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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
SHARP66CS03HFRAME BOUNCE WITH ROLL ON TEXTREPLACE C604 330MFD10V14-09-04
Sharp66CS03HINTERMITTANT BLOWING OF Q601/Q701REPLACE C604, R638 AND R64114-09-04

Sharp66CS03HLine o/p tr BUH515 int blows at sw onC604 330µ 10v14-09-04
Sharp66CS03HOut of focus col blobs in raster & no sound45v to fop & audio stages missing. R643 5R6 o/c & D623 10v zener cooked but R643 overheats when sw on. Remove Q509 (fop feed) ; no -13v at Q508 emitter as R631 o/c; ok when former replaced 14-09-04
Sharp66CS03HSLOW START FROM COLDREPLACE C714 1000MFD10V14-09-04
Sharp66CS03HSt/by onlyRipple on 5v supply caused by C714 1000µ 10v low cap14-09-04
Sharp66CS05Field top cramp when coldC517 22µ14-09-04
Sharp66CS05Long time to come onC714 1000µ14-09-04
Sharp66CS05No sound/pic but dull raster with purity type errorsR631 (not a resistor but a fuse)- D623 10v zener sm & R643 5R614-09-04
Sharp66CSD8HService mode enteringPRESS CH+ AND VOL- AND SWITCH ON14-09-04
Sharp66DS-03H CA10Dead - psu blown up due to faulty opto couplerReplace Q702, 703 etc & opto - careful not to overheat it when soldering new one in or hi HT persists See Sharp Tech bulletin CTV2001010114-09-04
Sharp66DS03HField collapse then deadC613 dry joints14-09-04
Sharp66ES03Dead still, after psu & LOP stage rebuildC607 330µ in psu sec & check other caps in the region14-09-04
Sharp66ES03Field collapseF601,F602,Q501,Q502 14-09-04
Sharp66ES03HService mode enteringVol down & Channel up at switch on - go to st/by to store14-09-04
Sharp66FW-53H DA100Dead - LOPTr s/c, C720 100µ 200v split openopto-coupler (IC705) and the two damaged components above (Q601 & C720). Fit avalanche diode across C720 to prevent future damage (cathode to positive). A new TEA5101A (IC1801) was also fitted on the CRT panel as a precaution14-09-04
Sharp66FW-53H DA100Stuck in standby ,only orange LEDReplace opto coupler IC705, Q601 (BUH 515), Q5408 / Q5407 and R5425 (470ohm) on tube base. C720 (200V/100uf.) Add avalanche diode RH-EX0875BMZZ across C72014-09-04
Sharp66FW-53H DA50WLOPTr BUH515 fails at sw onCheck for dry joints in line driver & o/p stages & replace C607 33025v in driver14-09-04
Sharp66FW53HDead with bangC720 blown, R765 & 766 100R sm o/c, R623 1R o/c & Q601 BUH515 s/c, caused by opto IC501 MOC810614-09-04
Sharp66FW53HLOPTr repeated failureLOPTx faulty14-09-04
Sharp66FW53HRotated pic (not horizontal)Replaced the following in rotation control cct on crt base - IC1601 VHIBA4558F/-1 (BA4558 ic), Q1603 VS2SC2412KQ-1 (2SC2412 trans), Q1604 VS2SA1037KQ-1 (2SA1037 trans)14-09-04
Sharp66FW53HSt/by onlyR714 560k start up res - also check R713 560k14-09-04

Sharp66FW53HSt/by onlyD735 (RH-EX0875BMZZ), IC705 CNY17F-2 (RH FX0110BMZZ, C720 100µ 200v - use heat sparingly when fitting new opto14-09-04
Sharp66FW53H DA100Constant tripBypassing prot (s/c pin 15 IC702 to chassis) brought pic on with limited functions - sm NVROM chip faulty & adj geometry settings (maunual reqd)14-09-04
Sharp66FW53H DA100DeadIC 705 RH-FX0110BMZZ, CNY17F-2; C720 RC -EZ0258CEZZ, 100UF 200V; D735 RH-EX0875BMZZ DIODE AVALANCHE; D712 RH EX0419BMZZ, DIODE15 ZENER; Q701 RH-TX0198BMZZ S5410N80A ; Q702 RH-TX0182BMZZ 2PD602AR[s.m.]; Q703 RH-TX0151BMZZ 2SD2391Q [s.m.]14-09-04
Sharp66FW53H DA50WContrast level reduces aft 20 minsIC1801 TEA5101B RGB chip on crt base14-09-04
Sharp66FW53H DA50WSound distIC1300 sm chip on plug in pcb overheats & contaminates board - exchange boards reasonable price pt no DUNTK7285BMW114-09-04
Sharp66FW54HInt red picO/P IC on crt base faulty14-09-04
Sharp66GF63HBright picture F/B lines. 2 volts on pin 2 of ic1801Q912 O/C. Replace q912, d1805 & c181514-09-04
Sharp66GF63HBright raster with fback linespin 2 IC1801 on CRT only 2V caused by Q912 o/c BC337-40 (Sharp special - normal one overheats) Also check D1805 & C1815 both sm on crt base14-09-04
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