LG 50PQ3000 Y and Z blow

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • PowerAmpFreak
    Badcaps Veteran
    • Feb 2010
    • 982
    • Sweden
    #1

    LG 50PQ3000 Y and Z blow

    Both Y-SUS and Z-SUS board was blown. I've never seen a damage when both these boards are blown in the same failure.
    Anyone familiar with this model?
    Could it be a panel failure perhaps?
    Tags: None
    • drpj23
      Badcaps Veteran
      • May 2012
      • 528
      • USA
      #2
      Re: LG 50PQ3000 Y and Z blow

      If the z gets it's voltages from the Y then that's very likely that something faulted in the Y. I would check to see of the power supply is still ok.

      The only time i've seen a panel damage a board it was on the buffer board (but that was on Panasonic's and that was because of shorted electrodes.)

      Here is an article (though may be relevant to older models but still may be for you as well)

      http://blog.coppelltvrepair.com/search?q=x+sustain

        Comment

        Previous template Next

        Related Topics

        Collapse
        • npielawski
          MacBook Pro late 2016 (820-00239) with multiple failure modes.
          by npielawski
          I will just preface all this by saying that I have a fairly technical background but have never attempted SMD electronics diagnostics and repair before, I really like the idea and want to learn.

          I have a MacBook Pro late 2016 that died maybe four years ago. Over the course of 30 seconds, it got slower and stuttered, until it froze for a second and died. No click from the trackpad anymore, nothing. I started getting interested in electronics repair and decided to give it a shot, so I opened it, removed the battery (one cell was puffy), took out the motherboard and experimented with...
          10-15-2025, 01:53 AM
        • cmlewis89
          LG 47LB5DF blown power supply board
          by cmlewis89
          Hi folks,

          I'm new to this forum. So my trusty 17-year-old LG 47" LCD recently died. As I was booting it up, I heard a hum followed by a loud bang, sounds of pieces flying around, and loss of power to the unit. Inspecting the PSU, I saw two obvious problems: a blown thermistor (bang + flung pieces) and a visibly bulging main cap. Inspecting as many components as I could with my Fluke MM, I diagnosed that the following components on the "hot side" of the board were also bad: one of the 2 main MOSFETs, main 8A fuse, small cap (25V 47uF) connected to main caps, and a blown...
          12 Photos
          09-03-2024, 07:50 PM
        • puccovelli
          Dell 9310 Memory or RAM (Random-Access Memory) failure (2,4)
          by puccovelli
          Hi all, I hope this is the right place to post.

          I'm having a problem with a Dell 9310 which is posting 2 orange, 4 white lights on startup (hangs on Dell BIOS logo). The service manual says its a RAM failure.

          I've taken the motherboard out and noticed that one of what looks like an SMA 0805 resistor has blown (see photo). The board is an LA-J144P Rev 2.0(A01).

          1] Could someone confirm what the component that has blow actually is (and where I could get another from).
          2] Whether this component is likely to cause the RAM failure issue, and if replacing...
          10-11-2025, 06:30 AM
        • drscoot
          HP X360 convertible battery blown fuse error, not charging
          by drscoot
          HP Modelnumber: 14-dh0061nb​
          This laptop had a shorted cap on a Vcore section. After replacement is works again. But there is still a battery issue.
          The battery is HT03XL and with the built-in component test from HP, in the Power section, I get an error: Logic State: Calibration required (20), Charge state: Blown Fuse (42)
          I have another same battery, also with error: Logic State: Very Weak (70), Charge state: Blown Fuse (42)
          And a third battery TF03XL (looks identical) with error: Logic State: OK (0), Charge state: Blown Fuse (42)
          All these 3 batteries are charging...
          charging section
          2 Photos
          12-15-2023, 05:54 AM
        • w00pz
          Identify blown component on HP ENVY X360 13-arxxxxx, Motherboard G1 13 AMD X360 18740-1 448.0GA03.0011
          by w00pz
          I have blown a component on HP Envy x360 with motherboard G1 13 AMD X360 18740-1 448.0GA03.0011.
          Unfortunately there are no schematics available and the component was so blown the marking weren't readable.

          I have marked it with a red circle in the attached photos - sorry for the mediocre quality I was too much in a rush.
          Hope someone will be able to identify the component.

          Many thanks for your help!

          Edit: High-res picture added on a normal board (not mine)...
          2 Photos
          11-08-2025, 02:48 PM
        • Loading...
        • No more items.
        Working...