Sony KDL70W850

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Elroy
    New Member
    • Dec 2013
    • 6
    • Belize

    #1

    Sony KDL70W850

    Morning i have a Sony KDL70W850 that i am working on anyone have a service manual or schematic to please help me with
  • nomoresonys
    Badcaps Legend
    • Jan 2013
    • 12075
    • U.S.

    #2
    Re: Sony KDL70W850

    What's wrong with it?

    Comment

    • Elroy
      New Member
      • Dec 2013
      • 6
      • Belize

      #3
      Re: Sony KDL70W850

      came in power up and then turn off error code 5 blinks. I disconnected the T-Con board and it stay on with backlight. Check T-Con not getting any voltage at fuse. Change main board and the LED on panel light green

      Comment

      • nomoresonys
        Badcaps Legend
        • Jan 2013
        • 12075
        • U.S.

        #4
        Re: Sony KDL70W850

        Usually always need to update/pair the new mainboard, sonys especially.

        Comment

        • Elroy
          New Member
          • Dec 2013
          • 6
          • Belize

          #5
          Re: Sony KDL70W850

          tried update as was mention but to no avail.

          Comment

          • nomoresonys
            Badcaps Legend
            • Jan 2013
            • 12075
            • U.S.

            #6
            Re: Sony KDL70W850

            With tv unplugged press and hold power and volume down buttons on tv, keep holding while plugging in tv you can let go when you see green light on front or tv starts up.

            Comment

            • nomoresonys
              Badcaps Legend
              • Jan 2013
              • 12075
              • U.S.

              #7
              Re: Sony KDL70W850

              Can try, with tv unplugged from power disconect one tcon ribbon cable at a time plug in tv check display, then do same on other side, to avoid problems always connect and disconnect cables with tv unplugged from power, report results.
              Last edited by nomoresonys; 02-09-2022, 05:55 PM.

              Comment

              • nomoresonys
                Badcaps Legend
                • Jan 2013
                • 12075
                • U.S.

                #8
                Re: Sony KDL70W850

                After that, maybe check the little caps on the panel driver board for shorts or very low ohms, there's other components on them that can go bad too, the caps are easy to check, probably expect over 100 ohms, if the panel is not easy to get at maybe try the tape cut-off method, been covered here many times, can put it in search above.

                Comment

                • dskall
                  Badcaps Legend
                  • Oct 2016
                  • 2905
                  • usa

                  #9
                  Re: Sony KDL70W850

                  Originally posted by Elroy
                  came in power up and then turn off error code 5 blinks. I disconnected the T-Con board and it stay on with backlight. Check T-Con not getting any voltage at fuse. Change main board and the LED on panel light green
                  So did you then get voltage at your t-con?
                  I assume no responsibility for any stupid suggestions I might post.

                  Comment

                  • nomoresonys
                    Badcaps Legend
                    • Jan 2013
                    • 12075
                    • U.S.

                    #10
                    Re: Sony KDL70W850

                    Wondering if maybe the tv didn't care for the usb drive, can you try another usb drive and follow the procedure on sony site very closely.

                    Comment

                    • charlie555
                      Senior Member
                      • Feb 2018
                      • 76
                      • usa

                      #11
                      Re: Sony KDL70W850

                      Disconnect one of the ribbon cables from panel board to tcon board then check for image then the other side.

                      Comment

                      Related Topics

                      Collapse

                      • Hakuu
                        LG OLED77G1PUA - No Video / Audio after a TCON Board change and Software Update
                        by Hakuu
                        Hi There,

                        This TV was auto switching off after few seconds with some vertical lines on the screen, so got a new TCON board and replaced it.

                        After replacing the TCON board it was working fine and i set it up with everything, used for few hours, then had the bright idea to update the software on it. During the update process, TV switched off and now no audio or video. No relay switch sound.

                        More Details

                        TV Model - LG OLED77G1PUA

                        Got the same exact TCON board from TVPartsToday and replaced it. But didnt transfer the EPPROM data (didnt...
                        07-12-2023, 02:37 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...
                        11-22-2024, 01:46 PM
                      • advant
                        Driving a Sharp TCON/panel with a universal main board
                        by advant
                        This thread is about trying to get an Universal Main Board to work with a Sharp TCON and panel.

                        I have a Sharp LC-46D85UN TV that has had a main board issue. Since this model is from 2009, I am not able to find an exact replacement of the main board. Instead, I decided to see if I can future proof this tv by getting a Universal Main Board (T53U21.2) from China to work with the Sharp TCON (CPWBX4291TPZA) and panel. The universal main board supports a 8 bit dual channel LVDS interface whereas the TCON requires a 10 bit dual channel LVDS input. I have modded the LVDS connector to match...
                        02-03-2020, 12:25 AM
                      • m1ch43lzm
                        HP Pavilion 15-eh Board DAG7HAMB8F0 - CPU throttling to 0.4GHz (PROCHOT_EXT) and black screen
                        by m1ch43lzm
                        Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
                        Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic...
                        05-12-2025, 08:37 PM
                      • gersrt
                        Ordered Wrong TCON Board For Sony TV, Can I flash Epprom
                        by gersrt
                        HI

                        Made a mistake and ordered the wrong TCON board to replace in my KDL-46HX823, the board I ordered was Sony PLY 1-883-893-11 which is sort of correct.

                        But later realized this board is used in 4 or 5 models, any way the one i got sent was for KDL-55HX820.

                        Physically these boards are identical, everything on the board is the same. I havent put this board into the TV yet, but am I right in saying all i would have to do is copy the Epprom from my faulty board and transfere it on to the new board, or is there still something else that may stop this working....
                        01-27-2021, 05:49 PM
                      • Loading...
                      • No more items.
                      Working...