samsung UE40EH6030WXXN not working

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • anno
    Senior Member
    • Sep 2007
    • 140
    • netherlands
    #1

    samsung UE40EH6030WXXN not working

    i have a samsung UE40EH6030WXXN that is not working. led blinked 4 times.
    i changed the power supply BN44-00552A but still the tv is not working.

    the power led is blinking 4 times (if i`m correct)
    the ps-on signal is coming to 3.3v , the psu voltages are correct. But then the ps-on signal is going to 0v. When i disconnect the TCON cable from the mainboard the ps-on signal is staying stable at 3.3v . But nothing happens. no backlight or image.

    i tried to find a short on the TCON . I connect 12v external power supply to the fuse of tcon, but there is no short. it is taking 200ma.

    mainboard is bn41-01894a
    anyone can help?
    Tags: None
    • paulstef
      Badcaps Veteran
      • Dec 2013
      • 724
      • Canada
      #2
      Re: samsung UE40EH6030WXXN not working

      If you had an oscilloscope you could measure output voltage on the PSU LED connector. I had a few of these TVs with burnt LEDs.

        Comment

        • dick_barton
          Badcaps Legend
          • Aug 2015
          • 6642
          • Wales
          #3
          Re: samsung UE40EH6030WXXN not working

          Have you checked the Tcon fuse is OK and not open circuit?

          Edit
          Sorry, not open if current flowing. Have you checked any voltages on the Tcon board which may be marked eg VCC_1.2V, HVIN_12V, HAVDD, AVDD etc
          Last edited by dick_barton; 09-22-2017, 05:47 AM.
          Willing to help but I'm no expert.

            Comment

            • anno
              Senior Member
              • Sep 2007
              • 140
              • netherlands
              #4
              Re: samsung UE40EH6030WXXN not working

              The Tcon fuse is ok. How to check the PSU LED connector. i have a scope.
              which pins i have to check?

                Comment

                • dskall
                  Badcaps Legend
                  • Oct 2016
                  • 2905
                  • usa
                  #5
                  Re: samsung UE40EH6030WXXN not working

                  I would be checking for the various voltages on t-con
                  I assume no responsibility for any stupid suggestions I might post.

                    Comment

                    • riogrande75
                      New Member
                      • May 2010
                      • 1
                      #6
                      Re: samsung UE40EH6030WXXN not working

                      Hi!
                      I know its quite a long time ago, but I just ask: Do you still have a close picture of the mainboard (BN41-01894A)? I need to know the type of IC 204 near the connector to the power supply board.
                      Thx,
                      Rio

                        Comment

                        Previous template Next

                        Related Topics

                        Collapse
                        • DynaxSC
                          ASUS ROG STRIX B550-I GAMING - M.2_2 port not working correctly with SAMSUNG SSD980 1TB NVME SSD
                          by DynaxSC
                          Hi,

                          I have an really very weired issue with ASUS ROG STRIX B550-I GAMING.

                          Some NVME (PCIe) SSD's are not working correctly in the second M.2 socket. An example of it is the SAMSUNG SSD980 1TB NVME SSD.
                          Some other NVME (I have only smaller ones) disk do work without any problem, also SAMSUNG disks, eg an MZVPV128HDGM-0000.

                          The behaviour is also really very strange, i.e.:
                          • The disk shows always up in BIOS - so it is recognized, so far so good
                          • POST-ing with this disk with fresh Windows 24H2 installation (done in the M.2_1 socket) in the M.2_2 socket
                          ...
                          02-23-2025, 01:33 PM
                        • thesame
                          Samsung UE40F6670SS messed tcon type in service mode.
                          by thesame
                          Hy guys i have this Samsung Tv model UE40F6670SS and i have messed with the service menu and selected the wrong tcon type .Is there a way to reset the service menu to defaults or how can i find the right tcon type since i didnt took a picture or remember the original setting?
                          Since i have selected the wrong tcon type the colors are a bit strange and sometimes the backlight it looks like its auto adjusting... ...
                          11-22-2023, 03:04 PM
                        • triplefour
                          Samsung UN55ES7003 has blown fuse on TCON and short to ground.
                          by triplefour
                          Samsung UN55ES7003
                          made house call.
                          red power led comes on, blinks twice, no display, no backlight, relay clicks, repeat.
                          psu has self test feature.
                          disconnected from mainboard.
                          determined PSU ok BL ok.
                          suspect mainboard.
                          disconnecting tcon has no change on operation.
                          markings on mainboard:

                          BN97-06531P 0151
                          BN94-06123R

                          found and ordered replacement on ebay https://www.ebay.com/itm/394077328633
                          for 54$

                          second house call:
                          with replacement mainboard, tv turns on, has sound,...
                          07-13-2022, 03:53 PM
                        • shelby5041
                          Samsung LCD TV no picture backlight on no 12v at tcon
                          by shelby5041
                          hi
                          i have a samsung lcd tv

                          it powers on with sound and backlight but no picture

                          all voltages from PS are good 12v 3.3v and 5v

                          whats odd is that at the tcon i tested voltage across the fuse on the tcon and i get 0v

                          i figured main board issue..so i ordered a used main board....when i put replacement main board in i still have same issue

                          no 12v at the tcon fuse

                          i disconnect the panel ribbon cables to rule out any panel issues and i still have no 12v at the tcon fuse

                          the odds of having 2...
                          10-08-2021, 08:21 AM
                        • x_orange90_x
                          TCL 50S535 bad tcon or panel issue?
                          by x_orange90_x
                          Just bought this for 10 bucks yesterday hoping to fix it. The guy said water dropped inside from a dehumidifier hose and it started showing black and white vertical bars then went blank. When I got it home and turned it on it came on fine and displayed correctly but I was noticing faint vertical bars in the image. After a little bit I turned it off and back on and it was a black screen again. I opened it up to check for water damage and corrosion but didn't find anything of the sort. I cleaned the ribbons anyway and reconnected them but still got a blank screen. If I disconnect the right side...
                          03-29-2025, 11:02 PM
                        • Loading...
                        • No more items.
                        Working...