CEI 906 Turbo MUX error

[nutsfercoinop]

I have a CEI 906 Turbo poker/blackjack machine (5 games) that has a MUX error that will not go away. From reading previous posts regarding this problem it is necessary to go to OPTIONS to remove this error.
My question is....HOW do you get to OPTIONS? The game currently coins up, and deals out cards, but the buttons to hold cards take a long time to light up. The machine puts up credits and will pay out, but only 10 coins at a time when pressing the collect button. Also, when I go to the learn mode, I can only move the cursor up or down, but am not able to change any thing. So problem one is the MUX error removal and problem two is getting the learn mode to function. Also when a game is over $1.00 appears in the center of the screen. I want to change that to either 5 cents or 25 cents.
Please help! Thank you.
Eprom #1 V500.05 MS 10
Eprom #2 V500.05 PGM
Eprom #3 V500.03 UTiL
Eprom #4 V500.07 BJ

[Chris-socal]

Hello and welcome to NLG.
I don’t have any experience with the multi game CEI machines, hopefully one of the other members knows more.

I will share a few things I know about CEI machines. I assume this applies to 906 boards too. Maybe not.
Before I list my things I want to say that there is at least one manual for CEI in our file system. You need to be a contributing member to get access, even if you make a one-time contribution of $10 you will get 30 days access. I highly recommend it, I use our files all the time.

1. I have a CEI machine that pays out 10 coins at a time, not sure if it can be changed…try holding the button.
2. I once heard that if CEI machines get locked up you can swipe your hands across all the buttons like a child swiping piano keys…as the machine is booting. Doesn’t hurt to try.
3. Im pretty sure the manual says how to get into setup. Usually it involves turning the reset key during boot up or if there is a reset button.
4. On CEI machines you can carefully remove the memory chip and ground it on a piece of tin foil for about 30 seconds. Should reset anything being held in error. If you are not literate in handling or removing ICs watch a YouTube video first. Handle with care!

Please keep us posted.

Chris