Lg 50pv450

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  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK
    #41
    Re: Lg 50pv450

    I don't trust those readings. If it were truly over 500V then the Y-sustain would be severely damaged - suggest you check your probes and location of testing.
    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

      • TennesseePaul
        Member
        • Oct 2013
        • 29
        • USA
        #42
        Re: Lg 50pv450

        I will. I have a better tool at my office I will procure for an evening.

        Am I measuring the correct points?

          Comment

          • weimars
            Member
            • Dec 2013
            • 13
            • United States
            #43
            Re: Lg 50pv450

            I was wondering if anything has been resolved from this diagnosis? It looks like the thread just ended. I'm researching an only sound, no video problem from my LG 60PV450 and was reading from this thread interested on how it turned out. Thanks for the update if possible. Maybe I'll just start a new thread...

              Comment

              • jb_gt_84
                Repair hobbyist
                • Dec 2013
                • 9
                • United States
                #44
                Re: Lg 50pv450

                Hi, I'm a newbie who also has a LG 50PV450 w/ this same problem.
                I'm also curious about a resolution.

                  Comment

                  • weimars
                    Member
                    • Dec 2013
                    • 13
                    • United States
                    #45
                    Re: Lg 50pv450

                    Originally posted by jb_gt_84
                    Hi, I'm a newbie who also has a LG 50PV450 w/ this same problem.
                    I'm also curious about a resolution.
                    Check out this thread...

                    https://www.badcaps.net/forum/showthread.php?t=33717

                    It shows what I did to fix my tv. It turns out to be a bad main board. Good luck.

                      Comment

                      • TennesseePaul
                        Member
                        • Oct 2013
                        • 29
                        • USA
                        #46
                        Re: Lg 50pv450

                        Sorry for the delayed response. Finally got a good meter home. World of difference that makes!
                        So, with the ysus unplugged from the panel and Zsus, I dialed in the voltages spot on. Waiting for the caps to dissipate before reconnecting. Just excited to use a good meter.

                          Comment

                          • TennesseePaul
                            Member
                            • Oct 2013
                            • 29
                            • USA
                            #47
                            Re: Lg 50pv450

                            Still the same result. No white fuzz even when not connected to a video source. The screen is not completely lit, then half lit, then off.

                              Comment

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