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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: 40
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
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
MatsuiTVR141Comes on for 2-3 secs then reverts to st/byMode sw14-09-04
MatsuiTVR141Dead - no LEDs - PSU workingC523 16V 100uF (next to the heatsink IC502, it is the tallest heatsink on the PCB).14-09-04
MatsuiTVR151Missing blue, patchy picture, Horizontal blue lines down LHSC630 on VCR PCB broken away from pad (C629 & C628) correspond to green and red14-09-04
MatsuiTVR161Blows 4A fuse at sw onQ500 fet chopper (2SK2056) s/c, R501 (2R2 7W) o/c, C515 (1mfd, 160v) and C504 (47mfd) high esr. Print to pin 3 TDA4605-3 chopper control Ic o/c14-09-04
MatsuiTVR161chopper FET s/c Q500 2SK2056check R504 330k; R506 820k metal film 350v also check 2R2 7w limiter14-09-04
MatsuiTVR161DeadR504 390k o/c (pin 2 of TDA4605-3) R505 330K Blows 2SK2056 2.2Ohmn 7w/w to bridge rects Changed all inc ic and C515 1uF 160v C504 47uF 25v 14-09-04
MatsuiTVR161DeadR506 820k in psu o/c, Q500 2SK2056 FET s/c, & check C515 1µ 160v, C504 47µ 25v & R504 330k14-09-04
MatsuiTVR161Dead - R508 in chopper overheats & destroys FETReplace R508 47k (not 4k7) & Q500 FET 2SK205614-09-04

MatsuiTVR161No pic with fb linesHT to RGB o/p only 50v; C431 22µ 250v14-09-04
MatsuiTVR161Slow start up before going deadreplaced q500 (2sk2056) + r508 47k res+ic501 tda4605-3 + the cause of the problem c504 47mfd (high ESR)14-09-04
MatsuiTVR162Deadstart up res R506 560k o/c14-09-04
MatsuiTVR162Sound level low on pbackCheck elects in audio stage14-09-04
MatsuiTVR180Dark picC819 2200pf 2kv leaky on crt base14-09-04
MatsuiTVR180Dead - PSU blownSTRF6707, R542, R543, R503, 22u, 100u & opto coupler14-09-04
MatsuiTVR180Dead with front blown off STRF6707STRF6707 R542 0R39 1W, R543 680R, R503 4k7 14-09-04
MatsuiTVR180Dead with psu pulsingLOPTr 2SD2599 s/c - replaced with BU508DFI - no reason found for its demise14-09-04
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