Quick Trouble Shoot - Aliens PCB = Sound and Static

rainman154

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Quick Trouble Shoot - Aliens PCB = Sound and Static

Any suggestions on this.
Aliens game.
For some reason the sound comes and goes... mostly goes off.
Every time the "Aliens" logo comes up on the screen, there are two static lines that go across the screen and then they both go away.

Think it is the board? Any simple fix? Should I reset the chips?
 
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Are you saying there are static-looking lines (almost like interference) that appear near the top of the screen when the screen flashes white before the logo appears? I believe my PCB does the exact same thing.
 
Audio that comes and goes on Konami boards is usually the volume pot, with the board powered off (for the sake of your hearing), turn the volume knob through its full sweep multiple times, then repeat while applying slight downward pressure on the knob, then repeat again while pulling slightly on the knob. That should chase the fault away for a fair while.
 
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