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Author Topic: CMOS CHECKSUM ERROR  (Read 7026 times)

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Offline rokgpsman

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Re: CMOS CHECKSUM ERROR
« Reply #20 on: September 02, 2015, 05:54:00 PM »
reversed photo in case it helps
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Offline cowboygames

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Re: CMOS CHECKSUM ERROR
« Reply #21 on: September 02, 2015, 05:58:56 PM »
The shorted input could well be a bad IO card. The door open M is a different issue related to the door optics or the belly door swich. The belly door switch, which is tied into the main door optics, is located in the upper left corner of the belly door opening. You can open the belly door by pulling on the knob located next to the main door release lever. The belly door switch can be bypassed by simply removing the wires from it, shorting them together and insulating them with a wire nut, electrical tape, etc. This may not fix that door open M issue, but it will eliminate the possibility of it being a problem and it's not needed in a home environment in any case. Same goes for the cash box door switch

Offline Timarich8

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Re: CMOS CHECKSUM ERROR
« Reply #22 on: September 02, 2015, 06:31:11 PM »
Is there a place where I can take the I/O card to see if it's working?  Or do I just buy a new one and see if it changes anything?  I think I've bit off more then I can choose with this machine. LOL

Offline rokgpsman

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Re: CMOS CHECKSUM ERROR
« Reply #23 on: September 02, 2015, 06:39:54 PM »
Sometimes a problem like this seems like a major ordeal but usually even novices or first-time owners get things going, with help from others. On the plus side you'll learn much more about your machine and be better informed on how it works. Even the slot people in casinos had to learn when they first started out. Hang in there, most likely all will be fine soon.

From what I know the Door Open M error is a reference to the Main door (instead of the cash box door or the door to the overflow compartment in the slot stand). The Door Open M error is often caused by either faulty door optic sensors (bad or misaligned), or door switch. And wires to these parts can be broken or pinched also. Obviously the casino doesn't want the machine door to be open and allow access to money by unauthorized people so they require that type of sensing. It can be a pain to home owners until resolved.

If you happen to live near a slot machine dealer or service place they could probably help, you'd have to call to see what they could do and what the charge would be. Also, if someone in your area has a similar machine they could help by trying your I/O boards in their machine, or their I/O boards in yours. And you could send the boards out to a shop to have them tested but that might be more cost than just buying a good used board for a lower cost.

You could post your general location here (be careful to not say your exact address except in a private message) and if anyone on NLG was near that city they might offer to help. To contact a person privately look over to the left of one of their messages and click on "Private Message".


To identify the I/O board specifically (and any other circuit board) you can look for an IGT part number written on it somewhere, often near one corner but can be anyplace. You can also post a picture of the board and others here can help id it. That way if you decide to order one you'll know the correct board to get.


Also, I looked back thru your messages but didn't see exactly what your machine model is. Can you post a photo of the entire machine from the front and also the idplate (usually on right side below handle) that clearly shows the model number? That will help others to make sure you get the best help.
« Last Edit: September 02, 2015, 07:10:05 PM by rokgpsman »
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Re: CMOS CHECKSUM ERROR
« Reply #24 on: September 02, 2015, 06:47:10 PM »
There's really no way to test an IO card, caveat here is that they are pretty inexpensive. You have 2 on the door, you could try removing them one at a time, turn the machine on and see if the message changes. There's also one mounted to the housing your MPU slides into, smae deal, you could remove it, turn the machine on and see what happens. You can't hurt anything by turning the machine on with any of those cards out, just don't put them in or take them out with the machine on

 

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