"service manual"
Contents
1. Large size E 27 ES SCH diagram E TUN401 FM 12 2185 1000 1 E FM AM TUNER UNIT E HE CN402 lt o S 6312 R22 1 Or NM NM ORO DEENS cere eH NANANNA t et 5 gt gt 44 HOOO LZ 5228 EIS Sate MONO I I gt el zl sl XI AMB 85 51 TAPE 8 8dBs 225 FM 2 6dBs zz 1 22115 5 D I 21 1 9485 2 1 a Kon 408 2 2 als EMB Leh 9301 CD 5 3dBs 6309 ST gt 8 36 25C2412K ORD R22 5 1 ti vco ES E e 7121 1 1 TUNB Sg m 1 150 C539 22 10 Le EN D 1401 8405 ess 12101 uc R33 T 1 es 51 4 1V 2 E 5 gt 5 Sr 0505 24 5 44444 all 5 5925g 7 S 23 52533 85 LV 515 1 4 ZE tn 24 5 7 tO J Kol 22. lt a qv EM i A i 212 O me r 1 var 5798 45481486 I EXE LINN a e e Wm 2793 10 0 vi I e Sr e 6082 559 IL L J zH z dng SHSF 1 RU d 815 gt 06139 6L 6L I gt Qa 00 0 95 KEE c Co 5 WIyzyz 1094 5 0982 reaf 3298 9LH9L 725 295 425298 Sg 1 SLHSL 53 2 2 929 rue 534 538 042 6298 8 504 I 1 3 B SOdyzuz 2294 I ZLHEL e Oyzuz 1298 4 YN 310W2N 6 H 6 310WON C 1 N 1594 Sp ER n ONS 6199 2 QININININ IN N LHL 1 MV 1 X2 2 8198 EE Y N 555552 Y N Lan elle 3824 d SWyzuz 919 res 22 5826 44 1 _ 5 N 1 I de O D XL gt XI LAL N L lo Lat HI NTS 5265 E lal lal lal gt gt p 5 0440
3. alu 2 H gt rue whe SNj50 8 gt gt 2 025601 sn LI gt gt aye 75 Es SIE 5060 18751 1500452 5060 SN3SV t 030 58358 ahg 4 4 SS 9998 Leer 5 32012 TURT O t t 1 1 1050 t slg m 21210 xz 85N35V m 2 TET 143 525 964 zs STS irs 5002 92 0 s SIS Sis 2197 L 62 NV dE gt wg 2 2 0 6793 eun 3 012551 1050 L E 5009 22 V4 REN a 5 1 es I 5 2091 je LEO olL BPE 001 022 Xr Q neg ng WTA Gabes l 1701559 V L 6 m 41 end 0254 8158 109X K SG L 8 L 2 uu DEL kl 2 Lvi 193 2 2 4 M AUI WB S3 ve vL 56920 0052 28 9 OL L XLv ciu E 13101A LC II v 5 XIV 1072 BL Lee Lv T Um E ml E I 1 SI 8 9 gt 5 VE eL gt GL ACL WW 15 610 29 S 8 8 8 0 SNg d 35 18 3339 1 21 178 178 e e CL ACL 33 zz59 vigas 5 NET e roa L GC Le
4. 2 3 4 OO P4950 ne YT Y 5 N Es ggj 8 EN TEM 2 q NI a 11105 a u IM E diis lt mE SAYA 4 E 87 AUS R336 for 135 LER 22K l Se SIE D Sls EIS 1 8052 ele 01 19 N 659 Tasna 24508 nas 1009 gt gt MN x I e D ON Lun es pu us 5 5 d 5 5 Lm Ci mt m 2 1 lt a KS un 5 5 alle n lt gt 1 E 4 5 3 WOOL Leen 1159 i 4 2051 XLV 6253 4 in ele tal 2 IS 10 5150 XLV 2558 4 4 549 22 WLU 8253 I 1052 o gt gt gt I E XL 2054 LOY 5052 5 d 030 in 12499 I 5054 f d al M CI S oo a _ 6 2 4001 2 db adis E ico rv z wns 004 ET i 8072 US late ue SCT 2 218 ert C lt des m lm 55 2012 50 324 ker eS SIS gt 9 2 d51 1 122 gt CG 921 448 5 ot SS 5 2 Dja
5. IP BUS FL MUTE 8052 IP BUS DRIVER 1C702 9701 5 C ASENBO 5 FRONTL 02 SPEAKER gt TDA7384 0307 REAR L 72 MUTE STBY S SPEAKER 0904 0911 VCC i ei SYSPW BACK UP i4 3 0901 BSENS be 0905 8V Q902 voo REGULATOR geg SYSPW DECK UNIT RESET 3 e 1 602 1 2 5 80734 0906 fats 60 REV L ch IMCMUTE X SYSTEM MECHANISM CONTROLLER Re 1C601 2 2 STBY PE5086A Q601 VDD SWITCH gt 5 DSENS KYDT DPDT gt 8 3 REEL SENSE REMOTE CONTROL SENSOR DPDT 8 8 gt a KYDT LCD DRIVER 1 1901 PD6278C KEYBOARD UNIT 9 1 2 3 4 1 KEH P490 P4900 P4950 3 2 OVERALL CONNECTION DIAGRAM GUIDE PAGE Note When ordering service parts be sure to refer to EXPLODED VIEWS AND PARTS LIST or ELECTRICAL PARTS LIST
6. J 2 IX 55 2 gt GZ 52 8L e n 8e 3 089 22 AES 6 LE 481 D 1201 CC A C gz NX Sz E zz 44 5 Le 009 1 gt et gt EA cc 220 1072 T gua lt 328 a D L x3 CC QZ NY o 0 I 22 Aire NEN CI CI CI CI MIM gru Lou I ws d 02 1 95 4 1 Semi S 5050 Sul 1 9 14 4 1 1 E 1 S D 1 0 1 o x 91 199 5259 I T an 5 1788 Ed lt anv A Tu lbs QT 1552 I un gt BGH dE LL ame WT 5 I X335 Z I Ss iM E 2 Lou 7059 030 4 Cat wat 5158 wn KE L t iswy 5d9 ZZ 6152 905 8852 d EE 6 8152 tog sx a SS 1004 4 gt 1001 L gt 4 nds A8 8139 asna 9 1 l CU 507 841 l 9313 99 D SE ot 1 I 034 00 7 TW 1 1 bx I KEH P490 P4900 P4950
7. D DECK UNIT SIDE B ADJ VR302 R252 Jeme 605699 wiel 255 IC253 IC251 085560 82556009 8055 ete C2510 ie 0352 VR301 VR3 1 1 2 Emi 3 um 4 490 4900 4950 3 REEL SENSE cn253 KEH P490 P4900 P4950 5 ELECTRICAL PARTS LIST NOTES Parts whose parts numbers are omitted are subject to being not supplied The part numbers shown below indicate chip components Chip Resistor RS1OSOOOJRSVOOSOOOJ Circuit Symbol and No Part Name Part No Circuit Symbol and No Part Name Part No Unit Number CWM7021 KEH P490 X1M UC D 908 Diode HZS9L A2 KEH P4900 X1M UC D 909 Diode 1SR139 400 Unit Number CWM7025 KEH P4950 X1M ES D 910 Diode 1SR139 400 Unit Name Tuner Amp Unit L 401 Inductor See Contrast table L 501 Ferri Inductor LAU2R2K MISCELLANEOUS L 502 Ferri Inductor LAU2R2K IC 301 IC 00 L 601 Ferri Inductor LAU2R2K IC 302 IC TDA7384 L 602 Ferri Inductor LAU2R2K IC 501 IC PM2006A L 603 Ferri Inductor LAU2R2K IC 601 IC PE5086A 702 Ferri Inductor LAU2R2K IC 602 IC S 80734AN L 901 Choke Coil 600uH CTH1168 IC 702 IC CA0008AM X 501 Crystal Resonator 7 2MHz CSS1474 IC 901 IC TPD1018F X 601 Ceramic Resonator 4 194MHz CSS1047 306 Transistor DTC124EK FM AM Tunew Unit See Contrast table Q 307 Transistor 2SC1740S 308 Transistor DTC143TK RESISTORS 309 Transistor DTC143TK 301 RS1 10SOROJ 310 Transistor DTA12
8. soInos 519195 Uollnq 440 40 ANOS M Jo 88914 yory ISLA se uoos se 69188 JUUNI suonejs drys spuoaas uey 9800 10 001100 81155914 e yun 9 0N eornog 5244 10 spuooos CH Surung 99 5591 10 spuooos C 0 days dels Suruny enue 7 H 3 583 EA d GG 0300 CO lt 4 21 55914 10 433991 Aq 129195 UBD dounT 8 9 PAPS T pue jenuey Jonpoid sty enssseo v 8 e orsnui 0 uojsi NOA pentur 81010 991 jo 0 1 90 21524 Isny 03 19151101 A KEH P490 P4900 P4950 peAeldsrm st OSIA 14ed qdD nDInN sosrp OU III Tenuew s IeAeId GD DInN 01 1979 SI Se Yons asessour 10119 ue 4 Jouues GO HIN M JI peakAeldsm st 10 po12o es st 251 Mau NO 51 Jamod ISIP Surpeoi ostp JO SUIAJLIOA se qo
9. 9 19552 930N YOWIS ASNW PUMY SW A lt putos MA ISNW PUMIY 2 gt M Jo 55944 yoeqAefd ASNW PIEMIOJ SW A PIEMIOY 1864 JISNIN ISEA 5129195 001 14 lt IY Jo ssaid I08 aisnjy pue 1524 1e e d 995587 jo 1 40 21524 53 KEH P490 P4900 P4950 8 2 SPECIFICATIONS General Power source 14 4 V DC 10 8 15 1 V allowable Grounding system Negative type Max current consumption 85A Dimensions 490 1M UC KEH P4900 X1M UC DIN chassis 178 W x 50 H x 155 D mm 7 W x 2 H x 6 1 8 D in nose 188 W x 58 H x 20 D mm 7 3 8 W x 2 1 4 H x 3 4 D in D chassis 178 W x 50 H x 160 D mm 7 W x 2 H x 6 1 4 D in nose 170 W x 48 H x 15 D mm 6 3 4 W x 1 7 8 H x 5 8 D in We 1 2 kg 2 6 16 Dimensions KEH P4950 X1M ES DIN chassis 178 W 50 155 D mm nose 188 W x 58 H x 20 D mm D chassis 178 W x 50 H x 160 D mm nose 170 W x 48 H x 15 D mm 1 2 kg Amplifier Continuous power output is 17 W per channel min into 4 ohms both channels dr
10. button KEH P490 X1M UC ONLY PAUSE button Press once to pause play BAND button CD button Press once to select a CD TAPE button Press once to select a tape 2157 Detach button SOURCE OFF button CLOCK button DISPLAY button RPT button AUDIO button button AUDIO button 4 V lt buttons TUNER button Press once to select the tuner ATT button This lets you quickly lower volume level by about 90 Press once more to return to the original volume level 51 KEH P490 P4900 P4950 79 YSNoIy VI suonejs puoses 10J PIOH jsevopeolg I629L 500110909 10 24 e K1ouroui 103 oq 810115 9 pue CC GJ GJ 03 CL Ga pue IA 14 ur 9 suones WA 81 9140 e 9 0N JAO 924nos e 10 Spuooos 7 195214 uonejs jseopeo1g 10 spuooos c 20291 uoneis 198914 ey ey 257185 nantes eau 80 01 l 5 9 5001 J WV 14 Mq 5000635 15 sez 114 14 IY ISTEY C pueg 39
11. P C Board Chip Part SIDE B 0920 0906 0907 A TUNER AMP UNIT 522 00909 0502 504 0918 5 2 9922 0511 0501 0402 VR421 IC602 0505 0504 0601 8505 9507 9501 0502 e c 1901 24 2 3 4 7 8 490 4900 4950 5 5 5 ley isle 3 N 2181 Sey EINE n 11 1 m STOH gt d Sen jz EI _ 8 D c LJ 1 2 490 4900 4950 UNIT 7 8 490 4900 4950 SIDE 4 gt 3 1 2 KEH P490 P4900 P4950 4 2 FM AM TUNER UNIT SIDE 2 D nc gt st H Qi UO in OC gt H OF gt lt gt D Qu CU at gt OOM aan bk Qd Qd H amp 5 Cl 1 2 A 4 9 495 LINA YANNL E SIDEB L09M rg 2 1 490 4900 4950 4 3 KEYBOARD UNIT auvoaxay Rar Le NS ie Ee 1 2 3 4 KEH P490 P4900 P4950 4 4 CASSETTE MECHANISM MODULE D DECK UNIT CN602
12. i 7 a 2 2 R256 220 r 20 R273_1K Rev R R284 ORO 1 4 31 gt E 19 1C I 2 PERINZ DRSW 18 R271_1K R290 9 C Fwd R 2 1282 34 PBGND 251 7 R274 AK C257 3306 Cz 8287 35 PBFIN2 MUTESW e T 21 23 16 wo 36 25590 22 16 36 15 Fwd L R281 ORO 37 PBREF 14 C403 1 PBFIN1 MSOUT FL C251 330P 38 13 0 it PBGND MSTC 39 12 m BM PBRIN1 G1FB i HD1 R255 220 40 11 3900 HEAD ASSY 1 PBFB1 E G2FB cil EXA1506 Ehz 5 1 Hs e TEST TAPE 2 150 clo lt jolcl lolols 400Hz 200nWb m 1 R01 1K S 4 5 BTE 5 5 8 I ge 8 A I I C272 R1 1 I S 5 8 CN251 _ gt _ gt _3 gt _ _ 21 a 2 lt E SC gt Lr ES 2 LL gt f lt 6dBs 388mV 1dB A CN602 22 5 6 7 8 KEH P490 P4900 P4950 M1 MOTOR UNIT MAIN MOTOR ee CN255 IC CN253 1 1 gt 1 2
13. 102 655 8022 2 085 8 85 03 SI FM 101 wan 1 csa 4 855 1445 SL d t erst 41090 I 4 9V 65dBf x 1 all C51 022 8 4044 MUTE 5 30 m 1 A 151 zn HE c59 01 5 p AFC 460 ere C63 R22 50 2 5 center veten 2 t 1 2 2046 IFVref Vref 1 5 5118 218 gt gt el 5 2 24 7 IFIN Q IN 2153 E 5 55 o 1 Dep 1FGND IFOUT 4 22 1 LLLI ET 17 KEH P490 P4900 P4950 CWE1486 KEH P4950 X1M ES TUNER Ut 99A WY 241 UND OJAI 09A 15 AL Nie AL WV 99A H 201 2901s QN9 INV INV WY lt 9 5 lt 1 pn 9720 w ren Bis wae TARY 504 8923 t 15 es lt H M wo M 515 L 8 29 19941 1 lt Lu 2 194 gt TE gt i 13 8 LV LAN 194AV ET E Ws E 2804
14. EE wo C162 383 50 OTP5ew OV 65481 XII 2 lt cni 5 1 l C163 ROOT 8165 22K R157 20K a SS N 2 1 V 1 amp gt 4 ui 4 ENVSENS 17 A 17 1 233 PNSSENS 5044 Dy OV 65481 3 gt E E R104 330K C 106 155 27K C RAM 1 2 8V 1 9V gt 3 3 TIETE AGC HCCadj 15 gt gt gt gt gt gt gt PNS C104 282 50 SEI 12 LH S ad le AGCgain ARCadj14 Hav S C105 ROI 2105 68K lt 5 CCP1213 1 N N N N N C106 150P C154 1 5 5 E E 4 HPF SN MPdet 13 1 E 3 C187 ROI nu 2RXK lt lt 21037 SMPNS ENVHCC 12 1 058 33710 lt C153 _ 383 50 AC ls 5 O sugg 1148 2353 3228 e o 5 7 3 T C152 5 4 x d 39 IFC MUTED 5 N C57 4700P i N o 183 gt gt gt av 3 9V T d 3 3 a 3 8567 A 2 SD HOLD C sj 1 L 20050 PNSIN e E 1 1 8 M C56 RI 3 9V RIOZ GREK Ces 8022 2 SN ir Lia SDr COMP 7 3 3 2 z gt 18 18 1 FM L am 1 855 1 3 SL MCC d it 0151 Om 4 9V 65dBT Rat sc C51 R022 V ir 8 4044 MUTE s E 3Y 1 151 zn EE 818 ES n c59 80 pels d 2 24 5 1FLPF AFC 2 00 4 E
15. 663 822 50 5 C52 METER 5 2246 IFVret Vref 1 SEED lh zx rx 21 8 Ea gt is 2 24 7 IFIN 0 IM 28 5 E 95 5 a 448 1FGND IFOUT 3 5 4 5 27 4444 1 18 CAW1565 KEH P490 P4900 P4950 3 4 KEYBOARD UNIT LSS EB 38935 3 LT MEI z tw 51935 55 75935 5935 D 25935 e 15935 02935 gt _ 55935 87935 12935 NY eo 92935 ALY co 5 9 9 e o ALY ES 360915 grege 846 72935 i ae E N 03 OM sl LA CI 20935 fel lt Is e cl CI CI CI CI CI CI CI CI CI CI M MI 77515 12515 865 BB 80 HO z S 255559 C 6 02535 ST 0109 75935 C 51915 e 0193 5935 es 155 SL 1153 28935 OC 11945 gt 615 C 15935 91935 215 CI 02935 51935 gT 8091 ES 62935 77935 no up 12935 71515 Z 30935 fep 11935 024 529
16. GND IM 1 TH 1 2 3 4 5 6 um 7 8 KEH P490 P4900 P4950 sao found some component parts indicates the importance of the safety factor of the part 25 Therefore when replacing be sure to use parts of 22 m identical designation SIS 27 484 i 2 24 1221112 I ME 2525 2282 2222 582 1 C326 8325 misa C 4 0308 E VO MLO03AM RESET DTC143TK 1 tees 16602 gt Hh 892222288 45 2727132952 s
17. E 4 9 1 IL yee 12 E I 34 H 901 EE Za c 18 81 lt lt PIE 52 Qu gt z 8 56 5 lt c5 1 5 tes 2 woes Foza T a wo 2 t cO 172014 5 dii E lt L 5 86 5 2 ES et gt 5 Zu ST GND Ain hot J 5 51 5 5 1 gt t LX 1Ny M Wi 5 Sr68qd za 1 ny ny cS cS INN il E gt tn 16 8 KEH P490 P4900 P4950 2 2 6 5 2 8 Z a R UNIT s s 3 2 i 3 2 8 e 8 d gt lt lt 3 m o 5 1 1 5 FM Ri6 _ 5 gt 3 5425 LPF LOOP F24 i 9V 5 1 5 51 al 2 595 Ce 3 3426 LPF LOOP 623 5 2 M 8 E 5 Ver ue AM DET BV Auto 2 REQ MO STIND 22 VDD MONON 3 5 2 2 VDD MONO lav ST 151 551365 375 gt Ellen AMIN 21 4 9V VI TH gt gt M R161 56K 178 10P 1
18. 110031 gt 421522 Sn CN M E i 089024 SD ML Ate D lt 5 p Ex WS 4801 2 2 4 os ODA lt L QNO just E P ffe T 1 6 2 RA Q gels M n LE 19JANY NI29V ZL i gt lt gt 5 lt AR N 4 5 psu 2504 6520 21 1 2 IL 18 52 248 ZEY 40058 ju S ries 92AM4 LNOX IW 0 ber 2 Lo 188162 1 gival 122 IL JL 1 4 IXIN gt T 0022 wo 612 us daly 92 FQ gt 99 zy 194 5 IXIN mm Um bena dier XIMI d E 080480 fPe29V shy SE ya Long at Gest sv PAI 190v v Die s P er 2559 NI LIV chen 5 LISV 29V z 1 ue eng Y e 1 MI09V 1908 5822 T 2 E E 1 eg LI Bl 188 129 TM B 957 LL m 5 Ta 1 C zl 2 1 gt 9053 00i Lazy f 2 52 Je 9LVVI 90 MM 2 027 LL I 6029 la i 40822 19 8 5 E E gt 5 2 344128 war Us ipea EECH le IM 5 8 Sha gt 1 1 tele a 5 4186 um x gt Qa gt dh 5 a E ir 3 MOST yu 1
19. 2 0V N TETTE Cd DDSSENS Rch 28 p X151 918 5Hz E C160 l 2 2 in 1 1650 ARCY Lch 19 S R162 1M 5 1V 65dBf 1 5 8 n 2 0031 ENV AFGND l 1181 lr cs C162 383758 TPSew OV 65481 T lt C163 ROM 8155 22K 8157 20K us db S N T 12052 ENVSENS MUTEadj 17 8 4 1 2 2 T n 6 2V 65dBf R193 33K R156 24K 1 2 1 1V See V 6508 PNSSENS SDadj 16 A E R104 330K 155 27K 5 8241 12 i 2 8 1 9 9V 6508 2 AGC HCCadj 15 mm A gt gt I gt I gt gt gt RUE 150K 8 2 de d 4 3 PNS i 3 1 5 AGCgain ARCadj 14 N C105 RBI up lt CCP1213 1 M N C106 150P e 154 R1 gt 2 5V 1 9V 5 3 5 5 GE T 36 HPF 1 8 2 X Q S 5 8 C107 01 R107 je 7 SMPNS lt p ENVHCC 1218 i 33 18 7 lt 4 C153 3R3 50 2 8 428 Ver 2 os o N DA lt lt N t S E n t t 001 C152 R1 1 lm 5 lt Se d 39 MUTET 1 gt tH EM SI s ad V C103 6800P WEAK C 40 SD HOLD 404 4 4 gt sp 2R7K cred AM i 41 20050 PNSIN e A C56
20. XM am Se em ea LLL ERIT Sp Ic 165 ats rrr Pe 2504 24 110031 SL bes gt a gt 4 polse 0N900A Sl v 1 lt 1 4 pom 40019253 E a lt Hos OA lt L QNO els m T kd 930019 17098 _ 952 dS 55 gt gt 1 LE NI29V 2L nm Ose viu AR ZA 1 E es SONY CO 23 5 5 ieza 2 8 Sen 1 T m 41117 1509 1 40055 5502 29 EE Argjez 99ANJ OL Z LL 5 NI 100XIM eb Rm 99A W e 48822 ku KE AER 72 d 99A izr A LXIN 2 1 241 5 toy 82 6222 XIMII 2 1 OND 48000 2290 SL 4 3 GND 0 xus zi sy 199Y 1 HUN Day ZI9V 1129 ST 5 8p59 1 1299 EDDY T 2 1 T gt 1 Her 99 TIDY 1903 5822 JS Wen az 514 i n s 488 ei ACT NI29V 9 L acy 583 d i ia 5 3801 1129 SCT T 2 2 i 2 56 Woy 129 LU 5 AL Min CR 1 tLON x95 4 05 1 112 495 1822 V9 V 2129 1 bi CD n 1 9078 T 801 Lazy 2 T 5 Ki I 1 gt AL Wye LL EH rb 85 0 BE LSLVIN el 027 X22 OLY 4 4 T 4 LL 564 6072 LI 929A PE 528 5 Loy 9029 2 Die gt ee Deet
21. ANT Coil 3 98 1 M 5 98 1 L2 mV Meter 1 Maximum 4 98 1 M 5 98 1 14 mV Meter 1 Maximum IFT 5 98 1 M 5 98 1 T31 mV Meter 1 Maximum STEREO MODE ARC 6 98 1 S 40 98 1 VR154 mV Meter 1 Separation 5dB STEREO MODE 41 KEH P490 P4900 P4950 7 GENERAL INFORMATION 7 1 DISASSEMBLY Cassette Mechanism Module Remove the Case not shown 1 Remove the two screws 2 Remove the Case Remove the Cassette Mechanism Module not shown 1 Remove the four screws 2 Disconnect the connector and then remove the Cassette Mechanism Module Remove the Panel Unit Fig 1 Disengage the stopper at two locations indi cated by arrow Remove the Panel Unit Panel Unit Fig 1 Remove the Tuner Amp Unit Fig 2 Remove the two screws Remove the four screws Remove the screw Unbend the tabs at four locations indicated by arrow until straight Remove the Tuner Amp Unit 4444 Tuner Unit Fig 2 7 2 PARTS 7 2 1 IC CXA25590 2 PBOUT2 TAPEIN2 0 8 OUTREF2 70 24120 pu 8 5 Qa 99 7 2 p 9 LINEOUT2 PBRIN2 PBGND BIAS PBFIN2 MUTE TAPE EQ w gt 5 MW i MSMODE DRSW TAPESW MUTESW NC NC MSOUT MSTC 704 1204 1 PBFB1 0 C 6 C 6 E g E 23 8 2
22. 1 48 16 33 17 32 4C KEH P490 P4900 P4950 7 2 2 DISPLAY CAW1563 NOWINOS HS INIWD3S 47 KEH P490 P4900 P4950 8 OPERATIONS AND SPECIFICATIONS Connection Diagram KEH P490 X1M UC pros dure Sursn suorouuoo 95943 Joxvods moy Jeyeads I0X 9 08 01 jou sped Iaxeads 0 oeuuoo jou VI91 z e IAA 5 JAAA yoeIq ueslID Joyeods Tow uonisod qois ssopprego1 5 MOJA skemye PFOA 9910 WP Hei OG A CD po oxiuoo peura ono OL Joyeods xpov q At1c yoelq alrdAA Jeyeeds 70014 juod 8 AAA MUM gt 103105 urojsKg Apo1eredos pros ATo1e1edos i ayman i COA A ZI 006 XLN onuoo VV91VC 01 V dur 1amod i Jo o guo UI9 SAS oL
23. 100 16 623 RD1 4PU222J 308 5 104 50 624 RS1 10S222J C 309 CKSOYB224K16 310 CKSOYB224K16 625 RD1 4PU222J 626 RD1 4PU222J C 311 CKSOYB224K16 627 RD1 4PU222J 312 50 224 16 628 RD1 4PU222J C 313 CEJA4R7M35 629 RD1 4PU681J 314 CEJA4R7M35 315 CEJA330M10 630 RS1 10S681J 633 RD1 4PU681J C 316 CEJA1ROM50 634 RD1 4PU681J 317 CEJA100M16 635 RD1 4PU222J C 318 CKSYB225K16 R 636 RS1 10S472J C 319 CKSOYB474K16 320 CKSOYB474K16 R 637 RS1 10S103J 638 RD1 4PU222J 321 CKSOYB474K16 639 RS1 10S223J C 322 CKSOYB474K16 641 RD1 4PU222J 323 CKSOYB104K50 R 642 RS1 10S473J 324 3300uF 16V CCH1169 325 CEJA2R2M50 643 RS1 10S472J R 644 RS1 10S472J C 326 CEJA2R2M50 645 RS1 10S472J 327 CEJA1ROM50 646 RS1 10S103J 328 CEJA1ROM50 647 RS1 10S103J 329 CEJA1ROM50 330 CEJA1ROM50 R 648 See Contrast table R 649 RS1 10S103J 331 CKSOYB153K50 651 RD1 4PU222J 332 CKSOYB153K50 653 RS1 8SOROJ 391 CKSOYB225K10 654 RS1 10SOROJ 392 CKSYB474K16 393 CKSYB474K16 655 RS1 10S473J 716 RS1 10S620J C 394 CKSYB474K16 71 51 105101 395 5 474 16 R 718 51 105101 C 401 CKSOYB473K50 R 719 RS1 10S473J C 402 CKSOYB473K50 C 403 50 223 25 720 RS1 10S473J 721 RS1 10S102J 722 RS1 10S102J 723 RS1 10S102J 724 RS1 10S223J 407 408 411 413 414 504 505 506 507 508 510 511 512 513 514
24. 277 ITA jndjno row i stu 9504 yoe euueluV pos 314 uid Vou I0 48 KEH P490 P4900 P4950 Connection Diagram KEH P4900 X1M UC 49 pros dure Suorjoouuoo 9S9U tsn uoy I wood w sioxeods jou 0 9 oeuuoo jou op 019545 IeyesdsZe YIM Joyeods YIAN yoelq ussID Joxeods woy w 5 qojr s Jo 55 A O SA skemye PAOA 24514 Od A I yams poy 011481 Aq 91999 OL 1940945 Yoelq erD BEID le 30014 10014 T SE am Ap MYM Ionuoo pros ATIeleredas pros dure aym ngg qdD DInIN COA CI 00 XEN m i Ionuoo CI9I ost euuojue ojny Jo dure Jamod yoefeuueluV JO puruwa ToDuoo urojs s om NM e MN jndjno ree NS 5141 pros 814 Vou 8unoouuoD KEH P490 P4900 P4950 Connection Diagram KEH P4950 X1M ES Ian OZ 8 pios dure juo19gjrp Su
25. 56 Button EJECT CAC6268 57 Button BAND CAC6269 58 Spring CBH2103 59 Cover CNS5635 60 Keyboard Unit See Contrast table 2 61 LCD LCD1901 CAW1563 62 1901 CKS3580 63 Holder CNC8485 64 Sheet CNM6453 65 Connector CNV5914 66 Lighting Conductor CNV5915 See Contrast table 2 68 Cassette Mechanism ModuleEXK4000 69 Screw 15526 following Part No Mark No Description KEH P490 X1M UC KEH P4900 X1M UC KEH P4950 X1M ES 12 Tuner Amp Unit CWM7021 CWM7021 CWM7025 16 Tuner Unit CWE1467 CWE1467 CWE1486 32 Remote Control Unit CXB4284 Not used Not used 33 Cover CNS4948 Not used Not used 47 Detach Grille Assy CXB5152 CXB4788 CXB4789 60 Keyboard Unit CWM7022 CWM7024 CWM7024 67 Grille Sub Assy CXB5209 CXB5210 CXB5211 KEH P490 P4900 P4950 2 3 CASSETTE MECHANISM MODULE 29 SEE KEH P490 P4900 P4950 CASSETTE MECHANISM MODULE SECTION PARTS LIST Mark No Description Part No Mark No Description Part No 1 Screw BSZ20P040FMC 46 Pinch Roller ENV1518 2 Washer CBF1037 47 Pinch Holder Unit EXA1583 3 Washer CBG1003 48 Pinch Roller ENV1518 4 Screw EBA1028 49 Reel Unit EXA1585 5 Screw EBA1037 50 Head Base Unit EXA1586 6 Spring EBH1531 51 Lever Unit EXA1587 7 Spring EBH1624 52 Gear Unit EXA1588 8 Spring EBH1625 53 Motor Unit Service EXX1055 9 Spring EBH1626 54 Washer HBF 179 10
26. PMLOO3AM VCC INTR IN2R IN3_R 28 27 26 25 24 23 Isolator circuit Anti Alias filter Primary Auto ZeroH volume Primary volume Auto Zero Anti Alias filter Isolator circuit 1 2 3 4 5 6 Vref INTL IN2L IN3L IN4 L IN4 L G1FB G2FB Loud IN4 _R IN4 AGND out SVinR out R 22 21 20 19 Anti radiation filter Loudness Treble Volume Middle Bass Middle Treble Bass Loudness volume Anti radiation filter 7 8 9 10 AGND Loud SVinL Front out_L out_L Front KEH P490 P4900 P4950 Rear out_R FIE_R 18 17 STB 16 DATA 15 FIE Fader volume econdar volume Zero cross detect circuit Digital block Zero cross detect circuit Fader volume econdar volume FIE 11 12 13 Rear FIEL CLK out L 43 KEH P490 P4900 P4950 Pin Functions PE5086A Pin No Pin Name Format Function and Operation 1 ASENBO 0 C Slave power supply control output 2 NC Not used 3 ADPW 0 C A D converter power 4 AVSS GND 5 SWVDD O Grille power supply control output 6 ST stereo input 7 AVREF1 D A converter standard voltage 8 KYDT Grille MicroComputer data input 9 DPDT O C Grille MicroComputer data output 10 NC Not used 11 TUNPD1 PLL IC data input 12 TUNPDO 0 PL
27. 22 CCSRTH9R0D50 C 23 CCSRTH120J50 C 243 CEJAR33M50 C 244 CKSOYB473K16 C 24 CCSRCH471J50 C 245 CKSRYB333K16 C 25 CKSRYB103K25 C 246 CKSQYB473K16 C 31 CKSRYB103K25 C 250 CCSRCH471J50 C 32 5 472 50 4 C 33 CCSRCH5R0C50 Unit Number CWM7022 KEH P490 X1M UC Unit Number CWM7024 KEH P4900 X1M UC C 34 50 104 16 4950 1 5 C 36 CCSRRH201J50 Unit Name Keyboard Unit C 51 CKSRYB223K25 C 52 CKSRYB103K25 MISCELLANEOUS C 54 CCSRCH470J50 1901 PD6278C 55 CKSQYB223K25 IC 1902 HIC Module KEH P490 X1M UC RS 140 C 56 104 16 1901 Chip Diode MA151WK C 57 CKSRYB472K50 D 1902 Chip Diode MA151WA C 58 CEJA330M10 1901 Ceramic Resonator 4 97MHz 551422 C 59 CKSRYB103K25 S 1901 Switch CSG1041 C 60 CKSRYB102K50 S 1902 Push Switch CSG1111 61 CCSRCH270J50 S 1903 Push Switch CSG1111 62 CKSRYB103K25 S 1904 Push Switch CSG1111 C 63 CEJAR22M50 S 1905 Push Switch CSG1111 C 101 CEJANP100M10 S 1906 Push Switch CSG1111 C 102 CKSRYB182K50 S 1907 Push Switch CSG1111 C 103 CKSRYB682K25 S 1908 Push Switch CSG1111 e 104 2 2 50 5 1909 Push Switch CSG1111 C 105 CKSRYB103K25 S 1910 Push Switch CSG1111 C 106 CCSRCH151J50 S 1911 Push Switch CSG1111 C 107 CKSRYB103K25 S 1912 Push Switch CSG1111 C 151 CKSRYB472K50 S 1913 Push Switch CSG1111 C 152 5 104 16 5 1914 Switch CSG1110 153 CEJA3R3M50 S 1915 Push Switch CSG1111 C 154 5 104 16 1916 Push Switch CSG1111 C 157 CEJA
28. 33 zs 7 4 4 4 2 3 41 15 5 DTC143TK o MAS NES Ss als ST ST 55 855 4 0325 R325 gt 8601 2058 D e H 1 1241 TT 0692 155270 12K Sl TOK 0318 2 5 Su ol N SSS TAPE 3 8dBs 5 FM 7 6dBs AN 3 9dBs WHITE FL CD 10 3dBs 13 SR WHI BLA FL C321 C394 Pe 22 124 4 GRAY FR RAT RAT mr KE 1 2 9 GRA BLA 3 3 FR CHS eR nw 12 aan 17 NH GREEN 8 8 Hi DAD Se 5 DRIVER gt H cns mm Di lt nw la GRE BLA RL els 1 gt L 218 aan hs 5 4 XV pee nM x 8720 47K 21 ho HEEL RR 4 5 88 54 5 aa 14 5 24 58 2 a 9 171 512577 23 1 3V h a LYIO BLA RR X601 gt 25 Cs51947 FO SS 1K p p 7 A YELLOW B U 4 1 9MHZ 12216 5 S R646 10K 8641 19K 9 YIS cEK1136 TAPE 22 QdBs 222211 Tal 1 1 0301 155270 E 55 6485 REAB R649 10k tl S mz ST amp S AM 29 1dBs TH 4S ES i ED 25 1 SI TX R321 0302 155270 m n 2 81 0 56 5485 Jarat TK 2818185 1 5 1 ASENSB 4581 gt 45 CLOCK SYSPW 250711493 8654 i ei gU BSENS 14 3V ASENS 5 3 0903 2502837 13 5V 030
29. 515 516 518 519 520 521 522 524 525 4 7uF 16V 527 528 50 223 50 CCSOSL101J50 CCSOSL101J50 50 223 50 CKSQYB103K50 CKSQYB103K50 CKSOYB103K50 See Contrast table CEJA220M6R3 CKSOYB102K50 CCSOSL101J50 CKSQYB103K50 CKSQYB103K50 CKSQYB103K50 5 150 50 CKSQYB102K50 5 150 50 CKSQYB103K50 CEJA220M6R3 CKSQYB103K50 CEJA220M6R3 CKSQYB103K50 CKSQYB103K50 CCH1250 CKLSR473K16 CKSOYB154K16 CONTRAST TABLE of TUNER AMP UNIT KEH P490 X1M UC KEH P4900 X1M UC and KEH P4950 X1M ES are constructed same except for the KEH P490 P4900 P4950 Circuit Symbol and No Part Name Part No 530 CEJA220M10 601 CKSOYB473K50 602 CEJA2R2M50 603 CKSOYB103K50 604 CCSOCH101J50 608 CEJA4R7M35 609 CEJA100M16 610 CEJA220M10 611 50 223 50 715 CKSQYB102K50 716 CKSOYB104K50 901 CEJA101M10 902 CKSOYB473K50 903 470 16 1183 904 CKSOYB103K50 905 330g F 10V CCH1181 906 CKSOYB103K50 907 100ygF 16V CCH1179 908 CKSOYB103K50 910 CKSOYB473K50 following Part No KEH P490 X1M UC KEH P4950 X1M ES Symbol and Description KEH P4900 X1M UC FM AM Tuner Unit CWE1467 CWE1486 L401 Inductor LCTBR39K2125 Not used R401 Not used RS1 10S182J R405 Not used RS1 10S510J R512 RS1 10SOROJ Not used R648 Not used RS1 10S183J C506 Not used
30. 8 555 5 BUSR1 2RIK 1 805881 z B R637 BUSR2 BUSR 4 g n Be Se SASSARSAS SYSPWIN BUSL2 BUSL 83 BU SES lt 11 CD 2 2dBs CN70 ER 52 B 8644 4RIK lt Symbol indicates a resistor R645 ARIK No differentiation is made between chip resistors and Decimal points for resistor discrete resistors and capacitor fixed values d Symbol indicates a capacitor are expressed as No differentiation is made between chip capacitors and 2 25252 discrete capacitors 0 022 022 11 5 6 7 1 KEH P490 P49 Ab 12
31. LG Sze JN 8621862 ifs 2 4 rey 1 5 s whe 5 pui 1 2 si e gt 6S 9580057 060 Az 8 8060 ADL 2 gt gt 13539 S 03 EE gt S EKEEEEEEEEEEEEEER ZL ZL LLL E X2V 19 zl 3 E gt 22 sig x 2 2 zs E AIN T e gt Ki e gt 7X 5 2 gt 2 E Amm us WEE s 6311910 350 52 op us 2115 KH n gt KES 1 15 CWE1467 KEH P490 X1M UC KEH P4900 X1M UC KEH P490 P4900 P4950 3 3 FM AM TUNER UNIT lt gt 5808 5920 15 2XIM8L lt t 18 AVI L Rls d cA 3017 8520 29 30941 NI 1 REL Kr aus II G CH au 1004 gt F
32. Spring EBH1627 11 Spring EBH1628 12 Cord EDD1024 13 Photo reflector EGN1 EGN1004 14 Arm ENC1526 15 Lever ENC1530 16 Lever ENC1531 17 Arm ENC1532 18 Frame ENC1533 19 Holder ENC1534 20 Gear ENC1535 21 Arm ENC1536 22 Roller ENR1040 23 Belt ENT1027 24 Collar ENV1508 25 Arm ENV1539 26 Arm ENV1540 27 Gear ENV1544 28 Gear ENV1547 29 Gear ENV1548 30 Worm Wheel ENV1550 31 Lever ENV1551 32 Flywheel ENV1554 33 Gathering PCB ENX1054 34 Switch S1 S2 ESG1007 35 Deck Unit EWM1023 36 Plug CN251 CKS3540 37 Gathering PCB ENX1053 38 Motor Unit M1 EXA1491 39 Motor EXM1028 40 Head Assy HD1 EXA1506 41 Motor Unit M2 EXA1580 42 Screw BMZ20P022FMC 43 Bracket ENC1528 44 Chassis Unit EXA1582 45 Pinch Holder Unit EXA1584 KEH P490 P4900 P4950 1 2 3 4 KEH P490 P4900 P4950 3 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3 1 BLOCK DIAGRAM TUNER AMP UNIT 3 TUNER UNIT 131 031 CF51 CF52 MIX FM IF lt TUNER Lch 0903 B US gt gt VDD 0921 27 232 AM IF 9 29 ANSE lie FMVCC SYSPW lt gt FM AM PROCESSOR 40238 SYSTEM CONTROLLER 1 601 1 2 5086 29 atv FMVCO FMTV 501 PM2006A PLLDATA PDI PCK PDO PCE ELECTRONIC VOLUME na 1C301 11 PMLOO3AM 21
33. uV 75 Q mono S N 30 dB 50 dB quieting sensitivity 16 dBf 1 7 uV 75 Q mono Signal to noise ratio 70 dB IEC A network Distortion 0 3 at 65 dBf 1 kHz stereo Frequency response 30 15 000 Hz 3 dB Stereo separation 40 dB at 65 dBf I kHz AM tuner KEH P490 X1M UC KEH P4900 X1M UC Frequency range 530 1 710 kHz Usable sensitivity 18 uV S N 20 dB Selectivity 50 dB 10 kHz AM tuner KEH P4950 X1M ES Frequency range 531 1 602 kHz 9 kHz 530 1 710 kHz 10 kHz 18 uV S N 20 dB 50 dB 9 kHz 50 dB 10 kHz Usable sensitivity Selectivity Note Specifications and the design are subject to possi ble modification without notice due to improve ments
34. 1 CEA2351 CEA2351 4 Screw CBA1304 CBA1304 CBA1304 5 Polyethylene Bag CEG 127 CEG 127 CEG 127 6 Screw CRZ50PO90FMC CRZ50PO90FMC 2750 090 7 Screw TRZ50PO80FMC TRZ50PO080FMC TRZ50PO080FMC 2 8 Polyethylene Bag CEG 158 CEG 158 CEG 158 9 Handle CNC5395 CNC5395 CNC5395 10 Bush CNV3930 CNV3930 CNV3930 11 Polyethylene Bag CEG1173 CEG1173 CEG 162 12 Carton CHG3893 CHG3889 CHG3890 13 Contain Box CHL3893 CHL3889 CHL3890 14 Protector CHP2244 CHP2244 CHP2244 15 Protector CHP2243 CHP2243 CHP2243 16 1 Owner s Manual CRD3090 CRD3088 CRD3083 16 2 Owner s Manual Not used Not used CRD3084 16 3 Installation Manual CRD3091 CRD3089 CRD3085 16 4 Warranty CRY1070 CRY1070 Not used 16 5 Card Not used ARY 1048 Not used 17 Cord assy CDE6222 CDE6222 CDE6222 18 Case assy CXB3520 CXB3520 CXB3520 19 Battery CEX1030 Not used Not used 20 Remote Control Unit CXB4284 Not used Not used Owner s Manual Installation Manual Model Part No Language KEH P490 X1M UC CRD3090 English French CRD3091 English French KEH P4900 X1M UC CRD3088 English French Spanish CRD3089 English French Spanish KEH P4950 X1M ES CRD3083 English Spanish Portuguese B CRD3084 Chinese Arabic CRD3085 English Spanish Portuguese B Chinese Arabic KEH P490 P4900 P4950 2 2 EXTERIOR 1 EXTERIOR SECTION PARTS LIST Mark No Description Part No 1 Screw BSZ26P050FMC 2 Screw BSZ30P050FMC 3 Screw BSZ30
35. 1 MA151WA 5 CEL1549x5 4 97MHz EJECT DISP 14V 48 51901 1 51922 L L1901 o gt CSG1041 0501111 KSTO L1902 VOL EQ EN VOL 1902 1 51903 51904 51905 L 1903 4 C C C C C C et CSG1111 CSG1111 CSG1111 CSG1111 K K K 1 L1904 3 2 1 SOURCE 1906 1907 1908 1 51909 L 4 C C 4 C C 1905 561111 561111 ee AA KST2j 1 4 pM GB 6 CLOCK 51910 1 I 51912 1913 1 I C 4 6561111 CSG1111 561111 CSG1111 I gt V AUDIO RPT NEN IL C KST4 51914 51915 51916 1917 C501119 CSG1111 CSG1111 CSG1111 51918 L s1919 51920 _4 1921 ___ I C o o KST5 6561110 561111 6561110 0561041 KDT1 1 2 3 4 KEH P490 P4900 P4950 3 5 CASSETTE MECHANISM MODULE beck UNIT s oun CN252 Vref 5 be SR C256 aryl 5 R258 8 82 18 C253 330P 801 1K P C CC 10 CC C 0 e CI CI 5615 gt R283 NAN NN OL NS z Rev L 1 5 22 55 2 4 T
36. 132 R 209 RS1 16S471J L 6 Inductor LCTBR15K1608 R 214 51 165822 L 51 Ferri Inductor LAU150K L 201 Ferri Inductor LAU4R7K 5215 851185822 1 R 217 RS1 16S102J L 202 Ferri Inductor LAU330K R 231 RS1 16S272J L 203 Inductor CTF1287 R 232 RS1 16S473J L 208 Inductor LAU121K R 237 51 165103 231 Inductor LCTA3R3J3225 T 31 CTE1117 238 RS1 16S104J R 239 RS1 16S104J Bb CIC1159 R 240 RS1 16S332J CF 51 Ceramic Filter CTF1441 il R 241 RS1 16S202J CF 52 Ceramic Filter CTF1441 R 243 RS1 16S183J CF 53 Ceramic Filter CTF1441 R 244 RS1 16S392J R 247 RS1 16S123J 37 KEH P490 P4900 P4950 Part No Circuit Symbol and No Part Name Part No CAPACITORS 209 50 104 16 211 CCSRCH101J50 1 CCSOCH6ROD50 C 212 CEJA470M6R3 2 5 2 0 50 213 CKSRYB103K25 C 4 CCSRCH820J50 216 CCSRCH101J50 C 6 CCSRCH820J50 8 CKSRYB103K25 C 217 CEJA1R5M50 C 219 CCSRCH471J50 C 9 5 104 16 220 CKSRYB103K25 10 CCSRCKR50C50 C 230 CKSRYB103K25 C 11 1 0 50 C 231 CCSRCH330J50 12 5 222 50 C 13 CKSRYB222K50 C 232 CCSRCH150J50 233 5 104 16 14 CCSRCH220J50 C 234 CEJA330M 10 C 15 CCSRCH6R0D50 C 235 CKSRYB332K50 C 16 CCSRCH8R0D50 C 236 5 473 16 17 5 222 50 C 18 CKSRYB103K25 C 237 CCSRCH120J50 239 CKSRYB472K50 19 5 222 50 C 240 CEJAR47M50 20 CKSRYB222K50 241 5 104 16 C 21 CEJA100M16 C 242 CEJAR47M50
37. 2 1 1 20982 gt E ES RSS 324 EE MIdNAL 29 lt 54 00 M L 2 009 z yam o LAdNAL sel CT IV SAS I N 814551 2 1444 2 T 2 7 Tadd 4 2 020704 D 2 dd AS 4 012551 15 lt 9 1090 gt Tas SSAV M 0V gt C c 8SN3SV 18 594694 gt oanasy 1 uu Td 083 7294 ZHNZ L INANA ule 00d 089 5598 7171552 LZSY Wd ggg 0698 54 9759 109 089 m d 54 3 lalz gee nr S E SE 15 Snes DS 222 ech STA ELA sz 13 KEH P490 P4900 P4950
38. 35 01515 8 0015 4 0935 72935 5935 4 935 p 1935 22915 fer 8935 9 2525 5 092 SE 535 SERGE 10935 9535 D 2 QD D 2 CN 5 Q5 5 AST 9535 4 M CI oy ON CI I 7935 0 LAR 539 LO an t 9 t ca co 0 935 9 0402 NOJ 9 ZNO Woo 7 0402 lt 09 betur 20 5 6 7 8 KEH P490 P4900 P4950 KEYBOARD UNIT FN cen CN1 301 1901 2R2K 3 k P490 UC 81402 2R2K pot 4 gt gt gt gt gt gt gt gt gt gt gt gt 1 I SW5V ia REMOTE 11902 m 6 gt I CONTROL 85 140 i 4 Ls _ DEENS 8 5 1 I SENSOR 1 81901 GND 1 I 1 MA151WK och 81912 ILM 5 4 900 UC 2R2 Dag 120 gt e 950 ES i MI 7 gt
39. 3R3M50 S 1917 Push Switch CSG1111 C 158 CKSYB474K16 S 1918 Switch CSG1110 C 159 CEJA220M6R3 S 1919 Push Switch CSG1111 C 160 CKSOYB104K16 S 1920 Switch CSG1110 C 161 CKSOYB104K16 S 1921 Switch CSG1041 C 162 CEJA3R3M50 S 1922 Push Switch CSG1111 C 163 CKSRYB102K50 IL 1901 Lamp 14V 40mA CEL1549 170 CCSRCH100D50 IL 1902 Lamp 14V 40mA CEL1549 C 201 CCSRCH471J50 IL 1903 Lamp 14V 40mA CEL1549 C 202 CCSRCH100D50 IL 1904 Lamp 14V 40mA 1549 C 203 CKSRYB332K50 IL 1905 Lamp 14V 40mA 1549 C 204 5 473 16 LCD1901 LCD CAW1563 205 CKSOYB473K16 C 206 5 104 16 C 207 CCSRCH560J50 38 KEH P490 P4900 P4950 Circuit Symbol and No Part Name Part No Part No RESISTORS CAPACITORS R 1901 RS1 10S222J C 251 CKSRYB331K50 R 1902 RS1 10S222J C 252 CKSRYB331K50 R 1903 851 105472 253 CKSRYB331K50 R 1904 RS1 10S473J C 254 CKSRYB331K50 R 1905 RS1 10S473J C 255 CKSRYB103K50 R 1906 RS1 10S473J 256 CKSRYB103K50 1907 RS1 10S473J 272 5 104 16 1908 RS1 10S473J C 273 220 16 1909 RS1 10S473J C 301 5 104 16 1910 4900 1 RS1 10S473J C 302 5 104 16 KEH P4950 X1M ES RS1 10S473J C 313 CCSRCH101J50 1911 KEH P490 X1M UC RS1 10S121J C 351 5 224 25 1912 KEH P490 X1M UC RS1 10S2R2J C 352 CKSRYB392K50 C 353 CKSRYB103K50 CAPACITORS C 354 CKSRYB103K50 C 1902 50 104 16 355 5 104 50 C 1903 KEH P490 X1M UC CEAL100M16 C 356
40. 4 nw 401 2029 18 40 09 lt gt 5 BE Su SL 2 8 5 5 5 wer Lu 82 1l 51 4 S 3 Wzuz LH eH gt 2 1 GEJ 5 5 za 18 5 6 um 7 8 KEH P490 P4900 P4950 amp a zi w SE R UNIT 3 bP 2 35 5 5 0 0 0 0 0 ka 1 1 160 2R2K 8 gt 3 3 25 LPF LOOP 24 3 3V 5 1 AM ale al L E 295 3 8426 LPF LOOP F22H 3Y z Mm 22 AM DET OV Auto 2 IFC H 8 von monoj REQ MO STIND 22 vist T X151 CS51365 30 y gt 85s AMIN 21 jt D 512 1 4 gt R161 SEK cim 10P 1 S N j 2 0 ad g 9V 65486 29 DDSSENS Rch 20 gt X151 918 5Hz d 3 C160 gt Ei 2 DN 1 1 7050 Lch 19 8 R162 1M 5 1V 55481 1 54 d mez 5 5 247 50 ENN AFGND 18
41. 4EK 302 RS1 10SOROJ Q 401 Transistor 25 2412 R 310 51 105103 505 Transistor DTA124EK 31 RS1 10S152J 506 Transistor DTC114EK R 318 RS1 10S103J 0 601 Transistor 2SA933S 319 51 105221 Q 701 Transistor 2SA1037K 320 RS1 10S101J 702 Transistor DTC114EK 321 RS1 10S223J 0 901 Transistor 2SC1740S 322 RS1 10S153J 902 Transistor 2SC2412K 323 RS1 10S103J 903 Transistor 2SD2037 325 RS1 10S821J 904 Transistor 2SD2396 326 RS1 10S821J 0 905 Transistor 2SB1238 327 RS1 10S223J 906 Transistor 2SC1740S 328 RS1 10S223J 907 Transistor 2SA1048 333 RS1 10S101J 908 Transistor DTC114TK 334 RS1 10S101J 909 Transistor 2SA1048 335 RS1 10S223J 910 Transistor DTC114TK 336 RS1 10S223J 911 Transistor 2SC2412K 337 RD1 4PU102J 920 Transistor DTC114ES H 338 RD1 4PU102J 921 Transistor DTA124ES R 342 RS1 10SOROJ D 301 Diode 155270 401 See Contrast table D 302 Diode 155270 R 402 RS1 10S162J D 401 Diode 1SS270 R 403 RS1 10S162J D 402 Diode 1SS270 R 404 RS1 10SOROJ D 601 Diode 1SS270 R 405 See Contrast table D 602 Diode 1SS270 R 406 RS1 10S102J D 603 Diode 1SS270 R 407 RD1 4PU222J 604 Diode 155270 408 RS1 10S222J D 605 Diode 1SS270 R 410 RS1 10S102J D 606 Diode 155270 412 RD1 4PU103J D 607 Diode 1SS270 R 413 RS1 10S393J D 608 Diode 155270 R 417 RS1 10SOROJ D 901 Diode HZS7L C2 418 RS1 10SOROJ D 902 Diode 1SR139 400 R 419 RS1 10SOROJ D 903 Diode 1SR139 400 R 502 RS1 10
42. 5 DER 4 26 wen C501 8 DTC114EK 1 d 8573 888 27 7 Es 7 FMOUT m EE 28 PLL IC 6 R635 5 RIK R aul 5 1 1 1 8524 10K 4 T ST 5 5 ZES S3 2 TE E gez EE ED E als SN 2 Lal ELI SL eye 512 5181 E I ae 2 1 50 5 R R629 588 pp 1 R526 L R630 680 5 8527 389 3R9K 551474 8633 680 200 7 2M82 R634 580 oc 1 1 ASENB EE ASENSB 2 VDD 4 5 4 I NSS 58100 Divi C 6 1 ST 5 sr 1 55210 AVREF KYDT 8 1 8 9 R412 0402 2 s DPDT S 710 10K 155270 CM 1 PDL T TUNPD I TUNPCI C 602 52505 PCE 14 uer n or EURRG 15 umm 2 2 5 2 25 5 E op Ha D Tx e gt sav ROUT 181 3 8V LOUT 19 313 9485 vec 454 ND ells R616 2R2K ys RIT 22K IL Ve gt R618 LM 1 2 8615 mon 1 SCH ML Lus REST 2R2K 9 H 9 vw uM 8621 2R2KTD 11111 4 O o 12112 1 8822 282 5 LU PS 1341 8623 2R2K ES RES 14414 R624 2R2KNES 1 R625 62 6116 R626 sti 17417 mI MMMM 18118 DEE 1 8628 2R2KSTBY 19419 1 CN1901 8 UP 2 2 29 1 LILM2 CN251 pss KYDT i KEYBOARD UNIT SE I swsv 4 gt 2 gt 22 2 oses
43. 5 ele 2 NL Dude 1711 0920 gt z EI 056M5 TC114E5 z EIE E era mS fios mv SiN Of Of inp Of 0 ars OIA e e S e o v o TH TA m 12 BLACK GND 552091 R923 HZSSL 12 210 60 t 42 lt RESET d TUK 0908 8 3V 0944 2502396 14 3 Ne 2053 0885 d 5 EZ f Rott 2581238 Ta 1 OMNES 8914 Ra12 25611405 20 NC E 0986 OK Tek T SYSPW 7 SYSTEM CONTROLLER gt ge ate REGULATOR 2541048 erg r 6 0 1 WOSENS 1 _ 85605 8816 Ha R902 090 TNUTE 0881 DRST 2 onl R906 25011405 22K enn SS gl Ux ZUS De NC 5 2 1 x P 5 II 8 5 ASENS 9 HZS7L A1 1 q BLUEALTE B REMOTE ex smr AM 5 m m R303 0904 8985 RED gt 2 2 ACC CE NC Ky 07 1141 280241 2k NES 285 alls PEE RES 5 0701 Pos VDD SWITCH 1 3 LORDSW 0601 2549335 aj 3 PLAY xm 22k esbSseuuezze e988 gt 8125 1 9252 295295955 gt 256555950 m 0702 99 56095 922 HE ns I Chr DTC114EK BUS1 BUS 4 LE 15R139 400 20 3 0903 9 4 vd 1 E 8952 5 28 8 1 6 zn 8849 2 E gt 7 2 1 1 SE 1
44. 50 lt a m HM eV ee ce 0 6 01106460 Ke 2427 2 pue 5 1 diuo spew I mee e 6 01 OQUIA d se eue P Loue VEOVEUOE 8 5 Son e 4 40106460 pue 54015158 e3euos p mcer gt M c cp 015 59 40 siulod pue 64015169 diuo epeu uoIl3e 3u94941j p ON 40151682 Saleolpul OqUAS 1 310 LOLN2 58 2 25 02 212 gt II 71509 masas Tw 5 E d aL 94 T eng zasna 1294 m
45. 5914 921008 94 YMS euuojue OL 9 1IM 51 gt spuojxo euuojue ojn y 5 120 Teuruurel 033409 AeTeIBUuuslue olnV 8 122 st sjonpord sp UYM e AO ol 198 st 04 x qv UAM TeAeld ur 198 ST ou uou dD QInIN ur 199 81 eurzeSeur OU UYM jonpoud sty ur 199 st ou M jonpo d sty peloeuuoo jou sr ooinos YLI 4 e 8 JOU INOS sasvd SUIMOT OJ UJ e sm Aq oq pun ouo ATuO 3onpoud Aq suonoung orseq jo o uoo so qeuo 921108 se ajqned uroour IY o qe reA ouo se 0 SIOJOI VUN e 930N Joleolpul pueg HHO qdD DInN osrp 900 49 deL 0 100 840 lt UnL 90109 SUIMOT OJ 9oInos 5129195 001100 Jo 55914 Yard 181101007 alouled e JequnN 195914 AJuanbag lt puq 4 ed eder ung lt osrp ouo SIET ze 10010 8
46. 6S331J R 40 RS1 16S470J R 51 RS1 16S271J R 52 RS1 16S560J R 55 RS1 16S102J R 56 RS1 16S823J R 61 RS1 16S392J R 62 RS1 16S273J R 101 RS1 16S272J R 102 RS1 16S682J R 103 RS1 16S333J R 104 RS1 16S334J R 105 RS1 16S683J R 107 RS1 16S222J R 151 RS1 16S222J R 152 RS1 16S393J R 155 RS1 16S273J R 156 RS1 16S243J R 157 RS1 16S203J R 160 RS1 16S222J R 161 RS1 16S563J R 162 RS1 16S105J R 163 RS1 16S223J 202 RS1 16S223J 203 RS1 16S225J 204 RS1 16S103J 206 RS1 16S220J 207 RS1 16S101J 208 RS1 16S102J 209 RS1 16S471J 214 RS1 16S822J 215 RS1 16S822J 217 RS1 16S102J 231 RS1 16S272J 232 RS1 16S473J 237 RS1 16S103J 238 RS1 16S104J 239 RS1 16S104J 240 RS1 16S332J 241 RS1 16S202J 243 RS1 16S183J 244 RS1 16S392J 247 RS1 16S123J 36 CAPACITORS 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 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 C C C C C C C C C C C C C 10 11 12 13 14 15 17 18 19 20 21 22 23 24 25 26 31 32 33 34 51 52 54 55 56 57 58 59 60 61 62 63 101 102 103 104 105 106 107 151 152 153 154 157 158 159 160 161 162 163 170 201 202 203 204 205 206 Part CCSOCH6ROD50 CCSRCK2RO0C50 CCSRCH820J50 CCSRCH820J50 CKSRYB103K25 CKSQYB104K16 CCSRCKR50C50 CEJA1ROM50 CKSRYB222K50 CKSRYB222K50 CCSRC
47. 9 X2 O C Oscillator output 70 X1 Oscillator input 44 KEH P490 P4900 P4950 Pin No Pin Name Format Function and Operation 71 GND GND 72 NC Not used 73 TESTIN Test program mode input 74 AVDD A D converter analog power supply VDD 75 AVREFO converter standard voltage input 76 SL Signal level input 77 78 MODEL2 1 Model select input 79 80 NC Not used PE5086A Format Meaning C C MOS IC s marked by are MOS type Be careful in handling them because they are very liable to be damaged by electrostatic induction 45 KEH P490 P4900 P4950 Pin Functions PD6278C Pin No Pin Name y o Function and Operation 1 5 SEG4 0 0 LCD segment output 6 9 0 0 LCD common output 10 V3 LCD drive power supply 11 14 KS4 1 0 Key strobe output 15 16 KD1 2 Key data input analogue input 17 REM Remote control reception 18 RXD System micro computer UART communication data input 19 RST System reset 20 TXD 0 System micro computer UART communication data output 21 MODA GND 22 X0 Crystal oscillator connection pin 23 X1 Crystal oscillator connection pin 24 VSS GND 25 26 4 Key data input 27 28 KS6 5 0 Key strobe output 29 55 SEG39 13 0 LLCD segment output 56 VCC Power supply 57 64 SEG12 5 0 LCD segment output PD6278C 64 49
48. C 235 CKSRYB332K50 R 10 RS1 16S223J R 11 RS1 16S124J C 236 CKSOYB473K16 C 237 CCSRCH120J50 R 13 RS1 16S563J C 239 CKSRYB472K50 R 15 RS1 16S271J 240 CEJAR47M50 R 16 RS1 16S104J C 241 CKSOYB104K16 R 17 RS1 16S332J R 18 RS1 16S332J C 242 CEJAR47M50 C 243 CEJAR33M50 R 31 RS1 16S470J C 244 CKSOYB473K16 R 32 RS1 16S822J C 245 CKSRYB333K16 R 33 RS1 16S822J C 246 CKSOYB473K16 R 34 RS1 16S331J R 35 RS1 16S331J 250 CCSRCH471J50 R 40 RS1 16S470J Unit Number CWE1486 KEH P4950 X1M ES 8 Unit Tuner Unit R 55 RS1 165102J IC 1 IC PA4023B R 61 RS1 16S392J R 62 RS1 16S273J IC 2 IC PA4024A R 101 RS1 16S272J 1 Transistor 2SC2412K R 102 RS1 16S682J 2 Transistor DTC124EU R 103 RS1 165333J 3 FET 3SK263 0 31 Transistor 2SC2412K 104 51 165334 105 RS1 16S683J Q 201 2SK932 R 107 RS1 16S222J 202 Transistor 2SC2412K 151 RS1 16S222J 203 Transistor DTC124EU R 152 RS1 16S393J D 1 Diode RD39JS D 2 Diode RD39JS R 155 RS1 16S273J 156 RS1 16S243J D 4 Diode 1SV250 R 157 RS1 16S203J D 5 Diode KV1410 F1 R 160 RS1 16S222J D E MATSL R 161 RS1 16S563J D 7 Diode KV1410 F1 D 8 Diode KV1410 F1 R 162 RS 1165105 R 163 RS1 16S223J D 201 Diode MA157 R 202 RS1 16S223J D 202 Diode MA157 203 RS1 16S225J SE Diode VC253 R 204 RS1 16S103J L 2 Coil CTC1133 L 3 Inductor LCTB2R2K2125 2206 d R 207 RS1 16S101J L 4 Coil CTC1133 R 208 RS1 16S102J 5 Coil CTC1
49. CKSOYB103K50 Circuit Symbol and No Part Name Part No Circuit Symbol and No Part Name Part No Unit Number CWE1467 KEH P490 X1M UC 8 GE We KEH P4900 XIM UC 0 201 A Unit Name 5 FM AM Tuner Unit D 231 Diode SVC253 L 2 Coil CTC1133 MISCELLANEOUS L 3 Inductor LCTB2R2K2125 IC 1 IC PA4023B L 4 Coil CTC1133 IC 2 PA4024A L 5 CTC1132 9 1 Transistor 2SC2412K L 51 Ferri Inductor LAU150K 2 Transistor DTC124EU L 201 Ferri Inductor LAU4R7K Q 3 FET 3SK263 L 202 Ferri Inductor LAU330K Q 31 Transistor 2SC2412K L 203 Inductor CTF1287 Q 201 25 932 208 Inductor LAU121K 202 Transistor 2SC2412K 231 Inductor LCTA3R3J3225 Q 203 Transistor DTC124EU T 31 Coil CTE1117 D 1 Diode RD39JS 2 T 51 Coil CTC1159 D 2 Diode RD39JS CF 51 Ceramic Filter CTF1441 D 4 Diode 15 250 CF 52 Ceramic Filter CTF1441 D 5 Diode KV1410 F1 CF 53 CeramicFilter CTF1441 D 6 Diode 157 CF 232 Ceramic Filter CTF1348 D 7 Diode KV1410 F1 35 KEH P490 P4900 P4950 151 Radiator 918 5Hz CSS1365 231 Crystal Resonator 10 26MHz CSS1111 VR 154 Semi fixed 150kQ B CCP1213 RESISTORS R 1 RS1 16S225J R 2 RS1 16S225J R 4 RS1 16S154J R 5 RS1 16S391J R 6 RS1 16S223J R 7 RS1 16S123J R 8 RS1 16S332J R 9 RS1 16S473J R 10 RS1 16S223J R 11 RS1 16S124J R 13 RS1 16S563J R 15 RS1 16S271J R 16 RS1 16S104J R 17 RS1 16S332J R 18 RS1 16S332J R 31 RS1 16S470J R 32 RS1 16S822J R 33 RS1 16S822J R 34 RS1 16S331J R 35 RS1 1
50. CKSRYB103K50 C 401 16 Unit Number EWM1023 402 CKSRYB392K50 Unit Name Deck Unit 403 CKSRYB683K16 MISCELLANEOUS Unit Number Unit Name Reel Sense PCB IC 251 IC 25590 351 2020 D 352 Diode 1SS355 5 1 Switch LOAD ESG1007 S 2 Switch MODE ESG1007 RESISTORS EGN 1 Photo reflector EGN1004 255 RS1 16S221J Miscellaneous Parts List R 256 RS1 16S221J R 257 RS1 16S102J M 1 Motor Unit MAIN EXA1491 R 258 RS1 16S102J M 2 Motor Unit SUB EXA1580 R 271 RS1 16S102J HD 1 Head Assy EXA1506 10 CEK1136 R 272 RS1 16S102J R 273 RS1 16S102J R 274 RS1 16S102J R 281 RS1 8SOROJ R 282 RS1 8SOROJ R 283 RS1 8SOROJ R 284 RS1 8SOROJ R 285 RS1 16SOROJ R 286 RS1 16SOROJ R 287 RS1 8SOROJ R 290 RS1 8SOROJ R 301 51 165183 302 RS1 16S163J R 303 RS1 16S163J R 304 RS1 16S163J R 305 RS1 16S163J R 323 RS1 8SOROJ R 351 RS1 16S102J R 352 RS1 16S102J R 353 RS1 16S102J R 354 RS1 16S102J R 355 RS1 10S274J R 362 RS1 8S301J R 373 RS1 8SOROJ R 374 RS1 8SOROJ R 401 51 165472 402 RS1 16S183J R 403 RS1 16S823J 39 KEH P490 P4900 P4950 6 ADJUSTMENT Connection Diagram BACKUP 14 4V CSC DC Regulated ACC GND Power Supply GND Dummy Antenna Antenna Plug 500 37 50 Q MainAntenna Jack I I I 1 I I Pin26 TUNER AMP UNIT Pin 19 DC V Meter 1 Pi
51. E gt 2 6 t rasna Se 4 A 20 8 Mams 1 Qs e e e 8213 6 gt z S sU y ib L 5764 DE risna alo 9 gt C 2 2 ER L gt L 404 2 5 9 5 sn8 14 5 31003878 1 uS 14 GND 007 55 1951 NI 909 81 20 2 2 2 p e G z L 518 15018 33911214 wht asnasy Te o fw fw fo I I II II fw fy iy 91A S o 3 o 8213 5 15558855589568 322 IS d Jv cpl S556YSZ 1090 01 2 gt 45091 11 5 OCA GERS S p 538 LLL n we lt gt 33 az L 1 S3N US 29v 2 2 Uc 2192252 ariaa Ni on 133 m 2060 8060 8 WV Lv 31003374 L L LV 1152 SNISV 595 15 31IMM 3019 See 5 gl seg Er Er gt gausz yzz 50711252 9053 og 589 K V 1060 2 3 1060 2064 2 040 LS 58158 7 SN3SQN rrey 38358 1 ee 8701 52 as MOLY 10938 ate 2 TT 8 3 iim lt E E S IO AIS x 9311091409 WIISAS WOL NA uy O 14545 es 15 50911252 21 813 1 216 153 SL 99 oc 870162 ON 7 VI ol 6060
52. GND VJEGN1004 RS 7 Nar I R373 ORO Een MTL 44 4 ESG1007 MECHANISM 5 5 C DRIVER j 1 18 6 5 1 1 2 8 S1 LOAD Loes wel 0 4 2 Y ESG1007 R290 0RO 12 aso lt RRS 8r 13 8 8 REEL SENSE tc 14 sca N rsp C403 R068 DCH 1554 EN 4 _ 8403 82K lt 22 us 2 254 idee 1 5 2 2 SM2 LA 17 4 a EN M2 1 Ner pil MOTOR UNIT 1 Gei 3 SUB MOTOR Nr 8 EXA1580 19 e 2 SM1 vec 1 a 20 mm CH 4 R374 ORO ZA 5 2 2 2 501501 ell zl 3 878 8 8 cle oc e 9 5 SC I 5 C356 R01 1 8 5 4 SWITCHES 8 PCB UNIT feeb RT 4 4 I S1 LOAD SWITCH EJECT PLAY S2 MODE SWITCH ON OFF The underlined indicates the switch position I zON Om o rom D RR euo gt co gt moog a nw gt 23 2 3 um 4 1 490 4900 4950 4 CONNECTION DIAGRAM 4 1 TUNER UNIT NOTE PCB DIAGRAMS CORD ASSY 1 The parts mounted this include all necessary parts for several destination For further information for respective destinations be sure 9904 to check with the schematic dia gram 2 Viewpoint of PCB diagrams 9912 0905 0905 Connector Capacitor Q915 SIDEA Q921 9901
53. H220J50 CCSRCH6ROD50 CCSRCH8ROD50 CKSRYB222K50 CKSRYB103K25 CKSRYB222K50 CKSRYB222K50 CEJA100M16 CCSRTH9ROD50 CCSRTH120J50 CCSRCH471J50 CKSRYB103K25 CCSRCH101J50 CKSRYB103K25 CKSQYB472K50 5 5 0 50 5 104 16 CCSRRH201J50 CKSRYB223K25 CKSRYB103K25 CCSRCH470J50 CKSQYB223K25 CKSQYB104K16 CKSRYB472K50 10 CKSRYB103K25 CKSRYB102K50 CCSRCH270J50 CKSRYB103K25 CEJAR22M50 CEJANP100M10 CKSRYB182K50 CKSRYB682K25 CEJA2R2M50 CKSRYB103K25 CCSRCH151J50 CKSRYB103K25 CKSRYB472K50 CKSOYB104K16 CEJA3R3M50 CKSOYB104K16 CEJA3R3M50 CKSYB474K16 CEJA220M6R3 5 104 16 CKSOYB104K16 CEJA3R3M50 CKSRYB102K50 CCSRCH100D50 CCSRCH471J50 CCSRCH100D50 CKSRYB332K50 CKSQYB473K16 CKSQYB473K16 5 104 16 KEH P490 P4900 P4950 Symbol and No Part Name Part No Circuit Symbol and No Part Name Part No C 207 CCSRCH560J50 CF 232 Ceramic Filter CTF1348 C 209 CKSOYB104K16 151 Radiator 918 5 2 551365 211 CCSRCH101J50 231 Crystal Resonator 10 26MHz CSS1111 212 CEJA470M6R3 VR 154 Semi fixed 150kQ B CCP1213 213 CKSRYB103K25 RESISTORS C 216 CCSRCH101J50 C 217 CEJA1R5M50 R 1 RS1 16S225J C 219 CCSRCH471J50 R 2 RS1 16S225J C 220 CKSRYB103K25 R 4 RS1 16S154J 230 CKSRYB103K25 R 5 RS1 16S391J R 6 RS1 16S223J 231 CCSRCH330J50 232 CCSRCH150J50 R 7 RS1 16S123J 233 5 104 16 8 RS1 16S332J C 234 CEJA330M10 R 9 RS1 16S473J
54. L IC data output 13 TUNPCK PLL IC clock output 14 TUNPCE PLL IC chip enable output 15 CURRRO O C Tuner voltage FIX output 16 NC Not used 17 TX 0 C IP BUS data output 18 12 NC Not used 22 VST Strobe pulse output for electronic volume 23 Clock output for electronic volume 24 VDT 0 C Data output for electronic volume 25 28 NC Not used 29 FM 0 C FM power control output 30 AM 0 C AM power control output 31 CM Cassette mechanism capstan motor control output 32 NC Not used 33 55 GND 34 SC2 0 C Cassette mechanism sub motor control output 35 1 0 C Cassette mechanism sub motor control output 36 MS Cassette mechanism MS sense input 37 MCMUTE Cassette mechanism mute input 38 MTL Metal sense input 39 NC Not used 40 N R 0 C Normal reverse output 41 PLAY 0 C Tape MS filter select output 42 LOADSW Tape loading input 43 POS Cassette mechanism position sense input 44 RES Cassette mechanism reverse end sense input 45 PEE O C Beep tone output 46 NES Cassette mechanism forward end sense input 47 NC Not used 48 STBY O C Stand by output 49 52 NC Not used 53 SD SD input 54 MUTE O C Mute output 55 SYSPW 0 C System power supply control output 56 59 NC Not used 60 RESET Reset input 61 RX IP BUS data input 62 NC Not used 63 DSENS Grille detach sense input 64 TELIN Cellular input 65 ASENS ACC power sense input 66 BSENS Back up power sense input 67 CLKIN Clock sense input 68 VDD VDD 6
55. P200FMC 4 Cord Assy CDE6222 5 Fuse 10A CEK1136 6 Transistor Q904 2502396 7 Case 2350 8 Holder 5704 9 Cushion CNM5210 10 Insulator CNM5963 11 Panel CNS5132 12 Tuner Amp Unit See Contrast table 2 13 Screw 726 080 14 Screw BSZ26P080FMC 15 Screw BSZ26P160FMC 16 FM AM Tuner Unit See Contrast table 2 17 Holder CNC6554 18 Pin Jack CN301 CKB1035 19 Plug CN603 CKM1270 20 Connector CN701 CKS3408 21 Connector CN602 CKS3568 22 Connector CN601 CKS3581 23 Antenna Jack CN402 CKX1056 24 Panel CNB2343 25 Holder CNC5399 26 Holder CNC6845 27 Holder CNC7996 28 Heat Sink CNR1505 29 Holder Unit CXB2687 30 Chassis Unit CXB3012 31 02 TDA7384 32 Remote Control Unit See Contrast table 2 33 Cover See Contrast table 2 34 Button CAC4836 35 Spring CBH1834 2 CONTRAST TABLE KEH P490 X1M UC KEH P4900 X1M UC and KEH P4950 X1M ES are constructed same except for the KEH P490 P4900 P4950 67 Grille Sub Assy Mark No Description Part No 36 Spring CBH1835 37 Spring CBH2182 38 Bracket CNC6135 39 Bracket CNC6791 40 Arm CNV4692 41 Arm CNV4693 42 Arm CNV4728 43 Panel Unit CXB4927 44 Door CAT2109 45 Spring CBH1838 46 Screw IMS20P030FZK 47 Detach Grille Assy See Contrast table 2 48 Screw BPZ20P100FZK 49 Button DETACH CAC5789 50 Button 1 6 CAC6239 51 Button SOURCE CAC6241 52 Button CAC6242 53 Button CAC6243 54 Button AUDIO CAC6245 55 Button EQ CAC6247
56. Pioneer Service Manual ORDER NO CRT2398 MULTI CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM AM TUNER X1M UC KEH P490 X1M UC KEH P4900 xw KEH P4950 This service manual should be used together with the following manual s Model No Order No Mech Module Remarks CX 1011 CRT2406 3L Cassette Mech Module Mech Description and Greasing Disassembly Adjustment This service manual does not describe the CD test mode For the operations in the CD test mode refer to the CD player s Service manual CONTENTS T SAFETY INFORMATION nnne 2 7 GENERAL INFORMATION 42 2 EXPLODED VIEWS AND PARTS LIST 2 TAU DISASSEMBLY tette 42 3 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 9 7 2 PARTS 43 4 PCB CONNECTION DIAGRAM 24 L Dale 43 5 ELECTRICAL PARTS LIST 33 7 2 2 DISPLAY cniin nes 47 C C 40 8 OPERATIONS AND SPECIFICATIONS 48 PIONEER CORPORATION 4 1 Meguro 1 Chome Meguro ku Tokyo 153 8654 Japan PIONEER ELECTRONICS SERVICE INC 1760 Long Beach CA 90801 1760 U S A PIONEER ELECTRONIC EUROPE N V Haven 1087 Keetberglaan 1 9120 Melsele Belgium PIONEER ELECTRONICS ASIACENTRE PTE LTD 253 Alexandra Road 404 01
57. S102J D 904 Diode HZS7L A1 H 503 RS1 10S222J D 905 Diode 1SR139 400 R 506 RS1 10S182J D 906 Diode HZS6L B2 R 511 RS1 10SOROJ D 907 Diode HZS9L B3 R 512 See Contrast table 33 KEH P490 P4900 P4950 Part No Circuit Symbol and No Part Name Part No 513 RS1 10S102J 725 RD1 4PU472J 514 RS1 8S0R0J 72 RS1 10S222J 515 RS1 10S562J R 901 RS1 10S473J R 517 RS1 10S473J R 902 RS1 10S223J R 518 RS1 10S152J 903 RS1 10S223J 519 RS1 10S472J R 904 RS1 10S473J R 520 RS1 10S472J 905 RD1 4PU102J 521 RS1 10S472J 906 RD1 4PU473J 523 RS1 10SOROJ 907 RS1 10S473J 524 RS1 10S103J 908 RS1 10S472J R 525 RS1 10S152J 909 RS1 10S332J R 526 RS1 10S392J R 910 RD1 4PU101J 527 RS1 10S392J 911 RS1 10S102J 528 RS1 10S472J R 912 RS1 10S103J 529 RS1 10S473J 913 51 105103 531 RS1 10S104J R 914 RS1 10S222J 532 RS1 10S473J R 915 RS1 8S103J 535 RS1 10S102J R 916 RS1 10S103J R 601 RS1 10S124J 917 RS1 10SOROJ 604 RS1 10S473J R 919 RS1 10S102J 607 RD1 4PU102J 920 RS1 10S103J R 610 RS1 10S473J R 921 RS1 10S152J R 611 RS1 10S473J 922 RS1 10S102J R 612 RS1 10S473J R 923 RS1 10S103J R 613 RS1 10S473J R 924 RS1 10S223J R 614 RS1 8S103J R 932 RS1 10S473J R 615 RS1 10S392J 944 51 105152 616 RD1 4PU222J 949 RS1 8S1R0J 617 RD1 4PU223J R 955 RD1 4PU473J 618 RD1 4PU222J CAPACITORS 619 RD1 4PU222J 621 RS1 10S222J 303 CEJA470M10 622 RS1 10S222J 304
58. Singapore 159936 O PIONEER CORPORATION 1999 K ZZB OCT 1999 Printed in Japan KEH P490 P4900 P4950 1 SAFETY INFORMATION CAUTION This service manual is intended for qualified service technicians it is not meant for the casual do it yourselfer Qualified technicians have the necessary test equipment and tools and have been trained to properly and safely repair complex products such as those covered by this manual Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty If you are not qualified to perform the repair of this product properly and safely you should not risk trying to do so and refer the repair to a qualified service technician WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer birth defects or other reproductive harm Health amp Safety Code Section 25249 6 Proposition 65 2 EXPLODED VIEWS AND PARTS LIST 2 1 PACKING NOTE KEH P490 P4900 P4950 Parts marked by are generally unavailable because they are not in our Master Spare Parts List Screws adjacent to V mark on the product are used for disassembly PACKING SECTION PARTS LIST Part No Mark No Description KEH P490 X1M UC KEH P4900 X1M UC KEH P4950 X1M ES 1 Accessory Assy CEA2350 CEA2350 CEA2350 2 Spring CBH1650 CBH1650 CBH1650 3 Screw Assy CEA235
59. e 93 gt LL AGL 9 En ZN SV ss 5 e C C gt 95 5 AETL L ir lt 5 gt 2 9 9 02 au 4 aren 2 1 ML 6 5006 NV 4 3 S mh Hd sonal 18 ie ES E I Slo M N EREW aks mg 2 S 0150 ADL 3021 081255172090 8 4 yN 9 k lt Dog 3 N NF 64 04252 51 15 3 one un Ss ac ums Sate Sc ALLEY LILO Se 5 T t sts Bib Sgpz v 3dVlL 4 2 ju m gt e vo e nares ae 2 lt 2 MVV9I 8 5 arr 5 se 20991 Be Tr tere L 31591310 8820 08 08 292 INIVLdY9 4 4 LONII 11 wu 355 222 5 2 SSS So Sk Sox 1 IND IND S po N I gt gt gt gt gt LINN dINV ek E E R E mE 1 Ax uori3euBisop 2 10 561464 aen 01 euns 8uioe deoJ 25 1 21 89 ayy 40106 Aigles 941 Sui eu lo 0355 Saleolpul 61464 queuoduoo euos uo eu I Ge 5 05 1 L 8252 HM Y KEH P490 P4900 P49
60. iven 50 to 15 000 Hz with no more than 5 THD Maximum power output Load impedance Preout maximum output level Output impedance 2 2 Equalizer 3 band equalizer 9 6 C6 065 12 dB Mid 12 dB High WE 12 dB Loudness contour 3 5 dB 100 Hz 3 dB 10 kHz 10 dB 100 Hz 6 5 dB 10 kHz 11 dB 100 Hz 11 dB 10 kHz volume 30 dB Cassette player Compact cassette tape C 30 C 90 Tape speed 4 76 cm sec 0 14cm sec 0 05cm sec Fast forward rewinding time Approx 100 sec for C 60 Wow amp flutter sse 0 09 WRMS Frequency response 30 16 000 Hz 3 dB Siereo separation Eege 45 dB Signal to noise 61 dB IHF A network FM tuner KEH P490 X1M UC KEH P4900 X1M UC Frequency range Usable sensitivity 1 0 uV 75 Q mono S N 30 dB 50 dB quieting sensitivity 16 dBf 1 7 uV 75 mono Signal to noise ratio Distortion 70 dB IHF A network 0 396 at 65 dBf 1 kHz stereo Frequency response 30 15 000 Hz 3 dB Stereo separation 40 dB at 65 dBf 1 kHz See 70 dB 2 Three signal intermodulation desired signal level 50 dBf two undesired signal level 100 dBf FM tuner KEH P4950 X1M ES Frequency range Usable sensitivity 87 5 108 MHz 11 dBf 1 0
61. n14 Pin13 DECK UNIT FM AM TUNER UNIT Pin1 40 KEH P490 P4900 P4950 FM ADJUSTMENT UC MODEL Modulation M MONO MOD 400Hz 30 22 5kHz Dev or 400Hz 100 75kHz Dev S STEREO MOD 1kHz L or R 30 20 25kHz 7 5kHz Dev NOTE Before proceeding to further adjustments after switching power ON let the tuner run for ten minutes to allow the circuits to stabilize FM SSG Displayed Adjustment Adjustment Method No Frequency MHz Level dBf Frequency MHz Point Switch Position TUN Volt 1 107 9 15 DC V Meter 1 6V IF 2 98 1 M 60 100 98 1 T51 Center Meter 0 ANT Coil 3 98 1 M 5 98 1 L2 mV Meter 1 Maximum RF Coil 4 98 1 M 5 93 1 14 mV Meter 1 Maximum IFT 5 98 1 M 5 98 1 T31 mV Meter 1 Maximum STEREO MODE ARC 6 98 1 40 98 1 VR154 mV Meter 1 Separation 5dB STEREO MODE FM ADJUSTMENT ES MODEL Modulation M MONO MOD 400Hz 30 22 5kHz Dev or 400Hz 100 75kHz Dev S STEREO MOD 1kHz L or R 3090 20 25kHz 7 5kHz Dev NOTE Before proceeding to further adjustments after switching power ON let the tuner run for ten minutes to allow the circuits to stabilize FM SSG Displayed Adjustment Adjustment Method Frequency MHz Level dBf Frequency MHz Point Switch Position TUN Volt 1 2 108 0 L5 DC V Meter 1 6V IF 2 98 1 M 60 100 98 1 T51 Center Meter 0
62. ns uonededo e 4 EN Jo8uo 10 5 5 suojnq 9 01 I 88914 01 2510 P S 0 JULM pue palosuuoo st IJ9Aeld IA TI UAM e 9 0N 0 U3jSI JUBA 01 Jaquinu 55914 jsnf 50111 9 03 IY 5251 PAPS UVI 99 9S1Q ZL 510 9 101 49qunN 2510 10 2000 380 21 Jaquinw 2510 JagunN 109 2510 Suisso1d onunuo 1884 YA 55 JO spuooos 60 eur JO uj3uo lt 4 155 Aq ISIJAJY PIEMIO A 356 10 UIJMIIG 129195 4 1524 pue q21eag Kpoje1edos pros 19 CI9 q n n A o 9uoo sL 19 6I 12 11 10 V0I 619 0 21524 uopnq CNV eui 81588914 Aq po ooueo oq ASN ISL jonpoud sm ur ojjosseo ay Dam oq ou 12815 uonoauq 301
63. rsn suoroouuoo 9594 4 06 SIeyeads ol pojoouuoo jou 16V 5 jou gt gt gt 9 9 _ ___ 0I91 5 Ieyeads YIM 66 2X29 9 19 0 8C 4219 1910 oc eA OT MOTI2A 9 IOLA LZ 12910 9 W 11024 61 xovIq Ae10 ERGEIOD AA ZZ 10014 61 018 yoeI9 c MYM TZ Joyeods 1483781 Jeyeeds pos 91 Apoe1edos pros cr ZI 006 Xen qo BInIN 7 omy 10 dure youl euuojuy JO purua 029903 18 8 OL pT i m i 01002 BUUS UB jndino c TRE 51411 K o1e1edos pos sanid yoy Sp1oo 8 2 71 uonirsod V01I uorrusr jo sse p1e3o1 SAeATe op 01 OG A D Aq pslIonuoo peururo 9 01 79 rau or 9 50 8 1 OPERATIONS KEH P490 X1M UC KEH P490 P4900 P4950 PAUSE BSM button BAND button 4 7 gt EQ button EJECT button buttons Cassette door 8 Buttons 1 6
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