Crumar Musical Instruments User Group.

just recently i got offered a crumar 2003.
it was about to be sent to trash, after 9 years of no use. 
a friend tipped me, and i rescued it... damn heavy (read that its weights 155kg!)...
plug power in and it works!!!! 

some problems yes, but sounds wonderfull!!! 
i want to try to repair it, so i need help! does anyone has a manual/ schematics??
please let me know

hugo
portugal