It's a Westinghouse LD505e As from today I have to hold the power switch in all the time otherwise it switches itself off. I used to be able to just press once for on, and again for off. Other than that it works fine.
The power switch is non-latching so there's no visual indication of on/off other than the LEDs and beeper. Here's some pics. Power switch is the brown thing on the right.
Reverse side showing power switch on left and control relays.
Transformer
PCB middle
PCB left
Does anyone have an idea of how to diagnose this?
Mike