The Aussie Pinball Arcade
Aussie Pinball Forums => Pinball Trader => Parts wanted => Topic started by: Nug on November 08, 2008, 08:56:59 AM
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i have a working 'small DMD' DE powersupply as trade ? otherwize was going to modify for no HV and go pinled....thoughts?
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Personally I don't like the look of the LED displays. I've tried both pinled and pinscore.
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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.
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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.
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this is for alphanumeric display +100/-100V
i thought HV replacement for dmd era ?!
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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.