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Repair tips

Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair

MakeModelProblemSolutionDate
Found: 711
SharpDeco 5Dead - red/green flashing ledR751 0R33 safety res had risen to 0R5914-09-04
SharpDeco 5Int won't come out of st/by - led flashes R&G5v line ok - others pulse, R793 0R33 1w risen to 0R6 - by chopper tfmr14-09-04

SharpDECO 5Line coll then deadR610 68R 1/2W FUSIBLE O/C;Q602 BU508AF LOPTr S/C; DRY JOINTS C604 was the cause14-09-04
SharpDECO 5Screwdriver settingsBriefly connect pins 2 & 6 of connector CN1 on middle pcb ( Pin 1 farthest away) Using chan up/down & Vol up/down buttons to locate & adj options, save each setting with on/off button. Exit serv mode by briefly connecting pin 2 & 6 CN1 again.14-09-04
SharpDeco4MJF18004C chopper tr & TEA1039 chopper chip s/c between pins 9 & chassisR706 & 710 3R3 safety res o/c - after replacements fitted blew again. T700 chopper tfmr internal short14-09-04
SharpDeco4stuck in st/by; 5v supply faultR751 0R33 risen to 1R14-09-04
SharpDECO4 DV5105HTrips at sw on then comes back on but trips again on chan changeR716 0R22 in psu gone slightly hi14-09-04
SharpDeco5Line collapse then deaddry joints C604, replace R610 68R 1/2w fusible & Q602 loptr14-09-04
SharpDS/ES chassisDead - LOPTr BUH515 s/cCheck for dry joints C608/613 - also check Q701 2SK2605, Q702, Q703 BC338, D712 15v zener, D713, D730 1N4148, C713 68nF & R716 0R47 or 0R22 & check rects on sec for s/c14-09-04
SharpDV1512 Euro DS1CHOPPER SCORDER 27510PK MOD KIT FROM WVE14-09-04
SharpDV1512 Euro DS1Dead - chopper tr s/cFit official Sharp repair kit 27510PK - WVE14-09-04
SharpDV1600Blank white small rasterLOPTx - expensive14-09-04
SharpDV1600Int trip esp on bright picDry joints 2SD869 LOPTr14-09-04
SharpDV1600Small white rasterLopt ( expensive !! )14-09-04
SharpDV1600St/by onlyC715 10µ 100v; C720 1µ 100v14-09-04
SharpDV1600St/by onlyDry joints chopper tfmr; C710 33µ 16v bi-polar14-09-04
SharpDV1600St/by onlyC715 10µ 100v in psu14-09-04
SharpDV1600Standby - mode.DJ at LOP transistor fixing screw and print.14-09-04
SharpDV1620st/by only - no line driveNo supply to line osc chip - D607 dry joints - feeds 12v reg14-09-04
SharpDV3705HNO OPERATIONNVM CORUPT , REPLACE D710 WITH NEW TYPE DIODE , D710 - 1N4937 Sharp- RHDX0507BMZZ , CAPACITOR 10nF 50v - VCKZPA1HF103Z14-09-04
SharpDV3730HCRT CHANGE / COIL COMPATABILITYEARLY CRT VB34JLN61X/*S EARLY COIL RCILH0037PEZZ LATE CRT VB370BVBK1U-3 LATE COIL RCILH0057PEZZ14-09-04
SharpDV3750Dead - burnt out safety res R728Replaced R728 3k3 ?w caused by D707 - pin 7 loptx 14-09-04

SharpDV3750HBlank raster, virtually no pic/sound at sw on - intAft chan change no sound/pic, caused by corrupt NVM IC1002 24C02; replace with empty memchip & set up customer & service mode settings - usually caused by noisy 5v line; - replace D710 by 1N4937 - increase the value of C7145 to 2200uF/16V - add a 10nF/50V ceramic capacitor from pin 10 of IC1001 to ground - add a 10nF/50V ceramic capacitor from pin 39 of IC1001 and ground - fit a 8,2V zener diode between pins 4 and 5 of IC1002 (anode to pin 4) - fit a 8,2V zener diode between pins 3 and 6 of IC1002 (anode to pin 3)14-09-04
SharpDV3750HCHANGING SDA20561 - ( A528 ) TO SDA20561- ( A535 )CHANGE BOTH IC 1001 AND IC1OO2 IC1001 Sharp RH-IX1492BMN2 IC1002 Sharp CH-IX1463CJH614-09-04
SharpDV3750HService mode enteringconnect a jumper wire between terminals 2 and 6 of the service slot on the video PWB - press the MODE button on remote - SERV will appear on the screen - remove the jumper wire - use channel up/down to move between the options - use volume control buttons to change the data - use the standby button on remote to store settings - turn the set OFF with mains to exit service mode14-09-04
SharpDV3751No AFCCheck R214 for damage - by tuner14-09-04
SharpDV3751No AFC - poor tuningR214 sometimes gets damaged if set dropped or if rear cover not put on correctly14-09-04
SharpDV3751NO TEXT - AND NO CLOCK FUNCTIONCHECK LOCATION 21 IN NVM ( LINK PINS 2-6 EDGE CONNECTOR PRESS MODE , REMOVE LINK. )14-09-04
SharpDV3751 DV5131HCHANGING MICROWHEN CHANGING MICRO REPLACE NVM ALSO IC1001 SDA20561- ( A535 ) RH-IX1492BMN2 IC1002 NVM Sharp CH-IX1463CJH714-09-04
SharpDV3751HBLANK VIDEO FIELD LINES ACROSSREPLACE MICRO AND MEMORY Sharp CHIX1463CJ7 Sharp RHIX1492BMN214-09-04
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