Announcement

Collapse
No announcement yet.

LG 50PC3D Issue

Collapse
X
Collapse
 
  • Page of 4
  • Filter
  • Time
  • Show
Clear All
new posts
Previous 1 2 3 4 template Next
    #1

    LG 50PC3D Issue

    Hello! I recently came across this TV and decided to get my hands dirty and see what it takes to fix it while learning more about plasma tv's in the process.

    So far I've learned a ton and mostly from these forums, so thanks in advance!

    It's an LG 50pc3d UD

    I have replaced the YSUS and both YDRV / Y-buffers.
    Was a bit bummed out when I replaced the buffers, there was no change at all. They were only $21 a piece so I'm not too burnt.

    Attached is where I'm currently at, and I'm pretty baffled at this point. Pink lines, split screen.
    There is audio and clearly a picture behind it. I've tested antenna and hdmi with the same results.
    Inspected all caps etc, no visible damage or issues there.
    I'm wondering if it's loose or bad connections?

    Everything else seems to be functioning but as my username states, I am not a pro in this field.

    Any ideas? I appreciate any help I can get!
    Attached Files
    Tags: None
    #2
    Re: LG 50PC3D Issue

    I'd say logic board but let Tom66 chime in,he's the pro at plasmas.....
    Proud owner of dozens of broken TV's and many,many,many boards.


    Our website and passion:http://hollenhundshepherds.com/

    Comment

      #3
      Re: LG 50PC3D Issue

      I was thinking the same thing.

      Comment

        #4
        Re: LG 50PC3D Issue

        Well if it's only a $30 part, I might just try that board as well. I'll see if anyone else agrees or has other ideas and order it Monday probably. THanks!

        Comment

          #5
          Re: LG 50PC3D Issue

          Anyone else care to chip in with some advice before I order this part? I can provide more pics if necessary, thanks!

          Comment

            #6
            Re: LG 50PC3D Issue

            I'm about to order this part but would really appreciate if anyone else could give their opinion on what they think needs to be replaced.

            Found a logic board for $30 but would really like to avoid replacing unnecessary parts if possible!

            Thanks!

            Comment

              #7
              Re: LG 50PC3D Issue

              Y-sus Vsc voltage bad would be a guess; have you tried checking the Vsc and -Vy compared to panel rating? I think the control/logic is OK for now.
              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

                #8
                Re: LG 50PC3D Issue

                I have not, but I just replaced the YSUS last week. I got it off ebay.

                Could you give me any more info on how to test this?

                Should I contact the ebay seller about a defective part?

                Thank you for the response, I really appreciate your assistance.

                Comment

                  #9
                  Re: LG 50PC3D Issue

                  Can you supply a picture of your Y-sus?
                  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

                    #10
                    Re: LG 50PC3D Issue

                    I'm at work right now, but if you need an "installed picture" I can get you one tonight.

                    For now, I can give you the ebay pictures from the auction I purchased if it helps.

                    http://www.ebay.com/itm/261447989535...84.m1497.l2649

                    Comment

                      #11
                      Re: LG 50PC3D Issue

                      OK in your case Vscan tested across top and middle metal plates where the buffers connect - should be around 150V.
                      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

                        #12
                        Re: LG 50PC3D Issue

                        Sorry, I'm not 100% sure what that means hahaha. Would you mind explaining a bit more?

                        Comment

                          #13
                          Re: LG 50PC3D Issue

                          The metal plates sticking out of the Y-sus connecting to the buffers, do you see them?
                          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

                            #14
                            Re: LG 50PC3D Issue

                            Yup, there are 3 of them correct?

                            The "top" referring to when its installed I assume?

                            Sorry, my electrical experience is very little. I do have a buddy who is pretty knowledgable about these things though.
                            If you could give me an idea of what tool I need and basic steps to test it I would appreciate it!

                            Comment

                              #15
                              Re: LG 50PC3D Issue

                              You would need a digital multimeter; do you have one?
                              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

                                #16
                                Re: LG 50PC3D Issue

                                I have access to one, yes.

                                Comment

                                  #17
                                  Re: LG 50PC3D Issue

                                  OK, when you can, can you send a picture of it so we know what you have and how to work with it.
                                  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

                                    #18
                                    Re: LG 50PC3D Issue

                                    What's your -vy voltage doing. Fluctuating perhaps?
                                    Did I leave the soldering iron on?

                                    Comment

                                      #19
                                      Re: LG 50PC3D Issue

                                      I was going to borrow one from my parents, but I haven't gotten them to confirm that they still have it.

                                      If they don't have it, I was going to purchase this :
                                      http://www.homedepot.com/p/Klein-Too...1000/202521270

                                      Will that work? Need something better?

                                      Comment

                                        #20
                                        Re: LG 50PC3D Issue

                                        Found a cheaper one that I can pick on my way home tonight.

                                        Will this work?

                                        http://www.radioshack.com/product/in...ductId=4214667

                                        Comment

                                        Previous 1 2 3 4 template Next
                                        Working...