by Ken Layton »
Thu Mar 07, 2013 6:49 pm
Is it possible to unbolt the bill acceptor from the machine and unplug it so you can bring it out into the light for a good look-see?
Should be just four 8-32 nuts (11/32" nutdriver to remove them) to remove that hold the bill acceptor to the machine.
Once it's off, you should be able to find more labels with a model number and operating voltage. Plus, then you can see the connector at the end of the cable where the bill acceptor plugs into the machine harness. Ardacs of that period would have had either a single white 9 pin connector or a single 12 pin white connector or two connectors: a single white 12 pin and a single white 4 pin.
Just judging by the already posted pictures, I think you have an "upstacker" style that is mounted upside down to sort of make it a downstacker style. I might be able to suggest a possible Mars model number as a replacement.
On the main board inside the Ardac is a bank of dip switches that select common operating features like which denomination of bills to accept, pulse length, and number of pulses per dollar.