Sony TV Repair: Common Faults and Solutions.
Search: Sony
Results: 20067
Results: 20067
Sony Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | KV2782R | Could only be turned on and off, no other functions, ic-501 | Set could only be turned on and off. no video, or any otherfunctions. raster was visible with screen control turned up. trouble-shooting revealed no vertical pulse at tp-35. no dc voltage at collectorof q506 and distorted pulse at pin 2, ic501. also | ||
| SONY | WM75 | Ref number | Ref # 154 and 172 are reversed. -hq comments: we will issue a s/b. | ||
| SONY | WMF18 | Wrong ref number | There is no s602. should be s601. -hq comments: we will issue a s/b. | ||
| SONY | KV2783R | Ref #53 and #86 are reversed | Ref. 53 and 86 are reversed. -hq comments: we will issue bulletin on this. | ||
| SONY | CDP101 | Distorted sound | The unit had a very slight distortion in the sound on bothchannels. between selections or when playing back a single sine wave(yeds-7) noise could be seen occurring at about 13-14 khz. | ||
| SONY | SL2710 | Beta hifi mute in x2 mode | Unit worked in all functions except that the beta hifi wouldmute in x2 mode. we found that q14 was turning on in x2 mode despite thefact that af mute line/cn403 was low. there was sufficient forward biasthrough d015 to turn it on. this was remedied by | ||
| SONY | KV1397 | Smeared video | The video was smeared and low level. also the freq responsewas low. we found the collector vol at the video drives to be incorrect.this was caused by open choke in the 180v line. | ||
| SONY | KV5000 | No start | This unit int. would not start up. c611 was leaky andchanged in value. also, whistle and develop severe pie crust effect.this was caused by c608/pr bd, the cap had changed in value. | ||
| SONY | KV1311CR | Aux displayed all the time, see service bulletin 208r1 | Unit displayed aux every time a channel was displayed. itwas possible to remove the aux with a remote hand unit but it wouldreappear whenever the channel was changed or the unit was turned on.changing the memory ic-105 solved the problem. | ||
| SONY | CCDV8AFU | S/m correction (x701, crystal osc) | Part # given in manual is incorrect. itnector on xf3000. correct # is in ccd-v8 s/m and is 1-567-305-11. -hq comments: this info. will be published shortly as a s/b. | ||
| SONY | KV25XBR | Loose color after two hrs of operation | Loose color in several channels after two hrs of operation. | ||
| SONY | KV2782R | Swoosh noise at power off, see sb ctv0259 | When tuning power switch off a swoosh noise appears at thespeaker. | ||
| SONY | SPP22 | No part number | Need part number for board located behind key pad. -hq comments: part number for the pcb is 9-984-490-01. we will issue as/b. | ||
| SONY | KV25XBR | Color beat interference and herring bone | Color beat interference on ch. 27, 28, 29. only on cable,seems to be chassis pick up related, and temperature related. cooling ofic201 fixes problem. -hq comments: try following countermeasures: 1) readjust rf afc, rv201.2) change c203 value to 7pf. | ||
| SONY | KV2680R | Color beat interference and herring bone, counter measure | Color beat interference on ch. 27, 28, 29. only on cable,seems to be chassis pick up related, and temperature related. cooling ofic201 fixes problem. -hq comments: try following countermeasures: 1) readjust rf afc, rv201.2) change c203 value to 7pf. | ||
| SONY | CDP302II | Not compatible with rm-s410 and remote | Cannot plug in 4 pin remote cable from rm-s410. you must useboth remotes. | ||
| SONY | KV1952RX | P/n not in s/m, m block holder, p/n 4-359-114-01 | Part not listed. -hq comments: the part # for the m block holder is 4-359-114-01, butit is not stocked in kc. it can be had on special order from japan. | ||
| SONY | WMF75 | Loose screw on main pcb | Whenever this screw becomes the slightes bit loose unit willhum on tape. this can happen in a very short time. -hq comments: in order to prevent the screw from becoming loose, use alockwasher between the screw and the board as shown. | ||
| SONY | KV25XBR | No video | No video, all other functions ok. video present at input ofic301, but no video at output. pin 35, ic301 had 2.7vdc causing blanking,this voltage was caused by shorted evp transistor q1504 and open zenerdiode d1505. | ||
| SONY | EVS700U | Missing part number (rubber feet) | No part number listed for the rubber feet in this model. -hq comments: part number is given on page 150, ref. #107, p/n3-670-155-11. there is currently stock in kc, so you should have nofurther problems. |