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 | SL3030 | Picture has horizontal lines in playback | Intermittent start of drum rotation or drum off speed. | ||
| SONY | CCDF40 | (characters roll in viewfinder) month, date, year - pix ok | Intermittently, date, month and year out of vertical sync onviewfinder display. no vertical sync pulse to pin 13 of charactergenerator ic-367 on va-40 board. | ||
| SONY | EVS800 | Sound appears approximately 1/2 second after video - pause | Customer complains that sound starts 1/2 seconds after pictureappears. this is very annoying on edits. could the time constant bechanged on audio mute? -hq comments: we have experimented here in the technical departmentwith this problem, and have foun | ||
| SONY | SPP320 | Unit searches too long for a good channel | Unit searches too long for a good channel. | ||
| SONY | GEN-CAM | Incorrect category for service bulletin vid0127 | Shouldn't this bulletin be in the csv-3 category? the onlymodels listed are cameras. -hq comments: yes, you are correct, this should be in the csv-3category. we will issue a revision (vid0127r). | ||
| SONY | CFD455 | Highly intermittent cd operation | I have seen several cfd-454 and cfd-455 with highly inter-mittent cd operation. sometimes when a cd is inserted, focus searchhappens but the cd never starts spinning. it was found that the laser wasnot turning on. | ||
| SONY | CFD454 | Highly intermittent cd operation | I have seen several cfd-454 and cfd-455 with highly inter-mittent cd operation. sometimes when a cd is inserted, focus searchhappens but the cd never starts spinning. it was found that the laser wasnot turning on. | ||
| SONY | SPP90 | No power - x601 | Cannot hear on handset. | ||
| SONY | ITA850 | No icm recording and no speakerphone | Will not take icm and no speakerphone. | ||
| SONY | SLV555UC | Error in service manual | On page 140 of the service manual the measuring point for theswitching position adjustment 2 is listed incorrectly as:ch1: ic-581 pin 8ch2: ic-581 pin 6 rf swp | ||
| SONY | TAM50 | Will not record | Unit was recording static. | ||
| SONY | GDM1602 | No horizontal sync - rolling video | Screen display looks like no sync. checked hd, vd in and outsignal by scope - looks ok. (important to) then check dc on ic-1, pin 2should be 8.2v but measured 0v dc. found c-2 was shorted. | ||
| SONY | SLV353UC | No video in playback mode | No video in playback only blue screen. | ||
| SONY | CDP270 | Drawer will intermittently not close completely | Intermittent operation of drawer. unit will function properly20-30 times in a row and then will not fully load. drawer will close butloading motor will continue to run and will eventually reopen. multipleattempts to realign have proven futile. please | ||
| SONY | CCDF77 | Won't play, reload, ff or rew | Unit would load fine. when any function was used such asplay, record fast forward or rewind, tape would start to move on take upside supply reel would not move tape would bind up unit would shutdown. | ||
| SONY | WMAF58 | No audio on right channel | No audio on right channel (tape and radio). i changed ic-301(amp ic) but it didn't help. i switched head wires from pins 15 and 2 onic-301 and the problem switched to left channel. unit must have a feed-back path through head winding as there was no a | ||
| SONY | VTX1100M | Mts reception | Unit came in for service with no mts stereo receptionsymptom. is this unit supposed to receive us stereo tv sound? -hq comments: according to japan, vtx-1100m is made for general areawhich is using two carrier stereo system. therefore, it is not possi | ||
| SONY | KV27FX10 | Intermittently goes to dark raster only with retrace lines | Ic-1702 had cold solder joints causing loss of 9 voltsregulated. easy point to check for 9 volts at the vhf-uhf tuner. | ||
| SONY | KV2675R | Low voltage shutdown, c-540 open in 135v line | Unit gets low voltage shutdown. as soon as unit's b+ isturned on, you get 150vdc. another technician replaced two each ofic-601 (voltage regulator), still has same problem. if variac is used,lower ac from 120v to 90v, unit will work ok. | ||
| SONY | KV32HSR10 | Dead set, "f" board ic-651 replaced | Dead set had relay click, no b+, had 160v b+ on pin 1 ofic-651. |