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Sharp Optonica SM-4000 or SM-4545 Service Manual

I just got a Sharp Optonica SM-4000 amplifier. It's working great but i want to recap it and adjust the bias and idle current. From what I understand the SM-4000 and the SM-4545 are identical (the SM-4000 was for the European market?). Can somebody provide me with a service manual for the SM-4000 or SM-4545?

Thanks in advance!