Maybe you knocked loose some connectors from the coin door that plug into the little board on the left of the door? I'd start there... Must be something simple.

Battery damage on cpu ?

LTG : )

The black goo may be some marking done using a permanent marker, to indicate what connector goes where.

You could try to trigger the switches directly on the CPU board. I think its J205 that goes from the cpu to the coin door interface.
Try triggering the switches using a spare diode or wire. If it does not work then probably the direct switch circuit on the cpu board is bad.
See page 3-3 in the manual.

Or chip U19 on the cpu board is bad. Or worse, a trace *underneath* U19 is bad.

Ground wire needs to be on the coin mech ... it breaks off easily trust me .... ive spent hours trying to figure y the switches weren't working before lol.20160704_130423_(resized).jpg

J205_menu-button.gif

Yes, always handy to use this method to find out in what direction to search. From here you know it is either the wiring/buttons or the CPU-board.

Not to long ago I was asked to put a Demolition-Man on freeplay but leaking batteries had destroyed some traces of the direct switches around U16 inputs.
Here I had still the possibility to 'ground' the exits of U16 and could still change the settings in the machine. (U15 was next option)
The CPU-board was soon to be replaced for a P-ROC version of DM on Steroids but till that time it was playable.

dir-sw_alternative2.jpg

Yep i figured thst wire was the issue .... glad to help and your good to go again