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    #1

    Samsung Plasma troubleshooting

    Hello,

    I have a 42 inch Plasma with samsung guts that was built around 2004

    I tested the voltages from the power board and the Vs, Ve and Vset voltages are wrong so i know that board is dead. Also, I read that the y sustain and the y buffers often go bad on these sets... my buffers look nothing like on

    http://blog.coppelltvrepair.com/2010...er-boards.html

    So I have no clue how to test them.

    At the moment I can power on the tv and the power led turns blue (from red while in sleep) and I can have sound on the tv but no picture at all (completely black).

    So i was thinking about switchin boards until the TV works, but im scared to blow up my replacement parts.

    If the Y buffers and/or the Y sustain board is defective and I replace the power board, can they blow up my replacement board?



    Also if anyone has a SM for a Prima ps-42d8c (my tv) or one of those similar TV bellow, i would appreciate it if you could send it to me.

    Maxent MX-42VM10 or AKAI PDP4294 and PDP42298ED, ESA PDP4294LV, ILO P42BSMT, MAXENT P4202YD04, Phillips 42FD9935/17, SAMSUNG SPN4235, SANYO DP42746

    Thank you!!!
    Tags: None
    #2
    Re: Samsung Plasma troubleshooting

    Forgot to mention that the bad voltages comming out of my power board are all bellow what they should be. Can I then asume that nothing else was damaged by the power supply failling?
    Last edited by thecrazy; 10-26-2011, 01:10 AM.

    Comment

      #3
      Re: Samsung Plasma troubleshooting

      Yes, bad X and or Y boards in plasma TVs can take out other boards. You should post what the voltage readings actually, not just that they are wrong or low. Inaccurate voltage readings are not much help in troubleshooting.

      Comment

        #4
        Re: Samsung Plasma troubleshooting

        Originally posted by thecrazy View Post
        Forgot to mention that the bad voltages comming out of my power board are all bellow what they should be. Can I then asume that nothing else was damaged by the power supply failling?
        Can you post a pic of your power board? The voltages can often be adjusted back to where they should be - on many TVs they drift out of tolerance and go bad.
        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

          #5
          Re: Samsung Plasma troubleshooting

          A good source of service manuals / schematics is Elektrotanya. I'm not sure I'd put much time / money into a 7 year old plasma TV. Wine improves with age, plasma TVs don't.

          PlainBill
          For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

          Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

          Comment

            #6
            Re: Samsung Plasma troubleshooting

            Originally posted by PlainBill View Post
            A good source of service manuals / schematics is Elektrotanya. I'm not sure I'd put much time / money into a 7 year old plasma TV. Wine improves with age, plasma TVs don't.

            PlainBill
            Just an 852x480 panel, too. Not HD. http://www.epinions.com/reviews/pr-P...nel_Television

            I would personally sell it on Craiglist to someone who is okay with spending a bit on an older TV.
            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

              #7
              Re: Samsung Plasma troubleshooting

              ouch, i thought this tv was 720p...

              so lets put a stop on this, Ill just scrap the tv

              thank you all for your help

              Comment

                #8
                Re: Samsung Plasma troubleshooting

                Originally posted by thecrazy View Post
                Hello,

                I have a 42 inch Plasma with samsung guts that was built around 2004

                I tested the voltages from the power board and the Vs, Ve and Vset voltages are wrong so i know that board is dead. Also, I read that the y sustain and the y buffers often go bad on these sets... my buffers look nothing like on

                http://blog.coppelltvrepair.com/2010...er-boards.html

                So I have no clue how to test them.

                At the moment I can power on the tv and the power led turns blue (from red while in sleep) and I can have sound on the tv but no picture at all (completely black).

                So i was thinking about switchin boards until the TV works, but im scared to blow up my replacement parts.

                If the Y buffers and/or the Y sustain board is defective and I replace the power board, can they blow up my replacement board?



                Also if anyone has a SM for a Prima ps-42d8c (my tv) or one of those similar TV bellow, i would appreciate it if you could send it to me.

                Maxent MX-42VM10 or AKAI PDP4294 and PDP42298ED, ESA PDP4294LV, ILO P42BSMT, MAXENT P4202YD04, Phillips 42FD9935/17, SAMSUNG SPN4235, SANYO DP42746

                Thank you!!!
                I have a Samsung PN42A450 plasma and trying fix it, I have no picture but have sound, I have changed the Y-Systain and the X-Systan still no picture can you help????

                Comment

                  #9
                  Re: Samsung Plasma troubleshooting

                  Try starting a new post. No sense in digging up a year and a half old thread.

                  Comment

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