Besides unplugging the amp, just make sure to bleed off all capacitors, if they are not already drained off with resistors across the +- posts/leads . Use an insulated handle screwdriver, or insulated wire with both ends pre-stripped 1/4", to short all capacitor leads just to be safe. That *will* resolve any "stored" shock potential.
I assume you know how to measure a bridge rectifier or discrete diodes, etc. If not, report back or google it. Very simple.
Frank
I assume you know how to measure a bridge rectifier or discrete diodes, etc. If not, report back or google it. Very simple.
Frank