Dicas Reparação
Modelo - Chassis KV2680R
Pesquisa: KV2680R Enviar Dica Resolvida
Resultados 46
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2680R | NO VIDEO THROUGH TUNER OR VIDEO INPUTS, IC-1410 | No video through any inputs. Sound is ok with blank rasteronly. Traced video with a scope to pins 2 & 7 of IC-1410. Nothing comingout of pin 4. | ||
| Sony | KV2680R | UNABLE TO ADJUST PURITY, COLD SOLDER ON THP-601 | Picture looked like a rainbow. | ||
| Sony | KV2680R | POOR B+ REGULATION AND EXCESSIVE HIGH VOLTAGE, C-540 OPEN | The unit had excessive high voltage and was prone to shuttingdown. The 135V line was between 145V and 150V depending on the AC inputvoltage. Regulation was very poor. The problem was caused by an openC-540. C-540 decouples the 135V line from the hori | ||
| Sony | KV2680R | NO SOUND OR PICTURE JUST SNOW, REPLACE X-101 CRYSTAL | No sound or picture just snow. Set could be turned On or Offmanually, no other functions would work. Remote control would not turnset on but all VIP functions would work. SIRCS signal was present at pin31 of IC-103 but no clock or data transfer to IC- | ||
| Sony | KV2680R | IC-601 NO REGULATION, REPLACE C-540 ON 135V LINE | Found IC-601 power regulator would not regulate. | ||
| Sony | KV2680R | SHUTDOWN, C-540 OPEN | Set would shutdown intermittently due to high B+ (145-150Vdc).Replaced STR3035 in regulator circuitry to no avail. R-608 (20 watt220 Ohm) was cool. Set also showed no ripple at normal line voltage. | ||
| Sony | KV2680R | IC-301 CX20129 SUBSTITUTION, SEE S/B CTV0236 TVP0025 | When replacing IC-301, the substitute part does not work. -HQ COMMENTS: We have two service bulletins which pertain to the above.Please refer to service bulletin No. CTV0236 and TVP0025 (CSV-1). | ||
| Sony | KV2680R | INCORRECT P/N IN S/M - NECK COVER, CORRECT P/N 4-334-942-00 | Part number in service manual (page 19, Ref. No. 6)9-910-999-51, is incorrect. The same part number 9-910-999-51 is foundin the KV-2680R service manual on page 46, Ref. No. 9 .... the samesolution applies. | ||
| Sony | KV2680R | TECHNICAL DATA DOES NOT ASSIST WITH TROUBLESHOOTING, IC-104 | The following words were spelled as indicated. All otherdisplays were spelled correctly. Sleep - Slgep, Muting - Mutwng, Aux -Auxe, Video - Vidfo. | ||
| Sony | KV2680R | FOCUS SPARK GAP ARCING, REPLACE CRT SOCKET | CRT was replaced. Now arcing from focus spark gap (neon lampwithin CRT socket) occurs every 5 seconds continuously, causing randomhorizontal lines through picture, but no shrinking of picture size. | ||
| Sony | KV2680R | NO SYSTEM CONTROL, IC-1303 ON "X' BOARD | It was not possible to control any functions, picture andsound were muted. We found IC-1303 to be defective. Pin 13 was constant-ly high and did not permit data out of the controller to pass. -HQ COMMENTS: IC-1303 is quad nand gate associated with IC- | ||
| Sony | KV2680R | AUDIO ONLY ON STEREO STATIONS, REPLACE LPF | Customer complained of low volume and no sound on non-stereostations. I also found that when going to (both) modes I had no audio. | ||
| Sony | KV2680R | S/M DRAWING ERROR ON BRIDGE REC S3WB60Z, SEE S/B TVP007 | The basing diagram for the bridge rectifier is wrong in themanual. This error exists in all other listings for this S3WB60Z(8-719-503-06) bridge rectifier. | ||
| Sony | KV2680R | SNOWY PICTURE, REPLACE Q-1132 AND Q-1133 | Snowy picture on higher channels. | ||
| Sony | KV2680R | FLASHING VIDEO, COLD SOLDER ON JUMPER TO IC-301/P14 | The picture would intermittently flash and the contrastlevels would shift momentarily. We found the problem to be caused by acold solder connection on the jumper connecting to IC301/P14. Seeattached. |