Dynex DX-LCD32-09 had Negative Picture

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • hoadle
    Senior Member
    • Jul 2010
    • 174
    #1

    Dynex DX-LCD32-09 had Negative Picture

    Model: DX-LCD32-09
    TV Description: 720p LCD
    Problem: TV shows negative (Inverse) picture

    My TV is showing what looks like a negative. The whole screen seems whitish but when I ran a picture of the TV through a negative filter it looks normal. The power supply is outputing all of the proper voltages.

    My question is could this be the main board or is this an indication of a broken panel?

    What is the Solution?

    I find some website they had same problem & they already replaced the T-Con board on this TV but that didn't do anything, That all I can find maybe they sold the TV
    Attached Files
    Last edited by hoadle; 10-01-2011, 03:46 PM.
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Dynex DX-LCD32-09 had Negative Picture

      That's an odd problem, I'm almost tempted to say it's a software/settings problem. Some cameras for example let you select a "negative" filter, maybe for some reason this TV has that option. Try a factory reset from the menu.
      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

        • hoadle
          Senior Member
          • Jul 2010
          • 174
          #3
          Re: Dynex DX-LCD32-09 had Negative Picture

          Dear Tom66
          I already try a factory reset from the menu is still same thing but I will go to Dynex website to downloard update & try
          Thanks

            Comment

            • hoadle
              Senior Member
              • Jul 2010
              • 174
              #4
              Re: Dynex DX-LCD32-09 had Negative Picture

              Service Manual

                Comment

                • hoadle
                  Senior Member
                  • Jul 2010
                  • 174
                  #5
                  Re: Dynex DX-LCD32-09 had Negative Picture

                  Find the fproblem on my Dynex DX-LCD32-09 TV shows negative (Inverse) picture
                  is LCD panel is bad I just bought another Dynex DX-LCD32-09 TV not turn on at craigslist swap 2 screen the negative (Inverse) picture is gone TV look like nomal
                  Attached Files
                  Last edited by hoadle; 10-02-2011, 11:16 AM.

                    Comment

                    • tw2005
                      Badcaps Legend
                      • Oct 2011
                      • 6458
                      • Australia
                      #6
                      Re: Dynex DX-LCD32-09 had Negative Picture

                      Originally posted by hoadle
                      Find the fproblem on my Dynex DX-LCD32-09 TV shows negative (Inverse) picture
                      is LCD panel is bad I just bought another Dynex DX-LCD32-09 TV not turn on at craigslist swap 2 screen the negative (Inverse) picture is gone TV look like nomal
                      I'm interested in what your problem was as I have a similar problem. Just to understand better what you have said in your posts could you explain two things to me.

                      1. Did you actually try swapping the TCON board first to see if the board was faulty or not? I have a 37 inch AU Optronics panel and I am assuming the TCON is replacable like mine.

                      2. You swapped the entire LCD panel (including the TCON attached) from the donor TV and the problem was fixed so you believe it was a bad panel?

                      I'm hopeful it's the TCON on mine but reading your post is putting some doubt in my mind.

                      Also my set is a SANYO but I know both mine and yours are actually manufactured by XECECO.

                        Comment

                        • kc8adu
                          Super Moderator
                          • Nov 2003
                          • 8832
                          • U.S.A!
                          #7
                          Re: Dynex DX-LCD32-09 had Negative Picture

                          going to bet on tcon.

                            Comment

                            Previous template Next

                            Related Topics

                            Collapse
                            • Tr0ll
                              T-con suspect issue. Both ribbon cables no picture. One ribbon cable ok. (58pus8545)
                              by Tr0ll
                              Hi guys! I realized you have a lot of knowledge here so i am hoping you could point me in right direction with my odd issue.

                              The Tv is a Philips 58PUS8545/12, it had no picture but working backlights.

                              Original T-con:
                              Opened the Tv and tested to unplug one ribbon cable at a time. With this test i could see that i got fine picture on both halves as long as there was only one ribbon cable connected, with two connected picture were gone.

                              First replacement T-con:

                              I thought it might be t-con and ordered new t-con from china(supposedly tested)...
                              10-07-2023, 07:48 PM
                            • JJAAMM
                              SAMSUNG UN55KS9000F picture fades then distorts into vertical lines after 20 seconds
                              by JJAAMM
                              This was my main TV for the last 6 years. I'm not inclined to throw out a $2600 TV so quickly so I'm trying to investigate the issue.

                              Problem
                              TV was disconnected from power for 6 months during construction. When I plugged it yesterday picture was fine, after 30 seconds it dimmed then started developing horizontal lines, picture then starts to ghost vertically until it degrades into vertical streaks. TV always displays a perfect picture when cold. I can unplug TV for 5 minutes and plug it back in and picture is restored for 20 seconds. I can also keep it in standby mode...
                              07-06-2023, 06:01 AM
                            • TR103
                              Samsung TV model UE50TU: rebooting, backlight, sound, but no picture
                              by TR103
                              Hi, I have a Samsung UE50TU with:
                              - sound and backlight, but no picture
                              - when it arrived, it had a picture for a few seconds
                              - it keeps rebooting
                              - without ribbon cable between the two panel boards, it does not reboot but I have no picture
                              - without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
                              - when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.

                              - without cable between mainboard and lcd panel and with a jumpered...
                              01-22-2025, 04:12 PM
                            • MikeRWK
                              Sharp LC-32D40U Negative picture unless the contrast is almost 0
                              by MikeRWK
                              This only affects the picture but not the tv menus. Selecting any of the default picture settings gives a negative picture but turning the contrast down to 5 'fixes' it but then the tv is too dim which is hard to tell in the pictures.

                              This tv has a main board, scaler board, and a tcon.

                              I tore it down so I could probe the tcon which is nicely labelled. I've also included a pic of it.Here are the voltages I got:

                              VGH 32V
                              VGL -6V
                              GAM1 14.6V
                              GAM18 185mV
                              VLS 14.67V
                              3V 3.01V
                              RESET 2.95V
                              TCLK 0V
                              SCC_VDD...
                              01-30-2021, 05:21 PM
                            • Mgiffune
                              Samsung UN60EH6000F Black Screen, Backlight and Sound Good. Power Cycle Returns Picture
                              by Mgiffune
                              I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started ‘fading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.

                              I ordered a supposedly ‘new' Tcon board this time, and                              ...
                              06-09-2024, 10:28 AM
                            • Loading...
                            • No more items.
                            Working...