Vizio VX37LHDTV10A

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  • tibimakai
    Badcaps Legend
    • Jan 2012
    • 3680
    • USA

    #101
    Re: Vizio VX37LHDTV10A

    The picture will have to wait until morning.
    The problem is that it shuts down to fast to be able to take a couple of measurements.
    I will have to start it up a couple of times until I can measure all the regulators.
    What is weird that I'm measuring the outputs from the PS and I'm not getting anything while the led is white.

    Comment

    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271

      #102
      Re: Vizio VX37LHDTV10A

      Originally posted by tibimakai
      The problem is that it shuts down to fast to be able to take a couple of measurements.
      I will have to start it up a couple of times until I can measure all the regulators.
      Use min/max on your new Fluke 87V.
      Last edited by retiredcaps; 05-20-2012, 12:18 AM.
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      Comment

      • tibimakai
        Badcaps Legend
        • Jan 2012
        • 3680
        • USA

        #103
        Re: Vizio VX37LHDTV10A

        It's not that fast, I can still take like three measurements if I'm fast, but thank you for the suggestion. I knew that one day these extra features will come handy. By the way I have got a nice C550 bag as a promotion item from Fluke and I'm selling it, asking $55 for it, so if I can sell it for $50, my meter will be only $200.

        Comment

        • tibimakai
          Badcaps Legend
          • Jan 2012
          • 3680
          • USA

          #104
          Re: Vizio VX37LHDTV10A

          I'm not feeling good, so I couldn't do any measurements, I have just took a couple of shots with the phone.
          Attached Files

          Comment

          • tibimakai
            Badcaps Legend
            • Jan 2012
            • 3680
            • USA

            #105
            Re: Vizio VX37LHDTV10A

            I had a breakthrough with mine, though not sure what I did that "fixed" it to a point.
            I guess I have tried using budm's suggestion to use the min/max on my meter, but course I didn't know what I was doing because it was maxing out with OL, but after this the TV stayed on with white logo.
            My primaries were 1.6xxKOHM and the secondaries were 6.1KOHM except T1's which was 158KOHM.
            So I guess this is my problem.
            Now where can I find this transformer?

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA

              #106
              Re: Vizio VX37LHDTV10A

              Can you post the pictures of both Inverter boards? I want to see if they are the same as what I have at home. you are talking about the inverter transformer right?
              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

              • tibimakai
                Badcaps Legend
                • Jan 2012
                • 3680
                • USA

                #107
                Re: Vizio VX37LHDTV10A

                I have only one board on the left side.
                Now that I have put back the board in it's place, I'm getting even higher value.
                Attached Files

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK

                  #108
                  Re: Vizio VX37LHDTV10A

                  Ah, Darfon inverters - these fail like nothing else - and it's usually the transformers. Enter the part# into eBay to find replacements.
                  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

                  • tibimakai
                    Badcaps Legend
                    • Jan 2012
                    • 3680
                    • USA

                    #109
                    Re: Vizio VX37LHDTV10A

                    Now I remember that Bill said the same thing. By the way what's up with him?

                    Comment

                    • retiredcaps
                      Badcaps Legend
                      • Apr 2010
                      • 9271

                      #110
                      Re: Vizio VX37LHDTV10A

                      Originally posted by tibimakai
                      I have only one board on the left side.
                      Now that I have put back the board in it's place, I'm getting even higher value.
                      One retiredcaps bonus point for a picture of your new Fluke 87V!

                      $9.99 + free shipping. USA seller.

                      http://www.ebay.com/itm/120903712163

                      From the auction ...

                      "If you have a failed 4H.V1448.481 inverter board then there is a good chance one of these is bad. If you have an ohmmeter you can find out which one is the problem, simply measure the resistance between the two terminals at each bulb connector and they should all read very close to the same value, about 6k, one will have a higher or lower value indicating a failure. I can not guarantee that this transformer is the only problem, but on the boards I have seen it was always T2 or the second one from the top and replacing it fixed the board."
                      --- begin sig file ---

                      If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

                      We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

                      Please do not post inline and offsite as they slow down the loading of pages.

                      --- end sig file ---

                      Comment

                      • tibimakai
                        Badcaps Legend
                        • Jan 2012
                        • 3680
                        • USA

                        #111
                        Re: Vizio VX37LHDTV10A

                        Wow, thanks for that. I guess only the first number/letter combination matters(6010B), right?
                        The meter it's awesome. I'm trying to sell a C550 bag(which was free with purchase) for $50 to drop the price of the meter even more.
                        Next on my list will be a Weller WESD51 station

                        Comment

                        • budm
                          Badcaps Legend
                          • Feb 2010
                          • 40746
                          • USA

                          #112
                          Re: Vizio VX37LHDTV10A

                          The two VX37L I have uses two Inverter boards, the main board and my power supply (the connectors are the same as your) are not the same as you either.
                          Darfon is rally known for using bad transformers.
                          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

                          • tibimakai
                            Badcaps Legend
                            • Jan 2012
                            • 3680
                            • USA

                            #113
                            Re: Vizio VX37LHDTV10A

                            I have purchased that transformer that retiredcaps posted(thank you again) and I will see if it fixes this TV(finally). I'm fixing way to many Vizios, but they are easy money.

                            Comment

                            • budm
                              Badcaps Legend
                              • Feb 2010
                              • 40746
                              • USA

                              #114
                              Re: Vizio VX37LHDTV10A

                              How about the other two power supplies that you bought and they tested out bad when you use the lamps for testing?
                              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

                              • tibimakai
                                Badcaps Legend
                                • Jan 2012
                                • 3680
                                • USA

                                #115
                                Re: Vizio VX37LHDTV10A

                                I'm thinking about fixing them, but if I remember well I wasn't getting 12/24V from those. Most likely it's a primary side issue or again could be just some capacitors blown like in this one.
                                Do you want to help me fix those?

                                Comment

                                • tibimakai
                                  Badcaps Legend
                                  • Jan 2012
                                  • 3680
                                  • USA

                                  #116
                                  Re: Vizio VX37LHDTV10A

                                  Finally I fixed it!!
                                  I have replaced that T1 transformer and all it's OK.
                                  Thank you all for helping me, specially budm.
                                  Fixed 19 TVs since February(2 plasmas and 17 LCDs).
                                  Tomorrow I'm getting a Weller WESD51 soldering station, sweet.
                                  Investing back in to the "business"
                                  Next, a workbench. 72"x36" adjustable height shop top workbench.

                                  Comment

                                  • budm
                                    Badcaps Legend
                                    • Feb 2010
                                    • 40746
                                    • USA

                                    #117
                                    Re: Vizio VX37LHDTV10A

                                    Great news finally! So where did you get the transformer from?
                                    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

                                    • tibimakai
                                      Badcaps Legend
                                      • Jan 2012
                                      • 3680
                                      • USA

                                      #118
                                      Re: Vizio VX37LHDTV10A

                                      I have purchased the one retiredcaps posted above.

                                      Comment

                                      • budm
                                        Badcaps Legend
                                        • Feb 2010
                                        • 40746
                                        • USA

                                        #119
                                        Re: Vizio VX37LHDTV10A

                                        I hope it will last since it is used, not new transformer.
                                        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

                                        • tibimakai
                                          Badcaps Legend
                                          • Jan 2012
                                          • 3680
                                          • USA

                                          #120
                                          Re: Vizio VX37LHDTV10A

                                          The original ones are used too. The next owner will find that out.

                                          Comment

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