Vizio SV471XVT Sound/HDMI problem

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • MisterD
    Badcaps Veteran
    • Oct 2012
    • 668
    • United States
    #1

    Vizio SV471XVT Sound/HDMI problem

    Had lots of lightning in the area, lost both HDMI one and three, HDMI two and four still working, tv now loses sound when doing a channel recall especially when going from a high number to a low number channel or visa versa, I have to either cycle the tv off and back on or the cable box off and back on to get audio back again
    At first I thought it was the HD Cable box having a problem after the lightning so I reset it by unplugging it for 10 mins, that didn't help so I tried a different tv hooked to same cable, it works fine with no loss of sound, I already replaced the main board in this tv and don't really want to have to replace it again.
    Any suggestions/help is appreciated. Thanks.
    Tags: None
    • MisterD
      Badcaps Veteran
      • Oct 2012
      • 668
      • United States
      #2
      Re: Vizio SV471XVT Sound/HDMI problem

      Anyone? Budm or Tom66 ?
      Last edited by MisterD; 11-03-2015, 12:56 PM.

        Comment

        • ReeceyBurger123
          Never Give Up !
          • May 2014
          • 7325
          • Britain
          #3
          Re: Vizio SV471XVT Sound/HDMI problem

          Sounds like Mainboard again unfortunately, take the back off and take some pictures of it an upload them.
          Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

          https://www.facebook.com/Telford-Tel...7894576335359/

            Comment

            • ecking767
              Badcaps Veteran
              • Oct 2009
              • 492
              • USA
              #4
              Re: Vizio SV471XVT Sound/HDMI problem

              after power outage,sometime the menu setting could get corrupt. I will reset the TV back to factory.Not sure on how to reset by to factory on this model Vizio, but check the menu

                Comment

                • freakaftr8
                  Badcaps Legend
                  • Oct 2012
                  • 3743
                  • USA
                  #5
                  Re: Vizio SV471XVT Sound/HDMI problem

                  Probably eeprom or hdmi codec processor
                  Did I leave the soldering iron on?

                    Comment

                    • MisterD
                      Badcaps Veteran
                      • Oct 2012
                      • 668
                      • United States
                      #6
                      Re: Vizio SV471XVT Sound/HDMI problem

                      I reset TV back to Factory Settings. that did Not help. I have been using the TV as it is and dealing with powering off and back on to get sound back, but today for some reason another HDMI Port failed while I had the TV on, so now I'm down to only 1 HDMI Port and who knows it may fail soon. so time to find another main board soon, I don't think it's possible to get parts for the HDMI circuits. May have to hunt for a new main board. hard to find and expensive.

                        Comment

                        • MisterD
                          Badcaps Veteran
                          • Oct 2012
                          • 668
                          • United States
                          #7
                          Re: Vizio SV471XVT Sound/HDMI problem

                          I did find another main board, I replaced it yesterday, all functions work again. I hope I get it unplugged from AC power quick enough in future lightning/storms.
                          Now I have 2 bad main boards on hand 3642-0722-0150, one has no remote control functions but works good otherwise, the other has only one working HDMI Port but still useable.

                            Comment

                            • Nick's Tvs
                              Badcaps Veteran
                              • Jan 2014
                              • 621
                              • USA
                              #8
                              Re: Vizio SV471XVT Sound/HDMI problem

                              Keep those on hand they may be useful in the future especially the one with IR issue.

                                Comment

                                Previous template Next

                                Related Topics

                                Collapse
                                • hugocarmo
                                  Panasonic TX-24A1UN CRT Sound and Input problem.
                                  by hugocarmo
                                  Hi.

                                  IΒ΄ve been given an old CRT from Panasonic, itΒ΄s almost new, it was storaged and almost not used since bought.
                                  It is imaculate inside, almost no dust or debris inside.
                                  The picture is good, but I have no left sound channel, I tried all the inputs, outputs, even on headphone jack. In AV2 I hear sound from right channel but no image, on tv tuner only right sound channel, the same for AV1.
                                  So I started to look for a service manual, I found one, and started from the beginning.
                                  Most of the times the caps are the problem so I orderer all the caps for all boards,...
                                  04-26-2025, 07:45 PM
                                • Tynan Dill
                                  Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
                                  by Tynan Dill
                                  I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

                                  Upon bringing it home and plugging it up, it showed a standby light.

                                  I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

                                  The screen seems to blackout and stay black, but with a flashlight I can see the display.

                                  With my Playstation 4 connected via HDMI, and running a game I can hear sound.

                                  Assuming...
                                  ORIGINAL POWER SUPPLY BOARD
                                  7 Photos
                                  11-22-2024, 01:46 PM
                                • computeka
                                  Macbook Air A2337 820-02016-07 No sound problem
                                  by computeka
                                  How about everyone, I have a MacBook Air which did not turn on, it had a lot of corrosion on the card where the sound plug and the fingerprint go, I have replaced it and the device now turns on but has no sound, if I connect a headphone through the plug, yes There is sound but the external speakers do not sound....
                                  1 Photo
                                  05-08-2024, 10:26 AM
                                • CraigR
                                  lg 46LD550 HDMI no sound
                                  by CraigR
                                  I got in a LG with no signal on HDMI ports so I replaced the HDMI IC and now I have picture but no sound on just the HDMI the other inputs are working fine for sound. Any ideas? Would the amplifier ic have anything to do with just HDMI?...
                                  10-05-2022, 01:13 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
                                • Loading...
                                • No more items.
                                Working...