Yamaha P4500 and P2700 service manual / schematics

[fenugrec]

Hi all,
would anyone happen to have the service manuals (or just
schematics, any info is great) for these two audio power amps:
Yamaha P4500
Yamaha P2700

I'm getting good at tracing PCBs, but I'd rather have the
original, error-free and readable diagrams ...

Thanks !
CSB

[sunan]

i need referens of ps amp yamaha