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Marantz PM72 failure; Schematic ?

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jean.la44

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marantz pm72

Hello;

My nice (old) Marantz PM72 has a failure. Il looks like the issue is in the powering. Indeed, at least all the voltage at the output speaker relay has the same 60v voltage!

Does anyone has a PM72 schematic ?

Thanks a lot;

jean
 

Maybe this helps You, some schematics for the PM75 model
 

Thank you for the schematics that you have scanned and transmitted.
May be i will enjoy again my old amplifier thanks to you... :)-)

Best regards;

Jean
 

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