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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: 313
AmstradTVR1DARK PICR1640 220K14-09-04
AmstradTVR1Dead fuse Ok - relay clicks.C1509 ( 3 , 300pf 1KV ) , R1502 ( 27ohm5w ) o/c , C1507 ( 1uf50v )14-09-04

AmstradTVR1dead with burning smellC1509 3,300pf burnt14-09-04
AmstradTVR1Dead.R1410 ( 4.7ohm 2w ) left of LOPTX o/c.14-09-04
AmstradTVR1Goes dead aft short timeD1507 , C1511 100mfd , 160v14-09-04
AmstradTVR1Goes off with whine if sw on from warmD1507 & C1511 100µ 160v14-09-04
AmstradTVR1Long time to come onC1507 0µ2214-09-04
AmstradTVR1No frame.D1404 ( PR156 ) , R1415 ( 2.2R )14-09-04
AmstradTVR1No Tv function.C1507 ( 0.22uf 50V ) , D1507 ( B7299 ) s/c , R1503/4 ( 270k ) high or o/c.14-09-04
AmstradTVR1Pic pulses small when brill advancedHT in sympathy with pic size IC1501 STK734814-09-04
AmstradTVR1Startup - slow.C1507 ( .22uf ) in PSU , may check ok.14-09-04
AmstradTVR1Takes up to 15 minutes to start.R1504 ( 270k ) gone high.14-09-04
AmstradTVR1Uncontrollable sound.IC AN5265.14-09-04
BekoNR17125TBlows LOPTr after a few daysCheck C140 22nF for o/c - upgrade to 1000vw14-09-04
ITT80R 110°Int no startup.C703 & C713 ( 10u f , 50v ) little blue ones by BU heat sink.14-09-04
ITT80R 110°Standby - light on - no startup.D721/3 o/c , R716 high , check C703 little ( 10uf , 50v ) , D732/3.14-09-04
ITTChassis 80R110Set switches to Stby after running for a while.Change D761 13V zener.Seems to be OK with a Vom.14-09-04
ITTCT3425 80R 110°Standby - intermittent going to standby.Power Tx on main PCB by loptx.14-09-04
JMBC2099TX Matsui TVR180St/by onlysyscon/timer/servo IC1006 OEC0078C using the sub-panel to get it out of S/by and then corrected incorrect Hex values. (Or get preprog 24C08 from Grandata)14-09-04
JVCAV28WFR1EK JKNarrow raster then turns offC521 Flyback tunning cap o/c Can also cause failure of Q543 D521 Q521 Q545 Q544 14-09-04
JVCAV28WFR1EK JKWidth reduced & int tripC521 3.5nF 1.5kv line tuning cap - JVC replacement better quality14-09-04
Matsui14R1Int stays in st/byTR800 BC847 sm between jungle chip & Tr301 leaky/o/c14-09-04

Matsui14R1No sound or pictureCheck D30114-09-04
Matsui14R1One of these small portables produced a green screReplacing TR9Ol restored the picture.14-09-04
Matsui14R1 G1000Bright white raster - sound okR315 100R fusible o/c14-09-04
Matsui14R1 G1000Colour peculiarNo supply to CCD delay line chip IC801 - R831 47R o/c & C834 10nF s/c14-09-04
Matsui14R1 G1000Dead - no Led, but PSU seems okNo start up signal from micro;Tr540 BC847 leaky14-09-04
Matsui14R1 G1000Dead or pulses few times 1st with 300v across C104C106 100µ low in value or IC100 s/c14-09-04
Matsui14R1 G1000Dead - psu okR314 6k8 o/c - removes supply to line driver14-09-04
Matsui14R1 G1000Dead - s/c in LOP stageD301 s/c14-09-04
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