dot matrix display

TonyH

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Donor 4 years: 2011, 2015-2017
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I was picking up a paperboy yesterday at a guys house and played a game on his Popeye pin I noticed the display seemed to have a wave similar to a hum bar on a arcade game. Any ideas
Thanks Tony
 
Could be a couple of things....The power supply section of the display driver board.....or the dot matrix is dying.

Edward
 
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