Dicas Reparação SONY




Modelo - Chassis


Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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(Chassis)
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SonySLVR5UC
BLACK HORIZONTAL LINES (LIKE DROPOUTS) IN E-E: IC701 LR10 BD In E to E mode, black horizontal streaks - similar todropouts.
SonyXR5507
NO AUDIO Unit powers on. Tape and radio are okay, but no there was noaudio. Found C313 shorted.
SonyCDPC235
U/D GEAR/BU HOLDER DISPLACED, PLASTIC PIN FOR REF.111 BROKEN Unit was shipped into Sales office for show and found to beinoperative out of box. Initially, we found tray would not open and unithad constant clicking sound. Opened bottom and found BU holder pinion hadbeen displaced out of groove in gear ref #119. Fur
SonyCDP397
NO AUDIO, NO -5V (REPLACE OPEN L291/L292, P/N 1-410-658-31) Unit plays disc, but has no audio. The low-pass filters andbuffers have no -5 volts. This voltage is produced from coils L291, L292and the +5 volt regulator IC291. If either coil is open the -5 voltswill be missing.
SonySPPS10
NO AUDIO TRANSMITTED FROM BASE - RESOLDER C79. No audio transmitted from base. After confirming the handsetwas good through the analyzer, I checked the base to see if audio wasbeing transmitted. Working my way from Pin 3 of connector (main PCB tobase power PCB), up to Q11 emitter, I noticed that ther
SonySPP320
NO CODE TRANSMITTED FROM BASE Unit did not lock up. Trying out handset and base in testmode, unit worked fine. I tried new ID ROMs, the unit still did not lockup. Going to the base, pushing intercom it should output code (which canbe heard through receive section of the analyzer), b
SonyCCDV101
NOT RECORDING RF FOR HEAD 2/REPLACE Q202, VS99 BOARD Unit will not record RF for channel 2 head. Replaced HR10board. Problem still persists. Traced the signal on HR10 board - Foundno output at Pin 37/IC101 - DC voltage 0.06V higher then pin 24/IC101 -Found Q202 (SS99 board) leaky base collector.
SonyFD285
POOR PICTURE, REMOVED GLUE AROUND RV801 Blury picture, has sound.
SonyKV32TS36
DEAD UNIT, REPLACED Q601, Q602, Q591, AND D603 No picture or sound. Set is dead. Found Q591 (horizontalout) shorted. Also, Q601, Q602, and D603 shorted. R607 was open.
SonyFDC290
CAN NOT SET CLOCK, RESOLDERED CN703 ON THE "B" BOARD The TV works, but the clock can not be set.
SonyKV10FMR20
NO PICTURE - HAS SOUND, REPLACED R835 No TV channels - video inputs work fine, but verticaldeflection was shortened at top and bottom.
SonyD34
DEAD UNIT - JUMPER Q451 AND Q453 EMITTERS. The unit will not function and will not run a test. Checkedpower supply and found proper voltage on emitter of Q451. There was novoltage on emitter of Q453.
SonyD33
UNIT IS DEAD - REPLACE TOP COVER Checked all power supplies, but the unit would not function.Found the door close switch was staying open when the door was closed.The upper assembly panel (top cover) has an arm which closes the switch.The arm was broken.
SonyCDP297
NO AUDIO, NO -5V (REPLACE OPEN L291/L292, P/N 1-410-658-31) Unit plays disc, but has no audio. The low-pass filters andbuffers have no -5 volts. This voltage is produced from coils L291, L292and the +5 volt regulator IC291. If either coil is open the -5 voltswill be missing.
SonyCDPC725
NO AUDIO, REPLACE DEFECTIVE IC203 OR IC204(+/-12V REGULATOR) I have seen this problem several times (no audio or distoredaudio). There are two regulator IC's used to power the audio amp circuitafter the D-A converter: +/- 12 volt supplies from IC203 and IC204.Checked voltages and found one missing.


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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