early AN DE/williams sys11 power supply needed- not working is okay too!

[Nug]

i have a working 'small DMD' DE powersupply as trade ? otherwize was going to modify for no HV and go pinled....thoughts?

[humpalot]

Personally I don't like the look of the LED displays.  I've tried both pinled and pinscore.

[Strangeways]

Personally I don't like the look of the LED displays.  I've tried both pinled and pinscore.

I would like to experiment with the PinLED system in a Bally - Playboy etc..

It is a difficult question to answer - and maybe not cost effective. Bally Glass for the displays (6 Digit) are US$30 - $35. If you had to do four - US$140 + VS PinLED US$200...

I guess if you cannot find the HV board, then at least you have an alternative. You might have to try RGP or Mr Pinball classifieds, Nuggy.

[Pinball Fixers]

Why not use the Williams H/V section replacement board for the H/V? The you can still use the old P/S and have the correct voltages for the display... I think the transformer output should be fine for it.

[Nug]

this is for alphanumeric display +100/-100V

i thought HV replacement for dmd era ?!

[Pinball Fixers]

this is for alphanumeric display +100/-100V

i thought HV replacement for dmd era ?!

Hmmm, yep you are right on that.

Which Power supply do you have exactly?

After looking at the schematics for the 520-5000-00 and the 520-5047-00, you could modify the latter to work like the earlier one does. If you change D9 and D10 to 1N4764 (100V Zener), remove D11 and R14 and disable the +12V supply, it should work. I have not done this before though, but the H/V section on these two boards is very similar to begin with.

You may be able to do this on the 520-5047-01 and 520-5047-02 boards as well... but will require a bit more work and comparison.


I have all 4 schematics here if you need them, PM me if you do.