schmeatic Focal car amplifier LE 2.150

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Hi
I just put to reuse my Focal 2.150 LE car amplifier.

Its one channel is clipping pretty badly, other works like a charm.

I have spent over 50 Hrs trying to locate the fault and redraw the schematic but the problem has not been solved. i have partially decoded the schematic but i think i need pretty experienced advice to help solve the clipping problem.

The Vbe is working fine feeding a darlington TIP 102/107 which in turn drives a pair of TIP 35/36c help needed.
regards
 
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