hifi engine

SONY TAN-5550 V-FET Service Manual

Well, I got my hands on two SONY TAN-5550 V-FET amplifiers.
Turns out the previous mad scientist decided to labotamize them and bridged them to be a single-channel mono block of 100W RMS.
The original state was rated at stereo 2-channel 50W RMS.

I'd like to restore them, but....need the service manual.

......anybody ??!!