Fruit Machine Chat

Hi
Got a puzzle
Double dragon by extreme with epoch mpu and electronic meters.
I have not worked a while on these machines but something i puzzling me and can not remember for the live of me
Any body got an idea or experience of this fault "error code 6 general meter error "on a electronic meter machine?
I Changed all boards already but not the main one as i have not got one at the moment but the machine does not stop going in alarm mode

thanks

have you tried changing the sec meter as this is a common error

sec meter?

The meters on this machine are on the main lcd when door is open

thanks