I agree :) !

Following a connection error ( 230VAC on the signal input) the transistor, 2 CMS resistors and copper tracks burned.

correction : 230VAC from filter

Hello Zvolt,

Thank you for your suggestion.

I also have page 4/5. It's the only one I could find on specialized forums.

I found four shorted power MOS transistors IXYS and a Darlington transistor TIP120. I'll replace them tonight.

However, I caused a fault by making a wiring error when connecting the filter upstream.

I blackened some copper traces, and I'm going to have a hard time repairing this part without a diagram or model.

I'll take a photo to help you locate this fault.

Sincerely,

Lionel