LG M2262D TV is not turning on

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  • tibimakai
    Badcaps Legend
    • Jan 2012
    • 3680
    • USA
    #41
    Re: LG M2262D TV is not turning on

    Here is a video with the problem.
    Panel gutted to be able to see the tubes.
    PS is powered through a resistor from the 5.2V to ON pin.
    https://www.dropbox.com/s/k3s4zj50zn...320_161355.mp4
    Last edited by tibimakai; 03-20-2013, 07:31 PM.

      Comment

      • tibimakai
        Badcaps Legend
        • Jan 2012
        • 3680
        • USA
        #42
        Re: LG M2262D TV is not turning on

        I have just purchased a new PS from the bay for $25 and now it's working properly, no more blinking.

          Comment

          • tibimakai
            Badcaps Legend
            • Jan 2012
            • 3680
            • USA
            #43
            Re: LG M2262D TV is not turning on

            I have installed the new power supply and the TV works, but it makes a buzzing sound.
            It makes the buzzing sound when there is no signal, or dark images.
            As I increase the backlight setting, the buzzing goes away.
            What this could be?

              Comment

              • tibimakai
                Badcaps Legend
                • Jan 2012
                • 3680
                • USA
                #44
                Re: LG M2262D TV is not turning on

                No ideas?
                The seller offered to send a new board, but I would like to be sure that the PS is at fault and not something else, like tubes, or who knows what else.
                I have just received a CCFL tester and I will double check the tubes to be sure that they are working all four of them properly.

                  Comment

                  • supracomp
                    New Member
                    • Jun 2013
                    • 2
                    • hrvatska
                    #45
                    Re: LG M2262D TV is not turning on

                    Can somebody read value of R111 resistor, near trafo on powerboard. Thank you

                      Comment

                      • tibimakai
                        Badcaps Legend
                        • Jan 2012
                        • 3680
                        • USA
                        #46
                        Re: LG M2262D TV is not turning on

                        I will look at the board when I get home.

                          Comment

                          • tibimakai
                            Badcaps Legend
                            • Jan 2012
                            • 3680
                            • USA
                            #47
                            Re: LG M2262D TV is not turning on

                            The board that I have is the broken one.
                            That resistor doesn't have the regular color rings. It's a green resistor with a couple of logos and the only marking that makes sens is 2A. I have measured it out of the circuit and shows 0 OHM. Maybe it's a fusible resistor of a very small value. On the auto scale shows between 0.03-0.05.
                            It looks like this:
                            http://www.ebay.com/itm/5x-2A-2M-M-R...957#vi-content
                            Last edited by tibimakai; 06-05-2013, 09:56 PM.

                              Comment

                              • supracomp
                                New Member
                                • Jun 2013
                                • 2
                                • hrvatska
                                #48
                                Re: LG M2262D TV is not turning on

                                Thank you. I put a piece of wire instead it, now it is working.

                                  Comment

                                  • budm
                                    Badcaps Legend
                                    • Feb 2010
                                    • 40746
                                    • USA
                                    #49
                                    Re: LG M2262D TV is not turning on

                                    That is 2Amp PICO fuse.
                                    Never stop learning
                                    Basic LCD TV and Monitor troubleshooting guides.
                                    http://www.badcaps.net/forum/showthr...956#post305956

                                    Voltage Regulator (LDO) testing:
                                    http://www.badcaps.net/forum/showthr...999#post300999

                                    Inverter testing using old CFL:
                                    http://www.badcaps.net/forum/showthr...er+testing+cfl

                                    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                                    http://s807.photobucket.com/user/budm/library/

                                    TV Factory reset codes listing:
                                    http://www.badcaps.net/forum/showthread.php?t=24809

                                      Comment

                                      • Dumah Brazorf
                                        Senior Member
                                        • Jun 2013
                                        • 179
                                        • Italy
                                        #50
                                        Re: LG M2262D TV is not turning on

                                        Fixed one that suddenly shutted off with no sign of life.
                                        Replaced the ic strw6252, the picofuse (oddily placed on the hot side) and the schottky rectifier mbr10150 that failed at one of the two sides.

                                          Comment

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