samsung lns4692dx audio ok, no video

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #41
    Re: samsung lns4692dx audio ok, no video

    Read budm's comment and repeat the test on both ends of CP1.
    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

    • dejesus
      Senior Member
      • Jan 2013
      • 108
      • usa

      #42
      Re: samsung lns4692dx audio ok, no video

      Budm, sorry for the confusion. I am getting 5.3vdc on the t-con in one side and .7vdc in the other side with the tv on. The other reading was with the tv unplug.

      Comment

      • dejesus
        Senior Member
        • Jan 2013
        • 108
        • usa

        #43
        Re: samsung lns4692dx audio ok, no video

        Budm, Sorry for the confusion. I am getting 5.4 vdc in on side of the cp1 fuse and .7vdc in the other side of the fuse with the tv on, the other reading was with the tv unplug.

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #44
          Re: samsung lns4692dx audio ok, no video

          The fuse is failed, very common failure on this set from my understanding. So replace the fuse.
          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

          • dejesus
            Senior Member
            • Jan 2013
            • 108
            • usa

            #45
            Re: samsung lns4692dx audio ok, no video

            do you recomend to do a bridge? from c14 to vin?

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK

              #46
              Re: samsung lns4692dx audio ok, no video

              I recommend you replace it.
              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

              • budm
                Badcaps Legend
                • Feb 2010
                • 40746
                • USA

                #47
                Re: samsung lns4692dx audio ok, no video

                OK, now we are getting some where. Thanks Tom.
                Never stop learning
                Basic LCD TV and Monitor troubleshooting guides.
                http://www.badcaps.net/forum/showthr...956#post305956

                Voltage Regulator (LDO) testing:
                http://www.badcaps.net/forum/showthr...999#post300999

                Inverter testing using old CFL:
                http://www.badcaps.net/forum/showthr...er+testing+cfl

                Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                http://s807.photobucket.com/user/budm/library/

                TV Factory reset codes listing:
                http://www.badcaps.net/forum/showthread.php?t=24809

                Comment

                • dejesus
                  Senior Member
                  • Jan 2013
                  • 108
                  • usa

                  #48
                  Re: samsung lns4692dx audio ok, no video

                  Hey, Tom66 and Budm, You guys make everything look so simple that even a guy like me with no experience at all can work on a tv. I almost have a heart attack went i plug the tv and ALELUYA!!! there was a picture, It look great. What i did was to put a fuse n top of the old one, I could not belived went i saw it on. YOU GUYS ARE GREAT< THANKS YOU> Let me go now and tell everybody, and i will recomend this site to every one that is into fixing electronic. I be on craig list soon to get another tv and play, but i promess i will do my homework first. Really thank you.
                  Attached Files

                  Comment

                  • tom66
                    EVs Rule
                    • Apr 2011
                    • 32560
                    • UK

                    #49
                    Re: samsung lns4692dx audio ok, no video

                    Enjoy the TV. It's really surprising the amount of stuff that gets thrown out which is easy to fix.
                    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

                    • budm
                      Badcaps Legend
                      • Feb 2010
                      • 40746
                      • USA

                      #50
                      Re: samsung lns4692dx audio ok, no video

                      Thanks for the repair feedback, that is the way to install the new fuse, no need to remove the blown one.
                      Never stop learning
                      Basic LCD TV and Monitor troubleshooting guides.
                      http://www.badcaps.net/forum/showthr...956#post305956

                      Voltage Regulator (LDO) testing:
                      http://www.badcaps.net/forum/showthr...999#post300999

                      Inverter testing using old CFL:
                      http://www.badcaps.net/forum/showthr...er+testing+cfl

                      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                      http://s807.photobucket.com/user/budm/library/

                      TV Factory reset codes listing:
                      http://www.badcaps.net/forum/showthread.php?t=24809

                      Comment

                      • tom66
                        EVs Rule
                        • Apr 2011
                        • 32560
                        • UK

                        #51
                        Re: samsung lns4692dx audio ok, no video

                        I usually remove the fuse but it's much easier to bodge one on top for someone not used to SMD.
                        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

                        • budm
                          Badcaps Legend
                          • Feb 2010
                          • 40746
                          • USA

                          #52
                          Re: samsung lns4692dx audio ok, no video

                          By the way, now I remember this model with the blown fuse on the T-CON board from months ago.
                          http://s807.photobucket.com/albums/y...g%20LNS4692DX/
                          Never stop learning
                          Basic LCD TV and Monitor troubleshooting guides.
                          http://www.badcaps.net/forum/showthr...956#post305956

                          Voltage Regulator (LDO) testing:
                          http://www.badcaps.net/forum/showthr...999#post300999

                          Inverter testing using old CFL:
                          http://www.badcaps.net/forum/showthr...er+testing+cfl

                          Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                          http://s807.photobucket.com/user/budm/library/

                          TV Factory reset codes listing:
                          http://www.badcaps.net/forum/showthread.php?t=24809

                          Comment

                          • tom66
                            EVs Rule
                            • Apr 2011
                            • 32560
                            • UK

                            #53
                            Re: samsung lns4692dx audio ok, no video

                            Originally posted by budm
                            By the way, now I remember this model with the blown fuse on the T-CON board from months ago.
                            http://s807.photobucket.com/albums/y...g%20LNS4692DX/
                            That's why I mentioned it to be a common fault, I've seen two others on here with that fault plus yours.
                            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

                            Related Topics

                            Collapse

                            • samson7point1@yahoo.com
                              Help troubleshooting an audio problem with an RCA SGT-250 CED Player
                              by samson7point1@yahoo.com
                              The Problem: This player has a toggle switch to select between Stereo, Mono R, and Mono L. Regardless of the setting it outputs the sound to both the L&R audio jacks. In the Mono R position, the audio output level is normal (from both the L and R audio output jacks), in the Stereo position the audio output is about half the volume, and in Mono L, it's about 3/4 the volume. Something about putting it into Stereo mode is causing the volume to drop significantly and I can't figure it out.

                              The player processes the audio signal using two different reference frequencies. The "R"...
                              04-30-2024, 11:22 AM
                            • alro7779
                              Samsung UN55MU6103F video problem; has colored stripes on the display
                              by alro7779
                              Hello, everyone!

                              A co-worker gave me a 55-inch Samsung TV model UN55MU6103F so I can try to fix the following problem... As soon as I plug it in to the wall, the TV turns on, and the display shows a few stripes all over the screen. I took off the back cover and disconnected both ribbon cables that go to the display (one at a time) so by doing that I can narrow down the bad section of the problem, but in both cases the display turns black. I know there are some voltages that I have to check (VGH, VGL, etc.) but don't know what reading each has to show. If anyone could guide me on this,...
                              09-27-2025, 11:29 PM
                            • SolarFlare
                              Mi TV 4 Pro-Samsung Panel LSC550FN20 - Video problem, backlight and Audio works fine.
                              by SolarFlare
                              Hi,

                              My barely 3 year old TV has stopped displaying video, although the video output comes for a few seconds after turning ON which displays the manufacturers logo then shows the home screen (all this with some blue flicker) then the video goes blank and the screen is dark blue with the backlight on. The audio output works perfectly and the TV also takes in voice commands(smart TV).

                              The TCON board has the following Chips -
                              Samsung VTU63A0
                              RT6939 - 2nos.

                              and all these chips are getting real hot within a minute, I dont know if this is normal....
                              06-26-2022, 08:58 AM
                            • frannyjunk
                              Samsung UN32M4500 has audio but no video
                              by frannyjunk
                              Hi, I have a Samsung UN32M4500 that turns on, has audio but no video. No Samsung splash screen when turning on, but I can see the backlights (screen is just this dark gray color). The TV only has one board, which I replaced from one I purchased from directtvparts on eBay. But still the problem persists. Is my LCD bad?
                              06-05-2021, 08:34 PM
                            • Hakuu
                              LG OLED77G1PUA - No Video / Audio after a TCON Board change and Software Update
                              by Hakuu
                              Hi There,

                              This TV was auto switching off after few seconds with some vertical lines on the screen, so got a new TCON board and replaced it.

                              After replacing the TCON board it was working fine and i set it up with everything, used for few hours, then had the bright idea to update the software on it. During the update process, TV switched off and now no audio or video. No relay switch sound.

                              More Details

                              TV Model - LG OLED77G1PUA

                              Got the same exact TCON board from TVPartsToday and replaced it. But didnt transfer the EPPROM data (didnt...
                              07-12-2023, 02:37 PM
                            • Loading...
                            • No more items.
                            Working...