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(Topic ID: 303581)

Help !!!! DMD issue?

By Rkrall

2 years ago



Topic Stats

  • 5 posts
  • 5 Pinsiders participating
  • Latest reply 2 years ago by Morgoth00
  • No one calls this topic a favorite

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#1 2 years ago
OP
 
RPK

Rkrall

Pinside+ Frequent

US Plum, PA

7y 35,400 30 3 6

Are there symptoms a sign of a bad dmd or bad cable/ board?

Any troubleshooting tips would be great!!

Already reseated cables from dmd and board.

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#2 2 years ago
 
JLD

JayDee

Pinside+ Member

US Elk Grove Village, IL

5y 114K 5,512 4

Not sure what cables you reseated, but this seemed to fix a similar problem here:

https://pinside.com/pinball/forum/topic/dmd-display-issue-vertical-lines-#post-6529585

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1 week later
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#3 2 years ago
 
???

Sububer

Inactive member

CA Saskatoon, SK

2y 14,400 8 2

I just had a similar looking problem tonight, and reseating my ribbon cables solved the issue. One seemed to have shaken a little loose, and I suspect that was the issue.

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#4 2 years ago
 
???

pins4u

Pinside apprentice

BW Gaborone

3y 34,400 1,037

Replace the cables. They are over 30 years old and most likely have internal corrosion.

Re-seating them will probably work but it isn't a fix. The problem is likely to return.

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#5 2 years ago
 
WAD

Morgoth00

Morgoth's Mods

3y 77,550 937 9

Last time I had a scrambled dmd, removing and reseating IC chip fixed it. Try doing that with U6

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