Hi,
I am trying to repair a Philips receiver 70FR260 or FA260. It had shorted clamp diodes and open control transistor for the power relay. I replaced them, but still the microcontroller does not wake up. If I pull down the micro output, the power relay turns on the set. All supply voltages are present but the display is dead. Also removing the back up batteries for a while didn't help. The micro controller oscillator is running, all of its signals seem to be ok, including the key scanning pulses. So its program is probably running. I would appreciate suggestions to wake up this stubborn receiver!
Best regards,
Gerhard