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Thread: Deep Clean an Arcade Power Supply...

  1. #1
    Genam's Azami Sharpener
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    Deep Clean an Arcade Power Supply...

    So, still in the process of deep cleaning my Neo 4 cab. I'm now attempting to swap out the fan in the power supply since it's now not spinning.

    Opened up the case and was greeted with this:

    Neo.jpg

    Mind you, it still worked prior to me taking it out of my cab. I just really wanted to replace the fan and put it back in.

    I've tried just using an air duster to blow all that crap out, but it didn't work. It's caked in there. Might be some old moisture damage, since the side of the cab looked like it got soaked in something, but the particle board on the cab isn't spongy or anything.

    Is it worth saving? I'm thinking of just spraying some cleaner and rinsing it clean with water. Stopping short of using a pressure washer, any other ideas to clean out the caked up garbage in there, or should I just break down and invest in a new power supply?
    ...console emulation has no soul...

  2. #2
    MAX POWA SURGE!
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    Spray it with isopropyl maybe??? Hit it with a Toothbrush after it has soaked for a while?
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  3. #3
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    Me personally I would just get a new one at that point.
    Its only a PSU after all and with that amount of shit in there you are bound to need to do some kind of repairs due to over heating.

    Looks like you even have some dead insects in there??

    If you want to try it though I would clear as much of it out with a clean stiff bristled paint brush and air. then hit it with contact cleaner or isopropanol and cotton buds.

  4. #4
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    Quote Originally Posted by titchgamer View Post
    Me personally I would just get a new one at that point.
    Its only a PSU after all and with that amount of shit in there you are bound to need to do some kind of repairs due to over heating.

    Looks like you even have some dead insects in there??

    If you want to try it though I would clear as much of it out with a clean stiff bristled paint brush and air. then hit it with contact cleaner or isopropanol and cotton buds.
    I had some time today and decided to try and spray the thing down with hot water today.

    Here is the result:
    IMG_20190929_113416.jpg

    Pretty much night and day difference.

    I hit it with compressed air immediately after spraying it down, making sure all components were hit with air: above, below, and in between, until it was kinda dry. I'm giving it a day or two to fully dry out before plugging it back in. Still gotta swap out the fan on it as well.

    I do have a back up if this one decides to just up and die, but I'm trying to stay frugal with this clean-up.
    ...console emulation has no soul...

  5. #5
    Kuroko's Training Dummy
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    You can also dip it in rice for those 1-2 days, it's a nice natural demoisturizing.

  6. #6
    Chin's Bartender
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    I was always under the impression cleaning a board with water with large caps like that is not a good idea?

    But then I guess there's no IC's, so maybe it's fine?
    Last edited by city41; 10-03-2019 at 12:36 AM.

  7. #7
    Genam's Azami Sharpener
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    Quote Originally Posted by city41 View Post
    I was always under the impression cleaning a board with water with large caps like that is not a good idea?

    But then I guess there's no IC's, so maybe it's fine?
    As long as there's no power (ie: all caps drained of power), there should be no problem with spraying down. I've cleaned most of my second hand consoles this way (tap the power button a few times while unplugged to drain the caps).

    I'm about to put it back together and reinstall it. Hope things don't blow up.
    ...console emulation has no soul...

  8. #8
    Dodgeball Yakuza
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    I've cleaned/rebuilt several big power supplies for Blast Citys. Spray down with diluted simple green, scrub with a soft paint brush, rinse off with a hose and let dry for a couple days. Squeaky clean and ready to go back together.

  9. #9
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    Quote Originally Posted by city41 View Post
    I was always under the impression cleaning a board with water with large caps like that is not a good idea?

    But then I guess there's no IC's, so maybe it's fine?
    You can still have water ingress but the chance is low. If recapping the PSU it is often suggested to do it after cleaning.

    Most people don't give a shit.


    he spends hundreds on scarves, of course he's a fag and then ChuChu Flamingo preserved the aftermath in a plastic case making sure it wasn't exposed to unstable air
    You're just upset that you're too goddam stupid to understand the games and whiff infinites.
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  10. #10
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    Quote Originally Posted by ChuChu Flamingo View Post
    You can still have water ingress but the chance is low. If recapping the PSU it is often suggested to do it after cleaning.
    I should've, but since the caps looked like they weren't bulging, I just put it back together and called it good. I got a new fan in there and it roars!

    Quote Originally Posted by ChuChu Flamingo View Post
    Most people don't give a shit.
    That'll be me.

    FWIW, I reinstalled it and tested it. No fire, no explosions.
    ...console emulation has no soul...

  11. #11
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    Awesome job and some great info as well.
    Hit detection...It's all about hit detection.

  12. #12
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    I would reflow the soldering on those 3 wires going from the copper coil to the chassis board. Then again.. if I saw the same when I opened it Id just replace it.

  13. #13
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    I've used Auto Finesse interior detail spray in the past. Usually does the job

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