VIZIO TV (Model:VL370M) Display not working

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • nomoresonys
    Badcaps Legend
    • Jan 2013
    • 12081
    • U.S.

    #21
    Re: VIZIO TV (Model:VL370M) Display not working

    Originally posted by nomoresonys
    maybe check all the test points and see if there's any differences if you havent already.
    Oops my bad, dont know what I was thinking, I must have just wrote down what I read in your post.

    Comment

    • L3git
      Member
      • Jan 2022
      • 22
      • USA

      #22
      Re: VIZIO TV (Model:VL370M) Display not working

      Yeah I've noticed that too looks like VGH is half of what it should be for a working TCON board. It's interesting to see what you guys do to troubleshoot. I'm curious how come VGH is a problem why is the voltage lower than it should be?

      Comment

      • dskall
        Badcaps Legend
        • Oct 2016
        • 2905
        • usa

        #23
        Re: VIZIO TV (Model:VL370M) Display not working

        I think vgh is created by a voltage doubler circuit. Maybe a shorted diode. I can't read the chip that generates the t-con voltages.
        I assume no responsibility for any stupid suggestions I might post.

        Comment

        • L3git
          Member
          • Jan 2022
          • 22
          • USA

          #24
          Re: VIZIO TV (Model:VL370M) Display not working

          Hm I see so it's one of those little metal pieces like C25, C76, C61 or that area around it that's shorted?
          Attached Files

          Comment

          • dskall
            Badcaps Legend
            • Oct 2016
            • 2905
            • usa

            #25
            Re: VIZIO TV (Model:VL370M) Display not working

            C are capacitors. D are the diodes
            I assume no responsibility for any stupid suggestions I might post.

            Comment

            • nomoresonys
              Badcaps Legend
              • Jan 2013
              • 12081
              • U.S.

              #26
              Re: VIZIO TV (Model:VL370M) Display not working

              can check the caps meter in diode mode, probe on each end, shorted if continues to beep or reading close to 000, if one reads short remove and check off board, if it's ok off board then something else was making t read short.

              Comment

              Related Topics

              Collapse

              • jayakumar
                dell 5490 la-f401p no display ( in HDMI out working )
                by jayakumar
                I have dell 5490 la-f401p problem: no display ( in HDMI out working )
                changed working bios ,working screen ,cable
                Please help me to resolve the issue

                i have more then 7 laptop's having the issue
                08-06-2024, 10:03 PM
              • Document Archive
                LG Ultra Notebook Specification for Upgrade or Repair
                by Document Archive
                This specification for the LG Ultra 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 Ultra boardview and Ultra 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 for LG Ultra Notebook is accurate,...
                09-06-2024, 07:20 PM
              • modtool
                Macbook Pro 14 2021 - A2442 - 820-02098-A - Internal display not turning on but MacOS working good
                by modtool
                Dear collegues,
                the owner of this machine brought it to me saying that suddenly one day the display didn't turn on anymore, he tought that all the machine was damaged but it turned out that the MacOS starts good and stays on, and that connecting it to an external display it works without problems.
                If you take a look into general settings, you can also see that the internal retina display is recognized as connected by the main board but for an unknown reason it doesn't turn it on.
                I've tried to put a bright light towards the screen but I can't see anything, any shadows or apple...
                05-08-2024, 05:50 AM
              • howardc64
                A1312 (27” iMac 2009-2011) A1407 (Thunderbolt Display) A1316 (Cinema Display) Display Black Screen Repair
                by howardc64
                Problem

                This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached....
                08-04-2024, 10:36 PM
              • Mark R
                Equipment Display Types
                by Mark R
                Most Displays I have worked with are of course LCD Or Blueish Fluorescent Types. I Have a Marantz PMD800 tuner with sort of a white display. The display area is a sealed rectangular shape in a Glass Case. Looks like some sort L.E.D. display only not your typical section number type. I picked up this Tuner cheap as the display is very Dim. In front of the circuit is a dull red Plastic lens.

                The display is very week and hard to see. I've got my DC 5 Volts allover and also a DC 32 Volt that runs some other section. Power supply looks good front to back. Not familiar with this type...
                06-07-2024, 07:19 PM
              • Loading...
              • No more items.
              Working...