Dicas Reparação




Modelo - Chassis


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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyCDX4090
CD SKIPS CD Skips when playing.
SonyCDX4090
UNIT HAS SKIPPING PROBLEM CD Skips.
SonyCDX4090
NO SOUND No sound.
SonyCDX4090
CD DOES NOT PLAY, DISPLAY READS E-04 The LCD display of the unit reads E-04. This may be caused bythe CD making contact with the chucking arm (ref# 122). This may cause theCD not to spin and eventually displaying an error message.
SonyCDX4050
CD DOES NOT PLAY, DISPLAY READS E-04 The LCD display of the unit reads E-04. This may be caused bythe CD making contact with the chucking arm (ref# 122). This may cause theCD not to spin and eventually displaying an error message.
SonyCDTRV21
POOR FOCUS ON EVF (FOUND FOCUS RING ON CRT MOUNTED POORLY) The unit had poor focus on EVF. Found problem to be caused bythe focus ring being hot-glued to the CRT at an angle which preventedgood focus. This apparentlt occurred during manufacturing.
SonyCCDTRV21
WASHED OUT PIX (FOUND IRIS STUCK OPEN, COLD SOLDER CN-101) The picture was washed out. Found problem to be caused by astuck iris. Cold solder on CN101 of the CN-98 board resulted in the irisbeing stuck.
SonyCCDTRV21
NO PIX IN EVF, ONLY VERTICAL LINE (FOUND BAD SOLDER ON L903) EVF had no horizontal scanning, resulting in only a verticalline displayed. Problem was found to be caused by bad solder on L903 onthe VF-102 board.
SonyCCDTRV21
DOOR WON'T CLOSE (MODE SWITCH BAD, MECH DID NOT EJECT FULLY) Cassette door would not close, because the mechanism did notfully eject the last time the tape was ejected. Found problem to becaused by a faulty mode switch.
SonyCCDTRV21
NO EJECT (FOUND TENSION REG. REF 833 WAS JAMMIMG LS CHASSIS) The unit would not eject the tape. Found problem to be causedby the tension regulator plate which had come loose and was jamming the LSchassis.
SonyCCDTRV21
NP FF OR REW (FOUND TEAR IN FP249) The unit would not rewind or fast forward. Found problem tobe caused by unit not sensing movement of the supply reel. This wascaused by a bad conection on FP249, caused by some sort of contact with asharp edge.
SonyCCDTRV21
NO ZOOM (FOUND TAB WHICH FOLLOWS WORM GEAR DISLODGED) Lens would not zoom. After removing the zoom motor found thatthe inner tab which follows the worm gear on the motor shaft had twisted,preventing proper engagement with the worm gear.
SonyCCDTRV21
DRUM IS UNUSUALY NOISY (TIGHTENED 3 SCREWS INSIDE OF DRUM) Drum made rubbing noise while spinning. After removing thebottom plate of the drum assy, found the 3 inner screws loose.
SonyCCDTRV21
NO COLOR IN REC, E-E OK, PRE-REC OK (FOUND X701 BAD) Unit would not reord color. E-E color and playback ofpre-recorded tape color were OK. Found problem to be caused by X701 whichwas not put together properly.
SonyCCDTRV21
INTERMITTENT NO POWER (FOUND COLD SOLDER ON J1 ON DD-80 MCB) Unit was intermittently dead. Found problem to be caused bycold solder on J1 of the DD-80 MCB.


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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