TV Repair: Common Faults and Solutions.
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Results: 87418
Results: 87418
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | BMC110 | Poor tape path, intermittent distorted picture | When playing back on a good vtr, the playback picture haslines and horizontal pulling at the top and bottom of the picture (this isintermittent). also, picture bounces vertically intermittent. thisproblem looks like the betamovie has bad tape path. | ||
| SONY | STRVX550 | Inoperative remote | Receiver will turn on with remote but no other functionswork. all previous modifications including reset, capacitor, surgesuppressors and ground repairs were done. serial data is entering ic403at pin 21, but no output. | ||
| SONY | CFSD7 | Intermittent functions | Unit will only go into rewind or recording mode inter-mittently. stop button will have no effect. disconnecting power cordwill reset unit to stop mode. pressing any function button, the unit willgo only into rewind. | ||
| SONY | XR20 | Pop noise every 5 seconds | A popping noise every 5 to 7 seconds is heard through thespeakers. | ||
| SONY | KV1221R | Shutdown, replaced q601 | Using an isolation transformer, unit will work properly.when using the wall outlet, unit will not turn on. the only diff. foundwas the isolation transformer output was 8vac less than the wall outlet. | ||
| SONY | KV25XBR | Wrong part number | The service manual shows ic1502 as part number 6-066-717-10 inerror. | ||
| SONY | KV1355R | Wiring error in manual, a-12 connector reversed | In the manual, the wires to plug a-12 on the a board arereversed. we discovered this while troubleshooting a key board problem. | ||
| SONY | KV1920 | Start circuit burns up | The start circuit would fail to turn off despite the factthat the set was running and making 18v for the horiz. osc. circuits.we found the trouble to be caused by a defective horiz. osc. ic. it tookabout 11v to fire, this permitted the start transistor | ||
| SONY | SEH310 | Part numbers for front panel | Front panels came in black or silver, but manual only showsone number, with no indication of color. we need the numbers for thesilver and for the black front panels. -hq comments: the number shown in the manual is for the silver panel.parts for the bla | ||
| SONY | WMF8 | Missing part # for bracket | The service manual for this unit shows two ref. #31 in theexploded view on page 24. the parts list only shows the part # for thelabel and does not show the part # for the bracket. -hq comments: the part number is 3-319-043-01. please refer to t/na007. | ||
| SONY | MDR40II | Part number for head band ass'y | Need correct part number for brown head band assembly.manual says x-2371-808-1 but tech. keeps getting black one. it seemsthat several of the part numbers on page 3 of the mdr-40ii manual arewrong. -hq comments: found the part number of the dark brown | ||
| SONY | STRAV560 | No am or fm | No am or fm reception. when heating xt201, normal function returns. | ||
| SONY | BMC550 | Part number for handle screw | We need the part # for the thumbscrew which attaches thehandle to the necessary shoe on top of the camera. the part number forthe handle is 3-691-167-01, listed under accessories at the rear of themanual. -hq comments: the handle is not available as an | ||
| SONY | TCM600 | Missing part number for stop lever | Need part number for stop lever, page 18 of the manual. -hq comments: the part number for the stop lever is x-3557-403-0. willissue a t/n and s/b. | ||
| SONY | KV25XBR | Ibm pc interface | The kv-25xbr service manual provides no technique or specifi-cations for adjusting the rgb subbrightness controls rv401, 402, 403. ifthis unit performs with the ibm computer, as did its predecessor theprofeel, adjustments may be necessary. -hq comments | ||
| SONY | STJX410 | Wrong p/n in s/m | 8-759-925-10 is tl510cp for but1000. part # should be8-757-925-11 per transistor sub book. -hq comments: the number is 8-757-925-11. we will issue t/n and s/b. | ||
| SONY | XR740 | Car stereo would blink on/off | Dealer was trying to install unit in mercedes with factorypower antenna. when unit was powered up, car antenna would extend to fulllimit, then car stereo would blink on and off and thumping sound could beheard through speakers. | ||
| SONY | KV1331 | Missing part number for bracket, 4-365-826-22 | Need part number for tuner bracket. -hq comments: the part number for the bracket is 4-365-826-22. thebracket is not currently in stock, will be available soon. | ||
| SONY | KV2670R | Buzzing in audio, r-211 cold solder | Servicer complained of buzzing on all channels, at timeslouder on some channels than others. while troubleshooting the set, inoticed that one end of r211 was not pushed through the hole on the pcboard. when i inserted the resistor in the circuit, the b | ||
| SONY | BMC110 | Intermittent no record | Customer complained that once tape was inserted, unit would gointo play mode. record and stand-by switches had no effect. also whenyou could get unit to record, edits were very poor due to insufficientbrake and pinch delays. during malfunction no leds |