Fluke 289 bad supercapacitor replacement repair

Collapse
X
Collapse
 
  • Page of 4
  • Time
  • Show
Clear All
new posts
Previous 1 2 3 4 template Next
  • CapLeaker
    Leaking Member
    • Dec 2014
    • 8043
    • Canada
    #61
    Re: Fluke 289 bad supercapacitor replacement repair

    Baaah, that’s a good question. I think I didn’t measure the voltage exactly, rather the time it took. I’ve got to look back on the notes I took, first I gotta find ‘em. LOL

      Comment

      Previous 1 2 3 4 template Next

      Related Topics

      Collapse
      • the_rem
        Unknown transformer : how to find a good replacement part ?
        by the_rem
        Hello guys,

        I would like a quite old but still good 800 W ATX PSU to be repaired. The problem was an extremely heavy coil whine coming from the small secondary transfomer on the PCB.

        I desoldered it hoping the references on the upper side would allow me to find a adequate replacement part. Sadly the written references drove me nowhere but to the manufacturer (I-MAG). I sent them a message like a bottle in the see asking them to send me a datasheet of the transformer. And... They responded ! I received a kind of datasheet (see attachment) but my competencies do not allow...
        VEF20FB07BW(2025001A)20110927.pdf
        https://drive.google.com
        04-23-2025, 01:48 AM
      • ezenia
        PS4 controller left stick potentiometer replacement issue
        by ezenia
        Hello,

        Not sure if this is the correct section, but I have a PS4 controller that I am trying to fix. It developed stick drift on the left stick and the usual simpler methods did not fix the problem.

        So I went on eBay and ordered some replacement potentiometers. https://www.ebay.co.uk/itm/174967976757 is where I got them from.

        I took the green potentiometers off the replacement sticks and soldered them onto the PCB. Assembled the controller and ran some tests. The drifting was somewhat fixed (not fully in center, but way better than before). However,...
        09-30-2023, 02:19 PM
      • quickname
        Cyberpower 1500AVR UPS repair
        by quickname
        I'd like to start out by thanking this forum for providing the info to be able to repair my 15 year old CP1500AVRLCD UPS. Here is all the info I gathered during my trouble-shooting and re-capping.

        Like clockwork, I've had to replace the SLA batteries every 4 years. It was about that time and the UPS was acting like it needed new batteries... randomly shutting off with AC present, not being able to charge fully, and poor runtime when AC was removed. So, I replaced the batteries but noticed that it was not charging properly.

        I decided to verify that the batteries were...
        11-12-2023, 09:57 AM
      • boosti45
        Macbook pro logic board replacement parts quesion
        by boosti45
        i have a 2020 macbook pro 13" A2251 with 820-09149 logic board so i found an issue with chip labeled U6903 according to schem. boardview using flexBV software, so i removed it from the board and the issue im having is that the chip says "07A08FI ELC180​" on top of it but when searching for a replacement chip, i can find tons of identical looking chips that also have "ELC180" printed on them but the first set of digits is never the same so im trying to find out if i need this exact chip with these same numbers as mine and if not which ones are compatible as a replacement?...
        08-21-2024, 05:23 AM
      • r2digital
        klipsch kda-500 amplifier suitable power supply capacitor replacement ?
        by r2digital
        I have a klipsch kda-500 that would turn on and allow me to get into the web management but it was picking up a lot of noise from audio sources so i decided to replace the smd caps on the power supply along with radial one. Some one was in here before me and they basically burned the bottom side of the traces off for the radial cap but i was able to repair it without any real problem. I thought i did a good job sourcing out replacement caps but apparently not and now i can't get the power supply to turn on it just constantly try's to keep turning on. Attached is a picture of the power supply before...
        2 Photos
        04-18-2024, 03:50 PM
      • Loading...
      • No more items.
      Working...