Sanyo plasma switching off!

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  • nstlfrk
    Senior Member
    • Apr 2014
    • 166
    • United States
    #1

    Sanyo plasma switching off!

    Hello all I have a Sanyo Plasma that when you turn it on it starts to light up but then shuts off. I cant find any blown fuses or shorted parts and all the caps appear to be good. It just clicks when it turn on then of course clicks when it shuts down. Sometimes it will do this multiple times and other just once or twice. Can any of you give me an idea of just what it may be or where to start?
    Thanks

    Sanyo DP50749
    Here are some pics











    Attached Files
    Last edited by nstlfrk; 09-19-2014, 07:19 AM.
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Sanyo plasma switching off!

      When you say "light up", do you mean the screen glows briefly? (if only dimly)
      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

        • nstlfrk
          Senior Member
          • Apr 2014
          • 166
          • United States
          #3
          Re: Sanyo plasma switching off!

          Originally posted by tom66
          When you say "light up", do you mean the screen glows briefly? (if only dimly)
          exactly what I mean. Does not show any information as input or video just a light glow.

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Sanyo plasma switching off!

              OK, look at these two boards
              https://www.badcaps.net/forum/attach...6&d=1411130864
              https://www.badcaps.net/forum/attach...7&d=1411130864

              Is an LED glowing on them? If so does it stay lit? Do both glow?
              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

                • nstlfrk
                  Senior Member
                  • Apr 2014
                  • 166
                  • United States
                  #5
                  Re: Sanyo plasma switching off!

                  Originally posted by tom66
                  OK, look at these two boards
                  https://www.badcaps.net/forum/attach...6&d=1411130864
                  https://www.badcaps.net/forum/attach...7&d=1411130864

                  Is an LED glowing on them? If so does it stay lit? Do both glow?
                  There is a green led on the one on the left for sure. It just stays lit solid.
                  I will have to check on the right one.

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK
                      #6
                      Re: Sanyo plasma switching off!

                      On some Panasonic panel modules, there is no LED on the SS board (right hand board)

                      Your TV has Sanyo main A/V board and software, but the display panel and driver electronics are manufactured by Panasonic (a good supplier.)
                      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

                        • Glitcher
                          Badcaps Veteran
                          • Mar 2013
                          • 673
                          • USa
                          #7
                          Re: Sanyo plasma switching off!

                          This is a very common problem with this model. It is a defective main board. There are repair kits on eBay for the main board but at times it's a hit and miss with it. Just wish someone would help figure out what was in those kits.

                            Comment

                            • nstlfrk
                              Senior Member
                              • Apr 2014
                              • 166
                              • United States
                              #8
                              Re: Sanyo plasma switching off!

                              Originally posted by tom66
                              On some Panasonic panel modules, there is no LED on the SS board (right hand board)

                              Your TV has Sanyo main A/V board and software, but the display panel and driver electronics are manufactured by Panasonic (a good supplier.)
                              Do you still need me to check on the other board for the led?
                              Also why does it matter if the LED is solid, on or off?

                                Comment

                                • nstlfrk
                                  Senior Member
                                  • Apr 2014
                                  • 166
                                  • United States
                                  #9
                                  Re: Sanyo plasma switching off!

                                  Originally posted by Glitcher
                                  This is a very common problem with this model. It is a defective main board. There are repair kits on eBay for the main board but at times it's a hit and miss with it. Just wish someone would help figure out what was in those kits.
                                  The main board as in the one with all the inputs on it?

                                    Comment

                                    • nstlfrk
                                      Senior Member
                                      • Apr 2014
                                      • 166
                                      • United States
                                      #10
                                      Re: Sanyo plasma switching off!

                                      Originally posted by tom66
                                      OK, look at these two boards
                                      https://www.badcaps.net/forum/attach...6&d=1411130864
                                      https://www.badcaps.net/forum/attach...7&d=1411130864

                                      Is an LED glowing on them? If so does it stay lit? Do both glow?

                                      There is no led on the right board only the left and it stays on solid.
                                      What do you think this means?

                                        Comment

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