Sony Repair Tips
Search: sony
Results: 20072
Results: 20072
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SONY |
KV1946R
|
Dark picture, r715 open | Picture was dark. measured screen voltage. range was from105-185 vdc. found r715 reading in the megΩ. | ||
| SONY |
KV1922
|
Picture distortion | Set had pincushion problem. traced problem to q514. signalat collector was distorted. | ||
| SONY |
KV1915
|
Dark picture | Picture was very dark. no brightness and no 900v to crt. | ||
| SONY |
KV1914
|
Tuning drift | Stations could be locked in, but then would drift off. pin 10of ic201, aft amp out was floating, and voltage was varying. | ||
| SONY |
KV1747RX
|
Dark picture | Color information was present but there was no luminance atoutput of ic341. input signal was ok. | ||
| SONY |
KV1713
|
Picture distortion | Short width - from 1/2 to 1 inch. problem starts as pinproblem. servicer then finds picture just a little short of width. mayhave been like that for some time. | ||
| SONY |
KP5040
|
Mechanical misoperation, greased small gear shaft bearings | The door would open only halfway and the motor would shutoff. the door would not close more than 2 inches before shutting off.there was no grease on the small gear shaft bearing. | ||
| SONY |
KP5020
|
Overscan green crt | Green tube was overscanned. traced problem to q5337.transistor was leaky from collector to emitter. | ||
| SONY |
FD20A
|
Dead, repaired cracks on board | Set came in dead. no power, whether using batteries or acadaptor. | ||
| SONY |
KX2501
|
White vertical bar on the picture, see circuit change below | White vertical bar about three inches in from the left side of the screen. it would go away when the pc boards were opened out to the service position. | ||
| SONY |
KV2649R
|
Intermittent power on/off, replaced d021 | Intermittent power on/off. customer controls erratic.found d021 leaky on mt board. | ||
| SONY |
KV2649R
|
Volume low, replaced t205 | At maximum volume setting, the volume was about 1/3 of normal. inspection of sound output signal at pin 14, ic201, revealed avery low level signal. | ||
| SONY |
KV2647R
|
No signal reception on chs 11 and 13, replace ic-002 | Could not tune in chs 11 and 13. all other channels ok. | ||
| SONY |
KV2647R
|
Shut down, power module | Power module causing high b+, shutting the set down. uponreplacing power module, noticed non-linearity in the bottom half of thepicture. top half of the picture was fine. | ||
| SONY |
KV2643R
|
Shut down, replaced d502 on a board | Unit would shut down when the voltage of d502 dropped below4.8v. in the schematic pin 9 of ic501 shows 5v. proper voltage shouldread 5.8v. in turn d502 would read 5.6v. when the voltage at d502dropped to 4.8v, waveform was distorted and unit would sh | ||
| SONY |
KV2145R
|
White h band on the screen, r520 increased in value | After ten minutes of operation, this receiver displayed aone-half inch white horizontal band at the top of the screen. verticalsize and linearity were not affected. | ||
| SONY |
KV2142R
|
Snowy picture, replace d2214, q2224, q2220 & uhf tuner | Snowy picture on all channels except ch. 2. the reason youwould get a clear picture on ch. 2 is due to the low voltage used onch. 2 coming through the uhf tuner. | ||
| SONY |
KV1952R
|
Picture distortion, c544 open | Set came in with narrow picture, pincushion distortion andvideo smearing. the 200 volt line measured about 140 volts. | ||
| SONY |
KV1948R
|
Vertical roll on weak signal ch., resoldered r581 | Vertical roll on weak signal level. no problem on strongvideo signal. | ||
| SONY |
KV1547R
|
Vhf channel fade out | After 30 min. to 1 hour of operation, low vhf channels fadeout. |