Update:
last night I read this old thread (
/nlg/index.php?topic=4226.25)
so I went and look a little more...
I pulled the power supply and looked at it... it definitely looks old... but there are no obvious signs of failure... and there are no bulging capacitors or burnt spots...
when I put everything back together... I wiggled it around to see if it was the tabs mentioned in the thread...
at some point it started making noise... and the lights to insert a bill came on... I put in a $1 and it took it... added the 4 credits...
but then it went right back out and would not take any more... I checked the cash box... the bill was still sticking out about 1/2"... so I'm guessing there was a jam...
I cleared the jam... and it still didn't come back on...
I noticed that when I wiggle the wire connectors where it plugs into the validator it would sometimes come to life...
I did get it to take 1 more bill.... but basically same issue...
part of the problem could be that the tabs that let you screw in and secure it are missing... so all I can do is push it in...
but I don't see any type of switch that would indicate it was in or not... so I'm guessing the issue is around the wire connection area...