DBA Coin Meter Help

PinFixin

Well-known member

Donor 2013, 2025
Joined
Jan 24, 2013
Messages
1,436
Reaction score
230
Hey all,

This is probably an easy question, but it's 10:30 at night and I've worked all day. lol

I have a game with a DBA and the coin meter isn't advancing at all. I can test for voltage at the meter, test for continuity between the game pcb and the meter itself, but how do I officially determine the meter is bad, or the game pcb could be bad? Is there a way to use a logic probe and probe the ground side of the meter when it is actuated? Would it show low/high etc? I wanted to try to troubleshoot it before just hooking up another meter to see if it works or not.

-Pat
 
Depending on the game, it'll either be ground switched or hot-switched. Likely it's ground-switched. (But, check game schematics to be sure!)

You can disconnect the leads and give the counter a pulse of +12vdc - if it advances, the problem is in game or writing. If it doesn't advance, then the meter's dead.
 
That's what I was thinking. I could leave the +5 hooked up and then just pop the ground on the ground wire and see if it advances
 
Back
Top Bottom