47 vizio lcd bad panel or main?

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • mattstolte
    Badcaps Veteran
    • Dec 2013
    • 612
    • usa
    #1

    47 vizio lcd bad panel or main?

    got this vizio turns on with no problem customer said it still has sound but I don't know for ure if it does I haven't checked yet but my first instink was bad panel so I wasn't even going to try it. but once powered on it has the blue horizontal bar then slowly fades the whole screen to white or could it be tcon?
    Attached Files
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: 47 vizio lcd bad panel or main?

      That is bad panel. Did you try having just one flat ribbon cables between the LCD panel and the T-CON board connected one at a time to see what you get?
      Never stop learning
      Basic LCD TV and Monitor troubleshooting guides.
      http://www.badcaps.net/forum/showthr...956#post305956

      Voltage Regulator (LDO) testing:
      http://www.badcaps.net/forum/showthr...999#post300999

      Inverter testing using old CFL:
      http://www.badcaps.net/forum/showthr...er+testing+cfl

      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
      http://s807.photobucket.com/user/budm/library/

      TV Factory reset codes listing:
      http://www.badcaps.net/forum/showthread.php?t=24809

        Comment

        Previous template Next

        Related Topics

        Collapse
        • advant
          Driving a Sharp TCON/panel with a universal main board
          by advant
          This thread is about trying to get an Universal Main Board to work with a Sharp TCON and panel.

          I have a Sharp LC-46D85UN TV that has had a main board issue. Since this model is from 2009, I am not able to find an exact replacement of the main board. Instead, I decided to see if I can future proof this tv by getting a Universal Main Board (T53U21.2) from China to work with the Sharp TCON (CPWBX4291TPZA) and panel. The universal main board supports a 8 bit dual channel LVDS interface whereas the TCON requires a 10 bit dual channel LVDS input. I have modded the LVDS connector to match...
          02-03-2020, 12:25 AM
        • howardc64
          Vizio M65Q7-H1 Red Vertical Strips fixed by tape blocking LC1 signal to half of the panel
          by howardc64
          Failure Symptom



          No picture, just red vertical stripes. Google search shows quite common problem for these recent Vizio M series although red vertical stripe pattern may differ. Some call it "Netflix" boot screen haha.

          Where is the short?

          Panel has 4x buffer boards. Quickly found the 1/4 panel buffer board with the problem by selectively disconnecting buffer board flex cables.



          Having recently fixed another Vizio with similar symptoms that was a shorted ESD diode array ( link ) Probed the ESD diode array but...
          05-27-2025, 02:56 PM
        • x_orange90_x
          TCL 50S535 bad tcon or panel issue?
          by x_orange90_x
          Just bought this for 10 bucks yesterday hoping to fix it. The guy said water dropped inside from a dehumidifier hose and it started showing black and white vertical bars then went blank. When I got it home and turned it on it came on fine and displayed correctly but I was noticing faint vertical bars in the image. After a little bit I turned it off and back on and it was a black screen again. I opened it up to check for water damage and corrosion but didn't find anything of the sort. I cleaned the ribbons anyway and reconnected them but still got a blank screen. If I disconnect the right side...
          03-29-2025, 11:02 PM
        • iglitare
          Sony KD-75XF9005 grey Picture but Sound. TCON or panel?
          by iglitare
          Hi,

          i want to repair a Sony KD-75XF9005 TV that initially only showed a grey picture.
          Backlight seems to work, Sound (Setup menu after reset) works.
          If i dissconnect the left FFC cable from TCON to panel i have half a screen on the right. If left cable is connected always only the grey screen.
          Interchanged the cables, its always only the right side that is working. Always grey if left side is connected.
          With my small knowledge i would think at least the cables are good.

          Can this happen because of a bad tcon board?
          Or is it always a bad/shorted...
          09-04-2025, 07:13 AM
        • mmartell
          General Questions on the Relationship Between Mainboard, TCON and Panel
          by mmartell
          My goal here is to be able to use boards on hand to swap into faulty sets when the faulty board is not obvious.

          I will start by asking what is the format of the output from the mainboard and is it generic in any way or does it vary by manufacturer and/or model ?
          ​
          And as far as I know a tcon and panel must be a matching pair because the timing of the signals and the voltages required to drive the panel are specific to the panel itself. (That may be a blanket statement that isn't true in some cases where the panel creates its own sub-voltages on its panel boards?)...
          01-06-2024, 01:32 PM
        • Loading...
        • No more items.
        Working...