Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
---|---|---|---|---|---|
Sony | BE2A KVM2140UB | Pic & sound fade off aft prolonged use | Check / replace light blue caps C821 100µ 16v & C823 22µ 50v also C021 22µ 50v near jungle chip also check sm res below it for corrosion | ||
Sony | BE2A KVM2140 | Sound drops & pic dims aft an hour | Q005 DTA143TK sm on print side of pcb coll dropped to 2.5v (11.7v) - Tr faulty | ||
Sony | BE2A KVM2140 | picture 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. | ||
Sony | BE-2A KVM2101U | E-W error, width control not working properly | C806 47nF 250V (113618711) | ||
Sony | BE2A KVM2101U | E/W slightly bowed & excess width | C806 47nF 250v in E/W diode mod cct | ||
Sony | BE2A KVM1420U | Pic & sound fades aft 15 mins | Adj vol increases contrast - C012 22µ leaked causing damage to Q005 DTA143TK & R045 47k sm | ||
Sony | BE2A KVM1420U | Snowy pic with noisy sound | SAWF SWF101 | ||
Sony | BE-2A KVM1411U | tuning drift | resolder L501, also resolder R818 back of PCB near LOPTx | ||
Sony | BE-2A KVM1400U | no power, LED flashes | PS801 N15 o/c in 120V supply to LOPTx | ||
Sony | BE-2A KVM1400U | low sound/no sound | C204 470uF 25V pin 2 of IC201, also resolder IC201 | ||
Sony | BE-2A | flashing, loss of col | dry joints lop tr heatsink - interferes with other tvs | ||
Sony | BE2A | Pic goes to bright white raster int | S/castle pulse pin 10 IC302 dist - D504 by lopt leaky | ||
Sony | BE2A | No start up | R602 270k 1/2w (under chopper tfmr) o/c | ||
Sony | BE2A | No Picture ( VIDEO MUTED ) | C329 ( 22uF TAN ) s/c. | ||
Sony | BE2A | NO PIC-LOSS OF SYNC | C14 ( 4.7uF 50V ) , P501 ( N15CCT ) |