Dicas Reparação SONY




Modelo - Chassis


Pesquisa: SONY Enviar Dica Resolvida
Resultados 18938
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(Chassis)
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Sony KV28WS2U
No sound, speakers pop out if volume is raised from zero. Audio output from Dolby A1 board at +5v dc.Lightning damage to this set and connected VCR. Centre/surround amplifier IC shorted blowing IC protector to its negative rail. Both amplifier ICs replaced as a precaution. No damage to Dolby A1 board
Sony KV-25M80 BG-2
Dead5V Supply Transformer Short
Sony KVS3432U AE2
Front led flashing 13 times, HT at first came on at 139V then went to 75V going off etc shuting back down in protection modeFound R854 open circuit on -15 volt line off line output transformer
Sony KV2184
Main fuse blastedReplace the STR50115, also replace the mains electrolytic capacitor
Sony FE-1
No teltext just P100This problem was caused by Q405 2SC2412K being s/c
Sony FE-1
No power although relay operates main p.s.u inoperativeCheck IC606 STRF6654 for failure, also check resistors R659 0.33ohms,3w, R660 0.39ohms,3w, fusible resistor R603 0.1ohms,0.5w and capacitor C625 100uF,25v
Sony KX27PSI
Almost totally dead. No video or audio whatsoever. Only the clicking sound of two power relays when the set is turned on, and conversely at power down. The green/red lights on the front panel do appear. Repeated failure every 2-3 years. Why ?An insight into what TV engineers did, after speaking to Sony UK: a 0.47K resistor replaces L656 in line to Q651 B. b 0.33 ohm resistor added between L650 and Q651 E. A resistor also replaces L657. Still lasted only 2 years. Any better ideas ?
Sony KVA2942U
LED A flashes once, LED B flashes 13 times.Bad solder joints on field IC1501 on back edge of main PCB
Sony FE-1
After about 30 minutes the set goes to standby, the LED flashes and TV starts again. After 1 Minute the TV Displays : Antenna connection failed!Change IC101 of IF on A-Board. Order Nr. 875946647
Sony KV-X2183E BE3B
Not working, Stand-by indicator led flashing 6 times, Power supply okThe tuner has loose connections, especially the ground points and the two SMD Ic´s
Sony KV27EXR25
No power, no raster, relay comes onFound horizontal trans short
Sony AE2
Sound low & distorted when hotCheck -22v & +22v on plug PL505, if either incorrect check R627 27~ goes high in value
Sony KV28WS2U
OSD volume bar present continuously. No functions availableFront panel tactile switches leaky. Replace same
Sony KV2032
Keeps changing channelCheck voltage on D12 if below 4.8V then change
Sony KV-20VM20 SCC-H16B-A
Would not eject the tapeReplace Elevator activator rack Broken REF# A34 OEM# 9-908-164-01. - UL# 146T - Set MFG. by Goldstar Similar To: Zenith TVR1920 & KV-13VM20


Assistência TécnicaAs dicas apresentadas destinam-se a técnicos de eletrónica, a tentativa de reparação ou assistência sem ter conhecimentos de eletricidade e eletrónica, podem provocar danos mais graves aos equipamentos e, devido a tensões muito elevadas em alguns circuitos, graves danos fisicos que podem constituir um risco em determinadas reparações.

Não arrisque reparar equipamentos com tensões elevadas se não tiver conhecimentos técnicos para o fazer em segurança.

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