Sony TV Repair: Common Faults and Solutions.
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Results: 20067
Results: 20067
Sony Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | KX2501 | No video, replaced q1903 | Set powers up with h.v. and audio. no video. q1901 gets veryhot, b+115v. measure resistance l1505 on d board to gnd, found short.q1903 shorted. | ||
| SONY | XR780 | Part no for spring 428 | Need p/n for spring #428, other part has #428 also, needspring only. -hq comments: the p/n is 3-596-509-01 which is ref. no. 427. | ||
| SONY | CFS77 | Missing part ref and illustration | Received this unit with transport apart and parts missing.see page 38 of s/m. need p/n of spring that pulls head deck down or onesuitable spring. -hq comments: ref # is 409 and p/n is 3-579-027-00. | ||
| SONY | SL2415 | Loss of picture in cue/review under vibration | Unit had intermittent loss of picture in cue and review modes.while troubleshooting unit, i noticed that by tapping on dl-1, the pixwould come and go. | ||
| SONY | KV2084R | No picture, cracked board | Unit would turn on, hi v would come up, but no pix, blackscreen. push button controls inoperative. no signal on key scan lines.sleep light on. | ||
| SONY | KV2680R | No video, hi voltage ok, reseated connector a21 | Power would come on, sound ok, no raster, no control offunctions. traced problem to ic031 on x board, no 4 meg clock on pin 16.servicer had replaced crystal and chip. no ac ref signal on pin 16 of xboard, traced signal to a21, pin 1 on a board. signal | ||
| SONY | KV2781R | Shut down, resolder hlc l-515 | Upon turning set on, the unit would immediately shut downsubbing ref voltage and sensing voltage to pins 4 and 12 on ic301, setwould still shut down. froze different section of a board. when hlcgoes as frozen set would stay on. upon unsoldering hlc, f | ||
| SONY | SLHF400 | Audio noise in beta hifi | Checked s/n at 400hz, was -68db. checked distortion at 400hz,1khz, 5khz and 10khz all read less than 2 1/2%. but a buzzing noise isheard also sounds like pumping. buzz can be heard on movie blue thunderwhen he sets his watch. also noticed buzzing on | ||
| SONY | MDRE248 | Need p/n for earphone cord only | Need part number for earphone cord only. -hq comments: in order to get the cord you must order p/n x-2386-407-1which is connector item #3 in service manual. | ||
| SONY | XR66 | No am | The unit had intermittent am operation. we found the 8v bussto the tuner to be loading down. the problem was caused by a defectivec516/47uf @ 10v. | ||
| SONY | SLHF400 | No audio | No sound. | ||
| SONY | TCFX410R | Tension spring | Need head tension spring p/n 3-319-634-01 for tc-fx410r.kc shows none in stock or available. -hq comments: one piece of p/n 3-319-634-01 is being sent to you. | ||
| SONY | KV1311CR | No audio on tv, replaced ic-881 | No audio in tv mode. checked ic-881/pin 2, audio signalpresent. but ic-881/pin 1 no audio signal. | ||
| SONY | STRAV230 | Low volume ac hum in output | Low volume ac hum in output. | ||
| SONY | XR740 | Continuous auto reverse | Unit would auto reverse continuously. | ||
| SONY | MDRA25 | No part number for divergence cord | Mdr a25 is a repairable unit, however no part number fordivergence cord. -hq comments: the cord is part of the headband assembly. it comes asone piece. | ||
| SONY | XR780 | Part number missing | Protector (p/n 3-323-287-01) not called out on prints. also,many breaking. suggest fingers be made stronger. -hq comments: a service bulletin has just gone out regarding thisproblem. we will notify tokyo of breakage. | ||
| SONY | CCDV8AFU | Distorted pb picture due to drum/capstan problem | This unit had a problem where the drum and capstan motorswould run uncontrollably for 4-5 sec then the unit would shut down andonly eject would work. i found q508 open. this caused ic501 to get veryhot only in play mode. | ||
| SONY | KV1210U | Sub fbt | This sub fbt has instructions for installation but they are in japanese. i have a servicer that needs these instructions as soon as possible. -hq comments: we will publish service bulletin on this. | ||
| SONY | XR75 | Missing part numbers | Need part numbers for spacers where they are located in 7iin supplement #1. -hq comments: see supplement no. 1 published in march 1984, spacers areitems #347 and #348 p/n 3-592-651-00 and 3-592-652-00. |