Qbert gets noise on screen when sounds happen

jerryme

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Ok so I finally got my Qbert to play for the 1st time since the day I bought it when I played 3 games and the power supply blew out the sound amp. Well I got all of that fixed, Now I just have a problem that when ever a sound happens while playing I get random noise on the screen any idea what would cause this. The game play is fine, I got all of the sounds and the kicker works great. Thanks for any advise. PEACE
 
Just had the exact same problem last week. If you disconnect the yellow ground straps right above the filter board on the back door, it'll fix it!
 
It has something to do with the power supplies being rebuilt. Once you rebuild them, they do that... I looked it up on the forum and found others with the same problem, who fixed it that way... so I tried it, and it worked. There's 1 bolt right near the hinge on the backdoor where the video ground ties into the yellow strapping from the filter board and the cabinet. Disconnect all those and the problem dissapears.
 
Yup - Pulled the Yellow strap and the screen looks great - THANK YOU!!! It sounds better also!!! I Finally played a game and it looked and sounded right. THANK YOU!!!! Peace
 
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