Dicas Reparação
Modelo - Chassis KV2691R
Pesquisa: KV2691R Enviar Dica Resolvida
Resultados 9
Pedir dica reparação
| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2691R | SET SHUT DOWN AT START UP, OPEN C609 | I found a ripple on the retified standby line. | ||
| Sony | KV2691R | SET SHUT DOWN, REPLACED C-609, AND THE FBT | Fuse was blown but the Horizontal Output was ok. Replacethe FBT and the set shut off when powered up. Ripple found on the 5.7vstandby voltage. | ||
| Sony | KV2691R | INTERMITTENT AND NOISY PICTURE, REPLACE L-203 | Picture was intermittently noisy and snowy. Tapping or movingmost anything would cause the set to act up or stop acting up according towhat was happening at that time (looked similar to when you have badconnection on T-203). | ||
| Sony | KV2691R | B+ WON'T REGULATE; UNIT SHUTS DOWN, REPLACE C-540 | The unit would intermittently shut down. The problem wascaused by excessive B+. With 120V AC applied the 130V line wasapproximately 145Vdc. The problem was caused by an open C-540. (locatedschematic G-24) C-540 decouples the B+ line from the horizonta | ||
| Sony | KV2691R | INTERMITTENT LOSS OF Y SIGNAL, POOR SOLDER ON 9V REG Q-204 | The unit would very intermittently loose the Y signal. Onlychroma would be present on the CRT and the chroma level would be low. Wefound the problem to be poor connections around the 9 volt regulator,Q-204. When in the failure mode, the 9 volt line wo | ||
| Sony | KV2691R | NO PICTURE OR SOUND, RESOLDER A-21 CONNECTOR | Set had no sound, no picture, vaster ok. No function withremote control, but set could be turned on or off with manual button.Tests revealed no clock on IC-050, the VIP control. Also, there was no ACinput pulse on T-5 connector, (T) board. The pulse w | ||
| Sony | KV2691R | IC-301 SUBSTITUTION, SEE SB CTV0236 AND 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 | KV2691R | MUTED PICTURE AND NO VIP OPERATION AND NO REMOTE, D-062 | The picture was muted and sometimes after warm up pix wouldcome on. IC052 Pin 2 was high. Found D062 installed backwards atfactory. D062 was installed cathode to B+. The board and the boardlayout show the diode anode to B+. The schematic shows catho | ||
| Sony | KV2691R | DARK BAND ACROSS CRT, REPLACE Q-204 | The unit had a dark band across the CRT about 2/3 up fromthe bottom. The colors were also weak and somewhat out of phase. |