SERVICE MANUAL - Singer Asia Limited
Contents
1.2.
3. ii ERIKA Y 1 r 1 0601 H 782 M2035 0200 2EF565 0601 i x 8604 gt CKX3 3 5 1K 330 FM 603BLM 5904 5902 5903 5904 5905 5906 X903 Bi 8 g Lu Lu Lu Lu Lu Lu 5901 5902 5903 3904 5905 5905 5907 xvo2 52510 2 108 5 597227050 77 25 2688 10 8602 9603 1901 8902 8903 3904 8905 8906 uy KR gt i ER gt 330 3 220 220 330 560 820 2 2K lew uO CKG 3 2_Yellow ans RV12 NOWE R410 une 8 gt 8903 8905 8906 XA06 XA07 150 330 Sag gt T O N 220 4 220 4 330 4 560 4 820 4 CKG 3 3_Red CKG 3 2_Whf t al 300 782 M2035 050
4. 401 CC1 08 SL 63V 271J 402 CC1 08 SL 63V 271J 403 CC1 08 SL 63V 271J C406 RQC05B471K H46CA 407 DE1005B222K2K ELECTROLYTIC CAPACITOR CD110 16V 220uF M 409 CD288 250V 10uF M CARBON RESISTOR 467 1C110 HO 1 6W 1000 J 467 1C110 HO 1 6W 1000 J 467 1C110 HO 1 6W 1000 J 467 1 143 0 1 6W 4300 J 467 1 143 1 6W 4300 J 467 1 143 1 6W 4300 J 467 1C227 HO 1 6W 2 7K J R401 R402 R403 R404 R405 R406 R407 31 R409 467 1 227 1 6W 2 7K J L401 471 1068H 00 ELO606SKI 680J L402 471 2068K 00 SPT0305 680K 5 FRONT AV BOARD 782 M2035 290A vor RVO2 1467 10115 0 RT14 1 4W 1500 J FRONT AV BOARD VD601 HFR205 RED 0601 32 CARBON RESISTOR 33
5. 1000 MONO N t 9 _ Banni MCU RESET 29782 AUDIO OUT 51 250 250VAC _ 8515 czna C235 amp 5 1 R242 4 7N PA 0931 gt 32V I 77 Fsc 0UT1 AUDIO BYPASS 52 OK 1502 2250 50 250VAC 03 0533 MUTE 801 K C240 LF21062 i 777 2 p 53 i uPC574 10u ON CONTROL EXT AUDIO IN 77 gt 50v SDA 40 foo R505 1 8504 5 164 220K SE m SCL 208 C206 EL C236 R24 p243 1205 ma a OK 9 100 100 100n 270 330 Tv i i B 6529 ARE F_ADJ SDA FEED Back 55 8501 470 05152228 6539 RECE y HZ9C3 42200 1 ID OK I i 20 1924 35V 10V s cal CLK CONT 7 29 CLOCK CONT N201 VIF GND 1 66 H RA es 1 E A 100 x501 79 m i 5 2 0514 Y XRAY Tract Fast 2 FAST BLK M61251FP VIF 2 57 8234 4 TRE O 400VAC 400VAC us 9 14148 14 209 77 gt 77 R804 R IN VIF VIDEO OUT 58 1 0509 Whe C537 VOL 10K R813 Y 205 2 6 9 1728 TEU2YX 33
6. BW 10 5 z 470 8235 2 Sate 3 1N4148 2 ee P N PM AAS 3304 czat AGC ET ERRED ERE Dp Reap arog eS 5 C520 10K 234 H 8517 7 8 7 0505 8509 D 4700 A522 AV Y 1 B IN VIF APC FILTER 0 47u 1N4148 j ie 10 R529 a 5 5 69 50V 4709 0540 53V 5 5 61 AN a 0 on 330p api VSYNC PULSE OUT AGC FILTER2 77 4 7K i 9 0503 2 El Y 558 0513 er HSYNC 51 INVERTED FBP IN IF AGC FILTER 62 R112 14148 1 0541 2075 gt C238 4 7K P N i cate 0507 0 22 530 Tsav RERE 25C1815 Y FEOS LK Q 0 474 777 au m 513 8507 0504 552956 100n Ski En HZ6A3 2503807 10 VOLUME MONITOR INTELLIGENT MONITOR VIF IN 1 63 50 102 A H BK HZ16 1 LA 0536 i 10 25 1815 470 1 390p E C101 o 4 l 5007 100u AV1 AV2 17 FEED BACK 2 S VIF 64 e 220 6 8K 10K EN TOR ae 4 a LU a 5 H ES C534 3 Bo 12 E X504 2 2K a O gt a H 502 777 J T 101 8802 ZA R204 5 E E o IF 1LP621 6B V504 32V 27K e 2 2 AM u up 8510 2SC1815 Y 852
7. 10 5 14 8822 0802 10K 2541015 ABCL 55 14148 1 14 VIDEO I C410 R427 28A1015Y c211 Auge H 15V i 4 10u o VREG 1N4148 V803 298 AE BV Lt 19044 7V 2SC2383 0 218 4700 nm ra O 220 10n C220 7 C226 5BUH Cb 9 1 8821 10 R227 ik cate LH 6 i L OUT 1000 a W i 33 En 5 a 4 i R806 0801 22282230 SIF H 1 2 100p 1K 10u 100 1 00 H JR1 M37150 220 H R_IN G201 LT4 5M 2 i 25 0504 R214 3 58M XMO 1 _ a R207 318 1K 2 2 3 YO BE AC 201 aa 5 4 88 5 5 2 e I i 4 OO 25 1815 ESKK RE z Z EE ON O 6 T 1n G u ES H L IN a x 27 5 2 2 A 5 7V n 5 9 1 510 C511 1004 2 55 PORA REG QUT 250VAC 1504 4 70 y 5 5 5 5 5 6502 2508 BAND2 SW OUT u INTERCARRIER OUT C242 4 71 4 71 400V 500 Bt
8. 5 Some parts in this receiver have special safety related characteristics for X RAY RADIATION protection For continuous safety parts replacement should be undertaken only after referring to the PRODUCT SAFETY NOTICE below SAFETY PRECAUTION WARNING Service should not be attempted by anyone unfamiliar with the necessary precaution on this receiver The following are the necessary precautions to be observed before servicing this chassis 1 Since the power supply circuit of this receiver is directly connected to the AC power line an isolation transformer should be used during any dynamic service to avoid possible shock hazard 2 Always discharge the picture tube anode to the CRT conductive coating before handling the picture tube The picture tube is highly evacuated and if broken glass fragments will be violently expelled Use shatter proof goggles and keep picture tube away from the unprotected body while handling 3 When replacing a chassis in the cabinet always be certain that all the protective devices are put back in place such as non metallic control knobs insulating covers shields isolation resistor capacitor network etc 4 When replacing parts or circuit boards disconnect the power cord 5 When replacing a high wattage resistor oxiode metal film resistor on the circuit board keep the resistor 10mm 1 21 away from circuit board 6 Connection wires must be kept away from components with high voltage or high tempe
9. Alignment items and procedure B voltage check RF AGC voltage adjustment Focus adjustment Screen grid voltage and white balance adjustment Horizontal vertical scan center adjustment Horizontal vertical scan amplitude adjustment Pattern correction adjustment Ne 5453 The alignment flow chart see figure below High voltage check RFAGC adjustment X ray protection check Filament voltage check Picture and sound check Sub brightness check Screen grid voltage White balance adjustment White balance check Color purity convergence check Scanning amplitude center 4 raster correction adjustment AV terminal check The TV set 4 remote controller s function check Figure 1 Alignment flow chart Factory adjustment mode 1 B voltage test a Make sure the AC power 15 220 50 Hz b Connect digital voltmeter to test point receive A 7 signal set picture control to DYNAMIC state test B the test voltage should be 100 V0 5 21 PF or 110V 0 5 14 PF AND 21 140V 25 2 adjustment a Receive 60 split field A 7 signal b Use oscilloscope or digital voltmeter to monitor test N201 pin 43 voltage AGC output c enter factory menu select DELAY ADJ by making use of button increase the value from low to high until the voltage just reach 4 0 at this time picture noisy spot should basically disappear otherwise conti
10. i H TFR155 10 L D 5 gt gt gt H H 2 4 lt am LAO E I 1 H t C301 e e 100 ann 863 i 250 7 ion Ge i e314 5 6K TA T 4700 4 an I 2 20 t are NAO2 PARE acid 520 fae TC40528P TC40528P apg baso RA33 Eile i 4 SKS e OW tu HAC 10u 5 6K E 0303 100K 100K 10 x301 ZN R302 SE ANS522 RAZA R102 H T301 10K 3 2777 5 6K 180 v2 Ex C338 2302 0314 5758 LGB 75uH M 552956 W i VIDEO 4 777 3 8 RAQ RASO tt gt gt TV 1K 100 H 11 a VA05 v10 H 8 23 1815 25 1815 2862717 C310 2 lt A gt 5 3900 amp 2 z 8103 8105 8309 4 gt 35 5 RAOS ma 27 1 2K i 2 4 ae R 5 1K 2 2K gt 5 ZE SE 0305 caza TEU2YX 4 C308 77 2 IN N C307 8306 470u 8314 A TIN ZEN EAL 10 i 390 35 EEG v302 H 5 4 XR0961 2562482 H 2 H H 12 gt 777 3 W RA17 RA35 i i 5 0304 C309 C339 0371 0309 v301 REX at
11. 1N4148 TVR 1B 19 0303 340 50500 003 HZ5C1 501 343 18150 114 25C1815 Y VVO1 343 18150 114 25C1815 Y A21 A22 805 RBU07SL331K H46CA 20 SYMBOL PART NO DESCRIPTION 808 459 2133 902 RBUO7SL331K H46CA 459 214 7H 902 1 12 51 63 471 459 2210 002 CK45 B1H102KYR 459 2210 002 CK45 B1H102KYR 459 2310 002 CK45 F1H103ZYR 21 SYMBOL PART NO DESCRIPTION 802 459 2310 002 CK45 F1H103ZYR 459 2310R 002 CK45 F1H103ZYR 459 2410R 002 DD308 63F 104 50 459 5147K 002 RQC05B471K H46CA CC45 CH1H181JYR 459 2410R 002 DD308 63F 104Z50 THIN FILM CAPACITOR 22 09 462 B0422 H02 CL21X 50V 0 22uF J CBB81 1600V 3300PF J C203 462 B0433 HO CL21X 50V 0 33uF J 801 462 90422 50V 0 22uF J CL21X 50V 0 022uF J CD110 50V 0 47uF M 23 SYMBOL PART NO DESCRIPTION 217 464 60510 02 CD110 50V 1uF M 464 60510 02 110 50 1 464 60510 02 CD110 50V 1uF M 464 60610 02 CD110 50V 10uF M 24 305 464 62622 CD288 160V 22uF M RA24 467 1 082 1 6W 820 J 467 1C110 HO3 1 6W 1000 J R205 467 1 110 1 6W 1000 J 467 1 147 1 6W 4700 J 467 1 147 1 6W 4700 J 25 SYMBOL PART NO DESCRIPTION RNO4 467 1 147 1 6W 4700 J 467 1 168 1 6W 6800 J 467 1 212 1 6W 1 2K J 467 1C218 H03 1 6W 1 8K J 26 467 1 268 1 6W 6 8K J 467 1C310 HO3 1 6W 1
12. SERVICE MANUAL 5 X RAY RADIATION 12 aaa aaa 1 SAFETY PRECAUTION PRODUCE E SALE NOTO ee INSTALLATION AND SERVICE 8 6 3 GENERAL INSTRUC TION ALIGNMENT ITEMS AND PROCEDURE cccsssccsscecsccccscccssccescccssscesceesssceescess 3 FACTORY ADJUSTMENT MODE Q ccscccsscccsscccsccsssccscccssccescecssecsscecsceessceeces 4 CHECKING 5 PRESET THE FOLLOWING IN 1 1 1 6 RON 6 CONVERGENCE MAGNET ASSEMBLY 8 COLOR PURITY ADIUSTMEN Tessa ae a 8 CONVERGENCE ADJUSTMENT cscccccsscccsseccscccssscccsssscecssscccscecssceseeceesseescess 8 CENTER CONVERGENCE ADJUSTMENT nen nenne CIRCUMFERENCE CONVERGENCE ADJUSTMENT 9 USA CHANNEL FREQUENCY TABLE 181 10 WIRING BLOCK DIAS RAN cal 13 IE PLOC 14 EEBOTRICAL LIS Rs 19 20 CAUTION THIS SERVICE MANUAL IS ONLY FOR PROFESSIONAL SERVICE PERSONNEL S REFERENCE BEFORE SERVICING THIS CHASSIS FOLLOWING N
13. Before attempting any purity adjustment the receiver should be operated for at least fifteen minutes 1 Demagnetize the picture tube and cabinet using a degaussing coil 2 Set the CONTRAST and BRIGHTNESS controls to the maximum 3 Receive PM5515 monochromatic signal such as to provide a green raster on the screen 4 Loosen the clamp screw holding the yoke and slide the yoke backward to provide vertical green belt zone in the picture screen Remove the Rubber Wedges Rotate and spread the tabs of the purity magnet around the neck of the picture tube until the green D M belt is in the center of the screen At the same time center the raster vertically by adjusting the magnet 7 Move the yoke slowly forward or backward until a uniform green screen is obtained Tighten the clamp screw of the yoke temporarily 5 Check the purity of the red and blue raster 9 Obtain a white raster referring to CRT WHITE BALANCE ADJUSTMENT 10 Proceed with convergence adjustment GLASS CLOTH DEFLECTION YOKE TEMPORARY MOUNTING CONVERGENCE ASS Y WEDGE 30 130 chew a D RUBBER WEDGES AOHESIVE s DEFLECTION YOKE 30 RUBBER WEDGES LOCATION Fig FIG 3 CONVERGENCE ADJUSTMENT NOTE Before attempting any convergence adjustments the receiver should be operated for at least fifteen minutes CENTER CONVERGENCE ADJUSTMENT l Receive crosshatch pattern with a color b
14. Jno Y 1007 AG Ja 7 2 40001 GG ZZZ LV 000 yndy O 1 Is pueg oseg ode ContolSW 14 101291044 guay JO e 9U90 yoegA 4 16 Fig 1 M61251FP block diagram 1no NI 9 NI 9 LLL eo M 9 a NI NI AL U 49019 NIqO O N Er N a IM e 2 OMS O OO OOO H NACE VINOYHO O 3QIA 2 OF Bez JSVHd H NP 527 Buuoluo NIVO 94V 4015 H VINO 7 7 7 7 130 99 W TYLNOZIHOH LNO 498 asing ZISA LHIHS A us A LNnoo dNYHA a HOLVINGOWIA TVOILHJA gt LNO A O MS 39IAM3S 40 110 g 8 1 RSE HOL3YLS Mo 1 INdLno 9 15 INN vNNVe 5 Jay yovid Y UL 112 LNNOO ODAH LNO MS A LNU LV343a w 1 LSVHLNOD a NI 9 ama N 13 MYS IA sna JOULNOD vas MS olany Nar sn OH O oo 2 41 ODV
15. characteristics are often passed unnoticed by a visual inspection and the X RAY RADIATION protection afforded by them cannot necessar ly be obtained by using replacement components rated for higher wattage etc Replacement parts which have these special safety characteristics are identified in this manual and its supplement electrical components having such features are shaded on the schematic diagram and the parts list Before replacing any of these components read the parts list in this manual carefully The use of substitute replacement parts which do not have the same characteristics as specified in the parts list may create shock fire X RAY RADIATION or other hazards B CHECK 1 Prepare the test equipment 2 Use the DC voltameter at DC 370V position to test B test point 1 e 3 Connect the power plug to 220V 50Hz turn on the power switch wait for normal raster Check B 110V 0 2V pew m ae 20 INSTALLATION AND SERVICE ADJUSTMENTS GENERAL In the majority of cases a color television receiver will need only slight touch up adjustment upon installation Check the basic characteristics such as FS EHV and focus Observe the picture for good black and white details without objectionable color shading If color shading 15 evident demagnetize the receiver If color shading still persists perform purity and convergence adjustments This should be all that 15 necessary to achieve opti
16. WA 609 0079 0V462 682 TOVX 606 009 ae GV SOVXH 106X 109 en COAX AV x 924 NOLLNd 0062 9202 281 00S0 SSOZN Z82 0050 0616 1 682 7 7 71100 27 AHAVHdS 27 DNISSVIIA 0060 560GN 682 140 11 BLOCK DIAGRAM SWA gt IF AV INPUT 64 DECODE AV SWITCH TV AUDIO AND 1 4052 ARRAY w Y AV SWITCH TV VIDEO 58 AV S INPUT TC4052 H OUT H DRIVER UV INPUT 32 VERTICAL U DRIVER 1048172 R G Ys Rch Leh 12C BUS LINE POWER SUPPORT MICRO COMPUTER z 37150 9185653 AUDIO 12V POWER AMP 187589 STR G5653 a IC BLOCK DIAGRAM en 00070 I ce ALA CLL ce a P 675 5 CLL 171 MOT 117771552 TAL y 21 T yor 115710205 dd 09 VSG SGNUV s d Pee a vt N 6600 We dVICED 212945 enoedS 19q pred y M 5 1055 0 MS WF 1081 eeo a 17 7 777 777 UND 777 gt zz
17. 0 0601 Ah EE 470 5 OO Gy LAOS LA40 EK A601 5 1uH 1uH 77 HFR205 yagaynn s L OUT i 5 3 444 777 zj gt ngge A AIN RA39 3 1 100 ZZ gt le 75 L_IN 2SC2688M 20 R OUT 4 7 lO 00 v2 PPP 7 77 HEN 0402 4 1N4148 tn ANO R2 H i 8405 DVO TIVA H 300 x904 1N4148 e 1 0 470 H i AT 10K VOL 4 2 Tab R424 77 1 1000UR 1 H 15K 2 59 10K 3 XNO4 M R403 04 08 jo ANO3 406 100 5 1K 220n 9 3 667_ 2117 3100 10K SCL1 252588 20 402 3 evos y 1 a 0403 4 10n xeb2 2 3 4 XA01 10K SDA1 1N4148 PI BRZ 5 i R412 1000 330 16V 65 cvo5 R O i 2205 10n 10 300 AVO1 04 L 270840 i c403 777 5 100K Qu 7 2 2 i 2708 R425 8 au 10K 0405 RVOB AV10 3X m 8422 1N4148 aa 22K 220 MUTE 4 i V404 22K 25 1815 9 25 1815 7 AV OUT R423 1N4148 L401 JO A MUTE_1 3 100 8200 77 77 R215 N 777 V405 E 16V
18. 0K J 467 1C310 HO3 1 6W 10K J 467 1C310 H03 1 6W 10K J 467 1C310 H03 1 6W 10K J 467 1 315 1 6W 15K J 27 467 1 315 1 6W 15K J SYMBOL PART NO DESCRIPTION 256 467 1 322 1 6W 22K J 467 1 327 1 6W 27K J 467 1C410 HO3 1 6W 100K J 467 1C410 HO3 1 6W 100K J 467 1C410 HO3 1 6W 100K J 467 1C410 HO3 1 6W 100K J 467 1C412 H03 1 6W 120K J 467 1C510 HO3 1 6W 1M J RT14 1 4W 470 J 467 1D056 H03 RT14 1 4W 560 J INDUCTANCE WITH COLOUR CODES 471 2033K 00 SPTO305 330K 5 28 SYMBOL PART NO DESCRIPTION LAO1 471 1068H 00 ELO606SKI 680J 471 1068H 00 ELO606SKI 680J 352 06210 70 TLP621 GB UL POWER SWITCH 360 30028 00 KDC A04 S METAL RESISTOR 467 2G315 HO 2W 15k0 JL MELTABLE RESISTOR 29 528 467 4E001 HO 1 2W 10 JL R304 467 4 24 0 R303 467 4 010 0 R502 467 433 R512 467 8E582 HOA RP501 GVA061 1000 20 R50 1 R503 SWITCH TRANSFORMER 470 00272 00 472 10001 00 H LINEARITY COIL L301 1502 L302 FU501 364 775100 O XA04 CKX5 2K 2 05 AV SOCKET 30 XA DEGAUSSING COIL 47 7 12103 00 DGC 37 54 cm 996 20051 01 TL7 218 II 3Q IMPEDANCE TRANSFORMER 468 91301 00 ZKP 1 CRT BOARD SYMBOL PARTNO DESCRIPTION 782 J2130 020 _ DIODE VD401 1N4148 VD402 1N4148 VD403 1N4148 TRANSISTOR V404 2SC1815 Y V401 25 2688 V402 25 2688 V403 25 2688 6238 17 05
19. 7 0207 e a l 4 5 6K 4 55 POWER 10n MO O 0 0 9 0 0 0 0 0 60 gt 501 F520 10 50V 801 i F 1 777 i i L504 10K iu 1 231 M1962M 7202 i LeL 27 SRA w 0210 1 kozjt n 26232 E My Eo 270 1 2 RE 1001 50V me 86 MAE 2 z C804 16V 1204 rza 1 0 220 0 22u 3 8218522118224 10n C203 i i NM ee e 2 Hg 330n 4887 an H H u ELAS 4 v802 22K ms H 409 PH2369 Y O 6 8 VNFB i I 1 R202 FUSO 4 D502 1205 77 275 X503 2 5A 250V 1N4148 201 H 10n 5 H AT24C04 RO2 120K z a 802 a ie N i 461 ZN REN H 3 T _ H JOX 14FF 048 1HS 150 ea 1K 8506 1K 1K x201 i 150 75 0512 Eee XRAY 2341045 HZ1B 3 100 203 i 4 V302 25 1015 H t 7 2SC1B15 Y 4 6522 A514 v202 4 70 1K 10n cu 2SA1015Y BV 3 XM03 302 3 4705 3 uj 2 8303 m gt gt gt hr cu gt cu 0 la gt gt i co fon
20. A 82 8307 552956 220K 25618157 50 9339 6324 777 1404 LAOS B2 7 1407 LAOS H C306 S_IN tuH 1UH tuH i 10u 1301 u VNFB i i HL221 6329 A36 YES H H 77 10001 0330 0311 8329 R320 an T 400 iN4148 680 e 2209 n3319 4 RP30 1 _RP302 270 i TLN2110 6332 3 0334 20K t I 4 7 8334 1336 0335 50V 1 BK 240 100n 777 a H x302 O A326 W 4 5 8 3 he Ek xao5 AV901 5 H I 782 2117 0100 WARNING BEFORE SERVICING THIS CHASSIS READ THE PERCAUTION SAFETY PRECAUTION AND RPODUCT SAFETY NOTICE ON PAGE 1 amp 2 OF THIS MANUAL CAUTION 1 The shaded areas makes in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with type identical to those in the original circuit or specified in the parts list Before replacing any of these components read carefully the PRODUCT SAFETY NOTICE on page 2 2 Do not degrade the safety of the receiver through improper servicing ELECTRICAL PARTS LIST MAIN BOARD SYMBOL PART NO DESCRIPTION 2 1782 M2135 010 MAIN PCB CRYSTAL D503 340 00001 003 1N4148
21. OTICE ITEMS PLEASE READ THE SAFETY INSTRUCTION Before servicing and aligning this equipment please read the following X RAY RADIATION PRECAUTION SAFETY PRECAUTION and PRODUCT SAFETY NOTICE X RAY RADIATION PRECAUTION 1 Excessive high voltage can produce potentially hazardous X RAY RADIATION To avoid such hazards the high voltage must not be above the specified limit The normal value of the high voltage of this receiver 15 26 5kV 20 at zero beam current minimum brightness under 220V AC power source the high voltage must not under any circumstances exceed 26 5kV 2 Each time a receiver requires servicing the high voltage should be checked following the HIGH VOLTAGE CHECK procedure this manual It is recommended the reading of the high voltage be recorded as a part of service record It is important to use an accurate and reliable high voltage meter 3 This receiver is equipped with a Fail Safe FS circuit which prevents the receiver from producing an excessively high voltage even if the B voltage increases abnormally Each time the receiver 15 serviced the FS circuit must be checked to determine that the circuit is properly functioning following the FS CIRCUIT CHECK procedure in this manual 4 The primary source of X RAY RADIATION in this TV receiver is the picture tube For continuous X RAY RADIATION protection the replacement tube must be exactly the same type tube as specified in the parts list
22. RE 2 Volume preset 30 3 Set OSD language to English 4 mode channel position number CABLE 3 Factory menu 1 Enter into factory menu to operate 1 1 Press factory button enter into factory menu 1 2 Use CH CH button to select the menu use VOL VOL button to enter the function menu 1 3 In factory menu status press MENU button to exit 2 Factory menu contents 1 FACTORY MENU FACTORY MENU 1 VDJ ADJ 1 AUTO ADJ OFF 2 RF DELAY ADJ 3 S TRAP ADJ 2 RASTER ADJ V POSITION V SIZE H POSITION WHITE BACK VS CORRECTION V LINEARITY H POSITION N V SIZE V SHIFT 10 VS CORRECTION N 11 V LINEARITY N 3 CRT ADJ CUT OFF R CUT OFF G CUT OFF B DRIVER DRIVE B YUV CUT OFF R YUV CUT OFF G YUV CUT OFF B YUV DRIVE R 10 YUV DRIVE B 4 PICTURE ADJ 1 SUB BRIGHTNESS 2 SUB 6 SERVICE MENU H VCO ADJ TRAP FINE ADJ SUB TINT SUB TINT AV SUB TINT YUV SUB COLOR CANGLE95 TAKE OFF OSD LEVEL 10 Y DL 11 Y DL SECAM 12 SECAM KILLER VIF VCO auto adjustment TUNER adjustment S TRAP auto adjustment Vertical position adjustment PAL Vertical size adjustment Horizontal position adjustment Vertical S adjustment Vertical linear adjustment Horizontal position adjustment Vertical size adjustment Vertical position adjustment Vertical S adjustment Vertical linear adjustme
23. ak 580 H TEU2YX 3 3n 3300 cn ERDO7 15 2501555 8312 8313 1 8422 zn KV 1600 ER a SEK RO 5 2 32V EE 10 0325 ree 680 gt or E 4 2 8315 One m i L L Less 77 2 9 9 5 gt 4 70 390p T EY ii 160V 500V 500 8340 C326 in LA02 im 1 77 77 560 C321 322 2200 9323 53 5 i le E 220n 3509 35V 1K VDRV d 4 PAN 0305 303 A330 BAND2 Lo io wg FEN 0336 A341 LCA03 1 0 CA22 28 BAND1 i s tied H durang g 2323 834 220 220p 75 ak 16304 V306 10 8332 R338 50 330 33n 63V RA16 RA19 RA25 RA30 6303 lo 0308 amp gt 470p 25C1815 Y 160V 2 7 820 TW RA14 100K 1000 CA15 RA23 100K 100K 56f TP301 TP302 552956 R322 8324 82 1n 777 20 120 4 9 5 3 3K 2K E 63V Leas 0302 R305 4 Im 220007 in 155 6 BK 0 334 AP303 07 777 774704 T 63V H 77 gt 0308 0327 303 pak 3 RASA 123 10K 3u R325
24. ar signal generator 2 Adjust the BRIGHTNESS and CONTRAST controls for well defined pattern 3 Adjust two tabs of the 4 Pole Magnets to change the angle between them see figure 4 and superimpose red and blue vertical lines in the center area of the picture screen see figure 5 4 Turn the both tabs at the same time keeping the constant angle to superimpose red and blue horizontal lines at the center of the screen see figure 5 5 Adjust two tabs of 6 Pole to superimpose red blue line with green one Adjusting the angle affects the vertical lines and rotating both magnets affects the horizontal lines 6 Repeat adjustments 3 4 5 keeping n mind red green and blue movement because 4 Pole Magnets and 6 Pole Magnets interact and make dot movement complex CIRCUMFERENCE CONVERGENCE ADJUSTMENT l Loosen the clamping screw of deflection yoke to allow the yoke to tilt 2 Put a wedge as shown in figure temporarily Do not remove cover paper on adhesive part of the wedge 3 Tilt front of the deflection yoke up or down to obtain better convergence in circumference See figure 5 Push mounted wedge into the space between the picture tube and the yoke to hold the yoke temporarily 4 Put other wedge into bottom space and remove cover paper to stick 5 Tilt front of the yoke right or left to obta n better convergence in circumference see figure 5 9 6 Keep the yoke position and put another wedge either upper spa
25. ce Remove cover paper and stick the wedge on the picture tube to fix the yoke 7 Detach the temporarily mounted wedge and put it in another upper space Stick it on the picture tube to fix the yoke 8 After fixing three wedges recheck overall convergence Tighten the screw firmly to fix the yoke tightly place 9 Stick three adhesive tapes on wedges as shown in figure 3 4 POLE MAGNETS ADJUST THE ANGLE VERTICAL LINES FIXED PURITY MAGNETS Se 6 POLE N MAGNETS Two 5 AT THE SAME TIME HORIZONTAL LINES CONVERGENCE MAGNET ASSEMBLY Fig 2 ADJUSTMENT OF MAGNETS BLU RED RED BLU GRN BLU RED i ao a 4 Magnets Movement 6 Pole Magnets Movement tneline the Yoke up or down Incline the Yoke right or left Center Convergence by Convergence Magnets Circumference Convergence by DEF Yoke Fig 3 Dot Movement Pattern Fig5 Dot Movement Pattern 10 WIRING DIAGRAM NHHAJ S 190 ZOEX _ 904 LH NANYOASNVAL ARNE E TVINOIZNOH ZOPX 07 SONX TONX u dOTO LZ1ZWN Z8L R God NIVW ZONX SONX God
26. cking point 1 High voltage check 1 1 Connect high voltage meter to CRT s second anode and GND 1 2 Receive D 8 signal set user control to DYNAMIC state the high voltage should be 29 0 1 21 PF and 25 or 25 0kV 1 14 or 26 5 1kV 217 1 3 When brightness and contrast be set to minimum zero beam current the high voltage should not exceed 32 kV 2 CRTfilament voltage check Receive D 8 signal set picture control to DYNAMIC state use effective value voltmeter to test CRT filament voltage the reading should be 6 3 0 3 Vrms 3 X ray protection check 3 1 Receive D 8 signal set user control to DYNAMIC state 3 2 Short R305 TP301 TP302 X ray protection circuit should effect 4 Picture and sound check 4 1 Receive standard TV signal 42 Making use of picture control buttons to check color contrast brightness sharpness tint s control function 4 3 Making use of sound control buttons to check volume control function 5 Sub brightness check Receive D 8 signal set color contrast brightness all to 0 picture s left side first grid slightly lights 6 Color purity and convergence check Use common regulation 7 AV terminals AV IN OUT check 8 Other control buttons on the set and on the remote controller function check Preset the following in factory 1 Picture menu CONTRAST 60 BRIGHTNESS 30 COLOR 30 SHARPNESS 30 TINT 00 PICTURE PERSONAL MODE VMO
27. ino PFGVODAJIA AW130 NOW NI OIGNYLX4 1 ABDA ino 2 48 Specification M61251FP GNOK M61251FP 60
28. mum receiver perfomance FOCUS ADJUSTMENT Adjust the FOCUS control on T301 for well defined scanning lines on the picture screen HIGH VOLTAGE CHECK CAUTION These is no HIGH VOLTAGE ADJUSTMENT on this chassis Checking should be done following the steps below 1 Connect an accurate high voltage meter to the second anode of the picture tube 2 Turn on the receiver Set the BRIGHTNESS and CONTRAST controls to minimum zero beam current 3 High voltage will be measured below 26 5 20 KV 4 Vary the BRIGHINESS control to both extremes to be sure the high voltage does not exceed the limit under any conditions General instruction 1 This chassis EEPROM N801 M24C08 should copy standard data if necessary deal it with factory adjustment If directly use blank EEPROM should first preset data then go on other common alignment For factory adjustment method refer to The appendix factory menu 2 If without special indication the alignment is conducted on the below condition a AC power supply 220 V 50 Hz b The whole unit 15 preheated for more than 30 min 3 There is built in auto degaussing circuit it will degauss automatically within 1second after turning on 4 If CRT is with magnetism affects color purity and convergence the internal degaussing can not degauss completely can use degaussor to degauss externally If color purity and convergence 15 still poor then do color purity and convergence adjustment
29. nt TV white balance adjustment YUV white balance adjustment Sub brightness adjustment Sub contrast adjustment Horizontal VCO auto adjustment Color trap fine adjustment TV sub tint AV sub tint YUV sub tint Color adjustment Color BPF TAKE OFF on off OSD level on off Brightness delaying time VIDEO OUTGAIN OM DET S SLICE DOWN AUTO SLICE DN V SYNC DET WINDOW 1 GAIN UP 2 GAIN DOWNN ABCL GAIN GAMMA BLACK ST OFF BLACK ST ADJ BLACK ST GAIN FREQ VDL ADJ UDL ADJ SELECTION PAL M N OP AV SUSTEM AUDIO ATT MONITORING EEPROM OPTION POW ON SEARCH OSD H POSITION ADJ PIC DYNAMIC PIC STANDARD PIC SOFT Demodulation output range adjustment Over modified detecting on off Sync detecting slice stage Auto detecting on off Vertical sync detecting AFCigain 2 gain Brightness contrast auto control Brightness contrast auto control gain Black level delay on off VIF selecting AV mode Volume output control EEPROM selecting Power on search selecting OSD horizontal position adjustment EEPROM modifying Dynamic scalar selecting Standard scalar selecting Soft scalar selecting CONVERGENCE MAGNET ASSEMBLY POSITIONING Convergence magnet assembly and rubber wedges need mechanical positioning Refer to below figure 1 COLOR PURITY ADJUSTMENT NOTE
30. nue fine tune RF DELAY ADJ 3 Focus adjustment 3 1 Receive A 12 signal set user control to DYNAMIC state 3 2 Adjust FBT s focus potentiometer to make the screen s area 5 focus optimum 4 Acelerating electrode adjustment method use A 7 signal 4 1 Roughly adjust white balance fix GCUT value adjust RCUT BCUT RDRV BDRV s value to make 4 white balance basically normal 4 2 Set the color to 0 contrast to 10 use oscilloscope to adjust red gun s waveform see below figure adjust brightness to make the seventh step s the darkest DC level be 180V adjust accelerating electrode to make the seventh step slightly light up just can separate the seventh step and below dark field 180V e Fig 2 red gun waveform 4 3 Fine adjust white balance color temperature 12000 8MPCD X 0 270 0 008 0 283 0 008 4 4 Set contrast brightness color all to 0 adjust to make A 7 s upper left 2 lattice slightly light up 5 Horizontal vertical scan center adjustment NTSC 60Hz H center V center adjustment Receive G23 signal set user controlto DYNAMIC state adjust V center V position H PHASE to make picture s center be in accordance with screen 8 center 6 Vertical scan amplitude adjustment NTSC 60 Hz V amplitude adjustment Receive D35 signal set user control to DYNAMIC state adjust V amplitude V SIZE to make picture s upper and lower over scanning be screen size 5 8 Che
31. rature 7 Ifany fuse in this TV receiver is blown replace it with the FUSE specified in the chassis parts list 1 8 Before returning the set to your customer always perform leakage current check on the exposed metallic parts of the cabinet such as antennas terminals screwheads metal overlays control shafts etc to be sure the set 1s safe to operate without danger of electrical shock Plug the AC line cord directly into a 220V AC outlet do not use a line isolation transformer during this check Use an voltmeter having 5000 ohms per volt or more sensitivity in the following manner Connect a 1500 ohm 10 watt resistor paralleled by 0 15uF AC type capacitor between a known good earth ground water pipe conduit etc and the exposed metallic parts one at a time Measure the AC voltage across the combination of 1500 ohm resistor and 0 15uF capacitor Reverse the AC plug at the AC outlet and repeat AC voltage measurements for each exposed metallic part Voltage measured must not exceed 0 3 volts RMS This corresponds to 0 2 milliamp AC Any value exceeding this limit constitutes a potential shock hazard and must be corrected immediately AC VOLTMETER 0 15 u FD Place this probe on each exposed metallic part Good earth ground such as a water pipe conduit etc 15000hm 10watt PRODUCT SAFETY NOTICE Many electrical and mechanical parts in the chassis have special safety related characteristics These
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