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DMD not displaying correctly


Clint

Question

Hi everyone,

My DMD on LW3 has started doing something wierd lately. When you turn it on now the info on the bottom of the display is all messed up.

Where you normally have player 1, ball 1 and freeplay its all a mess. When you play the game its perfect for everything else in the game.

Also noticed today that halfway through a game that player 1 and ball 2 came back but freeplay was missing.

Any help would be greatly welcomed as i would like to fix it.

Regards Clint.

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+1 for checking the cables.  I have developed a good feel for these headers having "too loose" a grip.  ( It is amazing to feel how tight a new header grips those pins )

Another +1 for RAM.  The DE V3s  sometimes develop bad video memory. This is often seen in the same region of the display whereas a bad cable can cause glitching all-over.

 

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The small ribbon cable felt quite loose, you can pull it on and off really easy, did that a couple of times and turned the machine on.

it has 4.98 volts at the plug going into the board.

all the display is working again now, hope this was the fix.

Thanks for the quick replys.

Regards Clint.

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On 26/09/2021 at 3:46 PM, Clint said:

The small ribbon cable felt quite loose, you can pull it on and off really easy, did that a couple of times and turned the machine on.

it has 4.98 volts at the plug going into the board.

all the display is working again now, hope this was the fix.

Thanks for the quick replys.

Regards Clint.

Hey Clint

I d go ahead and buy another ribbon cable. It will do it again. Replace it and probably be right for years again. Not that expensive. 

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