Dicas Reparação




Modelo - Chassis


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Resultados 81349
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyWMF2078
NO SOUND - RESOLDER GROUND LEAD ON HEADPHONE JACK No sound.
SonyKV8AD10
NO SOUND, REPLACED EARPHONE JACK No sound from speaker or HP jack.
SonyKV1957R
NO COLOR, REPLACED IC-301, REPLACE IC-301 No color and no clock. IC holding X-301 low.
SonySVS10H
BATTERY WILL NOT CHARGE Battery will not charge.
SonyFDL380
UNIT APPEARS TO BE DEAD, REPLACED TUBE Unit has no picture or sound.
SonySPPA20
NO RX ON HANDSET Talk was pressed and Base In use light will light but handsetTalk light flashes then drops off.
SonyITA555
DROPPING LINE WHEN OTHER PHONES ARE PICKED UP Dropping line when other phones are picked up. -HQ COMMENTS: The same problem occured with this model's predecessors,IT-A205/A305/A505. However changes were made in the IT-A555 circuitry tocounteract the problem. They are the same changes documented in
SonySLV595HF
NO VIDEO. AUDIO IS FINE There was no video on Playback, Tuner or E to E. The audiowas fine.
SonySLV585HF
NO REWIND SCAN Does not Review Scan.
SonySPP160
WON'T TONE DIAL Wouldn't tone dial.
SonyCFD757
CD NOT PLAYING CD would not play. I noticed that optic was focusing eventhough optic was at extreme outer edge of disc. Checked the limit switchand found it was shorted even though optic wasn't closing the switch.Traced back to connector board CN-701 and found factor
SonyCDP291
NOISE AND NO AUDIO No audio. Noticed +.8VDC on audio out line. Found that -5Vwas not present. Also measured +7V across L-292.
SonyEVS550
NOISE (WAVYLINES IN PICTURE) Customer complained of noise in the picture and poorpicture.
SonySLV393
INTERMITTENT BLUE SCREEN Intermittent blue screen.
SonyKV27TS35
WHEN TURNED OFF PIX, SOUND GO OUT BUT B+ REMAINS, Q-613 Al Sarhad reports from retirement: At turn off eitherby remote or manually picture and sound goes out but High Voltage and B+line was active. You could get a display on the scren using the remote.


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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