Problem with Samsung LE40R86WD

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  • Mikeyboy2007
    Badcaps Veteran
    • Mar 2013
    • 745
    • Scotland

    #1

    Problem with Samsung LE40R86WD

    hi guys got a samsung Tv from a recycling place, thinks it an older one as its very similar to my 37" samsung.. when i switched it on for the first time after getting it, it started flashing red LED which lets me know it was trying to come out of standby as my own samsung does that. then heard a click then it went of again, its not getting to the point when the backlights kick in yet. I popped the back off the tv and replaced a few failed caps (outlined in RED) tryed to start tv up and was doing the same thing, the click just before tv goes back into standby sounds like its coming from the little black box (outlined in YELLOW) can anybody relate to this or come across same problem. thanks
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: Problem with Samsung LE40R86WD

    Can't see your pic...

    If you only replaced some of the caps, go back and replace them all using Panasonic FM/FR/FC or similar good caps like Rubycon/Nichicon/Chemicon.

    After this you may need to do an EEPROM reset which involves soldering two wires to a device on the main board, but first all caps should be replaced.
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

    Comment

    • Mikeyboy2007
      Badcaps Veteran
      • Mar 2013
      • 745
      • Scotland

      #3
      Re: Problem with Samsung LE40R86WD

      picture for above description
      Attached Files

      Comment

      • Mikeyboy2007
        Badcaps Veteran
        • Mar 2013
        • 745
        • Scotland

        #4
        Re: Problem with Samsung LE40R86WD

        by all caps do you mean all caps on the board or 4 black ones and the blue one in the top right hand corner Tom66.. thanks

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: Problem with Samsung LE40R86WD

          All ones near the power connector going to the main board on the power supply. I'd probably leave the 450V alone as it's usually fine.
          Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
          For service manual, schematic, boardview (board view), datasheet, cad - use our search.

          Comment

          • Mikeyboy2007
            Badcaps Veteran
            • Mar 2013
            • 745
            • Scotland

            #6
            Re: Problem with Samsung LE40R86WD

            thanks tom.. i found a repair kit on ebay, comes with all the caps that need replaced and the EEPROM. search ebay for TKIT2, purchased a few repair kits from the guy before.

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK

              #7
              Re: Problem with Samsung LE40R86WD

              Would never buy an eBay repair kit. also you do not need new eeprom, only a simple jumper to fix it.
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

              Comment

              • Mikeyboy2007
                Badcaps Veteran
                • Mar 2013
                • 745
                • Scotland

                #8
                Re: Problem with Samsung LE40R86WD

                ok tom thanks.. will look at what caps are on the board and order panasonic caps

                Comment

                • Mikeyboy2007
                  Badcaps Veteran
                  • Mar 2013
                  • 745
                  • Scotland

                  #9
                  Re: Problem with Samsung LE40R86WD

                  Originally posted by tom66
                  Would never buy an eBay repair kit. also you do not need new eeprom, only a simple jumper to fix it.
                  is it just these caps i need to replace Tom66
                  Attached Files

                  Comment

                  • tom66
                    EVs Rule
                    • Apr 2011
                    • 32560
                    • UK

                    #10
                    Re: Problem with Samsung LE40R86WD

                    Those should be all that are needed.
                    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                    Comment

                    • Mikeyboy2007
                      Badcaps Veteran
                      • Mar 2013
                      • 745
                      • Scotland

                      #11
                      Re: Problem with Samsung LE40R86WD

                      hi Tom replaced all the caps but tv is still trying to boot up then clicking back off

                      Comment

                      • tom66
                        EVs Rule
                        • Apr 2011
                        • 32560
                        • UK

                        #12
                        Re: Problem with Samsung LE40R86WD

                        OK, so now you need to remove the main board and look for an 8 pin IC with a part number beginning with "24". e.g. 24LC16. I think it should be 24C256. You're looking at the part number printed on the chip, not the label on the circuit board.
                        Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                        For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                        Comment

                        • Mikeyboy2007
                          Badcaps Veteran
                          • Mar 2013
                          • 745
                          • Scotland

                          #13
                          Re: Problem with Samsung LE40R86WD

                          ok found one. says EEPROM next to it, number is 24C2563N

                          Comment

                          • tom66
                            EVs Rule
                            • Apr 2011
                            • 32560
                            • UK

                            #14
                            Re: Problem with Samsung LE40R86WD

                            Picture of it, please.
                            Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                            For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                            Comment

                            • Mikeyboy2007
                              Badcaps Veteran
                              • Mar 2013
                              • 745
                              • Scotland

                              #15
                              Re: Problem with Samsung LE40R86WD

                              picture as requested
                              Attached Files

                              Comment

                              • tom66
                                EVs Rule
                                • Apr 2011
                                • 32560
                                • UK

                                #16
                                Re: Problem with Samsung LE40R86WD

                                OK, you need to solder two wires to each of the marked pins, pins 5 and 6.

                                Then install the main board in the set so the wires are exposed and easily accessible. Make sure they don't touch any part of the power supply though.

                                Tie the two wires together, they must be shorted.

                                Plug the TV in and turn it on. It should fail to turn on, or it may turn on with incorrect settings. After about 15 seconds, disconnect the jumpers.

                                Then turn the set off again. Should be in standby.

                                Using the remote key in Info Menu Mute Power. (If the set fails to turn on, repeat this step with the jumper connected but disconnect it once you are in the service menu.)

                                Select RESET in the service menu.

                                Turn the set off if it does not turn off automatically.

                                Turn it back on.

                                The TV should now be fixed.
                                Attached Files
                                Last edited by tom66; 07-10-2013, 08:13 AM.
                                Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                                For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                                Comment

                                • Mikeyboy2007
                                  Badcaps Veteran
                                  • Mar 2013
                                  • 745
                                  • Scotland

                                  #17
                                  Re: Problem with Samsung LE40R86WD

                                  thanks Tom66 will give it a try and let you know how i get on thanks

                                  Comment

                                  • Mikeyboy2007
                                    Badcaps Veteran
                                    • Mar 2013
                                    • 745
                                    • Scotland

                                    #18
                                    Re: Problem with Samsung LE40R86WD

                                    Thanks Tom66. did exactly what you said. worked 2nd time around. noticed that when tvs backlight is between 3 and 7 in brightness it tends to do a kinda pulsing light. could this be a problem with backlights ? if it put it on 10 which is dullest or 1 which seems to be brightest it works fine but pulses otherwise.

                                    Comment

                                    • tom66
                                      EVs Rule
                                      • Apr 2011
                                      • 32560
                                      • UK

                                      #19
                                      Re: Problem with Samsung LE40R86WD

                                      I've had this issue before. I think it's a design error, I have never figured it out. Does the Movie or Cinema mode (or any other picture mode) make the screen go green tinted too?
                                      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                                      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                                      Comment

                                      • johnboy1313
                                        Badcaps Legend
                                        • Nov 2012
                                        • 1959
                                        • USA

                                        #20
                                        Re: Problem with Samsung LE40R86WD

                                        Check this out, you may have the same issue.

                                        https://www.badcaps.net/forum/showth...hlight=samsung

                                        Comment

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