Pioneer A-8600X Stereo Amplifier Schematic request

Dears,
I have Pioneer A-8600X Stereo Amplifier with speaker relay switching issue.
Please refer to the attached images.
I have tried to find the schematics of the Amp but no luck so far.:sad:

Can you please help me to find the schematics of Pioneer A-8600X ?

Thanks In Advance.
 

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