Lg plasma shorted panel shorted buffers?

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  • Poor Flick
    Of sound mind
    • Jun 2014
    • 3167
    • U.S.S.A. The flophouse of the world.
    #1

    Lg plasma shorted panel shorted buffers?

    LG 60PA6500-UA
    Anyone know if a panel with bad COFs or short(s) will damage sus buffers and/or address buffers? Any other collateral damage from a bad panel? I'm wanting to find the same model tv, used, so I have spare parts if needed. ShopJimmy won't take back what I've bought. Thanks everyone!
    From my favoritest movie ever!:
    Cledus Snow: Can I ask you a question?
    Bo Darville: Sure, ask me what?
    Cleedus: What the Hell do we want to go to Texas for and haul beer back here? What is that?
    Bo: For the good old American life. For the money, the glory, and the fun. Mostly for the money.
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Lg plasma shorted panel shorted buffers?

      Yes, the particular panel faults on these damage the top Y-buffer boards. Hence why there almost no top Y-buffer boards in stock, but tons of lower Y-buffer boards. The Y-sustain has nothing to do with their failure; it's the panel, unfortunately.
      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

        • Poor Flick
          Of sound mind
          • Jun 2014
          • 3167
          • U.S.S.A. The flophouse of the world.
          #3
          Re: Lg plasma shorted panel shorted buffers?

          Thanks, Tom. Would there be obvious damage, hot spots or burns?
          Would it just be the sus buffers or would the address buffers fail also? I've inspected the panel ribbons several times, I didn't see any rubbing damage, maybe LG fixed that issue by the time mine was built.
          Could my logic board be damaged? Mine is connected to the 3 address buffers and then the panel COFs after that. Thanks!
          Last edited by Poor Flick; 08-28-2014, 06:04 AM.
          From my favoritest movie ever!:
          Cledus Snow: Can I ask you a question?
          Bo Darville: Sure, ask me what?
          Cleedus: What the Hell do we want to go to Texas for and haul beer back here? What is that?
          Bo: For the good old American life. For the money, the glory, and the fun. Mostly for the money.

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Lg plasma shorted panel shorted buffers?

              Sorry I think I am getting confused - your TV is the one with vertical lines, right?
              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

                • Poor Flick
                  Of sound mind
                  • Jun 2014
                  • 3167
                  • U.S.S.A. The flophouse of the world.
                  #5
                  Re: Lg plasma shorted panel shorted buffers?

                  Yes, Tom, mine had the thin colored vertical lines. The general consensus is the panel is bad. I was hoping to salvage some parts to use if needed on another LG 60PA6500-UA Thanks!
                  Attached Files
                  Last edited by Poor Flick; 08-28-2014, 12:09 PM.
                  From my favoritest movie ever!:
                  Cledus Snow: Can I ask you a question?
                  Bo Darville: Sure, ask me what?
                  Cleedus: What the Hell do we want to go to Texas for and haul beer back here? What is that?
                  Bo: For the good old American life. For the money, the glory, and the fun. Mostly for the money.

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK
                      #6
                      Re: Lg plasma shorted panel shorted buffers?

                      I would say the Y-sustain, Z-sustain, control board, PSU, and main board can be trusted.
                      The Y-buffers are a "maybe"...
                      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

                        • Poor Flick
                          Of sound mind
                          • Jun 2014
                          • 3167
                          • U.S.S.A. The flophouse of the world.
                          #7
                          Re: Lg plasma shorted panel shorted buffers?

                          Thanks Tom, would there be burn marks or anything else obvious on the Y buffers?
                          Do you think the address buffers survived? There's not many parts on those.
                          Thanks!
                          From my favoritest movie ever!:
                          Cledus Snow: Can I ask you a question?
                          Bo Darville: Sure, ask me what?
                          Cleedus: What the Hell do we want to go to Texas for and haul beer back here? What is that?
                          Bo: For the good old American life. For the money, the glory, and the fun. Mostly for the money.

                            Comment

                            • tom66
                              EVs Rule
                              • Apr 2011
                              • 32560
                              • UK
                              #8
                              Re: Lg plasma shorted panel shorted buffers?

                              The address buffers are probably OK, but then again they are very rare failures and on modern panels are bonded to the panel so they can't be removed.
                              As for the Y-buffers, since they are not obviously shorted (you would have no image at all) then I would say they are not worth the potential risk.
                              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

                                • Poor Flick
                                  Of sound mind
                                  • Jun 2014
                                  • 3167
                                  • U.S.S.A. The flophouse of the world.
                                  #9
                                  Re: Lg plasma shorted panel shorted buffers?

                                  Thank You very much, Tom
                                  From my favoritest movie ever!:
                                  Cledus Snow: Can I ask you a question?
                                  Bo Darville: Sure, ask me what?
                                  Cleedus: What the Hell do we want to go to Texas for and haul beer back here? What is that?
                                  Bo: For the good old American life. For the money, the glory, and the fun. Mostly for the money.

                                    Comment

                                    • SydF
                                      New Member
                                      • Apr 2017
                                      • 3
                                      • Australia
                                      #10
                                      Re: Lg plasma shorted panel shorted buffers?

                                      Hi I have a question, but I'm not sure where I should ask it. Is this just the reply area ?
                                      My question relates to plasma panel faults. If a panel develops a fault (s/c) that destroys the z sus igbts, what has happened to the panel and can this fault be identified/proved i.e. measured with a meter. My query relates to an LG50PS80E TV that has been diagnosed by a TV repair shop with a faulty panel.

                                        Comment

                                        • heavymachines
                                          Badcaps Legend
                                          • Mar 2011
                                          • 1028
                                          • United States
                                          #11
                                          Re: Lg plasma shorted panel shorted buffers?

                                          Yes if there is any faults with igbt on ymain it can be tested with meter . I suggest upload pictures of fault.

                                            Comment

                                            • SydF
                                              New Member
                                              • Apr 2017
                                              • 3
                                              • Australia
                                              #12
                                              Re: Lg plasma shorted panel shorted buffers?

                                              Hi Thanks for such a quick reply I don't have any pics to show unless a pic of the whole TV inside, I have removed the z sus board and am in the process of replacing the igbts and fuse. It's just that as the repair mob had said that "the panel module had a short that had made the main board to fail" I was cautious in reinstalling the z sus board just to watch it go "pop " again. So I went looking for info and found this site, I can't imagine what actually causes the problem. If the panel can be checked for s/cs I can save myself some heartache by not going any further.
                                              I think I've attached a pic of the back of the TV.
                                              Thanks again
                                              BobF
                                              Attached Files

                                                Comment

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