LG 42LC3R-zh

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • redriddick
    Senior Member
    • Dec 2014
    • 93
    • Ireland
    #1

    LG 42LC3R-zh

    Hi Guys,
    A friend of mine just gave me one of the above to have a look at.
    The screen randomly has all coloured lines running through it but if you turn it off and back on it is fine again for awhile.
    When this happens I tried to switch the source from hdmi to tv and when the snow appears the lines go.
    Then when I switch back to hdmi you can see the faint lines but after a few minutes they disappear and it is fine again.
    Would this be Tcon or main board problem or panel.
    Thanks in advance.
    Redriddick
    Tags: None
    • Diah
      Badcaps Legend
      • Feb 2013
      • 6376
      • Germany
      #2
      Re: LG 42LC3R-zh

      when you switched from HDMI to TV or any at the TV, did you used the remote or pressing on the TV control panel ?

        Comment

        • redriddick
          Senior Member
          • Dec 2014
          • 93
          • Ireland
          #3
          Re: LG 42LC3R-zh

          I used the panel at the side of the tv!!

            Comment

            • Diah
              Badcaps Legend
              • Feb 2013
              • 6376
              • Germany
              #4
              Re: LG 42LC3R-zh

              also when this fault show to you try to click on the TV side or up and down smoothly to see if the lines disappear.. if this happen then you have Tab bound . here over the forum many user did video how to fix it.

                Comment

                • redriddick
                  Senior Member
                  • Dec 2014
                  • 93
                  • Ireland
                  #5
                  Re: LG 42LC3R-zh

                  CLick the buttons up and down to change channel????
                  Is that what you mean???

                    Comment

                    • Diah
                      Badcaps Legend
                      • Feb 2013
                      • 6376
                      • Germany
                      #6
                      Re: LG 42LC3R-zh

                      Originally posted by redriddick
                      CLick the buttons up and down to change channel????
                      Is that what you mean???
                      sorry for the bad typing . with hand hits the TV side smoothly or with finger push the front down forward the screen. if the coloured line changed or disappear.

                        Comment

                        • redriddick
                          Senior Member
                          • Dec 2014
                          • 93
                          • Ireland
                          #7
                          Re: LG 42LC3R-zh

                          No problem I will try that today!!

                            Comment

                            • redriddick
                              Senior Member
                              • Dec 2014
                              • 93
                              • Ireland
                              #8
                              Re: LG 42LC3R-zh

                              No joy with that!!!
                              Something else I noticed:
                              I have my laptop connected to the tv via hdmi,when the screen goes white with the coloured lines if I disconnect the hdmi and reconnect the tv displays as normal!!
                              Surely it would not be a tab bond issue if it does this???

                                Comment

                                • dick_barton
                                  Badcaps Legend
                                  • Aug 2015
                                  • 6643
                                  • Wales
                                  #9
                                  Re: LG 42LC3R-zh

                                  Tap the mainboard around the HDMI sockets to see if there's a poor connection such as the shield being poorly soldered. Also check all the screw holding down the mainboard are firmly in place and not loose.
                                  Willing to help but I'm no expert.

                                    Comment

                                    • ReeceyBurger123
                                      Never Give Up !
                                      • May 2014
                                      • 7325
                                      • Britain
                                      #10
                                      Re: LG 42LC3R-zh

                                      Could be bga solder issue on the cpu, or even bad solder joints on the hdmi ports.
                                      Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                                      https://www.facebook.com/Telford-Tel...7894576335359/

                                        Comment

                                        • redriddick
                                          Senior Member
                                          • Dec 2014
                                          • 93
                                          • Ireland
                                          #11
                                          Re: LG 42LC3R-zh

                                          I think it maybe the hdmi ports as moving the connection up and down brings the picture back.
                                          Now can these be resoldered???

                                            Comment

                                            • ReeceyBurger123
                                              Never Give Up !
                                              • May 2014
                                              • 7325
                                              • Britain
                                              #12
                                              Re: LG 42LC3R-zh

                                              Yes use flux on the pins, and touch them with a timed iron or you could flux the pins and use hot air and reflow it that way.
                                              Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                                              https://www.facebook.com/Telford-Tel...7894576335359/

                                                Comment

                                                • redriddick
                                                  Senior Member
                                                  • Dec 2014
                                                  • 93
                                                  • Ireland
                                                  #13
                                                  Re: LG 42LC3R-zh

                                                  Well guys I tried to reflow the hdmi ports at the weekend and it did'nt work.
                                                  Maybe I made a balls of it I dont know but might try it again tomorrow night.

                                                    Comment

                                                    • redriddick
                                                      Senior Member
                                                      • Dec 2014
                                                      • 93
                                                      • Ireland
                                                      #14
                                                      Re: LG 42LC3R-zh

                                                      well i tried the scart inputs and had the same problem so does this mean its the main board

                                                        Comment

                                                        Previous template Next

                                                        Related Topics

                                                        Collapse
                                                        • Document Archive
                                                          Acer Switch Switch V 10 SW5-017P Hybrid (2-in-1) V 10 Specification for Upgrade or Repair
                                                          by Document Archive
                                                          This specification for the Acer Switch Switch V 10 SW5-017P Hybrid (2-in-1) 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 Switch V 10 SW5-017P boardview and Switch V 10 SW5-017P 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,...
                                                          09-06-2024, 05:30 AM
                                                        • Raulnn
                                                          Xiaomi L55M5-5ASP fine lines on the panel uniform
                                                          by Raulnn
                                                          Good afternoon! Does anyone know how to remove these lines? They are very fine lines at the bottom of the panel. I have 2 identical panels, and I have even thought that this brand has this lattice format, although I highly doubt it.

                                                          The photo from the YouTube app is where it is best seen.

                                                          thanks in advance....
                                                          01-28-2024, 10:30 AM
                                                        • madan1
                                                          Cisco catalyst 2960c POE
                                                          by madan1
                                                          Hello everyone.

                                                          Got a catalyst 2960 from the usual scrapyard - ebay.
                                                          It is stuck in bootloop and the power supply is missing the 3.3v rail. (+12V, -53V, +3.3V)
                                                          Some green moisture crystallization on mainboard, which cleared very well with IPA and visually there is nothing rusted or gone.
                                                          Still working on the PSU to get the 3.3v rail back (waiting for parts), but for now I'm using an external buck converter board hooked up to the 12V rail ( by the way, the switch seems to be working with only 12V ).

                                                          The switch fails to boot due to the following POST error:...
                                                          12-19-2024, 09:34 AM
                                                        • 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
                                                        • Natob82
                                                          Micro Momentary Push Switch?
                                                          by Natob82
                                                          Great to be here! I'm a newbie here trying to find a "micro", momentary push switch to repair a Sony "clamshell" video walkman. This micro switch has long since discontinued by Sony, however I hope there are third-party switches of the same size and functionality that I might be able to source to play the same role. The purpose of this switch is to tell the video walkman that the user has activated the mechanical tape eject button, turning that physical action into an electronic signal that tells the tape transport mechanism to open so one can load or eject a video tape. I...
                                                          12-21-2022, 05:22 AM
                                                        • Loading...
                                                        • No more items.
                                                        Working...