Hi guys!
I have recapped a R-115SW amp, and replaced 2 burned resistors, but I still have issues.
The amp fires up and works for 1-30 minutes before it shuts down. Needs a power cycle (mains) so get back on.
I found ZD4 shorted, and ZD7 is suspect (I measure 65.5V over ZD7, same as the power coming from the PSU).
These are the 2 Zeners close to the board edge, next to the power connector.
If one of you could measure the voltage over these 2 zeners for me, that would be super helpful!
Edit: I also found a burned tiny transistor, in the same chain. Seems to be marked G1 on the component. Maybe Q2 on the board. Any info on this would also be great!