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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: 14
Sharp51CS03H 59CS03HField fault , or general modification .Add 1N4148 from emitter Q509 to cathode D513 ( cathode to E Q509 . Pt No RH-DX0045BMZZ ) . Change R534 for 390R ( Pt No VRS-T14-09-04
Sharp51CS03H 59CS03HInt bleep from speakers or int no sound ( when hotAdd wire link from pin 22 IC301and pins 28 , 29 ( Gnd )14-09-04

Sharp51CS03H 59CS03HInt flyback lines ( may be red , greeen or blue )Flux becoming conductive on Q870 , 871 , 872 . remove transistors , clean pcb and transistors and replace .14-09-04
Sharp51CS03H 59CS03HStuck in StBy .If no 300v across C708 check for continuity from D704 cathode to L703 . PCB sometimes damaged in transit .14-09-04
Sharp59CS03HAudio noise - intQ305/30614-09-04
Sharp59CS03HDeadTDA8375A IF/video proc/tbase chip faulty IC201 (low res between pin 56 & Chassis)14-09-04
Sharp59CS03HDead & whistlingQ306 2SA1797Q sm audio amp s/c - also check Q306, D301/2, D305 1N4933 & check for dry joints back of scan coil pcb14-09-04
Sharp59CS03HField lin creeps up at bottomQ707 C33840 = BC338-4014-09-04
Sharp59CS03HNo / int field collapseResolder L501 ( joints on body )14-09-04
Sharp59CS03HNo BlueB drive was et to zero in service menu (vol down/chan up whilst sw on)14-09-04
SHARP59CS03HNO SOUNDCHECK R643 FOR O/C 5.6 OHM14-09-04
Sharp59CS03HNo sound - headphone ok22R 0.5w safety res on 40v rail from loptx o/c14-09-04
Sharp59CS03HNo Txt or OSDHad fallen to zero in user menu - possibly by flash over? - sorry, no instructs here - try user 14-09-04
Sharp59CS03H CSDead - psu dead (give up now!)Chopper MOSFET s/c, R706, D718, 2 x BC338 got psu working on dummy load - LOP Tr s/c, D601 1N4935 in 13v supply s/c, now have pin cush dist - D619/621 s/c14-09-04
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