(Topic ID: 23720)

Problem with 2 New X Pin Power Supplies - anybody else bought them?

By ScottinSGFNY

7 years ago

Topic Stats

  • 19 posts
  • 10 Pinsiders participating
  • Latest reply 7 years ago by Crash
  • Topic is favorited by 1 Pinsider


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    #8 7 years ago

    I appreciate everyone's support. This is a great hobby! I need to add a little bit more to Scott update...


    Quoted from ScottinSGFNY:Brett called me and it looks like the DE power supply is ok, looks like the old DMD might be the issue.

    The Williams 11b power supply is getting replaced as it seems to have a short.

    Unfortunately the power supply is not working correctly and I will be replacing it as well. When the DMD went bad it also caused a problem on my supply...but I do need some help from the community in understanding what is happening...

    Concerning the DE games in general, the stories I hear from customers are that the HV section on the orignal power supplies, particularly the +68V, is the first to fail, and when they get rebuilt, they keep failing until the DMD display fails. One customer indicated he rebuilt his entire HV section on the original power supply 3 times. Each time it would work for about a week then fail again. After the final rebuild both the power supply and the display went up. The display itself was a Cherry display. He ended up buying one of my PS-5047's (before XPin) and a new Vishay display from Terry at Pinball Life. To the best of my knowledge it is still working.

    Over the past 6 months, Scott's isn't the only game that had this same issue, but I have been keeping track and it seems that there is a relationship between the failures of the original DE supplies and Cherry displays...and my supplies.

    Quoted from viperrwk:

    Brett is the best and stands behind his stuff like no one else. I have his PS in my R&B and it is great - even saved me and the PS one time when I did something stupid. I'm sure if you reach out to him you'll be back up and running in no time.


    Viperrwk has this same supply in his R&B. I have installed this same supply personally in a LW3 and JP, but one had a Babcock and the other had a Vishay. So, what I am asking for is any stories of similiar failures with Cherry displays? Doesn't necessarily have to be with regard to DE games, but any games with Cherry displays?


    #10 7 years ago

    That would be appreciated. I heard that Jim Knight (Rottendog) had a similar problem and it also was never resolved. I have spent hours pouring over the schematics of the Cherry display, the DE power supply schematics and wiring diagrams, and the DE controller and I haven't really come up with anything.

    #13 7 years ago


    Yes, found out that I had a low resisistive short on one of the electrolytic caps on the -12V.


    #16 7 years ago
    Quoted from Crash:

    Ah! I knew it was a short somewhere. So was that a manufacturing flaw? You said you tested that board in your Rollergames (which is also a System 11b) and you said it worked fine.

    Definitely a mfg defect.

    Quoted from viperrwk:

    I checked the display on my R&B and it is indeed a Cherry. I've had no issues with it and have put about 150 games on the PS. The only thing I will say is that after about 10-15 min the machine has a very loud hum from the DMD, though I chalk that up to the crappy DE design. LMK if there's anything else you'd like me to check.

    Viperrwk, thanks for checking that out. It is appreciated. I have never not played a DE game and not had that hum, regardless of my supply in the game or an original.

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