(Topic ID: 135967)

Is this DMD fixable?


By Gruntis

3 years ago



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  • 16 posts
  • 7 Pinsiders participating
  • Latest reply 3 years ago by ChrisHibler
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#1 3 years ago

Just got a new pin delivered and found some lines partially out. Anyone out there have any experience with this.

The full line out is just the test line, the two partial lines are the problems.
Any help/ideas would be great
Cheers

DSC_0204.jpg

#2 3 years ago

Check the thin ribbon going to them. You might be able to solder a break or crack, or carefully use an electrical conductive adhesive.

If it's inside the glass, no.

LTG : )™

#3 3 years ago

When the display test completes, does it say "RAM TEST OK"?
This looks more like a Dot Controller RAM issue to me.
Examples: http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Failed_RAM
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#4 3 years ago

Will check both, cheers

#5 3 years ago

try the display in another game to be sure. All 128x32 dmd's are basically the same and will work in any dmd game of the same sized display.

#6 3 years ago

Swapped out the display and the problem followed the dmd so something is up with it. What I don't get is that its not the whole line just part of it. I would have though if it was a solder issue the whole line would have been out??

#7 3 years ago

Just had a sent back. Put it in another machine and played a game. At the end of the game got a match and the knocker went off. As soon as the knocker went off a horizontal line went out - all but one dot. No happy.
Thinking on taking this to work and reflow all the connections with the hot air solder.

#8 3 years ago

If it's your Fish Tails I would swap it out with the color dmd. If it's The Flintstone's I would swap it out with a color dmd and play with the color rendering. Either way Color DMD all the way http://www.colordmd.com/

#9 3 years ago

Got the colour dmd in a stern so don't have the cables to swap it out to the williams otherwise it's a great idea. I've priced the cables from colour dmd and the postage is a killer to Australia, it's about $70. I guess I could try knocking up a set, just have to see what's needed.

#10 3 years ago

The saga continues. The display I put in my JM to replace the faulty was working. I just now checked it and it looks like this

DSC_0214.jpg

DSC_0213.jpg

#11 3 years ago

Reseated the cables and fixed the second issue. I'm thinking the original display is on its way out.

#12 3 years ago
Quoted from Gruntis:

Reseated the cables and fixed the second issue. I'm thinking the original display is on its way out.

Yup. When it did the same thing in a different game, that was evidence that the display itself has failed. I agree that it's odd that only part of a line is missing. Ouch.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The new place for pinball repair info

#13 3 years ago
Quoted from Gruntis:

Got the colour dmd in a stern so don't have the cables to swap it out to the williams otherwise it's a great idea. I've priced the cables from colour dmd and the postage is a killer to Australia, it's about $70. I guess I could try knocking up a set, just have to see what's needed.

Are you saying it's $70 shipping for the cables alone? Ship them to me and I'll send them to you for $15. Pm if that helps you at all

#14 3 years ago
Quoted from PinballBulbs:

Are you saying it's $70 shipping for the cables alone? Ship them to me and I'll send them to you for $15. Pm if that helps you at all

I should take you up on your offer and probably will but I'm really struggling not to give in and just get the color dmd. Though with our Aus dollar in the toilet thats an expensive thought.

#15 3 years ago

On my DMD just the bottom line (horzontal line) is out.. Does anyone know if there is an easy fix to it?

#16 3 years ago
Quoted from pacman11:

On my DMD just the bottom line (horzontal line) is out.. Does anyone know if there is an easy fix to it?

If you can get to the conductor that feeds that line, it's hit or miss on being able to use silver solder, conductive pens, etc.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info

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