insignia NS-L47Q09-10A no sound or picture

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  • Agent24
    I see dead caps
    • Oct 2007
    • 4951
    • New Zealand
    #61
    Re: insignia NS-L47Q09-10A no sound or picture

    A 3.3v power adapter\wall-wart could work, or maybe even a computer PSU, preferably a cheap one that won't care too much about driving a shorted load.
    "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
    -David VanHorn

      Comment

      • Agent24
        I see dead caps
        • Oct 2007
        • 4951
        • New Zealand
        #62
        Re: insignia NS-L47Q09-10A no sound or picture

        Originally posted by jose6326
        I need help deciding which board to buy

        My board is 715G3269-1 (TQ9C8 ZK05201)


        The following has the same board number but different bar code number and is missing an hdmi port It was not removed it was manufactured this way

        http://www.ebay.com/itm/291165195578...torefresh=true


        The following has the same board number but different bar code number but is exactly like the board I have

        http://www.ebay.com/itm/261498450350...84.m1423.l2649


        I think either one will work
        Sorry, but I don't know. Hopefully someone else can give better advice on which board would work.
        "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
        -David VanHorn

          Comment

          • jose6326
            Badcaps Veteran
            • May 2013
            • 707
            • USA
            #63
            Re: insignia NS-L47Q09-10A no sound or picture

            Ok I replaced the main board and now I have the red led on

            But the tv still does not turn on

            Im guessing the main board is good since it turned the led on?

            What else should I test?

              Comment

              • Agent24
                I see dead caps
                • Oct 2007
                • 4951
                • New Zealand
                #64
                Re: insignia NS-L47Q09-10A no sound or picture

                I guess the power supply is bad or it is not getting the power up signal for some reason

                Could also be a problem with power button itself or remote sensor (I assume you tried both?)

                Could even be another faulty mainboard if it is 2nd hand.
                "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
                -David VanHorn

                  Comment

                  • jose6326
                    Badcaps Veteran
                    • May 2013
                    • 707
                    • USA
                    #65
                    Re: insignia NS-L47Q09-10A no sound or picture

                    Well the main board is good

                    I decided to disconnect the tcon from the main board
                    I pressed the power button and the red led turned to blue and after 5 seconds the panel flashed

                    So I disconnected the power cord reconnected the tcon cable to the main board
                    I connected the power cord pressed the power button the tv screen turned on

                    The bad news is that the panel is freaking cracked!

                    I thought I properly checked it but apparently I did not.
                    Luckily I spent 20 bucks on the set but I spent 50 on the main board

                    So I guess im going to list the parts on ebay and craigslist

                    Lesson learned
                    Next time I will do a better job of inspecting the panel


                    Thanks for all the help

                      Comment

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