Sharp 51GT-25S Service Manual Download Page 29 | Manualshive

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29

51GT-25S

TROUBLESHOOTING TABLES.

NO VERTICAL SCAN

Broken

Normal

Check Q507 and

R504

Normal

Broken

Check Q5091

Normal

±10 V

abnormal

Check Q500,
D709, C712,
D710 and
C713

Check power
supply voltage

Check Q503,
Q505, Q506,
Q510 and IC501

Is R512
Broken?

Are R504 or
R608
Broken?

NO PICTURE

Normal

Open

Change

R609

0V

Check C876, T601
and connection G2

Normal

Check CRT

Check
R609

Check
C867
voltage

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Summary of Contents for 51GT-25S

Page 1: ...red to its original condition and only parts identical to those specified should be used This document has been published to be used for after sales service only ELECTRICAL SPECIFICATION 3 IMPORTANT SERVICING NOTES 4 SERVICE ADJUSTMENTS 5 PRINTED WIRING BOARDS 12 SOLID STATE DEVICE BASE DIAGRAM 20 SCHEMATIC DIAGRAM WAVE FORMS 21 TROUBLESHOOTING TABLES 28 PARTS ALLOCATION TABLES 16 PART LIST 30 BLO...

Page 2: ...al Information etc If only part number changes are required just change part number directly on Part List Section If you need more information please refer to the Technical Report Bulletin SERVICE MANUAL UPDATE LOG SHEET Part Technical Report Technical Bulletin Cause Solution Page Application Data Serial ...

Page 3: ...Y 0 300 WARNING The chassis in this receiver is partially live always use an isolation transformer when servicing this chassis To prevent electric shock do not remove cover No user serviceable parts inside Refer servicing to qualified service personnel Convergence Self Converging System Focus Bi Potencial Electrostatic Sweep Deflection Magnetic Specifications are subject to change without prior no...

Page 4: ...s x ray radiation levels This is a problem when in close proximity to the receiver for long periods of time To reduce any risks associated with this please observe the following precautions 1 When undertaking any servicing on this chassis DO NOT increase the EHT to more than 29 KV at a instantaneous beam current of 1100µΑ 2 Ensure that during normal operation the EHT does not exceed 26KV 1 5KV at ...

Page 5: ... data The data is stored automatically when the service mode is exited or at switch off To exit the service mode press the standby or menu button on the remote control To ensure correct operation of the AFT this must be adjusted to 40 SERV AGC AFT H SHIFT V SHIFT V AMPL V SLOP S CORR Y DLY GAIN R GAIN G GAIN B NVM 00 3F 00 7F 00 3F 00 3F 00 3F 00 3F 00 3F 00 3F 00 3F 00 3F 00 3F 00 FF Indicates op...

Page 6: ...D 15 01 GTEMP TEMPERATURE GREEN 18 02 BTEMP TEMPERATURE BLUE 0E 03 VSHIFT VERTICAL SHIFT 22 04 HSHIFT HORIZONTAL SHIFT 22 05 VTAMP VERTICAL AMPLITUDE 0A 06 VSLOPE VERTICAL SLOPE 12 07 Y_DELAY LUMA DELAY 08 08 Y_DELAY_S LUMA DELAY SECAM 08 09 S_CORR S CORRECTION 00 0A E_CAG CAG ADJUSTEMENT VALUE 0A 0B EA_OPT TV OPTIONS 0 FP SYSTEM B G 0 B G L MESSAGE RECHERCHE 1 AV FRONTAL NOT INCLUDED 0 INCLUDED 1...

Page 7: ...3 VERTICAL SLOPE 12 27 Y_DELAY3 LUMA DELAY PAL 08 28 Y_DELAY_S3 LUMA DELAY SECAM 08 29 S_CORR3 S CORRECTION 00 2A E_CAG3 CAG ADJUSTEMENT VALUE 0A 2B EA_OPT3 TV OPTIONS 0 FP SYSTEM B G 0 B G L MESSAGE RECHERCHE 1 AV FRONTAL NOT INCLUDED 0 INCLUDED 1 2 TUNING LOCK HOTEL LOCKED SWITCH ON PR1 1 NO LOCKED 0 3 UHF ONLY BAND UHF 1 ALL BANDS 0 4 PAL ONLY 1 PAL SECAM 0 5 CHILD LOCK CHILD LOCK ACTIVE 1 CHIL...

Page 8: ...SWORD ACTIV 00 4E EPSW1 PASSWORD 1R DIGIT 00 4F EPSW2 PASSWORD 2 DIGIT 00 50 EPSW3 PASSWORD 3R DIGIT 00 51 EPSW4 PASSWORD 4 DIGIT 00 52 LANGUAGE CHARACTER SET FOR TXT 01 53 OSD_WORD1 bit 0 SIZE OSD PROG 0 14 1 21 bit 1 TIMING FOR OSD ON SCREEN bit 2 CHARACTER SET FOR TXT ENABLED MENU 01 54 HOTEL FOR HOTEL MODE 2 FRONTAL BUTTONS DISABLED SWITCH ON WITH SSW PULSE 00 55 IFS_SCRT CONTROL FOR IFS IN SC...

Page 9: ... 10 BF 02 C0 00 C1 30 C2 04 C3 PAGE MEMORY FOR LIST MODE PROGRAM 5 00 C4 10 C5 02 C6 00 C7 30 C8 04 C9 PAGE MEMORY FOR LIST MODE PROGRAM 6 00 CA 10 CB 02 CC 00 CD 30 CE 04 CF PAGE MEMORY FOR LIST MODE PROGRAM 7 00 1 D0 FF RESERVED FF Page 100 Page 200 Page 300 Page 400 DEFAULT LIST MODE PAGES MEMORIZATION NOTE In page memory for LIST MODE every digit is written in one nibble 4 bits The default val...

Page 10: ...ning decreases and lower picture scanning increases PIF AGC Adjustment Screen Adjustment 3 Focus Adjustment Set contrast to 10 10 brightness to 5 10 and colour 0 10 Apply mains voltage of 220V AC 50HZ to TV 1 Receive Philips pattern signal to a level between 60 and 80 dBµV 2 3 Adjust focus potentiometer to obtain maximum definition 4 1 AFT Adjustment AFT must be adjusted to a fixed value of 40 Rec...

Page 11: ... colourmeter in the center of screen e Using brightness and contrast buttons select a luminance of 120 nits f Operate again in Service Mode and select location R GAIN and B GAIN to obtain colour coordinates X 0 290 0 015 Y 0 300 0 015 g 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 bel...

Page 12: ...E E Q603 C C C1004 D609 D716 C236 C625 C620 D211 D620 F701 J429 R722 J334 C725 E Q602 B E Q705 C E Q703 C E Q702 C J338 J800 J812 R632 R620 J210 D605 C602 C723 D717 D707 D706 D619 R720 J405 J425 C714 R705 R602 R708 R702 R706 C755 L201 D751 D710 C726 D705 C705 D712 D718 D704 D703 D702 D701 L701 C702 R604 R605 C707 R719 R710 R709 R753 R752 C605 C709 C704 C703 C728 S701 S1001 S1002 S1003 S1004 8 9 16...

Page 13: ...J300 J317 J324 C403 C302 C301 C306 C304 J301 J401 C711 C806 C213 C422 C241 C206 E Q5091 B C225 C420 C421 C410 C401 C351 C208 C239 C224 C222 C205 C249 C234 C815 C235 C612 C826 C876 C878 J323 R887 D881 D882 C874 P882 1 5 C Q301 E B Q3011 E Q209 C E Q401 C B B Q504 E Q505 C E 510 E Q708 C B Q887 E B Q872 E B Q871 E B Q883 E B Q870 E B Q885 E J419 J418 J326 R1083 C1004 D1006 D1007 D1008 D1009 J136 J11...

Page 14: ... P851 D510 D511 D207 D1001 D202 L205 J316 J319 IC202 1 R252 J108 J806 L207 C508 J141 D201 D203 D210 D351 D212 L301 L206 FB304 R429 R365 R236 J433 J123 D213 D411 L202 J329 J908 P402 5 1 D602 D1012 D603 R250 J339 J137 R512 R514 D509 D502 R240 J318 D504 J216 J113 D512 Q212 D214 D208 Q204 Q203 D412 9 8 7 6 5 10 9 8 7 6 5 G2 Q506 Q202 C875 L881 4 5 6 P883 H P881 L2 L3 K 1 IC1001 C309 Q1001 J411 Q1005 X...

Page 15: ... D705 C705 D712 D718 D704 D703 D702 D701 L701 C702 R604 R605 C707 R719 R710 R709 R753 R752 C605 C709 C704 C703 C728 S701 S1001 S1002 S1003 S1004 T700 8 9 16 5 4 P601 1 2 3 C601 VA701 T751 D1011 K L602 J330 J328 J341 C606 L710 L601 J144 J137 R518 R610 C615 C617 R504 R506 D513 D514 D505 D506 R514 R606 J142 R507 D507 16 IC751 1 Q751 G S D D752 K Q752 D1020 Q731 T601 1 2 3 4 5 6 7 8 9 10 11 11 SC881 9...

Page 16: ...749 172212 D880 152781 176276 D881 155067 187960 D882 154305 212471 E1 211328 54864 E1 182880 63246 F1 98552 124968 F2 181991 234823 Ref No Xmm Ymm F701 19304 177927 FB1001 202565 203327 FB1002 240538 134239 FB1003 164846 164973 FB201 228854 69723 FB301 232537 232537 FB304 196596 10541 FB351 182372 14605 FB352 180213 43307 FB601 65913 82296 FB801 205232 137287 FH1001 8636 181102 FH1002 23749 18097...

Page 17: ...66 227457 Q3011 208026 227457 Q302 205740 220980 Q3021 203200 220980 Q401 140970 30480 Q500 138811 129032 Q502 104013 80010 Q5031 111506 76962 Q504 120523 57277 Q505 124460 65531 Q5061 117983 51054 Q509 125984 88519 Q5091 123444 88519 Q510 118745 76581 Q511 151003 140081 Q601 73533 76073 Q602 52197 83312 Q603 101981 104521 Q604 100457 91948 Q701 40513 144526 Q702 29591 130048 Q703 24003 130048 Q70...

Page 18: ...1008 226568 135255 Q1009 231267 136525 Q1010 98425 111252 Q1011 229362 198755 Q1012 196723 192913 Q1013 229362 205740 Ref No Xmm Ymm Q201 165481 66929 Q202 237998 36957 Q203 205994 66040 Q204 200914 66040 Q206 232283 121793 Q212 230632 99568 Q303 219710 221361 Q304 213614 214630 Q305 235077 220218 Q351 206502 20447 Q352 200533 29718 Q353 206502 25527 Q354 196596 37465 Q355 197104 42545 Q501 146177...

Page 19: ...9009 125222 R839 156591 96520 R878 162941 193929 Ref No Xmm Ymm R879 162814 187325 R880 157099 200787 R881 159004 180213 R888 162941 195961 R892 149479 191770 R893 150495 203835 R894 146939 179578 R896 161671 202946 R898 161671 198882 R899 162687 182753 R901 192024 127254 R902 170561 112268 R904 167386 116332 RJ1 154813 52578 RJ10 218694 142748 RJ1031 137287 12319 RJ11 191770 160528 RJ112 229235 2...

Page 20: ...E E C B K A C B E B E C 52 51 33 32 20 19 64 1 A K C E S D G 6 4 1 3 B C E E C B K A C B E B E C 64 1 A K C E 1 4 5 8 1 26 27 52 S D G 6 4 1 3 B C E E C B K A C B E B E C 52 51 33 32 20 19 64 1 A K C E 1 4 5 8 1 26 27 52 S D G 6 4 1 3 B C E E C B K A C B E B E C 52 51 33 32 20 19 64 1 A K C E 1 4 5 8 1 26 27 52 S D G 6 4 1 3 B C E E C B K A C B E B C 52 51 1 4 5 8 26 27 S D G 6 4 1 3 B C E C K A C...

Page 21: ...re may be slight difference from yours IMPOTANT SAFETY NOTE PARTS MARKED WITH ARE IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET BE SURE TO REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMAN CE OF THE SET SAFETY NOTE 1 DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE REPLACING PARTS 2 SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS POTENTIAL SHOCK HAZARDS WHEN THE CHA...

Page 22: ...2 470 R415 470 R419 470 R1004 6K8 R1003 6K8 D1002 DX0045BM R1001 4K7 D1006 DX0045 D1007 DX0045 D1008 DX0045 D1009 DX0045 Q1004 TX0235BM R1026 10K R1028 3K3 D602 DX0045B R512 5 6 1 3W R XZ0109BM L701 F0111BM C728 01 250V KZ0029CE PR701 P0001BM R720 47K D706 DX0045BM R708 560 1 2W C723 22 50V FZ4224BMNJ R1027 3K3 C705 100 400V EZ0100BM C719 470uF 35V C502 100 35V C501 220 25V C514 220 25V C521 10 16...

Page 23: ...V EX0412BM R1038 220 R1039 220 R1041 220 L201 47uH DF D211 DX0505BM Q506 TX0235BM Q505 BC546 H TX0154BM C503 68P Q504 BC830 H TX0204BM D505 DX0501BM R508 33 C504 68P R503 4K7 Q503 BC856 TX0152BM R506 1 1 3W R XZ0100BM R504 2 2 1 3W R XZ0104BM R407 47 1 2W R507 560 1 2W R510 15K Q510 BC337 H TX0217BM R515 820 EX0409BM C602 330P 2KV KZ0036CE D602 DX0045B C603 15 50V FZ4423BMNJ C609 01 Q603 BC547 H T...

Page 24: ...BM R308 100 R304 10K R1077 4K7 R1035 22K R1034 15K D1013 DX0045BM R1048 4K7 1 2W R1049 4K7 1 2W R1059 4K7 1 2W R903 47 Q901 TX0235BM R1090 10K R1015 22K L304 3 3uH DF C304 470uF 25V C301 1 50V R1037 10K C806 100 16V C1008 22pF C1009 22pF C1033 1nF C1005 100nF C1028 1nF C1011 5 6nF C1023 220nF C1024 150pF C1026 100pF C1003 100nF C1027 100nF C801 1 C803 1 C901 22 C201 047 C805 1 Z C607 39P C307 015 ...

Page 25: ... 0 Q201 TX0235BM R211 100 R210 100 R202 150 R253 47 R608 2K2 R612 15K R615 15K D603 DX0045BM D602 DX0045BM R805 3M9 Q401 BC337 H TX0217BM R427 6K8 R426 6K8 C420 47 16V C421 47 16V C410 47 16V C213 22 16V C422 47 16V C210 22 25V C218 100P C202 022 C217 047 C818 330pF C203 3300P C204 68P C250 22 25V R422 100K C508 1 ML C610 01 P201A L2 1 IC201 TDA8842 R H I X 1 8 1 2 B M Z Z IF IN 1 IF IN 2 EHT 3 VE...

Page 26: ...V T601 Q701 10V 110V 20V 10V 7V Q705 3 3V Q711 2 5V Q709 10V 10V Vertical Driver Q505 Q506 O U TPUT AMP Q502 Q504 Feed back 150V 6 3V 12V Q601 Q602 Q604 Q603 110V Q883 Q885 Q887 Q870 Q871 Q872 2 5V Q503 Q504 Q505 Fly Back Pulse V Pulse 4 5V Q708 G2 Focus G ADG COIL S1001 S1002 S1003 S1004 L701 PR701 S701 F701 T3 15A A P701 N0304CE IC1002 1 2 3 4 5 6 7 8 SC881 VD842CE 7 9 3 5 4 6 8 P881A L2 1 K 5 4...

Page 27: ... 43MHZ J301 1 5 4 3 2 6 7 P301 1 2 SP301 1 2 V OUT FB R G SLOW B L IN L OUT R IN R OUT SC401 Z2107BM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 K 5 4 3 2 1 IC201 IF IN 1 IF IN 2 EHT 3 VERT SAW 4 VERT REF 5 AGC 6 AGC OUT 7 AUDIO OUT 8 S IF IN 9 IF IN 10 EXT IN 11 NC 12 FI LC 13 FI LC 14 PLL FIL 15 CVBS OUT 16 SCL 17 SDA 18 B GAP 19 IN 20 AV 21 VCC 22 VCC 23 VIDEO IN 24 GND 25 NC 26 AUDIO OUT 2...

Page 28: ...R737 D755 Q709 and IC1001 Check IC201 IC1001 IC1002 Normal Broken Check Q701 D718 C718 and Q601 Normal Broken Check D708 C711 and IC701 Check Q601 D708 and C711 Check F701 R703 and Q701 Is D1011 LED on a light Check D724 Check Q711 emitter voltage Check C206 Voltage Check Q709 emitter Voltage Check R737 D713 Q704 IC1001 and IC1003 TROUBLESHOOTING TABLES ...

Page 29: ...Broken Check Q5091 Normal 10 V abnormal Check Q500 D709 C712 D710 and C713 Check power supply voltage Check Q503 Q505 Q506 Q510 and IC501 Is R512 Broken Are R504 or R608 Broken NO PICTURE Normal Open Change R609 0V Check C876 T601 and connection G2 Normal Check CRT Check R609 Check C867 voltage ...

Page 30: ...BMZZ TRT BC856BLT1 SMD MOTOROLA S AA AB Q 0504 RH TX0204BMZZ TRT BD830 S AF AC Q 0505 RH TX0154BMZZ TRT BC546 PHILIPS S AA AA Q 0506 RH TX0152BMZZ TRT BC846BLT1 SMD MOTOROLA S AA AA Q 0510 RH TX0217BMZZ TRT BC337 PHILIPS S AA AB Q 0601 RH TX0132BMZZ TRT BU508DFI S AF AM Q 0602 RH TX0118BMZZ TRT BC635 16 BETA 100 S AC AC Q 0603 RH TX0142BMZZ TRT TBC 547 B TOSHIBA S AA AB Q 0604 RH TX0112BMZZ TRT BC...

Page 31: ...DIODE 1N5819 MOROROLA S AB AD D 0713 RH EX0405BMZZ ZENER DIODE BZX79C3V9 S AB AB REF No PARTS DESCRIPTION SN CODE EX CODE D 0714 RH EX0408BMZZ ZENER DIODE BZX79C5V1 S AB AB D 0715 RH EX0408BMZZ ZENER DIODE BZX79C5V1 S AB AB D 0716 RH EX0425BMZZ ZENER DIODE BZX79C27V S AA AA D 0717 RH EX0495BMZZ ZENER DIODE BZX79 B75V 2 S AA AB D 0718 RH EX0419BMZZ ZENER DIODE BZX79C15V 0 4W S AA AB D 0719 RH DX050...

Page 32: ...CCSTV1HL471J CERAM C 470PF 50V 2125SMD S AA AB REF No PARTS DESCRIPTION SN CODE EX CODE C 0625 RC FZ4224BMNJ POL FILM C 220nF 50V 5 ECQ V PANASONS AA AB C 0702 RC FZ0192BMZZ C 330NF 275V X2 222233820334 PHILIPS S AA AC C 0703 RC KZ0029CEZZ CERAM C 10NF 80 20 250V S AC AC C 0704 RC KZ0029CEZZ CERAM C 10NF 80 20 250V S AC AC C 0705 RC KZ0029CEZZ CERAM C 10NF 80 20 250V S AC AC C 0706 RC EZ0100BMZZ E...

Page 33: ...82 OHM 5 1 8W S AA AA R 0421 VRS TV1JD470J 2125 47 OHM 5 1 10W SMD S AA AA REF No PARTS DESCRIPTION SN CODE EX CODE R 0422 VRS TV1JD104J 2125 100KOHM 5 1 10W SMD S AA AA R 0423 VRS TV1JD472J 2125 4 7KOHM 5 1 10W SMD S AA AA R 0424 VRS TV1JD103J 2125 10KOHM 5 1 10W SMD S AA AA R 0425 VRS TV1JD104J 2125 100KOHM 5 1 10W SMD S AA AA R 0426 VRS TV1JD682J 2125 6 8KOHM 5 1 10W SMD S AA AA R 0427 VRS TV1J...

Page 34: ...S AA AA R 1033 VRD RA2BE104J RES 100KOHM 5 1 8W S AA AA R 1034 VRS TV1JD153J 2125 15KOHM 5 1 10W SMD S AA AA REF No PARTS DESCRIPTION SN CODE EX CODE R 1037 VRS TV1JD103J 2125 10KOHM 5 1 10W SMD S AA AA R 1038 VRS TV1JD221J 2125 220 OHM 5 1 10W SMD S AA AA R 1039 VRS TV1JD221J 2125 220 OHM 5 1 10W SMD S AA AA R 1041 VRS TV1JD221J 2125 220 OHM 5 1 10W SMD S AA AA R 1048 VRD RA2HD472J RES 4 7KOHM 5 ...

Page 35: ...Z TRT BF422 TOSHIBA S AA AC Q 0883 RH TX0180BMZZ TRT BF421 TOSHIBA S AA AB Q 0885 RH TX0180BMZZ TRT BF421 TOSHIBA S AA AB Q 0887 RH TX0180BMZZ TRT BF421 TOSHIBA S AA AB DIODES D 0811 RH DX0045BMZZ DIODE 1N4148 S AA AA D 0812 RH DX0045BMZZ DIODE 1N4148 S AA AA D 0880 RH DX0045BMZZ DIODE 1N4148 S AA AA D 0881 RH DX0045BMZZ DIODE 1N4148 S AA AA D 0882 RH DX0045BMZZ DIODE 1N4148 S AA AA COILS L 0881 V...

Page 36: ...22 37GQ 20FP RECICLED PAPER PRINTED BY ON ...

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