Lines and noise on entire Syncmaster S24B300EL LED. T-con, Panel or...

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  • 2andrewd
    Member
    • Mar 2012
    • 41
    • us
    #1

    Lines and noise on entire Syncmaster S24B300EL LED. T-con, Panel or...

    Okay as you can see from the photos this one has some real non-sense making it extremely hard to play WOW and mine sweeper or anything at all. The viewing angle vertically is about 5 degrees, it's dim and this pattern is pervasive across the whole screen. The ESR on the caps checked out. I've not tested anything else. Any ideas?
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    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Lines and noise on entire Syncmaster S24B300EL LED. T-con, Panel or...

      I'd say it's most likely the t-con. But if it's a new LED, the t-con will be integrated onto the panel.
      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

        • 2andrewd
          Member
          • Mar 2012
          • 41
          • us
          #3
          Re: Lines and noise on entire Syncmaster S24B300EL LED. T-con, Panel or...

          I imagine it would be possible to pull apart this extra 24" ccfl panel i have sitting here and use it's LCD with the LED's backlighting? they are both 30 pin connectors, i haven't looked at the datasheets yet.. what do you think?

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Lines and noise on entire Syncmaster S24B300EL LED. T-con, Panel or...

              Worth a shot. For a computer monitor you gain very little from LED backlighting though.
              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

                • 2andrewd
                  Member
                  • Mar 2012
                  • 41
                  • us
                  #5
                  Re: Lines and noise on entire Syncmaster S24B300EL LED. T-con, Panel or...

                  If i can get 1 working from 2 that don't i'll be happy. would the led logic fire up and let me shine a torch into the ccfl panel to make sure it is going to drive it?

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                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK
                      #6
                      Re: Lines and noise on entire Syncmaster S24B300EL LED. T-con, Panel or...

                      I wouldn't know, sorry... I'd be surprised if the panels were compatible and changing the backlight may be impossible.
                      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

                        • 2andrewd
                          Member
                          • Mar 2012
                          • 41
                          • us
                          #7
                          Re: Lines and noise on entire Syncmaster S24B300EL LED. T-con, Panel or...

                          thanks for the help. i'm leaving everything in the led panel and swapping its lcd with the suspected bad tcon for the other from the ccfl panel.. i'll report back

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                            • 2andrewd
                              Member
                              • Mar 2012
                              • 41
                              • us
                              #8
                              Re: Lines and noise on entire Syncmaster S24B300EL LED. T-con, Panel or...

                              Turns out the panels aren't quite correct dimensions. What tcon components should i aim at when troubleshooting?

                                Comment

                                • 2andrewd
                                  Member
                                  • Mar 2012
                                  • 41
                                  • us
                                  #9
                                  Re: Lines and noise on entire Syncmaster S24B300EL LED. T-con, Panel or...

                                  Anybody? It's getting 5 volts from the logic board and the fuse is passing current. Theres a voltage regulator on the t-con outputting 3.3 and some IC's i haven't researched (very detailed description, i know) Has anyone seen/managed to rectify an issue similar to this, if so... what was the nature of the problem? I plugged the logic board into a different panel and the picture was fine so it's definitely t-con/panel related, i just wonder if its a total wash or not.

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