Dicas Reparação SONY




Modelo - Chassis


Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyCDPS107
UNIT SKIPS WITH NEW MD ASSY, DEFECTIVE NEW STOCK Units needed MD assembly (skips).
SonySTRAV270X
NO STATION PRESET MEMORY After programming stations into preset memory, memory is lostwhen unit is turned off (but still plugged in). IC-301/pin 26 loses the5V when set is switched off.
SonyTAAV601
LEFT/RIGHT OUTPUT DIFFERENCE IN SURROUND MODES Customer and servicer are questioning normal operation of thisunit. When equal levels are set with surround modes off, then whensurround modes are switched on, left channel has slight gain increasewhile right channel has slight gain decrease. -HQ COMME
SonySTRAV570X
RIGHT CHANNEL INTERMITTENT, DUE TO DEFECTIVE VOLUME CONTROL I have three dealer units with defective volume controls. Twoare with noise and one is distorted. Kansas City has not been able toprovide the control. These are new models.
SonySTRAV23
RIGHT CHANNEL IS INTERMITTENT I have this unit and two STR-AV570X units with volume controlproblems. Kansas City has been unable to provide the control. These arenew units.
SonyCDP291
UNIT SKIPS, DIRT STICKS TO SPINDLE PLATE ON SPINDLE MOTOR Disc wobbles when turning and RF waveform is jittering.
SonyCCDF501
NO VIDEO IN RECORD OR PLAYBACK Video was muted in Record or Playback. -SOLTION: Mask pulse from digital titler IC-901 into IC-201. Pin 29would not end when video was input into IC-201 pin 3. This was becausethe sync det line into IC-901 pin 11 would not stay high. IC-501 (syscon)p
SonyKPR46EX20
INTERMITTENT SHUT DOWN, REPLACED Q-617 The unit would very intermittently shut off. The initial pro-blem appeared to be a typical high voltage shut down. Closer examinationshowed that it was caused by activation of the OVP line from the switchingpower supply G board. This was caused by a t
SonyKV2645RS
INTERMITTENT FOCUS/BRIGHTNESS After the unit was on for a while, it would intermittentlychange in brightness and de-focus. The problem was caused by intermittentarcing between pin 1/G4-Focus of the CRT and pin 12/G2-Screen. The arcingbetween these two pins was across the glass unde
SonyKV27HFR
INTERMITTENT SHUT DOWN, REPLACE IC-681 ON "G" BOARD The unit would very intermittently shut down. The relay wouldopen in the failure mode indicating a problem with the OVP circuit. Theproblem was caused by an intermittent power module DM-36/IC-681 in theswitching supply. Replacement resolved the proble
SonyKV32XBR55
PULLING/LIFTING FOIL FROM BOARD, Q-502 Appears somehow Q-502 is pulling away from board. Pulling/lifting foil from board. Foil is still in contact on transistor withsometimes a cold solder joint. Usually emitter pulls down first, thencollector then base. I have seen this problem 6-12 time
SonyKV27XBR
Q-502 "A" BOARD PULLING FOIL FROM BOARD HI DRIVE,NO SOLUTION Appears somehow Q-502 is pulling away from board. Pulling/lifting foil from board. Foil is still in contact on transistor withsometimes a cold solder joint. Usually emitter pulls down first, thencollector then base. I have seen this problem 6-12 time
SonyITA505
UNIT CUTTING OFF WHEN CUSTOMER PICKS UP OTHER PHONE Unit cuts off when customer picks up other phone. -HQ COMMENTS: This problem occurs because when an extension phone ispicked up, the tel line voltage drops below 5 volts and the unit cuts off.A tech flash and a service bulletin have been issued to modif
SonyCCDF40
ONLY BLUE COLOR ON CAMERA MODE When in camera mode, only blue color.
SonyCCDV8AFU
CAMERA POWER ON-OFF PROBLEM Camera switch does not function intermittently comes on whenbattery is put in. It then will not shut off.


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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