Dmd issue

[Wintonmartin]

Only just set TAF up and the dmd has an issue. I dont think it's the dmd so maybe the roms or connection issue?
Advice greatly appreciated.

 

[JAG555]

You have probably already done it, but check the connectors in the back of the DMD and also test the DMD, just to be sure, but I agree, doesn’t look like that’s the issue. Then move on to any seated chips on the DMD board and reseat them. That’s about as far as I can take it.

 

[Ped]

looks like a bit of ribbon cable wackiness. tried reseating it at both ends?

 

[mufcmufc]

Reseat all the ribbon cables (off and on a few times each to clean the connection)

 

[Wintonmartin]

I've not tried anything yet. It was late and I was being lazy. Will give them a good clean and reseat them.
Thanks for the advice

 

[pinballmania]

Can also be the square socketed chip on the cpu. With power off, push the chip home with your thumb all round the edges until it stops 'creaking'

 

[russdx1]

That's a bit weird, these displays clock the dot data in per row serially so having a solid dot every 8 bits is a bit strange (usually see stuck rows not columns?) Id reseat any display ram as well (if socketed).