Boss PD-1 in terrible state

[hawkeye2u]

Anyone out there with a schematic for this pedal
I picked it up at a local tip for $2 , battery compartment is corroded but not much else!! a few corroded wires etc  :cry:
However to fully restore this pedal I need a schematic
Please anyone
:roll:
I do electronic repairs for a living but things are so much easier with diagrams
Hawkeye2u@bigpond.com