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Yaesu - FT-840 Service manual

1. fa 00 20 27 2203 imu p 24 1 Y exa ues Tee 3 DDS UNIT OSC UNIT L TCXC ON 31922 GEG dje Casio 2 pa ues BAS RE b D MEN it E LOCAL Unit Downloaded by Amateur Radio Directory www hamdirectory info BALAK IN B 534 BREAK IN OFF agzaK IN ON OV aeta IN OFF Av TONE FNE 2 134 TONE 2v ENE OFF Ov TOME 3 SHOE TONE OFF Dv ime emp 1 TONE FNC OFF Asay t tenes 49 1 SIDE ONE OF M vco2 DESERT OSC UNIT on TCXU OPTION adaro ma cro 202 ue
2. re ae ee a 5 ISPLAY UNIT 3390101 840 Technical Supplement worn 2 0 flor panem om dais FM UNIT FM UNIT 747 1 ii 61901 aw 101 1016 IRNOM man p 1298 21977 MX 21087 Tem smu 929190 MAII 2 UNIT F333410 REG UNIT F3395000 F3392103 uw NE 1 5 Downloaded Amateur Radio Directory 1 3 www hamdirectory info Block Diagram wanoi r 223 peta vay exo 7 nm Im 91417 prota 25 16291248 ACT Fk 12270 CATE 9104 _ 82017 1847582 2304047 eser fiet 5
3. VFO M SCAN Oy M SCAN aav san orian 308 oran CW N 849 R 28w XT er loa 1037 55 Cw MODE 9 T i 8 Is onec moss 7 KIV CH Fuer lenraned 95V j 2 ow Far x ie HP e zo N 7 694 s s 5 MUTE ON MUTE OFF Ow Vp e mer FT i 3 AM AM Face J w AM F atr 1 BBY MUTE ON 070v MUTE 0 209 MUTE OFF OFF 3 ie 330v 19 40 820v1 VE 9 ix 392 e ON 6 27022 age 318v Bap 53 ge 8 C s Gy GOO nat 1 1 BREAK LOS rj NON Tey BREAK 32 970 527 PRI o IN QN BREAK IN OFF 418 E BREAK in dee 13 43 1 RREAK 3 139 109v t Ed BREAK ON 10 520 BREAK 19 134
4. x wes Obverse View of Chip Side EL out t nt RLGLOF i IA cos Obverse View of Chip Side 10 option Collector Bass Emitter 114 24 Q6401 6402 6403 6404 6405 6406 6407 6408 6414 Cathode 1 2 Anode 1 2 For Service Manuals Contact CHNICAL SERVICES CAO Rd Chinnor D6402 6403 6404 9 4QY 6405 6406 6407 Tek 01844 351694 apo qi 6408 6409 Email enquiries mauritron co 7E 11 Parts List Co Sa Caco Ce eo C C C C C C C C C C C C C C C C C C C C C C C C C CO t D D D REF MFGR S DESIG VALUE WV TOL FC 10 option DESCRIPTION TUNER MAIN UNIT PCB With Components Printed Circuit Board 6401 MICA CAP 6402 MICA CAP 6403 MICA CAP 6404 MICA CAP 6405 MICA CAP 6406 MICA CAP 6407 CHIP CAP 6408 CHIP CAP 6409 CHIP CAP 6410 CHIP CAP 6411 CHIP CAP 6412 CHIP CAP 6413 CHIP CAP 6414 CHIP CAP 6415 CHIP CAP 6416 CHIP CAP 6417 CHIP CAP 6418 CHIP CAP 6419 CHIP CAP 6420 CHIP CAP 6421 CHIP CAP 6422 CHIP CAP 6423 CHIP CAP 6424 CHIP CAP 6425 CHIP CAP 6426 CHIP CAP 6427 CHIP CAP 6428 CHIP CAP 6429 CHIP CAP 6430 CHIP CAP 6431 CHIP CAP 6432 CHIP CAP 6433 CHIP CAP 6434 CHIP CAP 6435 CHI
5. 1 PER Y ai 5 16401 6402 5403 gt 10021849 0921949 e z s n ov T 5 RL6414 2 Doi Da s 5 S o gt 5413 124 agP2003 DC12V AGP2093 9 12 RE A C6412 0 01 B 3 n t6203 86401 Parr 06401 Loz 47 1724 35409 05402 HSM2838 06406 HSM2838 A a lcu EDI Q a LO ET R6408 V 06402 47 1724 7 oec 0 2114 DTCt14t mn 7 Q R6410 66403 4722724 06403 HSM2838 DTCi 4EK 2 Soul O 2 98404 06412 UTC TZEK 06408 HSM2838 0716114 S col z Q 86405 s x 46405 06404 HSM2838 OTC114EK ey Q O 96406 0641 OTCITZEK OTCll4 Q T A e 06407 9540 076114 05405 HSM2838 OTEN AEK 5 d co 8 am IR VALUES ARE IN uF SOV 2 O gt O ITOR VALUES ARE TANTALUM t VALUES ARE IN H JTHERWISE NOTED M M HM M 10 option _ n 64
6. Lithium Back up Battery Replacement With the top and bottom covers removed locate the Lithium Battery on the Local Unit photo Using your finger slide the battery inward then slightly pry up the outer edge of the battery so that it ejects freely upward and outward through the slots at the top and bottom of the holder 1 Carefully note the polarity side facing up and battery type information J Install the replacement battery in the re verse manner Backup Switch Located next to the Lithium Battery is the memory back up switch 2002 labeled BACK UP It is normally kept in the ON position to ensure that memorized informa tion is maintained by a small amount of power from the lithium battery when the ra dio is off or the DC power source is removed If you do not plan to operate your radio for extended periods of time turn the switch to the OFF position to conserve battery life Move the selector using the tip of a ball point pen or similar object To prolong battery life ensure that the radio is turned on when switching the back up switch from OFF to ON This reduces the current demand placed on the battery by the radio s circuits from an un powered state Case Cover Screws Please note that there are three different types of screws used for top amp bottom cover attachment and front panel assembly Refer to the figure at the right for proper screw identification and belo
7. Sead C4023 95559 63 0292 110 500 SL 57 I 550 292 i 24002 L400 4002 1 10021405 0021426 35 462013 C4003 150 500 9L mw 300 a e oF i n a 4 an Zar gt 8951846 253 caos 285 55 At 4091 3881 FP TS vo w 5 LL 8 4004 12003 6094 m 62013 0020615 1002433 25 0602 n g3 5 5 F gt 3t atic UE 2409 589 825 596 SL 58 500 399 T saa AL s 5 X AL 4006 aG2013 4005 10020617 L40068 2020618 Les o ST 1 ds 2 m d 4015 X Zaa CiU 25 1108 350 36 oR 5009 500 gt 584 ox 4 sx as n N NULL AD 3 C4001 209 NO 02004 05 2014 5008 4003 1 0021855 ET Li 1 1 4026 33 4025 1109 500v Si 4011 10021857 4012 10021656 A62013 DCI2V T RESISTOR VALUES ARE IN 0 1054 T qm cdd e 4032 55 33e 5009 St Is 9 2 5 5 L Alt a C4034 12 500 SL T 64035 Sip 500 SL 1606 500 Service Contact CAPACITOR VALUES ARE IN 50 AE I MAURITRON TECHNICAL SERVICES 8 C
8. 26 CONNECTOR 2pcs INTERFACE Unit 0619201 REAR PANEL FAN TUNER MAIN Unit 1720308002 BINDING HEAD SCREW 3 8 124305001 SCREW M3X5B U31306001 OVAL HEAD SCREW 3 6 031306007 OVAL HEAD SCREW M3X6B U66300001 FLANGE N3 1266500002 FLANGE NUT NSNI 65500102 WING NUT N5NI DI U70005002 PLAIN WASHER FWS5NI U73005002 TOOTHED LOCK WASHER IW5NI TUNER CNTL Unit G2090447 LED R0807650 Q BOTTOM E E icri 8 FOOT 4 R0147070 STAND R3519210 PANEL Non designated parts are available only as part of a designated assembly 7E 27 FT 840 Technical Supplement 1 option Specification Type Dynamic Impedance 1600 309 at 1kHz Sensitivity 77dB at lkHz 0dB 1V bar Weight 2052 10 1 Ses per ol ERs El Ge L 0 10 dB H dm H dB 30 dB 1000 2000 5000 10000 20000 FREQUENCY H2 Circuit Diagram For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon 9 4QY Tel 01844 351694 Fax 01844 352554 Email enqui es mauritron co uk FST BROWN uP DWN YELLO
9. eee n ees 5M Exploded View amp Miscellaneous Parts 6 1 Accessory amp Optional Board Units Schematics Layouts amp Parts TCXO 4 Master Reference Oscillator 7A 1 Unit 747 7 1 112 Crystal Filter option 7C 1 YF 112C CW Crystal Filter option 70 1 10 Automatic Antenna Tuner option 7E 1 1 8 Hand Held Microphone 7F 1 MD 1cg Microphone option 7G 1 YH 77ST Lightweight Headphones option 7H 1 o7 ve Introduction This manual provides the technical infor mation necessary for servicing the FT 840 hf transceiver It does not include information on specifications installation and operation which are described in the FT 840 Operating Manual provided with the transceiver or on FT 840 accessories which are described in the manuals provided with each Servicing this equipment requires expertise in handling surface mount chip components Attempts by non qualified persons to service this equipment may result in permanent dam age not covered by warranty For the major circuit boards each side of the board is identified by the type of the majority of components installed on that s
10. 62090408 D 8009 DIODE 1552701 62060004 J 8001 CONNECTOR 11P SHVQ P1090595 L 8001 M RFC mH LALO3NA102K L1190189 Q 8002 IC MC3357P G1090145 Q 8003 IC M5223P 61090749 Q 8004 TRANSISTOR 2SC2712GR TE85R 033271270 Q 8005 TRANSISTOR 2SC2712GR TE85R 633271276 7B 3 FT 840 Technical Supplement Unit 747 option REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS Q 8006 TRANSISTOR DTC114EK 196 G3070002 Q 8007 TRANSISTOR DTAI43EK 196 G3070010 R 8006 CHIP RES 2 2K 1 10W RMC1 10T 222J J24205222 R 8007 CHIP RES 2 2 1 10W RMC1 10T 222J 424205222 8008 CHIP RES 47K 1 10W RMC1 10T 473J J24205473 R 8009 CHIP RES 1 5K 1 10W RMC1 10T 152J J24205152 R 8010 CHIP RES 3 3K 1 10W RMC1 10T 332J J24205332 R 8011 CHIP RES 33K 1 10W RMC1 10T 333J J24205333 8013 CHIP RES 15K 1 10W RMC1 10T 153J J24205153 R 8014 CHIP RES 1 5K 1 10W RMC1 10T 152J J24205152 R 8015 CHIP RES 330K 1 40 RMC1 10T 334 424205334 8016 CHIP RES 1 10W RMC1 10T 102J J24205102 amp 8017 CHIP RES 4 TK 1 10W RMC1 10T 472 J24205472 R 8019 CHIP RES 820 1 10W RMC1 10T 8214 J24205821 R 8021 CHIP RES 100 1 10W RMC1 10T 101J J24205101 R 8022 CHIP RES 150K 1 10W RMC1 10T 154J J24205154 R 8023 CHIP RES 4 TK 1 109 RMCI 10T 472 24205472 R 8024 RES 3 3M 1 10W RMC1 10T 335J J24205335 R 8025 CHIP RES 3 3K 1 10W RMC1 10T 332J J24205332 R 8026 CHIP RES 4 TK 1 104 RMC1 10T 472J J24205472 R 8027 CHIP RES 3 9K 1 10W 1 1
11. 98003 1 5223 Obverse View of Chip Side FT 840 Technical Supplement c 5 9 0 08005 21863 FC S34 R8032 IK x8002 8 2158 2 1 98205 S T 256271 268 82 18002 0021199 a3 2e mu Al 2 85 Pd as S NOTE RESISTOR VALUES ARE IN 9 1 10 CAPACITOR VALUES ARE IN sF SOV CAPACITOR VALUES ARE TANTALUM INDUCTOA YALUES ARE IN M UNLESS OTHERWISE NOTED Pin Pin 8 N Pin 1 MC3357P 08002 Collector Base Ernitter 2SC2712GR LG O8004 8005 lt N Pin 4 Pin 1 M5223P 08003 Collector 114 24 08006 78 1 Unit 747 option Parts List REF MFGR S DESIG VALUE Wy TOL DESCRIPTION YAESU P N VERS FM UNIT 747 Printed Circuit Board F2945101B C 8003 CHIP CAP 100pF 50V CH GRMA0CHIO1JBOPT K22170235 C 8004 CHIP CAP ATpF 50V CH GRM40CH470J50PT K22170227 C 8005 CHIP CAP 120pF 50V CH CRM40CH121J50PT K22170237 C 8006 CHIP CAP 0 luF 50V GRM42 6B104M25PT K22141809 C 8007 CHIP CAP 0 luF 50V CH GRM42 6B104M25PT K22141809 C 8008 CHIP CAP 120pF 50V CH GRM40CH121J50PT K22170237 C 8010 AL ELECTRO 50V RE 50V010M K40179013 C 8011 CERAMIC CAP Q 00iuF 50 UATO4X102K LO5AE K19149001 C 8012 CERAMIC CAP 0 001uF 50 YATO4X102K LO5AE K19149001 C 8013 CERAMIC CAP 0 luF 50V UATLOX104K
12. REF YAESU P N Description REF YAESU PN Qu 8 000601 PAN HEAD SCREW M3 x8 1 SCRE 18 f 120305002 _ W 4 27220 U20306001 2270 020300007 2 024306001 SCREW M3x6 _ n 071003002 SPRING LOCK WASHER SW3Ni T 2 22 3 HEAD SCREW M3 x4 Lot 3 2 LPF UNIT 21030194 CONNECTOR W NUT 3000078 79206 TERMINAL CW A 0145800 HOLDER 55 2 PA UNIT 1205307 qoow TYPE WIRE ASS LOS A gt lt N dl 2 830569700 RADIAL M2190020 MOTOR T9205619 For Service Manuals Contact CW ASS Y MAURITRON TECHNICAL SERVICES E o A 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk R3140681 KNOB Bpcs 0 VR A UNIT R3140691 R3146180 WINDOW R3145560 KNOB 2pes R3807590 PANEL ASS Y R3140390 KNOB 5 83140720 RUBBER RING P EY i lt Eo KNOB 2 3145570 KNOB W SCREW FT 840 Technical Supplement Explo Downloaded by Amateur Radio Directory www hamdirectory info REF YAESU P N Description Qt REF YAESU P N 22 Description 19 U00306001 PAN HEAD SCREW Max 8 2 1306007 _ OVAL HEAD SCREW M3 8B 18 020305009 BINDING HEAD SCREW M3xaNi__ 4
13. Dot i ul nel NO 28XX _ DIAL aso00249 2016 25 ER AGND SHIFT REG UNIT NO 29 F3392103 VR C UNIT XIII 1 2001 NO 73XX ogg Bees e7301 6RN 26358 F3394104 reeeo r19e9G0 71 92502 l 22602 tl GND 5 DDS 1 UNIT DOS 2 UNIT 2023 l 2519 26ra Roca SF __ F3335101 F3334101 se A 8 WR D UN TINO 74XX 2501 J2601 DATA i ooo 2999 o BEES 25658 510 9 Tra eror ato UE 30 5 esc 8 4 it 5990 _ _ 50600 l JP300 19208316 P0017 19206392 1 1 11111 999996 1 7202 19205308 gt lt G a P 429501 19206306 E 59 5 DISPLAY UNIT f SW C UNIT NO 30XX E sx i 93XX F 3390101 i F3393101 Codan Ae 8302 tot 000 909 03 9302 19205317 92 0 600 1 2 7201 2 amp lt v l RESISTOR YALUES ARE iM Q x CAPACITOR VALUES ARE IN SOV 23393103 NLESS OTHERWISE NOTED
14. E Q2048 pin 13 PLL Main Loop VCO RF millivoltmeter 60 mV 22245445222 at P2010 COOL LL ELIT II AD P2030 crzrzzzzzzzz gt 9 ur 8 VR2001 Side Tone amp Beep Level TP2004 Ground this post while aligning the Local Unit TP2001 Local BPF Check DC voltmeter 2190 N 422012 zz cxZ22zzzxx2 gt erxrrrzz JP2020 exELIIIIXXA1T212D R2101 P2036 2037 cLEILZZIIZIIJO CH AAAI 2222243 PIE een i EIIZIID R2251 R2046 Zrzrzzz gt 8 P2047 erzzrrzzzz22 oP fPhrrrrrza 12222 rrrzrzz2222 1 mi 8G oh 5 FER 4 i E a For Service Manuals Contact 3 MAURITRON TECHNICAL SERVICES 2 8 Cherry Tree Rd Chinnor Oxon 9 40 Tot 01844 351694 01844 352554 1 Email enquiries mauritron co uk 8 8 lt lt 1722015 LU Carrier Level Adjust amp Freq check TP2015 Carrier Level Adjust amp RF millivoltmeter gt 326 T2004 12005 Local Unit FT 840 Technical Supplement T2001 T2003 TP2004 TP2005 TP2014 TP2013 Ground this post 2001 Reterence Oscillator Check 1st Local Outpu PLL Main Loop VCO while aligning the Local BPF Check millivoltmeter miivcltmete DC voltmeter Local Unit DC voltmeter gt 190 mV
15. 25627 Q6E Pin 80 65 E Pin 84 SENI 25 Pian 40 M37450E4FP MY 021 06517 74 Q6505 HD74AC74FP Q6506 NJM2902M 06509 Gate NN else e Source Crain 56553 4 eas 2SK160 K5 Q6510 6511 Base Collector 250271268 LG Q6507 6515 PC7808H 06520 Pin s Ps T Pin 4 MB3763PF 06521 6522 NJM2903M Q6513 NJM2904M Q6508 Collector Base Emitter 134 065166519 Anode 1 Anode 2 10 option x Drain NS Collector PER N oe 25 104 28C2901L Q6501 6502 Q6503 6504 Input Ground Output NJM78L05UA 8C Q6514 Coilector Bass Emitter 2SA1235 ME 06512 Cathoda 1 2 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY HSM2838 Tek 01844 351694 Fax 01844 352554 D6508 enquiries mauritron co uk 7E 19 For Service manuais MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Email enquiries mauritron co uk 1 0 opti on Parts List REF MFGR S DESIG VALUE WV DESCRIPTION YAESU P N VERS TUNER CNTL UNIT PCB With Components CA1147001 Printed Circuit Board F3247000A 6501 CHIP CAP 0 OluF 50V GRM40B103M50PT 22170817 6502 220pF 50V
16. CO LU GG CU ZO 5A 18 VALUE WV TOL 1128 CHIP RES 1129 CHIP RES 1130 CHIP RES 1131 CHIP RES 1132 CHIP RES 1133 CHIP RES 1134 CHIP RES 1135 CHIP RES 1136 CHIP RES 1137 CHIP RES 1138 CHIP RES 1139 CHIP RES 1140 CHIP RES 1141 CHIP RES 1142 CHIP RES 1143 CHIP RES 1144 CHIP RES 1145 CHIP RES 1146 CHIP RES 1147 CHIP RES 1148 CHIP RES 1149 CHIP RES 1150 CHIP RES 1151 CHIP RES 1152 CHIP RES 1153 CHIP RES 1154 CHIP RES 1155 CHIP RES 1156 CHIP RES 1157 CHIP RES 1158 CHIP RES 1159 CHIP RES 1160 CHIP RES 1161 CHIP RES 1162 CHIP RES 1163 CHIP RES 1164 CHIP RES 1165 CHIP RES 1166 CHIP RES 1168 CHIP RES 1169 CHIP RES 1170 CHIP RES 1171 CHIP RES 1172 CHIP RES 1173 CHIP RES 1174 CHIP RES 1175 CHIP RES 1176 CHIP RES 1177 CHIP RES 1178 CHIP RES 1179 CHIP RES 1180 CHIP RES 1181 CHIP RES 1 104 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 108 5X 1 10W 5 1 10W 54 1 10W 5 1 10W 5 1 10W 54 1 10W 5 1 10 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 54 1 10W 54 1 10 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 54 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 DESCRIPTION
17. Ht oes e me RITRON TECHNICAL SERVICES e 8 Cherry Tree Rd Chinnor N Oxon OX9 4QY a Teli 01844 351694 01844 352554 Email enquiries mauritron co uk w 5B 1 Parts Layout X24C01AP Q2001 SN16913P 02029 2036 2044 Coliactor Base Emitter 254047 ZY Q2003 2004 2005 2015 2017 2019 2039 2043 2051 2053 2058 2061 2062 2063 2064 2065 Collector Emitter 2SA1179 M6 Q2007 Ground Output Input RN5VL45AA 05 02014 Pin 1 FQ7924 02023 IY 71 0 Emitter 2SC2812 L6 02002 201 Tub 2031 2032 2041 2054 2055 2059 2066 25 2714 JY Q2028 2037 2056 DW Collector Emittar Base 250669 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 02021 8 Cherry Tree Rd Chinnor Oxon OX9 4QY C 01844 351694 01844 352554 m Email enquiries mauritron co uk Basa Emitter 2SA1563 RL 02008 2010 2011 2018 Pin 8 DN Pin MC14028BFL Q2020 Vdd Output X C4 Input t Vss Input B TC4S81F C4 Pin TDA2003H PC1037H 02025 02026 02027 FT 840 Technical Supplement Collector Base Emitter 22812 L6 22002 2012 2024 2030 2031 2032 2041 2054 2055 2059 2066 C2714Y 22028 2037 2056 Emitter Base 2SD669A 0
18. 01122 iud a sioz C JC JC Jeroee oneg 91066 M6 60 1062 Pin 1 Emitter 402880 036 Coltector ei 179 Obverse View of Chip Side Obverse View of Chip Side For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY T ig 28 37 8 24 5 840 Technical Supplement MAIN Unit Parts List REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU VERS ADDR MAIN UNIT For Service Manuals Contact PCB with Components pco TECHNICAL SERVICES CA1005002 erry Tree Rd Chinnor Printed Circuit Board Tak 01844 351694 Fax D 444 352854 23391000 j Email enquiries mauritron co uk 1001 CHIP CAP O luF 25 B GRM40B104M25PT 22140811 1002 AL ELECTRO 224 16V 16V220M45X7TR2 K46120005 C 1003 CHIP CAP 270pF 50V CH GRM40CH271J50PT K22170245 C 1004 CHIP CAP 560pF 50V GRM40B561M50PT K22170802 1005 CHIP CAP 0 OluF 50V F GRM40F 103Z50PT K22171004 C 1006 CHIP CAP 270pF 50V CH GRM40CH271J50PT K22170245 1007 AL ELECTRO CAP luF 50V 50VO10MAXTTR2 K46170030 C 1008 AL ELECTRO CAP 104 16V 16V100M4X7TR2 K46120004 C 1009 CHIP CAP 0 OluF 50V F GRM40F 103Z50PT K22171004 C 1010 CHIP CAP 100pF 50V CH GRM40CH101J50PT K22170235 C 1011 CHIP CAP 100pF 50V CH GRM40CH101J50PT K22170235 C 1012 CHIP CAP 0 047uF 50V F GRM40F473Z50PT K22171008 1013 CHIP CAP 0 OluF 50V F 40 103250
19. 2 H 5 E qu lt T1001 T1002 T1003 T1004 11005 rent iF Interstage Alignment ment Diagram J1022 CM Coupler Balance Connaz DC voltmeter to pins 2 amp 3 1001 Ext Ant Tuner RF Pwr Adj 100 N position 100W lt 50 VR1017 Reverse ALC VR1010 RF Power Output Adj VR1016 50 W RF Power Output Adj VR1011 Ext Ant Tuner Pwr Adj VR1020 AM Output Adj TP1002 Ext Ant Tuner RF Pwr Adj connect to chassis gnd VR1005 Squelch Threshold VR1002 S Meter Full Scale T1016 T1017 T1018 T1019 T1020 T1021 TX IF interstage Transformers TP1001 NB Connect DC voltmeter T1022 T1023 NB VR1007 TX IF Gain For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron cO uk FT 840 Technical Supplement 4 fur 7 fim FM UNI FM UNIT QPTIQ vui arai sau ivi fe 40 Bad 1298 t LOCAL UN T F3392101 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tek 01844 351694 01844 352554 Email enquiries mauritron co uk OSC UNIT e Sas LATI EM EH
20. Ej SW D UNIT For Service Manuals Contact 3393 MAURITRON TECHNICAL SERVICES I I 8 Tree Rd Chinnor J Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk FT 840 Technical Supplement Circuit Diagram MAIN UNIT 1 m Dir NO 10XX Nest F3391000 Pipo d Limo 180990 jar 1 Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd hinnor Oxon OX9 40 01844 35164 Fax 01844 352554 OOD PPF 9449 48 00 Ovovovay Dv Cr ay Moor m gt i 3 0 Emaili 0 ow n IN Ov BREAK IN Fr 1243 FT 840 Technical Supplement ET nri BREAK iN ON 10 82v BREAK OFE 0 BREAK IN OFF Ov BREAKIN ON EV BREAK IN OFF 10v BREAK IN ON 3 90
21. gt 900 mV gt 642 mV L2002 GLIIZIIZJZ cox CLAU j AP P2033 JP2010 N crzzrzzzzzZZz2z CLZLULULTIA N 5 errzzrzzzz22z gt JP2045 222229222222 S JP2047 ecLLLIIZZZ222 62034 P2043 2035 O lt Owe eerrzzzzzz2z2 gt JP2008 C2057 e zzzxTTLTLULLTA CLLLUCLLIA P SETS MEE 12004 12005 2015 Q2044 pin 2 Carrier Level Adjust amp Freq check Carrier Level Adjust amp Freq check DDS 2 check RF millivoltmeter gt 320 mV RF millivoltmeter gt 65 mV Local Unit Alignment Diagram Alignment 1M001 12003 T2002 Local 192005 2014 JP2001 Reference Oscillator Check 1st Local Output Level Reference Qscillator check AF milivoltmoter miliveltmeter frequency counter 5 242880 MHz 3 Hz gt 900 mV 840 mV i Q2036 pin 2 DDS 1 check RF millivoltmeter gt 110 mV HR CIIIIIIIZIJJLZV aati oy Fa fae 92025 Pu iie zzrzrzzzzZ z a 8 TC2701 P2083 Reference Oscillator N 5 P2082 c L P2084 ITIITI P2065 rr zr 077070720 azz FF Sz 2222 2007 P2107 Je21 CL JP2104 l
22. 121110007 HEAD SCREW 108 220 1020306001 BINDING HEAD SCREW Maxe TU 4 00106007 HEAD SCREW M4 x 6B i 2 20306007 BINDING HEAD SCREW M3X 8B 7 070408007 BINDING HEAD SCREW Mix8B 2 D 094306001 TAPTITESCREW Mj 6 Sj 3030600 FLAT HEAD SC Lc 14 9 07100300 SPRING LOCK WASHER SW3Ni Y 802106001 SEMS SCREW SM3x6 220 003206001 1 SEMS SCREW 5 s 2 03106001 SCREW ASM3 x6 102205001 __5 5 SCREW SM 2 Ug 003308001 SEMS SCREW ASM3 x8 16 020304001 _ BINDING HEAD SCREW M3xi Lotj 2 LPF UNIT 1090194 CONNECTOR W NUT M4090061 SPEAKER 09000078 T9206152 TERMINAL CW ASS Y 0145800 HOLDER UNIT lt lt 7 100W TYPE 75206307 1 MAIN UNIT 21 T dE 9 OND Q1000081 lt LAMP W CAP DIAL FAN M2190020 MOTOR CW ASS Y K28179003 CERAMIC CAP R314068T KNOB 6pes 9314063 KNOB R3146180 window 99005249 ROTARY ENCODER 3145560 KNOB 2pcs 3807590 Sus 1 ASS Y 20 EQ 2 4 Ec AND ES 83145550 2 83145570 KNOB W SCREW 090061 206152 E MAIN UNIT Q1000081 LAMP W CAP 249 LO lt 3 Exploded View amp Miscellaneous Parts R0300720 UNIT DISPLAY
23. 840 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk Downloaded by Amateur Radio Directory www hamdirectory info YAESU MUSEN CO LTD Box 1500 Tokyo Japan YAESU U S A 17210 Edwards Rd Cerritos CA 90701 U S A YAESU EUROPE B V Snipweg 3 1118 Schipol The Netherlands Contents Introduction amp Chip Component Information 1 1 Circuit Board Access Battery amp Lamp Replacement e Alignment 3 1 Block Diagram amp Interconnection Diagram 4 1 Board Unit Schematics Layouts amp Parts MAIN nite go os ee case 5A 1 LOCAL SB 1 DDS 1 5 1 DDS 2 e EE hee mot dece Eine 5D 1 OSG Unit S Te SEI REG Unit 4213336 xe Ue EX ak 5 1 DISPLAY Unit ia aa aa aaa aa e 5G 1 EPF Unit AUS E Sree ee 5 1 PA Unit 51 1 VR A B C D Unit e s a aa s o s as a a aa aoa 5J 1 SW A B C DUnit 5 1 MIC Unit 5L 1 PHONE Unit ee
24. GRM40CH221J50PT K22170243 C 6503 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 6504 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 6505 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 6506 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 6507 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6508 CHIP CAP 0 047uF 50V GRM40F473250PT K22171008 C 6509 CHIP CAP 0 OluF 50V B GRM40BL03M50PT K22170817 C 6510 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6511 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6512 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6513 CHIP CAP 0 047uF 50 F GRM40F473250PT K22171008 C 6514 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 6515 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6516 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6517 CHIP CAP 0 047uF 50V F GRM40F473250PT K22171008 C 6518 CHIP CAP 0 Oluf 50V B GRM40B103M50PT K22170817 C 6519 CHIP CAP 0 10 25V GRM40B104M25PT K22140811 6520 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 6521 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6522 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6523 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 6524 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 6525 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6526 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 6527 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 6528 CHIP CAP 0 047uF
25. K22171004 C 2223 CHIP CAP 0 00107 50 B ORMAOBIO2M5OPT K22170805 2224 CHIP CAP O Olur 50V F GRM4OF103250PT 22171004 C 2225 CHIP CAP 330pF 500 CH GRM40CH331J50PT 22170247 C 2226 CHIP CAP 0 00102 50 GRMAOBIO2MSOPT 22170805 2227 0 002 50 GRM4OB102M50PT 22170805 2228 0 00112 50V GRM40B102M50PT 22170805 2229 CHIP CAP 0 00142 50V 02 50 22170805 2230 CERAMIC 0 00112 50V 0 050 102 28179001 C 2231 CHIP CAP 0 001uF 50V GRMAOBIO2MSOPT K22170805 C 2232 CHIP CAP 250 F GRM4OFlO4225PT 22141005 C 2233 CHIP CAP 3pF 50V CJ 4 5 K22170204 C 2234 CERAMIC CAP 0 01uF 16 Y EPOSOYIO3N 28129001 2235 CHIP CAP O Olur 50V F GRMAOF103250PT K22171004 2236 CHIP CAP 0 012 50 F GRM40F103Z50PT K22171004 2237 CHIP CAP 50V CH GRM40CHO9ODS0PT K22170210 C 2238 CHIP CAP 50V CH GRM40CH090D50PT 22170210 2239 CHIP CAP 10pF 50V CH GRMAOCHIO0DSOPT 22170211 C 2240 CHIP CAP 0 001uF 50V GRM40B102M50PT K22170805 C 2241 AL ELECTRO CAP 10 16V 16V100M4X7TR2 K46120004 C 2242 CHIP CAP 0 018uF 50V GRM40B183M50PT K22170820 CF2001 CERAMIC FILTER SFT 5 13900390 D 2009 DIODE 155226 TE85R 62070003 D 2010 DIODE 1552707 62060004 D 2011 DIODE 155226 TEB5R 62070003 D 2012 DIODE 1552707 2050004 D 2015 DIODE 10010 62090002 D 2017 DIODE
26. and select USB mode Key the transceiver and adjust VR5001 for 400 50 mA ALC Meter Zero Set J Select the ALC meter function then preset the RF PWR control fully cw max and the MIC amp VR1010 controls fully ccw min J Select USB mode key the transmitter and with no modulation adjust VR1013 to the point where the ALC meter just begins to deflect For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tal 01844 351894 01844 352554 Email enquiries mauritron co uk 3 3 Alignment Transmitter IF Interstage Transformers II Connect an in line wattmeter and 50 0 RF dummy load to the ANT jack Set the RF PWR and VR1010 fully cw max Tune to 14 200 0 MHz key the transceiver and adjust T1016 T1021 several times for peak indication on the wattmeter approx 100 W CM Coupler Balance CJ With the 50 dummy load connected to the antenna jack tune the transceiver to 14 200 0 MHz and select CW mode Connect the DC voltmeter between pins 2 and 3 of 41022 key the transmitter and adjust TC4001 on the LPF Unit for minimum indication on the DC voltmeter RF Power Output Adjust With the in line wattmeter and dummy load still connected set the RF PWR control fully cw max and VR1010 fully min Select CW mode and tune to 14 2000 MHz Key the transmitter and adjust VR1010 for 100 W 5 W as indicated on
27. 1 10 102J 424205102 R 6562 CHIP RES 100 1 10W 5 RMC1 10T 104J 04205104 R 6563 RES 100K 1 10W 5X RMC1 10T 104J J24205104 R 6564 CHIP RES 10K 1 10W 5 RMC1 10T 103J J24205103 R 6565 CHIP RES 10K 1 10W 5 RMC1 10T 103J J24205103 R 6566 CHIP RES 100K 1 10W 5 RMC1 10T 104 J24205104 amp 6567 CHIP RES 100K 1 10W 5 10 104J J24205104 R 6568 CHIP RES 100 1 10W 5 RMC1 10T 104 124205104 R 6569 RES 100 1 10N 5 RMC1 10T 104 124205104 R 6570 CHIP RES 4 TK 1 10N 5 10 472J J24205472 R 6571 CHIP RES 100 1 10 5 RMC1 10T 104 124205104 R 6572 CHIP RES 100K 1 10W 5 RMC1 10T 104J J24205104 R 6573 CHIP RES 100K 1 10W 5 RMC1 10T 104J J24205104 R 6574 CHIP RES 100K 1 10W 5 RMC1 10T 104J J24205104 R 6575 CHIP RES 100K 1 10W 5 RMCI 10T 104J J24205104 R 6576 CHIP RES 100K 1 104 5 RMCI 10T 104J J24205104 amp 6577 CHIP RES 100K 1 10W 5 10 104J J24205104 R 6578 CHIP RES 10K 1 10W 5 RMC1 10T 103J J24205103 R 6580 CHIP RES 10K 1 10W 5 RMC1 10T 103J J24205103 R 6581 CHIP RES 1 10W 5 107 102 124205102 R 6587 RES 4 TK 1 10N 5 RMC1 10T 472J J24205472 amp 6588 CHIP RES IM 1 10W 5 RMC1 10T 105J J24205105 R 6589 CHIP RES 1K 1 10W 5 10 102J J24205102 R 6590 CHIP RES 1 10W 5X 10 1020 424205104 6591 RES 1 L0W 5 0 102J 24205102 R 6592 RES 1 108 5 RMCI 10T 102 424205102
28. G3327147Y b 1 Q 2038 FET 2SK302Y TEBDR G3803027Y c l Q 2039 TRANSISTOR 2504041 63340477 4 1 0 2040 FET 29K210GR 858 G3802107G c l Q 2041 TRANSISTOR 2SC2812L6 TA 633281278 2 Q 2043 TRANSISTOR 25 4047 63340477 4 1 Q 2044 SN16913P 61090012 8 3 Q 2046 FET 25091068 TESSR 038021070 c l Q 2048 IC CX 79258 01090834 B 2 Q 2049 FET 2SK208Y 038020877 2 Q 2050 TRANSISTOR 2SC732TMBL 633073208 8 2 Q 2051 TRANSISTOR 2504047 63340477 1 Q 2052 FET 2521068 TEBSR 638021076 1 Q 2053 TRANSISTOR 25 4047 63340477 5 2 Q 2054 TRANSISTOR 25 281216 63328127 b 3 Q 2055 TRANSISTOR 2562812L6 T 63328127 3 Q 2056 TRANSISTOR 2527141858 03327147Y 1 Q 2057 TRANSISTOR For Service Manuals Contact 2502053 63320530 8 1 0 2058 TRANSISTOR TOE EON a Pd Chinnor 2904047 63340477 1 Q 2059 TRANSISTOR Oxon OX9 4QY 250281216 63328127F b 2 Q 2060 1 TCTANCOBAP TP2 01090975 d 2 Q 2061 TRANSISTOR 2504041 63340477 4 2 Q 2062 TRANSISTOR 25 4047 63340477 4 2 Q 2063 TRANSISTOR 2504041 G3340477 d 2 Q 2064 TRANSISTOR 25 4047 03340477 0 3 Q 2065 TRANSISTOR 25 4047 03340477 0 3 Q 2066 TRANSISTOR 25 281216 02328127 9 3 R 2001 CHIP RES 10K 1 109 5X RMCI l0T 1033 J24205103 R 2002 CHIP RES 10K 1 108 5X RMCI 10T 1033 24205103 R 2003 CHIP RES 10K L 108 5X RMCI 10T 103 24205103 R 2004 CHIP RES 330 l 10W 5X RMCI 10T 33 24205331 R 2005 CHIP RES 10K 1 10
29. Gate Drain 8Y JY 49 x x mittar X Bend b BAG Emitter Basa 25 732 25 2053 02050 02057 Anode 2 Anode 1 3 Anode 1 2 Cathode 1 Cathoda 3 Cathode 1 Anode 2 Cathoda 2 1SS226 C3 IMN10 N10 D2009 2011 2053 2054 D2021 Cathode 1 2 Anode 12 Anode 2 Anode 2 Cethoda Cathode Anode 1 Anode 1 Anode 2 15 103 155184 3 D2043 2045 2047 2050 D2051 HD6475348F 10 Q2008 af LECT agi 48 s For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tal 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk iB 56 22 Jg Azza B 05003 Obverse View of Chip Side 6 cea m 08 B o B f VET gama EU E moth 2 Ba woe g ma die 1 835 B For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 01844 352554 840 Technical Supplement Email enquiries mauritron co uk Obverse View of Chip Side For Service Manuals Contact MAURITRON TECHNICAL SERVICES LO C AL Unit Oxon OX9 4QY 01844 351694 Fax 01844 352554
30. 01844 352554 Email enquiries mauritron co uk ate ur 1261 amp 80 a Cue st m d E SPEI bore 8 92016 f TEE 9 8705 0128 Figs 5 dui 9 LET oso Be Te je Us ce Spr TFS E gt sape COE ir 42 ew 5 gminy 704 riso f i Cecu 80 SG 114512 D ELSE 05 Dr CR i HE ME kiia m m EM E 02 tions 252 ofits 213 a 8 168112 gS iin LJ l m LJ Gc UB 68112 s98 670 1 29 61133 158119 pazzi R1024 MEL 5 e TM m mo 80 1 10 V UR 7 o 103 9100 s AI 61043 8051 Ri 8103707 c 1179 t 1 0 RI dress 365 Cons A R1007 12719 2 2 VS E Do C els m BUE TEES 8 da o i aizi 75010 di 5921001 zum ieee oe Oven 3 BOs E 19 3 88 iT Lt 8 pg 010 z SH 25 paw a nika i me U B AS 66112 8 SB RU y ee Ton ERES
31. 15 15 15 515 229301 19206315 58307 N5990047 4 9313 4 50900 lt 7 N5090047 533 EY eem oF 59115 59316 930047 503007 pee oH Obverse View of Component Side Obverse View of Solder Side SW C Unit Parts Layout For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Ad Chinnor Oxon 9 407 Tel 01844 351694 01844 352554 Email enquiries mayritron co uk T we 57 3 t Obverse View of Component Side Obverse View of Solder Side 5K 1 SW A B C D Unit Parts List REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR SW A UNIT xxx PCB with Components 51308001 Printed Circuit Board F3394106 C 9101 CERAMIC CAP 0 luF 50V F 0 50 1047 K28179003 JP9101 WIRE ASSY 19206323 JP9102 WIRE ASSY 79206314 S 9101 PUSH SWITCH SPH121A94 N4090086 S 9102 PUSH SWITCH SPH121A94 N4090086 S 9103 PUSH SWITCH SPH121A94 N4090086 REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR SW B UNIT xxx PCB with Components 1051001 Printed Circuit Board F3394107 JP9201 WIRE ASSY T9206313 S 9201 PUSH SWITCH SPH121A94 N4090086 5 9202 PUSH SWITCH SPH121A94 N4090086 S 9203 PUSH SWITCH SPH121A94 N4090086 S 9204 PUSH SWITCH SPH121A94 N4090086 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 35
32. J24205681 R 1033 CHIP RES 100K 1 10W 5 1 10 104J J24205104 R 1034 CHIP RES 15K 1 108 5 1 107 153J 124205152 MAURPRON Contact R 1035 CHIP RES 100 1 108 5 1 107 101J 124205101 8 Chery Tree Rd Chinnor R 1036 CHIP RES 100 1 108 5 RMC1 10T 101 124205101 Tek 01844 351694 Fax 01844 352554 R 1037 CHIP RES 470 1 108 5X RMCI 1OT 471J J2420547 Emait enqui es maurttonco uk R 1038 CHIP RES 47K 1 10N 5 107 473J J24205473 R 1039 CHIP RES 220K 1 10W 5 RMCI 1OT 224 J24205224 R 1040 CHIP RES 220K 1 106 5X RMCI 10T 224J J24205224 R 1041 CHIP RES 2 TK 1 104 5 107 272J J24205272 R 1042 CHIP RES 100 1 10W 5X RMCI 10T 101J J24205101 R 1043 CHIP RES 56 1 10W 5 RMCI 10T 560J J24205560 R 1044 CHIP RES 100 1 108 5X RMCI 10T 101J J24205101 R 1045 CHIP RES 6 8K 1 104 5X RMCI 10T 682J J24205682 R 1046 CHIP RES 4 TK 1 104 5X RMCI 10T 472J J24205472 R 1047 CHIP RES 330 1 104 5X RMCI IOT 331J J24205331 R 1048 CHIP RES 330 1 10W 5X 1 107 331J J24205331 R 1049 CHIP RES 220K 1 104 5X RMCI 10T 224J J24205224 R 1050 CHIP RES 220K 1 104 5X RMCI IOT 224J J24205224 R 1051 CHIP RES 150 1 104 5 1 107 151J J24205151 R 1052 CHIP RES 100 1 104 5 RMC1 10T 101J J24205101 R 1053 CARBON FILM RES 27K 1 6N 5 16 273 07225273 R 1054 CHIP RES 10K 1 10W 5 107 103J J24205103 R 1055 CHIP RES 150 1 108 5 107 1511 J24205151 R 1056 CHIP RES
33. ge RS Os AE REG UNIT 4201 F3392103 quem d m a 2 5 M l gt 1 RX LINE 1 TX LINE 1 SW C UMIT COMMON LINE 0 I I SW O UNIT Hd For S rvice Manuals Contact fior firi MAURITRON TECHNICAL SERVICES mcn lm 8 Cherry Tree Rd Chinnor 4SSxth Oxon OX9 4QY fioa fir2 fira 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 4 1 Interconnection Diagram 4 2 003 19206323 Downloaded zi Amateur Radio Directory m T M E METER www hamdirectory info T TIT m m um 8 8 8 For Service Manuals Contact EUNT 78 MAURITRON TECHNICAL SERVICES i ded 8 Cherry Tree Rd Chinnor 2770922 79206220 iP03 8 X Oxon OX9 4QY 31990040 giois MAIN UNIT Tok 01844 351694 Fax 01844357534 NO 10XX BLUE Email enquiries mauritron co 3391000 LP GND I 002 E 8 rios j 24002 68 q ANT n PZ001 13206311 1 FM UNIT FM UNIT 747 OPT am J2 LPF UNIT De NO 80XX F2945101A NO 40300 ee eee I F2948000A _ ss CW F
34. i NO 20XX i NO 10XX BL UE oos F33921 J1031 3391000 19317928 CAR CAR S a tP Joa 2021 SND 05 8LE ecs amp e TEE 0000 4 OSC UNIT x NO 27XX 7 s1003 3392102 P6002 GRY 22022 TCXO UNIT TCXO 4 206311 1 I NO 28300 M UNIT 747 L OPT JON j 2ND L0 2ND LO 301 1022 ND 80x 42020 I F29 S101A i gt 19 58 o C s l 2 3 EOS EN CW FILTER UNIT 9 YF 112C 2 140 D RFG 0 RFG NO 82300 sno unc REG UNIT Pri BLO 12 6 F3396000 Jeso E aus EN 0 29x0 XE A c 3392103 Se ee zz 2 u 3 56 r199o9o 71 r Tee e 1 42802 42602 AM F ILTER UNIT GJ vo ans YF 112A 1 200 5 1 60 DDS 1 UNIT DDS 3 OPTION QJ C rx I Ne 25 x ND 8 3XX 2 23335101 F33 F 3396000 J8302 Rx 2 RX 1 vasa EIE RES 558 3 558 LE J 155 ksi CM PS102 BRN wis orm eee 5 x Tx Fu iru 31011 J1007 J1013 J017 1 21005 920 7 D PUL 102 8LE
35. 1 0v lt m OFF OV 033 2 i 8 sod Sexo e 1 ov 7 29 m BREAK IN ON DY Dd H LAM MODE 8 M spi JD aed me Oy E 37536 2 Y E n H m ME s Cg BREAK IN 9 MV BREAK iN ON 9 38 BREAK IN ON 3 BREAK IN OFF Ov BREAK IN BREAK a rav MODE OV AH oer modre 3 607 em T TAS C7 D 50 m AM MODE V M MODE 7 D2v other mds OV MAIN Unit AU MOO oye veo 8 34 SCAN PAST Qu Jae rr VFO Ov M SCAN 44v ast ON aSr ore TOU PEN SOU pAr 304 OPEN siv 59 399 Cw M MODE 175v lt a orner mogen 730 M muq 5 de rupe m 815v P ma ab CW Filter 2 P D i ANI owie E JP tu E 50 dri d OR so CN MODE 55v 7 mesas 030v 2 2 so ore Ag js kuku
36. 4 TuF 35V 35V4RTMAXTTR2 K46160004 C 1109 CHIP CAP 0 047uF 50V GRM40F473250PT K22171008 C 1110 CHIP CAP 2TpF 50V CH GRM40CH270J50PT K22170221 C 1111 CHIP CAP 2TpF 50V GRMAOCHZ70J50PT K22170221 C 1112 FILM CAP 9 0277 90V 50F2D273M K50170024 C 1113 CERAMIC CAP 0 00luF 50V UP050B102K A B K28179001 C 1114 AL ELECTRO CAP 10uF 16V 16V100M4X7TR2 K46120004 C 1115 AL ELECTRO CAP 22uF 16V 16V220M5X7TR2 K46120005 C 1116 AL ELECTRO CAP 10uF 16V 16V10044X7TR2 K46120004 C 1117 CHIP CAP 120pF 50V GRMA4O0CHI21J50PT 22170237 C 1118 CERAMIC CAP 0 001uF 50V 2 K28179001 C 1119 CHIP CAP 0 047uF 50V F GRM40F473250PT K22171008 C 1120 CHIP CAP 0 04742 50 GRM40F473250PT K22171008 C 1121 CHIP CAP 33pF 50V CH GRM40CH330J50PT 22170223 C 1122 CHIP CAP 33pF 50V CH GRM40CH330J50PT 22170223 C 1123 AL ELECTRO CAP 10uF 16V 16V100M4X7TR2 K46120004 C 1124 AL ELECTRO CAP 50V 50V010M4X7TR2 K46170030 C 1125 CHIP CAP 0 0luF 50 GRM40F103Z50PT 22171004 C 1126 CAP 0 017 50V KGRM40F103Z50PT K22171004 C 1127 AL ELECTRO CAP 10uF 16V 16V100M4X7TR2 K46120004 C 1128 AL ELECTRO CAP 50V SOVOLOM4X7TR2 K46170030 1129 CHIP CAP Q 0luF 50V GRM40F103Z50PT K22171004 C 1130 CHIP CAP 0 047uF 50 F GRM40F473250PT K22171008 C 1131 CHIP CAP 15pF 50V CH GRM40CH150J50PT 22170215 C 1132 CHIP CAP 15pF 50V CH GRM40CH150J50PT 22170215 C 1133 CHIP CAP 0 04
37. 5002 CERAMIC 0 04TuF 50 UPOSOF4732 A B 28179002 5003 0 04TuF 50 DD310 979BC473M50 26170758 5004 0 003308 50V 00107833250 K10176332 C 5005 CERAMIC CAP 1000 50 CH 00107 9101 50 K02175101 C 5006 CERAMIC CAP 0 047uF 50 UPOSOF4732 A B 28179002 5007 O OluF 16 Y EP050Y103N A K28129001 5009 CERAMIC CAP 0 00474 50V CK45B1H472MYS K10179025 C 5010 CERAMIC CAP 0 0047uF 50V B CK45B1H472MYS K10179025 C 5011 CERAMIC CAP 0 047uF 50 0DD310 979BC473M50 26170758 5012 0 04712 50 DD310 979BC473M50 26170758 5013 MICA 500V LCQ18751J5 K30275751 C 5014 MICA CAP 560pF 500V DMI9D561J5 K30279090 C 5015 CERAMIC CAP 0 0068uF 5007 XB 0130 8682 500 K10276682 C 5016 CERAMIC CAP 0 0068uF 500V XB 00130 86820500 10276682 C 5017 CERAMIC CAP 0 047uF 50 DD310 979BC473M50 K26170758 C 5018 CERAMIC CAP 0 047uF 50 DD310 979BC473M50 K26170758 C 5019 MICA CAP 360pF 500 DM15D361J5 K30279086 C 5020 MICA CAP 360pF 500V DM15D361J5 K30279086 C 5021 MICA CAP 560pF 500V DM19D561J5 K30279090 C 5022 CERAMIC CAP 0 0472 50 DD306 979F473250 26170726 5023 AL ELECTRO CAP 10uF 50 50 100 5 11 85 46170021 5024 O luF 50 50F2U104M K50177104 5025 CERAMIC CAP 0 047uF 50V UPO50F4732 A B 28179002 5026 AL ELECTRO CAP 104 50V
38. C 1284 AL ELECTRO CAP 4TuF 16V RC2 16V470M T34 K46120010 D 1001 DIODE 18V157 T1 G2060014 D 1002 DIODE 1SS83RE 02050007 1003 DIODE 1552707 2060004 D 1004 DIODE 1551987 62060011 1005 DIODE 1551987 62060011 D 1006 DIODE 1551981 02060011 D 1007 DIODE 15527011 02060004 1008 DIODE 1 157 1 02060014 D 1009 DIODE 1SS83RE 62050007 D 1012 DIODE 1SS270TJ 62060004 D 1013 DIODE 1552707 62060004 1014 DIODE 1SV157 T1 62060014 D 1015 DIODE 1SS83RE 62050007 D 1016 DIODE 1SS270TJ G2060004 D 1017 DIODE For Service Manuals Contact LSS83RE 62050007 1018 DIODE MAURITRON TECHNICAL SERVICES 1SS270TJ 2060004 D 1019 DIODE 15 157 1 62050014 D 1020 DIODE Teli 01844 351694 01844 352554 1SS83RF 2050007 D 1021 DIODE Email enguiies maurion co uk 1SV157 T1 G2060014 D 1022 DIODE 1SS83RE 62050007 D 1023 DIODE 1SV157 Tl 62060014 D 1024 DIODE 1SS83RE 62050007 D 1025 DIODE 1552701 62060004 D 1026 DIODE 1SS270TJ 02060004 1027 DIODE 1552701 02060004 D 1028 DIODE 1SS270TJ 62060004 D 1029 DIODE 1SV157 T1 G2060014 D 1030 DIODE 1SS83RE 62050007 D 1031 DIODE 1552707 62060004 D 1032 DIODE 1552701 62060004 D 1033 DIODE 1552707 62060004 D 1034 DIODE 1552707 62060004 D 1035 DIODE 1552701 02060004 D 1036 DIODE 1SS270TJ 2060004 D 1037 DIODE 1SV157 T1 62060014 5 10 840 Technical Supplement REF MFGR S DESIG VALUE WV TOL DESCRIPTION MAIN Unit YAESU P N VERS ADDR C2 J C2 CJ CJ UJ
39. K22171004 C 1014 CHIP CAP 150pF 50V CH GRM40CH151J50PT K22170239 C 1015 CHIP CAP 150pF 50V CH GRM40CHI51J50PT K22170239 C 1016 CHIP CAP 220pF 50V CH GRM40CH221J50PT K22170243 C 1017 CHIP CAP 0 0047uF 50V B GRM40B472M50PT K22170813 C 1018 CHIP CAP 680pF 50V B GRM408681M50PT K22170803 C 1019 CHIP CAP 390pF 50V CH GRM40CH391J50PT K22170249 C 1020 CHIP CAP 390pF 50V CH GRM40CH391J50PT K22170249 C 1021 CHIP CAP 0 OluF 50V F GRM40F103Z50PT K22171004 1022 AL ELECTRO CAP 10uF 16V 16V100M4X7TR2 K46120004 C 1023 CHIP CAP 0 25V F GRM40F 104225PT K22141005 C 1024 CHIP CAP 0 047uF 50V F GRM40F473Z50PT K22171008 C 1025 CHIP CAP 0 OluF 50V GRM40F103250PT K22171004 C 1026 CHIP CAP 0 OluF 50V F GRM40F103250PT K22171004 C 1027 CHIP CAP 0 OluF 50V F GRM40F 103Z50PT K22171004 1028 CHIP CAP 0 OluF 50V GRM40F103Z50PT K22171004 1029 CHIP CAP 100 50V GRM40CHLOLJ50PT K22170235 1030 CHIP CAP 10pF 50V GRMAOCHICODSOPT K22170211 C 1032 CHIP CAP 0 001uF 50V GRM40B102M50PT K22170805 C 1034 CHIP CAP 82pF 50V GRM40CH820J50PT K22170233 C 1035 CHIP CAP 180pF 50V CH GRM40CH181J50PT 22170241 1036 CHIP 180pF 50V CH GRM40CH181J50PT K22170241 C 1037 CHIP CAP A TpF 50V GRM40CH470J50PT 22170227 1038 CHIP 100 50V GRM40CH101J50PT K22170235 1039 CHIP CAP 0 00luF 50V GRM40B102M50PT K22170805 C 1040 CHIP CAP 10pF 50V GRM40CH100D50PT K22170211 1041 CHIP CAP 68pF
40. Precautions for Chip Replacement X Do not disconnect a chip forcefully or the foil pattern may peel off the board Never re use chip component Dispose of all removed chip components immediately to avoid mixing with new parts Limit soldering time to 3 seconds or less to avoid damaging the component and board Removing Chip Components Remove the solder at each joint one joint at a time using solder wick whetted with non acidic flux as shown below Avoid ap plying pressure and do not attempt to re move the tinning from the chip s electrode urs Sun Grasp the chip on both sides with tweezers and gently twist the tweezers back and forth to break the adhesive bond while alternately heating each electrode Be care ful to avoid peeling the foil traces from the board Dispose of the chip when removed O After removing the chip use the copper braid and soldering iron to which away any excess solder and smooth the land for in stallation of the replacement part 13 FT 840 Technical Supplement Chip Component Information Install a Replacement Chip As the value of some chip components is not indicated on the body of the chip be careful to get the right part for replacement CJ Apply a small amount of solder to the land one side where the chip is to be installed Avoid too much solder which may cause bridging shorting to other parts BN 0 Hold the chip with tweezers in the
41. R 6593 CHIP RES IK 1 10 5 10 102J 124205102 R 6594 CHIP RES 1 10W 5 RMC1 10T 102 424205102 R 6595 CHIP RES 1 10W 5 RMCI 10T 102J J24205102 R 6596 CHIP RES IK 1 10W 5 RMCI 10T 102J J24205102 R 6597 CHIP RES IK 1 108 5 10 102J J24205102 R 6598 CHIP RES 1 10W 5 10 1027 424205102 R 6599 RES 180 1 104 5 RMC1 107T 181J 24205181 R 6600 CHIP RES 100K 1 10W 5 RMC1 10T 104J J24205104 R 6601 CHIP RES 1 10W 55 RMCI 10T 102J J24205102 amp 6602 CHIP RES 100 1 10W 5 RMC1 10T 104J 424205104 R 6603 CHIP RES 10K 1 10W 5 10 103J J24205103 TC6501 TRIMMER CAP 10 ECV12W10X32 K91000012 TP6501 TP E MS 60124 05000016 TP6502 MS 60124 Q5000016 6501 POT 4TK B H0651A017 47KB 451745479 vF 7 25 840 Technical Supplement 10 option REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS 7E 26 FITTING VC SHIELD PLATE SCREW 2pcs UNIVERSAL JOINT 2 WIRE BIND MINI CLAMP 2pcs 116 4 PLT 1M BK 1 MN 2 R0140880 R0516730B R6141870 51000003 53000022 56000293 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 40Y 01844 351694 01844 352554 Email enquiries mauritron co uk FT 840 Technical Supplement 10 option View R0807640 CASE TOP 2
42. RMC1 10T 472J RMC1 10T 121J RMC1 10T 470J MC1 10T 152J MC1 10T 101J MC1 10T 181J MC1 10T 331J MC1 10T 471J MC1 10T 473J RMC1 10T 104J RMC1 10T 223J 1 107 681J RMC1 10T 104J RMCI 10T 332J RMC1 10T 683J RMC1 10T 223J RMC1 10T 332J RMC1 10T 471 RMCI 10T 102J 1 107 102J RMC1 10T 152J RMC1 10T 223J 1 107 272J 1 107 223J RMC1 10T 221J RMC1 10T 102J RMC1 10T 104J RMC1 10T 104J RMCI 10T 104J RMC1 10T 222J RMC1 10T 101J RMC1 10T 221J RMC1 10T 101J RMC1 10T 101J RMC1 10T 101J RMC1 10T 221J RMC1 10T 101J RMC1 10T 331J RMC1 10T 103J RMC1 10T 331J RMC1 10T 221J RMC1 10T 102J RMC1 10T 102J RMCI 10T 223J RMC1 10T 153J RMC1 10T 103J RMC1 10T 103J RMC1 10T 820 RMC1 10T 224J RMC1 10T 181J RMC1 10T 104J RMCI 10T 104J RMC1 10T 471J SO SU UO YAESU P N VERS ADDR J24205472 J24205121 J24205470 J24205152 J24205101 J24205181 J24205331 24205471 24205473 124205104 424205223 424205681 24205104 124205332 424205683 424205223 424205332 024205471 424205102 24205102 24205152 124205223 124205272 124205223 124205221 424205102 24205104 124205104 124205104 124205222 124205101 124205221 42420510 424205101 424205101 424205221 424205101 324205331 424205103 424205331 24205221 424205108 24205102 424205223 424205153 424205103 424205103 24205820 324205224 24205181 424205104 424205104 124205471 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Che
43. VALUE WY JP6503 TMP PLUG WIRE ASSY L 6501 COIL L 6502 L 6503 L 6504 06501 M06502 MOTOR Q 6501 FET Q 6502 FET Q 6503 TRANSISTOR Q 6504 TRANSISTOR Q 6505 IC Q 6506 IC Q 6507 TRANSISTOR Q 6508 IC Q 6509 IC Q 6510 FET Q 6511 FET Q 6512 TRANSISTOR Q 6513 IC Q 6514 IC Q 6515 TRANSISTOR Q 6516 TRANSISTOR Q 6517 IC Q 6519 TRANSISTOR Q 6520 IC Q 6521 IC Q 6522 IC FT 840 Technical Supplement 100uH 100uH 50 50 For Service Manuals Contact 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Email enquiries mauritron co uk TOL MAURITRON TECHNICAL SERVICES Tol 01844 351694 01844 352554 FC 10 option DESCRIPTION 1SS270TJ 1552701 1552707 15521077 1552707 15597 1552707 1552707 1552707 TMP J01X V6 TMP J01X V6 SC25 08WS SC25 04WS SC25 05WS SC25 06WS SC25 08WS 3022 04B TMP J01X V6 U 2001F FR9 5 LALO4NA102K LALO3TA101K LALO3TA101K RK16312M RK16312MA 2SK104J 2SK104J 25 29011 25 29011 HD74ACOOFP TR HD74AC74FP TR 2SC2712GR TE85R NJM2904M T2 NJM2902M T2 2SK160 T2B K5 2SK160 T2B K5 2SA1235 T12 2E NJM2903M T2 NJM78LOSUA TEZ 250271208 TE85R FALA4M T2B M37450M4 634FP FALA4P T2B UPCT808H MB3763PF G BND TF MB3763PF G BND TF YAESU P N VERS 62060004 G2060004 62060004 62060004 52060004 62090118 02060004 62060004 62050004 P1090210 P1090210 P0090627
44. VALUE WY TOL DESCRIPTION YAESU P N VERS ADDR 1057 M RFC 1058 M RFC 1059 M RFC 1060 M RFC 1061 M RFC 1062 M RFC 1063 M RFC 1064 M RFC 1065 M RFC b a 1001 1002 TRANSISTOR 1003 TRANSISTOR 1004 1005 TRANSISTOR 1006 FET 1007 FET 1008 FET 1009 1010 FET 1011 FET 1012 FET 1013 TRANSISTOR 1014 TRANSISTOR 1015 1 1016 TRANSISTOR 1017 TRANSISTOR 1018 TRANSISTOR Q 1019 TRANSISTOR Q 1020 FET Q 1021 TRANSISTOR Q 1022 TRANSISTOR Q 1023 FET Q 1024 IC Q 1025 TRANSISTOR Q 1026 IC Q 1027 TRANSISTOR Q 1028 TRANSISTOR Q 1029 FET Q 1030 IC Q 1031 TRANSISTOR Q 1032 TRANSISTOR Q 1033 TRANSISTOR 5 52 52 amp D 52 52 52 52 O 5 gt O gt 852 42 2 14 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk LAPOZTA1RBK LALO3VB102K LALO3VB102K LAPO2TA151K LALO3VB102K LAPO2TA151K LAPOZTAR22K LAPOZTA151K LAPO2TAR27K RCR 875D 392K RCR 875D 102K RCR 875D 392K LALO3VB102K LAPO2T4151K LAP02TA151K LAPOZTAISIK LALO4NALO1K LALO4NA101K LAPOZTA101K 2SK160 T2B 25 4047 29 28121 6 M5223FP 72A 25028121 6 25 1577 35 131 2 12 3SK131 T2B V12 35 131 2 V12 35 131 2 V12 2SK302Y TE85R 25 1577 250281216 29 28121 6 M521
45. adjust VR1020 for 25 watts on the wattmeter Side Tone amp Beep Level Connect AF millivoltmeter across 4 0 resistor or speaker connected to the EXT SPKR jack CJ Connect the CW key to the KEY jack adjust the RF PWR control fully ccw min then key the transceiver Adjust VR2001 on the Local Unit for 150 mV i20mV Speech Processor Check Set VR1012 to 120 clock position the MIC gain to the 10 o clock position and the RF PWR control fully clockwise max Inject a 1 4001 Alignment signal from the AF generator to the microphone jack pin 8 With the wattmeter and dummy load connected to the antenna jack tune to 14 200 0 MHz USB mode key the transmitter and adjust the SG level for an ALC meter indication of S 3 CJ Press the PROC button and confirm ALC meter indication of S 5 or more CW Semi Beak in Delay Time CJ Adjust VR1015 to the 12 o clock position then set the RF PWR control fully ccw min and select CW mode 3 Repeatedly key and un key the transmitter ad justing VR1015 for a delay time of approxi mately 1 second following key release Transmitter Carrier Point LSB Temporarily jumper TP2003 to chassis ground then connect the AF signal generator to the MIC jack and adjust the output level for 3mV Select USB mode turn the transceiver off then press and hold the SSB amp FM buttons together while turning the transceiver on again thi
46. 0 047uF 50 0 047uF 50 10uF 50V 0 luF 50V 100uF 251 0 04742 50 luF 50V 560pF 50V 470uF 16V Q 047uF 50 0 470 50 0 04TuF 50 0 47uF 50V Q 4TuF 50V 1QuF 50V 330uF 16V For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon 9 4QY Tol 01844 351694 01844 352554 Email enquiries mauritron co uk FT 840 Technical Supplement zj J x x3 CR2032 DD107 979SL221J50 UP050F4732 A B UP050F4732 A B UP050F4732 A B UP050F473Z A B UP050F473Z A B UP050F473Z A B UP050F4732 A B UPOS0F473Z A B 50V100M5X11TR5 50 4737 50 4732 50V100M5X11TR5 50 1047 25V101M6X11TR5 0 50 4737 50V010M5X11TR5 DD109 979SL561J50 RE2 16V471M UP050F4732 A B UP050F4732 A B UP050F4732 A B 50 47 5 11715 50VR47M5X11TR5 50V100M5X11TR5 16V331M8X11TR5 155101 155101 155101 155101 1552707 1552107 1352707 1552707 1552707 1SS83RE 188270TJ 1SS270TJ SC25 05WS CSK M50 08 R41 0576F SC25 06WS SC25 04WS SBRK 25 1 YAESU P N VERS CA1085001 F3398000 P2000047 K26171037 K28179002 K28179002 28179002 28179002 828179002 28179002 28179002 828179002 46170021 828179002 K28179002 K46170021 K28179003 46140005 28179002 k46170017 K26171047 40129049 281 79002 K28179002 K28179002 K46170016 K46170016 K46170021 K46120002 G2090223 G2090223 62090223 G2
47. 1 10W 54 X 2801 XTAL 10 48576MHz FT 840 Technical Supplement 4 option DESCRIPTION YAESU P N VERS F3337101A GRM40B103M50PT K22170817 GRM40B103M50PT K22170817 GRM40CH330J50PT 22170223 5124 04BHPB P1090426 250271208 5 033271270 RMC1 10T 101J J24205101 RMC1 10T 102J J24205102 RMC1 10T 104J J24205104 GF 1031 H9500140 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 7A 3 Notes For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 7A 4 FT 840 Technical Supplement Circuit Diagram GAD UN 501 MUTE MIC TONE FM Unit 747 option im edP FM UNIT NO 1 it 2609 0 0 i i i 5 PT 68019 0 0047 vR8002 10 8 8025 3 3K C8036 0t B 98006 06007 OTCIIGER 8023 4 7K R8025 2 52232 F294S101A 88019 112252 2 820 88010 BOIL 3 2 1 sov 8007 2 2K CF8001 5 508001 CDB SSC 126 1 50v 88028
48. 10K 1 10H 5 RMC1 10T 103J J24205103 R 2091 CARBON FILM RES 1 1 6N 5 0167 010 07225010 R 2092 CARBON FILM RES 10 1 68 5 RD16TPJ100 J07225100 R 2093 CARBON FILM RES 100 1 68 5 RDI6TPJ101 J07225101 R 2094 CHIP RES 100 1 10N 5X RMCI IOT 101J J24205101 R 2095 CARBON FILM RES 100 1 64 5 RDI6TPJ101 J07225101 R 2096 CHIP RES 100 1 10 5 RMC1 10T 101J J24205101 R 2097 CHIP RES 100 1 10W 5 RMCI 10T 101J J24205101 amp 2098 CHIP RES 68K 1 10 5 RMCI IOT 683J J24205683 R 2099 CHIP RES 4 TK 1 104 5 10 472J J24205472 R 2100 CHIP RES 150 1 10W 5 10 154 424205154 R 2101 CARBON FILM RES 180 1 68 5 RDI6TPJ181 J07225181 amp 2102 CHIP RES 22K 1 109 5 RMCI 10T 223J J24205223 R 2103 CHIP RES 4T 1 104 5 10 470J 24205470 R 2104 CHIP RES 10K 1 10W 5X RMC1 10T 103J 124205103 R 2105 RES 410 1 10W 5 10 47 24205471 R 2106 CARBON FILM RES 470 1 68 5 RDI6TPJATI J072254T1 R 2107 CHIP RES 4T 1 10W 5 RMCI 10T 470J 124205470 R 2108 CARBON FILM RES 470 1 66 5 RD16TPJ471 07225471 R 2109 CHIP RES 100 1 104 5 RMCI 10T 101J 324205101 2110 CHIP RES 4 TK 1 108 5 10 472J 424205472 R 2111 CHIP RES 470 1 10W 5 RMCI 10T 471 424205471 R 2112 CHIP RES 470 1 10N 5 RMC1 10T 471J J24205471 R 2114 CARBON FILM RES 470 1 64 5 RDI6TPJ471 J07225471 R 2115 CARBON FILM RES 470 1 64 5 RDI6TPJ471 J07225471 R 2117 CHIP RES 100 1 10W 5 RMC1 10T 101J
49. 1552707 62060004 D 2018 DIODE 15597 62090118 D 2019 DIODE 1552707 62060004 D 2021 DIODE 10 7108 62070078 D 2023 DIODE 1552707 62060004 D 2024 DIODE For Service Manuals Contact 1SS270TJ 62060004 D 2025 DIODE CIR ae Chae 1552707 62060004 D 2026 DIODE Oxon 9 4QY 1552707 62060004 D 2027 DIODE 15527074 62060004 D 2028 DIODE 15527077 62060004 D 2029 DIODE 1552707 2060004 D 2030 DIODE 1552707 62060004 D 2031 DIODE 1552707 62060004 D 2032 DIODE 1552707 62060004 2033 DIODE 1552707 62060004 D 2034 DIODE 15527077 62060004 D 2035 DIODE 1527077 62060004 D 2036 DIODE 1552707 62060004 D 2037 DIODE 1552707 62060004 D 2039 DIODE 1552707 62060004 D 2040 DIODE 1552707 62060004 D 2041 DIODE 1552707 62060004 D 2042 DIODE 15553 78 02050008 D 2043 DIODE 1SV103 TPE4 62050013 58 9 FT 840 Technical Supplement LOCAL Unit REF MFGR S DESIG VALUE WV DESCRIPTION YAESU P N VERS ADDR D c C C4 C4 C C CS C4 C CS C C C4 C4 CS C4 CS CO lt gt C2 C CUtUEC E UE UEEE LUE EU CE L L 5B 10 2044 DIODE 2045 DIODE 2046 DIODE 2047 DIODE 2048 DIODE 2049 DIODE 2050 DIODE 2051 DIODE 2052 DIODE 2053 DIODE 2054 DIODE 2001 CONNECTOR 2002 CONNECTOR 2003 CONNECTOR 2004 CONNECTOR 2005 CONNECTOR 2006 CONNECTOR 2007 CONNECTOR 2008 CONNECTOR 2009 CONNECTOR 2010 CONNECTOR 2011 CONNECTOR 2012 CONNECTOR 2013
50. 50 100 5 11785 46170021 C 5027 CERAMIC 0 25 X UAT10X104K L45AE 19149025 C 5028 AL ELECTRO CAP 50V 50V100M5X11TR8 46170021 C 5029 CERAMIC CAP 0 04742 50V UP050F4732 A B 28179002 C 5030 CERAMIC CAP 0 047uF 50 UPOSOF4732 A B 28179002 C 5031 AL ELECTRO 100 50V 50V 100M5X11TR5 K46170021 C 5032 AL ELECTRO CAP 1008 50V 50V 100M5X11TR5 K46170021 C 5033 CERAMIC CAP 0 047uF 50 UP050F4732 A B K28179002 C 5035 AL ELECTRO CAP _ 10002 167 1681025 13X16 K40129021 C 5036 CERAMIC CAP O 01uF 16 Y EPO5OY103N A K28129001 C 5038 AL ELECTRO CAP luF 50V 50 010 5 11785 K46170017 C 5039 AL ELECTRO CAP luF 50V 50VO10M5X11TR5 K46170017 C 5040 CERAMIC CAP 0 047uF 50 F UPOSOF4732 A B 28179002 C 5041 CERAMIC CAP 0 047uF 50 F UPO50F4732 A B 28179002 C 5042 CERAMIC CAP 0 0luF 16 Y EPOSOY103N A K28129001 C 5043 CERAMIC CAP 0 047uP 50 UP050F4732 A B 28179002 5044 120pF 5007 LCQ17121J5 K30275121 C 5045 CERAMIC CAP 0 0068uF 500V XB CD130XB682K500 K10276682 C 5046 CERAMIC CAP 0 0068uF 5007 XB CDI30XB682K500 10276682 C 5047 CERAMIC CAP 0 047uF 50 F UPO50F4732 A B 28179002 D 5001 DIODE 11ES 62090499 D 5002 DIODE 11851 62090499 51 5 840 Technical Supplement Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR D 5003 DIODE 11ESI 62090499 D 5004 DIODE 11ES1 02090499 D 5005 DIODE 1SS83RE 62050007
51. 50V GRM40F473250PT K22171008 C 6529 CHIP CAP 0 047uF 50 GRM40F473Z50PT K22171008 C 6530 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6531 CHIP CAP 0 047uF 50V F GRM40F473Z50PT K22171008 6532 TANTALUM CHIP CAP luF 16V 1 105 1 89 78120009 6533 CHIP 0 OluF 50V GRM40B103M50PT K22170817 C 6534 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6535 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6536 CHIP 0 OluF 50V GRM40B103M50PT K22170817 C 6537 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6538 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6539 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 6540 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 6541 CHIP CAP 0 Oluf 50V GRM40B103M50PT K22170817 6542 AL ELECTRO 100uF 10V RC2 10V101M K40109015 C 6543 CHIP CAP 0 04708 50V F GRM40F473250PT K22171008 C 6544 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 6545 CHIP CAP 0 047uF 50V F GRM40F473250PT K22171008 C 6546 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 6547 CHIP CAP 0 luF 257 B GRM40B104M25PT K22140811 21 840 Technical Supplement 10 option REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS C 6548 CHIP CAP O luF 25V GRM40B104M25PT K22140811 6549 CAP 0 luF 25V GRM40B104M25PT K22140811 C 6550 CHIP CAP 0 01uF 50V GRM40BIO3MSOPT K22170817 C 6551 CHIP CAP 0 O1uF 50V GR
52. 55 9 806v Do 25020 5 6 IW Qv 6 681 di 5 29 A 95009 a5 O on 88 2508820 2 E 135v ox Pt 2 96 13 39V 5 05003 05004 5 Qn te 11 1 TIES 05007 n e 13 56 13 52v 13 55v 12 70 Nu FAN CN 0 244 SN FAN GFF 376 ay 95010 1 95011 gu 521 28C2001L 8 R5029 4 7K 1 ful sss gt mo zoo 95006 O mo o BATAAM 2 m RX Ix 1 l 2SA1283D RESISTER VALUES ARE IN 8 1 6 CAPACITOR VALUES ARE IN gF SOV 1NDUCTOR VALUES ARE IN H UNLESS OTHERWISE NOTED for Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon 9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 2 ae FT 840 Technical Supplement PA UNI T 3395000 5 BC 0 8v 12 28 0021969 ENT 5009 1357 65016 CSQ 7 NO 50XX 0047 8 200 002 R5012 3 3 14 39 3W 0 047 Bc 03 85006 5010 15003 47 15002 1 5 1 2w 82 1 10021403A RSOI3 3 3 IW Ov 06v 2363133 it ic in eem ont s s m Sol 95001 2 82 2SC2166 us 8 23 d MM Jv 05
53. C1023 64028 e BU Pi ps i Qis 7 722222226 Pi Obverse View of Component Side For Service Manuals MAURITRON TECHNICAL SERVICES 8 Cherry Trea Rd Chinnor Oxon OX9 40 Tel 01844 351694 Fax 01844 252554 Email ak 10 Collector Emitter 47k BN1A4P Circuit diagram ka En Collector 47k Pin 1 Emitter Circuit diagram Bie de BN1A4P M5218AL MC14584BCP 01001 1009 01002 01003 BA1A4P 01004 1007 FT 840 Technical Supplement JAIOZ S c 1 Q n Hot m ss 18 E JP 1001 C rrrzr22222322 2 JP 1006 C1010 014 um gt 2 222 5 c 91908 J Obverse View of Component Side CC Emitter 4 Circuit diagram 47k Pin 1 10k Collector Q 1 A M ka Circuit diagram m Es MB218AL MC14584BCP 9 01002 01003 7 Ground Pin 8 MS Output Ground IR Q1005 N Pin 7 L7809 O1005 Obverse View of Solder Side Downloaded by Amateur Radio Directory www hamdirectory info Pin IR3M03A 01006 NI Collector Emitter 25 20021 01008 10 option For Service Manuals Contact MAURITR
54. C6667 0 018 Heb 2480008 151815 5 5 a T c i j 8 8 uPC7808H 15603 oI 58 ix gl 06579 06619 s ym FALAAP E e 8 SH 3 E oO ee 06517 M37450M4 634FP 155270 55270 10 option Downloaded Amateur Radio Directory EU UIS www hamdirectory info 55 gt E 625 ext S FES FPI 0 mr pe lt sy For Service 5 Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tol 01844 351694 01844 352554 Email enquiries mauritron co uk 7E 17 For Service Manuals Contact 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 il iri uritron co uk Tuner Control Unit Parts Layout ol Obverse View of Chip Side a gt ENT 3 Bris 822 12225522 Obverse View of Component Side Obverse View of Chip Side Pin 28 Pin 40 37450 4 MY Q6517 HD74AC0 06505 HD74AC7 Q6506 2902 06509 Gate Source 2SK160 i 06510
55. Email enquiries mauritron co uk Parts List REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR LOCAL UNIT PCB with Components 8 0 R0124131 R0125800 6000191 CA1023001 PCB with Components W REG OSC DDS 1 DDS 2 UNIT CP4463001 Printed Circuit Board 23392101 2001 HOLDER CR2032 TYPE P2000047 C 2001 CHIP CAP 0 00luF 50V B GRM40B102M50PT K22170805 C 2002 CHIP CAP 0 00luF 50V GRM40B102M50PT 22170805 C 2003 CHIP 0 OluF 50V F GRM40F103Z50PT K22171004 C 2004 CHIP CAP 0 OluF 50V F GRM40F103250PT K22171004 C 2005 CHIP CAP 0 OluF 50V F GRM40F 103Z50PT K22171004 2006 CHIP CAP 27pF 50V CH GRM40CH270J50PT K22170221 2007 CHIP 27pF 50V CH GRM40CH270J50PT K22170221 2009 CHIP CAP 0 00luF 50 B GRM40B102M50PT K22170805 C 2010 CHIP CAP 0 00142 507 B GRM40B102M50PT K22170805 2011 CHIP 0 00107 50V B GRM40B102M50PT K22170805 C 2012 CHIP CAP 0 00luF 50V GRM40B102M50PT 22170805 2013 CHIP 0 Q1uF 50V F GRM40F103250PT K22171004 C 2014 CHIP CAP 0 022uF 25V B GRM40B223K 25PT K22140812 2015 CHIP CAP 0 luF 25V GRM40B104M25PT K22140811 C 2020 CHIP CAP 0 luF 25V F GRM40F104225PT K22141005 C 2021 CHIP CAP 0 0479 50V F GRM40F473250PT K22171008 C 2022 CHIP CAP 0 luF 25V GRM40B104M25PT K22140811 C 2023 CHIP CAP 0 luf 25V B GRM40B104M25PT K22140811 C 2024 CHIP CAP 0 001uF 50 GRM408102M50PT K22170805 2025 CHIP CAP 0 001uF 5
56. Emitter 2SC4047 ZY Q1002 1031 1032 1037 1038 1044 1045 1046 1047 1048 1052 1053 1054 1059 1061 1063 1066 1067 1069 M5223FP 01004 1035 1041 M5218AFP 01015 1040 1043 1049 Source Drain Gate 25 302 TY 01011 1020 1029 1056 Obverse View of Cathode 1 2 Pin Anode 1 Anode 2 Cathode uPC1037H TC4W66F 7 D62783F HSM2838 A6 H 01024 01026 1050 01030 1034 D1052 1059 1061 1062 1064 1065 1066 1079 1080 1081 1084 1088 1122 MAIN Unit AITF Obverse View of Component Side Cathode 1 2 Anode 1 Anode 4 Anode 1 Cethode 2 For Service Manuals Contact Anode 1 Anode 2 Cathode 1 Cathode 4 Cathode 1 Anode 2 MAURITRON TECHNICAL SERVICES HSM2838 HSB88WSTR 155226 C3 PANEM D1052 1059 1061 D1055 D1075 Tel 01844 351894 Fax 01844 352554 1062 1064 1065 Email enquities mauritron co uk 1066 1079 1080 1081 1084 1088 1122 5A 3 MAIN Uint Collector Base Emitter 2SA1563 RL 01033 1039 Pin 1 01051 Gate Sour e Orain 2541250 JD Q1068 5 4 16 Pin 1 u PD4028BG 01036 Collector Emitter 2541179 M6 1060 1062 Downloaded Amateur Radio Directory www hamdirectory info For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694
57. L45AE 19149025 8014 0 047uF 50 F GRM40F473Z50PT K22171008 C 8015 TANTALUM CAP 1 5uF DNIEIR5M1S K70147155 C 8016 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 8017 CHIP CAP 0 00luF 50V GRM40B1C2M50PT K22170805 C 8018 AL ELECTRO CAP 22uF 25V RE2 25V220MMA K40149025 C 8019 FILM CAP 0 0047uF 50V 50F2U472M K50177472 C 8020 AL ELECTRO luF 50V RE 50V010M K40179013 C 8021 FILM CAP 0 0068uF 50V 50F2U682M K50177682 C 8022 AL ELECTRO CAP 22uF 25V RE2 25V220MMA K40149025 C 8023 FILM CAP 0 0033uF 50V 50F2U332M 50177332 8024 AL ELECTRO CAP 501 RE 50V010M K40179013 C 8025 CHIP CAP 0 001uF 50V GRM40B102M50PT K22170805 C 8026 CHIP CAP 330pF 50V UJ GRM40UJ331J50PT K22170347 C 8027 CHIP CAP 330pF 50V UJ GRM40UJ331J50PT K22170347 C 8028 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 C 8029 CHIP CAP 33pF 50V UJ GRM40UJ330J50PT K22170323 C 8031 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 8032 CHIP CAP 0 O1uF 50V B GRM40B103M50PT K22170817 C 8033 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 8035 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 8036 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 CD8001 CERAMIC DISC CDB455C7 H7900180 CF8001 CERAMIC FILTER LF H8S H3900387 D 8002 DIODE For Service Manuals Contact 185270 62090408 D 8003 DIODE WATE TM chm 155270 62090408 eae Moke Tas Oe toe Fac MSE Coo 62090180 D 8006 DIODE RRR 62060004 D 8008 DIODE
58. P0090623 P0090624 P0090625 P0090627 P0090523 P1090210 T9206156A T9317880 T9315911A L0021955 L1190090 L1790107 L1790107 Q9000563 Q9000563 G3801040J 63801040 633290101 033290101 61091226 61091225 633271276 61091374 61090908 G3801607E G3801607E 03112357 61091073 61091325 033271270 03070001 61091601 63070006 61090294 01091224 61091224 7 23 10 option 24 REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS R 6501 CHIP RES R 6502 CARBPM FILM RES 6503 CHIP RES 6504 CHIP RES 6505 CHIP RES 6506 CHIP RES 6507 CHIP RES 6508 CHIP RES 6509 CHIP RES 6510 CHIP RES 6511 CHIP RES 6512 CHIP RES 6513 CHIP RES 6514 CHIP RES 6515 CHIP RES 6516 CHIP RES 6517 CHIP RES 6518 CHIP RES 6519 CHIP RES 6520 CHIP RES 6521 CHIP RES 6522 CHIP RES 6523 CHIP RES 6524 CHIP RES 6525 CHIP RES 6526 CHIP RES 6527 CHIP RES 6528 CHIP RES 6529 CHIP RES 6530 CHIP RES 6531 CHIP RES 6532 CHIP RES 6533 CHIP RES 6534 CHIP RES 6535 CHIP RES 6536 CHIP RES 6537 CHIP RES 6538 CHIP RES 6539 CHIP RES 6540 CHIP RES 6541 CHIP RES 6542 CHIP RES 6543 CHIP RES 6544 CHIP RES 6545 CHIP RES 6546 CHIP RES 6547 CHIP RES 6548 CHIP RES 6549 CHIP RES 6550 CHIP RES 6551 CHIP RES 6552 CHIP RES R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
59. R R 10K 24 10K 100K 4T 100 1 5K 1 5K 33K 33K 1 5K 1 5 100 100K 47K 4TK IK 1K 100K 100K 10K 10 10K 100 220 100 220 100 220 100 10 47K 4 7K 2 2M 47K 220K 100K 10K 4 TK 47K 10K 2 2M 10K 33K 10K 1 10N 5 1 24 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10H 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 1 10W 5 RMCI 10T 103J RD12TJ240 1 107 103J RMCI 10T 104J RMC1 10T 470 RMCI 10T 104J RMC1 10T 152J RMC1 10T 152J RMC1 10T 333J RMC1 10T 102J RMC1 10T 333J RMC1 10T 152J RMC1 10T 152J RMC1 10T 104J RMC1 10T 104J RMC1 10T 473J RMC1 10T 473J RMC1 10T 102 RMC1 10T 102J RMC1 10T 104J RMC1 10T 104J RMC1 10T 102J RMC1 10T 102J RMC1 10T 103J RMCI 10T 103J RMC1 10T 103J RMCI 10T 104J RMC1 10T 224J RMC1 10T 104J RMC1 10T 224J RMC1 10T 102J RMC1 10T 102J RMCI 10T 104J RMC1 10T 105J RMC1 10T 224J RMC1 10T 104J RMC1 10T 103J RMC1 10T 473J RMC1 10T 472J 10 225J RMC1 10T 473J RMCI 10T 105J RMC1 10T 224J RMCI 10T 104J RMC
60. R 1006 CHIP RES 100 1 10W 5 RMC1 10T 101J J24205101 R 1007 CHIP RES 100 1 10 5 10 104J 424805104 R 1009 CHIP RES 10K 1 104 5 10 103J J24205103 R 1010 CHIP RES 100K 1 10W 5 RMC1 10T 104J J24205104 R 1011 CHIP RES 82K 1 108 5 RMC1 10T 823J J24205823 R 1012 CHIP RES 100 1 10W 5 RMC1 10T 101 J24205101 R 1013 CHIP RES 82K 1 10W 5 10 823J J24205823 R 1014 CHIP RES 100 1 10W 5 10 104J 424205104 R 1015 CHIP RES 150 1 10W 5 RMC1 10T 1510 424205151 1016 CHIP RES 1 10W 5 RMC1 10T 1020 04205102 R 1017 CHIP RES 2 2K 1 10 5 1 10 222J J24205222 R 1018 CHIP RES 33 1 108 5 RMCI 10T 330J J24205330 840 Technical Supplement MAIN Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR R 1019 CHIP RES 100 1 104 5X 1 107 101 J24205101 R 1020 CHIP RES 100 1 108 SX RMCI 10T 101 J24205101 R 1022 CHIP RES 470 1 108 5X RMCI 10T 471J J24205471 R 1023 CHIP RES 470 1 108 5X 1 107 471J 24205471 R 1024 CHIP RES 220 1 10 5X RMCI 10T 221J J24205221 R 1025 CHIP RES 470 17108 5X RMC1 107T 471J J24205471 R 1026 CHIP RES 680K 1 108 5 RMC1 10T 684J 24205684 R 1028 CHIP RES 15K 1 10W 5 RMCI 10T 153J J24205153 R 1029 CHIP RES 22K 1 108 5X RMCI IOT 223J J24205223 R 1030 CHIP RES 22K 1 108 5X 107 223J J24205223 R 1031 CHIP RES 470 1 104 5X RMC1 107 471J J24205471 R 1032 CHIP RES 680 1 10W 5 1 107 681
61. R 2038 CHIP RES R 2039 CHIP RES R 2040 CHIP RES amp 2041 CHIP RES amp 2042 CHIP RES R 2044 CHIP RES R 2045 CHIP RES R 2046 CARBON FILM RES R 2047 CHIP RES R 2051 CHIP RES R 2053 CHIP RES R 2054 CHIP RES R 2055 CHIP RES R 2056 CHIP RES R 2057 CHIP RES R 2058 CHIP RES R 2059 CHIP RES R 2060 CHIP RES R 2061 CHIP RES R 2062 CHIP RES R 2063 CHIP RES R 2064 CHIP RES R 2065 CHIP RES R 2066 CHIP RES R 2067 CHIP RES R 2068 CHIP RES R 2069 CHIP RES R 2070 CHIP RES R 2071 CHIP RES R 2072 CHIP RES R 2073 CHIP RBS R 2074 CHIP RES R 2075 CHIP RES amp 2077 CHIP RES R 2078 METAL FILM RES R 2079 CHIP RES R 2081 CHIP RES R 2083 CHIP RES R 2084 CHIP RES R 2085 CHIP RES R 2087 CHIP RES 840 Technical Supplement 10K 4 TK 0 100K 4 TK 100 47K 100K 4TK 470 470 470 100 100 470 410 100K 100K 100K 3 3 100 100 100K 1 5K 220K 47K 1 10W 1 104 1 104 1 10W 1 10W 1 10H 1 10W 1 10W 1 10W 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 80167 103 RMCI 10T 1033 RD16TPJ471 RD16TPJ103 RMC1 10T 471J RMC1 10T 103J RMC1 10T 4712 RMC1 10T 104J RMC1 10T 471J RD16TPJ472 RMCI 10T 472J RMC1 10T 472J RMC1 10T 471J RMCI 10T 103J RMC1 10T 103J RMC1 10T 102J RMCI 10T 102J RMC1 10T 103J RMCI 10T 102J
62. RD16TPJ471 RMC1 10T 102J RMCI 10T 223J RMC1 10T 104J RMCI 10T 103J 1 10 472J RMC1 10T 102J RMC1 10T 000J RMC1 10T 104J RMC1 10T 472J RMC1 10T 104 1 10 4732 RMC1 10T 102 RMC1 10T 104J RMC1 10T 102 RMCI 10T 473J RMC1 10T 102J RMC1 10T 471 RMC1 10T 471J RMC1 10T 471J RMC1 10T 104J RMC1 10T 104J RMCI 10T 471J RMC1 10T 471J RMC1 10T 104J RMC1 10T 104J RMC1 10T 104J ERX 1SJ3R3P RMC1 10T 104J RMCI 10T 104J RMCI 10T 104J RMC1 10T 152J 1 107 224J RMC1 10T 473J J07225103 424205103 107225471 07225103 424205471 424205103 124205471 124205104 124205471 407225412 424205472 424205412 424205471 424205103 124205103 124205102 424205102 24205103 424205102 107225471 24205102 024205223 424205104 424205103 324205474 424205108 424205000 424205104 424205472 124205104 424205473 424205104 124205104 24205102 424205473 24205102 124205471 124205471 424205471 124205104 124205104 124205471 424205471 124205104 24205104 24205104 422309020 424205104 324205104 24205104 24205152 24205224 424205473 For Service Manuals Contact MAURITRON TECHNICAL SERVICES L C A L s t 8 Cherry Tree Rd Chinnor ni Oxon Ox9 407 Tel 01844 351694 01844 352554 Email enquiries mauritron co uk REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR R 2088 CHIP RES 100 1 24 5 RMC1 2 101 J24275101 R 2089 CARBON FILM RES 1 1 6W 5 0167 010 1 07225010 R 2090 CHIP RES
63. UNIT em FOOT 2pcs 50 o o 82100200 2pcs 5 R35002606 HANOLE R4500271A HANDLE END 2pcs R0518931 REAR PANEL 60807580 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon 9 4QY Tel 01844 351694 Fax 01844 352554 Email mauritron co uk Non designated parts are available only 88 part of a designated assembly 6 1 4 option Circuit Diagram Ec oe 1 TCXO UNIT 28 F33371014A ea e i 2803 1 0 CH NOTE RESISTOR VALUES ARE IN 3 1 10W CAPACITOR VALUES ARE IN F SOV UNLESS OTHERWISE NOTED Parts Layout Obverse View of Component Side Obverse View of Chip Side Collector ae For Service Manuals Contact 2SC2712GR LG MAURITRON TECHNICAL SERVICES 02801 B Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 enquiries mauritron co uk 7 1 840 Technical Supplement Parts List REF MFGR S DESIG VALUE WV TCX0 4 Printed Circuit Board C 2801 CHIP CAP 0 0luF 50V C 2802 CHIP CAP 0 0luF 50 C 2803 CHIP CAP 33pF 50V J 2801 CONNECTOR Q 2801 TRANSISTOR R 2801 CHIP RES 100 1 10W 5 R 2802 CHIP RES 1 10N 5 R 2803 CHIP RES 100K
64. desired position and apply the soldering iron with a motion line that indicated by the arrow in the diagram below Do not apply heat for more than 3 seconds J Remove the tweezers and solder the elec trode on the other side in the manner just described 14 FT 840 Technical Supplement Unit Access Turn the transceiver off and disconnect all cables Remove the 5 screws affixing the top cover Lift the top cover slightly and disconnect the speaker cable plug from its connector You may now remove the top cover to ex pose the component side of the Main Unit photos 1 amp 2 g Circuit Board Access Placethe set upside down on the work sur face then remove the 6 screws affixing the bottom cover Remove the cover to expose the components side of the Local Unit photos 3 amp 4 To remove the PA Unit with the set upside down remove the 2 screws affixing the PA Unit to the transceiver chassis photo 5 Next remove the connecting wire and co axial cables leading from the Main and Lo cal Units then remove the PA Unit from the chassis photo 6 Photo 1 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk speaker cable Photo 2 Photo 6 FT 840 Technical Supplement Lithium Back up Battery Replacement Backup Switch amp Case Cover Serews
65. with Components Printed Circuit Board S 9401 TACT SWITCH S 9402 TACT SWITCH 5 9403 TACT SWITCH S 9404 TACT SWITCH 5 9405 TACT SWITCH 5K 4 051303001 3393102 090047 090047 N5090047 N5090047 N5090047 FT 840 Technical Supplement MIC Unit Circuit Diagram MIC UNIT NO S85X0 1 11533083103 JP9S01 18206306 Parts Layout Obverse View of Component Side Obverse View of Solder Side Parts List REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR MIC UNIT PCB with Components CA1058001 Printed Circuit Board F3393103 9501 CERAMIC CAP 0 001uF 50V UPOSOBIOZK A B K28179001 J 9501 CONNECTOR FM214 8SS P0090158 JP9501 WIRE ASSY 79206306 51 1 840 Technical Supplement PHONE Unit Circuit Diagram 3394101 _ 18206304 Parts Layout ghee Sse Xil AE Obverse View of Component Side Obverse View of Solder Side Parts List REF MFGR S DESIG VALUE W TOL DESCRIPTION YAESU P N VERS ADDR PHONE UNIT PCB with Components 1059001 Printed Circuit Board F3394101 J 9601 CONNECTOR S G4617803 P1090351 JP9601 WIRE ASSY T9206304 Eor Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 5 1 FT 840 Technical Supplement
66. 0 392J J24205392 R 8028 CHIP RES 12K 1 10W RMC1 10T 123J J24205123 R 8029 CHIP RES 12K 1 10W RMC1 10T 123J J24205123 R 8030 CHIP RES 1 10W RMC1 10T 105J J24205105 R 8031 CHIP RES 22K 1 10W RMC1 10T 223J J24205223 R 8032 CHIP RES 1 10W 1 107 102J J24205102 R 8033 CHIP RES 5 6K 1 10W RMC1 10T 562J 24205562 R 8034 CHIP RES 100 1 10W RMC1 10T 104J J24205104 R 8035 CHIP RES 22K 1 108 RMC1 10T 223J J24205223 R 8036 CHIP RES 15K 1 10W RMC1 10T 153J J24205153 R 8037 CHIP RES 100 1 10 RMCI 10T 101J J24205101 R 8038 CHIP RES 470 1 10W RMCI 10T 471 J24205471 R 8039 CHIP RES 22K 1 10W RMC1 10T 223J 24205223 R 8040 CHIP RES 4 TK 1 10 RMC1 10T 472 424205472 R 8041 CHIP RES 100 1 10W RMC1 10T 101J J24205101 R 8042 CHIP RES 1K 1 104 RMC1 10T 102J J24205102 R 8043 CARBON FILM RES 820 1 6W RD16PJ824 J01225824 T 8001 COIL R12 G458X L0021863 T 8002 COIL R12 4043A L0021199 TH8001 THERMISTOR 112252 2 G9090016 VR8001 POT 2 2K B H0651A009 2 2KB J51745222 VR8002 10K B H0651A013 10KB J51745103 VR8003 POT 4 TK B H0651A011 4 7 J51745472 X 8001 8 6708MHz HC 49 U 3P H0102855 X 8002 XTAL 8 2158MHz HC 49 U 3P H0102854 7B 4 840 Technical Supplement YF 112A option Circuit Diagram AM FILTER UNIT 0 83 F3396000 XF8301 J8301 112 P1090426 170 RFG GND GNO NOTE CAPACITOR VALUES ARE IN F UNLESS OTHERWISE NOTED Parts Layout For Service Manuals
67. 0 471J 124205471 R 1081 RES 150 1 10W 5 10 7 154 124205154 R 1082 RES 6 8K 1 104 5 RMC1 10T 682 124205682 R 1083 CHIP RES 100 1 10W 5 107 104 424205104 R 1084 CHIP RES 10K 1 10W 55 1 10 103J J24205103 R 1085 CHIP RES 10K 1 10N 55 0 103J J24205103 amp 1086 CHIP RES 10K 1 10W 5 107 103 324205103 R 1087 CHIP RES 2 2M 1 10W 5 1 107 225 J24205225 R 1088 CHIP RES 100K 1 10 5 RBMC1 10T 104J J24205104 R 1089 CHIP RES 1 104 5 10 102J 424205102 R 1090 RES 680 1 10W 55 RMC1 10T 681 24205681 R 1091 RES 8 2K 1 104 5 RMC1 10T 822 424205822 R 1092 CHIP RES 560K 1 10W 5 RMC1 10T 564J J24205564 R 1093 CHIP RES 1 10W 5 10 1024 424205102 1094 RES 100 1 104 5 RMC1 10T 10 24205101 R 1095 CHIP RES 100 1 10W 55 10 101J J24205101 R 1096 CHIP RES 68K 1 104 5 10 683J J24205683 R 1097 CHIP RES 1 10W 5 RMC1 10T 102 424205102 R 1098 CARBON FILM RES 390 1 66 5 RD16TPJ391 07225391 R 1099 RES 100 1 104 5 1 107 101J 424205101 1100 CHIP RES 2 2 1 1098 5X RMC1 10T 222J 424205222 R 1101 CHIP RES 1 5K 1 10W 5 RMC1 10T 152J J24205152 R 1102 CARBON FILM RES 47 1 44 5 RD14TPR470J J05245470 R 1103 CHIP RES 68K 1 10W 5 1 10 683J J24205683 R 1104 CHIP RES 3 1 10W 5 RMC1 10T 332J 424205332 R 1105 470 1 10W 5 RMC1 10T 47
68. 0 Technical Supplement 10 option Interconnection Diagram l 1080252 1286387 r z 3 tz Az 27 a o EE 2 53 ar 8 ag 5 L gt FROW 22 n 2 9 P 004 78217436 TUM Ia PI 263 73317339 TUNER ASSY Ter TUNER MATN TUNER CNTL 030624 1 6508 2909162 26430525 Gao 9 9 13 5 13 5 21003 26504 20230523 25090523 ee L l Interfaee Unit Circuit Diagram zl 53 P1002 21001 19317937 19217936 gt 28 58 58 E 5 Ei A E 3 ER oi 5 25 3 5 t 01007 8 155270 53 5 E Stir 470 16 21603 01003 3 wl 458 6 21693 lt 45 348 2 003 2 MCI S5848CP 3 2521902 21004 ot 5 5800 e 91002 1 5216 7 1 840 Technical Supplement Interface Unit Parts Layout 981924 3 912 n r 1018 7x oN 55 Si JP1026 w Ts Sc dies 2
69. 003 av 40 6 LO021403A 85013 3 3 gt 45092 T5004 1090255 C5015 5 9022236 4 0 0068 500 X8 3S 2cc3240 2T ui csais 0 0068 5009 gt gt i SS C5045 a 0 0058 500 13 5 N An 35 0 0058 500 xB 25 3240 21 e o RO 85014 3 3 1 85017 5 5001 5 39 3W 0 047 Bc TP G v 85015 3 3 iW 13 57 5002 2v 13 52 TP G gt u Sq 65043 TE Bs 0 047 05005 15583 gt 45003 AJ 00970 591 za 1 A00 onm Ss Bo SK 1 Ba D 1 1 1 i 8 25004 R0100970 13 5 LAN ON 13 57 198 n2 5001 FAN OFF 0 10V 97 m T9206322 5 95010 2 Br S 6 521 5 eon 2 1 45007 P0090621 00 lt u Downloaded Amateur Radio Directory www hamdirectory info PA Unit For Service Manuals Gontact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tok 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk Parts Layout Obverse View of Component Side Obverse View of Solder Side For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 40 01844 351694 01844 352554 Email enquiries mauritron co uk XE tn RR R
70. 005 If the counter frequency differs by more than 3 Hz from 5 242880 MHz adjust the TCXO 4 trimmer if the TCXO is installed or TC2701 7 Confirm a level of at least 900 mV on the RF millivoltmeter DDS 1 Check Tune the transceiver to 7 045 1 MHz and select LSB mode Connect the RF millivoltmeter to 02036 2 and confirm the RF millivoltmeter indicates at least 110 mV 3 2 DDS 2 Check J Tune the transceiver to 7 045 1 MHz and select LSB mode Connect the RF millivoltmeter to Q2044 pin 2 and confirm an indication of at least 65 mV PLL BPF CJ Connect the RF millivoltmeter to TP2001 CJ Tune the transceiver to 7 005 66 MHz and select LSB mode Adjust T2001 T2003 alternately several times for peak indicated RF voltage at least 190 mV Carrier Level Adjust amp Frequency Check Connect RF millivoltmeter to TP2015 Alternately adjust T2004 and T2005 several times for peak indicated RF voltage at least 320 mV O Replace the RF millivoltmeter with a fre quency counter 0 Select the indicated mode and frequency ac cording to table below then set the MIC amp RF PWR controls fully ccw min and press the MOX button to transmit Frequency _ 8 213 50 MHz 8 215 80 MHz Mode Confirm the carrier frequency is within 20 Hz of the displayed counter frequency PLL Main Loop VCO Connect the DC voltmeter to TP2013 then adjust and check the VCO voi
71. 043 8 20M 812 4043 8 20M R12 4043A 8 20M R12 40434 8 20M R12 4043A 8 20M R12 G620A 4 1 2001F FR6 47 M 12 4 47 1M 812 413 4T 0M 4 203 TR6X3 4 1 203 TR6X3 4 2D3 TR6X3 41 1M R12 M411A 47 1M R12 M411A 47 1M R12 M411A 8 21M 12 63674 8 20M R12 40434 8 20M R12 4043A 8 20M 112 4043 8 20M R12 40434 112102 2 112152 2 112102 2 112302 2 112503 2 TP E MS 60124 5 60124 RH063MCS2R RH063MCS3R RHO63MC16R RHO63MC13R RHOGSMCS3R RHO63MC14R RHO63MC14R RH063MC14R EVN DCAA03B814 RHO63MC14R RHO63MC14R EVN DCAA03B55 RHOG3MC13R 1KB RHOG3MC14R _ RHOG3MCIAR 063 538 4TM15AU XF 8 2 242 02 WLS 04 0 L0021199 L0021199 L0021199 L0021199 10021199 10021199 10021192 10021351 10021225 10021224 L0021482A L0020788A L0020788A L0020788A L0021225 10021225 10021225 10021395 10021199 10021199 10021199 10021199 69090008 69090039 69090008 69090010 69090041 95000016 95000016 451794108 451794471 451794472 151794105 451794102 51794472 151794103 451794103 151794103 150784103 151794103 451794103 150784504 51794102 51794103 451794103 451794472 H1102090 11102128 56000191 840 Technical Supplement Downloaded Amateur Radio Directory Circuit Diagram www hamdirectory info YY LOCAL UNIT NO 20XX ea 3392101 i
72. 05103 2219 CHIP RES 10K 1 10W 5 RMC1 10T 103J J24205103 2220 CHIP RES 0 1 10W 5 RMC1 10T 000 J24205000 2221 CHIP RES 0 1 10W 5 RMC1 10T 000J J24205000 2222 CHIP RES 0 1 10W 5 RMC1 10T 000J J24205000 2223 CARBON FILM RES 220K 1 68 5 RD16TPJ224 J07225224 2224 CHIP RES 3 3K 1 104 5 RMCI 10T 332J J24205332 2225 CHIP RES 470K 1 104 5 RMC1 10T 474 J24205474 2232 CHIP RES 47 1 104 5 10 470J J24205470 R 2234 CARBON FILM RES 100 1 6W 5 RDI6TPJ101 J07225101 2235 CHIP RES 100 1 10W 5 1 107 104 J24205104 2236 CHIP RES 470 1 10W 5 RMC1 10T 471J J24205471 2237 CHIP RES 0 1 10W 5 RMC1 10T 000 J24205000 2238 CHIP RES 0 1 10W 5 RMC1 10T 000J J24205000 2239 CHIP RES 0 1 10W 5 RMCI I10T 000 424205000 2240 RES 10K 1 108 5 1 107 103J J24205103 2241 CHIP RES 0 1 104 5 1 107 000J J24205000 2242 CHIP RES 0 1 10W 5 RMC1 10T 000J J24205000 2243 CHIP RES 10K 1 108 5 10 103J J24205103 2244 CHIP RES 1 1 10W 5 107 102J 424205104 2245 CHIP RES 10K 1 108 5 RMCI 10T 103J J24205103 2246 CHIP RES 0 1 104 5 RMC1 10T 000J J24205000 2247 CHIP RES 10K 1 104 5 RMC1 10T 1034 J24205103 2248 CHIP RES 330 1 10W 5 RMC1 10T 331J J24205331 2249 CHIP RES 0 1 104 5 RMC1 10T 000J J24205000 2250 CHIP RES 0 1 10 5 RMC1 10T 000 J24205000 2251 CARBON FILM RES 10K 1 6 5 RDI6TPJ103 J07225103 2252 CHIP RES 10K 1 104 5 RMCI 10T 103J J24205103 2253 CHIP RES 0 1 108 5 RM
73. 06 5407 6408 L6404 16405 2 554 2 554 2 554 10022064 0022048 15402 0021949 5401 0021949 5403 0021950 wo C8413 0 018 I Car RLS401 6402 815203 RLB8ZO 8 6405 RLG406 RLS407 AGP2003 0 12 AGP2003 00129 AGP2003 00129 AGP2003 0 12 AGP2003 0 12 AGP2003 DCI2V AGP2003 0 12 66229 0 01 gt 96408 uaz 27 1724 96409 DTCI1 4EX 25401 05405 HSM2838 T3206 54 gu SRM e T al oL tb s a 86209 5 6 co2 458592 e Loa 96410 8 5 j 55 Eu Lees 95 cos a a C 6410 1 GND tos 47 1 24 0 114 NO JP6402 9 79206153 set Lu cup m dem gp s 3 Loe aser E OTC114EK O 13 5 Nd 2 1 85 R6413 tor 42 1 20 964 4 06409 HSN2838 OTCII4EK no gS 85 For Service Manuals Contact MAURITRON TECHNICAL SERVICES t0 96408 8 Cherry Tree Rd Chinnor S Oxon OX9 4QY LN 01844 351694 Fax 01844 352554 89 Emaii enquiries mauritron co uk 7E 8 For Service 5 Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 4 9 CM
74. 07 GRM408102M50PT 22170805 C 2026 CHIP 0 00 50V GRM40B102M50PT K22170805 C 2027 CHIP CAP 0 001uF 507 GRM40B102M50PT 22170805 2028 CHIP 0 00142 50 GRM40B102M50PT K22170805 2029 CHIP CAP 0 001uF 507 GRM40B102M50PT K22170805 C 2030 AL ELECTRO CAP 10uF 16V 16V100M4X7TR2 K46120004 C 2031 AL ELECTRO CAP 10uF 16V 16V100M4X7TR2 K46120004 C 2032 CHIP CAP 0 OluF 50V F GRM40F 103Z50PT K22171004 C 2033 CHIP CAP 0 001uF 50V GRM40B102M50PT K22170805 C 2034 AL ELECTRO CAP 10uF 16V 16V10044X7TR2 K46120004 C 2035 AL ELECTRO CAP 10uF 16V 16V10044X7TR2 K46120004 C 2036 CHIP CAP 0 001uF 50 GRM40B102M50PT K22170805 C 2037 CHIP CAP 0 OluF 50V F GRM40F103250PT K22171004 C 2038 CHIP CAP 0 OluF 50V F GRM40F103250PT 22171004 C 2039 CHIP 0 OluF 50V F GRM40F103250PT K22171004 C 2040 CHIP CAP 0 Oluf 50V F GRM40F103250PT K22171004 C 2041 CHIP CAP 0 Oluf 50V F GRM40F 103Z50PT K22171004 C 2042 CHIP CAP 0 OluF 50V F GRM40F103250PT K22171004 C 2043 TANTALUM CHIP 0 22uF 35V TESVA1V224M1 8R K78160027 C 2044 AL ELECTRO CAP 10uF 16V 16 100 4 7 2 K46120004 2045 AL ELECTRO CAP 47uF 16V RC2 16V470M T34 K46120010 C 2046 CERAMIC CAP 0 iuF 50V F UP050F1042 A B K28179003 C 2047 CHIP CAP 0 OluF 50V F GRM40F103250PT K22171004 2048 CHIP CAP 0 OluF 50V F GRM40F 103Z50PT K22171004 a 5 5 840 Technical Supplement LOCAL Uni
75. 07225221 58 14 gt n 840 Technical Supplement LOCAL Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR R 2143 CHIP RES 22K 1 104 5 RMCI 10T 223 J24205223 R 2144 CHIP RES 100 1 10W 5 RMCI 10T 101J J24205101 R 2145 CHIP RES 100 1 104 5 107 104 24205104 R 2146 CHIP RES 100 1 10W 5 1 107 101 124205101 R 2147 CHIP RES 22K 1 10W 5 1 107 223J J24205223 R 2148 CHIP RES 100K 1 10W 5 1 107 104J J24205104 R 2149 CHIP RES 100K 1 10N 5 RMC1 10T 104J J24205104 R 2150 CHIP RES 1 5 1 10W 5 RMC1 10T 152J 424205152 2151 CHIP RES 10K 1 104 5 107 103J J24205103 R 2153 CHIP RES 150 1 10W 5X RMCI 10T 151J J24205151 R 2154 CHIP RES 100 1 104 5 RMCI 10T 101 J24205101 R 2156 CHIP RES 100 1 10W 5 RMC1 107 101 24205101 R 2157 CHIP RES 1 8K 1 10 5 RMC1 10T 182J J24205182 R 2158 CARBON FILM RES 3 3K 1 68 5 RDI6TPJ332 J07225332 R 2159 CHIP RES 680 1 104 5 10 681J 24205681 R 2161 CHIP RES 680 1 10W 5X 10 681J J24205681 R 2163 CHIP RES 22K 1 10W 5 1 10 223J J24205223 R 2165 CHIP RES 390 1 104 5 RMC1 10T 391J J24205391 R 2166 CARBON FILM RES 6 8K 1 6N 5 RDI6TPJ682 107225682 R 2168 CHIP RES 22K 1 104 5 1 107 223 J24205223 R 2169 CHIP RES 100K 1 10W 5 RMC1 10T 104J J24205104 R 2170 CHIP RES 100K 1 10W 5 10 104J J24205104 R 2172 CH
76. 090223 62060004 52060004 62060004 62060004 62060004 62050007 G2060004 62060004 P0090624 P1090804 P0090625 P0090623 P1090812 5 10 option REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS P3 JP1036 WIRE ASSY 19206329 L 1001 COIL U 2001F FR9 5 L0021956 L 1002 M 1mH LALO3TA102K 11790119 L 1003 1mH LALOSTA102K 11190119 L 1004 3 RCR 875D 392K L1190383 L 1005 Int LALO3TA102K L1790119 L 1006 M RFC 3 9nH RCR 875D 392K 11190383 P 1001 WIRE ASSY T9317936 P 1002 WIRE ASSY 19317937 P 1003 WIRE ASSY T9317939 P 1004 WIRE ASSY 19317938 Q 1001 TRANSISTOR BNIA4P T 63050002 Q 1002 IC M5218AL 61091140 Q 1003 IC For Service Manuals Contact MC14584BCP 01090224 Q 1004 TRANSISTOR MAURITRON TECHNICAL SERVICES BA1A4P T 63050003 Q 1005 IC oder 17809 61090778 Q 1006 IC Tek 01844 351694 01844 352554 R3MO3A 61090837 Q 1007 TRANSISTOR Email enquiies maurtroncouk G3050003 Q 1008 TRANSISTOR 25C2002L 633200201 Q 1009 TRANSISTOR BNLA4P T 63050002 R 1001 METAL 885 100 11 5X ERG 1SJ101P 122309010 R 1002 CARBON FILM RES 82K 1 68 5 RD16TPJ823 J07225823 R 1003 CARBON FILM RES 22K 1 68 5X RDI6TPJ223 J07225223 R 1004 CARBON FILM RES 33K 1 6 5X RDI6TPJ333 J07225333 R 1005 CARBON FILM RES 22K 1 68 5X RDI16TPJ223 J07225223 R 1006 CARBON FILM RES 47K 1 68 5X RDIGTPJA73 J07225473 R 1007 CARBON FILM RES 47 1 68 5 RD16TPJ473 J0722547
77. 0W 5X RMCI 10T 222J J24205222 R 1311 CHIP RES 1 10W 5 10 102 424205102 1312 CHIP RES 1 5K 1 10W 5 RMC1 10T 152J J24205152 R 1313 CHIP RES 3 3K 1 10W 5 RMC1 10T 332 4284205332 R 1314 CHIP RES 3 3K 1 10W 5 1 10 332J 424205332 R 1315 CHIP RES 3 3K 1 104 5 RMC1 10T 332J 24205332 R 1316 CHIP RES 10K 1 108 5 1 107 103J J24205103 R 1317 CHIP RES 47K 1 10W 5 RMCI 10T 473J 124205475 R 1318 CHIP RES 10K 1 108 5 10 103J J24205103 R 1319 CHIP RES 4 TK 1 104 5 RMCI 10T 472J 124205472 R 1320 CHIP RES 100K 1 10W 5 10 104J J24205104 R 1321 CHIP RES 100K 1 10W 5 RMC1 10T 104J J24205104 R 1322 CHIP RES 100K 1 10W 5 RMC1 107T 104J J24205104 R 1323 CHIP RES 15K 1 104 5 107 153J 424205153 R 1324 CARBON FILM RES 5 6K 1 66 5 RDi6PJ562 J01225562 R 1325 CHIP RES 10K 1 108 5 10 103J J24205103 R 1326 CHIP RES 150 1 10W 5 RMCI 10T 151J J24205151 R 1327 CHIP RES 150 1 10W 5 RMCI 10T 151J J24205151 R 1328 CHIP RES 1 10W 5 RMC1 10T 102J J24205102 R 1329 CHIP RES 220K 1 10W 5 10 224J J24205224 amp 1330 CHIP RES 6 8K 1 10W 5 RMCI 10T 682J J24205682 amp 1331 CHIP RES 330 1 10W 5 1 10 7 331J J24205331 R 1332 CHIP RES 47K 1 10W 5X 10 473 J24205473 R 1333 CHIP RES 33 1 10W 5 RMC1 10T 3304 J24205330 R 1334 CHIP RES 220K 1 10W 5 RMC1 10T 224 J24205224 R 1335 CHIP RES 220K 1 10W 5 10 22
78. 100 1 108 5 1 107 101J J24205101 R 1057 CHIP RES 10K 1 10 5 RMC1 107 103J 124205103 R 1058 CHIP RES 220 1 10N 5 RMC1 10T 221J J24205221 R 1059 CHIP RES 100 1 10W 5 RMC1 10T 101J J24205101 R 1060 CHIP RES 100 1 108 5X RMC1 10T 101 J24205101 R 1061 CHIP RES 47K 1 10 5 RMCI 10T 473J J24205473 R 1062 CHIP RES 1 10 5X RMCI 10T 102 J24205102 R 1063 CARBON FILM RES 220 1 68 5X RDI6TPJ221 J07225221 R 1064 CHIP RES 100 1 104 5 RMCI 10T 101J J24205101 R 1065 CHIP RES 100 1 108 5 1 107 101J J24205101 R 1066 CHIP RES 100K 1 104 5X RMCI 10T 1040 J24205104 R 1067 CHIP RES 100K 1 108 5X RMC1 107 104J 124205104 R 1068 CHIP RES 100 1 108 5 1 107 1017 424205101 R 1070 CHIP RES 47K 1 10W 5 1 107 473J 124205413 R 1071 CHIP RES 100 1 108 5 RMCI 10T 101J J24205101 R 1072 CHIP RES 3 1 108 5 RMCI 10T 332 J24205332 R 1073 CHIP RES 10K 1 108 5X RMCI 10T 103J J24205103 R 1074 CHIP RES 100 1 108 5 RMCI 10T 101J J24205101 16 FT 840 Technical Supplement MAIN Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR amp 1075 CHIP RES 100 1 108 5 107 101J 424205101 R 1076 CHIP RES 100 1 10W 5 RMC1 10T 101 124205101 R 1077 CHIP RES 100 1 10W 5 107 101 124205101 R 1078 RES 3 1 10W 55 RMC1 10T 332J 24205332 R 1079 CARBON FILM RES 68 1 44 5 RDI4TPR680J 105245680 R 1080 CHIP RES 470 1 10W 5X 1
79. 1000013 FT 840 Technical Supplement LPF Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR JUMPER WIRE 0 8 5 0 Q6100003 JUMPER WIRE A 6 pcs 0 8 7 5 96100004 JUMPER WIRE A 7 pcs 0 8 10 0 96100005 WIRE BIND 3 pcs PLT 1M BK 1 S3000022 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 Fax 01844 352554 enquirias mauritron co uk 5H 5 FT 840 Technical Supplement Notes 5H 6 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon 9 4QY Tel 01844 351694 Fax 01844 352554 Email enquirles mauritron co uk FT 840 Technical Supplement Circuit Diagram HG KE M II MM CC C CE CMM IIT 0 697 5009 esor DV 135 PA UNI T 50 9 0057 8 0 047 8C 3395000 P sume 248 13 78 10021969 m BY 2563133 on o gt N PS int a N m coy 95001 8 NM C50Q1 _ 2902166 8 8 2 10 04 8025 0 047 F s gt a Va 1 5 1 287 N av Pa 0 59v Su 65010 65012 n ipei 0 0047 8 0 047 BC 23 7 X 15001 x 5 32 133 092155 15004 15003 8501 8 v NS 334 L1020666A 6 8 2W Sh 55 5 on u AM 96 gt n no TAN
80. 1403A T 5004 COIL 582 16 32 10022236 TH5001 THERMISTOR 5071000 09090011 TP5001 TP G MK1095 Q5000036 TP5002 TP G MK1095 95000036 VR5001 EVN DXAA03B13 J51783102 For Servica Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 enquiries mauritron co uk FT 640 Technical Supplement Notes For Service Manuals Contact MAURITRON TECHNICAL SERVICES B Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 51 8 FT 840 Technical Supplement VR A B C D Unit Circuit Diagram VR A UNIT NO 71X00 VR C UNIT NO 73350 F3394102 F3394104 JP730 lee ae SHIFT 3 SHIFT I CLARI 3 REF 4 VR7101 2 JP7102 19206312 10K8 10KB l GNC MIC AGNC 1 MICI CLAR 2 MICZ REF 227302 19206316 NOTE RESISTOR VALUES ARE IN RESISTOR VALUES ARE IN o eec LU SERERE Pe EE e 1 IVR B UNIT NO 72 2 VR D UNIT NO 74 1F 3394103 F3394105 VR7201 1 VR7401 tOKB 10KA SQL AGND av Set CLAR 13206809 42740 79206316 NOTE 33508008 x RESISTOR VALUE
81. 1694 Fax 01844 352554 Email enquiries mauritron co uk 5K 3 FT 840 Technical Supplement SW A B C D Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION SW C UNIT PCB with Components W 0 T9206317 Printed Circuit Board D 9301 DIODE D 9302 DIODE D 9303 DIODE D 9304 DIODE D 9305 DIODE D 9306 DIODE D 9307 DIODE D 9308 DIODE D 9309 DIODE D 9310 DIODE D 9311 DIODE JP9301 WIRE ASSY JP9302 WIRE ASSY S 9301 TACT SWITCH S 9302 TACT SWITCH S 9303 TACT SWITCH S 9304 TACT SWITCH S 9305 TACT SWITCH 5 9306 TACT SWITCH S 9307 TACT SWITCH 5 9308 TACT SWITCH S 9309 TACT SWITCH S 9310 TACT SWITCH S 9311 TACT SWITCH 5 9312 TACT SWITCH S 9313 TACT SWITCH S 9314 TACT SWITCH S 9315 TACT SWITCH S 9316 TACT SWITCH REF MFGR S DESIG For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk VALUE WV TOL 1552701 1552701 155270 1552707 1552707 1552707 15527077 1552707 1552707 155270 1552707 051302001 F3393101 G2060004 62060004 62090408 62060004 62060004 22060004 62060004 62060004 62060004 62060004 02060004 19206315 19206317 N5090047 N5090047 N5090047 N5090047 N5090047 090047 N5090047 N5090047 N5090047 N5090047 N5090047 N5090047 N5090047 N5090047 N5090047 N5090047 YAESU P N VERS ADDR SW D UNIT xxx PCB
82. 170805 C 2139 CHIP CAP 0 04747 50 GRM40F4732Z50PT K22171008 C 2140 CHIP CAP 0 047uF 50V GRM40F473250PT K22171008 C 2141 CHIP CAP 0 010 50 GRM40F103Z50PT 522171004 C 2142 CHIP 0 0luF 50 GRM40F103250PT K22171004 C 2143 CHIP CAP 50V CH GRM40CHOSOCSOPT K22170206 C 2144 CHIP CAP 15 50V CH 0 50 50 22170215 C 2145 CHIP CAP 0 012 50 GRM40F1032Z50PT K22171004 C 2146 CHIP CAP 68pF 50V CH GRM40CH680J50PT 22170231 C 2147 CHIP CAP 100pF 50V CH GRM40CH101J50PT 22170235 2148 CHIP CAP 68pF 50V CH GRM40CH680JSOPT 22170231 2149 CHIP 2pF 50V GRMAOCKOZ0CSOPT 22170203 C 2150 CERAMIC CAP 0 OluF 16V Y EPO50Y103N A K28129001 C 2151 CHIP CAP 0 0107 50 GRM40F103Z50PT K22171004 C 2152 CHIP CAP 18pF 50V UJ GRMA0UJISOJSOPT 22170317 C 2153 CHIP CAP 39pF 50V UJ GRM40UJ390J50PT K22170325 C 2155 CHIP CAP 0 0luF 50 GRM40F103Z50PT 22171004 C 2156 CHIP 100pF SOV CH GRMAOCHIOIJSOPT 22170239 C 2157 CHIP CAP 100pF 50V CH CRM40CH101J50PT 22170235 07 58 7 FT 840 Technical Supplement LOCAL Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR C 2158 CHIP CAP 2159 CHIP CAP 2160 AL ELECTRO CAP 2161 CHIP CAP 2162 CHIP CAP 2164 CERAMIC CAP 2165 CHIP CAP 2167 FILM CAP 2172 CHIP CAP 2173 CHIP CAP 2174 CHIP CAP 2176 CHIP CAP 2177 CHIP CAP 2178 CHIP CAP 2
83. 179 CHIP CAP 2180 CHIP CAP 2181 CHIP CAP 2182 CHIP CAP 2183 CHIP CAP 2187 CHIP CAP 2189 CHIP CAP 2190 AL ELECTRO CAP 2191 CHIP CAP 2192 AL ELECTRO CAP 2193 CHIP C C C C C C C C C C C C C C C C C C C C C C C C C 2194 CHIP CAP C 2195 CHIP CAP C C C C C C C C C C C C C C C C C C C C C C C C 2196 CHIP CAP 2197 CHIP CAP 2198 CHIP CAP 2199 CHIP CAP 2200 CHIP CAP 2201 CHIP CAP 2202 CHIP CAP 2203 CHIP CAP 2204 CERAMIC CAP 2205 CHIP CAP 2206 CHIP CAP 2207 CHIP CAP 2208 CHIP CAP 2209 CHIP CAP 2210 CHIP CAP 2211 CHIP CAP 2212 CHIP CAP 2213 CHIP CAP 2214 CHIP CAP 2215 CHIP CAP 2216 CHIP CAP 2217 CHIP CAP 2218 CHIP CAP 2219 CHIP CAP 2220 CHIP CAP 2221 CHIP CAP 58 8 8pF 100pF 100uF 0 OtuF 22pF 0 O01uF 0 OluF 0 33uF 0 OluF 0 OluF 0 OluF 0 OluF 27pF 27 pF 0 O1uF 0 OluF 0 OluF 0 OluF 8pF 18pF 0 OluF IQuF 0 OluF 4TuF 0 OluF 12pF 2 0 OOluF 10pF 0 OluF 0 OluF 0 OluF 5pF 0 047uF 0 00142 82pF 47pF 82pF 0 001uF 0 OluF 15pF 0 00141 0 O1uF 27pF 56pF 18pF 6pF 0 OluF 82pF 120pF 82pF CX C3 3 0 40 1080050 GRM40CH101JS0PT 16V101M6XTTR2 GRM40F 103Z50PT GRM40UJ220JS0PT 5 102 GRM40F 103250PT 50F2D334K GRM40F 103Z50PT
84. 1858 ean O612V 3 8 3 8 T 85 27 gt So 10 14 Bar 64923 1 28 8 12 T 8 18 21 gen 500 st 7 24728 GND 357 2 59021858 Br de p P4003 23 192063 9 oo i J Ll 18 Vis SOO A620 3 DCI2V 58 gt IS a 8 5 erse View of Component Side Obverse Unit H 1931 3309 J8 001 79205311 4040 9 047 ire 4i TXI 1 9 3 573 8 7 8 10 14 8 az 24728 P4003 T92063 9 TREAT For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tok 01844 351694 01844 352554 Email enquiries mauritron co uk Obverse View of Solder Side 5H 1 LPF Unit Parts List REF MFGR S DESIG VALUE WY TOL DESCRIPTION YAESU P N VERS ADDR LPP UNIT PCB with Components CA1026001 Printed Circuit Board F2948000A C 4001 MICA CAP 0 001uF 500 LCQ21102J5 K30275102 C 4002 CERAMIC CAP 68pF 500V SL DD09SL680J500 K00275680 C 4003 CERAMIC CAP 160pF 500V SL 1000751161500 K00276161 C 4004 MICA CAP 0 0012uF 500V 100211225 30215122 4005 680pF 500 LCQ18681J5 K30275681 C 4006 MICA CAP 560pF 500V LCQ18561J5 K30275561 C 4007 MICA CAP 820pF 500V 091882115 K30275821 C 4008 CERAMIC CAP 18pF 500V SL DDO6SL180
85. 2006 2508820 02021 Collector s Base Emitter A1563 RL 22008 2010 2011 2018 N eni MC14028BFL Q2020 Vdd Output X Input i Vas Input B TCAS81F C4 02025 Collector c0 H EE Lone 4 yos 5 uma k oa OB lt 2 i c pone By m Isi js P2035 asra BY 5 NITE 222 2 122632 exruUIZUTG POI adik ad gy mec s Ran d li POR lt lt 22 le PEER Il RU 2242202702 62 P ha td h XZIIII12212 Obverse View of Component Side Source T me Orain Gate u PC1037H 2SK210GR YG TC74HC74A 02027 Q2034 2040 2046 2052 02035 TC74HC08A 02060 LOCAL Unit Obverse View of Component Side For Service Manuals Contact Source Source MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Pin 14 Email enquiries mauritron co uk 29 Pin Drain Gate Pin 1 Orain 2SK210GR YG TC74HC74AF 25 302 TY Q2034 2040 2046 2052 Q2035 Q2038 TC74HC08AF 02060 58 3 LOCAL Unit Pin 7 Pin 1 Source CX 7925B 25 20 02048 020
86. 2170210 C 2114 CHIP CAP 8pF 50V CH GRM40CHO80DSOPT 22170209 C 2115 CHIP CAP 3pF 50V CJ GRM4O0CJO3OCSOPT 22170204 C 2116 CHIP CAP 12pF 50V CH GRM40CHI120J50PT 22170213 C 2117 CHIP CAP 2TpF 50V GRM40CH270J50PT 22170221 C 2118 CHIP CAP 22pF 50V GRMAO0CH220J50PT 22170219 2119 CHIP CAP 22pF 50V CH GRM40CH220J50PT K22170219 2120 CHIP 24p 50V CH GRM40CH240J50PT 22170220 C 2121 CHIP CAP 8pF 50V CH GRM40CHO80D50PT 22170209 C 2122 CHIP CAP 100pF 50V CH GRM4OCHIO1J50PT K22170235 C 2123 CHIP CAP 100pF 50V CH GRMAOCHIO1JSOPT 22170235 C 2124 CHIP CAP 0 001uF 50V GRM40B102M5OPT K22170805 C 2125 CHIP CAP 6pF 50V CH GRM4OCHOGODSOPT 22170207 C 2126 CHIP CAP 0 0luF 50 F GRM40F103Z50PT K22171004 C 2121 CHIP CAP 0 0luF 50 GRM40F103250PT K22171004 C 2128 CHIP CAP 100pF 50V CH GRM40CHLO1J50PT 22170235 C 2129 CHIP CAP 100pF 50V CH GRMAOCHIO1JSO0PT K22170235 2130 CHIP CAP 0 0472 50 GRM40F473Z50PT K22171008 C 2131 CHIP CAP 50V GRM40CKO10C5OPT 22170202 C 2132 CHIP 100pF 50V CH GRM40CH101J50PT 22170235 C 2133 CHIP CAP 100 50V CH GRM40CH101J50PT 22170235 C 2134 CHIP CAP 0 047uF 50V GRM40F473Z50PT K22171008 2135 CERAMIC CAP 0 00luF 50V UPOSOBIO2K A B K28179001 C 2136 CHIP CAP SOVY GRM40OCKO10C5OPT 22170202 2137 22 50V Ud GRM40UJ220J50PT 22170319 C 2138 CHIP CAP 0 001uF 50V GRM40B102M50PT K22
87. 238 CHIP RES 1239 CHIP RES 1240 CHIP RES 1242 CHIP RES 1243 CHIP RES 1244 CHIP RES 1245 CHIP RES 1246 CHIP RES 1247 CHIP RES 1248 CHIP RES 1249 CHIP RES 1250 CHIP RES 1251 CHIP RES 1252 CHIP RES 1253 CHIP RES 1254 CHIP RES 1255 CHIP RES 1256 CHIP RES 1257 CHIP RES 1258 CHIP RES 1259 CHIP RES 1260 CHIP RES 1261 CHIP RES 1262 CHIP RES 1263 CHIP RES 1264 CHIP RES 1265 CHIP RES 1266 CHIP RES 1267 CHIP RES 1268 CHIP RES 1269 CHIP RES 1270 CHIP RES 1271 CHIP RES 1272 CHIP RES 1274 CHIP RES 1275 CHIP RES 1276 CHIP RES 1277 CHIP RES 1278 CARBON FILM RES 1279 CARBON FILM RES 1280 CHIP RES 1281 CHIP RES 1282 CHIP RES 1283 CARBON FILM RES 1284 CHIP RES 1285 CHIP RES 1286 CHIP RES 1287 CHIP RES 1288 CHIP RES 1289 CHIP RES MFGR S DESIG 1235 METAL FILM RES 1236 METAL FILM RES VALUE 1 49 1 44 1 10W 1 10W 1 10W 1 104 1 10W 1 10W 1 104 1 10W 1 10 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10H 1 10W 1 104 1 104 1 10N 1 10W 1 10W 1 104 1 10W 1 10W 1 10W 1 104 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 6W 1 6W 1 10W 1 10W 1 10W 1 6 1 10W 1 10W 1 10N 1 10W 1 10W 1 10W TOL 1 1 5 54 54 54 54 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
88. 23a 1047 AM MODE 3v mase 23 00v MODE 02v For Service 5 Contact MAURITRON TECHNICAL SERVICES 8 Cherry Trae Chinnor Oxon OX9 4QY 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 5A 1 Parts Lay out For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon 9 4QY Tel 01844 351694 Fax 01 844 352554 Email enquiries mauritron co uk Gate Source Drain 2SK160 K6 01001 25 1577 P1 01008 1012 Coliector Base Emitter 25 2812 L6 Q1003 1005 1013 1014 1017 1018 1019 1025 1027 1028 1042 1057 1058 1064 1065 28C2714Y JY Q1021 1022 Gate 2 Gate 1 Orain Source 3SK131 V12 Q1007 1008 1009 1010 1023 1055 NS Emitter Coilector Base 25 2053 01016 4 Base Emitter 25 4047 ZY Q1002 1031 1032 1037 1038 1044 1045 1046 1047 1048 1052 1053 1054 1059 1061 1063 1066 1067 1069 Pin s 2 65 1 M5223FP 01004 1035 1041 M5218AFP Q1015 1040 1043 1049 Drein Gate 25 302 TY 01011 1020 1029 1056 Pin 18 Pin pin 062783 1037 TC4W66F 01024 01026 1050 01030 840 Technical Supplement Downloaded Amateur Radio Directory www hamdirectory info Collector Bass
89. 3 ww GRM40CH470J50PT 16V100MAXTTRZ CRM40F103250PT GRMAOF103250PT 10V221M6X11TR5 GRM40F103250PT GRMAOCK0ZOCSOPT GRM40CK020C50PT GRM40B473M50PT GRM40F103Z50PT 50V010MA4X7TR2 GRM40F 103Z50PT GRM40F 103250 GRM40F103250PT 50V010M4X7TR2 GRM40CH221J50PT 50V010M4X7TR2 50V010M4X7TR2 UAT LOX104K L45AE 35V4R7M4X7TR2 50V010M4X7TR2 GRM40B102M50PT 16V100M4X7TR2 50V010M4X7TR2 GRM40F 103Z50PT GRM40F 103250 GRM40F103250PT GRM40F473Z50PT GRM40B102M50PT GRMAOF 103250 GRM40F 103Z50PT GRM40F 103250 GRM40F 103Z50PT GRM40F 103250PT GRM40CH470J50PT GRM40CH470J50PT GRM40F103250PT 16 220 5 2 35V4R7M4X7TR2 GRM40F 103Z50PT TESVA1E474M1 8R 50VR47M4X7TR2 16V100M4X7TR2 50V010MAX7TR2 GRM40B682M50PT GRM40B104M25PT 50V010M4X7TR2 16V220M5XTTRZ GRM40B332M50PT 345V4R7M4X7TR2 GRM40F103250PT GRM40F473250PT 16V101M6X7TR2 K22170227 K46120004 K22171004 K22171004 K46100005 K22171004 K22170203 K22170203 K22170823 K22171004 K46170030 K22171004 K22171004 K22171004 K46170030 K22170243 K46170030 K46170030 K19149025 K46160004 K46170030 K22170805 K46120004 K46170030 K22171004 K22171004 K22171004 K22171008 K22170805 K22171004 K22171004 K22171004 K22171004 K22171004 K22170227 K22170227 K22171004 K46120005 K46160004 K22171004 18140009 46170029 K46120004 K46170030 K22170815 K22140811 K46170030 K46120005 K22170811 K46160004 K22171004 K22171008 K46120007 FT 840 Technical Sup
90. 3 R 1008 CARBON FILM RES 1M 1 68 5X RDI6TPJ105 J07225105 R 1009 CARBON FILM RES 10K 1 68 5 RDIGTPJIO3 J07225103 R 1010 CARBON FILM RES IK 1 64 5 RDIGTPJIO2 J07225102 R 1011 CARBON FILM RES 10K 1 68 5X 0167 103 J07225103 R 1012 CARBON FILM RES 5 6 1 68 5X RDIGTPJ5RG J07225569 R 1013 METAL FILM RES 1 430 1 48 1 MRS25F 1 43K J20249102 1014 METAL FILM RES 8 87K 1 44 1 MRS25F 8 87K J20249046 1015 CARBON FILM RES 10K 1 68 5X 0167 103 J07225103 R 1016 CARBON FILM RES 2 2M 1 68 5X RD16TPJ225 07225225 R 1017 CARBON FILM RES 10K 1 68 5 167 103 J07225103 1018 CARBON FILM RES 1K 1 68 5 RDIGTPJ102 J07225102 R 1019 CARBON FILM RES 15 1 44 5X RDI4TJI50 J01245150 R 1020 CARBON FILM RES 10K 1 6N 5X RDIBTPJ103 J07225103 RL1001 RELAY DC12V 462013 M1190045 RL1002 RELAY DC12V 462013 M1190045 RL1003 RELAY DC12V 462013 M1190045 RL1004 RELAY DC12V 462013 M1190045 1001 SLIDE SWITCH 55521200 16090023 7 6 840 Technical Supplement 10 option REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS 1001 TRIMMER CAP BCVIZW20x32 K91000013 TP1001 TP G MK1095 95000036 VR1001 50K EVN DXAAQ3B54 J51783503 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 7 7 FT 840 Technical Supplement Notes 7E 8 FT 840 Technieal Supplement Tuner
91. 4 5 ALC Meter Sensitivity IF interstage Alignment VR1066 eet VR1008 VR1013 Interstage Alignment Ti 608 Ti 007 T1006 SSB Modulator Balance Meter Z AE N pem or 01053 1 P 9 01050 01094 0 EMEN S es C1214 01120 ol FR 4 C ymw s VR10141 3 11007 5 5 a THIOOS LE onis 01110 f 5 g ERI lt 501083 601083 7 01078 701077 4 01085 l 5 Lr 41025 S040 4 _ D 5 1002 amp 36 1107 100 vi E T 5 e s P T1003 T1004 do 5 8 T1001 11002 2 i ab 4 01016 Y Vly T1010 71011 71012 T1001 T1002 T1003 T1004 T100 i IF Interstage Alignment IF Interstage Alignmen Main Unit Alignment Diagram 1014 VR1013 ALC Meter Sensitivity Meter Calibration ignment VR1008 VR1013 11006 558 Modulator Balance ALC Meter Zero Set 01050 EN JE 5 8 21067 _ 017 kd 2 5 01086 2 8 F 01027 202 43020 IMP oq 5 dH 8 2528 21025 E 5 d 5 ci xe 2 of 001 m At 5 E a rio pu TON 18 J1004 01058 7 m T1017 T1018
92. 4 J24205224 R 1336 CHIP RES 47 1 10W 5 10 470J J24205470 1 1001 RELAY DC12V 804013 1190090 5 1001 SLIDE SWITCH 55521200 090033 T 1001 COIL 47 055M 10022224 21 FT 840 Technical Supplement MAIN Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR 53 33 1002 COIL 1003 COIL 1004 COIL 1005 COIL 1006 COIL 1007 COIL 1008 COIL 1009 COIL 1010 COIL 1011 COIL 1012 COIL 1013 COIL 1014 1015 1016 COIL 1017 COIL 1018 COIL 1019 COIL 1020 COIL 1021 COIL 1022 COIL 1023 COIL TH1001 THERMISTOR TH1002 THERMISTOR 1003 THERMISTOR TH1004 THERMISTOR TH1005 THERMISTOR TP1001 TERMINAL 1002 TERMINAL VR1002 POT VR1003 POT VR1004 POT VR1005 POT VR1006 POT VR1007 POT VR1008 POT VR1010 POT 1011 POT VR1012 POT VR1013 POT VR VR VR 1014 POT 1015 POT 1016 POT VR1017 POT VR1019 POT VR 1020 POT XF1001 XTAL XF 5A 22 1002 XTAL CARD SPACER For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OXS 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk 1KB 470B 4 TKB 1 1 4 10KB 10KB 10KB 10K 10KB 10KB 500K 10KB 10KB 4 7 8 20M R12 40434 8 20M 812 4
93. 41005 1261 CHIP CAP 0 25V GRM40F104Z25PT K22141005 C 1262 CHIP CAP 0 1 25V 40 104225 22141005 1263 0 1 25V F KGRM40F104225PT K22141005 C 1264 CHIP CAP 0 luF 25V GRM40F104225PT K22141005 C 1265 CHIP CAP 4pF 50V CH GRM40CHO40CSOPT K22170205 C 1266 CHIP CAP 4pF 50V CH GRM4OCHO40C50PT 22170205 C 1267 CHIP CAP 0 0444 50V GRM40F473Z50PT K22171008 5A 9 FT 840 Technical Supplement MAIN Unit REF MFGR S DESIG VALUE W TOL DESCRIPTION YAESU P N VERS ADDR C 1268 CHIP CAP 8pF 50V GRM40CH080D50PT K22170209 1269 CHIP CAP 0 0474 50V F GRM40F473250PT K22171008 C 1270 CHIP CAP 0 OluF 50V B GRM40B103M50PT K22170817 C 1271 CERAMIC CAP 0 047uF 50V F UP050F4732 A B K28179002 C 1272 CHIP CAP 0 0472 50V F GRM40F473250PT K22171008 C 1213 AL ELECTRO CAP 104 16V 16V100M4X7TR2 K46120004 C 1274 CHIP CAP 0 0474 50V GRM40B473M50PT K22170823 1275 AL ELECTRO luF 50V 50V010M4X7TRZ K46170030 C 1276 CHIP CAP 10 50V GRM40CH100D50PT 22170211 1277 CHIP 15pF 50V CH GRM40CH150J50PT K22170215 C 1278 CHIP CAP 0 OluF 50V F GRM40F 103250PT K22171004 C 1279 CHIP CAP 0 luF 25V B GRM40B104M25PT K22140811 C 1280 CHIP CAP 0 OluF 50V F GRM40F 103Z50PT K22171004 C 1281 CERAMIC CAP 0 047uF 50V F UPO50F473Z A B K28179002 C 1282 CHIP CAP 0 OluF 50V F 40 103250 822171004 1283 AL ELECTRO 4 TuF 35V 35VARTMAXTTRZ K46160004
94. 424205471 R 1106 RES 4 TK 1 10N 5 RMCI 10T 472J J24205472 R 1107 CARBON FILM RES 4 7 1 68 5X RD16TPJ4R7 07225479 R 1108 RES 4 TK 1 10W 5 10 7 472J J24205472 R 1109 CHIP RES 1 108 5 10 102 04205102 R 1110 CARBON FILM RES 560 1 6N 5 RDI6TPJ561 J07225561 R 1111 CARBON FILM RES 390 1 68 5 RDI6TPI391 07225391 R 1112 BES 180 1 24 5 RMC1 2 181JTE 424275181 R 1113 CHIP RES 68K 1 108 5 RMC1 10T 683J J24205683 R 1114 CHIP RES 22K 1 10W 5 RMC1 10T 2233 124205223 R 1115 CHIP RES 4 TK 1 106 5 1 10 472J J24205472 R 1116 CHIP RES 4 TK 1 108 5 RMCI 10T 472 424205472 R 1117 CHIP RES IK 1 10W 5 RMCI 10T 102J J24205102 R 1118 CHIP RES 33 1 104 5 RMCI 10T 330J J24205330 R 1119 CHIP RES 33K 1 10W 5 1 10 333J J24205333 R 1120 CHIP RES 100 1 10W 5 1 107 104 124205104 R 1121 CHIP RES 41 1 10W 5 10 4704 424205470 R 1122 RES 100 1 10 5 RMC1 10T 101 24205101 R 1123 CHIP RES 120 1 104 5 RMCI 10T 121J J24205121 R 1124 CHIP RES 22K 1 108 5 RMCI 10T 223J 424205223 R 1125 CHIP RES 10K 1 10W 5 RMC1 10T 103 J24205103 R 1126 CHIP RES 1 104 5 RMCI 10T 102 J24205102 R 1127 CHIP RES 2 2K 1 104 5 1 107 222J J24205222 5A 17 FT 840 Technical Supplement MAIN Unit REF MFGR S DESIG DU CU ZJ CO EQ DO CO ZU ZG CO CU
95. 426 Obverse View of ChipSide 56 1 DISPLAY Unit Parts List REF MFGR S DESIG VALUE W TOL DESCRIPTION YAESU P N VERS ADDR DISPLAY UNIT PCB with Components CA1066001 Printed Circuit Board F3390101 C 3001 TANTALUM CHIP CAP 10uF 6 TEMSVB20J106M 8R 78080019 C 3002 CHIP CAP 680pF 50V B GRM40B681M50PT K22170803 C 3003 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 053001 FTD 11768AAP 66090098 Q 3001 IC 107582 61090830 R 3001 CHIP BES 100K 1 10W 5 10 104 J24205104 R 3002 CHIP RES 21K 1 104 5 RMCI 10T 273J 124205273 3003 CHIP RES ATK 1 10W 5 RMCL LOT 4730 J24205473 R 3004 CHIP RES 100K 1 10W 5 RMC1 10T 104J J24205104 R 3005 CHIP RES 100K 1 104 5 RMC1 10T 104J J24205104 TP3001 TP M PS 1145 Q5000052 TP3002 TP M PS 1145 Q5000052 For Service Manuals Contact MAURITRON TECHNICAL SERVICES B Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 5G 3 840 Technical Supplement Notes 5G 4 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 840 Technical Supplement Circuit Diagram LPF PF UNIT 2908000 5007 10021407 12006 0021408 GR mMm 11
96. 44 50V GRM40F473250PT K22171008 C 1134 CHIP CAP 0 0015 50V GRM40B152M50PT K22170807 C 1135 AL ELECTRO CAP 0 4TuF 50V o0VRATMAXTTR2 K46170029 C 1136 CERAMIC CAP 0 0015 25V X UATO4X152K LO5AE 19149003 C 1137 CHIP CAP 0 0142 50V GRM40F103Z50PT K22171004 C 1138 CHIP CAP 0 01uF 50V GRM40F103250PT K22171004 1139 CHIP CAP 82pF 50V CH GRM40CH820J50PT 22170233 C 1140 AL ELECTRO CAP 4 TuF 35V 35V4RTMAXTTR2 K46160004 C 1141 AL ELECTRO CAP 4 35V 35V4RTMAXTTR2 K46160004 C 1142 CERAMIC CAP 0 0068uF 16V X 050 682 K28129006 C 1143 CERAMIC CAP 0 20V X UATIOX1O4K L45AE 19149025 C 1144 CHIP CAP 33pF 50V GRM40CHS30J50PT 22170223 1145 CHIP CAP 33pF 50 CH GRM40CH330J50PT 22170223 1146 AL ELECTRO CAP 4 TuF 35V 35V4R7TMAXTTR2 K46160004 C 1147 AL ELECTRO CAP 10uF 16V 16V100M4X7TR2 K46120004 C 1148 AL ELECTRO CAP 4 TuF 35V 35VARTMAX7TR2 K46160004 1149 CHIP CAP 0 00142 50V GRM40B102M50PT K22170805 1151 CHIP CAP 0 01uF 50 GRM40F103250PT K22171004 C 1152 CHIP CAP 0 0luF 50 GRM40F103250PT K22171004 C 1153 CHIP CAP 22pF 50V CH GRM40CH220J50PT K22170219 1154 CHIP CAP 22pF 50V GRM40CH220J50PT K22170219 C 1155 CHIP CAP 0 001uF 50V 40 102 50 K22170805 C 1156 CHIP CAP 47pF 50V CH GRM40CH470J50PT 22170227 C 1157 CHIP CAP 0 luF 25V GRM40B104M25PT K22140811 5A 7 840 Technical Supplement MAIN Unit REF MFGR S DESI
97. 46120004 C 1233 CHIP CAP 0 047uF 50 GRM40F473Z50PT K22171008 C 1236 CHIP 0 012 50 F GRM40F103Z50PT K22171004 C 1237 CHIP CAP 0 01 50V GRM40F103Z50PT K22171004 1238 CHIP 0 0 1uF 50V F GRM40F103Z50PT K22171004 C 1239 CHIP CAP 0 012 50 GRMA40F103250PT K22171004 C 1240 CHIP CAP 0 01uF 50V F GRM40F103Z50PT K22171004 C 1241 AL ELECTRO CAP 50 50V010M4X7TR2 K46170030 C 1242 CHIP CAP 0 01uF 50 GRM40F103Z50PT K22171004 C 1243 CHIP CAP 0 luF 25V F GRM40F 104225PT K22141005 C 1244 CHIP CAP 680pF 50V KGRM40B681M50PT K22170803 C 1245 CHIP CAP 0 04TuF 50 KGRM40F473250PT K22171008 C 1246 CHIP CAP 0 04742 50 GRWM40F473250PT K22171008 C 1247 CHIP CAP 0 luF 25V GRnM40F104Z25PT K22141005 C 1248 AL ELECTRO CAP 4TuF 16V 16 470 6 7 2 46120006 1249 0 25V GRM40F104Z25PT K22141005 C 1250 AL ELECTRO 10uF 16V 16V100M4X7TR2 K46120004 C 1251 AL ELECTRO 104 16V 16V100M4X7TR2 K46120004 C 1252 CHIP CAP 0 047uF 50V GRM40F473Z50PT 22171008 1254 AL ELECTRO 104 16V 16V100M4X7TRZ K46120004 C 1255 AL ELECTRO CAP 50V 50V010M4X7TR2 K46170030 C 1256 AL ELECTRO CAP 10uF 16V 16V100M4X7TR2 K46120004 C 1257 AL ELECTRO luF 50V 50V010M4X7TR2 K46170030 C 1258 CHIP CAP 0 25V GRM40F104Z25PT K22141005 C 1259 CHIP CAP 0 25V F GRM40F104Z25PT K22141005 1260 CHIP CAP 0 luF 25V GRM40F104Z25PT K221
98. 4v b N a Boe 5 2g 85 55 e Qa C a O 3 OQ a 5001 49 21391 05004 15003 A wt 334 LIO20586A 85 we H NM 82 55 xh 85008 2 T PC7808H 61998 zi 2 nz O 2508820 ON i Ov 135v 272 gt 339v S o 05 5 003 05004 2 S X 11 51 11 81 95007 n 28512830 13 52 9 16 Y C5036 0 01 05006 BA1A4M TER VALUES ARE IN 0 1 5W ITOR VALUES ARE IN SOV VALUES ARE IN H 3 OTHERWISE NOTED 13 55 12 70 C5047 7 FAN ON 024v FAN OFF 0 76 FAN ON FAN OFF asoto 95011 8201921 25 20011 85029 13 57v TH5001 6071090 2 84v 03 13 FAN ON V 45007 FAN Orr P0090621 5015 0 0068 5007 X8 25 3240 21 CS016 0 0068 500 XB 10 o 7500 500 ul p 95005 VS 200 2503240 21 0 65014 3 3 IW 85017 5018 5001 39 3w 0 047 B TP G 5015 3 3 14 1 57 5092 13 52 TP 6 65043 2 0 047 88 05005 15583 gt N e g j a 13 57 9 10v 5 Q5010 2 5 6 52184 SSS k i NS 5016 5017 5012 3 3 14 39 3w 0 047 1357 1353v 15
99. 5 DESCRIPTION MRS25F 1 43 MRS25F 8 87K RMC1 10T 104 RMC1 10T 103J RMC1 10T 333 RMC1 10T 103J RMC1 10T 103J RMC1 10T 222J RMC1 10T 103J MC1 10T 333J 1 10 153J MC1 10T 101J MC1 10T 101J MC1 10T 101J 1 10 222 MC1 10T 123 1 10 102 1 10 224 1 10 472 RMC1 10T 472J RMC1 10T 1020 1 107 221J RMC1 10T 101J RMC1 10T 470J RMC1 10T 151J RMC1 10T 221J RMC1 10T 101J 107 121J RMC1 10T 121J 1 107 102J RMC1 10T 101J RMC1 10T 471 RMC1 10T 471J 1 10 473J RMC1 10T 473 RMCI 10T 473J RMCI 10T 473J RMC1 10T 682J RMC1 10T 103J RMC1 10T 103J RMC1 10T 103J RD16TPJ271 RD167PJ381 RMC1 10T 270J RMC1 10T 473J RMC1 10T 470J RD16TPJ124 RMC1 10T 153J 1 10 222J RMC1 10T 151J RMC1 10T 101J 1 107 103J RMC1 10T 820 YAESU P N VERS ADDR J20249102 J20249046 J24205104 J24205103 J24205333 J24205103 J24205103 J24205222 J24205103 J24205333 J24205153 J24205101 J24205101 J24205101 J24205222 J24205123 J24205102 J24205224 424205472 4124205472 424205102 424205221 424205101 124205470 4 J24205151 J24205221 J24205101 J24205121 J24205121 J24205102 J24205101 For Service Manuals Contact MAURITRON TECHNICAL SERVICES J24205471 J24205471 8 Cherry Tree Rd Chinnor Oxon 9 4QY J24205473 Tel 01844 351694 01844 352554 24205473 enquiies mauritron co uk J2420
100. 500V SL DDO6SL120J500 K00275120 C 4035 CERAMIC CAP 91pF 500V SL pDD09SL910J500 K00275910 C 4036 CERAMIC CAP 220pF 50V SL DD1078L221J50 K00175221 C 4037 CERAMIC CAP 220pF 50V 80 DD1078L221J50 K00175221 C 4038 CERAMIC CAP 10 5007 SL 0006511000500 K00275100 C 4039 CERAMIC CAP 0 0474 50 F DD110F473250 K13179009 C 4040 CERAMIC CAP 0 047uF 50V F DD110F473250 K13179009 C 4041 CERAMIC CAP 0 047uF 50 F DD110F473250 K13179009 4042 CERAMIC CAP 0 047uF 50V F DD110F473250 K13179009 4043 CERAMIC CAP 0 047uF 50V F 01107473250 K13179009 C 4044 CERAMIC CAP 0 047uF 50V F DD110F473250 13179009 4045 CERAMIC 0 047 2 50 F DD110F473250 K13179009 C 4046 CERAMIC CAP 0 04TuF 50 F DD110F 473250 K13179009 C 4047 CERAMIC CAP 0 047uF 50V F DD110F473250 K13179009 5H 3 FT 840 Technical Supplement Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR C 4048 CERAMIC CAP C 4049 CERAMIC CAP C 4050 CERAMIC CAP C 4051 CERAMIC CAP C 4052 CERAMIC CAP C 4053 CERAMIC CAP D 4001 DIODE D 4002 DIODE D 4003 DIODE D 4004 SURGE ABSORBER JP4001 WIRE ASSY 0 04TuF 50 F 0 0472 50V F 0 0470 50V F 0 04742 50V F 0 047uF 50V F 0 0470 50 F L 4001 COIL L 4002 COIL L 4003 COIL L 4004 COLL TECHNICA SERVICES L 4005 COIL sey Tee ino L 4006 COIL Tel 01844 351694 01844 352554 L 4007 COIL enquiries mauritron co uk L 4008 COIL L 4009 COIL L 4010
101. 50V GRM40CH680J50PT K22170231 C 1042 CHIP CAP 4TOpF 50V GRM40CH471J50PT K22170251 C 1043 CHIP CAP 0 OluF 50V F GRM40F 103Z50PT K22171004 C 1044 CHIP CAP 0 OluF 50V F GRM40F103250PT K22171004 C 1045 CHIP CAP 0 OluF 50V F GRM40F 103250 22171004 C 1046 CHIP 150 50V CH GRM40CH151J50PT K22170239 C 1047 CHIP CAP 150pF 50V KGRM40CH151J50PT K22170239 C 1048 CHIP CAP 150pF 50V CH GRM40CH151J50PT K22170239 C 1050 AL ELECTRO CAP 1041 16V 16 100 4 7782 K46120004 5 840 Technical Supplement MAIN Unit REF MFGR S DESIG VALUE TOL DESCRIPTION YAESU P N VERS ADDR C G co 2 OO O O c gt 5A 6 1051 CHIP CAP 1052 CHIP CAP 1053 CHIP CAP 1054 CHIP CAP 1055 CHIP CAP 1056 CHIP CAP 1057 CHIP CAP 1058 CHIP CAP 1059 CHIP CAP 1060 CHIP CAP 1061 CHIP CAP 1062 CHIP CAP 1063 CHIP CAP 1064 CHIP CAP 1065 CHIP CAP 1066 CHIP CAP 1067 CERAMIC CAP 1068 CERAMIC CAP 1069 CHIP CAP 1070 CHIP CAP 1071 CHIP CAP 1072 CHIP CAP 1073 CHIP CAP 1074 CHIP CAP 1075 CHIP CAP 1076 CHIP CAP 1077 CHIP CAP 1078 CHIP CAP 1079 CHIP CAP 1080 CHIP CAP 1081 CHIP CAP 1082 CHIP CAP 1083 CHIP CAP 1084 CHIP CAP 1085 CHIP CAP 1086 CHIP CAP 1087 A
102. 5473 J24205473 J24205682 J24205103 J24205103 424205103 407225271 107225391 24205270 24205473 24205470 07225124 424205153 424205242 424205151 424205101 424205103 04205820 840 Technical Supplement MAIN Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR R 1290 CHIP RES 82 1 104 5 RMC1 10T 8204 J24205820 R 1291 CHIP RES 1 5K 1 10 5 10 152 24205152 R 1292 CHIP RES 1 108 5 RMC1 10T 102 424205102 1293 CARBON FILM RES 330K 1 64 5 RD16TPJ334 07225334 R 1294 CHIP RES 100 1 10 5 10 101J J24205101 R 1295 CHIP RES 56 1 108 5 RMCI 10T 560J 24205560 R 1296 CARBON FILM RES 12 1 68 5 RD16TPJ120 J07225120 R 1297 CHIP RES 10K 1 104 5 RMCI 10T 103J J24205103 R 1298 CHIP RES 56 1 10W 5 RMC1 10T 560J J24205560 R 1299 CHIP RES 330 1 10W 5 RMC1 10T 331J J24205331 R 1300 CHIP RES 56 1 10W 5 10 560 424205560 R 1301 CHIP RES 1 104 5X 10 102 J24205102 R 1302 CHIP RES 2 2K 1 10W 5 RMCI 10T 222 J24205222 R 1303 CHIP RES 10K 1 104 5 RMC1 10T 103J 424205103 R 1304 CHIP RES 1K 1 10W 5 10 102J J24205102 R 1305 CHIP RES 10K 1 10W 5 RMC1 10T 103J J24205103 R 1306 CHIP RES 470 1 10W 5 RMC1 10T 471 J24205471 R 1307 CARBON FILM RES 10 1 64 5 RD16TPJ100 107225100 R 1308 RES 10K 1 10W 5 RMC1 10T 103J J24205103 R 1309 CHIP RES 100K 1 10W 5 RMCI 10T 104J J24205104 R 1310 CHIP RES 2 2K 1 1
103. 8 5X RMCI 10T 103 24205103 R 2006 CHIP RES 330 1 10W 5X RMCI 10T 331 24205331 R 2007 CHIP RES 0 1 109 5X 1 107 O00 24205000 R 2008 RES 1 10 5 RMCI 10T 1024 24205102 R 2009 CHIP RES 10K 1 10W 5X 1 107 1033 24205103 R 2010 CHIP RES 470 1 109 5X RMCI 10T 471J J24205471 R 2011 CHIP RES 10K 1 10 5X RMCI 10T 1033 24205103 R 2012 CHIP RES 10K 1 109 5X RMCI 10T 103 J24205103 R 2013 CHIP RES 470 5 RMCI l0T 471 J24205471 R 2014 CHIP RES 470 1 10W 5 RMC1 10T 471 24205471 R 2015 CARBON RES 470 1 64 5X RDI6TPJATI J07225471 R 2016 CHIP RES 3 3K 1 104 5X RMCI 10T 3322 J24205332 R 2017 CHIP RES 100 1 10W 5 RMCI 10T 101 24205101 R 2018 CHIP RES 82K 1 104 5X 107 823 24205823 R 2019 CHIP RES 82K 1 10W 5X RMCI 10T 8233 24205823 R 2021 CARBON FILM RES 10K 1 6W 5X RDIGTPJl03 07225103 R 2023 CHIP RES 68K 1 10 5X RMCI 10T 683 74205683 R 2024 CARBON FILM RES 10K 1 64 5X RDIGTPJl03 07225103 R 2025 CARBON RES 470 1 6 5 RDIGTPJ4TI J07225471 58 12 FT 840 Technical Supplement REF MFGR S DESIG TOL DESCRIPTION LOCAL Unit YAESU P N VERS ADDR R 2026 CARBON FILM RES R 2027 CHIP RES R 2028 CARBON FILM RES R 2029 CARBON FILM RES R 2030 CHIP RES R 2031 CHIP RES amp 2032 CHIP RES R 2033 CHIP RES R 2034 CHIP RES R 2035 CARBON FILM RES R 2036 CHIP RES amp 2037 CHIP RES
104. 8AFP 600C 2SC2053 2SC2812L6 TA 25 28121 6 25 28121 6 2SK302Y TE85R 29027 14YTE8SR 25027 14YTE8SR 3SK131 T2B V12 UPC1037H 250281216 TC4W66F TE12L 2SC2812L6 TA 25028121 6 2SK302Y TE85R TD62783F 1 2SC4047 TA 2SC4047 TA 25 1563 11790049 11790164 11790164 11790072 11790164 11790072 11790038 11190072 11790039 11190383 11190392 11190383 11790164 1790072 11730072 1790072 11190133 11190133 11790070 G3801607F 03340477 03328127 61090990 63328 127 03815777 048013178 048013178 048013178 04801317 038030271 03815777 03328127 033281278 61091607 63320530 63328127 03328127 63328127 63803027Y 63327147 63327147 64801317B 61090101 03328 127 61091493 63328127 G3328127F G3803027Y G1091620 03340477 03340477 03115638 ie ter faeces I I I I I 1 I I CO CO DO DO CO CO CO I CO C9 DS P P9 EE OP t tapu ET ry ta FT 840 Technical Supplement MAIN Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR Q 1034 IC TD62783F 01091620 b 3 Q 1035 IC M5223FP 72A 61090990 9 2 9 1036 1 UPD4028BG T2 G1091137 b 3 Q 1037 TRANSISTOR 2SC4047 TA G3340477 2 Q 1038 TRANSISTOR 2SC4047 TA G3340477 3 Q 1039 TRANSISTOR 2SA1563 TB 63115638 a 3 Q 1040 IC M5218AFP 600C G1091607 a 1 Q 1041 IC M5223
105. 90624 P0090623 P0090625 P0090622 P0090624 P0090631 P0090630 P1090350 P0090621 P0090624 P0090622 P0090623 P0090622 P0090624 P1090255 P1090255 P1090255 P0090621 P0090523 P1090804 P1090807 L1790070 L1790070 L1790038 L1790039 L1790049 L1790048 L1790047 L1790047 L1790048 L1790072 L0021599 11790061 11790060 11790052 11790070 840 Technical Supplement 4 LOCAL Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR L 2016 4TuH LAP02TA470K 11790066 L 2017 COIL 0 42U L0021399 L 2018 M RFC 3 3uH LAPO2TA3R3K 11790052 L 2019 COIL 0 360 L0021400 L 2020 2 LAPOZTA2RTK L1790051 L 2021 M RFC 100uH LAPOZTA101K L1790070 L 2022 M RFC 10uH LAPOZTA100K L1790058 L 2023 4 TuH LAPOZTA4RTK 11790054 L 2024 5 515 000 6UEW 10021832 L 2025 COIL 5 575 000 6UEW 100218324 L 2026 luH LAPO2ZTA1ROK 11790046 L 2027 COIL 0 280 10021401 L 2028 RFC 18uH LAPOZTA180K 11790061 L 2029 RFC 22uH LAPO2TAZ20K L1790062 L 2030 M RFC 2 TuH LAPOZTAZRTK L1790051 L 2031 COIL 5 575 000 6UEW R L0021832A L 2032 COIL 5 575 000 6UEW R 10021832 L 2033 M RFC 100uH LAPO2TA101K 11790070 L 2034 RFC 100uH LAPO2TA101K L1790070 L 2035 M RFC 100uH LAP0214101K L1790070 L 2036 M RFC 100uH LAPO2TA101K L1790070 L 2037 M 100uH LAPO2TA101K 11790070 Q 2001 IC X24C01AP G1091615 5 3 0 2002 TRANSISTOR 25028121 6 G3328127
106. 9502 80 17 9L5 JID13 2015 2009 20019 T PM 15 l Foros p 202 REOY 29501 80 9215904 mew 1 rou e e Se 2282 554 8549 5588 5 B 5 x i O90 00 22 L peoc P0017 19206302 NE a r V qot VR A UNIT 2 2 i SW B UNIT 92 1 F3394107 10KB 10kB i lya r NO 71300 F3394102 i i 4 F 4 PS 29102 O SW A UNIT 327102 Su Sus a 1 3394106 1 UNIT w 5 20 7201 1 10KB 10KA 72X F3394103 gr 9 T 2702 L P0003 19206299 12 EXT SPKR SP M4090061 P9025 0029 32002 BAND DATA J2003 42025 LII TUNER2 J2004 1 5 D P0028 79206152 THER stad LOCAL UNIT me 024 7920632 CERONELU IT 74025556 3394101 19317326 2 5 1 52021 4 Ee 99009 19601 19206304 S A I OSC UNIT P0007 NO 27 5 1 LA 19317928 F3392102 SP2 gt 1ST LO HPI 92022 TCXO UNIT 5 4 TCXO PT090351 E 10
107. ALUE WV TOL FC 10 option 6406 RELAY RL6407 RELAY RL6408 RELAY RL6409 RELAY RL6410 RELAY RL6411 RELAY RL6412 RELAY RL6413 RELAY RL6414 RELAY VC6401 TRIMMER CAP 125pF VC6402 TRIMMER CAP 125pF 640 Technical Supplement DESCRIPTION YAESU P N VERS AGP2003 M1190075 AGP2003 M1190075 AGP2003 M1190075 AGP2003 M1190075 AGP2003 M1190075 AGP2003 M1190075 AGP2003 M1190075 AGP2003 M1190075 AGP2003 M1190075 YV 125 05 K90000049 YV 125 05 K90000049 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tok 01844 351694 01844 352554 enquiries mauritron co uk 7E 15 Notes 16 Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 enquiries mauritron co uk FT 840 Technical Supplement Tuner Control Unit Circuit Diagra TUNER CNTL UNIT 248000 ILES vac UNLESS OTHERWISE NOTED For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 01 B44 352554 pere L Email enquiries mauritron co uk NOTE ELECTUKLYTIC PARI MT IN 16V FT 840 Technical Supplement an
108. AURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 01844 352554 Email enquiries mauritron co uk 840 Technical Supplement Notes For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk ii FT 840 Technical Supplement HT DDS 2 Unit Circuit Diagram r e SS a n UNUS ee M DDS 2 UNIT NG 26 F3334101 GNO od EH SHSHOHSHSHO GH3HTA 42 2 04 9 i 0260 x i FQ7320 8 2 126503 L2604 2 B2 6 3 2 C2509 A2606 C2611 625 3 52502 4 0 01 470 56 CH 180 CH P0090523 Lan 23 Le beo m 2 EXE P e s 2 V at Se od E 5 oU 6 5 ag 55 ae 63 62 63 8 2 58 28 lt REF in 9009090009 24 82604 1 On NOTE RESISTOR VALUES ARE IN Q T1 10W CAPACITOR VALUES IN af SOY 4T CAPACITOR VALUES ARE TANTALUM INDUCTOR VALUES ARE IN H UNLESS OTHERWISE NOTED r n 20030594 T ove 2603 4 7 3 Collector Base Emitter 207920 For Service Ma
109. C1 10T 000J J24205000 2002 SLIDE SWITCH 555521 N6090069 2003 SLIDE SWITCH SSSS21 N6090069 For Service Manuals Contact 2001 COIL MAURITRON TECHNICAL SERVICES 44 6M 0021862 2002 COIL TRS Do aO 44 6M L0021862 2003 COIL Tel 01844 351694 Fax 01844 352554 44 6M L0021862 2004 COIL ee anes HRK QUU 8 20M R12 4043A 10021199 2005 COIL 8 20M 12 40434 L0021199 T 5B 16 FT 840 Technical Supplement LOCAL Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR TP2001 TERMINAL TP E MS 60124 Q5000016 2002 TERMINAL TP E MS 60124 Q5000016 TP2003 TERMINAL TP E MS 60124 Q5000016 TP2004 TERMINAL TP E MS 60124 Q5000016 TP2005 TERMINAL TP E MS 60124 Q5000016 TP2013 TERMINAL TP E MS 60124 Q5000016 TP2014 TERMINAL TP E MS 60124 Q5000016 TP2015 TERMINAL TP E MS 60124 95000016 TP2016 TERMINAL TP E MS 60124 Q5000016 VR2001 POT 10K EVN DCAA03814 J50784103 X 2001 XTAL 19 6608MHz H0103052 X 2002 XTAL 38 84MHz H0102853 THERMAL CONDUCTOR 45 0 220 99000548 COVER R0124131 LEAF SPRING 2 pcs R0125800 VCO CASE R0124120 SHIELD PLATE R0124140B HEATSINK PLATE R0140810B CARD SPACER 56000191 NYLON RIVET FNRP 3 0X4 5 56000031 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 5B 17 FT 840 Technical Supplement Notes For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree R
110. C2 UJ CZ C2 C2 CJ CO CO CZ CZ C C7 C7 CJ C7 C2 C2 gt CZ CZ CZ C2 C2 C2 CZ C2 C2 C2 C2 C2 C2 C2 1081 DIODE 1083 DIODE 1084 DIODE 1085 DIODE 1086 DIODE 1088 DIODE 1089 DIODE 1090 DIODE 1092 DIODE 1093 DIODE 1094 DIODE 1095 DIODE 1096 DIODE 1097 DIODE 1098 DIODE 1SS198TJ 1SS83RE 1SS198TJ 1552107 15 157 1558 1551987 1551987 1552707 1552707 1552707 1552707 15527077 1SS83RE HSM2838 TR 1552707 15527077 HSB88WSTR 1552701 15527072 15527077 HSM2838 TR HSM2838 TR HSM2838 TR HSM2838 TR HSM2838 TR HSM2838 TR 1SS270TJ 1SS270TJ 1552707 15527079 15527079 155226 TE85R 1552707 1552707 1552707 HSM2838 TR HSM2838 TR HSM2838 TR 1SS270TJ HSM2838 TR 1SS270TJ 1552707 HSM2838 TR 1552707 1552707 1552701 1552101 1552707 62781 1SS83RE 2781 1551981 62060011 62050007 62060011 62060004 62060014 62050007 62060011 62060011 62060004 62060004 62060004 62060004 62060004 62050007 62070108 62060004 62060004 62070290 62060004 62060004 62060004 62070108 62070108 62070108 62070108 62070108 62070108 62060004 62060004 62060004 62060004 62060004 62070003 62060004 62060004 62060004 62070108 62070108 62070108 62060004 62070108 62060004 62060004 62070108 62060004 62060004 62060004 62060004 62060004 62090229 62050007 62090229 62060011 54 11 840 Technical Supplement MAIN Unit REF M
111. COIL L 4011 COIL L 4012 COIL L 4013 COIL L 4014 RFC 1mH L 4015 M 1mH P 4002 WIRE ASSY P 4003 P 4004 WIRE ASSY amp 4002 CARBON FILM RES 27 1 64 5 R 4003 CARBON FILM RES 27 1 6W 5 RL4001 RELAY DC12V 814002 RELAY DC12V RL4003 RELAY DC12V RL4004 RELAY DC12V RL4005 RELAY DC12V RL4006 RELAY DC12V 8 4007 RELAY DC12V RL4008 RELAY DC12V RL4009 RELAY DC12V RL4010 RELAY DC12V 81 4011 RELAY DC12V RL4012 RELAY DC12V RL4013 RELAY DC9V TC4001 TRIMMER 20pF 5H 4 DD110F473250 DD110F473250 DD110F473250 DD110F473250 DD110F473250 001107473250 155270 155270 155106 08 201 500 3 7700 T50 2 2 9400 T50 2 1 9000 150 2 2 4000 T 50 2 1 1000 T50 6 1 3200 T50 6 0 6200 T50 6 0 4600 T50 6 8 018 500 9UEW R 9 018 500 9UEW R 6 018 ODO 8 R 7 018 500 9UEW R 1100 19 3 4 8 5 LALO4NA102K LALO4NA102K RD16UJ270 RD16UJ270 AG2013 AG2013 AG2013 AG2013 AG2013 4G2013 462013 462013 802013 462013 802013 802013 AGP2017 ECV12W20X32 K13179009 K13179009 K13179009 K13179009 K13179009 K13179009 G2090408 62090408 62090244 99000375 19206311 10021405 10021406 10020615 10021433 10020617 10020618 10021407 10021408 10021855 10021856 10021857 10021858 10021859 11190090 11190090 79317815 79317816 102225270 02225270 M1190045 M1190045 M1190045 M1190045 M1190045 M1190045 M1190045 M1190045 M1190045 M1190045 M1190045 M1190045 M1190087 K9
112. CONNECTOR 2014 CONNECTOR 2015 CONNECTOR 2016 CONNECTOR 2017 CONNECTOR 2018 CONNECTOR 2020 CONNECTOR 2021 CONNECTOR 2022 CONNECTOR 2023 CONNECTOR 2024 CONNECTOR 2025 CONNECTOR 2026 CONNECTOR 2001 2002 RFC 2003 M RFC 2004 M RFC 2005 M RFC 2006 M RFC 2007 M RFC 2008 M RFC 2009 M RFC 2010 M RFC 2011 COIL 2012 M RFC 2013 M RFC 2014 M RFC 2015 M RFC For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tot 01844 351694 01 844 352554 Email enquiries mauritron co uk 100uH 100uH 0 22uH 0 27uH 1 8uH 1 5uH 1 2uH 1 2uH 1 5 150uH 18uH 15uH 3 3uH 100uH 15553 1SV103 TPE4 15553 15103 4 15527074 15553 13103 4 155184 5 1552701 155226 TE85R 155226 TE85R SC25 04WS CSK M50 08 CSK M50 05 CSK M50 06 5625 0585 5625 0485 SC25 06WS SC25 03WS SC25 05WS SC25 12WS SC25 11WS 568035801 5625 0245 5625 0585 5025 0305 5625 0445 5625 0345 5625 0545 TMP J01X 42 01 2 TMP J01X A2 SC25 02W8 3022 04B CSK M50 08 1MSA 91178 06A LAP02TA101K LAPOZTA101K LAPOZTAR22K LAPOZTARZTK LAPO2TA1RSK LAPO2TA1RSK LAPO2TA1R2K LAPO2TA1R2K LAPO2TA1RSK LAPO2TA151K 50 0M LAPO2TA180K LAPOZTA150K LAPOZTASR3K LAPOZTA101K 62050008 02050013 02050008 02050013 62060004 62050008 62050013 62070009 62060004 62070003 62070003 20090623 P1090804 P1090802 P1090803 P00
113. Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon 9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk Obverse View of Chip Side Parts List REF MFGR S DESIG VALUE W TOL DESCRIPTION YAESU P N VERS YF 112A Printed Circuit Board F3396000 C 8301 CERAMIC CAP 0 OluF 16V Y 050 103 28129001 C 8302 CERAMIC CAP 0 OluF 16V Y EPO50Y103N A K28129001 J 8301 CONNECTOR 5124 04BHPB P1090426 J 8302 CONNECTOR 5124 04BHPB P1090426 XF8301 XTAL 112 11102230 7C 1 FT 840 Technical Supplement YF 112C option Circuit Diagram Downloaded by CW FILTER UNIT NO 82 ee mateur Radio Directory 3396000 XF8201 www hamdirectory info jaor P1090426 C8201 0 01 16V Y NOTE CAPACITOR VALUES ARE IN F For Service Manuals Contact UNLESS OTHERWISE NOTED MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 407 Tok 01844 351694 01844 352554 Email enquiries mauritron co uk Parts Layout S Obverse View of Chip Side Parts List REF MFGR S DESIG VALUE W TOL DESCRIPTION YAESU P N VERS YF 112C Printed Circuit Board F3396000 8201 CERAMIC CAP 0 OluF 16V Y EPO50Y103N A K28129001 C 8202 CERAMIC CAP 0 OluF 16V Y K28129001 J 8201 CONNECTOR 5124 04BHPB P1090426 J 8202 CONNECTOR 5124 04 1090426 XF8201 XTAL XF 112C 11102231 7D 1 FT 84
114. D 5006 DIODE 1SS270TJ 62060004 J 5001 CONNECTOR 401 2 1090255 J 5002 CONNECTOR TMP J01X A2 P1090255 J 5003 TERMINAL R0100970 J 5004 TERMINAL R0100970 J 5007 CONNECTOR SC25 02WS P0090621 JP5001 WIRE ASSY 19206322 L 5001 M RFC 1 5uH LALO3VB1RSM L1790130 L 5002 COIL 41 000 FR9 5 5 10021432 L 5003 RFC 4370 16 4X9CB 20 L1020666A L 5004 33uH LALO3TA330K 11790101 L 5005 FB 43 5111 L1020015 Q 5001 TRANSISTOR 2SC2166 G3321660 Q 5002 TRANSISTOR 2SC3133 21 G3090086 Q 5003 TRANSISTOR 2SC3133 21 63090086 Q 5004 TRANSISTOR 2SC3240 21 03090087 9 5005 TRANSISTOR 2503240 21 53090087 Q 5006 TRANSISTOR 4 63050001 Q 5007 TRANSISTOR 2SA1283D G3112830D Q 5008 IC UPC7808H G1090294 Q 5009 TRANSISTOR 2508820 034088209 Q 5010 IC M5218AL G1091140 Q 5011 TRANSISTOR 2SC2001 L G3320010L R 5001 CARBON FILM RES 1 2K 1 6W 5 RD16TPJ122 J07225122 5002 CARBON FILM RES 470 1 68 5 RDI6TPJ471 07225471 R 5003 CARBON FILM RES 150 1 68 5 RD16TPJ151 J07225151 R 5004 CARBON FILM RES 2 7 1 44 5 RD14TJ2R7 J01245279 R 5005 CARBON FILM RES 470 1 68 5 RD16TPJ471 07225471 R 5006 CARBON FILM RES 1 5 1 2W 5 RD12TJ1R5 J01275159 R 5007 CARBON FILM RES 1 5 1 28 5 RDI2TJlR5 J01275159 R 5008 CARBON FILM RES 24 1 2W 5 RD12TJ240 J01275240 R 5009 CARBON FILM RES 24 1 24 5 0127 240 J01275240 R 5010 METAL FILM RES 82 1H 5 ERG 1SJ820P 422309029 R 5011 METAL FILM RES 82 l W 5 ERG 1SJ820P 22309029 R 5012 METAL FIL
115. E LLL FT 840 Technical Supplement Collector Haat Sink f Emitter T collector 25 2166 95001 Obverse View of Component Side Collector Emitter BA1 Q d RES Gear Sink e e u Output Ground PC7808H Q5008 Obverse View of Solder Side PEU UNUM dl Collector Emitter PA Unit Heat Sink Heat Sink Emitter Collector Collector 77 emitter s Base i 25 2186 25 3133 25 3240 05001 05002 5003 05004 5005 B 1 Collector I Base Collector Emitter Collector Emitter 10k Emitter 25 412830 05006 05007 25 2001 05011 Am Output Pint My Ground ollector gt Input Emitter Pin 8 PC7808H 2508820 Q5008 Q5009 Q5010 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4 01844 351894 Fax 01844 352554 enquiries mauritron co uk Unit Parts List REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR UNIT xxx PCB with Components U SERVICES CS1300001 8 Cherry Tree Rd Chinnor Printed Circuit Board 22295000 Email enqui es mauritron co uk 5001 CERAMIC CAP 0 047uF 50V 4732 28179002
116. E2 50V100M K40179041 C 6578 CHIP CAP 0 047uF 50V F GRMAOP473250PT K22171008 C 6579 AL ELECTRO CAP 10uF 50V RE2 50V100M K40179041 C 6580 CHIP CAP 0 047uF SOV KGRM40F473Z50PT K22171008 C 6581 AL ELECTRO CAP 1QuF 16V 2 16 100 40129012 6582 CHIP 0 047uF 50 KGRM40F473Z50PT K22171008 C 6583 AL ELECTRO CAP 10 16V RC2 16V100M K40129012 C 6584 CHIP CAP 0 04742 50V GRM40F473Z50PT K22171008 C 6585 CHIP CAP 0 04742 50V GRM40F473250PT K22171008 C 6586 CHIP CAP 0 012 50V GRM40BI03MSOPT K22170817 C 6587 AL ELECTRO CAP 100uF 10V RC2 10V101M 40109015 C 6588 CHIP CAP 0 0luF 50V GRM40B103M50PT K22170817 C 6589 TANTALUM CHIP CAP 22uF 6 3V TESVC0J226M12R K78080011 C 6590 CHIP CAP 0 0luF 50 B GRM40B103M50PT K22170817 C06501 CERAMIC OSC CSA8 OOMT H7900580 D 6501 DIODE 155101 62090223 D 6502 DIODE 155101 62090223 D 6503 DIODE RD4 7EB2 T G2060006 D 6504 DIODE 1SS270TJ 62060004 D 6505 DIODE 1SS270TJ 62060004 D 6506 DIODE 15597 02090118 D 6508 DIODE HSM2838 TR 62070108 D 6509 DIODE 1SS97 G2090118 7 22 FT 840 Technical Supplement REF MFGR S DESIG 6510 DIODE 6511 DIODE 6512 DIODE 6513 DIODE 6514 DIODE 6515 DIODE 6516 DIODE 6517 DIODE 6520 DIODE C2 C2 CJ C2 C2 C2 C2 CZ 6501 CONNECTOR 6502 CONNECTOR 6503 CONNECTOR 6504 CONNECTOR 6505 CONNECTOR 6506 CONNECTOR 6507 CONNECTOR 6508 CONNECTOR 6510 CONNECTOR Cc c c c cc JP6501 WIRE ASSY JP6502 WIRE ASSY
117. EQUENCY For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 enquiries mauritron co uk Viewed From A Side 76 1 FT 840 Technical Supplement MD 1cs option Exploded View S8000590 S8000650 NECK CASE S8000674 NAME PLATE SCREW 2pcs 58100216 CONNECTOR d R M ET GRIP CASE 58100175577 58000488 SLID SWITCH MIC HOLDER S8100022 ee S8000599 MIC ELEMENT MIC GRILL COVER lt SCREW 58000662 REW A 58000651 ADAPTER S8000487 SWITCH PLATE S8000652 PIPE SCREW Non designated parts are available only as part of a designated assembly 58000661 SS STAND BASE 7 8000675 8100030 SWiTCH3pcs 58100023 TONE SWITCH 8100025 58000659 LOCK SWITCH 1 i SWITCH KNOB ADPT 58000657 LOCK SWITCH LEVER gt S8100217 CONNECTOR S8000656 SWITCH KNOB S8100139 MIC CORD S8000676 SCREW 2pcs S8000655 8000654 SWITCH KNOB LOCK SWITCH KNOB 58000660 58100029 PTT SWITCH S8000658 S8000677 PTT SWITCH LEVER FOOT 4pcs 8000664 SCREW 4pcs 76 2 840 Technical Supplement Specification Impedance 350 30 at 1kHz Operating Temperature Range 50 C Sensitivity 1034B mW 3dB at 1kHz 0 0002 x bar Speaker Maximum Input 50
118. F d 3 Q 2003 TRANSISTOR 2SC4047 TA 63340477 4 2 Q 2004 TRANSISTOR 2504047 63340477 9 3 Q 2005 TRANSISTOR 28C4047 TA 63340477 3 Q 2006 TRANSISTOR 2SD669A 03406691 1 Q 2007 TRANSISTOR 25 1179 6 G3111797F b 2 Q 2008 TRANSISTOR 2SA1563 TB 63115638 Q 2009 IC HD6475348F10 G1091769 3 Q 2010 TRANSISTOR 25 1563 63115638 b 3 Q 2011 TRANSISTOR 25 1563 03115638 2 Q 2012 TRANSISTOR 2SC2812L6 T 63328127F b 2 Q 2014 IC RH5VA45AA TI 61090966 5 2 Q 2015 TRANSISTOR 25 4047 63340477 b 3 Q 2017 TRANSISTOR 2SC4047 TA 03340477 b 3 Q 2018 TRANSISTOR 25 1563 03115638 3 Q 2019 TRANSISTOR 2SC4047 TA 63340477 3 9 2020 IC MC140288FL 61090998 2 Q 2021 TRANSISTOR 2508820 034088206 B 3 Q 2023 IC 07924 61091080 0 2 Q 2024 TRANSISTOR 25 281216 G3328127F 3 Q 2025 IC TC4S81F TE85R 61090895 b 3 Q 2026 IC TDA2003H 61090815 3 Q 2027 IC UPC1037H 61090101 B 1 Q 2028 TRANSISTOR 2SC2T14YTE85R G3327147Y a 1 Q 2029 IC SN16913P 61090012 0 1 Q 2030 TRANSISTOR 25628121 6 63328127 2 Q 2031 TRANSISTOR 2SC2812L6 TA G3328127F a 1 Q 2032 TRANSISTOR 2SC2812L6 14 G332812TF b 1 Q 2034 FET 2SK210GR TE85R 638021076 9 1 5 11 840 Technical Supplement LOCAL Unit REF MPGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR Q 2035 1C TCT4HC74AF EL 01091446 b 2 Q 2036 IC SN16913P G1090012 C 2 Q 2037 TRANSISTOR 2SC2714YTESSR
119. FGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR D 1099 DIODE 1551981 62060011 D 1100 DIODE 1SS270TJ 62060004 D 1101 DIODE 1552707 2060004 D 1102 DIODE 152707 2060004 D 1103 DIODE 1SS270TJ 62060004 D 1104 DIODE 1552707 2060004 D 1105 DIODE 1552707 2060004 D 1106 DIODE 1552707 62060004 D 1107 DIODE 1SS2701J G2060004 D 1108 DIODE 1552701 62060004 D 1109 DIODE 1SS2701J 2060004 D 1110 DIODE 1927077 2060004 D 1111 DIODE 1552707 2060004 D 1112 DIODE 1552707 2060004 D 1113 DIODE 1SS198TJ G2060011 D 1114 DIODE 1SS270TJ 62060004 D 1115 DIODE 1527077 62060004 D 1116 DIODE 1SS270TJ G2060004 D 1117 DIODE MI308 62090337 D 1118 DIODE M1308 62090337 D 1119 DIODE 1552701 62060004 D 1120 DIODE 1SS2707J 62060004 D 1121 DIODE 1552707 2060004 D 1122 DIODE HSM2838 TR 2070108 D 1123 DIODE 1552707 2060004 D 1124 DIODE 1SS2707J G2060004 D 1125 DIODE 1552707 2060004 D 1126 DIODE 18S270TJ G2060004 D 1127 DIODE 1SS270TJ G2060004 J 1001 CONNECTOR TMP J01X V6 P1090210 J 1002 CONNECTOR SC25 08WS P0090627 J 1003 CONNECTOR TMP JO1X V6 P1090210 J 1004 CONNECTOR For Service Manuals Contact TMP J01X V6 P1090210 J 1005 CONNECTOR MAURTRON TECHNICAL SERVICES TMP JO1X V6 P1090210 a ae xu 5025 0445 P0090623 01844 351694 Fax 01844 B11P SHF 1 P0090636 J 1010 CONNECTOR TMP J01X V6 P1090210 J 1011 CONNECTOR 8625 0515 P0090624 J 1012 CONNECTOR SC25 03WS P0090622 J 1013 C
120. FP 72A 61090990 4 2 Q 1042 TRANSISTOR 2SC2812L6 TA 63328127 1 Q 1043 IC M5218AFP 600C 61091607 1 9 1044 TRANSISTOR 29 4047 63340477 b 3 Q 1045 TRANSISTOR 2504047 03340477 2 Q 1046 TRANSISTOR 2SC4047 TA 3340477 2 Q 1047 TRANSISTOR 2SC4047 TA 63340477 a 2 Q 1048 TRANSISTOR 2SC4047 TA 03340477 2 9 1049 1 M5218AFP 600C 61091607 a l Q 1050 IC TC4W66F TE12L 51091493 b 1 Q 1051 IC 61090837 1 Q 1052 TRANSISTOR 2SC4047 TA G3340477 a 2 Q 1053 TRANSISTOR 2SC4047 TA 63340477 5 1 0 1054 TRANSISTOR 2804047 TA 63340477 5 1 Q 1055 FET 3SK131 T2B V12 G4801317B b 3 Q 1056 FET 2SK302Y TES5R G3803027Y a 3 Q 1057 TRANSISTOR 2SC2812L6 TA 6G3328127F a 3 Q 1058 TRANSISTOR 250281216 03328127 3 Q 1059 TRANSISTOR 2SC4047 TA 63340477 3 Q 1060 TRANSISTOR 2SA1179M6 TA G3111797F a 2 Q 1061 TRANSISTOR 2SC4047 TA 03340477 3 Q 1062 TRANSISTOR 2SA1179M6 TA G3111797F a 2 Q 1063 TRANSISTOR 2SC4047 TA G3340477 d 2 Q 1064 TRANSISTOR 2SC2812L6 TA G3328127F 2 Q 1065 TRANSISTOR 25 28121 6 G3328127F c 2 Q 1066 TRANSISTOR 2SC4047 TA 03340477 2 Q 1067 TRANSISTOR 2SC4047 TA 03340477 6 2 4 1068 29J125D T12 1D G3701257D a 1 Q 1069 TRANSISTOR 2SC4047 TA G3340477 1 1001 RES 4 TK 1 108 5 1 107 472J 24205472 R 1002 RES 47K 1 10W 5 RMC1 10T 473J J24205473 R 1004 CARBON FILM RES 1 5M 1 66 5X RDI6TPJ155 07225155 R 1005 CHIP RES 3 1 108 5 1 10 33241 424205334
121. G VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR c gt Ch CO cocco 5A 8 1158 CHIP CAP 1159 AL ELECTRO CAP 1160 CHIP CAP 1161 CHIP CAP 1162 AL ELECTRO CAP 1163 CHIP CAP 1164 CHIP CAP 1165 CHIP CAP 1166 CHIP CAP 1167 CHIP CAP 1168 AL ELECTRO CAP 1169 CHIP CAP 1170 CHIP CAP 1171 CHIP CAP 1172 AL ELECTRO CAP 1173 CHIP CAP 1174 AL ELECTRO CAP 1175 AL ELECTRO CAP 1176 CERAMIC CAP 1177 AL ELECTRO 1178 AL ELECTRO CAP 1179 CHIP CAP 1180 AL ELECTRO CAP 1181 AL ELECTRO CAP 1182 CHIP CAP 1183 CHIP CAP 1184 CHIP CAP 1185 CHIP CAP 1186 CHIP CAP 1187 CHIP CAP 1188 CHIP CAP 1189 CHIP CAP 1190 CHIP CAP 1191 CHIP CAP 1192 CHIP CAP 1193 CHIP CAP 1194 CHIP CAP 1195 AL ELECTRO CAP 1196 AL ELECTRO CAP 1197 CHIP CAP 1198 TANTALUM CHIP CAP 1199 AL ELECTRO CAP 1200 AL ELECTRO CAP 1201 AL ELECTRO CAP 1202 CHIP CAP 1203 CHIP CAP 1204 AL ELECTRO CAP 1205 AL ELECTRO CAP 1206 CHIP CAP 1207 AL ELECTRO CAP 1208 CHIP CAP 1209 CHIP CAP 1210 AL ELECTRO CAP 22uF 0 0033uF 4 TuF 0 OluF 0 047uF 100uF 50V 35V 50V 50V 16V xj 72 z ij J DH
122. GRM40CH101J50PT K78160028 K22171004 K22170805 K22170235 K22170805 K22170805 K22170805 K46120007 K46120002 22171004 K22171004 K22171004 K22170817 K46120007 K22171004 K40129049 K46170030 40089025 K22170817 K22171004 K50177104 22170805 K22171004 28179003 K22170805 22170805 22171004 28179001 522170205 K22170202 K22170201 K22170211 K22171004 K22171004 K28129001 K22171004 K22170329 K22170805 K22170805 K22171004 K22171004 K22170805 K22170805 K22170229 K22170221 K22170313 K22170213 K22170237 K22170211 K22170231 K22170235 K22170235 K22110235 FT 840 Technical Supplement For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Charry Chinnor Tel 01844 351694 01844 352554 LOCAL Unit Email nquiries mauritron co uk REF MFGR S DESIG VALUE WY DESCRIPTION YAESU P N VERS ADDR C 2104 CHIP CAP 100pF 50V GRM4O0CHIO1JSOPT 22170235 2105 CHIP 0 luF 25V KGRM40B104M25PT K22140811 C 2106 AL ELECTRO 100uF 16V 16V101M6X7TR2 K46120007 2107 CHIP CAP 0 010 50V GRM40F103Z50PT K22171004 2108 CAP 0 0112 50 GRM40F103Z50PT K22171004 2109 CHIP CAP 50V UJ GRM40UJIO0DSOPT 122170311 2110 CHIP CAP 39pF 50V UJ GRM40UJ390J50PT K22170325 C 2111 CHIP CAP apf SOV CK GRM40CKO2Z0C50PT 22170203 C 2112 CHIP CAP 5pF 50V CH GRM4OCHOSOCSOPT 22170206 C 2113 CHIP CAP 9pF 50V GRM40CHOSODSOPT K2
123. GRM40CH121J50PT GRM40F473Z50PT GRM40CH221J50PT GRM40CH680J50PT GRMA0CH680J50PT 16V100MAX7TR2 GRM40F473250PT CRM40F473250P7 GRM40F 103Z50PT GRM40CHS60J50PT GRM40CH470J50PT GRM40CH680J50PT GRM40CH680J50PT GRM40F 103Z50PT GRM40B102M50PT GRM40CH151J50PT 16V100M4X7T82 GRM40F473Z50PT GRM40CH390J50PT GRM40CH390J50PT 16V100M4X7TR2 16V100M4X7TR2 K22171004 K22171008 K22170219 K22171008 K22171004 K22171004 K22171008 K22171004 K22171004 K22170805 K22171004 K22170805 K22171008 K22141005 K22171004 K22171004 K19149025 K19149023 K22170817 K22171004 K22171004 K22171004 K22171004 K22171008 K22171004 K22171004 K22171008 K22170227 K22141005 K22171008 K22170237 K22170237 K22171008 K22170243 K22170231 K22170231 K46120004 K22171008 K22171008 K22171004 K22170229 K22170227 K22170231 K22170231 K22171004 K22170805 K22170239 K46120004 22171008 K22170225 K22170225 K46120004 K46120004 FT 840 Technical Supplement TECHNICAL SERVICES MAIN Uni t 8 Cherry Tree Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR C 1104 AL ELECTRO CAP 104 16V 16V100M4X7TR2 K46120004 1105 CHIP CAP 0 04TuF 50V CRM40F473250PT K22171008 C 1106 CHIP CAP 0 0 uF 50 GRM40F103Z50PT K22171004 C 1107 TANTALUM CHIP 1 5uF 16V TESVAICL55M1 8R 78120020 C 1108 AL ELECTRO
124. GRM40F103250PT GRM40F103250PT GRM40F103250PT GRM40UJ270J50PT GRM40UJ270J50PT GRM40F 103250PT GRM40F 103250 GRM40F103250PT GRM40F 103Z50PT GRM40CHO80D50PT GRM4QUJ180JS0PT GRM40F 103Z50PT 16V100M4X7TR2 GRMAOF 103250PT RC2 16V470M T34 GRM40F 103250 GRM40UJ120JS0PT GRM40UJ270J50PT GRM40B102M50PT GRM40CKOLOCSOPT GRM40UJ100D50PT GRM40F 103250 GRM40F 103Z50PT GRM40F 103250PT 68 40 050 50 GRM40F473Z50PT UP050B102K A B GRM40CH820J50PT GRM40CH470J50PT GRM40CH820J50PT GRM40B102M50PT GRM40F103250PT GRM40UJ150JS0PT GRM40B102MS0PT GRM40F103250PT GRM40CH270J50PT GRM40CHS60J50PT GRM40CH270J50PT GRM40CH180J50PT GRMAOCHOGODSOPT GRM40F 103250PT GRM40CH820J50PT GRMAOCH121J50PT GRM40CH820550PT K22170209 K22170235 K46120007 K22171004 K22170319 K28179001 K22171004 K50170032 K22171004 K22171004 K22171004 K22171004 K22170321 K22170321 K22171004 K22171004 K22171004 K22171004 K22170209 K22170317 K22171004 K46120004 K22171004 K46120010 K22171004 K22170313 K22170321 K22170805 K22170202 K22170311 K22171004 K22171004 522171004 K22170206 K22171008 K28179001 K22170233 K22170227 K22170233 K22170805 K22171004 K22170315 K22170805 K22171004 K22170221 K22170229 K22170221 K22170217 K22170207 K22171004 K22170233 K22170237 K22170233 FT 840 Technical Supplement LOCAL Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR C 2222 CHIP CAP 0 0luF 50 F GRMAOF103250PT
125. H 02 180 11790061 L 1016 RFC 18uH LAPO2TA180K L1790061 L 1017 M RFC 150uH 2 151 11790072 L 1018 COIL 8 575 000 6UEW R 10022217 L 1019 150uH LAPOZTA151K L1790072 L 1020 M RFC 8 2uH LAPOZTASRZK 11790057 L 1021 8 2uH LAPO2TABR2ZK L1790057 L 1022 3 9uH LAPO2TASRSK L1790053 L 1023 M RFC 12uH LAPOZTA120K L1790059 L 1024 M 12uH LAPO2TA120K L1790059 L 1025 M RFC 150uH LAPOZTA151K 11790072 L 1026 RFC 10uH LAPO2ZTALOOK L1790058 L 1027 RFC 0 ZTuH LAPO2TARZTK L1790039 L 1028 RFC 4 LAP02TA4R7K L1790054 L 1029 4 LAPOZTA4RTK L1790054 L 1030 M RFC 2 LAPO2TA2RZK L1790050 L 1031 M RFC 6 8uH LAPO2TA6RSK L1790056 L 1032 M RFC 6 8uH LAPOZTAGRSK 11790056 L 1033 100uH LAPOZTA101K L1790070 L 1034 M RFC 3 9uH LAPOZTA3RSK 11790053 1035 RFC 3 LAPOZTA3ROK L1790053 L 1036 M RFC 0 82uH LAPO2TARB2K 11790045 L 1037 2 2uH LAPO2TA2R2K L1790050 L 1038 2 TuH LAPOZTA2RTK L1790051 L 1039 M RFC 2 TuH LAPOZTA2RTK L1790051 L 1040 M RFC 4TuH LALO3VB470K L1790148 L 1041 M RFC 100uH LALO3VB101K L1790152 L 1042 RFC 2 2uH LAPO2TA2R2K 11790050 1043 2 2uH LAPO2TA2R2K L1790050 L 1044 100uH LAPO2TA101K L1790070 L 1045 M RFC 0 47 LAPOZTARATK L1790042 L 1046 M RFC 1 2 1 8 11790049 5A 13 FT 840 Technical Supplement MAIN Unit REF MFGR S DESIG
126. HIP CAP 0 OluF 50V F GRM40F103Z50PT K22171004 J 2601 CONNECTOR 3022 058 0090594 J 2602 CONNECTOR 3022 04B P0090523 L 2601 220uH LAP02TA221K L1790074 L 2602 220uH 2 221 11790074 L 2603 82uH LAP02TA820K L1790069 L 2604 56uH LAPO2TAS60K 11790067 Q 2601 IC FQ7920 CF77T399FS 01090952 Q 2602 TRANSISTOR 2SC2712GR TE85R 033271270 Q 2603 TRANSISTOR 2SC2712GR TE85R 033271270 R 2602 RES 10K 1 104 5 RMCI 10T 103J J24205103 R 2603 CHIP RES 22K 1 10W 5 RMC1 10T 223J J24205223 R 2604 CHIP RES 22K 1 10W 5 RMC1 10T 223J 124205223 R 2605 RES 100 1 10W 5 10 101J 124205101 R 2606 RES 470 1 10W 5 RMC1 10T 471 424205471 2607 RES 100K 1 10W 5 RMC1 10T 104J J24205104 R 2608 CHIP RES 1 104 5 107 102 124205102 R 2609 RES 1 10W 5 107 1054 424205105 RB2601 BLOCK RES RKM10LG103 RKM10LG103 J40900170 SHIELD CASE R0131630 5D 3 840 Technical Supplement Notes For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 enquiries mauritron co uk 5D 4 FT 840 Technical Supplement OSC Unit Circuit Diagram i OSC UNIT NO 27XX F3392102 J CAPACITOR VALUES ARE IN F 50 UNLESS OTHERWISE Pa
127. I 10T 103J RMC1 10T 472 1 107 473J RMC1 10T 103J 1 10 225J RMC1 10T 103J RMC1 10T 333J 1 10 103J J24205103 01275240 24205103 424205104 424205470 424205104 424205152 424205152 424205333 424205102 24205333 124205152 424205152 24205104 24205104 424205473 424205473 424205102 424205102 424205104 424205104 24205102 124205102 24205103 424205103 424205103 24205104 424205224 424205104 424205224 424205102 124205102 424205104 424205105 324205224 424205104 424205103 424205473 424205472 424205225 424205473 124205105 124205224 24205104 24205103 424205472 424205473 424205103 424205225 424205103 424205333 124205103 FT 840 Technical Supplement For Service Manuals Contact F 1 0 opti on 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tot 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk REF MFGR S DESIG VALUE WY TOL DESCRIPTION YAESU P N VERS R 6553 CHIP RES 22K 1 10W 5 10 223J J24205223 R 6554 CHIP RES 10K 1 108 5 RMCI 10T 103J J24205103 R 6555 CHIP RES 1 10W 5 10 102 24205102 R 6556 RES 1 10W 5X 10 102 24205102 R 6557 RES 1 10W 5 1 10 102 424205102 R 6558 CHIP RES 1 108 5 10 102J 24205102 R 6559 CHIP RES 1 104 5 10 102 24205102 R 6560 RES 1 108 5 107 102 124205102 R 6561 CHIP RES 1 10W 5
128. ILTER UNIT d io YF 112C QO 170 OPT 10N 4 e NO 82 e l s a J8201 F3396000 J8202 003 L l puc ee Ns Gs Pi cin OPTION in PTT NO 83XX I a0 F3396000 38302 u PE ag i TX TX 45001 41005 mum P7 Gi PU en hi a BL 100WPA UNIT 18 68 279013 P20 GRNY m NO SOXX EE 555 222 F3395000 290 9 102901 10WPA UNIT 13206308 NO GOXX F2846000A __ 238 i p Ss L p 75 M SW B UNIT sim i 0 92 I r F3394107 3 ca 71 0 l NC 3394102 3 sss it kd 212 PTT SW A UNIT 0 91 1920832 u213000 F3394106 am DATA gt m uw qu 5 8 20003 19206299 lt es i iu 5 0 6000t 0 _ Et gt gt gt gt 3 2 41920 4201 42008 023179208320 1 POC BLIO LOCAL UI P Ka MAIN UNIT
129. IP RES 560 1 108 5 RMC1 10T 561J J24205561 R 2173 CHIP RES 10K 1 104 5 10 103J J24205103 amp 2174 CHIP RES 150 1 10W 5 RMC1 10T 151J 24205151 R 2175 CHIP RES 100 1 10H 5 RMC1 10T 101J J24205101 R 2176 CHIP RES 22K 1 10W 5 RMC1 10T 223J J24205223 R 2177 CHIP RES 100 1 10W 5 10 101J J24205101 R 2178 CHIP RES 100K 1 10W 55 RMC1 10T 104J J24205104 R 2179 CHIP RES 22K 1 10W 5 10 223J J24205223 R 2180 CHIP RES 100 1 10N 5 10 7 101J J24205101 R 2181 CHIP RES 100 1 10W 5 RMC1 10T 104J 24205104 R 2182 CHIP RES 100K 1 108 5 RMC1 10T 104J J24205104 R 2183 CHIP RES 100K 1 108 5 10 104J J24205104 R 2184 CHIP RES 22K 1 104 5 10 223J J24205223 R 2185 CHIP RES 150 1 10W 5X 10 151J J24205151 R 2186 CHIP RES 680 1 108 5 10 681J J24205681 R 2187 CHIP RES 10K 1 108 5 107 103J J24205103 R 2188 CHIP RES 470 1 109 5 RMC1 10T 471J J24205471 R 2189 CARBON FILM RES 10 1 68 5X RD16TPJ100 07225100 R 2190 CHIP RES 680 1 104 5 RMCI 10T 681 J24205681 R 2191 CHIP RES 470 1 10W 5 RMC1 10T 471 J24205471 R 2192 CHIP RES 470 1 10W 5 RMC1 10T 471J J24205471 R 2193 CARBON FILM RES 56 1 6 5 RD16TPJ560 397225560 2194 CHIP RES 470 1 108 5 RMC1 10T 471 424205471 R 2195 CHIP RES 100 1 28 5 RMC1 2 101JCTP 24275101 R 2196 CHIP RES 100 1 24 5 1 2 101JCTP 424275101 2197 CARBON FILM RES 39 1 44 5 RD14TPR390J 05245390 R 2198 CA
130. J24205101 R 2118 CHIP RES 100 1 10W 5 RMC1 10T 101J 424205101 R 2119 CHIP RES 2 2K 1 10W 5 10 222 J24205222 R 2120 CHIP RES 22K 1 10 5 10 223J J24205223 R 2121 CARBON FILM RES 220 1 6N 5 0167 221 07225221 2122 CARBON FILM RES 220 1 64 5 RD16TPJ221 J07225221 R 2123 CARBON FILM RES 220 1 6N 5 RD16TPJ221 07225221 R 2124 CARBON FILM RES 220 1 6H 5 RDIGTPJ221 J07225221 R 2125 CARBON FILM RES 220 1 66 5X RD16TPJ221 J07225221 R 2126 CARBON FILM RES 220 1 6N 5 RDI6TPJ221 J07225221 R 2127 CHIP RES 100 1 104 5X RMCI 10T 101J J24205101 R 2128 CHIP RES IK 1 106 5 107 102 324205102 2129 RES 100K 1 10W 5 10 104J J24205104 R 2130 CARBON FILM RES 100 1 68 5 RDIGTPJIOL 07225101 R 2131 CHIP RES 330 1 10W 5 10 331J J24205331 R 2132 CHIP RES 22K 1 10W 5 107 223J J24205223 R 2133 CHIP RES 100 1 10 5 1 10 104 24205104 R 2134 CHIP RES 100 1 10W 5 10 104 24205104 2135 RES 150 1 104 5 107 151J 124205151 R 2136 CHIP RES 1 5K 1 10 5 10 1521 424205158 R 2137 CHIP RES 680 1 10W 5 10 681J J24205681 R 2138 CHIP RES 410 1 10 5 10 4710 24205471 R 2139 RES 100 1 104 5 107 104 424205104 R 2140 CARBON FILM RES 220 1 6N 5 RDI6TPJ221 J07225221 R 2141 CARBON FILM RES 220 1 6N 5 RD16TPJ221 J07225221 R 2142 CARBON FILM RES 220 1 66 5 RD16TPJ221 J
131. J500 K00275180 C 4009 MICA CAP 560pF 500V LCQ18561J5 K30275561 C 4010 CERAMIC CAP 240pF 500V SL 0012812417500 K00275241 C 4011 MICA CAP 0 0012uF 500V 1002112205 K30275122 C 4012 CERAMIC CAP 82pF 500 SL DDOSSL820J500 00275820 C 4013 MICA 620pF 500V LCQ18621J5 K30275621 C 4014 MICA CAP 300pF 5001 LCQ17301J5 K30275301 4015 CERAMIC 110pF 500V SL 0009511117500 K00275111 C 4016 MICA CAP 680pF 500V LCQ18681J5 K30275681 C 4017 CERAMIC CAP 36pF 500V SL 0006513603500 K00275360 C 4018 CERAMIC CAP 150pF 500V SL 0010511517500 00275151 4019 CERAMIC 220pF 500V SL DD12SL221J500 K00275221 C 4020 CERAMIC CAP 160pF 500V SL DD07SL161K500 K00276161 C 4021 CERAMIC CAP 43pF 500 SL 0007814307500 K00275430 C 4022 MICA CAP 300pF 500V LCQ17301J5 K30275301 C 4023 CERAMIC CAP 110pF 500V SL 0009511117500 K00275111 C 4024 CERAMIC CAP 110pF 500V SL 0009911117500 K00275111 C 4025 CERAMIC CAP 110pF 500V SL DD098L111J500 K00275111 C 4026 CERAMIC CAP 33pF 500 SL 1000653304500 K00275330 C 4027 CERAMIC CAP 150pF 5007 SL 0010511517500 K00275151 C 4028 CERAMIC CAP 82 500 SL DD09SL820J500 00275820 C 4029 CERAMIC CAP 12 500V SL 006511207500 K00275120 C 4030 CERAMIC CAP 500V SL 95111 500 K00275111 C 4031 CERAMIC CAP 100pF 500V SL DD09SL101J500 00275101 4032 33pF 500V SL 0006513307500 K00275330 C 4033 CERAMIC CAP 160pF 500V SL DDO7SL161K500 K00276161 C 4034 CERAMIC CAP 12pF
132. L ELECTRO CAP 1088 CHIP CAP 1089 CHIP CAP 1090 CHIP CAP 1091 CHIP CAP 1092 CHIP CAP 1093 CHIP CAP 1094 CHIP CAP 1095 CHIP CAP 1096 CHIP CAP 1097 CHIP CAP 1098 AL ELECTRO CAP 1099 CHIP CAP 1100 CHIP CAP 1101 CHIP CAP 1102 AL ELECTRO CAP C 1103 AL ELECTRO CAP 0 OluF 0 047uF 22pF 0 047uF 0 O1uF 0 O1uF 0 04TuF 0 OluF 0 OluF 0 001uF OluF O01uF 047uF luF OluF OluF luF 068 OluF OluF OluF OluF OluF 0 047uF 0 OluF 0 OluF 0 047uF 47pF 0 luF 0 047uF 120pF 120pF 0 047uF 220pF 68pF 68pF 1008 0 047uF 0 04708 0 OluF 56pF 47pF 68pF 0 OluF 0 001uF 150pF 10 0 047uF 39pF 39pF 10uF 10 UJ UU 2 C3 x 3 zj UJ CD gt lt BT RIS CH CH CH CH CH CH CH GRM40F 103250 GRM40F473250PT GRM40CH220J50PT GRM40F473Z50PT GRM40F 103Z50PT GRM40F 103Z50PT GRM40F 473Z50PT GRM40F 103250 GRM40F 103Z50PT GRM40B102M50PT GRM40F 103Z50PT GRM40B102M50PT GRM40F473Z50PT GRM40F 104Z25PT GRM40F 103250 GRM40F 103Z50PT UATLOX1O4K L45AE UAT10X683K L45AE GRM40B103M50PT GRM40F 103250 GRM4OF 103250 GRM40F 103Z50PT GRM40F 103Z50PT GRM40F473250PT GRM40F 103250PT GRM40F 103Z50PT GRM40F473250PT GRM40CH470J50PT GRM40F 104Z25PT GRM40F473Z50PT GRM40CH121J50PT
133. M RES 3 9 1W 5 ERX 1SJ3R3P J22309020 R 5013 METAL FILM RES 3 3 Jf 5 ERX 1SJ3R3P J22309020 R 5014 METAL FILM RES 3 3 1W 5 ERX 1SJ3R3P J22309020 R 5015 METAL FILM RES 3 3 54 ERX 1SJ3R3P 22309020 R 5016 METAL FILM RES 39 JW 5 ERG 3SJ390P 22359022 R 5017 METAL FILM RES 39 JW 5 ERG 3SJ390P J22359022 R 5018 METAL FILM RES 68 2W 5 BRG 2SJ680P 22339016 R 5019 CARBON FILM RES 220 1 68 5X RDI6TPJ221 J07225221 R 5020 METAL FILM RES 5 6 1W 5 ERX 1SJ5R6P 122309030 R 5021 CARBON FILM RES IK 1 44 5 RD14TJ102 301245102 R 5022 CARBON FILM RES 10K 1 6N 5 RD16TPJ103 J07225103 5 6 n U U FT 840 Technical Supplement PA Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR 5023 CARBON FILM RES 12K 1 6N 5 RDI6TPJ123 J07225123 5024 CARBON FILM RES 10K 1 6N 5 RDI6TPJIO3 J07225103 R 5025 CARBON FILM RES 10K 1 6N 5 RDIGTPJ103 J07225103 R 5026 CARBON FILM RES 2 7K 1 68 5 RDI6TPJ272 J07225272 amp 5027 CARBON FILM RES 10K 1 6N 5 RD16TPJ103 J07225103 5028 CARBON FILM RES 470K 1 68 5 RD16TPJ474 J07225474 R 5029 CARBON FILM RES 4 7K 1 69 5 RD16TPJ472 J07225472 R 5030 CARBON FILM RES 1 6W 5 RDISTPJ102 07225102 5040 CARBON FILM RES 18 1 24 5 RD12TJ180 01275180 5041 CARBON FILM RES 18 1 28 5 RD12TJ180 01275180 115001 RELAY DC12V 04 1117 M1190095 T 5001 COIL 4 1 2001F FR6 L0021351 T 5002 COIL 3A6 RIB4X7 L0021969 T 5003 COIL D12A 1810 L002
134. M40B103M50PT K22170817 C 6552 CHIP CAP 50 CGRM40B103M50PT K22170817 C 6553 CHIP CAP 50V B GRM40B103M50PT K22170817 C 6554 CHIP CAP 0 0luF 50 GRM40B103M5OPT K22170817 C 6555 CHIP CAP 0 0luF 50 B GRM40B103M50PT K22170817 C 6556 CHIP CAP 0 0022uF 50V 408222 50 K22170809 C 6557 CHIP CAP 0 OluF 90V B GRM40BIO3MSOPT K22170817 C 6558 CHIP CAP 0 0112 50 GRMAOBIO3MSOPT K22170817 6559 TANTALUM CHIP 0 47uF 25V TESVA1E474M1 8R K78140009 C 6560 CHIP CAP 0 0luF 50V GRM40B103M50PT K22170817 C 6561 CHIP CAP 0 0luF 50V GRM40B103M50PT K22170817 6562 CHIP 0 0142 50V GRM40B103M50PT K22170817 6563 CHIP CAP 0 012 50V KGRM40B103M50PT K22170817 6564 CHIP 0 0luF 50 KGRM40B103M50PT K22170817 C 6565 CHIP CAP 0 0luF 50 GRM40B103M50PT K22170817 C 6566 CHIP CAP 0 02 50 GRM40B103M50PT K22170817 C 6567 CHIP CAP 0 0luF 50V B GRM40B103M50PT K22170817 C 6568 CHIP CAP 0 0luF 50V GRM40B103M50PT K22170817 C 6569 CHIP CAP 0 0142 50 GRM40B103M50PT K22170817 C 6570 CHIP CAP 33pF 90V RH GRMAORH330J50PT K22170523 C 6571 CHIP CAP 33pF 50V RH GRMA4ORH330JS0PT K22170523 C 6573 CHIP CAP 0 047uF 50V GRM40F473250PT K22171008 C 6574 AL ELECTRO CAP 330uF 167 RE2 16V331M K40129043 6575 CHIP CAP 0 0142 50V B GRM40B103M50PT K22170817 C 6576 CHIP CAP 0 0 50 GRM40B103M50PT K22170817 C 6577 AL ELECTRO CAP 10uF 50V R
135. Main Unit Circuit Diagram UNIT F3248000A 8 508 5210 AGP2003 2 AGP2003 00127 O 25401 430p 58 5 5 agra RL amp ZOS wg 8641 AGP2003 00129 E AGP2003 0 12 2 on Q sa 5 8 35 8 JP5403 19311501 NOTE CAPACITOR VALUES ARE IN aF SOV D CAPACITOR VALUES ARE TANTALUM INDUCTOR VALUES ARE IN H L UNLESS OTHERWISE NOTED 5 55 Be R6401 n en 47 172 B 06402 HSM2838 DTC114EK aa 5 d 86402 lt co 47 1420 Downloaded Sm Amateur Radio Directory 55 6403 gt i 47 1 2W www hamdirectory info so 06403 HSM283B8 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tok 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 05404 HSM2838 FT 840 Technical Supplement R MAIN UNIT F3248000A E RLG410 RLG412 12 AGP2003 0 12 AGP2003 Dci2v 775 SN m h 1 a 1 735 l amp 55 JIG ist 55 1 27
136. ON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 enquiries mauritron co uk 4 i 4 i 1 i i i i 7E 3 Parts List REF MFGR S DESIG VALUE WV TOL FC 10 option DESCRIPTION INTERFACE UNIT PCB With Components Printed Circuit Board BH1001 BATTERY HOLDER C2 C2 UC2 C2 C2 C2 C2 CZ C Cac cs c 1001 CERAMIC CAP 1002 CERAMIC CAP 1003 CERAMIC CAP 1004 CERAMIC CAP 1005 CERAMIC CAP 1006 CERAMIC CAP 1007 CERAMIC CAP 1008 CERAMIC CAP 1009 CERAMIC CAP 1010 AL ELECTRO CAP 1011 CERAMIC CAP 1012 CERAMIC CAP 1013 AL ELECTRO CAP 1014 CERAMIC CAP 1015 AL ELECTRO CAP 1016 CERAMIC CAP 1017 AL ELECTRO CAP 1018 CERAMIC CAP 1019 AL ELECTRO CAP 1020 CERAMIC CAP 1021 CERAMIC CAP 1022 CERAMIC CAP 1023 AL ELECTRO CAP 1024 AL ELECTRO CAP 1025 AL ELECTRO CAP 1026 AL ELECTRO CAP 1001 DIODE 1002 DIODE 1003 DIODE 1004 DIODE 1005 DIODE 1006 DIODE 1007 DIODE 1008 DIODE 1009 DIODE 1010 DIODE 1011 DIODE 1013 DIODE 1005 CONNECTOR 1007 CONNECTOR 1008 CONNECTOR 1009 CONNECTOR 1010 CONNECTOR 220pF 50V 0 047uF 50 0 0474 50 0 047uF 50V 0 047uF 50 0 0470 50 0 0474 50 0 047uF 50 Q 047TuF 50 10uF 50V
137. ONNECTOR SC25 03NS P0090622 J 1014 CONNECTOR SC25 02WS P0090621 J 1015 CONNECTOR 3 03097 02 P1090296 J 1016 CONNECTOR SC25 02WS P0090621 J 1017 CONNECTOR SC25 04WS P0090623 J 1018 CONNECTOR SC25 05WS P0090624 J 1019 CONNECTOR SC25 06WS P0090625 J 1020 CONNECTOR SC25 11WS P0090630 J 1021 CONNECTOR SC25 02WS P0090621 J 1022 CONNECTOR S025 03WS P0090622 J 1023 CONNECTOR HLJ0521 01 110 P1090593 J 1024 CONNECTOR S 03097 04 P1090354 J 1025 CONNECTOR S Q3097 01 P1090348 5A 12 FT 840 Technical Supplement MAIN Unit REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR J 1026 CONNECTOR 3022 04B P0090523 J 1027 CONNECTOR 3022 04B 0090523 J 1028 CONNECTOR 3022 04B P0090523 J 1029 CONNECTOR 3022 04B P0090523 J 1030 CONNECTOR 5 03097 01 1090348 J 1031 SBRK 25 1 1090812 L 1001 2Tull 02 270 11790063 L 1002 M RFC 2Tul LAPO2TA2T0K 11790063 L 1003 lmH LAL03VB102K L1790164 L 1004 M RFC 560uH LALO3VB561K L1790161 L 1005 39uH LAPOZTA390K L1790065 L 1006 39uH 02 390 11790065 L 1007 4 LAPOZTA4RTK L1790054 L 1008 M RFC 12uH LAPOZTA120K 11790059 L 1009 12uH LAPOZTA120K L1790059 L 1010 M RFC 15uH LAPOZTA150K L1790060 L 1011 M RFC 15uH 2 150 11790060 L 1012 M RFC 1 2uH LAPO2TA1R2K L1790047 L 1013 COIL 6 5 5 000 6UEW R 10021833 L 1014 6 8uH LAPOZTACR8K L1790056 L 1015 M RFC 18u
138. P CAP 6436 CHIP CAP 6437 CHIP CAP 6401 SURGE ABSORBER 6402 DIODE 6403 DIODE 6404 DIODE 6405 DIODE 6406 DIODE 6407 DIODE 6408 DIODE 6409 DIODE 430pF 200pF 100pF 430pF 200pF 100pF OluF OluF OluF Oluf OluF OluF OluF OluF OluF OluF OluF OluF OluF OluF 0 OluF 0 OluF 0 OluF 0 OluF 0 OluF 0 OluF 0 OluF 0 O1uF 0 OluF 0 OluF 0 OluF 0 OluF 0 OluF 0 OluF 0 OluF 0 OluF IKV IKY IKV 1 50V 50V 50V 50V 50V 50 50 50 50 50V 501 50V 50V 50V 50V 50V 50 50V 90V 50V 50V 50V 50V 50V 50V 50V 50V 50V 50 50V 50V UU UJ UJ UJ UD CO UU UJ UJ QU UJ UJ CO UU UU UJ cg g UJ For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk FT 840 Technical Supplement DMLZ 431J10 DML2 201J10 DML2 101J10 DMLZ 431J10 DML2 20110 DMLZ 101J10 GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B 103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50PT GRM40B103M50
139. PT GRM40B103M50PT GRM40B103M50PT GRM408103M50PT GRM40B103M50PT DSA 301LA HS42838 TR HSM2838 TR HSM2838 TR HSM2838 TR HSM2838 TR HSM2838 TR HSM2838 TR HSM2838 TR YAESU P N VERS CA1203001 F3248000A K30309018 K30309026 K30309040 K30309018 K30309026 K30309040 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 K22170817 09000371 G2070108 G2070108 G2070108 G2070108 G2070108 G2070108 62070108 02070108 7 13 10 option 14 REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS J 6401 CONNECTOR TMP J01X A2 P1090255 JP6401 WIRE ASSY 19206154 JP6402 WIRE ASSY 19206153 JP6403 WIRE ASSY 79311501 L 6401 2 511502 OPVF R L0021949 L 6402 COIL 2 511502 OPVF L0021949 L 6403 COIL 4 5T15D2 OPVF L0021950 L 6404 COIL 6 511904 OPVF R L0022064 L 6405 COIL 1 512001 2UEW R L0022049 L 6406 COIL 2 550 T 80 2 10021978 6407 2 550 80 2 10021978 L 6408 2 550 80 2 10021978 L 6409 22uH LALO3TA220K L1790099 L 6410 RFC 22uH LALO3TA220K L1790099 Q 6401 TRANSISTOR DTC114EK 196 G3070002 Q 6402 TRANSISTOR 114 196 G3070002 Q 6403 TRANSISTOR DTC114EK 796 63070002 Q 6404 TRANSI
140. PT K22140811 C 2508 TANTALUM CHIP CAP 4 7uF 6 3V TEMSVA0J475M 8R K78080017 C 2509 CHIP CAP 0 OluF 50 GRM40B103M50PT K22170817 2510 CHIP CAP 560pF 50V GRM40B561M50PT K22170802 C 2511 CHIP CAP 47pF 50V KGRM40CH470J50PT K22170227 2512 CHIP CAP 820pF 50V GRM40B821M50PT K22170804 C 2513 CHIP CAP 120pF 50V CH GRM40CH121J50P7T K22170237 2514 CHIP CAP 560pF 50V GRM40B561M50PT K22170802 2515 CHIP CAP 0 OluF 50V F GRM40F103250PT K22171004 C 2516 CHIP CAP 0 O1uF 50V GRM40F103250PT K22171004 J 2501 CONNECTOR 3022 05B P0090594 J 2502 CONNECTOR 3022 04B P0090523 L 2501 M RFC 220uH LAPO2TA221K L1790074 L 2502 RFC 220uH LAPO2ZTA221K L1790074 L 2503 RFC 180uH 2 181 11790073 L 2504 RFC 18094 LAPO2TA181K L1790073 Q 2501 IC FQ7920 CF77399FS 61090952 Q 2502 TRANSISTOR 2SC2712GR TE85R 033271276 Q 2503 TRANSISTOR 2SC2712GR TE85R 033271270 R 2502 RES 10K 1 10W 5 1 10 103J J24205103 R 2503 CHIP RES 22 1 10W 5 0 2234 424205223 R 2504 CHIP RES 22K 1 10W 5 RMC1 10T 223J J24205223 R 2505 CHIP BES 100 1 10W 5 1 107 101J J24205101 R 2506 CHIP RES 470 1 10W 5 RMC1 10T 471J J24205471 R 2507 CHIP RES 100K 1 104 54 0 104J J24205104 R 2508 CHIP RES 1 104 5 RMC1 10T 102 424205102 2509 CHIP RES 1M 1 104 5 10 105J J24205105 RB2501 BLOCK RES RKM10LG103 RKMLOLG103 J40900170 SHIELD CASE R0131630 For Service Manuals Contact M
141. RBON FILM RES 39 1 44 5 RD14TPR390J J05245390 R 2199 CHIP RES 10K 1 10W 5 10 103J J24205103 R 2200 CHIP RES 1 108 5 RMC1 10T 102 124205102 R 2201 CARBON FILM RES 470 1 68 54 RDI6TPJ471 407225471 R 2202 RES 2 2 1 10H 5 RMC1 10T 222J J24205222 PF F 50 19 840 Technical Supplement LOCAL Unit R D CO CU QU CU UU CU CU CO CU CU LU CU QU CO R R R CO CO CU 3 3 3 T EF MFGR S DESIG VALUE W TOL DESCRIPTION YAESU P N VERS ADDR 2203 CARBON FILM RES 2 2K 1 69 5X RDI6TPJ222 J07225222 2204 CHIP RES 0 1 104 5 1 107 000 424205000 2205 CHIP RES 1 10W 5 107 102 424205102 2206 CHIP RES 1K 1 104 5 RMCI 10T 102J J24205102 2207 CHIP RES 1 104 5 1 10 102 424205102 2208 CHIP RES 1 10W 5 RMC1 10T 102J 424205108 2209 CHIP RES 0 1 104 5 RMC1 10T 000J J24205000 2210 CARBON FILM RES 3 9 1 44 5 RD14SJ3R9 402245399 2211 CHIP RES 10K 1 10W 5 10 103J J24205103 2212 CHIP RES 47 1 104 5 RMCI IOT 470J 24205470 2213 METAL FILM RES 8 2 2W 5 ERX 2SJ8R2P J22339020 2214 CHIP RES 0 1 104 5 RMCI 10T 000J J24205000 2215 CHIP RES 0 1 104 5 RMCI I0T 000 24205000 2216 CHIP RES 0 1 108 5 RMC1 10T 000J J24205000 2217 CHIP RES 0 1 10 5 10 000J J24205000 2218 CHIP RES 10K 1 10W 5 RMC1 10T 103J J242
142. RMC1 10T 103J RMC1 10T 224J RMC1 10T 123J 1 107 102J RMC1 10T 472J 1 10 222J RMC1 10T 105J RMCI 10T 473J RMCi 10T 105J RMC1 10T 103J RMC1 10T 104J 1 10 153J RMC1 10T 154J 10 104J RMC1 10T 472J RMC1 10T 104J RMCI 10T 222J RMC1 10T 472J RMC1 10T 103J RMC1 10T 332J RMC1 10T 563J RMC1 10T 822J RMC1 10T 4734 RMCI 10T 153J RMC1 10T 471J RMC1 10T 563J 1 10 104J RMC1 10T 103J RMC1 10T 102J RD14SJ5R6 RMCI 10T 104J RMC1 10T 564J RMC1 10T 104J RMC1 10T 224J RMC1 10T 332J RD16TPJ104 RMC1 10T 223J RMC1 10T 473J RMC1 10T 102J RMC1 10T 103 RMC1 10T 104J RMC1 10T 000J MAIN YAESU P N VERS J24205222 J24205225 J24205104 J24205102 J24205000 124205472 424205221 124205472 24205123 24205823 124205103 424205224 24205123 124205102 24205472 124205222 124205105 124205473 24205105 124205103 24205104 124205153 24205154 24205104 24205472 124205104 224205222 24205472 124205103 124205332 124205563 124205822 24205473 24205153 124205471 24205563 24205104 24205103 24205102 102245569 124205104 124205564 24205104 124205224 24205332 107225104 124205223 224205413 124205102 124205103 124205104 124205000 Unit ADDR 5A 19 MAIN Unit REF VU CO 00 UO ZJ CO CO CO CU CO CO VO UJ CU CO cO QU cO cO CU CU UO ZJ Z cO vU CO CO 5A 20 1237 CHIP RES 1
143. S ARE iN a NO AF 2 For Service Manuals Contact RESISTOR VALUES ARE IN MAURITRON TECHNICAL SERVICES ie ee 8 Cherry Tree Rd Chinnor OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk ruo tu Obverse View of Component Side Obverse View of Solder Side a Obverse View of Component Side Obverse View of Solder Side Obverse View of Component Side Obverse View of Solder Side 5J 1 FT 840 Technical Supplement Unit Parts List REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR VE UNIT PCB with Components 1 0 79206309 51304001 Printed Circuit Board F3394102 JP7101 WIRE ASSY T9206309 JP7102 WIRE ASSY T9206312 VR7101 POT 10KC 10KB RK1242210 J62800120 REF MPGR S DESIG VALUE WY TOL DESCRIPTION YAESU P N VERS ADDR VR B UNIT xxx PCB with Components 551305001 Printed Circuit Board F3394103 JP7202 WIRE ASSY 19206308 VR7201 POT 10 10 RK1242210 J62800119 REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR VR C UNIT PCB with Components W 0 79206316 CS1306001 Printed Circuit Board P3394 104 JP7301 WIRE ASSY 19206305 JP7302 WIRE ASSY 19206316 VR7301 10KB RK0971110 J60800190 REF MFGR S DESIG VALUE TOL DESCRIPTION YAESU P N VERS ADDR VR D UNIT xxx PCB with Components CS1307001 Print
144. STOR DTC114EK 796 3070002 Q 6405 TRANSISTOR DTC114EK 796 63070002 Q 6406 TRANSISTOR DTC114EK 196 63070002 Q 6407 TRANSISTOR DTCII4EK 196 63070002 Q 6408 TRANSISTOR DTC114EK 196 63070002 Q 6409 TRANSISTOR DTC114EK 196 63070002 Q 6410 TRANSISTOR DTCil4EK 196 63070002 Q 6411 TRANSISTOR DTC114EK 796 63070002 Q 6412 TRANSISTOR DTClI4EK 196 63070002 Q 6413 TRANSISTOR DTC114EK 196 63070002 Q 6414 TRANSISTOR DTC1148K 196 63070002 R 6401 CHIP RES 47 1 24 5X 1 2 470 424275470 R 6402 RES 47 1 2W 5 RMC1 2 470JCTP J24275470 R 6403 CHIP RES 47 1 24 5 RMC1 2 470JCTP 124275470 R 6404 CHIP RES 41 1 24 5 1 2 4TOJCTP 424215470 R 6405 RES 47 1 ZN 5 2 470JCTP 424275470 R 6406 RES 47 1 24 5 1 2 470JCTP 124215470 R 6407 CHIP RES 47 1 24 5 1 2 470JCTP 24215470 R 6408 RES 47 1 24 5 RMC1 2 470JCTP J24275470 R 6409 CHIP RES 47 1 2W 5 RMC1 2 4TOJCTP J24275470 R 6410 CHIP RES 47 1 2H 5 1 2 4TOJCTP 124215470 R 6411 RES 47 1 2W 5 RMCI 2 470JCTP 24275470 R 6412 RES 47 1 24 5 RMC1 2 47OJCTP J24275470 R 6413 CHIP RES 47 1 24 5 2 4TOJCTP 424275470 R 6414 RES 47 1 2W 5 RMC1 2 470 424275470 810401 RELAY DC12V 2003 1190075 816402 RELAY DC12V AGP2003 M1190075 RL6403 RELAY DC12V AGP2003 1190075 RL6404 RELAY DC12V AGP2003 M1190075 RL6405 RELAY DC12V AGP2003 M1190075 FT 840 Technical Supplement REF MFGR S DESIG V
145. THERWISE NOTED 523091 79206303 I 1 1 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk Ut 83003 RIC Nai Pin 64 LC7582 Q3001 FT 840 Technical Supplement i 722997 HR B 03 5 Obverse Vie COMMON s Parts Layout aug pesin SOV 053001 FTD 11768 62080570 CAPACITOR VALUES ARE TANTALUM INDUCTOR VALUES ARE iN M RESISTOR VALUES ARE M 1 10W UNLESS OTHERWISE NOTED CAPACITOR VALUES ARE IN NOTE m emm nii See Se Ob Downloaded Amateur Radio Directory DISPLAY Unit www hamdirectory info EER c E X VESA BEBE zl 3 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Chinnor Oxon 9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries 2 mauritron co uk a 9492539259 722820222529524539 Fd 24 S 4 f 4 2 o E N 49 9599592322329232532522595 909945450
146. W BLUE Viewed From A Side 7F 1 FT 840 Technical Supplement MH 1s option Exploded View 58000533 58000626 FRONT NAME PLATE GRILL 58000629 FRONT CASE 58100063 SLIDE SWITCH PTT 58100187 SWITCH 58000628 SWITCH BUTTON S 8000571 PTT KNOB 58000670 58100146 UNIT Vo 98100062 ELEMENT CURL CORD S 8000630 REAR CASE S 8100186 SLIDE SWTCH TONE S 8000672 NUT 58000631 REAR NAME PLATE For Service Manuals Contact 58000506 MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor MSS Oxon OX9 4QY Tel 01844 351694 01 Email anquiries mauritron co S 8000649 58000671 SCREW SCREW Non designated parts are available only 8s part of a designated assembly 7F 2 FT 840 Technical Supplement option Specifications Type Dynamic Impedance 6000 30 at 1kHz Frequency Response 100Hz 15kHz 6dB Sensitivity T5dB at kHz 0dB 1V 0 1Pa Directivity Pattern Unidirectional teardrop Switches Top PTT PTT lock Scan UP DOWN and FAST Bottom Audio Tone Response 3 positions Position 1 full range Position 2 5dB at 100Hz Position 3 10dB at 100Hz Dimensions Base 98x160x165mm WHD Microphone diameter 40 5 x 210mm Weight Base 630g Microphone 290g 10 10 dB 20 dB 30 40 dB gt SHH FR
147. ar panel Preset VR1004 fully clockwise and adjust T1001 T1008 and T1010 T1012 in suc cession several times for peak AF output or S meter indication adjust SG level as neces sary to keep meter approximately mid scale 1st Mixer Balance C Preset VR1003 fully clockwise then in LSB mode tune to the internal heterodyne around 15 310 MHz and adjust VR1003 alternately several times for a null in AF output FT 840 Technical Supplement Alignment S Meter Full Scale O Inject a 100 dBu signal at 14 200 0 MHz next adjust VR 1002 on the Main Unit so the meter deflects to the S9 60 dB marker on the S meter Scale IF Gain Inject a 8 signal at 14 200 0 MHz to the antenna jack and adjust VR 1004 for an 5 1 meter deflection Squelch Threshold In the USB mode with no signal at the antenna jack set the SQL control to the 10 o clock position and adjust 1005 so that the squelch just closes i NB CJ Inject a 20 4 signal at 14 200 0 MHz then connect a DC voltmeter to TP1001 Press the NB button then adjust T1022 and 11023 alternately several time for minimum indication on the voltmeter Transmitter Connect the 50 2 dummy load to the an tenna jack for all procedures Refer to the Main Unit Alignment Diagram on page 3 8 for loca tion of components PA Unit Idling Current CJ Adjust the RF PWR and MIC controls fully cow min Connect DC Ammeter to TP5001 and TP5002
148. componentsare installed at the factory by a series of robots The first one places a spot of adhesive resin at the location where each part is to be installed and later robots handle and place parts using vacuum suction For single sided boards solder paste is ap plied and the board is then baked to harden the resin and flow the solder For double sided boards no solder paste is applied but the board is baked or exposed to ultra violet light to cure the resin before dip soldering In our laboratories and service shops small quantities of chip components are mounted manually by applying a spot of resin placing them with tweezers and then soldering by very small dual streams of hot air without physical contact during soldering We remove parts by first removing solder using a vacuum suction iron which applies a light steady vac uum at the iron tip and then breaking the adhesive with tweezers The special vacuum soldering desoldering equipment is recommended if you expect to do a lot of chip replacements Otherwise it is usually possible to remove and replace chip components with only a tapered temperature controlled soldering iron a set of tweezers and braided copper solder wick Soldering iron temperature should be less than 280 C 536 P Service Manuals Contact MAURITRON TECHNICAL SERVICES g Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 01 844 352554 Email enquiries mauritron co uk
149. d Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk F FT 840 Technical Supplement DDS 1 Unit Circuit Diagram DDS 1 UNIT NO 25 F3335101 02502 250271268 t 12503 12504 180 68250 RKMIOLG O3 2509 2505 0 0 B 470 i RESISTOR VALUES ARE IN 2 14109 CAPACITOR YALUES ARE IN zF SOV 02503 C 55v TY CAPACITOR VALUES ARE TANTALUM i 28C2712GR NOUCTOR VALUES ARE IN H UNLESS OTHERWISE NOTED l l Obverse View of Component Side Obverse View of ChipSide Coilector Pin 23 Emitter FQ7920 256271268 LG Q2501 Q2502 2503 5C 1 FT 840 Technical Supplement DDS 1 Unit Parts List REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR 005 1 UNIT xxx PCB with Components 1060001 Printed Circuit Board F3335101 C 2501 CHIP CAP 0 29V GRM40B104M25PT K22140811 C 2502 CHIP CAP 0 luF 25V GRM40B104M25PT K22140811 C 2503 TANTALUM CHIP 4 7uF 6 TEMSVAOJ475M 8R K78080017 C 2504 TANTALUM CHIP CAP 4 7uF 6 TEMSVA0J475M 8R K78080017 2505 CHIP CAP 100pF 50V GRM40CH101J50PT K22170235 2506 CHIP CAP 0 O1uF 50V GRM40B103M50PT K22170817 C 2507 CHIP CAP 0 luF 25V GRM40B104M25
150. den prob lem occurs during normal operation it is likely due to component failure realignment should not be done until after the faulty com ponent has been replaced We recommend that servicing be performed only by authorized Yaesu service technicians experienced with the circuitry and fully equip ped for repair and alignment So if a fault is suspected you should contact the selling dealer for instructions regarding repair Auth orized Yaesu service technicians have the lat est modification information and realign all circuits and make complete performance checks to ensure compliance with factory spe cifications after replacing faulty components Those who do undertake any of the follow ing alignments are cautioned to proceed at their own risk Problems caused by unauthor ized attempts at realignment are not covered by the warranty policy Also Yaesu must re serve the right to change circuits and align ment procedures in the interest of improved performance without notifying owners Under no circumstances should any align ment be attempted unless the normal function and operation of the transceiver are clearly understood the cause of the malfunction has been clearly pinpointed and any faulty com ponents replaced and the need for realign ment determined to be absolutely necessary Alignment The following test equipment and thor ough familiarity with its correct use is neces sary for complete realignment Co
151. ed Circuit Board F3394105 VR7401 POT 10KB RK0971110 J60800191 5J 3 FT 840 Technical Supplement Notes For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk FT 840 Technical Supplement Circuit Diagram TERREA ER n E ISW A UNIT NO 91XX 13206923 20691 C310 F3394106 pu 056 E ius pe VALUES AER IN xF SOV S DER 2002 sw B UNIT 92 3394107 59201 59203 5921 44030065 0300 5 SW D UNIT NO S4XX F3393102 429401 13206317 S 59403 N5090047 5090047 ct 59404 5090047 59405 59401 5090047 NS090047 Fu Obverse View of Component Side Obverse View of Solder Side SW C UNIT 0 93 F3393101 pL 930 9302 59303 59304 1 59305 NS090047 NS090047 NS090047 5090047 45090047 c EI pn O j E 59309 59319 39311 69312 85090047 85090047 5090047 5090047 SH pese 59308 NS090047 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Trae Rd Chinnor Oxon 9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries maur
152. herry Tree Rd Chinnor _ 9 4 Tel 01844 351694 01844 352554 Obverse View of Component Side Email enquiries mauritron co uk FT 840 Technical Supplement Downloaded Amateur Radio Directory pee LPF UNIT 0 40XX RN 4002 RL4002 10021106 082013 F2948000A pop o 2 I 5 28 www hamdirectory info al w S GP26 7 3 4582185 reri 43 29 5 559 5 aS 500 a 329 2 a P4001 4004 ez lite NUN 12004 462013 10021233 OCI2N in td i 64012 gt 2 585 s Ez 283 an sony 352 E I bo 135 32200 517 14005 2020618 Ld ocv alr 38 K 19206311 m 6 3 PEE 1 al 28 2 p UN ao i 285 coU 23 E 36s 52 59 1 T 588 soov se 3 r rt e 5 e gm 275 29 gt 407 L oca 10021408 M 4 4 Je 2008 Sard 64023 885 lt 462013 i 8982 110 soov s 2299 2612 7 IM RL4010 462013 2 3 855 L002
153. hoto 10 O Using your thumb and forefinger grasp the outer ridges of the connector and lift up the locking clamp The pilot lamp leads can now be removed from the connector Connector J1031 To insert the new lamp simply install the leads into J1031 press the locking clamp shut and insert the bulb gently into the mounting insert as before For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 01844 352554 Email enquiries mauritron co uk A A A A UU U M 3 840 Technical Supplement Notes 2 4 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Trea Rd Chinnor Oxon OX9 4QY Tet 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk FT 840 Technical Supplement The 840 is carefully designed to allow the knowledgeable operator to make nearly all adjustments required for various station con ditions modes and operator preferences sim ply from the controls on the front and rear panels without opening the case of the trans ceiver These adjustments plus certain inter nal settings are described in the FT 840 Operating Manual The following procedures cover the some times critical and tedious adjustments that are not normally required once the transceiver has left the factory However if damage occurs and some parts are subsequently replaced re alignment may be required If a sud
154. ide In most cases one side has only chip components and For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk the other has either a mixture of both chip and leaded component trimmers coils electro lytic capacitors packaged ICs or leaded components only While we believe the technical information in this manual is correct Yaesu assumes no liability for damage that may occur as a result of typographical errors that may be present Your cooperation in pointing out any inconsis tencies in the technical information would be appreciated Yaesu Musen reserves the right to make changes in this transceiver and the alignment procedures in the interests of technological improvement without notification of the own ers 1 1 FT 840 Technical Supplement Chip Component Information The diagrams below indicate some of the distinguishing features of common chip com ponents Capacitors Unit mm 0 45 0 60 0 35 0 50 0 65 0 95 Ty p RMC 1 10W 1 16W Resistors Marking 100 222 473 S E 1 25 0 45 T F 1 16 0 8 0 45 INDICATED LETTERS 8 0 Examples 100 100 222 2 2 0 473 47 FT 840 Technical Supplement Chip Component Information Replacing Chip Components Chip
155. itron co uk Obverse View of Solder Side 840 Technical Supplement 71 19206314 SW C UNIT NC 93XX 3393101 JP3101 13206323 C810 OF 59203 N4096086 9204 1 090086 BAND OWN 79205315 gt 59 02 58103 44090086 44090085 I ac s MEN 59301 59302 53303 59305 59307 l NS030047 NS090047 5030047 NS090047 5030047 NS090947 N5090047 vox p po os l i RUIT hee Z 1 rura 59308 59309 59310 59311 53312 59313 59314 5080047 450930027 NS090047 NS030047 45090047 N 050047 NS090047 c c3 i o1 TO o o 07 vFO w 78 N gt vF0 54315 59316 45090047 5090047 1 a I I l JP9302 79206317 uu RE DER T E E 4 v5 i 59403 59405 5090047 5990047 oh il AMZN LOCK Sapa m u B Qk a L Obverse View of Component Side Obverse View of Solder Side Unit SW D Unit Parts Layout
156. ly cew minimum 1 FT 840 Technical Supplement Alignment AFas required MIC fully cw maximum CJ SHIFT to 12 0 clock After completing one step read the follow ing step to determine whether the same test equipment will be required If not remove the test equipment except dummy load and watt meter if connected before proceeding Correct alignment requires that the ambient temperature be the same as that of the trans ceiver and test equipment and that this tem perature be held constant between 20 and 30 C 68 86 P If the transceiver is brought into the shop from hot or cold air it should be allowed some time for thermal equalization with the environment before alignment Alignments must only be made with oscil lator shields and circuit boards firmly affixed in place Only one extender board should be installed at a time for access to the board being aligned Also the test equipment must be thor oughly warmed up before beginning Note Signal levels in dB referred to in alignment are basedon 0 0 5 WV Local Unit Refer to the Local Unit Alignment Diagram on page 3 7 To prevent PLL uniock from inter fering with the Local Unit alignment process connect TP2004 to ground Remember to dis connect TP2004 when finished with alignment Reference Oscillator CJ Connect the frequency counter to JP2001 and the RF millivoltmeter to 2
157. mW Circuit Diagram WHITE D SHIELD SHIELD JI RED FT 840 Technical Supplement YH 77ST option YH 77ST Lightweight Headphones For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron co uk 7H 1 Notes For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351894 Fax 01844 352554 Email enquiries maurion co uk 7H 2 840 Technical Supplement
158. nuals Contact 2SC2712GR LG 02601 MAURITRON TECHNICAL SERVICES Q2602 2603 8 Cherry Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk Downloaded by Amateur Radio Directory www hamdirectory info FT 840 Technical Supplement DDS 2 Unit Parts List REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR DDS 2 UNIT A 5 8 Cherry Tree Rd Chinnor Printed Circuit Board S F3334101 Email enquiries mauntron co uk 2601 CHIP 0 luf 25V GRM40B104M25PT K22140811 C 2602 CHIP CAP 0 luF 25V GRM40B104M25PT K22140811 2603 TANTALUM CHIP CAP 4 7uF 6 TEMSVA0J475M 8R K78080017 2604 TANTALUM CHIP 4 7uF 6 3V TEMSVA0J475M 8R K78080017 2605 CHIP CAP 100pF 50V CH GRM40CH101J50PT K22170235 C 2606 CHIP CAP 0 OluF 50V GRM40B103M50PT K22170817 2607 CHIP CAP 0 luf 25V B GRM40B104M25PT K22140811 C 2608 TANTALUM CHIP CAP 4 6 3V TEMSVAOJ475M 8R K78080017 C 2609 CHIP CAP 0 OluF 50V GRM408103M50PT K22170817 C 2610 CHIP CAP 220pF 50V CH GRM40CH221J50PT K22170243 C 2611 CHIP CAP 56pF 50V CH GRM40CH560J50PT K22170229 2612 CHIP 330pF 50V CH GRM40CH331J50PT K22170247 2613 CHIP CAP 180pF 50V CH GRM40CH181J50PT K22170241 C 2614 CHIP CAP 180pF 50V CH GRM40CH181J50PT K22170241 C 2616 CHIP CAP 0 OluF 50V F GRM40F 103Z50PT K22171004 C 2618 C
159. plement For Service Manuals Contact 8 Cherry Tree Rd Chinnor MAIN Unit Oxon OX9 4QY Tek 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk REF MFGR S DESIG VALUE WV TOL DESCRIPTION YAESU P N VERS ADDR C 1212 AL ELECTRO CAP luF 50V 50V010M4X7TR2 K46170030 C 1213 CHIP 0 04742 50V GRM40F473Z50PT K22171008 1214 AL ELECTRO 2 2uF 50V 90V2R2MAXTTR2 K46170031 C 1215 CHIP CAP 100pF 50V CH GRM40CH101JS0PT 22170235 C 1216 CHIP CAP 560pF 50V GRM40B561M50PT K22170802 C 1217 AL ELECTRO CAP 470uF 10 10V471M8X11TR5 K46100006 1218 CHIP CAP 0 047uF 50 KGRM40F473Z50PT 22171008 1219 CHIP 0 0107 50 KGRM40F103250PT K22171004 C 1220 CHIP CAP 0 50 GRM40F103Z50PT K22171004 C 1221 CHIP CAP 0 012 50 KGRM40F103Z50PT K22171004 C 1222 CHIP 0 0luF 50 GRM40F103250PT K22171004 C 1223 CHIP CAP 0 0luF 560 GRM40F103250PT K22171004 C 1224 CHIP CAP 0 50 FP GRM40F103250PT 22171004 1225 0 01uF 50V GRM40F103250PT K22171004 C 1226 CHIP CAP 22pF 50V CH GRM40CH220J50PT 22170219 C 1227 CHIP CAP 220pF 50V CH GRM40CH221J50PT 22170243 C 1228 CHIP CAP 220pF 50V CH GRM40CH221J50PT K22170243 C 1229 AL ELECTRO CAP 10uF 16V 16V100M4X7TR2 K46120004 C 1230 AL ELECTRO CAP 10uF 16V 16V100M4X7TR2 K46120004 C 1231 CHIP CAP 0 012 50 F GRMA40F103250PT K22171004 C 1232 AL ELECTRO CAP 10uF 16V 16V100MAX7TR2 K
160. rm I I j ws Dx SSS tt eae ms mE 1 9 EX area LAE CR BE E anu VAS 9 u 1 l 1 I I 1 For Service Manuals Contact 005 2 MAURITRON TECHNICAL SE VICES i 8 Cherry Tree Rd Chirlnor NR i Oxon 9 40 15858 ___ Tel 01844 351694 Fax 01844 352554 Email enquiries i 1 1 I I 1 PRO FT 840 Technical Supplement Mw ve Gitar duse jt 4 5 Hy dms oe 1 ENC ON ENC OFF IV sh BREAK IN OFF E a 1307 482 OFF Ow SIDE TONE ON 224v SIOE FONE OFF 985v TOME ENT ON TINE ENC OFF rane on De el E
161. rrection of problems caused by misalignment resulting from use of improper test equipment is not covered under the warranty policy While most steps do not require all of the equipment listed the interactions of some adjustments may require that more complex adjustments be performed afterwards Do not attempt to perform only a single step unless it is clearly isolated electrically from all other steps Rather have all test equipment ready before beginning and follow all of the steps in a section in the order they are presented Digital DC Voltmeter high Z 1 RF Millivoltmeter AF Millivoltmeter RF Standard Signal Generator w cali brated output and dB scale 0dBu 0 5 u V AF Signal Generator with calibrated out put Frequency Counter 50 Q Dummy Load 150 250 watts 16 6 Q Dummy Load 2150 W In Line Wattmeter 150 250 W 50 6 RF Attenuator gt 150 W 40 dB or coupler Alignment Preparation 6 Precautions A 50 dummy load and inline wattmeter must be connected to the antenna jack in all procedures that call for transmission except where specified otherwise Correct alignment is not possible with an antenna Except where specified otherwise the tran sceiver should be tuned to 14 200 MHz USB mode and these controls set as indicated MOX amp VOX buttons OFF 1 AGC F button ON PROC AGC F amp NB buttons OFF 501 amp RF PWR ful
162. rry Tree Rd Chinnor 9 4QY Tel 01844 351694 01844 352554 enquiries mauritron co uk FT 840 Technical Supplement R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R FT 840 Technical Supplement MFGR S DESIG 1182 CHIP RES 1183 CHIP RES 1184 CHIP RES 1185 CHIP RES 1186 CHIP RES 1187 CHIP RES 1188 CHIP RES 1189 CHIP RES 1190 CHIP RES 1191 CHIP RES 1192 CHIP RES 1193 CHIP RES 1194 CHIP RES 1195 CHIP RES 1196 CHIP RES 1197 CHIP RES 1198 CHIP RES 1199 CHIP RES 1200 CHIP RES 1201 CHIP RES 1202 CHIP RES 1203 CHIP RES 1204 CHIP RES 1205 CHIP RES 1206 CHIP RES 1207 CHIP RES 1208 CHIP RES 1209 CHIP RES 1210 CHIP RES 1211 CHIP RES 1212 CHIP RES 1213 CHIP RES 1214 CHIP RES 1215 CHIP RES 1216 CHIP RES 1217 CHIP RES 1218 CHIP RES 1219 CHIP RES 1220 CHIP RES 1221 CHIP RES 1222 CARBON FILM RES 1223 CHIP RES 1224 CHIP RES 1225 CHIP RES 1226 CHIP RES 1227 CHIP RES 1228 CARBON FILM RES 1229 CHIP RES 1230 CHIP RES 1231 CHIP RES 1232 CHIP RES 1233 CHIP RES 1234 CHIP RES VALUE 15K 4TO 56K 100K 10K 1K 5 6 100K 560K 100K 220K 3 3K 100K 22K 4TK IK 10K 100 WY TOL DESCRIPTION MC1 10T 102J MC1 10T 222J MC1 10T 225J 1 10 104J RMC1 10T 102J RMC1 10T 000 RMC1 10T 472J RMC1 10T 221 RMC1 10T 472 R R SO MC1 10T 123J MC1 10T 823J
163. rts Layout Obverse View of Component Side Obverse View of Chip Side Parts List REF MFGR S DESIG VALUE W TOL DESCRIPTION YAESU P N VERS ADDR Xxx OSC UNIT PCB with Components CA1062001 Printed Circuit Board F3392102 C 2701 CERAMIC CAP 27pF 50V UJ DD104 979UJ270J50 26171202 C 2702 CERAMIC CAP 2TpF 50V UJ DD104 979UJ270J50 26171202 J 2701 CONNECTOR 5124 04 P1090426 TC2701 TRIMMER CAP 20p VCT51E117 K91000086 X 2701 XTAL 10 48576MHz H0102990 ERR 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 01844 352554 Email enquiries mauritron cO uk 5E 1 FT 840 Technical Supplement REG Unit Circuit Diagram REG UNIT NO 29XX F3392103 02901 7805 Obverse View of Component Side Downloaded by Amateur Radio Directory www hamdirectory info HA17805P 02801 17809 02802 1154 REF MFGR S DESIG VALUE W TOL DESCRIPTION YAESU P N VERS ADDR REG UNIT PCB with Components CA1086001 Printed Circuit Board F3392103 J 2801 CONNECTOR 9210B 1 062366 T P0090990 Q 2801 IC HA17805P 61090936 Q 2802 IC L7809 G1090778 5F 1 840 Technical Supplement DISPLAY UNIT NO 30XX F3390101 Q3001 LC7 82 3002 680 B TP3002 52090570 OOK NOTE RESISTOR VALUES ARE IN 8 1710W CAPACITOR VALUES ARE IN wF SOV CAPACITOR VALUES ARE TANTALUM INOUCTOR VALUES ARE IN H UNLESS O
164. ruv E E 59 Tiv ther rodes we Lay SOL OPEN 296v 50 23v 5 MUTE OFF OW MUTE ON MUTE OFF Ov gt MODE 750 oe S x TES w AM Ei moa x Qus AM Finer iretalled OV T Wwe coe 5 AM Filter de gt MUTE ON 070 MUTE ON 070v 5 gt a gt MUTE OFF DV _ MUTE OFF p 390v 8 gies 2 92 7 0 20 AU Wars rmv 4 29 PROC QN 4287 PROC OFF 4 16v PROC ON 429v 305v x Nie B PROC ON 4 42V PROC OFF fie th 38v at PROC ON PROG OFF 7 Mv PROC ON B PROC OFF 8 am 202 201v MODE otter OV Tpiosr a 5t tal gt AM MODE oa 1068 E AM MODE Ov All cher moore 80v MODE 177v M other modes 0 gt 7 AM MODE Oy citer modes 145v 1 E MODE 6 OW weil mur 41547 needs
165. s places the transceiver in the carrier point set ting mode next select LSB mode for the first carrier point adjustment step CJ a Set the MIC control to the 12 o clock posi tion and RF PWR control fully cw max J b Key the transmitter and adjust the AF SG level to where the ALC meter indication de flects no further LPF Unit Alignment Diagram FT 840 Technical Supplement 3 5 Alignment c Adjust the MIC control for 80 W output as indicated on the in line wattmeter then adjust the SG frequency to 300 Hz and rotate the main tuning knob until a reading of 20 W is obtained Unkey the transmitter then press the FAST amp SSB button together at the same time confirm that carrier point adjustment has switched to USB by LCD indication USB USB Repeat steps c to adjust the USB carrier point then press the SSB to save the settings and return the display to normal CJ Turn the transceiver off and remove the jumper from 2003 chassis ground TP5001 eM TPS0Q AF 55023 2 5002 VR5001 Downloaded by i Amateur Radio Directory PA Unit Alignmen Diagrar www hamdirectory info ic al MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor OX9 4QY Tel 01844 351804 Fax 01844 352554 Emaul enquiries mauritron cO uk 3 6 FT 840 Technical Supplement 2013 PLL Main Loop DC voltmeter 02015
166. so that the meter deflects to the top edge of the ALC zone PO Meter Calibration With the in line wattmeter and dummy load connected to the antenna jack tune to 14 200 MHz CW mode and press the PO meter selec tor button Key the transmitter and adjust the RF PWR control for 100 watts on the in line wattmeter Then adjust VR1019 so the PO meter also indicates 100 watts Reverse ALC SWR Turndown Connect the inline wattmeter and a 16 6 0 dummy load or three 50 loads in parallel to the antenna jack and set the RF PWR control fully clockwise max CJ With the transceiver set to the CW mode 14 200 0 MHz key the transmitter and adjust VR1017 for 40 watts on the wattmeter 1 3 5 7 s n ose dB o 5 10 20 50 100150 PO s 0 25 10 20 3050 S Meter Reverse PO Indication FT 840 Technical Supplement 558 Modulator Balance With the transceiver tuned to 14 200 0 MHz USB mode connect a 50 dummy load to the antenna jack and RF millivoltmeter to J1005 Set the MIC control fully ccw min RF PWR control fully cw max Key the transmitter and adjust VR1008 for minimum indication on the RF millivoltmeter AM Output Adjust Tune the transceiver to 14 200 0 MHz mode and connect the wattmeter and 50 0 dummy load to the antenna jack Set the RF PWR control fully cw max and the MIC control fully cew min Next key the transmitter and with no modulation
167. t REF MFGR S DESIG VALUE TOL DESCRIPTION YAESU P N VERS ADDR C 2049 TANTALUM CHIP 0 33uF C 2050 CHIP CAP C 2051 CHIP CAP 2052 CHIP CAP 2053 CHIP CAP 2054 CHIP CAP 2055 2057 2058 2059 2060 2062 2063 2064 2065 2066 2067 2068 CHIP CAP AL ELECTRO CAP AL ELECTRO CHIP CAP CHIP CAP CHIP CAP CHIP CAP AL ELECTRO CAP CHIP CAP AL ELECTRO CAP AL ELECTRO CAP AL ELECTRO CAP 2069 CHIP CAP 2070 CHIP CAP 2071 FILM CAP 2072 CHIP CAP 2073 CHIP CAP 2074 CAP 2075 2076 2077 CHIP CAP 2078 CERAMIC 5B 6 2079 CHIP CAP 2080 CHIP CAP 2031 CHIP CAP 2082 CHIP CAP 2083 CHIP CAP 2084 CHIP CAP 2085 CERAMIC CAP 2086 CHIP CAP 2087 CHIP CAP 2088 CHIP CAP 2089 CHIP 2090 CHIP CAP 2091 CHIP CAP 2092 CHIP CAP 2093 CHIP CAP 2094 CHIP CAP 2095 CHIP CAP 2096 CHIP CAP 2097 CHIP CAP 2098 CHIP CAP 2099 CHIP CAP 2100 CHIP CAP 2101 CHIP CAP 2102 CHIP CAP C 2103 CHIP CAP 0 OluF 0 001uF 100pF 0 001uF 0 001uF 0 001uF 100uF 330uF 0 O1uF 0 OluF 0 OluF 0 OluF 100uF 0 OluF 470uF luF 470uF 0 OluF 0 OluF 0 luF 0 001
168. t 7 7722 2106 2106 2 12221 7 CLX2ZTIZTIS a F 02034 gt For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tr e Rd Chinnor Oxon OX9 4QY 01844 351694 01844 352554 enquiries mauritron co uk Q2044 pin 2 TP2003 ck DDS 2 check Transmitter Carrier Point RF millivoitmeter gt 65 inV to chassis ground iment Diagram 3 7 Alignment 3 8 Downloaded VR1006 Amateur Radio Directory www hamdirectory info usd n VR1015 H CW Semi Break In Delay Time 7 eL pos ri b 2 e 501083 01078 0 235 41235 1015 VR1012 Speech Processor Check C1204 D1093 dB 0 C1284 VR1004 IF Interstage Alignment D Tr 11005 61007 F J1005 SSB Modulator Balance connect RF millivoltmeter Tr Tek deb dw VR1003 IF interstage Alignment amp 151 Mixer Balance For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor 9 4QY TIC T84 351694 Fax 01844 352554 gt enquiries mauritron co uk IF Interstage Alignment C 2 5 OM 6 a 210 C128 1104 L IF Interstag T1008 T10 1250 41002 c 11053 C1008 T1010 71011 101 LL IF Interstage Alignr Main Unit Aligni VR101
169. tage according to the table 1 shown at the top of the next page 0 Tune the transceiver to 30 000 0 MHz USB mode connect the RF voltmeter to 02048 pin 13 and confirm an level of more than 60 mV 1st L O Output Level Check Connect the RF millivoltmeter to TP2014 Tune the transceiver to 30 000 0 MHz and select USB mode Confirm a level of at least 640 mV FT 840 Technical Supplement x lt 12019 80V 0 V confirm 1 0 2 0 V 80 V 041V 7500 contmi0 20V 80V 0 1V Table 1 Voltage Alignment m for indicated 30 000 0 MHz L2027 21 500 0 MHz confirm 1 0 2 0 V Receiver Circuits Refer to the Main Unit Alignment Diagram on page 3 8 for location of components IF Interstage Transformers 1 coarse alignment Rx Carrier Balance CJ Connect the RF signal generator to the ANT jack and an AF millivoltmeter with speaker to the EXT SP jack Set VR1003 amp IF SHIFT to 120 clock position them set VR1002 VR1004 and VR1007 fully cw Inject a 100 dBu signal at 14 200 0 MHz then adjust T1001 T1008 4 T1010 T1012 in sucession several times for peak indication on the millivoltmeter C Reduce the SG output level for an S meter indication of 5 3 5 5 then adjust VR1006 for peak AF output or max S meter indication IF Interstage Alignment Inject a 80 dBu signal at 14 200 0 MHz Connect the AF millivoltmeter across an 4 8 Q load to the EXT SP jack on the re
170. the in line wattmeter 50W RF Power Output Adjust Set switch S1001 to the 50 W position then set the RF PWR control fully clockwise max Select CW mode and tune to 14 2000 MHz Key the transmitter and adjust VR1016 for 50 W 2 5 W as indicated on the in line watt meter Ext Antenna Tuner RF Power Adjust 3 the transceiver off then jumper TP1002 to chassis ground Set switch 51001 to the 100 W position then set the RF PWR control fully cw max and tune to 14 200 0 MHz CW mode Turn the transceiver on key the transmitter and adjust VR1011 for 10 Watts Turn the trans ceiver off and remove the jumper from TP1002 TX IF Gain CJ Connect AF signal generator and AF mil livoltmeter to the MIC jack and inject a 0 5 mV signal at 1 kHz CJ Set the RF PWR and MIC controls fully cw max tune to 14 200 0 MHz USB mode Key the transmitter and adjust VR1007 so that the meter set to ALC just begins to deflect 3 4 ncrease AF SG level to 1 mV rms if neces sary to permit deflection ALC Meter Sensitivity 0 The S Meter Full Scale Adjustment must done before this procedure CJ With the transceiver tuned t 14 200 0 MHz USB mode inject 3 mV at 1 kHz from the AF generator to the microphone jack pin 8 CJ Key the transmitter and adjust the MIC control so the meter set to ALC just begins to deflect Increase the injection level to 7 5 mV and adjust VR1014
171. uF 0 Oluf 0 luF 0 001uF 0 001uF 0 O1uF 0 00142 4pF 0 SpF 10 0 OluF 0 OluF 0 O1uF 0 OluF 56pF 0 001uF 0 001 0 O1uF 0 OluF 0 001uF 0 001uF 56pF 27pF 12pF 12pF 120pF 10pF 68pF 100pF 100 100pF 50V 50V 50V 16V 50V 16V 50V 6 3V 50V 50V 50V 50V 50V 50V 50 50V 50 50V 50V 90V 50V 50V 50V 50V 16V 50 50V 50V 50V 50V 50V 50V 50V 50V 50V 50V 50V 50V 50V 50V 50V 50V 50V UM pU rr RH gt r uocum aaa c mm 5 a TESVA1V334M1 8R GRM40F 103250PT GRM40B102M50PT GRMAOCH101JS0PT GRM40B102M50PT GRM40B102M50PT GRM40B102M50PT 16V101M6X7TR2 16V331MBX11TR5 GRMA4OF103250PT GRM40F 103250PT GRM40F 103250PT GRM40B103M50P7 16V101M6X7T8R2 GRM40F103250PT RE2 16V4T1M 50V010M4X7TR2 RE2 6V471M GRM40B103M50PT GRM40F103250PT 50F2U104M GRM40B102M50PT GRM40F103Z50PT UPOSOF 104Z A B GRM40B102M50PT GRM40B102M50PT GRM40F 103Z50PT UPO50B102K A B GRM40CHO40CS50PT GRM40CKOLOCSOPT GRM40CKORSCSOPT GRM40CH1CODS0PT GRM40F103250PT GRM4OF 103250 EPOS50Y103N GRM40F 103250PT GRM40UJ560J50PT GRM40B102M50PT GRM40B102M50PT GRM40F 103Z50PT GRM40F 103Z50PT GRM40B102MS0PT GRM40B102M50PT GRMA0CH560J50PT GRM40CH270J50PT GRM40UJ120J50PT GRM40CH120J50PT GRM40CE121J50PT GRM40CH100D50PT GRM40CH680J50PT GRM40CH101J50PT GRM40CH101J50PT
172. w for location Top Cover 4 x Oval Head 1 x Binding Head Bottom Cover 5 x Binding Head Front Panel 4 x Flat Head 2 2 Removing Back up Battery OS Slide battery inward then pry up to eject Inserting Back up Battery S S Slide battery inward then up to Battery BACK UP switch BACK UP ON OFF Case Cover Screws Binding Head Screw M3 x 6B Flat Head Screw M3x6B Oval Head Screw M3 x 6B FT 840 Technical Supplement Front Panel Access Pilot Lamp Replacement Front Panel Access Lay the transceiver on the work surface with the forward end of the case extending slightly over the edge of the surface photo 7 Photo 7 J With the top and bottom covers removed loosen the 2 forward screws and remove the remaining 2 rear screws on the front panel assembly as shown in photo 8 a amp Loosen iuo Loosen Photo 8 Note the track cut out guide for the two remaining loosened screws Slide the front panel assembly forward slightly in the guide then fold it gently down to ex pose the rear of the front panel assembly wiring and components photo 9 Photo 9 Je Pilot Light Replacement replace the pilot lamp gently pull the bulb from its silicone rubber mount as shown in photo 10 Trace the lamp leads to clamp connector J1031 located on the for ward edge of the Main Unit PCB P

Yaesu - FT-840 Service manual

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