Sony TV Repair: Common Faults and Solutions.


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Sony Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SONYCDP101
Defective q601Initially there was no system control function due todefective crystal. after replacing crystal unit worked ok for a fewminutes but shut down when jarred. traced problem to defective q601 whichshorted because of misaligned rubber insulator. i think th
SONYCDP101
Sled motor locked upCustomer's complaint was stays in scan. verified problem -visual inspection showed sled motor was locked up. loosened screws onsled ass'y and motor turned freely.
SONYCDP101
Out of adjustmentDealer's complaint was won't accept disc. verified problemon bench. focus operation checked ok, unit would not read toc due to nogfs signal.
SONYCDP101
Out of adjustmentWould not read toc. gfs stays low.
SONYCDP101
Defective ic204 and open r390 and r391Unit would not function at all.
SONYBM600
Defective gearForward will not engage because gear would slip.
SONYXR25
Shorted capacitorNot audio.
SONYXM120
Connection needs to be madeDistributor reports that dealers have complained that thexr-75 will not turn on the xm-120 amp even with both units hooked topurple and blue remote turn on wires hooked together.
SONYWM2
Defective ph501 and ledMotor continues to run after stop button is depressed. doesn't happen all the time.
SONYHMK3030
Broken spindleWhen the lp spindle on this model (which was made of plastic)was broken, a small piece lodge to the auto mechanism preventing the tableto turn.
SONYCDP101
Open r390Disc drawer would not open/no led indication on open/closebutton. disc indication on display would blink normally. found r390(4.7Ω) in +13v line burned open. i could not find any short or lowresistance on this line. the original resistor was 1/2
SONYCDP101
Defective sled motorIntermittent - would not always read toc sometimes read tocbut would not play (ejecting disc instead) other time worked properly.problem first seemed to be mechanically related since a light tap on theback would usually result in start of normal function
SONYCDP101
Out of adjustmentSkipping, jumps tracks.
SONYWM7
Dirty headphone jackRemote function of unit while using head phones (mdr-w5) wasnot functioning in the fwd and reverse mode. however unit was functionmanually in all modes.
SONYTCPB10
Ornamental plate needed repositioningUnit would operate fine but when the stop button was depressedthe unit would stop and start again.
SONYTCK555
Dirty pinch rollerThis unit exhibited excessive wow and flutter. inspection ofthe pinch roller revealed little spots of what looked to be locktight.this same problem has been found on two other units.
SONYTCK71
Open solenoidThe head on this unit would not pull up into the playposition. we found the solenoid to be open.
SONYTCK5
Missing retainer clipThis unit displayed a periodic warble in the sound. a checkwith a torque cassette revealed the back tension to be erratic. we foundthe lever situated underneath the reel table to have come loose. this inturn was periodically rubbing on the reel table.
SONYTCFX1010
Cold solder jointIntermittently, unit would power up with wrong indications,for example, all tape type indicators would light up. also, power wouldsometimes go out completely 7-8 secs after turn on. this unit waspurchased by employee from refurb.
SONYTCFX500R
Open groundsControl functions (play, rec etc) are inoperative totally orintermittently, may stop operating during use or prevent use of functionswhen attempting to enter a particular mode of operation.