LG 50PQ30 Heatsinks

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  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK
    #41
    Re: LG 50PQ30 Heatsinks

    If control board is shutting down it won't send signal to either so no heat will be produced, also, if the panel is not lit, no heat either as no substantial current is being pumped into 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

      • pposey
        Senior Member
        • Oct 2012
        • 60
        • USA
        #42
        Re: LG 50PQ30 Heatsinks

        Originally posted by tom66
        If control board is shutting down it won't send signal to either so no heat will be produced, also, if the panel is not lit, no heat either as no substantial current is being pumped into it.
        So are you saying that the Z-sus is shutting down the control board or is it possible the control board is faulty as well?

          Comment

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK
            #43
            Re: LG 50PQ30 Heatsinks

            I suspect the control board is detecting a fault in either Y- or Z-sustain and shutting the sustain process down.
            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

              • pposey
                Senior Member
                • Oct 2012
                • 60
                • USA
                #44
                Re: LG 50PQ30 Heatsinks

                ok im about to give up on this thing. I have replaced the y and z sustain and also the control board. The control board now has a light on it blinking but still no picture. Also where before i was getting actually sound out of it, it is no a static sound and i tried changing the input to no avail. Would anybody have a idea on what it could be? This is really frustrating but i do not like anything defeating me lol

                  Comment

                  • pposey
                    Senior Member
                    • Oct 2012
                    • 60
                    • USA
                    #45
                    Re: LG 50PQ30 Heatsinks

                    Any ideas anybody? I really don't wanna dump this TV.

                      Comment

                      • pposey
                        Senior Member
                        • Oct 2012
                        • 60
                        • USA
                        #46
                        Re: LG 50PQ30 Heatsinks

                        Originally posted by pposey
                        Any ideas anybody? I really don't wanna dump this TV.
                        Found the problem! Bottom y buffer board! Thanks for your help!

                          Comment

                          • pposey
                            Senior Member
                            • Oct 2012
                            • 60
                            • USA
                            #47
                            Re: LG 50PQ30 Heatsinks

                            Originally posted by pposey
                            Found the problem! Bottom y buffer board! Thanks for your help!
                            I have one quick question though. When i removed the bad board the upper board would show a picture but it has vertical red and black lines. Is that normal when the other one is removed?

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