Sold Dmd (with issues)

[J.C.Rox]

So this came from Europe in a FG. It had a couple of lines stuck on and a dot that was off. I sent it to Phil at PH along with another one that I blew up. Phil fixed the other one and has advised me to flog this on here as it's fixable in the right hands but not economical for me to pay him to. He has thrown in a 'block' that will fix it but it's a slightly different colour when the dmd is off...see pic.

It appears to have some extra circuitry that isn't on the usual modern stern dmds. It was powered from a hack but also seemed to work in my Tron's 5v.

Phil estimates it's value at £75 so that's what I'm after....

Cheers

 

[ronnie63]

What did Phil diagnose as the problem? surely not that block as it's plug in!

Ronnie

 

[J.C.Rox]

I think the block is for the missing dot and the permanent lines require some trace work but maybe @philpalmer could help me out here?...

 

[cooldan]

i thought maybe it needed all 64 dots soldered and that's why folks tend to say nah replace it?

 

[J.C.Rox]

Naa you can see from the back it's alot less per square...but I have zero clue how it all works!

 

[ronnie63]

I'm guessing some or one of the SMD chips are bad? if it was compatible with Bally Williams I would be a buyer @£50

 

[Paul]

16 per segment. Have to say i am tempted, however more worried about the other issues besides the dead dot!

 

[J.C.Rox]

16 per segment. Have to say i am tempted, however more worried about the other issues besides the dead dot!

I'm happy to post it out for you to have a look at before committing...

 

[philpalmer]

The fault that causes stuck on lines is nothing more than a single shorted LED on the block.. so if you change that block or whichever block has the shorted LED then it will cure (most probably) the lines being stuck on.

 

[Paul]

I'm happy to post it out for you to have a look at before committing...

Many thanks for the kind offer, however will pass as i'll only make a mess of it - why not throw it at @lukewells to work his magic???

 

[kevlar]

Don't the blocks just lever off/plug into sockets? I.e. No soldering? Thats how they were on my SM display when I changed a segment with a dot out.

 

[philpalmer]

yes, i would have plugged it in but with that stupid not seen before 12v in i couldn't be bothered messing with it.

 

[ronnie63]

It would purely be a punt for me but let me know your best price?

Ronnie

 

[J.C.Rox]

It would purely be a punt for me but let me know your best price?

Ronnie

PM sent

 

[J.C.Rox]

It would purely be a punt for me but let me know your best price?

Ronnie

PM sent