Dual output power supply 5 and 12 volts (no output)

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • falcontech
    Badcaps Veteran
    • Oct 2013
    • 470
    • italy

    #61
    Re: Dual output power supply 5 and 12 volts (no output)

    so the resistance between the two pins I have to test it in ohms? the zener diode I had checked and it looks good, in any case tomorrow I replace it

    Comment

    • falcontech
      Badcaps Veteran
      • Oct 2013
      • 470
      • italy

      #62
      Re: Dual output power supply 5 and 12 volts (no output)

      hello, I have decided to replace all the components of the primary, I am waiting for them to arrive, I have not yet done the test with the power supply working for it is hermetically closed and for the moment I would like to avoid breaking it to open it, we will hear from you as soon as I have made this further test

      Comment

      Related Topics

      Collapse

      • sam_sam_sam
        Desoldering gun station modified to use a 18 volt @ 20 amp switching power supply
        by sam_sam_sam
        I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump

        One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy...
        03-31-2024, 02:12 PM
      • Tynan Dill
        Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
        by Tynan Dill
        I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

        Upon bringing it home and plugging it up, it showed a standby light.

        I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

        The screen seems to blackout and stay black, but with a flashlight I can see the display.

        With my Playstation 4 connected via HDMI, and running a game I can hear sound.

        Assuming...
        11-22-2024, 01:46 PM
      • CMCM
        Russound CA4 Power Supply Repair
        by CMCM
        Hello Everybody,

        Trying to repair a power supply from a Russound CA4 Multizone Controller (picture attached)

        Russound no longer supports it but were kind enough to provide a schematic of the power supply (pdf attached).

        The outputs marked 12v and 20v are all measuring only 1v.

        The board is clicking, which I think means it is in something called hiccup mode when the flyback transformers switches because of an internal problem or something else on the board Overloading it.

        The capacitors physically look clean (no bludgesor leaks) and...
        Yesterday, 01:12 PM
      • Gust zhang
        Mid 2014 A1398 MacBookPro,Is it feasible to remove the battery from the MBP and connect it to an external power supply?
        by Gust zhang
        ​I have a 15 - inch Retina MacBook Pro from the mid - 2014 model. Here is the link: https://www.badcaps.net/forum/showth...light=820-3662 . The battery broke some time ago. After I removed the battery and plugged in the original power adapter, the MBP could boot up normally. However, when I checked with IntelPowerGadget, I found that the CPU speed was limited to 0.8 GHz, and it ran very slowly. Later, I found a solution on GitHub. There is an open - source project called cputune that can set the CPU running speed. So I can now run the MBP at full speed. But another problem...
        02-16-2025, 08:39 AM
      • GLISIT
        Asus Probook P5440UF-XB74 power issue
        by GLISIT
        Hi all,

        TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!


        I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!

        A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about...
        01-16-2025, 02:29 PM
      • Loading...
      • No more items.
      Working...