Problem with Samsung ps43d490 PDP

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  • Sabenhaz
    New Member
    • Oct 2014
    • 8
    • England

    #141
    Re: Problem with Samsung ps43d490 PDP

    Not while it was on but a couple of mins later...surely not! Not after all my hard work

    Comment

    • Sabenhaz
      New Member
      • Oct 2014
      • 8
      • England

      #142
      Re: Problem with Samsung ps43d490 PDP

      Thanks Tom
      Damm after all my hard work to get it working that happens..
      Sab

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #143
        Re: Problem with Samsung ps43d490 PDP

        Just to make sure, could you share a picture of the exact fault in question.
        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

        • Sabenhaz
          New Member
          • Oct 2014
          • 8
          • England

          #144
          Re: Problem with Samsung ps43d490 PDP

          ok thanks
          Here it is
          Attached Files

          Comment

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK

            #145
            Re: Problem with Samsung ps43d490 PDP

            It's usually bad panel but not due to your cause. If you bought the TV faulty that will have been present anyway. It's very rare on these particular panels.

            You could try swapping the buffer board but I'd be surprised if it fixed the issue.
            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

            • Sabenhaz
              New Member
              • Oct 2014
              • 8
              • England

              #146
              Re: Problem with Samsung ps43d490 PDP

              Seems to be one complete row of pixels.. Hhmm! dont really want to spend any more money on it unless I was certain it was going to fix it.
              Thanks for your help
              Sab

              Comment

              • Sabenhaz
                New Member
                • Oct 2014
                • 8
                • England

                #147
                Re: Problem with Samsung ps43d490 PDP

                Hi Tom
                Decided to bite the bullet and bought a used buffer board off ebay. When I fitted it I discovered that it was faulty and had no picture at all. I fitted the old one back on and instead of having one thin black line I now had two thicker (two or three pixels) black lines about 4 inches apart.
                I decided to disconnect the second from bottom ribbon connector on the buffer board and found that the screen showed a thick four inch black band across the screen. I had marked where the two black lines were on the frame and they correspond exactly with the top and bottom of the black band.
                It would seem the fault is something to do with connections at this point
                Would appreciate your thoughts
                Regards
                Sab

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK

                  #148
                  Re: Problem with Samsung ps43d490 PDP

                  It can be the connection between that orange ribbon (FPC) and the plasma panel, I don't know if that could be fixed.
                  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

                  • Sabenhaz
                    New Member
                    • Oct 2014
                    • 8
                    • England

                    #149
                    Re: Problem with Samsung ps43d490 PDP

                    Hi Tom
                    Have just noticed a very small tear in what you call the orange fpc data connection cable. It seems to expand over four threads\wires. If this is the prob can these be renewed or repaired?
                    Cheers
                    Sab

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK

                      #150
                      Re: Problem with Samsung ps43d490 PDP

                      Unfortunately, not as far as I am aware. They are glued to the panel, not replaceable. You could attempt soldering fine wires to them after stripping the insulation off, but I don't expect that to work.
                      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

                      • Agent24
                        I see dead caps
                        • Oct 2007
                        • 4940
                        • New Zealand

                        #151
                        Re: Problem with Samsung ps43d490 PDP

                        Originally posted by tom66
                        They are glued to the panel, not replaceable.
                        Glued or soldered? I thought they were done with something like this: http://www.fancort.com/Products/Hot-...g-Bonding.html
                        "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
                        -David VanHorn

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK

                          #152
                          Re: Problem with Samsung ps43d490 PDP

                          For plasma, it's glued.
                          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

                          • csabex
                            Member
                            • Sep 2017
                            • 15
                            • Hungary

                            #153
                            Re: Problem with Samsung ps43d490 PDP

                            Hello everybody. I have a ps43d490a1w and the picture is displayed with red pixels as you can see in the attached picture. The problem started with no image and sound ok, but after 4 or 5 on/off cycles everything was ok and the picture didn't vanished. Now the picture stays, but i get this red pixels... I noticed that the pixels are more often with the media box of cable tv supplier, but if i watch a movie from PC the red pixels are not as many as on the media box source... What do you think, x and y change, or this simptome is dead panel and doesn't worth to try the x and y replacement? Thank you and sorry for bad english

                            Best regards,
                            Csabex.
                            Attached Files

                            Comment

                            • tom66
                              EVs Rule
                              • Apr 2011
                              • 32560
                              • UK

                              #154
                              Re: Problem with Samsung ps43d490 PDP

                              Check the Y-main board for a cold or cracked solder joint on one of the transistors. It's a common fault and it will cause picture issues.

                              If it's this, then you can just solder the pin to repair 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

                              • csabex
                                Member
                                • Sep 2017
                                • 15
                                • Hungary

                                #155
                                Re: Problem with Samsung ps43d490 PDP

                                Hi Tom,

                                First of all thank you for the reply and suggestion. I just finished a few minutes ago with the resolder, and indeed it was two transistors poorly soldered, but the problem still remained Voltages are ok, 206 and 58 i measured. Ibelive remains the replacement of the boards... I link in what i found on ebay and please give me an advice that i am good to go with them? Here they are:
                                X-Main and Y-Main The Xis the same rev,but Y is not even 1.8, it is 1.9. That would be ok?
                                Thank you in advance.
                                Last edited by csabex; 09-19-2017, 09:30 AM.

                                Comment

                                • csabex
                                  Member
                                  • Sep 2017
                                  • 15
                                  • Hungary

                                  #156
                                  Re: Problem with Samsung ps43d490 PDP

                                  Finaly i have found panels with the same revision on ebay. After i change them i need to do a firmware upgrade to the latest one that it is 1029.0 in my case? If so, why i need to do? The firmware isn't stored on the main panel, or the logic board?

                                  Comment

                                  • tom66
                                    EVs Rule
                                    • Apr 2011
                                    • 32560
                                    • UK

                                    #157
                                    Re: Problem with Samsung ps43d490 PDP

                                    Firmware is on the logic board. You should only need to update firmware if your set has an X-main fault or is built before a specific date. See here.
                                    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

                                    • csabex
                                      Member
                                      • Sep 2017
                                      • 15
                                      • Hungary

                                      #158
                                      Re: Problem with Samsung ps43d490 PDP

                                      I checked the link and my model isn't on the list. I have the PS43D490A1W model. This means, that i have nothing to do?

                                      Comment

                                      • tom66
                                        EVs Rule
                                        • Apr 2011
                                        • 32560
                                        • UK

                                        #159
                                        Re: Problem with Samsung ps43d490 PDP

                                        Originally posted by csabex
                                        I checked the link and my model isn't on the list. I have the PS43D490A1W model. This means, that i have nothing to do?
                                        I do not know for sure, but I think it applies to all D4x sets, i.e. D440, D450, and D490 (3D).
                                        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

                                        • csabex
                                          Member
                                          • Sep 2017
                                          • 15
                                          • Hungary

                                          #160
                                          Re: Problem with Samsung ps43d490 PDP

                                          Ok, thank you. As i have the panels and finish with the replacement, i will get back with the details.

                                          Comment

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