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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: 19



Matsui25M1DeadD354 off sec of tfmr dry joints & dry joints both regs14-09-2004
Matsui25M1 Mk111Dead - no lights with psu tickingSt/by tfmr Pt no PTO146a from CHS14-09-2004
Matsui25M1 Mk2St/by only - light off when chan button pressedNo B+ volts - R624 120k in start up o/c, also check R620 120k14-09-2004
Matsui25M1 MkIIIn St/by - led flashes slowly when brought out of st/byChopper tr Q613 2SC4429 s/c - blew when using meter to check it for s/c! - also blew meter; Q612 2SC3807 s/c & R620/621 120k (original cause) - one of them o/c. R602 3R9 7w o/c & o/c mains fuse14-09-2004
Matsui25M1 MkIISt/by onlyR620 / 624 120k o/c14-09-2004
Matsui25M1 Sanyo EB2No memoryeeprom IC. ST24C02B (IC790) To initialise new chip, press and hold function button on tv, while pressing recall on remote handset. this gives message on screen Item-1 Set-0 Confirm Set number of all items is "0" by pressing the function button. If it is not "0" change to "0" by the level(+/-) button. (Changing the set number, automatically memorised.) Press the Recall buton to return to the normal TV mode. Then tune in and store channels as usual14-09-2004
MitsubishiCT21M1BM CT25M1POPPING NOISE IN STBY WORKS OK WHEN ONQ951 Q952 OR DRYS ON CONNECTOR PB , R954 , R974 , R98514-09-2004
MitsubishiCT25M1Juddering rasterC906 47 25v chopper dr cap14-09-2004
MitsubishiCT25M1STXBLANK/NO VIDEOQ702 JC50114-09-2004
MitsubishiCT25M1TXDead - psu workingcrack in print coll of lop tr - also change C906 47, C905 47014-09-2004
MitsubishiCT25M1TXField roll int & bent vertsC906 47 25v in psu14-09-2004
MitsubishiCT25M1TXHORIZONTAL LINES ON SCREEN AND WHISTLINGC956 2200uF 16v14-09-2004
MitsubishiCT25M1TXINT BLANK SCREEN+NO SOUNDIC2A2 Q2A2 AUDIO ONLY Q10414-09-2004
MitsubishiCT25M1TXINT LOSS OF S/V , CHECK FOR VIDEO IP. AND OP. AT AVIF THERES AN OP. WITH SCART BUT NOT RF , SUSPECT Q2A2 JC501-QR PtNo 266P064010 IF NO PIC BUT SOUND OK CHANGE Q104 JC501. IF U14-09-2004
MitsubishiCT25M1TXLOW CONTRAST AND FLYBACK LINESCheck for 2.9V at pin 7 IC251 if low Q704 u/s14-09-2004
MitsubishiCT25M1TXMOTOR BOATING IN STANDBYREPLACE Q951 IN POWER SUPPLY14-09-2004
MitsubishiCT25M1TXMotorboating type hum from spkrs in st/byQ951 leaky in PSU sec14-09-2004
MitsubishiCT25M1TXNo pic - sound okLoss of 5v to txt dec. Z95 cct prot 630mA in psu o/c14-09-2004
MitsubishiCT25M1TXWEAK VIDEO NO SYNCQ104 JC501 LEAKY-VIDEO AMP14-09-2004
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