Lg 42pc3d

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  • Aquarius89
    Member
    • Dec 2011
    • 18
    #1

    Lg 42pc3d

    Hey there, I have my beautiful ( but at the moment useless) LG 42". I have studied some of the forums with similar problems in the same model ( No picture, but sound) And heard that the problem could be minor or fairly major. Its important to not that I have ZERO experience, but some mild back ground working on computers ( building them), I was still absolutely lost when i pulled the frame off the back of this beast.

    So, I need some assistance obviously with trouble shooting while I do a Google search for maybe finding some sort of technical manual in PDF format.
    Tags: None
    • PlainBill
      Badcaps Legend
      • Feb 2009
      • 7034
      • USA
      #2
      Re: Lg 42pc3d

      The service manual can be found at Elektrotanya. It's the second on the list.

      This TV is notorious for failures in the Z-Sustain and the Y-Sustain, commonly the hybrid. The hybrid is expensive ($40) and difficult to remove. There are a number of repair services on eBay, or you may find a new or repaired one available. A failure of the Z-Sustain results in a very dark picture, with a faint image visible at the right side. A failure in the Y-Sustain results n a completely black screen.

      PlainBill
      Last edited by PlainBill; 12-02-2011, 07:18 AM.
      For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

      Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

        Comment

        • Aquarius89
          Member
          • Dec 2011
          • 18
          #3
          Re: Lg 42pc3d

          I read a another thread that suggested shining a bright LED light at the screen to see if there is any color at all, I attempted this and its completely black, but the screen does "prime" with no picture at all. and this is likely the Z-sus you say? Might I ask the technical level of replacing it.
          Last edited by Aquarius89; 12-02-2011, 02:59 PM.

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Lg 42pc3d

              Originally posted by Aquarius89
              I read a another thread that suggested shining a bright LED light at the screen to see if there is any color at all, I attempted this and its completely black, but the screen does "prime" with no picture at all. and this is likely the Z-sus you say? Might I ask the technical level of replacing it.
              That's an LCD thing.

              If you have the "prime" glow from the plasma, the Y-sus is quite likely okay. I would say Z-sus. A quick check: Turn on the TV for 30 mins, then turn it off. Feel the heatsinks of the Y-sus and Z-sus. Are either warm?

              Can you post a pic of the Z-sus? There are usually a few fuses on them that can sometimes blow even without a fault.
              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

                • PlainBill
                  Badcaps Legend
                  • Feb 2009
                  • 7034
                  • USA
                  #5
                  Re: Lg 42pc3d

                  Originally posted by Aquarius89
                  I read a another thread that suggested shining a bright LED light at the screen to see if there is any color at all, I attempted this and its completely black, but the screen does "prime" with no picture at all. and this is likely the Z-sus you say? Might I ask the technical level of replacing it.
                  Lose the colors. You really don't want to do anything that makes it difficult to read your posts.

                  Replacing the Z-sustain is moderately easy. Four or five mounting screws, 5 connectors (one of which is a pain), and one adjustment to do after installing the replacement. It's a lot easier than pulling the back off- those metal edges are sharp!

                  PlainBill
                  For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

                  Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

                    Comment

                    • muskin
                      Senior Member
                      • Nov 2011
                      • 64
                      #6
                      Re: Lg 42pc3d

                      If you have a meter you can check the fuses. My z-sustain board blew one of the fuses and I just replaced the board. Pretty simple like Bill said.

                        Comment

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