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    #1

    Samsung Sp-s4243 turn on but no picture

    HI I have this Samsung Sp24243 that when you push power button it blinks a blue light four times. It has sound but no picture. I tested all fuses and were ok then checked caps and same no problem. Any advice on this one
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    #2
    Re: Samsung Sp-s4243 turn on but no picture

    Originally posted by hpaca509 View Post
    HI I have this Samsung Sp24243 that when you push power button it blinks a blue light four times. It has sound but no picture. I tested all fuses and were ok then checked caps and same no problem. Any advice on this one
    1. The model number you gave does not appear to be a legitimate Samsung model number.

    2. What does the service manual say the blinking light means?

    PlainBill
    For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

    Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

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      #3
      Re: Samsung Sp-s4243 turn on but no picture

      sorry meant s4234

      Comment

        #4
        Re: Samsung Sp-s4243 turn on but no picture

        s4243

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          #5
          Re: Samsung Sp-s4243 turn on but no picture

          I went through the manual real quick and in the trouble shooting section it states that blank screen means you x or why board is bad or the DC-DC SMPS could be a problem.
          I think my problem could be the DC-DC SMPS.
          On the manual it says:

          "DC-DC SMPS= Blank screen, the Relay repeats On and Off."

          Does relay repeat mean led turn on and off?

          Comment

            #6
            Re: Samsung Sp-s4243 turn on but no picture

            Originally posted by hpaca509 View Post
            I went through the manual real quick and in the trouble shooting section it states that blank screen means you x or why board is bad or the DC-DC SMPS could be a problem.
            I think my problem could be the DC-DC SMPS.
            On the manual it says:

            "DC-DC SMPS= Blank screen, the Relay repeats On and Off."

            Does relay repeat mean led turn on and off?
            No.

            PlainBill
            For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

            Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

            Comment

              #7
              Re: Samsung Sp-s4243 turn on but no picture

              Originally posted by hpaca509 View Post
              HI I have this Samsung Sp24243 that when you push power button it blinks a blue light four times. It has sound but no picture. I tested all fuses and were ok then checked caps and same no problem. Any advice on this one
              Look at Section 6-2-3 on page 53 of the service manual.

              PlainBill
              For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

              Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

              Comment

                #8
                Re: Samsung Sp-s4243 turn on but no picture

                Good morning all I have done all the check points on the main board and dc dc smps board and number were good to the sticker on back of pane. Then on page 58 it to check logic board for proper voltages of 5v,3.3v. How do I check the voltages on that board. Two of the leds light up in a normal pattern first one lights then the other lights up. It is a normal rythm. Should all leds be on?

                Comment

                  #9
                  Re: Samsung Sp-s4243 turn on but no picture

                  Samsung does not have error code at all.

                  The lights that you saw on the logic board (this behind the mainboard) is just indictors that they are getting power and active.

                  With TV unplugged from mains, go over all fuses with meter for open fuse. If found one that is blown, that means the board is shorted out.

                  Keep us updated.

                  Cheers, Wizard

                  Comment

                    #10
                    Re: Samsung Sp-s4243 turn on but no picture

                    I had aleady dont that and none of my fuses were blown. They were all ok

                    Comment

                      #11
                      Re: Samsung Sp-s4243 turn on but no picture

                      what do you mean by open fuse?
                      sorry i am new to all this but have learned alot from you guys.

                      Comment

                        #12
                        Re: Samsung Sp-s4243 turn on but no picture

                        An 'open' fuse is one that has given its life in sacrifice to keep the rest of the circuit from blowing up. The fuse limits current flow, and when there is too much, it melts, opening the circuit that was heretofore closed. There will be infinite [essentially] resistance across the leads of an open fuse.
                        tom

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                          #13
                          Re: Samsung Sp-s4243 turn on but no picture

                          hello everyone i have done all checks points for vs,va,vset, and i got all good numbers. i checked all my fuses. My next question is where would i check to see if my y main board is working or x main board. I also have visualy inspected boards to see any burnt or damaged parts/blown caps and havent seen any. I posted an ad on CL in my area to see if anyone has a tv thats the same so i can replace parts. I would like to learn and try to replace what parts are needed replaced in the boards themselves.

                          Comment

                            #14
                            Re: Samsung Sp-s4243 turn on but no picture

                            i haven't been able to find fuses f5001 and f5002. which are check points on the y main board

                            Comment

                              #15
                              Re: Samsung Sp-s4243 turn on but no picture

                              here is a pic of the board
                              Attached Files

                              Comment

                                #16
                                Re: Samsung Sp-s4243 turn on but no picture

                                Originally posted by PlainBill View Post
                                Look at Section 6-2-3 on page 53 of the service manual.

                                PlainBill
                                I need the service manual for Samsung Sp-s4243. Can anyone help me?

                                Comment

                                  #17
                                  Re: Samsung Sp-s4243 turn on but no picture

                                  uploaded it here

                                  http://www.4shared.com/document/tGx4...A_N_42SD_.html

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