Samsung UN58J5190AFXZA pwr supply troubleshooting help

Collapse
X
Collapse
 
  • Page of 2
  • Time
  • Show
Clear All
new posts
Previous 1 2 template Next
  • neilc6
    Badcaps Legend
    • Nov 2015
    • 1550
    • Canada
    #21
    Re: Samsung UN58J5190AFXZA pwr supply troubleshooting help

    This model looks very similar to UN58H5202Af (1 year older) where bad backlights take out a FET.

    https://www.badcaps.net/forum/showth...ht=un58h5202AF

    Check Q9101? (similar location) for shorts.

      Comment

      • momo2000
        Member
        • Oct 2017
        • 20
        • USA
        #22
        Re: Samsung UN58J5190AFXZA pwr supply troubleshooting help

        Any other suggestions on what to test to track down the failed component(s) in this power supply? Would love the satisfaction of fixing it "myself" but I guess will have to go buy a new TV if I don't have this solved in the next few weeks. Suggestions appreciated.

          Comment

          • bstewara
            Member
            • Jun 2019
            • 40
            • USA
            #23
            Re: Samsung UN58J5190AFXZA pwr supply troubleshooting help

            Hi,

            We're you able to determine the part number for QM801 and 802CS MOSFETS?
            I have a set that these MOSFETS failed and burnt so I can't see the part numbers.

            Thanks in advance

              Comment

              Previous 1 2 template Next

              Related Topics

              Collapse
              • MtnManMike
                Samsung UN75J6300AFXZA LCD TV Power Supply Troubleshooting
                by MtnManMike
                Hello,

                I'm hoping to get some help figuring out how to troubleshoot this power supply board. The television is a Samsung UN75J6300AFXZA, version no. UH03. The power supply board has two model numbers on it, L75S1 and BN44-00723C. As far as experience level, I'm familiar with recapping boards in terms of safely going through the soldering motions, choosing suitable replacement parts, and so forth, but as far as understanding the various functions of each part of these TV power supply boards, I am a rank beginner.

                When I plug the TV in, the screen flashes on and off and...
                07-23-2022, 06:43 PM
              • Document Archive
                Samsung Galaxy Book 2 Notebook Specification for Upgrade or Repair
                by Document Archive
                This specification for the Samsung Galaxy Book 2 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Galaxy Book 2 boardview and Galaxy Book 2 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
                09-07-2024, 05:50 AM
              • cheeky2
                Samsung BN44-00262A H37F1-9SS power supply help finding blown value components!
                by cheeky2
                This Samsung combined power supply and inverter was replaced a while ago from a Samsung 37inch LE37B530P7W TV. However I would like to repair this one.
                I have replaced the Mosfets Q1820 and Q1821 ( FDPF7N50U) which were both blown and the fuse FM802S. The schematic for this power supply that is attached doesn't relate to this power supply as the driving transistors and diodes are D1830, D1831, D1832, D1833, Q1811 & Q1810 are nowhere on the schematic!
                Does anyone know what the components for D1830, D1831, D1832, D1833, Q1811 & Q1810 should be? I ask as I did change the Mosfets...
                06-15-2025, 05:12 AM
              • sam_sam_sam
                DVR camera recorder switching power supply capacitor failure really
                by sam_sam_sam
                These cheap non brand capacitors at it again

                Last night we had a power outage [ long drawn out trying three to come back up before going out completely ] and when I went to turn the DVR camera recorder back today no go 3 bad capacitors ( one capacitor no ESR reading on DVR board the other 3 capacitor on the power supply board over 40 ohm this is not a misprint ) on the external switching power supply and one capacitor on the DVR camera recorder board where the power supply that goes to the hard drive disk is

                Well at least I have the cameras back on line I to try the...
                01-22-2022, 06:28 PM
              • shovenose
                Ubiquiti Unifi PoE Switch US-8-150W Power Supply Failure
                by shovenose
                Got this one for free because, well, it no worky.

                A little research and there are tons of complaints all over forums/the internet about premature failure of these switches. The observation everyone makes about these is "they run hot" and failure occurring as soon as 13 months, right out of warranty, of course.

                Upon removal of the cover I found a G0398-15011480A power supply that, when plugged in, was making a constant ticking noise. Multimeter confirmed the PSU was the issue. Output was cycling between 0 and about 20V. With output disconnected it sat around...
                08-11-2021, 01:26 PM
              • Loading...
              • No more items.
              Working...