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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyHCDH1600CD DOOR WILL NOT STAY CLOSED - REPLACED OPTICS Door will not stay closed after opening first time. Othersymptoms are no focus search.
SonyHCDD550PINCH ROLLER MISSING FROM UNIT - REPLACED PINCH ROLLER Missing pinch roller.
SonyHCDD109RECORDING ON "B" DECK WILL NOT PLAYBACK -REPL IC103 A recording on the B deck will not play back.
SonyHCDC33CD MECH INOP - MANUALLY TURNED GEAR #268 FREEING MECH CD mechanism not working. When you apply power,initializing keeps repeating across the front panel display.
SonyHCDC33EXTENSION CABLE OFF CN101 When removing the CD mech assembly it can be operated outsidethe unit with the use of one extension cable coming off of connector.CNN101 on main board with this extension cable the whole cd mech can beoperated outside the unit. This will help in seeing
SonyHCD541ADAPTOR BD NOT POWERING THE UNIT PROPERLY The adapter board, J-2501-074-A, that I received for use inadapting the power jig has a problem. When the board and cable are usedthe display is dim at the right edge. In addition, the CD spindle may ormay not work. The adaptor is being forwarded for you
SonyHCD541HCD541 TEST JIG - INCORRECT WIRING OF CABLE Test jig for HCD 441 & 541 will not power up unit.
SonyDXAC90ADJUSTING TAPE SPEED After putting in new motors, needed to change tape speed butthe controls are buried in the unit and no extension cables are available.It's really hard to do this except by turning unit off, taking it apart,turn controls and hope you turned the right way
SonyDTCM100DAMAGES TAPE - CLEANED STICKING GEAR REF 372 Unit eats tape when ejected. Found gear ref 372 sticky, movedslowly out. Causing damage to tape when ejected.
SonyDTC700NO T/U REEL MOVEMENT WHEN PLAY PRESSED - REPL TENSION REG First problem was taken care of by re-timing mech. Secondproblem was fixed by tension regulator assy, which was kinked, causingexcess drag in ff. The back tension did test at 6 gm/cm. in play.
SonyDTC690PLUG IN INPUTS UNIT HAS HUM - TIGHTEN COAX INPUT GRND SCREWS Screws at coaxial in and line in/out were loose, thiscaused hum when in playback or record modes.
SonyDTC670REPAIRED TAPE SKEWING USING TR SERIES CAMERA TAPE GUIDE With regard to the continuing problem of sound distortion andtape wrinkling, replacing the tape guide (item 306, part of 310 on pg 56of the service manual) with a fabricated guide constructed from the outerbrass portion of the TG3 guide in the FL mechani
SonyCDPX111ESFLASHING DISPLAY - REPLACED C202Display is flashing and no other functions work, except on/off.Scoped Q204 base shows similar to RF envelope. Checked IC401 -31.9V lineand found that it's pulsating.
SonyCDPC900WILL NOT LOAD DISC - REPLACED D902 Everything worked normally except the rollers would not turn.IC903 voltages seemed normal except when the rollers should be turningIC903 was not suplying voltage to M602 load motor.
SonyCDPC445CDPC445 PROGRAM MODE When changing CD's after playing program mode the musiccalendar flashes and when you push skip disc it jumps 2 or 3 positions.



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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