Marantz PM6005 Amplifier Repair (With Audio Tutorial)

Fault 1
Amplifier switching to protection mode.
High DC offset measured on the left channel, Q6027 - 2SA1266 found to have gone low Gain. (Component Tester Required)
Transistor replaced fixing the issue.
DC offset for the left and right channels set to 0 millivolts plus and minus.
3 millivolts.
Bias for each channel set to 20 millivolts.
Fault 2
Optical input socket damaged, replacement fitted part number JSR 2124.
Amplifier fully tested working correctly.