Samsung Plasma Model PN42C430A1D Power issue

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • tech2014
    Badcaps Veteran
    • Aug 2014
    • 807
    • Canada
    #1

    Samsung Plasma Model PN42C430A1D Power issue

    I have a Samsung Plasma TV with a power problem. I found shorted IGBT on both YSUS and ZSUS. I replaced the parts. I power uptake TV and I get the power up chime. Power stays on and LED on logic board blinks at 1 second intervals, which means everything is good. When I connect the YSUS buffer board into the circuit, the parts blow again. The buffer board PCB number is LJ41-08594A, PBA LJ92-01739A.

    I tested the buffer and found no shorts. Would an open circuit on the buffer short out the Y and Z SUS boards, or is it the panel. See pic of buffer board below.


    Attached Files
    Tags: None
    • tech2014
      Badcaps Veteran
      • Aug 2014
      • 807
      • Canada
      #2
      Re: Samsung Plasma Model PN42C430A1D Power issue

      So nobody has any idea??

        Comment

        Previous template Next

        Related Topics

        Collapse
        • Kjell
          Samsung Series 9 - BIOS issue
          by Kjell
          After installing Linux, I can no longer enter the BIOS of my Samsung Series 9 (NP900X3C) laptop. When pressing [F2] during boot I simply get a black screen. Same thing when pressing [F10] and choosing "Setup" from the "App Menu" tab. Apparently this is a relatively common issue with Samsung laptops of that generation, but unfortunately i haven't been able to resolve the issue (yet).

          Things i've tried so far; reinstalled Windows 10, checked for redundant boot entries, tried to factory reset using the emergency keyhole, attempted to clear the NVRAM by physically...
          08-01-2025, 09:15 AM
        • 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
        • lp20th
          Samsung Plasma TV Power Supply Issue
          by lp20th
          I have a vintage 2008 Samsung 50” Plasma TV, Model code PN50A550S1FXZA with a power supply part number BN44-00222A. I repaired the power supply board several years ago finding a couple of cold solder joints on the back side of the board and it's worked great up until now. Recently a fried sound occurred with the smell of burnt electronics and the TV shut down. Trying to turn it back on yielded the typical relay clicking with no TV boot up. Upon investigation, removing feeds to the other boards within the TV it was found that disconnecting the logic board from the power supply allowed the...
          11-28-2023, 10:28 AM
        • Nairolf
          Samsung DM32D – Red LED blinks 5 times, won’t start (possible mainboard issue)
          by Nairolf
          Hello,

          I have a Samsung DM32D display.
          When I try to power it on, the red LED blinks 5 times and nothing happens—the unit won’t start.

          Here’s what I have tried so far:
          1. Disconnected the cable between the mainboard and the power supply → the backlight turns on.
          2. Disconnected the main T-CON ribbon cable → same issue as before, the LED still blinks 5 times.
          3. Disconnected one of the two T-CON ribbons to the panel (tested each one separately) → same issue, the LED blinks 5 times.

          From these tests, I suspect the problem might be on the mainboard. Could anyone...
          3 Photos
          08-24-2025, 03:47 AM
        • vincentedel
          Samsung SyncMaster 740n Phase Control Issue
          by vincentedel
          Hello,
          I'm having an issue with the Samsung 740n's phase control setting. When I use the automatic adjustment, it sets the value to around 54 (with a range of 0-100), and the picture looks clear and sharp. However, after some time—like after playing a game—the text starts to look blurry. When I auto-adjust again, it may increase the value to 80, and everything becomes sharp once more. Yet, after a while, whether it's a few hours or a day later, the same blurriness returns, and I have to adjust it again.

          I'm using the Samsung 740n monitor drivers instead of the default plug-and-play...
          04-22-2025, 12:33 AM
        • Loading...
        • No more items.
        Working...