@Kal EL
I swapped some of the electrolyte capacitors and tantalum capacitors
My system had no ram, but with ecks one i was able to fix that - see post #14 from Flottmann1
I had some problems with the wires from the transformer to the mainboard and changed them.
At last i had to copy the eprom.
Maybe i can repair your system - send me a pm
( sorry for my denglisch ).