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Samsung LE40A656 - Power LED blinking

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    #1

    Samsung LE40A656 - Power LED blinking

    Got this TV for £40. I've already repaired the same model but with a different fault - it had a T-con issue.

    Fault: Power LED blinks intermittently. No sign of powering up.

    Anyway upon opening it, the problem was very apparent. It has at least three bad caps.

    I will replace them all - and consider keeping this TV for ourselves and replacing our old 42" 720p (dumpster find too. ) This is 40" (so a tiny bit smaller) but 1080p and with 100Hz motion interpolation, 4 HDMI and USB.

    Heating the caps with the hair dryer for 3 minutes made the TV power up with a perfect picture.

    Would you believe what Currys (crappy electronics retailer in the UK) said it was? A starter motor!!!! I kid you not!!

    Video will be up soon on diagnosis.
    Attached Files
    Last edited by tom66; 07-30-2012, 03:02 PM.
    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.
    Tags: None
    #2
    Re: Samsung LE40A656 - Power LED blinking

    those inverter transformers look like, LIF42-001 SC-03B's ?,very simular to the power supply used in lg lcd tv's, EAX55357701 ?.dont like the way the ccfls are wired as a block with those transformers.

    makes it hard to troubleshoot 2 secs to black(swapping individual ccfls).
    fixed so far...376 lg lcd tv's,24 onn tv;s,24 panasonic lcd,16 jvc lcd,12 marshall jcm800 amps,refurb of various disco equipment lighting,old style disco decks ,and a flymo!

    ----------------------------------------------
    please let us know if everything works ok if your tv gets fixed, as it will be and aid for anyone else having the same problem and wishing to fix it.it would save people clogging up this site with topics that are duplicated,and can be found easily using the search function.,and taking up valuable space.enjoy your fixed tv!,hopefully!

    Comment

      #3
      Re: Samsung LE40A656 - Power LED blinking

      by the way ,you should have said to currys ,that your off your rotor arm !
      fixed so far...376 lg lcd tv's,24 onn tv;s,24 panasonic lcd,16 jvc lcd,12 marshall jcm800 amps,refurb of various disco equipment lighting,old style disco decks ,and a flymo!

      ----------------------------------------------
      please let us know if everything works ok if your tv gets fixed, as it will be and aid for anyone else having the same problem and wishing to fix it.it would save people clogging up this site with topics that are duplicated,and can be found easily using the search function.,and taking up valuable space.enjoy your fixed tv!,hopefully!

      Comment

        #4
        Re: Samsung LE40A656 - Power LED blinking

        I'm not sure whether or not I prefer 24V or mains-primary inverters. I've repaired all 24V inverters thus far; but only the occasional Samsung or LG uses them, so it's comparatively rare.

        BTW, have a 32" LCD and 42" plasma to pick up Wednesday - both Samsungs . I think the 32" has the same fault as this 40", bad caps. The plasma may just be solder joints.
        Last edited by tom66; 07-30-2012, 04:25 PM.
        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

          #5
          Re: Samsung LE40A656 - Power LED blinking

          Originally posted by tom66 View Post
          Got this TV for £40. I've already repaired the same model but with a different fault - it had a T-con issue.

          Fault: Power LED blinks intermittently. No sign of powering up.

          Anyway upon opening it, the problem was very apparent. It has at least three bad caps.

          I will replace them all - and consider keeping this TV for ourselves and replacing our old 42" 720p (dumpster find too. ) This is 40" (so a tiny bit smaller) but 1080p and with 100Hz motion interpolation, 4 HDMI and USB.

          Heating the caps with the hair dryer for 3 minutes made the TV power up with a perfect picture.

          Would you believe what Currys (crappy electronics retailer in the UK) said it was? A starter motor!!!! I kid you not!!

          Video will be up soon on diagnosis.
          You Brits have all the luck these days. What with all those glorious women's beach volleyball and women's gymnastics bodies and a 1080p set to watch it on. Not to downplay the good buy on the tv. But, you have to have priorities.
          Have you ever stopped to think and then forget to start thinking again?

          As a very wise man once said on this forum: "Of all the things I have lost I miss my mind the most."

          Comment

            #6
            Re: Samsung LE40A656 - Power LED blinking

            Video: http://www.youtube.com/watch?v=Ggn_g...ature=youtu.be

            If you look in the right places, you can find plenty of nice TVs to fix. You just have to know what to buy.
            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

              #7
              Re: Samsung LE40A656 - Power LED blinking

              those nasty A656s with the faulty starter motors again :P
              Last edited by senndogg; 07-31-2012, 02:54 AM. Reason: misspell

              Comment

                #8
                Re: Samsung LE40A656 - Power LED blinking

                Originally posted by senndogg View Post
                those nasty A656s with the faulty starter motors again :P
                Sometimes the alternator goes too, and that can cause problems with the charging system.
                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

                  #9
                  Re: Samsung LE40A656 - Power LED blinking

                  tom,you really should clean your workshop up mate
                  fixed so far...376 lg lcd tv's,24 onn tv;s,24 panasonic lcd,16 jvc lcd,12 marshall jcm800 amps,refurb of various disco equipment lighting,old style disco decks ,and a flymo!

                  ----------------------------------------------
                  please let us know if everything works ok if your tv gets fixed, as it will be and aid for anyone else having the same problem and wishing to fix it.it would save people clogging up this site with topics that are duplicated,and can be found easily using the search function.,and taking up valuable space.enjoy your fixed tv!,hopefully!

                  Comment

                    #10
                    Re: Samsung LE40A656 - Power LED blinking

                    Originally posted by multimeter View Post
                    tom,you really should clean your workshop up mate
                    Gotta get rid of the 50" pioneer! Been far too much trouble!
                    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

                      #11
                      Re: Samsung LE40A656 - Power LED blinking

                      Originally posted by tom66 View Post
                      Gotta get rid of the 50" pioneer! Been far too much trouble!
                      they are normally built like tanks!
                      fixed so far...376 lg lcd tv's,24 onn tv;s,24 panasonic lcd,16 jvc lcd,12 marshall jcm800 amps,refurb of various disco equipment lighting,old style disco decks ,and a flymo!

                      ----------------------------------------------
                      please let us know if everything works ok if your tv gets fixed, as it will be and aid for anyone else having the same problem and wishing to fix it.it would save people clogging up this site with topics that are duplicated,and can be found easily using the search function.,and taking up valuable space.enjoy your fixed tv!,hopefully!

                      Comment

                        #12
                        Re: Samsung LE40A656 - Power LED blinking

                        Originally posted by multimeter View Post
                        they are normally built like tanks!
                        Agree, but it has a bad panel! Vertical white bar. Very well built TV!
                        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

                          #13
                          Re: Samsung LE40A656 - Power LED blinking

                          the biggest issue i see is the videocamera :P go HD!
                          hey where can we see the 50"pioneer thread?

                          Comment

                            #14
                            Re: Samsung LE40A656 - Power LED blinking

                            Originally posted by senndogg View Post
                            the biggest issue i see is the videocamera :P go HD!
                            hey where can we see the 50"pioneer thread?
                            https://www.badcaps.net/forum/showthread.php?t=20392
                            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

                              #15
                              Re: Samsung LE40A656 - Power LED blinking

                              Sometimes the drive belts need adjusting!

                              Comment

                                #16
                                Re: Samsung LE40A656 - Power LED blinking

                                Originally posted by AlbertRoss View Post
                                Sometimes the drive belts need adjusting!
                                And don't forget regular oil changes!
                                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

                                  #17
                                  Re: Samsung LE40A656 - Power LED blinking

                                  New caps in. Fixed.

                                  Video soon...
                                  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

                                    #18
                                    Re: Samsung LE40A656 - Power LED blinking

                                    Video: http://www.youtube.com/watch?v=CjrrZ...ature=youtu.be
                                    (It might still be processing.)
                                    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

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