Sony Repair Tips
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Results: 20100
Results: 20100
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SONY |
TCFX22
|
Bend in slider needed | Transport fails to have take-up in playback or record mode.transport is excessively noisy and will not engage into ff smoothly.all of this can be caused by slider (355) being bent causing ff lever(305) to have incorrect timing in conjunction with take-up | ||
| SONY |
TCFX5
|
Defective regulator q602 | This unit had intermittent bias osc. operation caused by theline mute (pin 21 ic501) being intermittently activated. we found thiserratic operation of the upc to be caused by a noisy voltage regulator- q602. a quick check of the b+ line revealed the pr | ||
| SONY |
STR55
|
Defective ic101 | Tuner section drifts off station intermittently. | ||
| SONY |
SPP11H
|
Open q4 | Noise from hand unit in talk mode even with base-unit powered. | ||
| SONY |
SPP11
|
Defective ic2 ne567 | Base unit would not respond to any function from hand unit.in use light did not light, would not dial out. found ic2 pin 8 wouldnot go low. | ||
| SONY |
RT66
|
Defective reel motor | This unit had poor ff/rew torque and would stall when using90 min tapes. | ||
| SONY |
RS30
|
No shut off after the caller hung up | This unit would take one minute and sometimes more to shut offafter the caller hung up. there would be just a dial tone recorded on thetape. about every 15 seconds the unit would try to hang up. there wouldbe a click recorded on the tape but then the | ||
| SONY |
PSX55
|
Broken contact on switch cam | The tonearm on this unit would not move in to the edge of therecord all the way or set down. we noticed a slight amount of friction inthe tonearm travel. disassembly revealed a broken contact on the switchcam (the electrical feeler that contacts the ca | ||
| SONY |
PS333
|
Defective pitch control | Neither 33 or 45 rpm would lock in. speed was excessive.voltage were correct. | ||
| SONY |
PCMF1
|
Defective d102 | Left channel was noisy - rec level control had minimal effecton noise - input signal was weak and distorted - line amp had some dcoffset at input to lpf - found constant current diode d102 breaking down.when testing this diode on a curve tracer using a 1 | ||
| SONY |
ICF9540W
|
Defective q1 | This unit had poor sensitivity and distorted output in thefm mode. we found the rf amp to be defective. | ||
| SONY |
CFM200
|
Missing part number | The p/n for the mechanism chassis is missing from the servicemanual. however, the chassis from the cfs-400 appears to be very similar,this chassis is p/n a-3102-043-a. are these two chassis the same?the part for the cfm-200 was researched by kc with ne | ||
| SONY |
CDP101
|
Unit out of adjustment | Unit would skip on 2nd track and 5th track. | ||
| SONY |
CDP101
|
Would not read toc | Would not read toc. i could hear something rattling insideunit when i took it out of the box. i found one screw inside that shouldhave been in the sled motor bracket. after correcting this, it still didnot read disc. output of ic403 (eye pattern) was | ||
| SONY |
CDP101
|
Stuck objective lens/coil assembly | The disc would eject before the toc could be read. focusdc drive out of ic204 (tp 10) was correct, but the objective lens in thetop was not moving. | ||
| SONY |
XR77
|
Defective ry301 | The left channel would intermittently cut out on am/fmfunctions during first 5-10 minutes. this at first appeared to be causedby a defective semiconductor. further examination revealed relay 301 tobe the cause. heating and cooling the relay confirmed | ||
| SONY |
XR77
|
Defective q105 | The left channel fluctuated between distorted low output andno output. we found q105 (muting transistor) leaky. | ||
| SONY |
XR70
|
Error in manual | Terminal marking for q303 as shown on pc board incorrect(emitter and base leads reversed.) the picture on page 6 of the servicemanual (supplement #1) is correct but it does not match the silk screenon the pc board. | ||
| SONY |
WMD6
|
Pinch roller support needed bending | C-90 tape (tdk) would not run properly through capstan andpinch roller. problem existed only on tdk 90 minute tapes. hi freq.would drop out-left channel would decrease in volume. tape wrinkleevident at capstan. pinch roller and capstan replacement do | ||
| SONY |
TCK777
|
Poor chassis ground connection | Low level hum in output. |