42" Vizio No Picture has Backlight

Collapse
X
Collapse
 
  • Page of 2
  • Time
  • Show
Clear All
new posts
Previous 1 2 template Next
  • MisterD
    Badcaps Veteran
    • Oct 2012
    • 668
    • United States
    #21
    Re: 42" Vizio No Picture has Backlight

    Got the new/used T-Con board today, got it installed and everything works good...on High Definition Cable TV using HDMI input. I'm So happy to get it going.

    Now another project.... I just got a 47" Philips LCD from a guy for free, he said it went out in a thunder storm and that he himself replaced the power supply board but still a dead tv, I will start a new thread on it once I get into it, haven't even taken the back off yet.

    I want to thank Budm and everyone else that helped me on this one.

    Thanks so much!!!!

    Fixed 1 Plasma and 2 LCD TV's so far.

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA
        #22
        Re: 42" Vizio No Picture has Backlight

        Whew! I am glad you got it fixed, $55 for 42" 3D TV, not bad. I hope the EEPROM does not go out next!
        By the way, can I get good picture shot of the T-CON board, and do you mind if I post your pictures on my Photobucket so it may help other people also?
        Last edited by budm; 11-13-2012, 11:42 PM.
        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

          • MisterD
            Badcaps Veteran
            • Oct 2012
            • 668
            • United States
            #23
            Re: 42" Vizio No Picture has Backlight

            I actually bought this tv not working for $150 paid $55 for T-CON = $205 total investment.still a great deal. Attached is a picture of the T-CON Board, I guess I could have removed the metal shielding to try and troubleshoot but It may have been a bad processor IC that I wouldn't have been able to replace anyway, hard to tell what failed on this board. one guy posted he did a re-flow with a heat gun on a few TV's he fixed. I think I will hang on to the old board anyway. Bud yes please post in your photo bucket to help others. Thanks!
            Attached Files

              Comment

              • budm
                Badcaps Legend
                • Feb 2010
                • 40746
                • USA
                #24
                Re: 42" Vizio No Picture has Backlight

                OK, will do, thanks.
                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

                  • infringer
                    Badcaps Member
                    • Sep 2009
                    • 244
                    • United Frickin States
                    #25
                    Re: 42" Vizio No Picture has Backlight

                    yes that was an expensive bugger to fix for me I think it required new psu and a tcon board for me to fix that one... Good luck.
                    Please note: I am not responsible for any harm caused to you anything discussed is just discussion. Before you try anything discussed be sure that you have the appropriate knowledge and safety gear for the job. Like with anything education and safety are first! Do not try anything @ home without it.

                      Comment

                      • neverexisted
                        Senior Member
                        • Nov 2012
                        • 76
                        • United States
                        #26
                        Re: 42" Vizio No Picture has Backlight

                        Did you ever get the T-Con? Was that the issue.


                        Have the same issue and getting the light sequence. Checked a few caps on mainboard and all are good. Not sure where to go from here customer had already replaced the video board with no results.

                          Comment

                          Previous 1 2 template Next

                          Related Topics

                          Collapse
                          • Fly_Among_Stars
                            VIZIO E70-E3 Half picture with half TCON
                            by Fly_Among_Stars
                            Hi,
                            I have a VIZIO E70-E3.
                            Symptoms: Black screen, no picture, but LED backlights are working.
                            I probed the power board and voltages are as listed on the board.
                            Main board appears fine, too.
                            I believe the problem is either a bad T-CON board, or connection to LCD, or bad LCD.
                            There are two separate ribbon cables feeding the LCD.
                            If both are connected, the screen is black.

                            If only the ribbon cable that feeds the right side of the screen (when viewed from the front) is disconnected, the left side of the screen shows picture and...
                            04-24-2023, 08:20 PM
                          • Document Archive
                            Surface Mount Fuses Fundamentals Datasheet
                            by Document Archive
                            TE Circuit Protection offers the widest selection of surface-mount fuses available for addressing a broad range of overcurrent protection applications. Helping to prevent costly damage and promote a safe environment for electronic and electrical equipment, our single-use chip fuses provide performance stability to support applications with current ratings from .5A up to 20A.

                            TE Circuit Protection also offers the telecom FT600 fuse for telecommunications applications. This telecom fuse helps comply with North American overcurrent protection requirements, including Telcordia, GR-1089,...
                            10-07-2024, 06:07 AM
                          • ggil44
                            Vizio M65-E0 No Picture, No Sound
                            by ggil44
                            Hi I inherited a Vizio M65-E0 that isn't working. It must have been dropped on the corner because I found that the infrared circuit had a capacitor with one end broken off of the board and some green corrosion around the plug to the main board. I re-soldered the capacitor and cleaned the corrosion well and tried turning the M65-E0 on and I was successful. My problem is that while the back lights come on and appear to perform local dimming there is no picture or sound. It kind of looks like you are looking at the TV through a very dense fog, where changing the input on the remote will change bright...
                            09-03-2024, 08:30 PM
                          • jason123
                            Vizio P602UI-B3 No Picture or Sound - No TCON Voltage
                            by jason123
                            Hello,
                            Help is much appreciated as I don't have any experience with this model TV.

                            Picked it up and it was smoking in the back when powered.
                            Open opening the LED Driver board was charred (see last photo.)

                            I noticed some blown caps on the Power board as well.

                            Replaced the LED driver board, and bad caps on Power supply.

                            Voltages on CN301 (upper power supply connector to LED driver board)
                            X000017 - All 24.39V
                            GND - 0.001
                            OD - 0.015
                            VSNS - 0.009 (does that imply bad backlight or bad LED Driver?)

                            ...
                            11-14-2020, 08:43 AM
                          • maricm
                            Vizio m65-c1 picture flashing on and off on the screen
                            by maricm
                            HI all,
                            hope someone point to the possible issue before I start buying replacement parts.
                            Tv starts normal and responds to remote fine, PSU voltages mesured fine 19v was 18.9V under load and 19V with main board disconnected.
                            Backlight stays on all the time,
                            Sound works fine.
                            screen keeps changing form black to full picture in about 1sec intervals.
                            Picture looks fine with no visible artifacts.
                            I have disconnected backlights and flashlight test confirmed that picture is still doing the same.


                            Disconnecting left and right ribbons on...
                            11-25-2023, 06:32 PM
                          • Loading...
                          • No more items.
                          Working...