Asteroids Deluxe hum?

GaryMcT

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My Asteroids Deluxe hums out of the speaker. Here's what I've done so far:

1) unplugged the light fixture, still hums
2) rebuilt the AR board, still hums

What would you try next?

Thanks!
Gary
 
Mine does this too, and I think it's is a pretty common problem. I have read other threads on this, but found no resolution.
 
Mine has hummed with two different PCBs. The one that is in there now is a known good one from quarter arcade, so that probably (??) isn't the problem,
 
Check the resistance between the ground points on the Audio Regulator board and the game PCB, it should be 0 or near as possible, if it's built up a few ohms this can cause sound problems. I had this issue on my Asteroids Dlx cab and it was caused by a build up of resistance in the cab wiring. I ran a jumper from the AR board to the PCB and it's been hum free ever since.

HTH

DanP
 
I just replaced the fuses in my Jr Pac and it no longer hums. I dont understand it I just stopped asking questions a long time ago...
 
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