TV Repair: Common Faults and Solutions.
Search:
Results: 87426
Results: 87426
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | SL5200 | Goes into auto stop from ff, rew | Very intermittent problem, from rewind or fast forward andsometimes play the unit will go into auto stop. rewind and fast forwardcan be pressed again, and will stop again after a few seconds. r653 wasdifferent from value specified in manual, and dr20 b | ||
| SONY | KV25DXR | Locked in service ready mode | These 2 sets were locked in service ready mode. both reportedproblem happened after thunder storms. no screen on displays would work,but all functions would work. hmh as well as all adj in service mode. | ||
| SONY | EVC8U | No threading of cassette tape | No tape threading. loading motor moves. | ||
| SONY | CDP510 | Disc doesn't turn or turns slow with noise | Disc turntable is pushed all the way down. i've seen a dozenunits with the same problem. | ||
| SONY | FD42A | Rv851 and rv502 are reversed | Vertical size adjustment control rv851 and keystone adj.rv502 are reversed. that is, rv851 is the keystone adj. and rv502 is thesize adj. schematic is correct. -hq comments: we will publish a correction on this. | ||
| SONY | TCW530 | Missing part number | I can't seem to find the part number for q549/q548 rotationdetectors in the service manual. am i correct in assuming the numberis 8-719-939-11? please advise. -hq comments: you are correct. the part number for the rotationdetector diode type gp-2509 | ||
| SONY | KV1975R | Horiz. output transistor shorts, replace hdt t501 | The horizontal. output transistor short about every two weeks.found the drive to it to be incorrect. replacement of the drive transformer resolved the problem. | ||
| SONY | KV2645R | No pic/sound, replaced d511, r533 and l510 | The unit had no picture or sound. we found d511/15v rect. tobe shorted and r533 open. the problem was not resolved until l510 wasreplaced, which probably precipitated the problem. -hq comments: l510 is off flyback in 15v line circuit. | ||
| SONY | CCDV110 | Need correct part # ic306 | Part number in the manual is incorrect. part in unit issurface mount ic. part ordered is pcb mount. -hq comments: the correct part # is 8-759-937-56. | ||
| SONY | KV25XBR | Hum in audio with super imposed video | When writing appears on existing picture, it's hums loudly. | ||
| SONY | SLHF400 | Unit intermittently threads | The cassette intermittently would not seat all the way downduring loading. this of course did not permit the unit to thread. wefound the guide plate #230 to be improperly position (see illustration)therefore the cassette would sometimes hang up on it. | ||
| SONY | SLHF1000 | Waving in pb | Customer is experiencing a waving effect during playback. -hq comments: sl-hf1000 can exhibit waving for a few reasons. theflying erase heads protrude slightly farther out than the video heads.this can cause some waving if a thin tape is used. suggest | ||
| SONY | FD42A | Keystone, replaced d602 | Unit had keystone problem, traced problem to base of regulatorq602. had a 5vpp (mostly negative) waveform, nothing at collector.found diode d602 open, not clamping negative half of waveform. | ||
| SONY | CCDM7U | Need part no. for microphone windscreen | P/n for windscreen? -hq comments: p/n is x-2536-710-1. | ||
| SONY | HVM302 | Iris not functioning | No video output except when iris is manually opened. | ||
| SONY | TCWR530 | No record | The unit would not record. we found the problem to be causedby a shorted trimmer cap in the bias osc. circuit, c312. | ||
| SONY | CDP203 | Intermittent shuffle play or erratic operation | We have had several units at the ssc with the complaint oferratic operation or intermittently they will enter shuffle play. theproblem is associated with a cold solder joint on r809 which is acrossthe master control clock crystal. | ||
| SONY | KV25XBR | Retrace lines | The unit operated fine except that on some nbc programs therewould be a 2 to 3 retrace lines on the top of the screen. all othernetworks/channels worked fine and it was only certain programs that wereaffected on nbc (ie, price is right, sections of even | ||
| SONY | ICF2010 | Intermittent operation or no am | Several units with a defective x3 crystal. they exhibit thefollowing symptoms: 1) no am, fm works fine, display works ok 2) unitappears to have a locked up upc. may not be able to turn the display offwith the power switch. am does not work. fm may | ||
| SONY | PSLX5 | Intermittent motor rotation | The unit would intermittently not start up or would shut off during play. |