TV Repair: Common Faults and Solutions.
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Results: 87441
Results: 87441
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | CDXR77 | Loads disc but does not play | Disc was loaded but sled did not move and reference number 318(bracket, damper a) and 307 (bracket, damper d) were bent. referencenumber 412 (worm gear) is broken. | ||
| SONY | CDX6020 | Skips or drops out at middle of disc - squeal from unit | Audio cuts out near middle to end of disc. squealing soundfrom fop. observing adjustment positions before alignment, they weredifferent than mine. focus bias, focus gain, tracking offset and trackinggain. pll is ok. this also applies to serial numbe | ||
| SONY | KV1543R | No volume operation after warming, replaced c001 | Customer complained of volume not working after warming (2-4hours). found 12v supply to ic-001 pulled down to 8.5v after warmup.supplied 12v externally to ic-001 and volume worked ok. pulledconnector to detector pcp (m2-3) and volume worked ok again. | ||
| SONY | KV27EXR10 | Bars on the screen, redress wires from "c" board | Five faint vertical bars across the screen on white background only. | ||
| SONY | DTC700 | No mechanical function | Unit had power but did not respond to function commands fromfront panel or remote commander. input to mechanism controller waspresent though no functions were observed. | ||
| SONY | KV27XBR10 | Rgb lines in picture, see service bulletin number 76 | Three to four retrace lines are visible at the top of thescreen. they do not look like ordinary retrace lines but are of solidred, blue, or green colors. | ||
| SONY | D12 | No audio | No audio, through troubleshooting i noticed that there wasn't-1.75v at pin 7 (wclk1) of ic-301 (d/a converter). tracing this line backto ic-601 (signal processor) pin 79 (wdck), i found a poor solderconnection. | ||
| SONY | SLV555UC | During recording picture blanks out | The unit was losing ctl pulse during record. the picture would blank out during playback. | ||
| SONY | CCDF55 | No color in playback | No chroma rf at pin 42 of ic-203 (chroma process). lostsignal at c-325. | ||
| SONY | KV20EXR10 | Distorted picture, replaced ipc-301 | Distorted picture, display stretched off top of screen. soundwas fine. second unit of same model had no color, perfect black and whitepicture. | ||
| SONY | KP5040 | Cleaner for screen | What is the part number for the cleaner that can be used onthe screen? -hq comments: part number for the cleaner/protectant is t-999-112-41.this cleaner must be used with caution. use only on the stand alonescreens such as with the kp5040, do not use it | ||
| SONY | KV27TS30 | Mild piecrusting/horizontal tearing, replace c-501 | The set exhibited a mild form of piecrusting which gotprogressively more pronounced as the unit heated up. we found the problemto be c-501 which is used to decouple the b+ line from the horizontal andvertical oscillators. replacement resolved the probl | ||
| SONY | CVPG500 | No power | No power. | ||
| SONY | SPP320 | No charge | Two incidents of bent battery contact springs. | ||
| SONY | KV32XBR70 | Shorted horizontal output transistor, replace ic-301 & h out | Set would turn on with a high squeal then shut down.eventually it shorted the horizontal output transistor. i belive the hor.freq. was too high. | ||
| SONY | SSU501AV | Crack on cabinet | Cabinet comes apart at top corner. glue was used only on the 4corners which hold back cover. it needs glue all around as on new cabinet. | ||
| SONY | STRAV910 | Low level hum | Low level hum. tightening the screws which attach the pcboard to the chassis seem to clear the problem. i have received manycomplaints relating to this. | ||
| SONY | STRAV1010 | Low level hum | Low level hum. also pertains to serial numbers 807558 and804110. | ||
| SONY | STRAV1020 | Distorted sound | Distorted right channel audio in surround mode. | ||
| SONY | KV27HFR | No on screen display, leaky d-121 | No on screen display. |