LG 47LV5400 No Image

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • rikrikrik13
    Member
    • May 2013
    • 44
    • Canada
    #1

    LG 47LV5400 No Image



    I got this LG Tvs not working properly.

    I did many test. When everything is hooked up, I got no image, only some lines on the right side of the tv.

    If I disconnect the right side of the T-CON board, I get half screen working perfectly. With both side connected, only lines on the right side and no image at all (sound ,backlight and everything is working).

    I replaced the T-Con with 2 different one, same problem, I replaced the Main board, same problem. Only thing left is the Power supply (seems ok), panel or??

    Please help!!! Thank you
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: LG 47LV5400 No Image

      Bad panel:
      https://www.badcaps.net/forum/showth...ight=LG+47LH55
      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

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK
          #3
          Re: LG 47LV5400 No Image

          You may be lucky and it is just a shorted SMD cap on one side but I am willing to bet that there is a fault with one of the tab drivers.
          Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
          For service manual, schematic, boardview (board view), datasheet, cad - use our search.

            Comment

            • rikrikrik13
              Member
              • May 2013
              • 44
              • Canada
              #4
              Re: LG 47LV5400 No Image

              Can you explain me a little bit more how can I test a SMD cap?

                Comment

                • cashkennedy
                  Badcaps Veteran
                  • Aug 2011
                  • 668
                  • USA
                  #5
                  Re: LG 47LV5400 No Image

                  Along the side of the screen are thin boards where the 2 ribbon cables from the tcon connect (often you have to disassemble a lot to get to these boards). There are not many parts on these boards, many tab bonds, and a driver (IC chip) every few inches. The SMD caps are small beige cubes, you can test them with the ohm (resistance setting) by connecting your leads to each side, and the resistance should increase very quickly from 0 to out of range oL or something like that. You can also test them with the capacitance setting on your multimeter if you have that setting.
                  Fixed so far 12 lcd's , 1 plasmas, 5 monitors, 0 dlp's (plan to keep the dlps at 0). and 3 atx power supplies, and 2 motherboards.

                    Comment

                    • rikrikrik13
                      Member
                      • May 2013
                      • 44
                      • Canada
                      #6
                      Re: LG 47LV5400 No Image

                      thank you Ill try that!

                        Comment

                        Previous template Next

                        Related Topics

                        Collapse
                        • howardc64
                          TCL 55S425 few horizontal lines, potential failure on both side of panel/buffer board
                          by howardc64
                          All left and right refers to looking from rear of TV (or looking from front with TV upside down)
                          • TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
                          • Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
                          ...
                          07-24-2025, 05:17 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
                        • shlomim412
                          samsung ua55es6800 - no image
                          by shlomim412
                          hi
                          having problem with samsung ua55es6800

                          tv had backlight on, sound working - responds to the remote control but no image.

                          check tcon board - had 12v in but no other voltages present.
                          when disconnected left ribbon cable - got back voltages and half image with lines and distorsion

                          when leaving only left side connected - again no voltages and no image.

                          put a tape on all (cd?! lines) on the left ribbon cable and got complete but distorted image (horizontal lines).

                          kept trying to block less pins on the left ribbon cable...
                          05-15-2024, 05:00 AM
                        • Document Archive
                          HP Elite Slice G2 + Image Load & Asset Tag Elite Slice i5-7500T Specification for Upgrade or Repair
                          by Document Archive
                          This specification for the HP Elite Slice G2 + Image Load & Asset Tag can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Elite Slice G2 + Image Load & Asset Tag boardview and Elite Slice G2 + Image Load & Asset Tag 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...
                          09-12-2024, 02:20 PM
                        • jimmyboy111
                          TCL Roku 65S421 - Double Side by Side Image
                          by jimmyboy111
                          .. swapped mobos and matched them close as possible .. now this .. two images side by side I am guessing wrong resolution .. everything else is working fine

                          .. unable to get into service mode with new update any help is appreciated

                          https://imgur.com/a/Mzhz0Iw

                          https://imgur.com/a/fxB7wV8
                          07-11-2023, 10:54 PM
                        • Loading...
                        • No more items.
                        Working...