Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | KV1743R | TUNER LOCKS UP | Tuner was locked up on Channel 5. When channel button waspressed, the picture from other channels would appear for an instant, thenrevert back to Channel 5. Volume and power would not function. | ||
Sony | KV1743R | SHUT DOWN | This unit immediately went into HV shutdown. At first theproblem appeared to be a power supply/shutdown type of problem. Howeverby holding Pin 12/IC501 low with a power supply and running the AC up ona variac, it became apparent that the shutdown was b | ||
Sony | KV1743R | REPAIR BOARD COMPATIBILITY | Chassis #SCC204A-A found change in M-2 board not reflected onprint. R025 exists in series with IC031. Which print applies? Are thereany other changes? -HQ COMMENTS: R025 resistor's function is to fine tune RC constant forVC formation from PWM pulses. |