Search: sony
Results: 20072
Make Model Symptom Problem Solution By
SONY TCFX44
Defective c505 With the cassette door open and power applied, this deckwould go into play mode, although the play led was not lighted.
SONY TCFX30
Belt slipping The customer complained that he intermittently could notopen the cassette door. this was due to the head assembly not completelydisengaging. we found that the belt would occasionally slip on thecapstan during the disengagement process. the belt appear
SONY TCFX25
Improper operation with tape When using basf professional ii, c-90 cassettes, the tapewould skew upwards just past the leader splice, ruining the tape. thecustomer claimed all other brands worked fine, including the newlydesigned basf professional ii.
SONY STRVX750
Ic301 needed reset Original complaint was that switched ac outlet on rear panel could not be turned off.
SONY STRVX550
Ground loop problem Intermittently set would shut off all displays, or would losepreset stations, or sound would be muted until any one button was touched. -hq comments: ground loops can be difficult to isolate. we would haveprobably done the same using braid wire (solder
SONY STRVX550
Missing c654 One channel appeared to be louder than the other. looking atchannels on the scope showed left channel boost in treble when basscontrol was increased. found that c654 was not installed at the factory.
SONY STRVX4
Defective c803 The customer complained of low volume and distortion. wetraced the problem to low b+, we found c803/c804 to have changed in valueand leaking the paste out into the chassis.
SONY STJX44
Open resistor in pack Unit came into shop with the complaint of no memory.checked unit, found that it would not remember channel settings.
SONY PSFL77
Defective switch All functions were inoperative. we found pin 26/ic201(sys con) to be high with the tonearm in the rest position. the metalfingers on the tonearm position switch were bent and not making contact.a simple way to confirm a problem with the position switch
SONY CFS500
Transport jams The unit's tape transport jams in the attempt to record forno apparent reason. button lock plate bar #352 is bent at the recordlever #344. -hq comments: i suspect abnormal customer force applied to the recordbutton while pressing another button at the
SONY CDP101
Break in foil Although the unit played discs, there was no sound, no counterdisplay. gfs was high and the eye pattern was good. but there was nodata at pin 17 of ic503 (cx7934).
SONY XR85
Loading gear Loading gear in unit is not being pushed back to mesh withdrive gear, therefore, the tape is not dropping. when pushed manually,the gear meshes and initiates the loading sequence. -hq comments: replacing the cassette loading gear spring (#335) shouldpe
SONY XR70
Pinch roller shaft Pinch roller shaft loosening from chassis assy causing to eattapes and have speed changes.
SONY XR70
Defective q804 Tape will not load (drop) properly every time it's loaded.lever assy in question cocks the drop mechanism when it catches onthreading arm shaft (p/n 3-573-870-0). -hq comments: when the cassette springs back out a little after beingloaded into the carri
SONY WM5
Leaky q101 One channel dead on cassette, radio works fine.
SONY TCM7
On servicing No way with unit opened up to apply power to any mode andobserve voltages gears operation or functions. we need some kind of jigso that audio board can be remote from mechanism and still be operated.this also applies to model wm-7 as well. -hq comments
SONY TCPB10
Shorted d301 One servicer found no power in several unit. all of them hada defective bridge diode (d301). one of the rectifiers connected to thenegative side of the bridge was shorted.
SONY STRVX550
Defective ic301 Memory would not hold functions. battery and power supplygood.
SONY STRVX550
Tuner not always function Output would switch on and off. tuner would not alwaysfunction. display intermittent.
SONY STRV25
Defective relay When the unit is cold, the speaker protection relay (ry601)clicks, but no audio comes out. opened the case of the relay and foundthe flux from pc board which was preventing the contact of the switchinside the relay.