Technika LED32-248 - Horizontal & Vertical Lines

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Wabby
    Member
    • Apr 2014
    • 30
    • UK
    #1

    Technika LED32-248 - Horizontal & Vertical Lines

    Hi Guys,

    Got an LED with the following image problem (only occurs once an input is put in the main board - until that point the image is clear from a cold start).





    I have changed the TCON and that made no difference. Are these main boards going to be component repairable, or am I best just swapping the board out?

    I assume its the main thats gone?

    Cheers
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Technika LED32-248 - Horizontal & Vertical Lines

      It's more likely to be the panel with that problem. I might have the main board for the 40" version of this if you'd like to try it, but I would be thinking panel more than anything. (Too common of an issue with modern LCD & LED-LCD TVs, cheap panels = poor reliability.)
      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

        • Wabby
          Member
          • Apr 2014
          • 30
          • UK
          #3
          Re: Technika LED32-248 - Horizontal & Vertical Lines

          I thought the screen would point to being OK if the 'No signal' part etc was perfectly fine before something was place into the main board?

          If its the screen, then this bad boy will be making its way to the landfill. lol

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Technika LED32-248 - Horizontal & Vertical Lines

              I can see the lines on the blue screen, even with "No signal"? Am I missing something...?
              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

                • Wabby
                  Member
                  • Apr 2014
                  • 30
                  • UK
                  #5
                  Re: Technika LED32-248 - Horizontal & Vertical Lines

                  Oh yeah - sorry.

                  The blue lines on the no signal screen are only present once you have put a connection to any of the inputs.

                  So if I turn the TV on from cold, it works fine and perfect until I add a source (any source) and then it behaves like this, until a cold start again with no inputs connected.

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK
                      #6
                      Re: Technika LED32-248 - Horizontal & Vertical Lines

                      Hmm, that is odd. Does it matter if the source is powered up? Have you tried applying gentle pressure to the main board to see if there's any difference?
                      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

                        • Wabby
                          Member
                          • Apr 2014
                          • 30
                          • UK
                          #7
                          Re: Technika LED32-248 - Horizontal & Vertical Lines

                          Found this TV again in the back of the middle bedroom, so took it out.

                          It works and fails sporadically. When failing, it does the following:
                          TV Video Issue

                          Working fine at the moment, with occasional flickering like the video above. Gets really bad then back to OK for a while and repeat etc.

                            Comment

                            Previous template Next

                            Related Topics

                            Collapse
                            • x_orange90_x
                              Samsung UN46C8000XFXZA vertical bars/horizontal lines
                              by x_orange90_x
                              I posted about this previously but didn't get any response, and I have some troubleshooted a bit so I have more info.

                              The screen is full of horizontal "gaps" or lines that distort the picture badly, and after about 10 seconds of powering it on the screen starts to fill with red vertical bars that take on the horizontal pattern. After the screen filled with the red bars, they instantly vanished and then slowly started to reappear. I initially thought it was tab bonding failure, but after getting down to them and pressing each one I find zero change in the picture. I went...
                              09-04-2023, 12:09 PM
                            • oxi1158
                              Toshiba TV 55L6200U horizontal lines + vertical bands. Any hope?
                              by oxi1158
                              Hi all,

                              My TV had been showing for the last year some faint horizontal lines on all of its right side, about one out of each 4 of 5 rows of pixels. Not much of a bother, they were unnoticeable when watching a movie. Then, all of a sudden the horizontal lines became much stronger and crossed the whole screen, effectively making it a pain to watch.

                              I watched some youtube video where some guy "fixes" it with some tape on the ribbon cable of the t-con, so I tried that, but to no avail. Actually, after putting the TV back together again things worsened: apart...
                              10-09-2020, 08:37 PM
                            • visionbluedemon
                              Help. Sony kd-65x85dj vertical lines
                              by visionbluedemon
                              First. it has no picture at all. i solved it by covering the ckv lines using tape to to block the connections

                              Second. now has picture but with vertical lines that follow the image. tcon board ic overheating

                              tried blocking LC lines too, but same results



                              is it lcd panel issue or tcon board issue?...
                              Today, 04:56 AM
                            • gpo23
                              Sony KDL-40V3000 - Vertical lines
                              by gpo23
                              Hello,

                              i order a t-con because i had bad colors on my SONY KDL-40V3000 :




                              With the new t-con the color are good but there are vertical lines on all the screen :




                              I've tried the old t-con and it returned to the initial issue (bad colors but no vertical lines)

                              Is there a way to fix the vertical lines on the new t-con ?

                              Thank you for your help

                              gpo23...
                              10-04-2023, 09:11 AM
                            • canadaboy25
                              Samsung PN50A550 Plamsa Vertical and Horizontal lines
                              by canadaboy25
                              Hey everyone,

                              I have a Samsung PN50A550 plasma with a bunch of vertical lines and a couple black horizontal lines/bars.

                              I set the TV up to run the test pattern and all of the lines are still there. The TV also power cycles. It will show the white, red, and green patterns and then powers off and back on shortly after showing the blue pattern.

                              I doubt all of the panel drivers and a few buffer ICs would've gone bad all at once, so that leaves the logic board.

                              Can anyone verify my diagnosis? I would hate to buy a logic board and have it not...
                              02-02-2021, 04:16 PM
                            • Loading...
                            • No more items.
                            Working...