Insignia NS-LCD32 black screen, varying colored vertical lines

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #21
    Re: Insignia NS-LCD32 black screen, varying colored vertical lines

    Originally posted by koerneka
    No luck with the input buttons - the only buttons on the side of the TV are Chan ^/v, Vol >/<, Input, Menu, and Power.

    Further, I removed the metal shields from the logic board - there are about 16 "Chang" capacitors and a few "JH" caps as well. None look visibly damaged. Looked for components marked with an "F" or that seemed like a fuse, but found none. I can try to post some pictures soon... Are Chang or JH caps known for failure?
    On my LG you just have to press Input multiple times no down arrow.
    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

    • Dgtech
      E. Technician
      • Apr 2009
      • 1462
      • Steeler

      #22
      Re: Insignia NS-LCD32 black screen, varying colored vertical lines

      Resurrecting this thread -

      I have the same set and same problem. I already tried changing out the Tcon board and now I'm stuck having to pay too much for the main board. I'm hoping I can find something wrong with the main board that is fixable.
      The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

      Comment

      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
      • srs
        Insignia NS-50DR620NA18 w/ large vertical lines & no picture
        by srs
        I'm not sure what to do next and came here since y'all helped me fix a 50" plasma TV back in 2014, which is still working!

        A friend gave me an Insignia NS-50DR620NA18 50" TV that suddenly developed large vertical lines on it. He said he had no idea what might have caused it and has replaced it with a larger TV. He was going to throw it away.

        I did not notice any bulged or leaking caps on any board, the voltages produced by the power supply match the voltage that the pins are marked. The backlight leds are working. I have tried cleaning the ribbon cables...
        04-22-2023, 02:40 PM
      • daxlw
        Insignia NS-50DR620NA18 vertical colored lines no picture
        by daxlw
        Insignia NS-50DR620NA18 has vertical colored lines, no picture. swapped out tcon board but same issue.



        ...
        04-03-2020, 03:31 PM
      • rapid911
        Vizio M58Q7 colored horizontal lines
        by rapid911
        Hi guys, I have a Vizio M58Q7-J01 and now there are some colored horizontal lines on the screen. Could someone tell me if it's probably a panel issue or something related to other parts and can be fixed? Thank you in advance....
        05-28-2023, 04:17 PM
      • Stanley1843
        Screen Display Vertical Multicolor Lines
        by Stanley1843
        Hello, I have a screen in where sometimes when I open it pop-up vertical multicolor lines (I would say the most of them are green). If I tun off and turn on the screen the lines dissapear or if I leave open the screen after approximately five minutes the lines gone. I measured the below voltages on the main PCB and on the T-CON board and the voltages are the same when it doesn’t display the vertical lines and when it displays the vertical lines. Also, I cleaned all the connectors very good with IPA. I moved back and forth the connectors and the COF tabs but the vertical lines didn't displayed...
        06-29-2024, 11:54 AM
      • Loading...
      • No more items.
      Working...