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SHARP TV REPAIR TIPS.

January 27 2008 at 10:19 PM
mrtips 

 
SHARP TV REPAIR TIPS.

SHARP TV REPAIR TIPS & ENGINEERS FAULT REPORTS.
21HS50H COLOUR SMEARING AND RINGING- REPLACE RESISTOR R8O4 (100R) O/C.
21HS50H NO SOUND -THE EEPROM WAS FOUND TO BE FAULTY.
28HW53H
28HW-53H (DA50W CHASSIS) FIELD COLLAPSE CHECK FOR BREAKS IN THE PRINT AROUND COIL L503 & SUROUNDING AREA.
28JW73 (GA20 CHASSIS) DEAD SET- IC 701 (TEA1507) BLOWN & D755 S/C.
32JW-73H (GA20 CHASSIS) DEAD NO LIGHTS ON - REPLACE CHOPPER IC (IC701).371M23H SERVICE MODE,PRESS AND HOLD FRONT +P AND -V KEYS WHILE SWITCHING ON MAINS
32LW92H (11AK45B5 CHASSIS). THE PICTURE IS TOO WIDE - D611 UF5407 LEAKY.
32LW92H DEAD & TRIPPING - REPLACE LOPTX.
37AM-23H 5BSA TUNING DRIFT. 100NF SURFACE-MOUNTED CAPACITOR C1013.
37AM-23H OFF TUNE JUST A BLUE SCREEN.SERVICE MODE, MEMORY'S HEX PROGRAM, LOCATION OD TO 9F.
37AM12 5BS
37AM12H 5BSA DEAD R704 R705(560K) STARTUP RESISTORS.
37AM12H INT INTERFERENCE TUNER/IF UNIT.
37AM12H POOR PIC+SOUND EEPROM CH-IX1463CJHC4 .
37AM12H POOR PIC/SOUND , NEW PRE-PROGRAMMED NVM PART NO CH-IX1463CJHC.
37AM23 5BSA
37AM23 LOST PIN NUMBER?:- PROCEDURE TO RESTORE SET TO WORKING ORDER IF PIN NUMBER LOST- PRESS VOLUME DOWN ON THE TV SET AND THE KEY SYMBOL ON THE HANDSET TOGETHER, NOTHING APPEARS TO HAPPEN. PRESS "MENU" AND SCROLL DOWN TO "LOCK" THEN PRESS MENU AGAIN. THE DISPLAY SHOULD HAVE CHANGED NOW ENTER THE NEW PIN NUMBER THEN EXIT, THIS PROCEDURE WILL WORK WITH MANY SHARP TV'S.
37AM23 NO GREEN,EEPROM Q708,Q704(BC338-40),C716(220UF10V).
37AM23H 5BSA ODD OSD EEPROM(IC1002).
37AM23H 5BSA POOR PIC/SOUND EEPROM IC1002.
37AM23H 5BSA SERVICE MODE, VOL+/VOL-/CHAN+ HOLD TOGETHER AND SWITCH ON.
37AM23H 5BSA TUNER DRIFT CAPACITOR C1013 100NF (SM).
37AM23H DEAD LOPTR=BU508DFI HT=105VN.
37AM23H NO TUNING BIG HEIGHT, IC1002 NVRAM
37AM23H NO TUNING OSD HI UP, MEMORY CHIP IC1002
37AM23H POOR PICTURE/SOUND OFF TUNE, SERVICE MODE THEN SET 0D=9F AND RETUNE.
37AM23H SERVICE MODE +P&-V &MAINS ON.
37AT25H
37AT25H 5BSA TUNER WON'T STOP AT STATIONS TUNER/IF UNIT.
37AT25H CHILD LOCK HOLD VOL-/PROG+ AND POWER ON SET NVM C5=00
Dead
DEAD 37AT25H CHECK R704/5 (560K1/2w) FOR HIGH RESISTANCE.
37AT25H DEAD- STANDBY LED FLASHING FAST MAINS (100UF 400V) SMOOTHING CAPACITOR O/C.
37AT25 HOW TO EXIT CHILD LOCK MODE IF PIN UNKNOWN:-
SWITCH TV ON AT MAINS SWITCH THEN PRESS VOLUME DOWN ON TV AND CHILD LOCK ON HANDSET TOGETHER THEN USING HANDSET PRESS "MODE" & USE CHANNEL UP/DOWN TO SELECT CHILD LOCK PRESS MODE & ENTER NEW PIN NUMBER & SELECT EXIT PRESS MODE.
37AM23H(5BSA CHASSIS) ONLY A SNOWY PICTURE -D211(3.3V ZENER) LEAKY .
37AT25H DEAD CHECK RESISTORS R704 & R705 (560K).
37CQ20H FIELD TOP BENT, CAPACITOR C713 DRIED OUT .
37DM23H BLUE SCREEN -TUNER UNIT FAULTY .
37DM23H DEAD SET- CHECK RSISTOR R404 (560K) FOR OPEN CIRCUIT.
37DT-25S
DEAD - FUSE OK
REPLACE Q701 (P3NA80FI) with a P4NB80FI-mbr. Check Q702 (BC338). Replace R703 CHECK ALL COMPONENTS IN SUPPLY. CHECK PCB FOR BREAKS / DRY JOINTS.
37ET35H EXCESSIVE BRIGHTNESS REPLACE THE TDA8840H SM.
37ET35H DEAD GOOD 300V NO 110V CHECK R704 & R705 (560K).
37FT16FP CHILD LOCK HOLD VOL-/PROG+ AND POWER ON SET NVM 4D to 00
37FT16FP CHILD LOCK,HOLD VOL -/PROG THEN SWITCH ON POWER
37GQ20H FIELD ODD/DISTORTED REPLACE Q501+Q502+C712 & C713.
37GQ20H NO STORE MICRO PRO SM.
37VT-24H
3702H WEAK RED GREEN OR BLUE DRIVE.
CHECK D807 D808 D809 AND CHECK/REPLACE THE TDA3566 CHIP.
3702H.
37VT24 VP-5
37VT24 COMBI SET TV NO PICTURE - CHECK R626 (1.2M) IN THE BEAM-LIMITER CIRCUIT.
37VT24 NO PICTURE - BEAM LIMITER RESISTOR R626 (1M2).
37VT24 STANDBY ON HIGH BRILLIANCE RESISTOR R626.
37VT24H COMBI STANDBY R626 (1M2).
49CS05H NO SIGNAL - TDA8375A .
4BSA SERVICE MODE 1 SHORT CONTACTS 2 & 6 ON BOARD TB CONNECTOR AND PRESS
'MODE' ON RC. REMOVE SHORT.STORE: AUTO. EXIT: 'MODE'.
51AT
51AT15 5BSA NO PIC/SND, Q704(BC338-40 OR BIGGER) 5V REG.
51AT151 5BSA NO LINE DRIVE-TRANSISTOR Q708 (BC337).
51AT15H 5BSA TOPTEL 198 .
51AT15H SERVICE MODE (V-,P+, MAINS ON)
51AT15H 5BSA ALL SORTS OF FAULTS C713...(1000UF 16V).
51AT15H 5BSA ALL SYMPTOMS CHANGE C713 (1,000UF 16V) IN PSU FIRST.
51AT15H 5BSA BLANK RASTER WITH FLYBACK LINES- D1002 NEAR REMOTE .
51AT15H 5BSA BLANK RASTER WITH FLYBACK LINES. SOUND OK. REPLACE DIODE D1002 (1N4148).
51AT15H 5BSA DEAD LOP TRANSISTOR Q704 + Q708 REPLACE ALL SECONDARY ELECTROLYTIC CAPS.
51AT15H 5BSA DEAD POWER NOISY, Q509+Q510.
51AT15H 5BSA DISTORTED FIELD C712 (220UF)+C713 (1000UF)+Q502+Q504+Q509+Q510+D501.
51AT15H 5BSA FIELD CRAMP C713 (1000UF 16V).
51AT15H 5BSA FIELD CRAMP NO OSD,Q509(BC635)+Q510(BC338).
51AT15H 5BSA GOES OFF SCREECHING+TUNING LOSS,Q708(BC338-40).
51AT15H 5BSA INT DEAD R611 3.3K, 0.5W Q708 BC338-40 THAT WAS OPEN CIRCUIT.
51AT15H 5BSA INTERMITTENT STANDBY -CHECK R611 IN LINE SCAN CIRCUIT.
51AT15H 5BSA LINE SPEED C713 (1000UF16V)+C714+C712+C719+C604+C622+C713.
51AT15H 5BSA LOW HEIGHT- C713 (1000UF 16V) LEAKY ON -10V LINE.
51AT15H 5BSA LOW HT (110VN) CHECK D716 (27V ZD)+ D717 (75V ZD).
51AT15H 5BSA LOPTR V-HOT Q604(BC636),Q602(BC635-16),Q708(BC338-40)
51AT15H 5BSA LOPTR(BU508DFI/BU2508AF) CAUSE C713(1000UF16V).
51AT15H 5BSA NO LINE DRIVE- Q708 (BC337).
51AT15H 5BSA NO REMOTE C713 (1000UF16V) -13V SUPPLY LINE.
51AT15H 5BSA NO SOUND/PICTURE Q509 AND Q510.
51AT15H 5BSA ODD SYMPTOMS C712 +C713+C 714+ C716+ C719 REPLACE THEM ALL!.
51AT15H 5BSA RED LED LOW +5V Q708 (BC338-40)+D715(5V1 ZENER).
51AT15H 5BSA RED/GREEN LINES AT TOP OF PIC,D504(1N4148).
51AT15H 5BSA TOP/BOTM CRAMP C712 C713 Q502 BD825, Q504 BD828, Q509 BC635, Q510 BC338 D501.
51AT15H 5BSA TUNER WON'T STOP, SERVICE MODE AFT OFF MOVE TO CENTER..
51AT15H 5BSA JUST SNOW-R243 (5R6)&C713 AS USUAL.
51AT15H CHILDLOCK VOL- AND RC |"|/KEY THEN MODE THEN UP/DWN TO KEY THEN MODE
51AT15H COLD LINE SCREECH,LINESPEED C604(220UF16V) NR LOPTR.
51AT15H DEAD CHOPTR(P3NA80F1) LOPTR(BU508DFI)+LOPTX HR7256
51AT15H DEAD - DUFF LOP TRANSISTOR & BU508DFI & C713
51AT15H 5BSA CHASSIS, DEAD , RED LED STANDBY COMES ON THEN FADES AWAY, +5V LINE LOW, REPLACE Q708 REG TRANS. (BC338-40)
51AT15H EEPROM REPROGRAM,AUTO TUNE+FINE TUNE+ REMOTE'KEY'.
51AT15H FIELD TOP FOLD TIP41C+TIP42C+BC337+Q509(PNP2A).
51AT15H GOOD 114V ETC NO LINE DRIVE BC338 5V REG... Q708+ D505 2V7ZEN .
51AT15H LOW WIDTH/STRIATION 300V SIGHTLY LOW, LOPTX HR7256. .
51AT15H NO 114V GOOD 300V LOPTR BU508DFI. .
51AT15H NO LINE DRIVE Q708 (BC338-40) IN 5V FEED.
51AT15H NO TEXT 2SC2412 SM Q806,
51AT15H NO TEXT ONLY FASTTEXT, 2SC2412 Q806.
51AT15H PURPLE PICTURE- ENTER SERVICE MODE (V-,P+, MAINS ON),GREEN AT ZERO.
51AT15H SNOWY PIC SWAF SF201
51CS LOPTR REPAIR KIT 51CSCHASSISKIT
51CS03 CS
51CS03H CS DEAD PSU OK, TDA8374B IC201CAISE LOPTX ARCING, VERY
51CS03H CS, NO LINE DRIVE CAUSED BY LOPTX ARCOVER (DESTROYED THE TDA8374B).
51CS03H SLOW START UP - REPLACE C714 (1000UF16V)
51CS05 CS
51CS05 STANDBY - Q303 & Q304.
51DS02H FRONT VOLUME UP/DOWN DIDN'T WORK. R705 (68K).
51DS02H STBY, R705(68K).
51DS03H STUCK ON A CHANNEL- RESISTOR R704 (68K) GONE HIGH.
51DS03H STUCK IN STANDBY- R705 (68K) HIGH RESISTANCE.
51DT25H CA1 CHASSIS. THE SET IS STUCK IN STANDBY WITH A LOUD "MOTORBOATING" NOISE COMING FROM THE SPEAKER - REPLACE CAP C712 (220UF 25V)
51DT25H CA1 DEAD/STBY SPEAKER NOISE, CHECK C712(220UF 25V).
51DT25H WEIRD NOISES HEARD FROM THE LINE OUTPUTSTAGE / TRIPPING - L604 WAS FOUND TO BE OVERHEATING AND D604 WAS SHORT CIRCUIT.
51DT25H ALL SORTS OF WEIRD PROBLEMS - EEPROM (ADD MOD KIT).
51DT25H COLD PIC LINES,C604(220UF25V)
51DT25H DEAD 2*560K.
51DT25H FIELD COLLAPSE INTERMITTENT - RESOLDER O/P PAIR+SCANCOIL.
51DT-25H STUCK IN STANDBY , CHECK R704 (560K) (START UP RESISTOR) AND R705 (560K) (START UP RESISTOR), REPLACE THEM BOTH WITH 350 VOLT 0.75 W METAL FILM TYPES.
51DT25H INTERMITTENT LOW HEIGHT/OFF TUNE,MOD KIT CURES IT.
51GT25H 109VN 10V LOPTX RTRNF2048BMZZ=HR8033
54AT15SC SERVICE MODE HOLD VOL- AND PR+ ON TV THEN SWITCH ON MAINS. STORE:'POWER'.
56FW53 DA100 NO PICTURE THE SOUND IS OK-D610 (1N4933) & C613.
56FW53H SET IS DEAD WITH R613 IN THE LINOUTPUT STAGE GETTING HOT, CURE REPLACE C613 (560NF 250V)+ CHECK EW TRANSISTOR Q506 ( 2SD2391)
56FW53H DA100 LOPTR AGAIN,C607(330UF10V),D610,D611(IN4935)
56FW53H DA100 STBY D735(ZENNER),C720,OPTO(IC705)
56FW53H DA50W DEAD D735(150VZD),IC705(OPTO),Q702,Q703 SM
56FW53H DA50W EW ,C613(560NF250V)
56FW53H DEAD - LOPTR (BUH515)+R613+R623(1R)+D753(BZW04-145)+OPTO
56FW53H EXCESSIVE HT- OPTO NEEDS REPLACING.
56FW53H DEAD- OPTOCOUPLER, LOPT, AVALANCHE DIODE & HT CAPACITOR.
56FW53H SERVICE MODE SWITCHING ON WITH VOLDWN AND CH UP BUTTONS PRESSED.
56FW53H DEAD STUCK IN STANDBY- LOP TRANSISTOR (BUH515) & LOPTX.
59C03H DEAD LOPTR BUH515+ DRY JOINTS ALMOST EVERYWHERE.
59CS03
59CS03 DEAD BUH515+C616 (470UF 35V).
59CS03 DEAD/STBY LOP TRANSISTOR (BUH515) & DRY JOINTS IN LINEOUTPUT STAGE.
59CS03 LOPTR REPAIR KIT 59CSCHASSISKIT
59CS03H CHOPTX HR271N/9475 963718300
59CS03H CS BUH515 LOPTR,SCANCOIL PCB, C601
59CS03H CS CHOPTR MOSFET R706. D718 ,LOPTR D601 1N4935 D619 D621 ETC
59CS03H D3000 BLANK WHITE RASTER, VCU2136A CHIP,
59CS03H D3000 ODD CONTRAST, VCU2136A CHIP,
59CS03H D609+D610 INT O/C BLOWS PSU KIT 59CSCHASSISKIT TOO DEAR.
59CS03H DEAD TDA8375A PIN 56 S/C TO CHASSIS CONNECT -2V TO BLOW IT OPEN.
59CS03H DEAD,2SA1797Q SM Q305 Q306, D301 AND D302. D305 14933
59CS03H DEAD,Q305(2SA1797QSM) D305(IN4933)+PINS EVERYWHERE.
59CS03H INTERMITTENT GREEN- RESOLDER CRT BASE MOSTLY AT THE BOTTOM.
59CS03H NO LINE DRIVE REPLACE CAPACITOR C714( 100UF 16V).
59CS03H NO OSD/TEXT NVRAM
59CS03H STUCK IN STANDBY C714 (1,000UF10V).
59CS03H,CS
59CS05 CS
59CS05G D609+D610 INT O/C BLOWS PSU KIT 59CSCHASSISKIT TOODEAR.
59CS05H CS
59CS05H DEAD /TRIPPING LOP TRANSISTOR BUH515.
59CS05H LOPTX SQUEALING R712(5R6).
59CS05H POOR PICTURE POOR FOCUS- CHECK RESISTOR R618 2K2
59CS05H STBY Q303 Q304.
59CSD8H MANY VARIED FAULTS -C714 (1000UF 16V) IN PSU.
59CSO3H DEAD,KIT(59CSKIT) TDA8375A SM CHIP IC201. VERY EXPENSIVE
59DS03H
59DS03H THE LINEOUTPUT TRANSISTOR OFTEN DIES BECAUSE C613 (680NF 250V) IS EITHER DRY JOINTED OR FAULTY.
59DS03H FIELD COLLAPSE & BURNING SMELL Q501 & Q502 FAULTY & F601 & F602 OPEN.
59DS03H DEAD CHOPTR FET,ZD712,BUH515,Q702(BC338)
59DS05H
59DS05H CA10 DEAD LOPTR (BUH515) +RESOLDER ALL CAPS NEAR TO.
59DS05H CA10 DEAD LOPTR(BUH515) +RESOLDER SCAN COILS PCB.
59DS05H CA10 NO PICTURE L604+R613 (2K2)+C613 (680NF 250V)+C619 (2U2F 160V) & THE BUH 515.
5INSON
63CS03S CS SERVICE MODE PRESS/HOLD VOL- AND PR+ ON TV THEN SWITCH ON MAINS STORE: 'POWER'.
66AS05 4BSC
66AS05 DEAD, LOPTR(2SD1546/BU2508AF)+Q606(2SC2412SM).
66AS05H 4BSC DEAD IC500+C506(100UF35V) LEAKY.
66AS05H 4BSC, DEAD TICKS,LOPTX.SCAN COIL PLUG
66AS05H LOPTR(2SD1546/S2000N),Q601(2SC2271),Q606(2SC2412),MC44002P/MC44007P
66AS05H NO LINE DRIVE -REPLACE IC800 (MC4402).
66AS06H BCTVA FIELD COLLAPSE D601(95G/UF5408)UNDER 10R10W +C623(100UF25V)
66AS06H DEAD LOPTR(2SD1546.BU2508AF) CAUSE SCAN COIL PCB/SOCKET
66ASO5H 4BSC DEAD HOT SMELL, FIELD OUTPUT CHIP IC500 C506 100UF, 35V
66CS03
66CS03 C714(1000UF10V)+ SCAN COIL PLUG PINS..
66CS03 DEAD 2N2F 2KV UNDER PCB LEAKY.
66CS03 TRIPPING OUT - CHECK C714 (1000UF 10V) BY REPLACEMENT.
66CS03H
66CS03H FIELD CRAMP AT THE TOP OF THE SCREEN WHICH IMPROVES AS THE SET WARMS UP REPLACE C512 (22UF 50V) (STOCK FAULT).
66CS03H DEAD BUH515 LOPTR & C604 (330UF).
66CS03H COLOR BLOB SCRN 5R6 R643 10V ZENER D632 R631
66CS03H CS
66CS03H D609+D610 INT O/C BLOWS PSU KIT 59CSCHASSISKIT TOO EXPENSIVE.
66CS03H DEAD LOPTR(BUH515)+C601(12NF1K6V)+CHOPTR+C714+
66CS03H DEAD LOPTR(BUH515)+LOPTX RTRNF2035BMZZ=HR7340.
66CS03H DEAD LOPTR(BUH515)+LOPTX/CHOPPERTX PINS.
66CS03H FIELD TOP CRAMPING REPLACE C512 (22UF50V)
66CS03H FOCUS "BLOBS". NO 45V. R643+D623 (10VZD)+R631.
66CS03H LOPTR BUH515+C604(330UF10V)C616(470UF35V)+C618.
66CS03H LOPTR+C604+C714+SCANCOIL PLUG PINS.
66CS03H SLOW AT STARTING- REPLACE CAPACITOR C714 (1000UF 25V) & D712.
66CS03H IN STANDBY C714 (1000UF 10V).
66CS03H TOP CRAMPING R643 (5R6)+D623SM (10VZD)+R632
66CS05 CS
66CS05 CS BUH515 LOPTR, Q707 BC338-40,
66CS05 STANDBY ONLY - Q303 & Q304.
66CS05H D609+D610 INT O/C BLOWS PSU KIT 59CSCHASSISKIT TOO DEAR.
66CS05H,CS
66CSO3 DEAD ONLY ORANGE NEON GLOWING- A 2.2NF 2KV BLUE DISC CAPACITOR CONNECTED ACROSS THE LINEOUTPUT STAGE TUNING CAPACITOR ON THE UNDERSIDE OF THE PCB WAS SPLIT.
66DS03H CA10
66DS03H CA10 DEAD LOP TRANSISTOR (BUH515) + C613 (600N250V) +Q701+ R716+ D712+ R720+ Q702+ Q703.
66DS03H CA10 DEAD R713+ R714+ R704+ R705
66DS03H CA10 EXCESSIVE HT- REPLACE THE OPTO CHIP.
66DS03H CA10 SCAN COIL PLUG BURN UPS COMMON.
66DS03H CA10,DEAD Q702+ Q703+OPTO
66DS03H DEAD CHECK / REPLACE C613.
66DS03H DEAD LOPTR (BUH515/S2000AFI.
66DS03H FIELD HALF COLLAPSE, F601,F602(2A5) FUSES.
66DS03H NO REMOTE OR BUTTONS IC101 MIRCOPRO.
66DS03H NO REMOTE OR BUTTONS R704/R705(68K).
66DS03H STBY LOPTR(S2000AFI),C608
66DS05H CA10 NO PIC L604,R613(2K2),C613(680NF 250V),C619 (2U2F 160V) BUH515
66DS05H STBY LOPTR(BUH515),C613(0U68F250V).
66ES03H CA10 FIELD COLLAPSE C613 (680NF 250V)& R613 (2K2 2W)
66ES03H CA10 DEAD LED LIT RED-C806 (680NF)+LOPTR (BUH515)& R713 (560K).
66ES03H CA10 FIELD COLLAPSE F601& F602.
66ES03H, NO PICTURE , THE LED WAS FLASHING BETWEEN ORANGE AND GREEN.Q602 WAS S/C C613 AND C608 WERE BOTH DRY JOINTED & THE SCAN COIL PLUG WAS RESOLDERED AS USUAL.
66ES03H CA10 LOPTR +C613 (680NF 250V)+C608.
66ES03H CA10 STANDBY- R704+ R705+ R713+ R714.
66ES03H CA10 STANDBY-C613 (680NF 250V)
66ES03H CA10,FIELD CRAMP-Q501&Q502+F601.
66ES03H DEAD C613 (680NF 250V )& LOPTR (BUH515)+ R613 (2K2 2W).
66ES03H FIELD TRANSISTORS FR9120TM/FR9110TM
66ES03H IN4936 +C619+R610+R613, CAUSE C613 PINS.
66ES03H NO PIC/TRIPPED Q701(IRFR9120 SM)+FUSIBLE FEED RESISTOR
66ES03H CA10, THE BUH 515 LINEOUTPUT TRANSISTOR BLOWS AT SWITCH ON- C607 (330UF 16V) = REPLACE IT!
66ES05 NO REMOTE OR BUTTONS R704/R705(68K) NR ON/OFF SWITCH.
66ES05 STANDBY ONLY - REPLACE RESISTOR R713 (680K).
66ESD7H DA100 NO PICTURE SOUND OK( FIELD COLLAPSE) -REPLACE CAPACITOR C501 (470UF 25V).
66FW53
66FW53H DA100,POWER SURGE ONLY,NVRAM CHIP SM.
66FW53H FW CHASSIS.
66FW53H DEAD (DA100)-560 NF S CORRECTION CAP DRY JOINTED.
66FW53H EXCESSIVE WIDTH & EW BOWING - REPLACE EW DRIVE TRANSISTOR Q506 (2SD2391) AND CHECK L603 FOR SHORTED TURNS.
66FW53H DEAD CHECK D735 ACROSS THE 150V LINE, IF SHORT CIRCUIT REPLACE THE OPTO CHIP & D735. + CHECK THE Q601 LOP TRANSISTOR FOR LEAKS.
66FW53H DA50W DEAD & THE LOP TRANSISTOR (BUH515) DIES AT SWITCH ON - REPLACE CAPACITOR C607 (330UF 25V) AND CHECK FOR DRY JOINTS IN THE LINE DRIVER AND OUTPUT STAGES.
66FW53H DEAD - REPLACE Q601 (BUH 515) + R623(1R) 2 WATT SAFETY TYPE & REPLACE OPTOCOUPLER (1C705)+ R765 AND R766 (BOTH 100R) & ALSO FAULTS WERE FOUND ON THE TUBE BASE PCB IC1801 (TEA5101A)+ Q5407 (2SA1837)+ Q5408 (2SC4793) + R5425 (470R (1W). 66FW53H DA50W DISTORTED SOUND, NEW PLUG IN DAUGHTER PCB DUNTK7285BMW1.
66FW53H DA50W STANDBY- OPTO IC705 (HIGH HT).
66FW53H DA50W STANDBY LOW HT- CHECK DIODE D772 (1N4934).
66FW53H DA50W STANDBY-LOPTR (BUH515) & C613 (560NF).
66FW53H DA50W WARM SET HAS REALLY LOW CONTRAST ,TEA5101B ON CRT BASE PCB
66FW54
66FW54H DA100
66FW54H NO PICTURE , TICKING NOISE FROM SET, C613 (560NF)O/C.
66FW54H ,NARROW BOWED PICTURE = Q506 E/W TRANS FAULTY.
66FW54H O/VOLT PROTECT DIODE ACROSS C720(100UF200V) CAUSE OPTOISOL
66GS-62H TUNER DRIFT, REPLACE IC 201
66GF-63H BRIGHT WHITE SCREEN WITH FLYBACK LINES GOOD SOUND, CHECK Q912 ON THE TUBE BASE FOR OPEN CIRCUIT.
76FW-53H DA100 CHASSIS.
76FW-53H NO SOUND OUTPUT FROM ONE CHANNEL - REPLACE THE TDA 7480 CHIP.
76FW-53H PICTURE DARK AND SMEARY - IT LOOKS AS IF THE CRT IS FAULTY (ALTHOUGH THE CRT IS ACTUALLY FINE) & SLIGHT HORIZONTAL SHADING ON THE PICTURE IS PRESENT- REPLACE CAPACITOR C1811 (10UF) ON THE CRT BASE PANEL.
76FW-53H NO EW CORRECTION / PICTURE TOO WIDE - C613 , AND OR IC801 (VDP3120B).
76FW-53H DA50W LINE COLLAPSE, C620,D613,C619,R613,C613
76FW-53H DA50W SNOWY PIC, TUNER UNIT
76FW-53H NO PICTURE SOUND OK & FIELD CRAMP- Q503(FET IRFR010TM).
76FW54H DA100
76GF-64H
5BSA CHASSIS SMALL PICTURE- D716 (27V) + D717 (75V)
7PS
7PS DEAD Q604,D607(ZD EX0047CE)
7PS DEAD STR40090,CHECK R711 PINS AREA
7PS INT TRIPS R623(1M2)
7PS NO SOUND,NO CHANNEL CHANGE NO TUNE, BUTTON STUCK
7PS TRIPS LOPTX
8PS INT SHUTDOWN +4 MINS R623(1M2) NEAR V-LIN POT.
8PS INT SHUTDOWN / START CRACKED PCB UNDER LOPTX 25V LINE.
8PSR TOP CRAMP/FOLDOVER C502 (220UF 25V)
8PSR DARK PIC HEATER FEED RESISTOR HI (1R5)
8PSR DEAD 1 LED FLASH, C723(3U3 50V BIPOLAR) NR CHOPTX P2
8PSR DEAD 1 LED FLASH, D632 NR C731
8PSR DEAD INT C723 3U3 NON POL 2*6.8 BAK2BAK).
8PSR DEAD. REPLACE R679 (100K).
8PSR FIELD COLLAPSE X0238CE.
8PSR FIELD COLLAPSE X0238CE/UPC1378H.
8PSR LOPTX=2435261
8PSR NO SYNC Q1603 ON THE SCART PANEL. A 2SA950/2SA966
8PSR NT BLANK RASTER, T207.
8PSR SURGE/DEAD R679 100K + 12R 10W RESISTOR .
8PSR TOP CRAMP/FOLDOVER- REPLACE C502 (220UF 25V).
8PSR TOP CRAMP/FOLDOVER C538 (470UF 50V)+C502 (220UF 35V.)
8PSR WARM GOES TO STANDBY- DISABLE TRIP BY DISCONNECTING Q603. NEAR 12R 10W CERAMIC RESISTOR.
8PSR WARM STBY R623(1M2)
8PSR WARNING READS LOW ACROSS LOPTR C/E 3K NORMAL
8PSR WATER MARK DOWN PIC,C318(220UF25V) PSU OUTPUT.
BUH515+LOPTX RTRFN2049BMZZ=HR8032
C095
C095 LOSS OF MEMORY R1072 (33K)
C1001
C1001 BLANK PATCH, R429 IN THE BLANKING CIRCUIT.
C1403H WARM STBY, R623(1M2)
C1405 DEAD L702 O/C C708 LEAKY(400V22UF)
C1405 LOPTX SPARKING MSH1FCB01A/5710/F1412CEN1.
C1407 DEAD INTERMITTENT R636 (3K3) LINE DRIVER FEED.
C1407 FIELD COLL X0238CE(UPC1378)
C1410
C1410 DEAD LO RESIS ACROSS LOPTR ,DIS PINS 3/4 OF LOPTX MSH1FCB04 HR7759.
C1410 4PS DEAD BURST OF HT BUT NO LINE DRIVE
C1410 4PS DEAD SNAPPED OFF LINE DRV TX.
C1410 4PS NO LINE LOCK. RESETTING R611(SHORT TP601/2)R647(300R PRESET)
C1410 DEAD GOOD 300V, LOPTX S/C PINS3/4 TO EARTH MSH1FCB04 HR7759.
C1410HW
C1410HW DEAD,LOPTX
C1411 4PSR1
C1420 7PS
C1420 DEAD STR40090 CAUSED BY ARCING BETWEEN ADJACENT PRINT TRACKS, DUE TO FLUX ON PCB.
C1420 DEAD STR40090 ARCING WAS BETWEEN R711 AND THE JUNCTION OF R721/R711 AND C708/L705.
C1420H 7PS
C1420H NO SOUND T301 ADJUST IN IF CAN.
C1420H INT NEG PIC, TUNER UNIT
C1420H NO CONTROLS WORK, CHANNEL CHANGE BUTTON STUCK
C1421 7PSR1
C1421 7PS
C1421 EXCESSIVE BRILLIANCE (LOW VIDEO HT) C620 REPLACE (4U7F 250V)+R620 (22R).
C1421 LOW SOUND CHECK/REPLACE/RESOLDER L301 IN THE I.F. UNIT
C1421H 7PS LINE JITTERS REPLACE R308 (820K).
C1421H DEAD RELAY CLICKS GOOD 300V NO HT STR40090.
C1421H STBY, RELAY RY701
C1430H
C1430H SEE 8PS
C1431 SEE 8PSR
C1431H SEE 8PSR
C1431H SEE 8PSR
C1480 TAP-812
C1491 REDIFFUSION MK5
C1491 BLANK RASTER/ NO SND SWAF FAULT MODIFY ADD .001 BEFORE PIN 7 OF CHIP.
C1493
C1495
C1495 FIELD COLLAPSE R511 15K R512 1K2
C2072 LO HEIGHT R606 12K R237 15K
C2072 NO SOUND- REPLACE RESISTOR R319 (270R).
C2072 POOR SYNC, Q209.
C2092
C2095
C2095 WON'T TUNE (ALL) ACROSS SCREEN TC4081 QUADTWOINPUTNAND.
C2095 WONT TUNE TO VCR, TC4081 QUAD TWO-INPUT NAND GATE CHIP IC11012
C2705H LOPTX=MSH1FCB01A=HR7753.
C3703 7PS STR40090 .
C3703H 7PS
C3703H 7PS DEAD STR40090
C3703H GOES OFF INTERMITTENTLY - D502 DRY JOINTED.
C3703HBK 7PS CHASSIS.
C3703H
C3704 8PS
C3705 4PSR1
C3705H 4PS
C3705HD 4PS NO LINE LOCK. RESETTING R611(SHORT TP601/2) R647(300R PRESET)
C3705HD RED LED ONLY RELAY PINS, NEED REMOTE TO START.
C3706 14B
C3720 14A INT BRILL,Q604 NR MAINS SWITCH
C3720H 14A RED/GREEN/RED DEAD NO LINE DRIVE R521 3R9.
C3720H 14A STBY, R521(3R9) NR LOPTX
C3720H 14A, NO LINE DRIVE R521(3R9) FROM LOPTX.
C3720H D502 AND R521 IN THE 24V FIELD COLLAPSE
C3720H STBY LED, MAKE SURE ALL BUTTONS OUT, IF ONE STUCK IN , DEAD.
C3720H SURGE/DEAD R521 3R9 FIELD OUTPUT
C3720H TUNER DRIFT 30V REG.
C3720H TUNING DRIFT 33V REG IX0037CE,
C3720H WEAK BLUE, D807 ON THE SMALL SUB-PANEL CONNECTED TO THE TUBES BASE PANEL
C3720H(D) GOOD HT (115V) NO LINE ,APART FROM SWITCH ON BURST,R521(3R9) NR LOPTX PIN 10.
C3730 14B
C3730H 14B
C66CSD8H DEAD LOPTR HOT ,LOPTX OR D609(IN4933) READS OK.
C66CSD8H SLOW START,C714(1000UF10V)
CCES
CS 51CS KIT 51CM TUBES, 59CSHASSISKIT FOR THE 59CM VERSION.
CS BAD SND C369.
CS DEAD PSU KIT(59CSKIT)+R704,R720,C604 330UF,R638 AND R641 TO 390R, 2W.SCAN COIL PLUG
CS LOPTR REPAIR KIT 51CSCHASSISKIT/59CSCHASSISKIT
CS NVR RESET,IN TESTMODE 00,VALUE 01,REMOTE STORE,MAINS OFF/ON SLOW START.
CS SERVICE MODE FRONT OFF,HOLD BOTH CHANUP/VOLDWN, MAINS ON,HOLD (2) 6 SECS
CS SND DISTORT 1 CHAN 24V ZENERS SM
CS TOP CRAMP D501SM,D502SM.
CV2121 7PSR1
CV2121 POOR GREYSCALE CRT. HAVE CCT DIA.
CV2121H 7PSR1
CV2123 7PSR1
CV2123H DEAD CEPT FOR LIGHT STR41090.
CV2123H DEAD/STBY STR41090
CV2123H 7P-SR1 TRIPS STR41090 CHOPPER CHIP
CV2123H 7PSR1
CV2123H RED LED, RELAY CLICKS, STR41090
CV2123H WAEK PIC, R621 1R2 CRT HEATER FEED
CV2131H
CV2131H SEE 8PSR
CV2133
CV2133H
CV2133H 8PSR
CV2133H 8PSR DEAD -THE LED FLASHES BRIEFLY AT SWITCH ON THEN FADES OUT- REPLACE CAPACITORS C714 (10UF100V)+ C716 (47UF 63V) C723 (3U3UF 50V NON POLARISED). ON PSU PRIMARY.
CV2133H 8PSR DEAD STRD5441
CV2133H 8PSR TEXT LINES AT TOP REPLACE CAPACITOR C502 (220UF 25V) .
CV3707 5PSR1
CV3707H 5PS
CV3707HD NO LINE DRIVE, IX0714CE MICROCONTROLLER CHIP FROM WILLOW VALE EXPENSIVE
CV3707HD NO LINE DRV,SWITCH, S1011, IN Q605'S CAN BE USED TO BY-PASS STBY
CV3709H 7PS
CV3720H 10 SECS THEN STBY (WITH SIGNAL) R623(1M2).
CV3730
CV3730H SURGE DEAD, R623(1M2)
CV3745 14B
CV4833 14B
CV5407 5PS
D3000 SERVICE MODE PRESS SERVICE- ON DIGI-MODUL.STORE:ON/OFF. EXIT: SERVICE .
DA100 DEAD, C611,2SD2391-SM,D603,D604,L603,L604,R610(1R),C528,D502,D516,IC705
DA100 HIGH HT OPTO IC705 145VN, WARNING SOLDER HEAT WILL HURT IT
DA100 HIGH WIDTH IC801(VDP3120B)
DA100 EXCESSIVE WIDTH REPLACE CAPACITOR C613 (560NF 250V).
DA100 SERVICE MODE HOLD TV VOL-/CHAN+ AND POWER ON,STBY=STORE NEED REMOTE
DA100 STBY PSU OK,NO LINE DRV,EEPROM
DS DEAD LOPTR(BUH515),C608,C613.
DS DEAD Q701(2SK2605),Q702,Q703,D712(15VZD),D713,D730,C713(68NF),R716(0R47)
DV-7032S 4BS-C NO LINE DRIVE,C755(1000UF16V)
DV1512 EURO DS1
DV1512 EURO DS1 CHOPTR, REPAIR KIT FROM WILLOW VALE (PART NO. 275`0PK).
DV1600
DV1600 EXCESS BRILL/LOW HEIGHT, LINE OUTPUT TRANSFORMER,
DV1620
DV2120 TOP FLAGWAVING/ INT COLOUR C607(1UF50V) NR PIN14IC501.
DV2120 4PS
DV2121 4PS
DV3750 S3B
DV3750H S3B
DV3750H Will not work, standby (red) LED flashing
C604 in the 12V line is FAULTY
DV3760H
DV3760H (4BSA CHASSIS) THE SET IS STUCK IN STANDBY , REPLACE C604 (1000UF 16V ) AND R601 (0.68R) SAFETY RESISTOR.
DV3751 DEAD R728 O/C 3K3 15V REGULATOR Q705 330V TYPE F487.
DV3751 NO SOUND R214 / BROKEN BY REAR COVER .
DV3751 S3B
DV3751 AFC/TUNE R214 BY THE TUNER
DV3751 POOR STARTING CHECK R601 (5.6R.)
DV3751H INT STARTING/DEAD, LOW WIDTH - REPLACE R601 (5R6).
DV3751H S3B
DV3751H SERVICE MODE S/C PIN 1-2 PLUG DB THEN PRESS MODE THEN REMOVE S/C.
DV3760 DEAD PULSE NOISE C604 1,000UF 16V
DV3760 RAGGED VERTICALS,C602(100UF160V) YELLOW TYPE
DV3760 STUCK IN STANDBY- C604 (1000UF 16V).
DV3760 STBY ,LOPTX
DV3760H
DV3760H Sharp TV Model: DV3760H
DEAD LED FLASHING RED/GREEN AT FIRST THEN GOING TO RED STANDBY ONLY C604 FAULTY(1000UF 16V)
DV3760H 4BSA DEAD NO 13V,D602.
DV3760H 4BSA NO SOUND DA7052A(SM)
DV3760H 4BSA STBY C604(1000UF16V).
DV3760H 4BSA TRIP LED FLASH D602(IN4936) IN PSU 13V LINE.
DV3760H DEAD 2AT+IN4005(BY127) NO CAUSE 13A ADAPTOR ?.
DV3760H DEAD S/C ACROSS LOPTR= D601 (1N4937 6000V 1A S/C).
DV3760H DEAD 1N4997 HT RECTIFIER D601 PART NO, IS DX0515BM.
DV3760H DEAD GOOD 300V,NO SHORTS TEA2261.
DV3760H DEAD NVRAM OR C612.
DV3760H DEAD S/C ACROSS LOPTR, LOPTX HR7559 .
DV3760H DEAD TEA2261.
DV3760H DEAD TRY DIS D609,THEN 5V REG.
DV3760H DEAD. D601 1N4937, 600V,
DV3760H EXCESS BRILL,LO VIDEO HT(146VN),C879 ON CRT BASE.
DV3760H FIELD COLLAPSE,R501(1R)
DV3760H LED GREEN/RED/OFF TRY SHORTING LOPTR B/E IF GREEN LED LOPTX HR7559 NEEDS REPLACING.
DV3760H TRIPPING LED FLASHING. D602 1N4936
DV3761 4BSC
DV3761H 4BSA FIELD LIN,C512(82NF)
DV3761H 4BSC
DV3761H DEAD S/C LOPTX HR7559.
DV3770 4BSA
DV3770H DEAD LOPTX HR7559.
DV3770H 4BSA
DV3770H 4BSA DEAD NO 13V,D602.
DV4205 4PS
DV5101 EURO-DS
DV5101 DEAD R700 8R2 7W CHOPTX(SMT0009172/93911.01 =HR9437 =HR290N)
DV5101 EURO DS1 BLUE SCREEN C257 330UF16V)+ZD 2.1V D250.
DV5101 EURO DS1 DEAD LOPTX .
DV5101 EURO DS1 DEAD C257 330UF, 16V 2V1 ZENER DIODE D250
DV5101H EURO DS
DV5103H
DV5103H EURO DS1
DV5103H CHROMA SHIFTED, PLUG IN NON-VOLATILE MEMORY CHIP ON THE DIGITAL PCB.
DV5103H DEAD 2A CHOPTX PRIMARY TO EARTH LEAKY.
DV5103H DEAD HT(113V)=45V D754(6V2ZENNER) LEAKY+CNX82A
DV5103H DEAD LOW HT HT PRESET R755(2K2).
DV5103H DEAD LOW HT (113VN) 6V2 ZENER DIODE D754 CNX82A OPTOCOUPLER
DV5103H DEAD LOW HT FIELD Q509(BC635)+Q510(BC338)+C236+C502.
DV5103H DEAD LOW HT, Q509 BC635 AND Q510 BC338 . C236 AND C502
DV5103H DEAD R700 8R2 CHOPTX(SMT0009172/93911.01 =HR9437)
DV5103H DEAD R701/702/703(82K) TO 12V STARTUP REGULATOR
DV5103H EURO DS1 LO SND, C321(470UF10V).
DV5103H EURO DS1 NO/WEAK SND Q300(2AC547)+IC300+TDA1905.
DV5103H EURO DS1 SLOW START C707(22UF50V)C713(1UF50V),Q700(BF487).
DV5103H FIELD O/P CHIP TDA8175 +FUSIBLE RESISTOR.
DV5103H HI HT(113V) R754(150K) OR CNX82A
DV5103H INT DEAD ,NO LED,D704(13V ZD) TEA1039 C707(22UF50V)
DV5103H LOW HT HT PRESET R755(2K2).
DV5103H LOWPTR LOPTX C612
DV5103H NO LINE DRIVE - DIGIPANEL.
DV5103H SERVICE MODE S/C PIN 1-2 PLUG DB THEN PRESS MODE THEN REMOVE S/C.
DV5103H SHIFTED COLOR IC1402 SMALL PLUG IN CHIP IN DIGITAL PCB (NV-RAM).
DV5103H STBY HI HT(113VN) R753/781(39K).
DV5103H STBY,HI HT, R754 150K CNX82A OPOCOUPLER.
DV5103H STBY,LO HT, R753 AND R781, 39K
DV5103H TRIPPING, HI HT R754(150K) OR CNX82A.
DV5105
DV5105 THE SET WONT COME ON & THE GREEN LED ON THE FRONT PANEL IS LIT - R751 (O.33R) HAD RISEN IN VALUE TO 1 R CAUSING THE SET TO BE A NON STARTER.
DV5105 DEAD- CHOPPER TRANSISTOR IS S/C REPLACE R705 (3K3)+ R700 (100R) & THE TDA1039.
DV5105 DECO-4
DV5105 15V DRIFT ZENER D754 (6.2VOLT TYPE).
DV5105 DEAD FLICKING STANDBY LED GREEN/RED ,LINK D1005 OUT +R1053TO 1K0.
DV5105 STANDBY RED/GREEN LED FLICK, IC1005 D1005 R1053 AS A LINK.ZENER DIODE D754 6.2V
DV5105H DEC0 4 DEAD STUCK IN STANDBY & LOW 5V R751 (0R33) FEED TO Q753 O/C.
DV5105H DECO-4
DV5105H DECO-4 DEAD CHOPTR,MJF18004C TEA1039 R706(3R3) R710 + CHOPPER TRANSFORMER T700,
DV5105H DECO-4 STUCK IN STANDBY- REPACE Q753 & R751 (0R33).
DV5105H DECO4 CHASSIS. CHOPPER(MJF18004C)+TEA1039+R706+R710(3R3)+CHOPPER TX.
DV5105H STBY,RED/GREEN/RED R751, 0R33 FROM PIN 13 OF THE CHOPPER TRANSFORMER.
DV5107 DECO-5
DV5107 CHOPTR(MJF18006/BUT11AF) + LOPTX(HR7492) .
DV5107 DECO4 DEAD CHOPTX +CHOPTR(MJF18006)+TEA1039
DV5107 S/C CHOPPER (MJF18006) +D719(1N4148).
DV5107H DECO4 DEAD WITH THE 2.5AMP FUSE O/C- REPLACE THE FUSE THEN REPLACE THE CHOPPER TRANSFORMER & CHOPPER TRANSISTOR AND THE CHOPPER CONTROL CHIP (IC 700).
DV51083 D3000
DV51083 D3000 TRIPPING C715 2,200UF, 16V.
DV51083(D3000) TRIPPING C715(2200UF16V).
DV51083H D3000
DV51083H D3000
DV51083H D3000 DEAD,LOPTR 2SD1546, LOPTX TDA8175 FIELD OUTPUT
DV51083H DARK BLANK RASTER,C1485(47UF50V),C1442(10UF16V) ON DIGIVID PCB
DV51083H DEAD ,C715(1000UF16V)
DV51083H NO REMOTE STBY,C1485(47UF50V),C1442(10UF16V) ON DIGIVID PCB
DV51083H POOR START C732,C710,C719(1000UF6V3)
DV51083H(D3000 CHAS) DEAD S/C LOPTR-LOPTX-TDA8175-1RFUSIBLE.
DV510H DEAD. R705, D708
DV5131 S3B
DV5131 S3B NO PIC/SPKR HISS, R745 0R33 VRN-V V3ABR33J,D713 BY299
DV5131 S3B STBY R744,D732,D733
DV5131H DEAD FUSE+CHOPTX(HR290N/HR9433)
DV5131H CHOPPERTX HR290N/TEA1039
DV5131H FIELD COLLAPSE TDA8170+R509(12R2W).
DV5131H S3B DEAD LOPTR (2SD1556/S2055N)+ADD COIL(FB601)INCREASE R600 BY 1K8.
DV5131H S3B EHT OK LOW 9V5 R745 (0.33R)+D713.
DV5131H S3B FIELD CRAMPING REPLACE C712 (100UF 35V).
DV5131H S3B LOW HEIGHT CHECK CAPACITOR C712 (100UF 35V)
DV5131H S3B RAGGED VERTICALS/POOR LINE DRV, C613(220UF 16V)
DV5132
DV5132 DEAD, TRIPPING R612.
DV5132 DECO-5
DV5132 CHOPTR(MJF18006/BUT11AF) + LOPTX(HR7492) +D752 PINS.
DV5132 CHOPTR(MJF18006/BUT11AF) +D752 PINS.
DV5132 STBY TDA8175+R612(2R2).
DV5132H BRIGHT THEN STBY C857+R632.
DV5132H DEAD INT R612 O/C TRIPPING
DV5132H BRIGHT WHITE RASTER CRT BASE PANEL.100PF CERAMIC CAP C857 R632
DV5132H DEAD LED FLASHES, 0R33 R751
DV5132H DEAD LED FLASHING R/G R751(0R33) GOES HI TO 0R66.
DV5132H DECO 5 LO HEIGHT, RH-IX1426BMNO CHIP IC1400 ON THE DIGITAL PCB
DV5132H DECO-5
DV5132H SLOW START, 3K3K R705 & R725 (39R).
DV5132H STBY, R612, SEE MOD
DV5135 DECO-5
DV5135H DECO-5
DV5150 S3B
DV5150 S3B FIELD TOP STREACH ,C712(100UF35V)
DV5150 STBY, MOD R612 SHOULD BE CHANGED TO 2.2OHM, LINK J13 SHOULD BE 1R2 , 0.5W RESISTOR,
DV5150H DEAD R612 O/C .
DV5150H (S3B) LOPTR S/C 2SD1554 POOR LINE DRIVE=D601/3/7 (1N4004)
DV5150H NVM CORRUPTED,MOD NEW D710(IN4937)+ADD 10NF50V IC1001/10-11,ADD 10NF50V IC1001/39/GROUND.
DV5150H S3B
DV5150H S3B POOR CONTRAST.ALL THREE BF421 TRANSISTORS ON THE CRT BASE PANEL.
DV5150H S3B LOW CONTR / COL FLASHES BF421*3 ON CRT BASE.
DV5150H S3B LOPTR 2SD1554 D601, D603 AND D607, 1N4007S.
DV5150H STBY 3R3 R613 RIGHT BEHIND PLUG H, R612
DV5150H TRIPS TO STBY +2 SECS R612(3R3) FRAME FEED.
DV5156H 4BS-B LOPTR CAUSE IC751 KA7805PI.
DV5161 4BSA
DV5161 4BSA LO/HI HEIGHT EEPROM ,R601(R68) FROM PIN 9 CHOPTX
DV5161 4BSA POOR PIC EEPROM, ,R601(R68) FROM PIN 9 CHOPTX ,LO 5V
DV5161H SERVICE MODE TEXT SUB PANEL,LINK PINS 3/6 OF PLUG TB THEN
DV5161H REMOTE MODE BUTTON , WHEN SERV SHOWS REMOVE LINK.
DV5161H ODD SYMPTOMS FRAME CHIP .
DV5161H 4BSA WARM FIELD FOLDOVER, D501 DX0511BM 25V LINE
DV5161H 4BSA BRIGHT+FOLD OVER D501 LO 26V.
DV5161H 4BSA DEAD,PSU OK, 5V REG TRANSISTOR Q1010 BC338
DV5161H 4BSA DEADISH,Q1010 5V REG(BC338).
DV5161H GOOD 128V OFF LOAD 112VN ONLOAD 6N81500V.
DV5161H NO SND/BLANK RASTER, FIELD OP CHIP(HOT)
DV5161H STBY D602 IN4936 W
DV5165 4BSB
DV5165H 4BSB LOPTR +IC751 7805 LOW 5V =WEAK LINE DRV.
DV5165H 4BSB LOPTX S/C +7805 REG.
DV5165H 4BSB LOPTX, 7805 5V REGULATOR IC751
DV5180 4BSB
DV5903 D3000
DV5903 D3000 COLOR SHIFT LUMINANCE/CHROMA DELAY ADJUST OR EEPROM IC1411
DV5903 D3000 LOPTX ARCING R628 1K R746 22K C606 0.22UF
DV5903H D3000
DV5903H D3000 CHASSIS CHROMA/LUMA SHIFT IC1441 ALSO BLOWS FIELD O/P CHIP
DV59083 D3000 STBY C715(2200UF16V)
DV59083 POOR CONTRAST R628(1K)+R746(22K)+C606 LEAKY.
DV59083 STBY INT R628(1K)+R746(22K)+C606 LEAKY.
DV59083H D3000 LOPTX ARCING.
DV5932
DV5932 BCTVA DEAD T2AH DEGAUSS POSISTOR P002CE.
DV5932H BCTVA
DV5932H BCTVA EW BENT SIDES,L604,C607(560NF250V)
DV5935 BCTVA
DV5935 BCTV-A DEAD R632 R619 39R C619 0.56UF, 250V L603.LOPTR 2SD1546,SCANCOIL PINS
DV5935 BCTVA DEAD LOPTR(2SD1546)R632 R619(39R)+C619(0U56F250V)+L603 PINS.
DV5935 BCTVA LOPTR SCAN COIL PCB PINS.
DV5935 DEAD LOPTR(2SD1546/BU2508AF)+SCANCOILS PLUG.
DV5935 DEAD POWER PULSING C643(330UF25V).
DV5935 DEAD R619/R632(39R05W)+C619(560NF250V)+C604(470NF250V) 2SD1546 L603.
DV5935 EW RASTER C607(560NF250V)+ 604(15MH).
DV5935 FIELD COLLAPSE D601 FROM LOPTX.
DV5935 FIELD FAULTS+WIDTH TDA8350Q.
DV5935 JUMPING PIC C504(0U47F50V)+L604(15MH).
DV5935 OSD ROLLS C600(100UF63V) FROM LOPTX.
DV5935 WARM NO PIC IC500.
DV5935H BCTV-A LOPTR(2SD1546)R619 39R R632 39R 0.56UF LINE SCAN-COUPLING CAP C607
DV5935H BCTV-A PRE-PROGRAMMED NVM FROM AS A SPARE PART.
DV5935H BCTVA
DV5935H BCTVA NICAN SND PROBLEMS ,NVM RAM CHIP.
DV5935H BCTVA STBY, LOPTR(2SD1546/BU2508AF)+C619(560NF250V)+R619,R632.
DV5937
DV5937 DEAD 2SD1546 LOPTR Q600. JOINT ON SCAN COIL SOCKET ,UP ON THE COILS
DV5937 DEAD LOPTR 2SD1546+SCANCOIL PINS (ON ACTUAL COILS).
DV5937 DEAD LOPTR(2SD1546)+SCANCOILS PLUG.
DV5937 DEAD POWER PULSING C643(330UF25V).
DV5937 DEAD R619/R632(39R05W)+C619(560NF250V)+C604(470NF250V) 2SD1546 L603.
DV5937 EW RASTER C607(560NF250V)+ 604(15MH).
DV5937 FIELD COLLAPSE +LOW WIDTH-R615(0R8)+D601.
DV5937 FIELD COLLAPSE CHECK DIODE D601 NEAR LOPTX.
DV5937 FIELD COLLAPSE LOW WIDTH, 0R82, 1W R615. DIODE D601 DX0127
DV5937 FIELD FAULTS+WIDTH TDA8350Q.
DV5937 JUMPING PIC C504(0U47F50V)+L604(15MH).
DV5937 LOPTR FITTED BU2508AF+68R ACROSS BE.
DV5937 OSD ROLLS C600(100UF63V) FROM LOPTX.
DV5937 SND HUM, NO SCART,R615(R82) FROM LOPTX/5.
DV5937 WARM NO PIC IC500.
DV5940H 4BSC EW RASTER SCAN COIL PCB+ Q603 +IC600 LM358P
DV5940H 4BSC LOPTR(2SD1546/BU2508AF) CAUSE SCAN COIL PCB
DV5940H 4BSC SURGE/DEAD R645 1R
DV5940H SERVICE MODE , PRESS AND HOLD THE FRONT +P AND -V KEYS WHILE SWITCHING ON MAINS
DV6603 D3000
DV6603H D3000
DV66083 D3000
DV66083H D3000
DV6632 4BSC
Sharp DV6632 Dead - when sw on from st/by led goes green for 5 secs then reverts to red processor IC800 MC44002
Sharp DV6632 INT BLOWING LINE O/P TRANSISTOR OR INT LINE COLLAPSE CHECK FOR DRY JOINTS ON SCAN PCB ON CRT
Sharp DV6632H Dead - chopper tr 2SD1546 s/c Check dry joints in psu esp on Q603 & R710 100k 2w hi res & IC700 MC446022P2 shorted
Sharp DV6632H FB lines at top (R,G,B) & shaking pic with pulling C506 100µ 65v, C623 4µ7 100v
Sharp DV6632H Ragged verts & E/W dist C623 4µ7 63v in E/W cct by Q603
Sharp DV6632H Shuts down completely aft Red then green LED briefly lit Field o/p chip TDA8170 & R645 1R 1w - check 3x100µ caps behind fop chip
Sharp DV6632H Tripping Dry joints scan coil plug & leaky LOPTr BU508AF
Sharp DW100 66FW53H Dead - usually IC705 opto is to blame - Pt. No. RH-FX0106BMZZ changed to RH-FX0110BMZZ - When the opto fails it usually takes out the line output transistor(BUH515) and the feed resistor to the line o/p stage 1R2W resistor. You need to add a 145v avalanches diode to the circuit on the print side directly beneath C720(H.T. reservoir cap) which also will need to be replaced.
Sharp Euro DS dead low, varying ht 10-50v ht pot int
Sharp Euro DS1 blue screen only supply to IC250 pin 7 missing - C257 33µ 16v s/c & D250 2v1 zener o/c 09-2004
Sharp Euro DS1 off with faint whistling lopt 2004
Sharp EURO-DS field collapse IC1402 NVM3060 can be corrupted - check location 7A should be 00 plamensl 20
Sharp EURO-DS off - no st/by C707 22µ 50v plamensl 2
Sharp S3B flickering pic BY299 D713 high fwd res
Sharp S3B low contrast with flashes BF421 tr on crt base (auto grey scale)
Sharp S3B no pic - rushing noise from spkr 9.5v supply missing - R745 0R33 o/c .
Sharp S3B Q603 lop tr 2SD1554 s/c evidence of overheating - check drive wfm - if low change D601, 603 & 607 1N4004
Sharp S3B DV5131H coloured lines on top C712 100uF 35V
Sharp SV2142ED Hi HT at 250v (115v) Crack in print by pins 1 & 4 of STRD5441 .
Sharp SV2588H Dead aft brief activity at sw on Overiding relay gave blank raster/no sound - D712 & D713 dry joints
Sharp SV2589 For PSU problems. Resolder diodes attached to PSU heatsink.
Sharp SV2589 INT RED TINT IN TOP 2/3rds OF PICTURE C636 DRY CHECK DIODES ON HEATSINK ALSO
Sharp SV2589 Red tint at top of pic & slight vert jitter C636 330µ dy joints
Sharp SV287XH Blank raster/no sound - OSD present (RF & Scart) Switching [video and audio] is performed by IC401 [M51321P] a three gang three way device. pin 15 of the IC works on a tristate level. With the IC supply being 12V: 0 - 2.5V Input from BNC; 5 - 7V Input from scart ;9 - 12V Input from tuner. Diode D419 [DX00458M] which links to the wiper of the AGC preset was leaky, limiting the voltage on pin 15 to 7V and thus preventing tuner mode selection. Replace D419 with an IN4148.
Sharp SV287XH St/by only at sw on with burning smell R518 2R2 smokes due to fop chip IC501 LA7831 faulty - caused by C521 & 522 100µ 35v
Sharp VT-2198B unable to reduce vol to min - OSD OK R1090 12k 0.25w on daughter pcb
Sharp VT3700 No sound/pic - tape stuck in R761 1R fusible o/c, Zener D757 15v s/c, L752 o/c & check ck caps in psu
Sharp VT3700H Off tune on timer recs VT supply to tuner rises when tV in st/by - IC005 33v stab RH-IZ0249CEZZJ plamensl 14-09-2004
Sharp VT3700H St/by only L752 burnt up - replace all smis in the line concerned
Sharp VT3700H Won't tune. IC1005 , R760 IC1005 Sharp RH-IX0249CEZZ R760 220ohm , Sharp VRG-RF2EB221J
DV6632H 4BSC
DV6632H 4BSC DEAD PSU IS "PULSING" REPLACE CAP C639 (1N 2KV)
DV6632H 4BSC LOPTR,C639(INF2KV)
DV6632H RAGGED VERTICALS AND EW C623 4.7UF, 63V
DV6632H RAGGED VERTS C623(4U7F63V).
DV6635 BCTVA
DV6635 DEAD LOPTR(2SD1546)+SCANCOILS PLUG.
DV6635 DEAD POWER PULSING C643(330UF25V).
DV6635 DEAD R619/R632(39R05W)+C619(560NF250V)+C604(470NF250V) 2SD1546 L603.
DV6635 EW RASTER C607(560NF250V)+L604(15MH).
DV6635 FIELD COLLAPSE D601 FAULTY FROM LOPTX.
DV6635 FIELD FAULTS+WIDTH TDA8350Q.
DV6635 JUMPING PIC C504(0U47F50V)+L604(15MH).
DV6635 LOPTR+L603 PINS.
DV6635 LOPTR+SCAN COIL PINS.
DV6635 OSD ROLLS C600(100UF63V) FROM LOPTX.
DV6635 WARM NO PIC IC500.
DV6635H BCTV-A PRE-PROGRAMMED NVM FROM AS A SPARE PART.
DV6635H BCTVA
DV6635H BCTVA DARK PIC HOT TDA8350Q.
DV6635H BCTVA NICAM SND PROBLEMS ,NVM RAM CHIP.
DV6635H BCTVA EW DISTORT /BOTTOM CRAMP,L604(15UH)+C607(U56F250V)
DV6635H DEAD C706(1NF2KV)+TDA3850.
ES DEAD LOPTR(BUH515),C608,C613.
ES DEAD Q701(2SK2605),Q702,Q703,D712(15VZD),D713,D730,C713(68NF),R716(0R22)
EURO-DS1 SERVICE MODE 1 SHORT CONTACTS 2 & 6 ON DIGI MODUL SERVICE SLOT AND
EURO-DS1 SERVICE MODE 2 THEN PRESS 'MODE' ON RC.STORE:(ROMB-SYMBOL) ON RC.
EURO-DS1 SERVICE MODE 3 EXIT:STANDBY, SWITCH OFF, SWITCH ON, REMOVE SHORT.
SP2 REDDIF TOPCRAMP C512(47UF100V)+(C511)10UF50V.
SV2189 8PLS
SV2189H LOPTX HR6223
SV2189H STUCK IN STBY CHOPPER O/P DIODE PINS (LOOK LIKE FRAME OP TRANS)
SV2189H(BK) STUCK IN STBY CHOPER O/P DIODE PINS (LOOK LIKE FRAME OP TRANS)
SV257 NC-7
SV2588 8PLS
SV2588H 8PLS
SV2588H SURGE /DEAD D712 AND D713,
SV2589 8PLS
SV2589 INT TOP RED, C636 330UF
SV2589 LACK OF HEIGHT C505(100UF35V) C507 (1000UF35V).
SV2589H BURN UP LOPTX HR6167.
SV2589H 8PLS
SV287 NC-7
SV287XH
SV287XH NO SYNC INT TEXT DECODER.
SV287XH CLIP BACK AND TWO SMALL SCREWS
SV287XH LED FLASHED ONCE,EHT SURGE,R518 ETC
SV287XH NO SOUND, SPEAKER SWITCHED TO EXTERNAL.
SV287XH STBY R518 2R2 LA7831 IC501, C521 C522 BOTH 100UF, 35V .
SV287XH STBY ,R518(2R2)+LA7831+C521+C522(100UF350V).
SV2888
SV2888 8PLS
SV2888H DEADISH LOPTX+LOPTR HR6167 2SD1546.
SV2888H7 8PLS
SV2889 8PLS
SV3320 8PLP1
SX-68A7 (25A LOW SOUND LHS (IX0214CE) TA7630
TOP CRAMP TDA8170+100UF35V .
VCB322 LOADS BUT WON'T PLAY, MODE SWITCH
VD6635 DEAD LOPTR +SCANCOIL CONNECTIONS OR L603 IN THE LINE SCAN DRIVE CIRCUIT.
VT3700 VP1 TV/VCR
VT3700 COMBI STUCK IN STANDBY CHECK L752.
VT3700 TV/VCR STBY L752 + ALL DIODE/TRANSISTORS ON THAT LINE .
VT3700H COMBI OFF TUNE RECORDINGS RH-IZ0249CEZZJ 33V REG IC005.
VT3705 VP1 TV/VCR
X0640C=LA7830
XGP10XE LCD PROJECTOR FLASHING PIC Q4011(1MX2 SM),R4053(4R7)
END OF SHARP TV REPAIR TIPS.



    
This message has been edited by mrtips on Jan 28, 2008 7:41 PM


 
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