Yamaha JX50 Need schematics

[kd7ura]

I just picked up a Yamaha JX50 from a friend who got it from a friend for free.
its in good condition my budy said the distortion isnt working
any ideas on where i can find a schematic for free so i can get her working again.

Thanks

[kd7ura]

Got the distortion push/pull nob working but the hum is sucking.
trying to figg out how to fix, im new to playing but can hack a bit with the electronics, after its working im going to start opening up a curtis mathis sterio console to build a 2/12
sterio amp. "this sit is giving me bad ideas"

[vintagekiki]

http://www.guffprod.com/2009/12/30/yamaha-jx50-service-manual/

[kd7ura]

Thank you, Thankyou Good Carma to you,
now to make the hum go away, thankyou