Results 1 to 10 of 10

Thread: PSU repair

  1. #1
    Dogg-Father
    Neodogg's Avatar
    Join Date
    Nov 2002
    Location
    Cincinnati, OH

    Posts
    3,371

    PSU repair

    Does anyone work on these now a days or are we at a point they are just disposable?
    _ _ ___________________________ _ _
    People I've delt with:
    |Steve Rhine|Vinh|Jeff Kurtz|Kenny Boy|Big Bear|Fox1|Bones|Kid Aphex|Bluevoodu|Kubikiri Basara|Shawn|Michael Yagami|

  2. #2
    We have purposely
    trained him wrong
    ...as a joke.
    ChuChu Flamingo's Avatar
    Join Date
    Nov 2010
    Location
    US

    Posts
    2,204
    Channelmaniac might? You would need to message him. A lot of SMPS can be repaired if badcaps.net is anything to go by. What type of power supplies anyhow? Unregulated (think AC adapters for old consoles), Linear (some arcade cabinets have this psu, like an Egret 2), and Switching (usually computer PSUs and cd based consoles/modern ones).

    https://mcitransformer.com/power-sup...ulated-linear/

    My experience in repair has usually been capacitors or dry solder joints. I've fixed a few unregulated and switch mode just by simply doing what I listed above and diodes. Just be mindful if you do replace capacitors on SMPS to discharge them properly and replace with low ESR capacitors specifically made for switching power supplies.


    - In any case here is a good guide on SMPS and their modes of failure by channelmaniac.

    http://newlifegames.net/nlg/index.ph...674&topic=23.0


    - a lot of good videos from my boomer senpai 12voltvideos on fixing them. Great youtube channel if you wanna learn how to fix stuff.

    https://www.youtube.com/user/ATVVide...ry=switch+mode


    In any case replacing a lot of these psus with brand new high quality replacements is just the more solid approach imo. With that said some PSUs cannot be so easily replaced (Sun-JVS, non-standard ones like Arcade Cabinets and some consoles, odd voltages, or SMPS in TV's/devices) without making a wiring harness or running into clearance issues. Sometimes repair is the only way.
    Last edited by ChuChu Flamingo; 11-23-2019 at 03:41 PM.
    健康第一
    Health comes first

  3. #3
    Dogg-Father
    Neodogg's Avatar
    Join Date
    Nov 2002
    Location
    Cincinnati, OH

    Posts
    3,371
    Sorry, arcade psu - Peter Chou from 1987
    _ _ ___________________________ _ _
    People I've delt with:
    |Steve Rhine|Vinh|Jeff Kurtz|Kenny Boy|Big Bear|Fox1|Bones|Kid Aphex|Bluevoodu|Kubikiri Basara|Shawn|Michael Yagami|

  4. #4
    We have purposely
    trained him wrong
    ...as a joke.
    ChuChu Flamingo's Avatar
    Join Date
    Nov 2010
    Location
    US

    Posts
    2,204
    Ah ones of those. Everyone jizzes over those on klov but it isn't like its the only switch mode power supply. A lot of the arcade switch mode psus have copied its design though lol. From reading up those seemed to be one of the first high quality arcade switching power supplies. Any reason why you want to keep that one other than appeasing captain planet?


    In any case below is a good guide on replacements. I saw you linked it on AP too but just thought I would link it here as well for posterity.

    https://www.arcade-projects.com/foru...lies/&pageNo=1

    I use two of the meanwell MWP-606 (one in my Egret2 and other in HAS). It has good quality capacitors overall and safety features as evident by the thread above. Even has oscilloscope readings of its ripple and load which all look extremely good. Doesn't even get hot when using it for long periods of time. RGB, maker of the HAS endorses this specific model.

    tl;dr I doubt even a rebuilt 1987 peter chou could compete with a meanwell 606 in terms of safety. Only cost like $22+shipping to. To send this off to someone is probably going to cost in the upwards of $30-$50 if you're lucky.
    Last edited by ChuChu Flamingo; 11-23-2019 at 06:18 PM.
    健康第一
    Health comes first

  5. #5
    Dogg-Father
    Neodogg's Avatar
    Join Date
    Nov 2002
    Location
    Cincinnati, OH

    Posts
    3,371
    Yeah, that’s what I was thinking cost efficiency isn’t there. I was thinking about getting a couple meanwells.
    _ _ ___________________________ _ _
    People I've delt with:
    |Steve Rhine|Vinh|Jeff Kurtz|Kenny Boy|Big Bear|Fox1|Bones|Kid Aphex|Bluevoodu|Kubikiri Basara|Shawn|Michael Yagami|

  6. #6
    We have purposely
    trained him wrong
    ...as a joke.
    ChuChu Flamingo's Avatar
    Join Date
    Nov 2010
    Location
    US

    Posts
    2,204
    Another benefit of going with a mean well MWP-606 is you can get a 3d printed enclosure to go over the screw terminals. I have one and its pretty awesome. Without that plastic cover you have live and neutral 120 AC via exposed metal screw terminals. Not that big of a deal inside a cabinet, but in a supergun setup could cause problems.

    Also it doesn't squeal/hum under low load like other psus. If you read the thread there is some pretty bad ones out there, some even by meanwell themselves!
    健康第一
    Health comes first

  7. #7
    Dogg-Father
    Neodogg's Avatar
    Join Date
    Nov 2002
    Location
    Cincinnati, OH

    Posts
    3,371
    I did find a cap list for my Peter Chou psi, might be a nice entrance into recapping something...

    https://www.arcade-projects.com/foru...s-psu-s-pcb-s/
    _ _ ___________________________ _ _
    People I've delt with:
    |Steve Rhine|Vinh|Jeff Kurtz|Kenny Boy|Big Bear|Fox1|Bones|Kid Aphex|Bluevoodu|Kubikiri Basara|Shawn|Michael Yagami|

  8. #8
    World Hero
    awbacon's Avatar
    Join Date
    Jan 2009
    Location
    CHicago

    Posts
    2,307
    PSU repair is the one thing that, for whatever reason, scares me away.

    If I do it right awesome. If I fuck it up...seems sketchy. I replace them when they go on me

  9. #9
    Soccer Brawl
    Gmegbln's Avatar
    Join Date
    Apr 2010
    Location
    Canada

    Posts
    46
    Seconding that PSU repair isn't really worth it in my opinion - unlike something like a monitor, new arcade PSUs are generally better made and that if you don't require any specific connectors or dimensions, you can find one that'll work well pretty cheaply.

    That being said, if you've never recapped anything and would like to try, then go for it. If you have the right tools, it doesn't take that long and is a good skill to have

  10. #10
    World Hero
    awbacon's Avatar
    Join Date
    Jan 2009
    Location
    CHicago

    Posts
    2,307
    I need to recap my Towns Marty PSU at some point. Caps are fine now but they are known for drying out

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •