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U22 Error message

Is the U22 the security chip, do you still have this chip from your old board, you need the security for the cpu to operate
 
Yes as Banzaipinbll says ,you have a wpcs security board used in machines with a U22 security chip (which should still be in your old board) and you need to take it out and insert into your new board. if you have a machine that does not use that chip (security chip) you have purchased the wrong board. Can you tell us what machine it is then we can help

cheers
Keith
 
The switch matrix column drivers are routed through the security chip so you wont get far without it if its a wpc-s game. If yours is missing or broken i can help create a new one with matching serial number for you. Hopefully though its still in your old board though and still working
 
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