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Sony Repair Tips




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Search: sony
Results: 20077
Make Model Symptom Problem Solution By
SONY CFD580
No or intermittent cd These pieces typically come in with no or intermittent cd.when checking the eye, found that it is extremely low, .66v on a bad discand only .82v on a good disc. is there any way to increase the rfamplitude? also refer to cfd757 and cdf758. -hq comme
SONY CFD580
Replacement part optic - new style The replacement optic has 18 pins but plugs into #651(reference) translation board instead of being soldered. has a servicebulletin with both #651 and #660 new style replacement part numbers beenissued? -hq comments: there are two versions of kss-360a:
SONY CFD570
No power ac/dc - replace q360, p/n 8-729-924-90. Units came in with no power ac/dc. checked power supply andeverything on power board was ok. traced problem back to ic304 and q360.upon further check, two of the pins of q360 were found to be broken.
SONY CFD570
No power ac and no audio, battery power ok - replace ic302 Unit had no opr/batt led, and no audio with ac power. afteropening the unit the fuse f901 was found to be open. changed fuse and itblew again. traced problem back to ic302 (power amp) by looking at theic, a small hole could be seen on the package.
SONY CFD570
Distorted audio right channel - replace c266, p/n 113617300 A missing film capacitor causes this audio distortion. c266 isconnected to pin10 of ic302 (power amp) w/c is part of the right channelamplification.
SONY CFD570
Cd-no pickup - spins fast - solder ic 706 Cd-no read talk (no pick-up) & spins too fast.
SONY CFD560
Cassette door not staying closed Hook on door breaks easily, preventing the door from locking.it appears to be too thin, and has inadequate support. i have seen 4-5units (about 1/2 of all cfd560s that have come in) with this problem.occasionally, it's the b door, ref 53, pn x33670701, t
SONY CFD560
Error in service manual-correct p/n for hrp301 is 154362811 Part # is not correct. does not come up in computer.
SONY CFD560
The unit won't turn on Unit won't turn on even though regulators are ok.
SONY CFD560
Front panel window part availability When ordering the front cabinet, it doesn't come with frontpanel windows and we are unable to order them separately.
SONY CFD560
No hi speed dubbing - resolder s602 One of the leaf switch's contact is not soldered causings602 (hi speed) not to activate. i found 6 out of 36 (16.6%) of the deckscoming to deck techs to have this problem.
SONY CFD560
Cd no pick up no sled - remove solder blob from ref 401 Solder blob on #401 shaft (k) sled causing jamming sledaction. about 3 of 70 units (<4%) have this problem.
SONY CFD560
Wrong schematic/no supplement. Unit came in with recording problem (only one channel wasbeing recorded). could not find the problem because the bias oscillatorsection in the schematic page 22 is totally different than the audio mainboard inside the unit. the parts lay out is diffe
SONY CFD50
Schematic and board do not agree, cn708,709,701,702 On p.25 of the schematic, the connectors going to the opticalblock assy are marked cn708 and cn709. on the board, these are markedcn702 and cn701. the board layout agrees with the actual board. -hq comments: thanks tor the info. since this unit is 4 ye
SONY CFD470
No radio power - remove solder splash on tu control board Located a solder splash on the tu control board shield. thiswas causing r522, r525 and c519 to short to ground.
SONY CFD460
Volume won't go all the way down - replace ic302 (875205245) Volume would not go all the way down even though the volumecontrol was at minimum. i suspected the cause was in rv302 (vol control). i replaced it and it did not solve the problem. then i traced back toic302 and found it to be defective. replaced it
SONY CFD460
New cd buttons do not line up with old switches. When ordering new front cabinet, cd keyboard switches(s804-s808) do not line up with the new buttons. this is because the newbuttons sit up higher then the old ones, so the old switches aren't beinghit by the control buttons.
SONY CFD450
Cd no play sled jams Cd sled jams because debris (usually pieces of #216 motorboard) lodge between m701 gear and intermediate (black color) gear underthe plastic shield.
SONY CFD450
No power to tape - replace r351 - p/n 1-219-114-11 No power to tape deck.
SONY CFD450
R351 has no part number in service manual - p/n is 121911411 There is no part number or description for 4.7Ω fusibleresistor r351. reference number r351 was obtained from pcb number 60.r351 is located near cn306 on cn309 on pcb number 60. -hq comments: thanks for the info. please refer to r350 (same resistor)