Vizio E371VA Power Problem?

Collapse
X
Collapse
+ More Options
Posts
 
  • Time
  • Show
Clear All
new posts
  • selldoor
    Slow Learner
    • Dec 2010
    • 7870

    #41
    Re: Vizio E371VA Power Problem?

    Whining and flashing from back lights - is it going to be a ccfl /wiring fault.
    I dont know how difficult it is to get at or what you can see without total disassembly
    but if it was a monitor that is what I would be looking at next.
    Please upload pictures using attachment function when ask for help on the repair
    http://www.badcaps.net/forum/showthread.php?t=39740

    Comment

    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA

      #42
      Re: Vizio E371VA Power Problem?

      That is what I am afraid of, and not sure how well he will be able to take apart the screen without damaging anything.
      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

      • Mark355
        Member
        • Apr 2012
        • 24
        • USA

        #43
        Re: Vizio E371VA Power Problem?

        Well, I'm willing to attempt anything, as it is a boat anchor the was it is right now! lol

        What would you check next?

        Thanks,

        Mark

        Comment

        • selldoor
          Slow Learner
          • Dec 2010
          • 7870

          #44
          Re: Vizio E371VA Power Problem?

          Have a last check that all connectors and plugs are firmly seated and if it still doesnt work the next step is to see if the back lights are broken, or the wiring defective. First try switching it on in a room as dark as you can get and see if there is any arcing around the inverter area when you switch it on. Next unplug and wait 5 mins then start to dismantle it down to the panel. Look carefully at the wiring as you go especially around the inverter. look for cracks
          splits scorching etc. I dont know what this set is like sometimes you can see some wiring sometimes it is all encased, but you need to keep going till you get to see where the ccfls are mounted. At that point take some more pics and post them.
          Please upload pictures using attachment function when ask for help on the repair
          http://www.badcaps.net/forum/showthread.php?t=39740

          Comment

          • Mark355
            Member
            • Apr 2012
            • 24
            • USA

            #45
            Re: Vizio E371VA Power Problem?

            Thanks selldoor, I try those suggestions Wednesday night.

            Thanks again,

            Mark

            Comment

            • Mark355
              Member
              • Apr 2012
              • 24
              • USA

              #46
              Re: Vizio E371VA Power Problem?

              I was able to spend a few minutes with the non co-operative TV. I couldn't see any obvious arcing, but I haven't taken anything apart yet. I was able to locate where the high pitched whine is coming from before the unit goes into it's blinking back-light mode. The attached shows an arrow and a circle where I think the sound was coming from. This may mean something, maybe not....thought it was worth a shot.
              Attached Files

              Comment

              • budm
                Badcaps Legend
                • Feb 2010
                • 40746
                • USA

                #47
                Re: Vizio E371VA Power Problem?

                That is the Class D power amplifiers for the speakers. May be the sound is coming from under the board or inside the panel?
                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

                • Mark355
                  Member
                  • Apr 2012
                  • 24
                  • USA

                  #48
                  Re: Vizio E371VA Power Problem?

                  Well I unplugged and reseated all of the connectors with the exception of the two small ribbon cables in the center top......those looked a bit fragile. Does the same thing, and I'm thinking the sound is coming from the main board in the area I circled. Go figure. Could anything in that area cause the symptoms of this fine Vizio? There are several caps in that area.

                  Thanks,

                  Mark

                  Comment

                  • Mark355
                    Member
                    • Apr 2012
                    • 24
                    • USA

                    #49
                    Re: Vizio E371VA Power Problem?

                    OK Folks,
                    I was going to disassemble the set today and I got all of the boards off but the center high board that has the small ribbon cables going go into the housing toward the screen. Just for my sake what is the function of that board, and how do you disconnect those ribbon cables from it?

                    Thanks for putting up with this beginner,


                    Mark

                    Comment

                    • budm
                      Badcaps Legend
                      • Feb 2010
                      • 40746
                      • USA

                      #50
                      Re: Vizio E371VA Power Problem?

                      That is the T-CON board, I do not think that board is the cause of the problem for making squealing sound.
                      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

                      • taylordj
                        New Member
                        • Mar 2013
                        • 2
                        • US

                        #51
                        Re: Vizio E371VA Power Problem?

                        Mark, not sure if you are still around but I have the exact same problem with my Visio 37VA and the power supply checks out fine. Where you able to figure out anything else on your issue? My tv went out in 13 months and Vizio will not help me trouble shoot the problem. No caps are split or swollen and all voltage checks out based on earlier posts on this forum. I appreciate anyone that can offer advice on this.

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK

                          #52
                          Re: Vizio E371VA Power Problem?

                          I would imagine even at 13 months you'd have a reasonable claim to lifespan issues. It shouldn't be your responsibility to fix 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

                          • taylordj
                            New Member
                            • Mar 2013
                            • 2
                            • US

                            #53
                            Re: Vizio E371VA Power Problem?

                            Changed the main board today and the tv is still behaving the same way. The backlight is lit and Mark changed inverter and it didn't help so u went with main board. Any suggestions? Thanks

                            Comment

                            Related Topics

                            Collapse

                            • Super360
                              Vizio E701i-A3 Vizio logo flashing then turns off
                              by Super360
                              Ok so here's the story. I was watching tv one day when all of a sudden I heard a pop from the back of the tv set and rushed to unplug the set. By this time the tv already had smoke coming out the back. It was not storming or inclement weather that day to cause a power surge to the best of my abilities. When I opened the tv up, I found that the three capacitors on the psu (highlighted in red) were all bulging and looked they had exploded. I replaced all of them right away and when I went to start up the tv after the "fix" it started just showing the flashing vizio logo as soon as power...
                              07-25-2024, 07:06 PM
                            • rajbot
                              No Power problem with Vizio E60-E3
                              by rajbot
                              Hi all:

                              I have a Vizio E60-E3 I am trying to troubleshoot a no power problem with. Thanks to the help on this board and elsewhere, I was pretty sure I had narrowed it to a power board problem. The board in question is a 09-60CAP0D0-00. Image attached for reference, but not of my board (tv is put away at the moment). FWIW, no obvious looking issues with the board.

                              I measured voltage at power in and on the fuse and saw 120V, so power is getting to the board.

                              On the pins out to the main board, I got no voltage at all on any of the pins. I assumed this...
                              03-22-2023, 08:09 AM
                            • x_orange90_x
                              Vizio V555-G1 stuck on wallpaper; now stuck on V logo
                              by x_orange90_x
                              I just got this tv today and it's getting stuck on the wallpaper. When I first power it on it goes to the V logo, then a black screen for about 15 seconds, then a Chromecast error for just a few seconds, and then finally to a wallpaper. It stays frozen on this wallpaper and does not respond to anything on the remote besides power on/off. Likewise the buttons on the tv do nothing either (besides power). I did the "reset" by holding the volume down and input buttons together for 10 seconds. It showed a message at the top of the screen saying it was Wiping Data and would restart soon. After...
                              12-28-2023, 06:26 AM
                            • theone111
                              Problem with LG Plasma 60PM6700 - Random power downs
                              by theone111
                              I have an LG Plasma TV 60PM6700 for the past ~12 years.

                              In the last ~3-4 months I have been having some issues.
                              1. Problem: It started with random picture disappearing (sound still worked).
                                Frequency: Happened about once a week.
                                Solution: Had to turn off TV wait a few seconds before turning it on again.
                              2. Problem: Then it got worse and the TV started to shut down and when turning on the no picture just sound.
                                Frequency: Happened about once a week.
                                Solution: Had to turn off TV wait about 10-20 seconds and turn it on again to solve.
                              3. Problem: TV shuts down
                              ...
                              07-22-2024, 10:36 AM
                            • MICHAEL_2013
                              Change Logo Aptio Setup Utility 2021 (ROM Layout mismatch detected) Problem
                              by MICHAEL_2013
                              Good afternoon, Lords of great wisdom. My problem is the following: I bought a Chinese laptop with GN117_MB_V31-T board. (Aptio Setup Utility 2021) (There is no info for that board). And I want to change the logo of the bios. I have used Aptio_V Afuwin to do the bios Backup, then I change the logo with AMI ChangeLogo Tool v5.0.0.2 and everything seems perfect. But when you restart the new logo appears ok. But it automatically enters the bios, appearing a new option RECOVERY, ROM LAYOUT MISMATCH DETECTED - PARTIAL UPDATE IS NOT ALLOWED. If I give ESC it enters windows without problem but always...
                              06-28-2021, 03:12 PM
                            • Loading...
                            • No more items.
                            Working...