Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | KV9300 | NO VERTICAL SWEEP | No vertical sweep. The base of Q-503 had a vertical pulse onit. Voltages were changing when you adjusted RV-502 (V. hold) and RV-503(V. size). No vertical pulse on collector or emitter of Q-503. Checkedfor open Q-503 which checked ok. Performed resi | ||
Sony | KV9300 | INCORRECT BRIGHTNESS | The set has an excessive brightness. The screen control ishigh and cannot be adjusted, R706 is open. | ||
Sony | KV9300 | RETRACE LINES | Retrace lines, no screen control. | ||
Sony | KV9300 | NO CONTROL OF BRIGHTNESS | No control of brightness, excessive brightness even withscreens and drives down, voltages OK in ABL drive circuits. Also incolor. |