(Topic ID: 268727)

DMD one line erratic

By yaksplat

4 years ago



Topic Stats

  • 8 posts
  • 4 Pinsiders participating
  • Latest reply 4 years ago by yaksplat
  • Topic is favorited by 1 Pinsider

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#1 4 years ago

on my White water i have a single vertical line on the DMD that is erratic. The dots that are out are not consistent when going through the tests. That means the dmd itself is good and this is caused by a board issue. I've re-seated the cables and there was no change.
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#2 4 years ago

Looks like a DMD issue to me. Have you tried swapping your DMD with one that you know works? Can you use the one out of your Breakshot and see it if does the same?

#3 4 years ago

That kinda looks like a RAM issue on the DMD controller board. Let the display run all the way through the display test. At the end does it say 'page error'?

#4 4 years ago
Quoted from PinballManiac40:

That kinda looks like a RAM issue on the DMD controller board. Let the display run all the way through the display test. At the end does it say 'page error'?

now that you mention it, yes it does.

#5 4 years ago
IMG_20200515_183437 (resized).jpgIMG_20200515_183437 (resized).jpg
2 weeks later
#7 4 years ago

I would install a socket while you are at it. Will preserve the board and make future replacements much easier.

#8 4 years ago

Oh, I should have mentioned that one as well. I always socket any chip replacement when possible. I had purchased the minimum quantity of every socket size from GPE to get the quantity discount, so I've got sockets for days now.

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