Hello,
Again, I have a hard time to diagnose an SMPS in an active speaker.
It is a Behringer Eurolive B912 NEO, schematic is attached.
It came with a power problem, last time it was used, it was powered by a diesel generator, so AC source wasn't very stable.
Last time powered on (with proper power source), I heard a loud explosion inside, D7 and D9 are exploded and jumper J1 blowed.
Bridge D63 is not shorted, T1 and T5 neither.
Could you help me find the problem ? What could be potential problems ?
Thanks in advance !