NAD 390DD amplifier protection mode issue

[zpvd]

Hi,

I have NAD 390DD amp, that recently enter to protection mode. (L+R channel protection) and turn off.

Maybe someone familiar with this situation, and can tell me what to check?

Yesterday i disconnected J1002 connector on the Main board, and reconnected ,and the amp started correctly, this morning the protection mode returned.

Thanks.

 

[zpvd]

SOLUTION:

Found a solution for this issue, the capacitor C155 on the AMP board was faulty, replacing it solved the problem.

Maybe this can help someone in the future.