IGT Game King Multi-Denomination frozen screen

[gardenajski]

I just picked up a  IGT Game King Multi-Denomination Video Poker Machine. I bought it fairly cheap because previous owner didn't have time to fix. When I power up the machine, a game comes on the screen but will not let me do anything. Remaining cash shows $0.09. When I turn the reset key I get a blue box that reads "Attendant Menu" "Pending Tilts"  "None".
It will let me enter the Administrative Functions, even review the last 25 game, but when I exit that screen, I am back to the game that came up when I powered up the machine. I checked the battery, it is a 3v and the volt meter reads 2.8. Does anybody know a solution to this problem. Any help would be greatly appreciated.

[Badbaud]

80% of the time it is a door switch or door optic that is not working.

Is there a "door open M" message on the screen?

Or a "door B"?

It could also be a bill acceptor door problem, make sure it is closed all the way and the can is seated all of the way in.

If there is a small micro switch inside the bill validator door you can cut the wires going to it and wire nut them together.

[gardenajski]

I am getting a "Door Open M" message on the screen. I checked the switches and they seem to be connected. Could one of them be faulty? Is there a way to check them or maybe by pass them?

[Badbaud]

If there are two switches one is for the service light that lights the inside of the machine when the door is open, sorta like a refrigerator light.

The other switch is the door switch.  First I would try pulling off the spade connector on each of the switches terminals one at a time and reinsert them.

Sometimes a good electrical contact between a connector and a terminal can fail over time, Simply re-seating the connection can fix that.

If that doesn't work try using a alligator jumper and jumper across the back of the switch and see if you are allowed to play a game. After one game the door M should disappear.

If neither of the switches are door related you may have door optics.

[Harp]

Also remember that the Belly Glass Door may also have a Switch which is also part of the Main Door circuit

[gardenajski]

Thanks for all your input. It was the main door. I thought maybe the micro-switch was bad so I switched them out with switches from another machine. That wasn't it. So, I started following the wires. I noticed that the two wires split up with one going to a connector with another wire and the connector was jumped with a small piece of wire. I traced the wires on the other switch and noticed they did the same. but on the connector there was no jumper. I put a small piece of wire in it like the other and problem solved. I was giving up on the switches being the problem and looking at the boards and software as the culprit when you mentioned the 80% that turned me back to the switches. So I got this machine for a song and it works perfect. Thanks again for all the input and quick responses. This curbed all the frustrations that seem to snowball on me every time I attempt these type of repairs. Have a Wonderful Day!