Samsung UE32ES6100WXXN. Not working, No Standby light

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  • MartijnG
    New Member
    • Jan 2018
    • 8
    • Nederland
    #1

    Samsung UE32ES6100WXXN. Not working, No Standby light

    Hello All,

    I got a strange problem with my Samsung TV UE32ES6100WXXN.
    PSU model = BN44-00517A
    Main board model = BN41-01812(A)
    TCON board model = BN41-01789A
    Living in Europe

    Observation:
    No standby light when plugged into the power.
    TV won't power on, with remote or button on tv.

    What probably happend:
    I was messing with the service menu, didn't change parameter.
    Then somehow the menu was frozen so i disconnected the power.
    Plugged in again (some sparks) and it didn't turn on.

    Troubleshooting:
    - First inspection for bad capacitors/damaged or burned spots = CHECKED AND OK

    - Check the incoming voltage on the PSU. Measured at the two parallel big caps (100uf 450V) = 320V = OK (230V powerplug * √2 = 325V)

    - Check control voltage. Measured at the connector cable between the PSU and Main. (CNM803). = All 0V except A5V = 5.4V and Power on/off = 0.25V

    - Checked for hot components on the PSU. = All OK

    - Plugged the main board cable out of the PSU, and checked the Voltage again. = Backlight is on (no display)! Voltage on the connector is now:
    1. NC
    2. NC
    3. OD_on/Off = 4.29V
    4. NC
    5. GND
    6. PWM_DIM2 = 3.24V
    7. B13V = 12.99V
    8. PWM_DIM1 = 3.24V
    9. B13V = 12.99V
    10. B13V = 12.99V
    11. VAMP = 12.99V
    12. BLU_on/Off = 3.02V
    13. VAMP = 12.99V
    14. GND
    15. GND
    16. GND
    17. B5V = 5.39V
    18. A5V = 5.4V
    19. B5V = 5.39V
    20. Power On/Off = 3.4V

    - So the main board switches the PSU off. (Power on/off signal)
    I forced the PSU on with a 1k ohm resistor between PS_ON and A5V (Pull UP). Checked the Main board voltages = 3V3 = OK, 1V8 = OK
    Observation: Still no standby light or powering on. Only a red LED below on the main board (OP301). And the big microcontroller is a bit warmer.

    - Also tried EEPROM reset. = still no progress.

    Questions:
    - Is there any solution for this problem?
    - What did i miss to check/measure or try?
    - What does the Red LED (OP301) on the main board means?
    - Does it looks like a hardware or software (dead lock etc) failure?
    - If no solution, which part do i need to buy to fix my tv? Im thinking the main board, because the voltages on PSU are OK.

    I hope you guys can help me with my TV. I have currently no ideas left..

    Thanks a lot!

    Greetings,
    Martijn

    PS. I have solder and electronics skill.
    Tags: None
    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6642
      • Wales
      #2
      Re: Samsung UE32ES6100WXXN. Not working, No Standby light

      What probably happend:
      I was messing with the service menu, didn't change parameter.
      Then somehow the menu was frozen so i disconnected the power.
      Plugged in again (some sparks) and it didn't turn on.
      If you were in the "service menu" then you may have inadvertently adjusted some settings. However if it was working before you went into the service menu then I cannot see any reason why a hardware fault should have occurred and think you may have corrupted the Flash memory.
      Willing to help but I'm no expert.

        Comment

        • MartijnG
          New Member
          • Jan 2018
          • 8
          • Nederland
          #3
          Re: Samsung UE32ES6100WXXN. Not working, No Standby light

          Thanks for the reply. So even with a corrupt flash memory the main board can power off the power with the power on/off signal? What do you think is the best option? Search for the flash chip on the main board and replace? Or any kind of reset?
          I hope we can figure something out..

            Comment

            • dick_barton
              Badcaps Legend
              • Aug 2015
              • 6642
              • Wales
              #4
              Re: Samsung UE32ES6100WXXN. Not working, No Standby light

              .Unfortunately I don't know what to suggest. Perhaps others may be able to offer you further guidance.

              You also say
              Plugged in again (some sparks) and it didn't turn on
              .
              Did you see sparks and where or were the sparks at the mains plug when plugging it back in?
              Willing to help but I'm no expert.

                Comment

                • MartijnG
                  New Member
                  • Jan 2018
                  • 8
                  • Nederland
                  #5
                  Re: Samsung UE32ES6100WXXN. Not working, No Standby light

                  Thanks for the reply again.
                  I hope others will help me further.

                  I plugged the cable out the back of the TV. Then back in (the cord had already power) the TV.
                  I saw some sparks when plugged in, just at the metal pins of the connector. From my experience its normal. I think it was just some conduction sparks. I don't see any sparks on the boards.

                    Comment

                    • koka0011
                      Member
                      • Apr 2013
                      • 30
                      • Sri Lanka
                      #6
                      Re: Samsung UE32ES6100WXXN. Not working, No Standby light

                      did you reflash the memory ic?

                        Comment

                        • MartijnG
                          New Member
                          • Jan 2018
                          • 8
                          • Nederland
                          #7
                          Re: Samsung UE32ES6100WXXN. Not working, No Standby light

                          No i didn't. How do i reflash the memory IC?

                          Thanks

                            Comment

                            • MartijnG
                              New Member
                              • Jan 2018
                              • 8
                              • Nederland
                              #8
                              Re: Samsung UE32ES6100WXXN. Not working, No Standby light

                              Is there any flash bin file for the eeprom on the Samsung BN41-01812 main board?

                                Comment

                                • bpitou
                                  New Member
                                  • Apr 2023
                                  • 1
                                  • France
                                  #9
                                  Re: Samsung UE32ES6100WXXN. Not working, No Standby light

                                  Hello. I have the same main board BN41-01812, but for a 46' TV samsung from 2012. When the main borad is plugged to the power supply, only a red stanby led is lighted. When I unplug the main board from the psu board, the backlight fash. So I guess that the main board is faulty. I am looking a schematic diagram of this main board in order to figure out what component has failded. Thanks you if you have a solution or any idea.
                                  Best.

                                    Comment

                                    • Davi.p
                                      Hobbist Tech
                                      • Sep 2009
                                      • 4302
                                      • Italy - Milan
                                      #10
                                      Re: Samsung UE32ES6100WXXN. Not working, No Standby light

                                      I worry a lot when i see in this forum people that takes possession of other people thread! I have read the first post for no reason! grrrrr!

                                        Comment

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