Sony Repair Tips
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Results: 20100
Results: 20100
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SONY |
SLHFR70
|
No tuner audio | No tuner audio. ta mute (ic301-11) high. found l006 on ti5disconnected at collector of q003, preventing h sync from getting to ic301on sa10. | ||
| SONY |
CCDV9
|
Service manual error | Part number listed in manual (above) is incorrect. it is forcx522-153. research revealed that the correct part number is 8-759-112-97for the upd78112gf-505-3be. -hq comments: please refer to service bulletin csv-3 no. cam0032. | ||
| SONY |
SLHFT7
|
Intermittent no audio (r-chan only) | Ckt. board pattern open from pin 15 of ic003 to pin 2 of ic202(via c201). | ||
| SONY |
TAAX320
|
Sub part does not fit | Original switch part number 1-553-318-41 subs to 1-553-318-31.the sub part will not mount due to the screw holes that mount it notaligning with the holes in the frame of the unit. please advise. -hq comments: i had kcp check this out. the spacing betw | ||
| SONY |
BMC550
|
Poor color - very low green and blue | The unit recorded very poor color with almost no green andvery little blue. we found the problem to be caused by a (noseeum) acrossrv70 on the pm-2 board. there was approx. 150Ω to ground from thehigh side of the control. this of course loaded dow | ||
| SONY |
KV2675R
|
Unit stays in sleep mode, ic-104g | The unit was in the (sleep) mode and acted as if the upc wasnot receiving a vert pulse. upon examination, we found the vertical pulseto be only 1vpp at ic103/p.4. this was caused by a defective charactergenerator, ic104 loading the line down. replacem | ||
| SONY |
KV25XBR
|
Screen half dark | The left side of the screen was lighter than the right. also,the video was smeared. we found the problem to be caused by c1658-it hasopened up. this capacitor filters the b+ to the rgb drivers. replacementresolved the problem. -hq comments: c1658 is | ||
| SONY |
VTX1100R
|
Display unstable | The display was very unstable. we found that there was ex-cessive noise on all the b+ lines. this was due to an open decouplingcapacitor - c135 in the dc-dc converter. replacement resolved the pro-blem. the tip off was the fact that the converter was | ||
| SONY |
KV2735R
|
Pic instability when using video disc player, q-353 removed | When using a video disc player, the picture would jump ver-tically whenever there were rapid changes in brightness. we resolvedthe problem by defeating q353. this prevented the vert. pulse from beingexcessively processed. all input modes work correctl | ||
| SONY |
SL300
|
Will not thread tape all the way | The unit would load the cassette and thread about 1 inch andthen eject the tape. we found that the capstan motor was not turning andwas the cause of the problem. replacement resolved the problem. | ||
| SONY |
SL250
|
No tuner vc | No vc voltage for the tuner, unable to tune differentchannels. (also s/n 810516, 813107) | ||
| SONY |
SLHF1000
|
Service bulletin no. 312 | This service bulletin has incorrect information. the correctpart number for q830 a dtc144es is 8-729-900-89. also the diagram forvi-18 mount side is incorrectly drawn. it should look like this correctedversion. -hq comments: a revision on this servic | ||
| SONY |
CDPC5F
|
Service mode test procedure | The method of grounding pin 2 of cnp 521 and pin 8 of ic505does not enable the disc to spin. it will check front panel functs. butcannot make rf adj. or ef adj. -hq comments: this method came from tokyo. we did not know this pro-cedure did not work un | ||
| SONY |
EVC8U
|
Noisy picture (playback) | Tape recorded on this unit played back ok on another unit. inplayback mode, picture very noisy, looked like a de-tuned picture fromtuner. inspection revealed excessive noise on pins 12 and 13 of ic-101,ar-4 board. also, noise present on 5 volt line on | ||
| SONY |
D10
|
No spin and no movement of optical assembly | The turntable spins very weakly and makes very loud noise.the spindle motor was moved inside between two motor brackets. the sledmotor does not move at all. | ||
| SONY |
KV2785R
|
Distortion in stereo mode, attn suggestion | The unit would occassionally develop distorted audio in bothchannels when in the stereo mode. it sounds as if there is an audio out-put starting to break down - popping, crackling, distoriton. the problemwas particularly pronounced on ch. 4 which is ve | ||
| SONY |
CDP750
|
Fop assembly does not meet disc | Fop assembly does not come up to meet disc. | ||
| SONY |
D3
|
No output | No output, no 9 volts to regulator. | ||
| SONY |
ITA600
|
Telephone does not go off line | On some telephone systems, unit would not release line whenhung up. found d303 to be leaky. | ||
| SONY |
EVA300U
|
Incomplete replacement board | After replacing ss-38b bd., the remote control worked inter-mittently. while in play, if search button was held down the unit wouldgo into scan for about 1/2 sec. this would repeat about every 3 sec. intracing the remote signal from the timer board to |