A paper clip fell into the left side (grill opening) while the amp. was working, and now that channel one is dead. I open the unit to recover the clip and try to find any blew component, but the only thing I found is a red led light "on" that is marked "Fault" on the main board (043400-3). Channel two is working fine. Does any one have an idea if this can be worthed the cost the repair? This amp. cost me $380.