I want schematic for Denon PMA 1520

[Fjatle]

Hi!

I am looking for service manual (shematic is the only important thing here)
for the amplifier Denon PMA-1520.

I did find one on zarekmanuals.com, but this is an old amplifier, and I am only trying to fix this one for a friend. zarekmanuals.com demands some cash for it (not much though), but since I am only doing a favor, and its an old amplifier, I want it as free as it gets..

Can anyone help me out here?