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Fault
Amplifier would not power up.

Initial inspection of the Amplifier showed an attempt had been made to repair the Amplifier, no original parts had been fitted.

The following had to be replaced to return the Amplifier to as built status.

Power input protection fuse T1.6 Amp
Transistor 7266 2SC3181N, T268 2SA1264N
7262 2SD2033, Resistor 3306 1 ohm.
Speaker protection relay 24 VDC DP/CO replaced.

Note the main Amplifier PCB and rear panel must be screwed in place to complete the grounding circuit, failure to do so will result in damage to the Amplifier.

Bias set up for each channel 14 millivolts.

Amplifier fully tested correct operation.