by Rob-NYC »
Wed Jan 07, 2015 10:44 am
Preston, that was most likely done by RJB in Mundelein, Illinois. they did a number of hack-ups like this to machines they sold for commercial operations back in the late 80's and 90's. The credit unit is the least troublesome section of those boxes so it seemed to be solution looking for a problem.
You can inquire about getting service doc's from them...good luck with that

. In 1994 I bought a 201 from a closed retro location. It had been modded by them with component values obscured. They refused to provide any data and their suggestion was to pack up the defective selection receiver and ship it back to them for service. My response was "bullshit'. I stripped out that unit and reconstructed it with my own set of hacks.
If they are still in business they might be more cooperative by now given that the market for that sort of mod has declined.
If you can't get a working module, you will have to obtain the proper credit unit and rewire the unit as, or close to original. I can send a high-resolution scan of any of the 200's schematics, but you'll have to examine the unit to see what if any important sets of contacts have been removed.
A couple of shots of the insides would be helpful here.
Rob/NYC
"If we believe absurdities, we shall commit atrocities" -- Voltaire