Sanyo DP46819 Picture Issues

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  • zacheriaj
    Senior Member
    • Jan 2014
    • 138
    • United States
    #1

    Sanyo DP46819 Picture Issues

    Picture is solarized as shown in photo. I have cleaned t-con connections, re-flowed the ground pins on the t-con connector, and the issue persists. Any ideas? SMPS tests perfectly. Also cleaned the t-con connector on the main board. TV has sound and video, all other functions are fine. Customer stated that the picture was dim so he used a can of air duster on the set and now this picture problem started.
    Attached Files
    You Can't Succeed Until You're Willing to Fail
    Tags: None
    • dskall
      Badcaps Legend
      • Oct 2016
      • 2905
      • usa
      #2
      Re: Sanyo DP46819 Picture Issues

      Need picture of t-con
      I assume no responsibility for any stupid suggestions I might post.

        Comment

        • zacheriaj
          Senior Member
          • Jan 2014
          • 138
          • United States
          #3
          Re: Sanyo DP46819 Picture Issues

          Originally posted by dskall
          Need picture of t-con
          This is the SJ photo for the t-con. It is the exact one, I don't have the tv with me right now.
          Attached Files
          You Can't Succeed Until You're Willing to Fail

            Comment

            • dskall
              Badcaps Legend
              • Oct 2016
              • 2905
              • usa
              #4
              Re: Sanyo DP46819 Picture Issues

              Looks like gamma problem. To confirm you would need to test VG1-VG21 on t-con in order And post results
              I assume no responsibility for any stupid suggestions I might post.

                Comment

                • zacheriaj
                  Senior Member
                  • Jan 2014
                  • 138
                  • United States
                  #5
                  Re: Sanyo DP46819 Picture Issues

                  Originally posted by dskall
                  Looks like gamma problem. To confirm you would need to test VG1-VG21 on t-con in order And post results
                  Thank you. What exactly am I testing for, how, and what would cause a gamma issue?
                  You Can't Succeed Until You're Willing to Fail

                    Comment

                    • dskall
                      Badcaps Legend
                      • Oct 2016
                      • 2905
                      • usa
                      #6
                      Re: Sanyo DP46819 Picture Issues

                      Your t-con is bad. You can replace it depending on price and availability. Or possibly replace gamma chip if no boards. Did shopjimmy have t-con?
                      I assume no responsibility for any stupid suggestions I might post.

                        Comment

                        • zacheriaj
                          Senior Member
                          • Jan 2014
                          • 138
                          • United States
                          #7
                          Re: Sanyo DP46819 Picture Issues

                          Originally posted by dskall
                          Your t-con is bad. You can replace it depending on price and availability. Or possibly replace gamma chip if no boards. Did shopjimmy have t-con?
                          That is what I assumed. They have it listed but none in stock. Do you know which one is the gamma chip and if it's worth the gamble that it's an isolated issue?
                          You Can't Succeed Until You're Willing to Fail

                            Comment

                            • dskall
                              Badcaps Legend
                              • Oct 2016
                              • 2905
                              • usa
                              #8
                              Re: Sanyo DP46819 Picture Issues

                              Looks like ebay has them
                              I assume no responsibility for any stupid suggestions I might post.

                                Comment

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