maxent MX-50HPT51 Plasma no picture

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  • ntehicks
    Badcaps Veteran
    • Mar 2011
    • 272
    • United States
    #21
    Re: maxent MX-50HPT51 Plasma no picture

    so I have tested the tv some more. I don't think the tv is even turning on. I have tested standby and I get 5v but when I press the power button I dont get anything on PS-on. is there anything I can test on the main board that could be causing this.

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      • ntehicks
        Badcaps Veteran
        • Mar 2011
        • 272
        • United States
        #22
        Re: maxent MX-50HPT51 Plasma no picture

        I purchased a main board today. I installed it and now the tv turns on and off I have OSD menu. the question I have is that 4 inches of the screen is not working. I would think that if it was a problem with the screen or ribbon cable then the osd that would normaly show in the spot that is not working would not move over and show up perfectly. so the question I have is did I get the wrong main board. I know that the main board is used in a 42 as well as my 50 can anyone shed some light on this for me thanks so much for your help.

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          • ntehicks
            Badcaps Veteran
            • Mar 2011
            • 272
            • United States
            #23
            Re: maxent MX-50HPT51 Plasma no picture

            in my last post I mentioned that part of the screen is not working. I wanted to clarify that it is 4 inches on the right side of the tv. almost like it is a 40" screen working on a 50" TV the picture is complete and looks great except it does not fill in the full screen. I have looked in the menu to see if I can change something but no matter what I do it won't fill in the screen.

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              • ntehicks
                Badcaps Veteran
                • Mar 2011
                • 272
                • United States
                #24
                Re: maxent MX-50HPT51 Plasma Help find part...

                I have replaced the main board in this tv. the new board has all the same part numbers and markings as well as connecters. I am now told that the board I put in this TV is for a 42". Does anyone know where I could get a part number for the right board. thanks.

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                  • ntehicks
                    Badcaps Veteran
                    • Mar 2011
                    • 272
                    • United States
                    #25
                    Re: maxent MX-50HPT51 Plasma no picture

                    I am wondering if I did a firmware update to this main board if that could fix the issue. I know that the same board can be used for several tv's. could it just be that I need to update the firmware and then it would work for the 50.

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                      • ntehicks
                        Badcaps Veteran
                        • Mar 2011
                        • 272
                        • United States
                        #26
                        Re: maxent MX-50HPT51 Plasma no picture

                        Ok I have a question. so I put in the new main board that I purchased and the tv works. except it does not show the full picture. I would like to rule out that it is something else that is wrong other than the main board. I have tested the PS-0n with the new board and I get 4.4v on the old bad board I don't get anything. is there a way that I can force the old main board to turn on the power supply so I can see if the main board will fill the entire screen.

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