Sony Bravia KDL-42W705B

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • chrle
    Senior Member
    • Sep 2013
    • 158
    • slovakia
    #1

    Sony Bravia KDL-42W705B

    hello I have problem with my sony bravia.

    when I turn on tv I get backlight ,sound but no picture.

    I changed T-con, on old t-con was burned chip.

    bad panel or mainboard?
    Tags: None
    • chrle
      Senior Member
      • Sep 2013
      • 158
      • slovakia
      #2
      Re: Sony Bravia KDL-42W705B

      disconnected one and another cable from t-con to panel ,still no picture on half side on screen.

      I hear some sound from T-con ,not good to my ears

      original t-con burned :TX-5542T35C01-43C T420HNO06.2 BD

      replace with : TX5542T34C05-55U T420HVN06.2 BD

      after replace I got orange/amber flashing light

      updated firmware ,tv turn on but no picture.

        Comment

        • freakaftr8
          Badcaps Legend
          • Oct 2012
          • 3743
          • USA
          #3
          Re: Sony Bravia KDL-42W705B

          Do you mean you had picture on one side when you disconnected 1 cable from tcon to panel?
          Did I leave the soldering iron on?

            Comment

            • freakaftr8
              Badcaps Legend
              • Oct 2012
              • 3743
              • USA
              #4
              Re: Sony Bravia KDL-42W705B

              Also please post picture of tcon. Also measure voltage on tcon inductor coils
              Did I leave the soldering iron on?

                Comment

                • chrle
                  Senior Member
                  • Sep 2013
                  • 158
                  • slovakia
                  #5
                  Re: Sony Bravia KDL-42W705B

                  Originally posted by freakaftr8
                  Do you mean you had picture on one side when you disconnected 1 cable from tcon to panel?
                  no, a dont have picture when disconnect one cable from t-con to panel.

                    Comment

                    • chrle
                      Senior Member
                      • Sep 2013
                      • 158
                      • slovakia
                      #6
                      Re: Sony Bravia KDL-42W705B

                      burned T-con and replacement.
                      Attached Files

                        Comment

                        Previous template Next

                        Related Topics

                        Collapse
                        • iglitare
                          Sony KD-75XF9005 grey Picture but Sound. TCON or panel?
                          by iglitare
                          Hi,

                          i want to repair a Sony KD-75XF9005 TV that initially only showed a grey picture.
                          Backlight seems to work, Sound (Setup menu after reset) works.
                          If i dissconnect the left FFC cable from TCON to panel i have half a screen on the right. If left cable is connected always only the grey screen.
                          Interchanged the cables, its always only the right side that is working. Always grey if left side is connected.
                          With my small knowledge i would think at least the cables are good.

                          Can this happen because of a bad tcon board?
                          Or is it always a bad/shorted...
                          09-04-2025, 07:13 AM
                        • CyberPhoenix
                          Issue with picture quality of Sony bravia TV
                          by CyberPhoenix
                          Hello, Last week I bought the 50" Sony X80j tv everything was working fine, untill I plugged the tv in a ups power supply 650va the tv remote control became unresponsive and the TV became laggy after a while the picture quality isn't the same as before the tv seems less brighter and the picture is somehow blurry, people's faces don't look as natural as before, there is a mini orange-pink tint to the edge of people's faces especially in NETFLIX Dolby Vision like in One Piece ep1 Alvida skin tone, my intention was to protect the tv but something went wrong I checked the ups with a multimeter,...
                          Badcaps Electronics Repair Forum & Schematic Search - Badcaps
                          https://www.badcaps.net
                          01-22-2024, 02:08 AM
                        • Spc.
                          Sony Bravia KD43XF7596BAEP - Android no picture
                          by Spc.
                          Greetings everyone.
                          I also have Sony Bravia, model:
                          Sony Bravia KD43XF7596BAEP - Android.

                          What happend is that image dissapeared while we were watching tv.

                          Diagnostics:
                          1. TV turns on, no errors
                          2. Backlight turs on, no errors
                          3. Power indicator turns on, white color, no errors
                          4. Menu works on android, you can hear sound while switching channels
                          5. Volume up and down works via TV remote and via buttons
                          6. Tunner works, HEVC / MPEG-4 decoder works
                          7. I get audio from channels
                          8. No picture is present,...
                          05-19-2022, 04:28 AM
                        • KYBOSH
                          Trying to Save - SONY BRAVIA KD-75X780F - No Picture BUT there’s sound
                          by KYBOSH
                          Previous owner said TV just went blank one day.
                          They attempted to open the back panel and yanked the power connector off the power supply in the meantime.
                          Easily fixed that and got the TV to turn on. Backlights come one with everything connected. Good Sign.
                          The mainboard shows signs of life (red light on digital audio out is on) but that's about it. Good Sign.
                          There is not blinking LED and the most importantly there is LED response and sound when I press the MENU button on remote control. GREAT Sign.

                          I just downloaded the Sony KD-75X7800F Service Manual and...
                          11-19-2024, 10:12 AM
                        • lmcancu
                          Sony Bravia 65x900F BL On but not picture
                          by lmcancu
                          I was watching youtube yesterday, when I paused it to go to the washroom. When I came back, the right side of the screen was showing half of the youtube channel and the left was black. I powered off/on the unit with the remote and now I have no picture whatsoever except for the bluish backlight. I did the factory reset (power + vol down), and now I when I power on I get the startup music, backlight but no picture.

                          I took the back cover off, and reseated all cables but unfortunately same issue. I took some voltage measurements on the main 2 headers from the power supply board and...
                          10-30-2023, 07:01 PM
                        • Loading...
                        • No more items.
                        Working...