Searching Boss Vf-1 service manual

[deepMago!]

Hi,
I'm searching the service manual for Boss Vf-1 multiFX. I need to modify the power supply  for use in my new all-in-one pedalboard.
I see it use a particular component to generate +5v (a DC-DC converter) and 7812-7912 for analog audio path I think. But i would be sure how everything is connected.
Googled around this afternoon and find only one link not working.

Thank you