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 | KV1715R | No picture | Intermittently this unit would lose video and the raster wouldget very bright, with retrace lines. | ||
| SONY | KV1541R | Vertical roll and foldover, replaced c574 and q551 | Vertical roll and fold over problem. | ||
| SONY | KV1513 | Shut down | Horizontal shut-down after unit is turned on. | ||
| SONY | KV1217 | Shut down, cleaned and adjusted hor. freq. control | Set going into hv shut down intermittently when turned on.set would also horizontal freq. adjustment was on very edge of locking. | ||
| SONY | KP7225 | Dead, yoke connector loose caused other parts to fail | Initial problem - dead. replaced ic301 and q202 on a boardplus f602, 1.6a fuse on board. this restored sound and hi voltage.crt's were blanked out. further examination disclosed q601, regulatordriver, q609, regulator, r609 150Ω at 1/8w open which d | ||
| SONY | VTX1000R | Ch 14 would not lock | Cable ch. 14 could not lock in on a cable co. using hrc cablesystem. aft is not pulling far enough down to lock on ch. 14. | ||
| SONY | VTX1000R | Tuning would not lock | At turn on, unit would display random channels, never the lastchannel which was displayed at turn off. inspection of circuit revealedno reset pulse at pin 7 of ic001 on a board. this pulse is supplied fromic002. voltage check on ic002 showed only abou | ||
| SONY | TV790 | Shut down | Picture takes 5 to 10 minutes to come on and sometimes goesoff after on. found osc. signal at drive transformer weak if probe istouched anywhere before h. drive transistor picture comes on. found e-bjunction of q502 open when transistor cold. | ||
| SONY | TV770 | Battery pack availability | Have been contacted by two customers regarding replacementbatteries for eveready type 563. they both stated they contactedeveready distributors for a replacement and were informed that type 563is no longer available and that there is no substitute. hav | ||
| SONY | KV9200 | Incorrect brightness operation | Right side of the screen is brighter than left. | ||
| SONY | KV9200 | Part mismount | On printed circuit board w, capacitor c524, the marks forpositive and negative connection are incorrectly placed. | ||
| SONY | KV5000 | Dead | Days to weeks after repair unit blows 2sc1034 chopper andfuse. original service was chopper transistor and fuse replacement.servicer did not find cause of this failure. | ||
| SONY | KV2648R | H stripe on the screen, replace ic501 | This unit had a 1/2 inch wide horizontal stripe across thetube that was slightly darker than the remainder of the crt. the signalat ic501 was down to about 1vpp at pin 9. the dark stripe was causedby the spreading of the raster lines in this area. the | ||
| SONY | KV2648R | No hue conrol with remote, replaced ic4002 | No hue control in remote operation. pins 9 and 11 only go1.3v high. also both go high at the same time. | ||
| SONY | KV2647R | Picture distortion, replaced yoke | Raster was distorted at top of picture. customer complainedproblem most noticeable when any vertical line (or lines) appears onscreen. straight lines were bent in towards center of crt. looked likepincushion correction problem. any physical movement | ||
| SONY | KV2645R | Audio pop noise, replaced t207 | When changing channels, a pop occurred at the speakers.sound was normal otherwise. troubleshooting revealed a signal distortionat ic202 pin 5 that is synchronized with the muting input at pin 4. | ||
| SONY | KV1947R | Incorrect tuning operation, replaced ic001 | Pressing channel up or down button on remote or on the manualfunctions would give no response. direct access tuning worked. | ||
| SONY | KV1945RS | No last channel memory, parts touching | Unit came into servicer with complaint of intermittent nolast channel memory, volume level and brightness level. servicer checkedall voltages. they were ok. he replaced ic001 thru ic006 but unit stillhad the problem. | ||
| SONY | KV1722 | Q510 failure, replaced damper d517 | Intermittent failure of gcs (q510). the technician complainedthat all voltages waveforms etc. were in order. yet this set would veryintermittently blow the horiz. output q510. careful examination revealedthe solder land on d517 (damper) to be loose. | ||
| SONY | KV1710 | Dead | Problem of replacement fbt first reported out of houston fscand later from servicers. fbt p/n 8-983-126-15 subs to 1-439-120-00replacement flyback has added resistors for protection and pin #3 isgrounded at terminal. pin #3 is 18v supply and should not |