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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

MakeModelProblemSolutionAddedDate
 
Found: 917
SonyBE2ALOW CONTRASTIC302 PIN 19 LOW SHOULD BE BETWEEN 1-4v CHECK R817 R818 R816 ( 150K )plamensl14-09-2004
SonyBE2ALow contrastR816 150k & R818 & sm tr Q005 2SA1037K or 2SA1162-Gplamensl14-09-2004
SonyBE2ALOW CONTRAST , ONLY GOES UP SO FAR THEN LEVELSR816 PIN 4 LOPT.plamensl14-09-2004
SonyBE2ALum & sound fade away aft ?hr47k sm res hi res print side base Q005 near IC302plamensl14-09-2004
SonyBE2ANo blue.IC302 ( TDA3505 )plamensl14-09-2004
SonyBE2ANo pic - field collapse - sound okR819 0R47 1/4w safety re o/cplamensl14-09-2004
SonyBE2ANO PIC-LOSS OF SYNCC14 ( 4.7uF 50V ) , P501 ( N15CCT )plamensl14-09-2004
SonyBE2ANo Picture ( VIDEO MUTED )C329 ( 22uF TAN ) s/c.plamensl14-09-2004
SonyBE2ANo start upR602 270k 1/2w (under chopper tfmr) o/cplamensl14-09-2004
SonyBE2APic goes to bright white raster intS/castle pulse pin 10 IC302 dist - D504 by lopt leakyplamensl14-09-2004
SonyBE2A KVM1420UPic & sound fades aft 15 minsAdj vol increases contrast - C012 22µ leaked causing damage to Q005 DTA143TK & R045 47k smplamensl14-09-2004
SonyBE2A KVM1420USnowy pic with noisy soundSAWF SWF101plamensl14-09-2004
SonyBE2A KVM2101UE/W slightly bowed & excess widthC806 47nF 250v in E/W diode mod cctplamensl14-09-2004
SonyBE2A KVM2140picture faded over several hours & the sound level reduced too.When changing the volume, also adjust brightness.usually caused by Q005 (2SA1162-G or 2SA 1037K). This device reads high resistance when tested & needs checking on the ohms time 100 scale of the AVO. In my set this SM transistor was OK. The fault at length was traced to C012 22mfd 50v which was leaking through the PC & had damaged SM resistor R045 47K along with a piece of print running it. All SM parts in this area had to be removed & the PCB cleaned up & bridged where the acid had damaged the print.plamensl14-09-2004
SonyBE2A KVM2140Sound drops & pic dims aft an hourQ005 DTA143TK sm on print side of pcb coll dropped to 2.5v (11.7v) - Tr faultyplamensl14-09-2004
SonyBE2A KVM2140UBPic & sound fade off aft prolonged useCheck / replace light blue caps C821 100µ 16v & C823 22µ 50v also C021 22µ 50v near jungle chip also check sm res below it for corrosionplamensl14-09-2004
SonyBE2A KVM2141UFading picC021 22µ 50v ( read ok out of cct)plamensl14-09-2004
SonyBE2A KVM2151Int shut down with 300v present on chopper chipChange STR power chipplamensl14-09-2004
SonyBE2A KVM2151UArcing LOPTx effect on pic with accompanying soundsC606 in psu dry jointplamensl14-09-2004
SonyBE2A KVM2151UDead with psu blow upIC601 STR54041 chopper chip (use genuine), Q601 BC637-16, R601 3R3 10w, R611 120k & F601plamensl14-09-2004
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