Sony Repair Tips
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Results: 20072
Results: 20072
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SONY |
TCFX33
|
Problems around ic501 | Unit will not lock into play mode and the service manualschematic does not agree with its own board layout in the book andneither agree with the board in the unit. -hq comments: release from play could be initiated by reset pulseor slow oscillator (r-c | ||
| SONY |
TCFX30
|
Grounding spring needed | Intermittent static noise was recorded when humidity levelsare low, erase and r/p heads were eliminated by grounding to chassis thisproblem occurs both on record and playback. -hq comments: 1) please apply grounding spring to erase head as outlinedin ta | ||
| SONY |
TAN88
|
Open c410 | The 78v line was reading about 110v on this unit and thesound was distorted. adjusting rt401 had little effect. we found c410to be open and causing the problem. | ||
| SONY |
TAF55
|
Shorted d406 | The 15v line was down on this unit. we found d406 shorted(located in regulator circuit). | ||
| SONY |
STRVX6
|
Poor connections on q414 | This unit had a dim display and erratic tuning q414 was found to be poorly soldered on the base and emitter leads. | ||
| SONY |
PSX75
|
Arm needed adjustment | Cantilever of cartridge was being pulled to one side, bendingit eventually also mistracking in one channel, poor dynamic range, etc. | ||
| SONY |
ICF2001
|
Error in pcb diagram | When rd amp fails, technician replaces q52 as labeled on pcb,diagram is incorrect. | ||
| SONY |
CFS10
|
End of tape sensor not aligned | As tape moves in play mode - end of tape sensor is not alignedfully with width of tape causing uneven pressure and wrinkling of tape. -hq comments: the crease in the tape is indeed caused by excessivepressure as well as uneven placement of the pu lever | ||
| SONY |
AUDIO GEN
|
T/n #8467 | T/n #8467 list ic cx807-f1 and cx807-f3 as applicable to wm-2.however wm-2 uses cx808 on first and second type board an cx887 on thirdtype board. is cx807-f1 and cx807-f3 replacement for cx808 or cx887? -hq comments: cx-807 and cx-808 ics are identical | ||
| SONY |
XR70
|
Tab adjustment needed | It will not accept tape. cause: eject lever (#387) fails toengage the pin on (#385) when tape is inserted. | ||
| SONY |
XO5
|
Defective switch | This unit had a bad hum in the phono mode (unless the switchwas pushed in and held in hard). the small switch (muting) along side s2would not make contact unless switch was held in. | ||
| SONY |
WMD6
|
Foil missing | No ff and rewind. motor started about 2-3 seconds after theplay switch is pressed. | ||
| SONY |
TCM5
|
Missing parts in s/m | The mechanical layout on page 15 of the s/m is missing parts. | ||
| SONY |
TCFX1010
|
Broken erase head wire | This unit had a distorted output at the p/b head(non-symetrical sine wave). this of course prevented the auto calibrationcircuit from functioning. we found a broken wire at the erase head to bethe problem. | ||
| SONY |
TC530
|
Replacement motor is larger | Ic624-si motor substituted by p/n 8-832-627-00, type ic624hi. servicer states motor sub is physically larger and mounting holesare different. -hq comments: motors are direct replacement.ic624-si motor (8-832-624-09/02) = ic624-hi motor (8-832-627-00) | ||
| SONY |
TC250
|
Replacement part different | X-346-011-0 is too small in diameter. the other idler part #x-027-003-0 looks more like correct diameter. -hq comments: tc-250 unit is approx. 15 years old. similar model istc-350 and tc-102. p/n for its idler is x-002-701-92 and currentlyavailable. | ||
| SONY |
STRVX6
|
Defective ic503 | This unit erratically displayed two or three led segments.we found the drive ic to be defective. | ||
| SONY |
STRVX6
|
Repeated inverter failure | Unit had been serviced twice before for inverter transistorfailure. first time, it was modified by moving q801 regulator transistor.second time, unit was cooked 2 weeks. before being sent back to customer,where it failed again after 3 hours of operatio | ||
| SONY |
SPP11
|
Dialing pulse does not go through | Intermittently when dialing out gets a busy signal and thenumber being called rings only once and then dead line. -hq comments: although no history of such a problem, there are twothings i can think of for an incomplete call. 1) the dialing pulse width | ||
| SONY |
RT66
|
Shorted d1314 | When depressing the pause switch in play mode, the unit goesinto ams mode and stops operation (head goes down), if there is a signalplayed back. |