Sharp 37GQ-20H Service Manual Download Page 19

20

37GQ-20H

REF NoPARTS

DESCRIPTION

* CODE

R  0310 VRS-TV1JD101J

2125 100 OHM 5% 1/10W SMD

S AA

R  0311 VRS-TV1JD104J

2125 100KOHM 5% 1/10W SMD

S AA

R  0312 VRS-TV1JD103J

2125  10KOHM 5% 1/10W SMD

S AA

R  0313 VRS-TV1JD561J

2125 560 OHM 5% 1/10W SMD

S AA

R  0314 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  0315 VRD-RA2BE103J

RES   10KOHM  5%  1/8W

S AA

R  0318 VRS-TV1JD153J

2125  15KOHM 5% 1/10W SMD

S AA

R  0321 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  0401 VRS-TQ2BD750J

OX RE  75 OHM 5% 1/8W SMD

S AA

R  0402 VRD-RA2HD680J

RES   68 OHM  5%  1/2W

S AA

R  0403 VRS-TV1JD221J

2125 220 OHM 5% 1/10W SMD

S AA

R  0404 VRS-TQ2BD750J

OX RE  75 OHM 5% 1/8W SMD

S AA

R  0405 VRD-RA2EE750J

RES   75 OHM  5%  1/4W

S AA

R  0406 VRD-RA2EE750J

RES   75 OHM  5%  1/4W

S AA

R  0407 VRS-TQ2BD750J

OX RE  75 OHM 5% 1/8W SMD

S AA

R  0408 VRS-TV1JD103J

2125  10KOHM 5% 1/10W SMD

S AA

R  0409 VRS-TV1JD223J

2125  22KOHM 5% 1/10W SMD

S AA

R  0410 VRS-TV1JD104J

2125 100KOHM 5% 1/10W SMD

S AA

R  0411 VRS-TV1JD682J

2125 6.8KOHM 5% 1/10W SMD

S AA

R  0412 VRS-TV1JD682J

2125 6.8KOHM 5% 1/10W SMD

S AA

R  0413 VRS-TQ2BD221J

OX RE 220 OHM 5% 1/8W SMD

S AA

R  0414 VRS-TQ2BD221J

OX RE 220 OHM 5% 1/8W SMD

S AA

R  0415 VRS-TV1JD104J

2125 100KOHM 5% 1/10W SMD

S AA

R  0416 VRS-TV1JD470J

2125  47 OHM 5% 1/10W SMD

S AA

R  0417 VP-NM2R2MR16N

COIL 2,2UH SMD

S AC

R  0418 VRS-TV1JD000J

2125   0 OHM 5% 1/10W SMD

S AA

R  0420 VRS-TV1JD000J

2125   0 OHM 5% 1/10W SMD

S AA

R  0502 VRD-RA2BE102J

RES    1KOHM  5%  1/8W

S AA

R  0509 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  0510 RR-XZ0200BMZZ

FUS RES  1R0 TAP 5% 1/2W

S AB

R  0511 VRD-RA2HD1R8J

RES  1,8 OHM  5%  1/2W

S AA

R  0512 VRS-TV1JD103J

2125  10KOHM 5% 1/10W SMD

S AA

R  0513 VRS-TV1JD683J

2125  68KOHM 5% 1/10W SMD

S AA

R  0515 VRS-TV1JD101J

2125 100 OHM 5% 1/10W SMD

S AA

R  0516 VRD-RA2BE102J

RES    1KOHM  5%  1/8W

S AA

R  0517 VRS-TV1JD184J

2125 180KOHM 5% 1/10W SMD

S AA

R  0519 VRS-TV1JD822J

2125 8,2KOHM 5% 1/10W SMD

S AA

R  0523 VRD-RA2BE561J

RES  560 OHM  5%  1/8W

S AA

R  0524 VRS-TV1JD392J

2125 3.9KOHM 5% 1/10W SMD

S AA

R  0525 VRS-TV1JD121J

2125 120 OHM 5% 1/10W SMD

S AA

R  0529 VRD-RA2HD151J

RES  150 OHM  5%  1/2W

S AA

R  0530 VRD-RA2BE184J

RES  180KOHM  5%  1/8W

S AA

R  0533 VRS-TV1JD124J

2125 120KOHM 5% 1/10W SMD

S AA

R  0534 VRS-TV1JD152J

2125 1.5KOHM 5% 1/10W SMD

S AA

R  0535 VRS-TV1JD824J

2125 820KOHM 5% 1/10W SMD

S AA

R  0536 VRD-RA2BE472J

RES  4,7KOHM  5%  1/8W

S AA

R  0537 VRD-RA2BE153J

RES   15KOHM  5%  1/8W

S AA

R  0538 VRS-TV1JD222J

2125 2,2KOHM 5% 1/10W SMD

S AA

R  0601 VRS-TV1JD222J

2125 2,2KOHM 5% 1/10W SMD

S AA

R  0602 VRS-TV1JD471J

2125 470 OHM 5% 1/10W SMD

S AA

R  0603 VRD-RA2HD331J

RES  330 OHM  5%  1/2W

S AA

R  0604 VRD-RA2HD471J

RES  470 OHM  5%  1/2W

S AA

R  0605 VRD-RA2HD6R8J

RES  6,8 OHM  5%  1/2W

S AA

R  0606 VRD-RA2HD6R8J

RES  6,8 OHM  5%  1/2W

S AA

R  0607 RR-XZ0200BMZZ

FUS RES  1R0 TAP 5% 1/2W

S AB

R  0608 VRD-RA2BE183J

RES   18KOHM  5%  1/8W

S AA

R  0609 VRD-RA2HD2R2J

RES  2.2 OHM  5%  1/2W

S AA

R  0610 VRD-RA2HD270J

RES   27 OHM  5%  1/2W

S AA

R  0611 VRD-RA2HD270J

RES   27 OHM  5%  1/2W

S AA

R  0612 VRN-VV3AB2R7J

MET FILM R 2.7 OHM  5% 1W

S AA

R  0613 VRD-RA2BE153J

RES   15KOHM  5%  1/8W

S AA

R  0614 VRS-TV1JD561J

2125 560 OHM 5% 1/10W SMD

S AA

R  0615 RR-XZ0212BMZZ

FUS RES  10R TAP 5% 1/2W

S AB

R  0616 RR-XZ0242BMZZ

FUS RES  3K3 TAP 5% 1/2W

S AB

R  0617 VRD-RA2BE102J

RES    1KOHM  5%  1/8W

S AA

R  0701 VRD-RA2HD474J

RES  470KOHM  5%  1/2W

S AA

R  0702 VRD-RA2HD474J

RES  470KOHM  5%  1/2W

S AA

R  0703 VRD-RA2BE220J

RES   22 OHM  5%  1/8W

S AA

R  0704 VRS-TV1JD101J

2125 100 OHM 5% 1/10W SMD

S AA

R  0705 VRS-TQ2BD331F

OX RE 330 OHM 1% 1/8W SMD

S AA

!

!

!
!

REF No PARTS

DESCRIPTION

* CODE

R  0706 VRS-TV1JD681J

2125 680 OHM 5% 1/10W SMD

S AA

R  0707 VRC-UA2HG825K

SOLID R 8,2MOHM 10%  1/2W

S AB

R  0708 VRC-UA2HG825K

SOLID R 8,2MOHM 10%  1/2W

S AB

R  0710 VRD-RA2HD221J

RES  220 OHM  5%  1/2W

S AA

R  0711 VRS-TV1JD220J

2125  22 OHM 5% 1/10W SMD

S AA

R  0714 VRD-RA2HD821J

RES  820 OHM  5%  1/2W

S AA

R  0715 VRS-TV1JD100J

2125  10 OHM 5% 1/10W SMD

S AA

R  0716 VRD-RA2HD473J

RES   47KOHM  5%  1/2W

S AA

R  0718 VRD-RA2BE472J

RES  4,7KOHM  5%  1/8W

S AA

R  0719 VRS-TV1JD272J

2125 2,7KOHM 5% 1/10W SMD

S AA

R  0720 VRD-RA2HD561J

RES  560 OHM  5%  1/2W

S AA

R  0721 VRS-TV1JD220J

2125  22 OHM 5% 1/10W SMD

S AA

R  0722 VRS-TV1JD121J

2125 120 OHM 5% 1/10W SMD

S AA

R  0723 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  0724 VRS-TV1JD151J

2125 150 OHM 5% 1/10W SMD

S AA

R  0725 VRS-TV1JD391J

2125 390 OHM 5% 1/10W SMD

S AA

R  0726 VRS-TQ2BD000J

3216    0 OHM 5% 1/8W SMD

S AA

R  0801 VRS-TV1JD221J

2125 220 OHM 5% 1/10W SMD

S AA

R  0802 VRS-TV1JD221J

2125 220 OHM 5% 1/10W SMD

S AA

R  0803 VRS-TV1JD221J

2125 220 OHM 5% 1/10W SMD

S AA

R  0804 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  0805 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  0806 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  0807 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  0808 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  0809 VRS-TV1JD473J

2125  47KOHM 5% 1/10W SMD

S AA

R  0810 VRS-TV1JD271J

2125 270 OHM 5% 1/10W SMD

S AA

R  0811 VRS-TV1JD271J

2125 270 OHM 5% 1/10W SMD

S AA

R  0812 VRS-TV1JD271J

2125 270 OHM 5% 1/10W SMD

S AA

R  0813 VRS-TV1JD273J

2125  27KOHM 5% 1/10W SMD

S AA

R  0814 VRS-TV1JD105J

2125   1MOHM 5% 1/10W SMD

S AA

R  0815 VRS-TV1JD223J

2125  22KOHM 5% 1/10W SMD

S AA

R  0816 VRD-RA2BE272J

RES  2,7KOHM  5%  1/8W

S AA

R  0817 VRS-TV1JD222J

2125 2,2KOHM 5% 1/10W SMD

S AA

R  0818 VRS-TV1JD153J

2125  15KOHM 5% 1/10W SMD

S AA

R  0819 VRD-RA2BE101J

RES  100 OHM  5%  1/8W

S AA

R  0820 VRD-RA2BE101J

RES  100 OHM  5%  1/8W

S AA

R  0821 VRS-TV1JD822J

2125 8,2KOHM 5% 1/10W SMD

S AA

R  0822 VRS-TV1JD334J

2125 330KOHM 5% 1/10W SMD

S AA

R  0823 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  0824 VRS-TV1JD750J

2125  75 OHM 5% 1/10W SMD

S AA

R  0825 VRS-TV1JD750J

2125  75 OHM 5% 1/10W SMD

S AA

R  0826 VRS-TV1JD750J

2125  75 OHM 5% 1/10W SMD

S AA

R  1001 VRS-TV1JD101J

2125 100 OHM 5% 1/10W SMD

S AA

R  1002 VRS-TV1JD101J

2125 100 OHM 5% 1/10W SMD

S AA

R  1003 VRS-TV1JD101J

2125 100 OHM 5% 1/10W SMD

S AA

R  1004 VRS-TV1JD101J

2125 100 OHM 5% 1/10W SMD

S AA

R  1005 VRS-TV1JD101J

2125 100 OHM 5% 1/10W SMD

S AA

R  1006 VRS-TV1JD101J

2125 100 OHM 5% 1/10W SMD

S AA

R  1007 VRS-TV1JD101J

2125 100 OHM 5% 1/10W SMD

S AA

R  1008 VRS-TV1JD332J

2125 3.3KOHM 5% 1/10W SMD

S AA

R  1009 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  1010 VRS-TV1JD273J

2125  27KOHM 5% 1/10W SMD

S AA

R  1011 VRD-RA2HD472J

RES  4.7KOHM  5%  1/2W

S AA

R  1012 VRD-RA2HD472J

RES  4.7KOHM  5%  1/2W

S AA

R  1013 VRD-RA2HD472J

RES  4.7KOHM  5%  1/2W

S AA

R  1014 VRS-TV1JD223J

2125  22KOHM 5% 1/10W SMD

S AA

R  1015 VRS-TV1JD223J

2125  22KOHM 5% 1/10W SMD

S AA

R  1016 VRS-TV1JD331J

2125 330 OHM 5% 1/10W SMD

S AA

R  1017 VRS-TV1JD271J

2125 270 OHM 5% 1/10W SMD

S AA

R  1018 VRS-TV1JD103J

2125  10KOHM 5% 1/10W SMD

S AA

R  1019 VRS-TV1JD102J

2125   1KOHM 5% 1/10W SMD

S AA

R  1020 VRS-TV1JD562J

2125 5,6KOHM 5% 1/10W SMD

S AA

R  1021 VRS-TV1JD472J

2125 4.7KOHM 5% 1/10W SMD

S AA

R  1022 VRS-TV1JD472J

2125 4.7KOHM 5% 1/10W SMD

S AA

R  1023 VRS-TV1JD472J

2125 4.7KOHM 5% 1/10W SMD

S AA

R  1024 VRS-TV1JD472J

2125 4.7KOHM 5% 1/10W SMD

S AA

R  1025 VRS-TV1JD472J

2125 4.7KOHM 5% 1/10W SMD

S AA

R  1026 VRS-TV1JD000J

2125   0 OHM 5% 1/10W SMD

S AA

R  1027 VRD-RA2BE101J

RES  100 OHM  5%  1/8W

S AA

!
!

Summary of Contents for 37GQ-20H

Page 1: ...es the set should restored to its original condition and only parts identical to those specified should be used MODEL 37GQ 20H Issued 9th June 00 This document has been published to be used for after sales service only ELECTRICAL SPECIFICATION 2 IMPORTANT SERVICE NOTES 3 SERVICE ADJUSTEMENTS 4 PRINTED WIRING BOARDS 11 SCHEMATIC DIAGRAM WAVE FORMS 13 PART LIST 18 TROUBLESHOOTING TABLES 22 ...

Page 2: ...exposure at close range the following precautions should be observed 1 When repairing the circuit be sure not to increase the high voltage to more than 25 5 KV at beam 1000µΑ for the set 2 To keep the set in a normal operation be sure to make it function on 22 4KV 1 5KV at beam 800µΑ in the case of the set The set has been factory adjusted to the above mentioned high voltage Always check the high ...

Page 3: ...ERT POS VERT AM Displayed on screen Hexadecimal Decim Range Function 00 03H 00 63H S L VL N 4 43 3 58 SECAM NTSC 4 43 NTSC 3 58 AUTO PNS AUTO PN AUTO 50HZ 60HZ 0 63d 0 63d 0 63d 0 63d 0 63d 0 63d 0 63d 0 15d Indicates operative Service Mode Access to NVM memory Auto Gain Control Auto Gain Starting Point Line PLL time constant Colour system Field Frequency Blue Gain Green Gain Green Cut Red Gain Re...

Page 4: ...on can be made by pressing button NVM LIST DESCRIPTION BANK ADDRESS DESCRIPTION VALUE 00H 00H ZONE FOR TUNNING INFORMATION BEGIN CAH 3BH ZONE FOR TUNNING INFORMATION END 10H 3CH STAND BY 44H ON 40H OFF 44H 3DH OPTION BYTE 10XXXXXX HOTEL MODE 1 START IN PRG1 NO TUNNING OPTION VOLUME LIMITATION 11XXXXXX HOTEL MODE 2 START IN PRG 1 NO TUNING OPTION VOLUME LIMITATION START IN SCART MODE OUT FROM STDBY...

Page 5: ...NE CHIP REGISTER 1E 00H 1FH ONE CHIP REGISTER 1F 00H 20H VPOS_50 VERTICAL POSITION 4 3 50 Hz 12H 21H VAMP_50 VERTICAL AMPLITUDE 4 3 50 Hz 0FH 22H VPOS_60 VERTICAL POSITION 4 3 60 Hz 0FH 23H VAMP_60 VERTICAL AMPLITUDE 4 3 60 Hz 0FH 24H HSHIFT_60 HORIZONTAL SHIFT 60Hz 1DH 25H HSHIFT_50 HORIZONTAL SHIFT 50Hz 22H 26H FINVFH STEP FOR FINE TUNING IN VHF BAND 00H 27H VHF1_STEP THICK TUNING STEP FOR VHF1 ...

Page 6: ...STER 12 00H 13H ONE CHIP REGISTER 13 20H 14H ONE CHIP REGISTER 14 20H 15H ONE CHIP REGISTER 15 00H 16H ONE CHIP REGISTER 16 1FH 17H ONE CHIP REGISTER 17 20H 18H ONE CHIP REGISTER 18 2BH 19H ONE CHIP REGISTER 19 00H 1AH ONE CHIP REGISTER 1A 90H 1BH ONE CHIP REGISTER 1B 90H 1CH ONE CHIP REGISTER 1C 90H 1DH ONE CHIP REGISTER 1D 00H 1EH ONE CHIP REGISTER 1E 00H 1FH ONE CHIP REGISTER 1F 00H 20H VPOS_50...

Page 7: ...HIP REGISTER 09 99H 0AH ONE CHIP REGISTER 0A 32H 0BH ONE CHIP REGISTER 0B B2H 0CH ONE CHIP REGISTER 0C 32H 0DH ONE CHIP REGISTER 0D 20H 0EH ONE CHIP REGISTER 0E 20H 0FH ONE CHIP REGISTER 0F 18H 10H ONE CHIP REGISTER 10 1FH 11H ONE CHIP REGISTER 11 00H 12H ONE CHIP REGISTER 12 00H 13H ONE CHIP REGISTER 13 20H 14H ONE CHIP REGISTER 14 20H 15H ONE CHIP REGISTER 15 00H 16H ONE CHIP REGISTER 16 1FH 17H...

Page 8: ...level between 60 and 80 dBµV 2 Apply High Voltage Probe to Pin 8 of CRT socket 3 4 Adjust G2 potentiometer until obtaining 525V 10 5 Check BKGD If it is necessary adjust BKGD according to instructions detailed in the next page 2BH BG_COARSE THICK TUNING ADJUSTMENT FOR L AND BG 0AH 2CH BG_FINE FINE TUNING ADJUSTMENT FOR L AND BG 00H 2DH LP_FINE FINE TUNING ADJUSTMENT FOR L 00H 2EH DELAY SEARCH XXXX...

Page 9: ...lourmeter in the the left point of Fig 4 f Using brightness and contrast buttons select a luminance of 120 nits g Operate again in Service Mode and select location B GAIN and G GAIN to obtain colour coordinates X 0 290 0 015 Y 0 284 0 015 h Exit Service Mode and check colour coordinates X and Y at 20 and 120 nits It may be necessary to repeat the same procedure or re adjust the cuts as show the be...

Page 10: ...11 37GQ 20H ...

Page 11: ...12 37GQ 20H ...

Page 12: ...µs 200V VERT CH1 FREQ 100KHz CH1 P P 504 V CH1 100V A 2µs 100V VERT CH1 FREQ 100KHz CH1 P P 472 V CH1 2V A 10µs 1 00V VERT CH1 FREQ 15 6KHz CH1 P P 8 56 V CH1 200V A 10µs 200V VERT CH1 FREQ 15 6KHz CH1 P P 1 00 kV CH1 1V A 10µs 1 00V VERT CH1 FREQ 15 6KHz CH1 P P 5 40 V CH1 1V A 5ms 2 50 V VERT THE AREA ENCLOSED BY THIS LINE IS DIRECTLY CONNECTED WITH AC MAINS VOLTAGE WHEN SERVICING THE AREA CONNE...

Page 13: ...2W R862 15K 2W 7 R899 0 8 R887 2K7 1 2W Q885 TX0180BM C701 470nF 275V FZ0160BM C871 470pF 6 R892 1K C876 4 7nF 2KV R864 15K 2W D811 DX0551 D862 DX0551 A N0304CE R893 1K R881 470 C861 470pF D861 DX0551 4 Q883 TX0180BM C872 470pF L3 QTIPM0017CEFM R898 0 S701 P0588 C873 470pF Q871 TX0181 BF422 3 D860 DX0551 Q887 TX0180BM K QCNW 2835BMZZ D812 DX0551 C878 10uF 200V C715 100nF Q702 TX0218 BC337 40 R710 ...

Page 14: ...7 180K C503 330nF Q505 2SA1037 VS VS _ IC501 UA741 8 7 6 5 4 3 2 1 220nF R519 8K2 R617 1K Q502 BC635 D503 1N4933 C717 10uF 16V R603 330 1 2W R609 2 2 1 2W Q603 TX0112 BC636 R605 6 8 1 2W Q602 BC635 TX0108BM R523 560 R536 4K7 R516 1K D605 DX0504 1N4934 R613 15K C606 22nF R706 680 R710 220 1 2W C607 100uF 35V C722 10uF 16V R722 120 C610 22nF D607 EX0549BM 7V5 R510 1 1 2W R533 120K Q509 2SA1037 R535 ...

Page 15: ...6 CVBSIN2 28 BS 29 BEXT 30 GEXT 31 REXT 32 XTAL 53 BTUN 52 HALFCTR 51 FBOSD 50 ROSD 49 FB 33 Y C 34 CHR 35 APR 36 UIN 37 VIN 38 YIN 39 YOUT 40 VOUT 41 UOUT 42 BOUT 43 GOUT 44 ROUT 45 ISENS 46 BOSD 47 GOSD 48 R321 1K R318 15K D301 DX0045BM R312 10K C303 1uF 160V C312 220uF 10V C315 100pF Q503 TX0108BM BC635 R824 75 R825 75 R826 75 Q1003 2SA1037KQ C1015 330nF R1034 150K R1033 4K7 C1014 10uF 16V C101...

Page 16: ...2uF C408 47uF 16V D401 7 5V D402 7 5V Q401 2SC2412 SC401 CZ2107BM 21 F N0505CE C201 33pF L201 390mH R529 150 1 2W D404 7 5V D405 7 5V D406 7 5V D407 7 5V C205 1uF C815 2 2uF C508 330nF C208 1uF C207 10uF 16V R416 47 R407 75 TQ R401 75 TQ R219 2K2 R220 100 L202 12uH DF R221 0 R202 1K C221 100pF Q204 2SC2412 R814 1M IC801 S T V 2 2 3 6 IFPLL 17 GND IF 18 AM FMOUT 19 VCC 20 CVBS 21 AUDIN 22 IF1 23 IF...

Page 17: ...DIODE TZMC7V5 TFK SMD S AA D 0402 RH EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA D 0403 RH EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA D 0404 RH EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA D 0405 RH EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA D 0406 RH EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA D 0407 RH EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA D 0409 RH EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD ...

Page 18: ...125SMD S AA REF No PARTS DESCRIPTION CODE C 0709 RC KZ0160BMZZ CERAM C 2 2NF 4KV X1Y1 S AC C 0710 VCEAGA1EW227M ELEC C 220UF 20 25V S AA C 0711 VCEAGH2CW107M ELEC C 100MF 20 160V S AE C 0712 VCEAGA1CW227M ELEC C 220UF 20 16V S AA C 0713 VCEAGA1CW227M ELEC C 220UF 20 16V S AA C 0714 VCEAGA1AW477M ELEC C 470UF 20 10V S AA C 0715 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA C 0717 VCEAGA1CW106M ELEC ...

Page 19: ... SMD S AA R 0705 VRS TQ2BD331F OX RE 330 OHM 1 1 8W SMD S AA REF No PARTS DESCRIPTION CODE R 0706 VRS TV1JD681J 2125 680 OHM 5 1 10W SMD S AA R 0707 VRC UA2HG825K SOLID R 8 2MOHM 10 1 2W S AB R 0708 VRC UA2HG825K SOLID R 8 2MOHM 10 1 2W S AB R 0710 VRD RA2HD221J RES 220 OHM 5 1 2W S AA R 0711 VRS TV1JD220J 2125 22 OHM 5 1 10W SMD S AA R 0714 VRD RA2HD821J RES 820 OHM 5 1 2W S AA R 0715 VRS TV1JD10...

Page 20: ... S AB DIODES D 0811 RH DX0551BMZZ DIODE LL4148 TFK SMD S AA D 0812 RH DX0551BMZZ DIODE LL4148 TFK SMD S AA D 0860 RH DX0551BMZZ DIODE LL4148 TFK SMD S AA D 0861 RH DX0551BMZZ DIODE LL4148 TFK SMD S AA D 0862 RH DX0551BMZZ DIODE LL4148 TFK SMD S AA COILS L 0861 VP CF120K0000 PEAK COIL 12UH 10 S AC CAPACITORS C 0860 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA C 0861 VCCCTV1HH471J CERAM C 470PF 50V ...

Page 21: ...Q1001 IC1001 IC1003 Check the tuner supply and band biases Both must be approx 5V DC Normal YES Is tuning voltage normal at Pin 2 of Tuner Check Picture setting by R C Signal should be received Check the AGC Voltage Pin 1 of Tuner Check the SAW Filter SF201 ...

Page 22: ...setting by R C Signal should be received NO YES Check D707 C710 NO Is Audio Amplifier muted Check R304 Q301 Q302 NO Check IC801 C301 YES YES Check IC1001 Q305 Does Sound Signal appear at Pin 6 of IC801 Does approx 20V DC appear on C710 ...

Page 23: ... IC701 Normal Abnormal Check Q601 C711 Check D708 D717 Normal Check R705 R706 R715 D706 Normal Check CRT connector K1 K5 bias Normal Abnormal Check C878 Check IC801 Check Q601 C711 Check Voltage on C705 Approx 325V DC Check D701 D702 D703 D704 C705 Check Voltage on C711 Approx 105V DC Approx 0V ...

Page 24: ...RTICAL AMP AND VERTICAL LINEARITY Readjust Vertical Size Check D505 D506 Check Q505 Q507 Q509 NEITHER VERTICAL NOR HORIZONTAL SYNCHRONIZATION Check IC801 C815 C816 R818 Vertical size is abnormal Vertical linearity is abnormal Is IC501 bias normal Check R510 Q501 Q502 Q503 ...

Page 25: ...ite Balance The Picture Colour is Blue or Yellow The Picture Colour is green or magenta The Picture Colour is Red or cyan Check Q871 Q883 and their adjacent circuits Check Q870 Q885 and their adjacent circuits Check Q872 Q887 and their adjacent circuits UNLOCKED COLOUR NO COLOUR SYNCHRONIZATION Check setting of Colour Standard in Service Mode Normal Check IC801 C812 C813 R813 X801 ...

Page 26: ...27 37GQ 20H NOTES ...

Page 27: ...22 37GQ 20FP RECICLED PAPER PRINTED BY ON ...

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