LG 42PC1DA Plasma Sound but blank screen

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

    #61
    Re: LG 42PC1DA Plasma Sound but blank screen

    That is usually normal. The buzzing is like this
    https://www.youtube.com/watch?v=-iAm82lhky4&t=1m08s
    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

    • LesWoollam
      Senior Member
      • Nov 2012
      • 69
      • United Kingdom

      #62
      Re: LG 42PC1DA Plasma Sound but blank screen

      The buzzing I'm getting is the same but a lot quieter.

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #63
        Re: LG 42PC1DA Plasma Sound but blank screen

        Hmm, makes me wonder if the panel is bad.
        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

        • LesWoollam
          Senior Member
          • Nov 2012
          • 69
          • United Kingdom

          #64
          Re: LG 42PC1DA Plasma Sound but blank screen

          Looks like this one's destined for the skip

          Comment

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK

            #65
            Re: LG 42PC1DA Plasma Sound but blank screen

            Just to make sure, is the buzzing skipping the occasional beat or changing frequency occasionally like it does in the video, or is it continuous?
            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

            • LesWoollam
              Senior Member
              • Nov 2012
              • 69
              • United Kingdom

              #66
              Re: LG 42PC1DA Plasma Sound but blank screen

              It's continuous.

              Comment

              • tom66
                EVs Rule
                • Apr 2011
                • 32560
                • UK

                #67
                Re: LG 42PC1DA Plasma Sound but blank screen

                That might be normal buzzing from the Y or Z-sustain, it's usually very loud when the panel is cracked.
                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

                • LesWoollam
                  Senior Member
                  • Nov 2012
                  • 69
                  • United Kingdom

                  #68
                  Re: LG 42PC1DA Plasma Sound but blank screen

                  That's what I initially thought but it does sound exactly the same as the buzzing on the video you linked, just a lot quiter. Now I'm confused. . .

                  Comment

                  • pawel125
                    New Member
                    • Nov 2013
                    • 1
                    • us

                    #69
                    Re: LG 42PC1DA Plasma Sound but blank screen

                    hello Any ideas?? bed screen ??- module work ok i have big bum and show the picture
                    Attached Files

                    Comment

                    Related Topics

                    Collapse

                    • mecha1166
                      KDL-60EX500. Comes on fine, sound is fine, backlights come on. Blank screen.
                      by mecha1166
                      KDL-60EX500. Comes on fine, sound is fine, backlights come on. Blank screen. Already tried reset POWER/VOL-. Anyone else have this problem? Possibly bad T-Con RUNTK4244ZZ or panel? Could main or power supply cause this? There were 2 blown 560u 35v on power going to backlights but they were still working fine. Thanks for your help.
                      11-25-2024, 05:22 PM
                    • mrtek
                      Samsung UN65js8500F, no sound, blank screen and T-Con board with one LED on
                      by mrtek
                      Hi I am new to this kind of repairs but I want to learn..I have a Samsung UN65JS8500F. the TV used to work and I tried to fix darker areas in the middle only ( img 1,2,3). I thought the led strip were bad..not the case. I did not research in advance what kind and where the LED were located. In this model they are located vertically on right and left side. Took the TV apart and put it back together. Now the tv shows no welcome screen and no sound is available thru the speakers. ..just a black screen..Backlight LED do turn on...also noticed a 5 blink code , not sure if that was there before. I can...
                      11-26-2024, 09:58 AM
                    • Ryan.man
                      Macbook 2017 with touchbar (A1706) won't turn on after removing the screen
                      by Ryan.man
                      Hello everybody! Posting this in hopes somebody has some expertise that leads to a clear path of troubleshooting that saves me a lot of time!

                      My macbook has the flex cable problem, the one that prevents the screen turning on. Ive been dealing with this for the last 3 years. Last year it went dead and I managed to fix it following youtube tutorials. But my fix wasnt the best, the problem returned a month later. This week, it went dead again. I again tried to fix it.

                      This time the original cable broke too close to the screen, it can't be fixed without tearing the screen...
                      02-04-2025, 12:23 PM
                    • triplefour
                      TCL 65S403 Blank Backlit Screen w/ sound ... voltage besides 12v missing at LVDS
                      by triplefour
                      Blank Backlit Screen w/ sound verified via DVD on HDMi 3
                      no change to display when disconnect tcon
                      no change to display when disconnect panel cables (both sides, one at a time, etc-)
                      can faintly see a vertical dividing line splitting the panel even in half. super faint tho.
                      also can faintly see a black cloud in the center of the screen. a darker area.
                      color of screen is backlit black screen which basically looks gray
                      12v present at TCON fuse
                      other voltages on LVDS cable (TCON side) are missing. only see 2 pins with voltage .69v and .60v
                      ...
                      10-28-2021, 01:00 AM
                    • Rozp
                      70LE660U dark cloud or black screen with sound.
                      by Rozp
                      Hello Everyone,

                      This is my first post so I will try to be as precise as possible without making this post too long winded. Unfortunately I don't have pictures of the original problem but I included images of the TV internals.

                      I have a Sharp 70LE660U. The problem started a few months ago with the bottom row looking out of sync and was dark on the left side and then fading to transparent on the right side. Shortly after, a dark cloud appeared in the center of the screen. The dark cloud started small and shaded but the image was visible. It also affected the menu area....
                      08-29-2023, 05:25 PM
                    • Loading...
                    • No more items.
                    Working...