I am installing the Speedball kit.
I need to do the small board test as specified on page 18 in the manual
I am supposed to connect the negative lead of the volt-meter to terminal 12U.
I can not find the terminal 12U on the board and it is not mentioned in the Speedball manual. I assume the information can be found in the Crack manual, but I bought the Crack used I did not get a manual with it.
Where is terminal 12U located?