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Samsung LN46C630K1F

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    #21
    Re: Samsung LN46C630K1F

    Seems like it, unless your lvds cable from main to tcon has an issue.

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      #22
      Re: Samsung LN46C630K1F

      Yes

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        #23
        Re: Samsung LN46C630K1F

        Thank you guys, I'll look for another board. Like I said, they are very scarce.

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          #24
          Re: Samsung LN46C630K1F

          You could check the voltage on the main board, It looks like that 8 pin mosfet (near the lvds cable) is the control for the t-con voltage, check the voltage onpin 1,2or3 (in) Pin 4 is the gate, and 5,6,7,8 go to the tcon.
          There is also a small sot23-3 transistor off the gate that is likely the switch for the t-con voltage.
          There is also a 7809 regulator near that mosfet, It likely has 12 volts on its input and 9 volts on its output.

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            #25
            Re: Samsung LN46C630K1F

            Hi guys

            I got a new Mainboard. It differs in the following

            Original BN94-02701G
            New one BN94-02701J

            According to SJ and some other sites the two boards are compatible.

            It now does switch on, but it's got very bad picture. This is a TV that worked fine before this. I must say, when I took out the LVDS Cable between the T-CON and the Mainboard, a piece of the cable broke off and was left in the T-CON. I however could remove it afterwards. I ordered a new LVDS cable so that shouldn't be a problem.

            AM I looking at a new T-CON. I did clean the FFC cables with IPA
            Attached Files
            Last edited by henryvrensburg; 12-01-2018, 04:58 PM.

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              #26
              Re: Samsung LN46C630K1F

              Hard to tell, the new lvds cable might fix it.

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                #27
                Re: Samsung LN46C630K1F

                This is with the new LVDS cable.

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                  #28
                  Re: Samsung LN46C630K1F

                  From the picture it looks like a panel or tcon issue.

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                    #29
                    Re: Samsung LN46C630K1F

                    On a few of the Samsung's I've put a new main board on, I've had to change various service menu parameters to make the board match the the TV model you're putting it in.

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                      #30
                      Re: Samsung LN46C630K1F

                      Hi TeeEeeKay

                      Can you please elaborate on your comment. What do I have to do to get this TV working. I ordered a new T-CON as well

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                        #31
                        Re: Samsung LN46C630K1F

                        Originally posted by henryvrensburg View Post
                        Hi TeeEeeKay

                        Can you please elaborate on your comment. What do I have to do to get this TV working. I ordered a new T-CON as well
                        Take a look at this info. https://www.avsforum.com/forum/166-l...re-update.html

                        I know this isn't the same model number as your set but you might look up service menu parameters for your set. It deals with issues after firmware updates, but I've had to do the same thing after main board replacement. Many sets (possibly yours) use the same main board for a bunch of different models with various types of LCD screens so the main boards you are acquiring may have the wrong parameters for your particular model.

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                          #32
                          Re: Samsung LN46C630K1F

                          Hi guys

                          So I put in a new T-CON, new LVDS cable, and the picture looks like the attached photo. At this stage I'm thinking this TV doesn't want to work again.

                          Do you think it can be the different Mainboard? I also followed TeeEeeKay's advise and checked the settings in the Service Menu, (the settings were correct)

                          The last picture looks like T-CON, but it looks the same with the old T-CON

                          Any more ideas. Thanks everyone
                          Attached Files
                          Last edited by henryvrensburg; 12-17-2018, 05:44 PM.

                          Comment


                            #33
                            Re: Samsung LN46C630K1F

                            Did you try a factory reset with this new setup? if that doesn't help try a firmware update/reapply if possible.

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                              #34
                              Re: Samsung LN46C630K1F

                              I tried a factory reset with the same result. I also updated the firmware to the newest firmware available. Still same.

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                                #35
                                Re: Samsung LN46C630K1F

                                Originally posted by henryvrensburg View Post
                                Hi guys

                                So I put in a new T-CON, new LVDS cable, and the picture looks like the attached photo. At this stage I'm thinking this TV doesn't want to work again.

                                Do you think it can be the different Mainboard? I also followed TeeEeeKay's advise and checked the settings in the Service Menu, (the settings were correct)

                                The last picture looks like T-CON, but it looks the same with the old T-CON

                                Any more ideas. Thanks everyone
                                can you post what settings you actually have instead of "they were correct"?

                                Comment


                                  #36
                                  Re: Samsung LN46C630K1F

                                  Maybe check those little capacitors on tcon for shorts, diode mode, probe on each side, tv unplugged.

                                  Comment


                                    #37
                                    Re: Samsung LN46C630K1F

                                    Hi guys

                                    Just to give some feedback. I ordered a LDV cable from another reputable TV Parts supplier. The cable arrived, I installed it and it is now working perfectly. It seems as if there is a lot of defective parts on the NET.

                                    Thank you for every one reading this, and for the advise and help. Much appreciated

                                    Comment


                                      #38
                                      Re: Samsung LN46C630K1F

                                      So do you think one of the wires in the first replacement lvds cable is broken?
                                      Last edited by nomoresonys; 02-03-2019, 07:11 PM.

                                      Comment


                                        #39
                                        Re: Samsung LN46C630K1F

                                        I think so, yes. I put the old/new cable back after I got it working and it did the same. SO it must be the cable.

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