Juma 100D Clone Broken. Please help.

[Manuel Moreno]

For the past few days, whenever I connect my Juma Clone Amplifier to the power supply, it behaves as if there is a short circuit and won't turn on. 

This short circuit causes my power supply to shut down (go into protection mode).

What could be causing this?
I need urgent help.
Thanks in advance.

 EA7CN Manolo

[ea5jxp]

It is likely that one or both MOSFETs have burned out. Try disconnecting and isolating the output stage and check if the amplifier powers up. Of course, you will need specialized equipment and technical knowledge of electronics.