Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sharp | 76DW18H CW100 | blank screen, sound ok. 2 fuses F601 and F602 near LOPT o/c. | R611 1R 0.5W in +40V supply o/c, F601, F602 2.5A o/c (near LOPTx), SMD Q509 2SB1561 s/c D503 1N4148 s/c (near connector to frame coils) To prevent reocurrence, add 47V zener across +40v, fit in position R626 rear of PCB. In later models this zener is already fitted. |