Dicas Reparação SONY




Modelo - Chassis


Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKV2647R
SNOW PICTURE, RESOLDER R053 Set displayed snow on all channels. I found R053 on MF boardimproperly soldered.
SonyKV2647R
SET WOULD NOT TURN ON/OFF BY REMOTE, IC-101 Set would not turn on/off.
SonyKV2645RS
COLOR DISTORTION, REPLACED R751 Bleeding color (red). Found R751/470kohm resistor changedvalue.
SonyKV2643R
RASTER PULSATING, REPLACED R609 Picture and raster pulsating. The 135V line exhibited samepulsation.
SonyKV2145R
NO PICTURE, FBT Set kept shorting out the horizontal output transistor.
SonyKV2101
PICTURE DISTORTION Set had light vertical bands in picture. They started on theleft and became less bright as you moved to the right. Horizontal outputwaveform was affected as well.
SonyKV1946R
PICTURE DISTORTION, REPLACED C524 Set would go into vertical bounce after warm-up.
SonyKV1945RS
SNOW PICTURE, REPLACED PRESCALER Snow on all channels. No output from prescaler.
SonyKV1945R
SOUND AND PICTURE DISTORTION, REPLACED IC005 Volume and picture levels go down. One could adjust volumeand picture levels in UP mode, but a few seconds later, the levels wouldgo down to minimum.
SonyKV1945R
INTERMITTENT ON/OFF, LEAKY D026 Intermittent on/off. Last channel memory is off. When turnmaster switch on, TV comes on intermittently. IC006 Pin 11 is low (2.4V)should be 5.1V. D026 zener didoe was leaky.
SonyKV1913
VCR PB PICTURE DISTORTION Viewing TV normally, off channel no problem set looks good,however, when VCR played through set, top of picture would curve to rightlike flag waving. VHS system is what customer has and complained on.However, distributor put Betamax through unit and sam
SonyKV1221R
NO ON/OFF FUNCTION, REPLACED RL001 Unit would not shut down manually or on remote. Whenattempting to turn off set with manual switch or remote, the sound wouldmute, but the raster would remain. Tapped on the case of relay RL001.Power immediately went off. Found RL001 was hanging up due
SonyKV1216
PICTURE PULLING HORIZONTALLY, REPLACED IC201 Picture pulling horizontally on some channels. Problemtraced to output of sync separator, Q301, where horizontal sync amplitudewas lower than normal. Observing composite video at Pin 14 of IC201showed horizontal sync pulse to be just slightly higher th
SonyKP7220
PICTURE DISTORTION Set had about 8 inch overscan. Found set-up cord was18 inches too long.
SonyKP7220
INSUFFICIENT VERT HEIGHT, REPLACED C5521 Insufficient vertical height on all three CRTs: about 3inches short top and bottom of the screen. Found vertical sawtooth atbase of Q5510 (on DA board) reading 2.4Vpp, should have read 3Vpp.


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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