[GreenKeys] Dovetron MPC-1000R schematics

[Greg Miller]

Hello all,
    I have a Dovetron MPC-1000R (serial number below R150) that needs some repair.  There is a scorch mark where there once was a resistor (I think) and I don't know what value to use.  There have also been some modifications done that I'd like to examine to see if they need to be removed.
    I have a copy of the operations manual for this unit (thanks again, Doug!), but no schematics or parts layout (I do have the parts list though).
    Also, are there any modifications I should do to this unit?
    Can anyone help me out?  

    Thanks and 73,
    - Greg K2GTM