Yamaha RA-70R Power amp schematic

hi,

i'm looking for a schematic diagram for a guitar/keboard amp with leslie speaker.. mainly the Power amp section.

on switching on the rail fuse blows and a huge humm is heard ,,

also r23 is burnt and a 100ohm is burnt too..

thanks any help will be appreciated.
 

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  • ra-70r pa.JPG
    ra-70r pa.JPG
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