Samsung power supply BN44-00505A fault

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • ftwizard
    New Member
    • Aug 2021
    • 2
    • UK
    #1

    Samsung power supply BN44-00505A fault

    I have a problem with my Samsung TV. I was sitting watching TV when suddenly, the TV went bang. I changed the fuse in the plug-top, and it went bang again.
    I thought I'd have a look inside at the power supply. I found a couple of diodes that looked burned, so i replaced them. It turned out they were okay anyway.
    On closer inspection, I saw a capacitor was blown out. I replaced that and although it didn't go pop again, it also didn't work either.
    The capacitor I changed was CM804.
    Any ideas why this cap should blow? would it be something to do with the device ICM801S.

    Thanks.
    Attached Files
    Tags: None
    • DjKrish
      Badcaps Veteran
      • Oct 2012
      • 354
      • SG
      #2
      Re: Samsung power supply BN44-00505A fault

      Originally posted by ftwizard
      I have a problem with my Samsung TV. I was sitting watching TV when suddenly, the TV went bang. I changed the fuse in the plug-top, and it went bang again.
      I thought I'd have a look inside at the power supply. I found a couple of diodes that looked burned, so i replaced them. It turned out they were okay anyway.
      On closer inspection, I saw a capacitor was blown out. I replaced that and although it didn't go pop again, it also didn't work either.
      The capacitor I changed was CM804.
      Any ideas why this cap should blow? would it be something to do with the device ICM801S.

      Thanks.
      as per my experience, in most cases its the IC. why cap blows? age factor and dying parts. in your case, its the IC and the caps

        Comment

        Previous template Next

        Related Topics

        Collapse
        • howardc64
          Samsung QN75Q6FNA backlight no display, red LED blink 2x, fault in panel
          by howardc64
          • Prior owner tried a replacement main board. No difference.
          • Samsung 2x red blinking standby LED = panel fault
          • Jumpered FB_TRDY_1 (pin 1 CN1300 left. main tcon->left side buffer boards) and FB_TRDY_3 (pin 95 CN1301 right. main tcon->right side buffer boards) This allows testing individual T-Con (on main board) connection to panel on this Samsung. Found fault on left side (viewing from rear of TV)
          • Each side has 2 buffer boards, disconnected left side flex between 2 buffer boards. Fault is on the left most board.
          • Tape masking eventually isolated to CN1300 pin 15 (CKV4_GOA) Display
          ...
          07-19-2025, 10:54 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
          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
        • Cookybaby
          Samsung UN60ES6500FXZA Power Supply Issue
          by Cookybaby
          Hello Everyone, this is my first post and I am excited to be a part of such a great community. I've been reading these forums for awhile and there really is some good friendly people here. No bashing and being rude like 90% of other forums Ive been to. Lets get to the good stuff.

          I have two years of college in Electronics Engineering Technology. Ive been tinkering with electronics sine about 1990. I know enough just to be dangerous, so be gentle.

          Make: Samsung
          Model: UN60ES6500FXZA
          Power Supply P/N: BN44-00525A

          Symptoms: The TV was...
          08-20-2023, 12:26 PM
        • Loading...
        • No more items.
        Working...