Dicas Reparação SONY




Modelo - Chassis


Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKV1711
COLOR FLICKER Pulsating color.
SonyKV1547R
INTERMITTENT SOUND Sound would cut out intermittently on VHF. Unable to receiveUHF above channel 34. Found CATV/Normal switch defective. This is thesecond unit I have found with this problem.
SonyKV1500
NO HORIZONTAL FREQUENCY LOCK Horizontal frequency did not lock.
SonyKV1357R
PICTURE DISTORTION WHEN OPERATING ON/OFF BUTTON, D-001 When operating on/off button, picture would either go intosnow or have severe 120 cycle hum in it. Set could not be turned off.
SonyKPR4600B
NO PICTURE, REPLACED Q-956 Unit had no picture. Sound would vary up and down. Found LOTtransistor shorted.
SonyKP5040
VERTICAL NOISE BAR, CONNECTION CHANGE ON R3383 AND R3384 Unit had dark vertical line in the center of the screen, onlow channels. Disconnected resistors R3383 and R3384 where they jointogether and connected them to Pin 2 of BA-9 connector.
SonyKP4000
POOR ON NO SOUND This unit powered up but there was poor or no sound/picture.We found R107 on the Q board to be defective.
SonyFD30A
POOR FOCUS, REPLACED CRT This unit had poor focus. The tube had internal shortputting 500 volts on the focus pin.
SonyKX1901
INTERMITTENT SHUT DOWN This unit intermittently shut down. We found the lead fromthe flyback to the HVR control to have a poor connection where the wireconnects to the metal retaining cap. The resulting arcing caused theunit to shut down. It was not possible to properly rep
SonyKX1901
WEAK SOUND ON LEFT CHANNEL Left channel output is lower than right channel.
SonyKV4100
MECHANICAL DAMAGE Flywheel gear broken. At least 25 units are due intoHollywood FSC with same complaint. No tape deck operation. So far 5units repaired. Four out of five had defective gear. Gear must bestrengthened.
SonyKV2670R
NO RASTER, R-526 OPEN, C-527 OPEN AND Q-504 LEAKY This unit had no 1000 volt G2 screen voltage. R526 was open.C527 was blown in half. D508 was changed for safety. Q504 was leaky.
SonyKV2649RX
POOR FOCUS ON THE SCREEN, REPLACE T861 Set had poor focus on right side of screen (about 4 inches).By tapping T-861, the focus would get worse or better.
SonyKV2649RX
NO FUNCTION, REPLACED D021 Set cannot be turned off, except by the master switch.Channel up/down, volume up/down, picture, color etc. do not work. FoundD021 leaky.
SonyKV2602
VERTICAL DISTORTION, REPLACE C516 This unit would play for approx. 20 minutes with no problem.After the circuit had sufficiently heated up the vertical would start tocollapse until there was only about 1/2 inches of deflection. We foundC516 to be defective. Monitoring the resistance ac


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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