| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1326R | NO RASTER/NO SOUND/HV PRESENT, REPLACED TUNER AND R-552 | No raster, no sound and HV is present. Found R-552 open afterchecking 9V supply which measured 2.9V. Disconnecting the collector ofQ-503 restored the 9V and measuring the 5V line revealed a dead short toground. Disconnecting the 5V to the tuner restor | ||
| Sony | KV2644R | DISTORED PICTURE, REPLACED C3004 | Distorted picture: Two lines approximately 1/4 inch thick andspaced approximately 5 inches apart moving upward. They are mostlyvisible on channel 2 and 7 and radiates on nearby TVs on channel 2. Theylook similar to the lines seen when a VCR is put into | ||
| Sony | CDXR77 | SKIPS WHEN STATIONARY AND WITH NEW DISCS | The CD player mistracks scratched and non-scratched discsfound FOP in bad lot number range. | ||
| Sony | CDXR77 | LOADS DISC BUT DOES NOT PLAY | Disc was loaded but sled did not move and reference number 318(Bracket, Damper A) and 307 (Bracket, Damper D) were bent. Referencenumber 412 (Worm Gear) is broken. | ||
| Sony | CDX6020 | SKIPS OR DROPS OUT AT MIDDLE OF DISC - SQUEAL FROM UNIT | Audio cuts out near middle to end of disc. Squealing soundfrom FOP. Observing adjustment positions before alignment, they weredifferent than mine. Focus bias, focus gain, tracking offset and trackinggain. PLL is ok. This also applies to serial numbe | ||
| Sony | KV1543R | NO VOLUME OPERATION AFTER WARMING, REPLACED C001 | Customer complained of volume not working after warming (2-4hours). Found 12V supply to IC-001 pulled down to 8.5V after warmup.Supplied 12V externally to IC-001 and volume worked ok. Pulledconnector to detector PCP (M2-3) and volume worked ok again. | ||
| Sony | KV27EXR10 | BARS ON THE SCREEN, REDRESS WIRES FROM "C" BOARD | Five faint vertical bars across the screen on white backgroundonly. | ||
| Sony | DTC700 | NO MECHANICAL FUNCTION | Unit had power but did not respond to function commands fromfront panel or remote commander. Input to mechanism controller waspresent though no functions were observed. | ||
| Sony | KV27XBR10 | RGB LINES IN PICTURE, SEE SERVICE BULLETIN NUMBER 76 | Three to four retrace lines are visible at the top of thescreen. They do not look like ordinary retrace lines but are of solidred, blue, or green colors. | ||
| Sony | D12 | NO AUDIO | No audio, through troubleshooting I noticed that there wasn't-1.75V at pin 7 (WCLK1) of IC-301 (D/A converter). Tracing this line backto IC-601 (signal processor) pin 79 (WDCK), I found a poor solderconnection. | ||
| Sony | SLV555UC | DURING RECORDING PICTURE BLANKS OUT | The unit was loosing CTL pulse during record. The picturewould blank out during playback. | ||
| Sony | CCDF55 | NO COLOR IN PLAYBACK | No chroma RF at pin 42 of IC-203 (Chroma Process). Lostsignal at C-325. | ||
| Sony | KV20EXR10 | DISTORED PICTURE, REPLACED IC-301 | Distorted picture, display stretched off top of screen. Soundwas fine. Second unit of same model had no color, perfect black and whitepicture. | ||
| Sony | KP5040 | CLEANER FOR SCREEN | What is the part number for the cleaner that can be used onthe screen? -HQ COMMENTS: Part number for the cleaner/Protectant is T-999-112-41.This cleaner must be used with caution. Use only on the stand alonescreens such as with the KP5040, do not use it | ||
| Sony | KV27TS30 | MILD PIECRUSTING/HORIZONTAL TEARING, REPLACE C-501 | The set exhibited a mild form of piecrusting which gotprogressively more pronounced as the unit heated up. We found the problemto be C-501 which is used to decouple the B+ line from the horizontal andvertical oscillators. Replacement resolved the probl |