have a williams pin dmd is nice and bright no burn but it does have some ghosting , upon start up it does not seem present but give it a minute or two and you will see a shadow behind the letter or numbers , its not Horrible just kind of annoying , any fixes any one can pass on to me
Check the voltage at the connector on the DMD. Sometimes, having a voltage off can cause ghosting.
From Clay's repair guides..
Pin 1: -125 volts (-110 to -130 volts)
Pin 2: -113 volts (-98 to -118 volts)
Pin 3: Key
Pin 4: Ground
Pin 5: Ground
Pin 6: +5 volts (4.9 to 5.2 volts)
Pin 7: +12 volts (10 to 14 volts)
Pin 8: +62 volts (58 to 68 volts)
If you have another WPC game that shares the same DMD Controller Board, swap that in as a quick test.
If that's your problem, The Coin-Op Cauldron will repair your board for a $50 flat-rate plus shipping (assuming no previous repairs, missing components or physical damage).
Quoted from CASTHOF:Bumping the post - I have a HS2 that is ghosting pretty bad. DMD control board? Is that the best route?
Take a look at the back of your DMD control board, and see what it looks like (I'm assuming crispy).
I would recommend the Rottendog replacement.
50$ to repair old board, or about 80$ for a brand new redesign that supposedly solves the overheating issues.
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Deltona, FL