Dicas Reparação




Modelo - Chassis EXCD40


Pesquisa: EXCD40 Enviar Dica Resolvida
Resultados 11
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(Chassis)
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SonyEXCD40
DOES NOT PLAY DISCS (FOK SIGNAL VOLTAGE ONLY REACHES 1.5V) The FOK line would only rise to ~ 1.5V. Problem was caused byIC2 (Servo IC) loading it down.
SonyEXCD40
DIFFERENT OPTICS FOUND IN UNIT Service manual calls for KSS168 optics but this refurbishedunit has a KSS320. Did any of these units use the KSS320? -HQ COMMENTS: We are not sure if this model was ever built with KSS320optics. However, other variations of the CMX-200 mechanisms were
SonyEXCD40
SKIPPING WHEN OUTER TRACKS ARE PLAYED The customer may complain that skipping occurs when outertracks of discs are played. This may occur if the mechanism sub-chassisis bent, which makes it more difficult to maintain proper focus at theouter portions of discs.
SonyEXCD40
NO POWER (REPLACE L401, PART NUMBER 1-410-519-11) When unit is reset, mechanism will reset but display will notilluminate. Radio or Walkman will not turn on however, unit willaccept CD and mech. will play, change tracks, and eject CD. The displaywill not work in CD mode either.
SonyEXCD40
AM TUNING INTERVAL IS 9 KHZ INSTEAD OF 10 KHZ Unit would tune AM in 9 KHz steps instead of 10 KHz steps.On the bench, correct tuning occurred after pressing the reset button.The problem re-ocurred as soon as unit was installed back into the car.
SonyEXCD40
SWITCHES FROM TUNER TO CD AT RANDOM (REPLACE SW80 ON LED BD) While playing the radio, the unit reverts to CD operation evenif no CD has been inserted.
SonyEXCD40
SLOW EJECT CYCLE (REPLACE SW80, SW81, P/N 1-571-754-11) The tuner operation was normal. When ejecting the CD, themechanism will move to the lock position, but the solenoid plunger 332will take thirty to forty seconds to engage to finish the eject cycle.
SonyEXCD40
DISTORTED CD AUDIO, TUNER OK (REPLACE FLEX CABLE REF. 322) The unit was distorted when playing a CD. IC3 pin 78 signalslooked slightly distorted. I changed IC3 but that did not help. Pins 22,21, 20 and 19 on IC301 were distorted so I changed IC301, but that did nothelp either. Then, I changed IC306, IC101 an
SonyEXCD40
PREVENTING DAMAGE TO "E" FLEXIBLE BOARD The flexible board which runs from the main board to the frontpanel board rubs on the retaining tab protion of the frame until theprotective coating is worn through. This allows the printed traces of theflexible board to ground against the frame, thus c
SonyEXCD40
LAMPS STAY ILLUMINATED WHEN "ACC" IS SWITCHED OFF Lamps and display stay illuminated when the vehicle's ignitionis turned off.
SonyEXCD40
NO AUDIO FROM TUNER (JUST HISS), CD AUDIO OK There was no audio from the tuner (AM and FM). Only hissingnoise was heard.


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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