toshiba 47wlt66 help

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  • azza1234
    Senior Member
    • Nov 2013
    • 124
    • united kingdom

    #1

    toshiba 47wlt66 help

    Picked this and a phillips 42inch ambilight last night the phillips tv has a smashed screen so that's going to the tip but the screen on the Toshiba seems ok so I plugged the Toshiba in and was greeted with a dark screen with just the backlight on nothing else happens no menu etc when powered down with the standby switch then powered up again there are coloured lines down the screen which fade and it goes back to the dark screen and backlight could this be a bad tcon or isit another bad panel? Cheers
    Attached Files
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: toshiba 47wlt66 help

    Can we see the whole back side of the TV so we can see how all the boards are connected? It may be T-CON board problem.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment

    • azza1234
      Senior Member
      • Nov 2013
      • 124
      • united kingdom

      #3
      Re: toshiba 47wlt66 help

      Originally posted by budm
      Can we see the whole back side of the TV so we can see how all the boards are connected? It may be T-CON board problem.
      Here's the pictures hope there ok
      Attached Files

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #4
        Re: toshiba 47wlt66 help

        Try unplugging one of the ribbon cables from the T-con board, one at a time. Could be shorted panel. If picture comes back in part it would confirm 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

        • azza1234
          Senior Member
          • Nov 2013
          • 124
          • united kingdom

          #5
          Re: toshiba 47wlt66 help

          Originally posted by tom66
          Try unplugging one of the ribbon cables from the T-con board, one at a time. Could be shorted panel. If picture comes back in part it would confirm it.
          Hi I tried the ribbons 1 by 1 and still no picture still has the Lines any ideas

          Comment

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK

            #6
            Re: toshiba 47wlt66 help

            Picture of the T-con 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

            • azza1234
              Senior Member
              • Nov 2013
              • 124
              • united kingdom

              #7
              Re: toshiba 47wlt66 help

              Originally posted by tom66
              Picture of the T-con board?
              Hi already put the tv back together and didn't get a picture of the t con ive got a stock picture mines exactly the same
              Attached Files

              Comment

              • tom66
                EVs Rule
                • Apr 2011
                • 32560
                • UK

                #8
                Re: toshiba 47wlt66 help

                Can't see anything in that picture; you're going to need to provide a much bigger one.
                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

                • azza1234
                  Senior Member
                  • Nov 2013
                  • 124
                  • united kingdom

                  #9
                  Re: toshiba 47wlt66 help

                  Originally posted by tom66
                  Can't see anything in that picture; you're going to need to provide a much bigger one.
                  Ok I will get one as soon as I can

                  Thankyou

                  Comment

                  • anmol
                    Senior Member
                    • Mar 2012
                    • 73
                    • India

                    #10
                    Re: toshiba 47wlt66 help

                    Check voltage as red circle on front pcb and post here.
                    Regards
                    Attached Files
                    Last edited by anmol; 09-10-2014, 01:16 AM.

                    Comment

                    • azza1234
                      Senior Member
                      • Nov 2013
                      • 124
                      • united kingdom

                      #11
                      Re: toshiba 47wlt66 help

                      Originally posted by anmol
                      Check voltage as red circle on front pcb and post here.
                      Regards
                      I took the tcon board out this morning and just cross examined it with your picture of the tcon and it appears up9 has been soldered but its been soldered over other solder points would this be the problem?
                      Attached Files

                      Comment

                      • tom66
                        EVs Rule
                        • Apr 2011
                        • 32560
                        • UK

                        #12
                        Re: toshiba 47wlt66 help

                        Looks like it's been replaced before. Maybe it is bad again?
                        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

                        • anmol
                          Senior Member
                          • Mar 2012
                          • 73
                          • India

                          #13
                          Re: toshiba 47wlt66 help

                          @ tom66,

                          I agree with u. may be need to replace up9. also check up8.

                          Regards
                          Last edited by anmol; 09-10-2014, 08:18 AM.

                          Comment

                          • azza1234
                            Senior Member
                            • Nov 2013
                            • 124
                            • united kingdom

                            #14
                            Re: toshiba 47wlt66 help

                            Originally posted by anmol
                            @ tom66,

                            I agree with u. may be need to replace up9. also check up8.

                            Regards
                            Ok what are the components called and where would I find them? ive looked up the numbers on them but nothing comes up?

                            Comment

                            • tom66
                              EVs Rule
                              • Apr 2011
                              • 32560
                              • UK

                              #15
                              Re: toshiba 47wlt66 help

                              Maybe you should tell us what's printed on them...
                              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

                              • azza1234
                                Senior Member
                                • Nov 2013
                                • 124
                                • united kingdom

                                #16
                                Re: toshiba 47wlt66 help

                                Originally posted by tom66
                                Maybe you should tell us what's printed on them...
                                Sorry been moving and the tv is at my mums from the pictures I have got the components say

                                Mmc6100d 25 f613 &
                                Mmc6100d 25 f620

                                Hope this helps

                                Comment

                                • azza1234
                                  Senior Member
                                  • Nov 2013
                                  • 124
                                  • united kingdom

                                  #17
                                  Re: toshiba 47wlt66 help

                                  Originally posted by azza1234
                                  Sorry been moving and the tv is at my mums from the pictures I have got the components say

                                  Mmc6100d 25 f613 &
                                  Mmc6100d 25 f620

                                  Hope this helps
                                  Upon some research am I right in thinking these are dc voltage regulators? If so which ones will I need to get to replace them? Many thanks

                                  Comment

                                  • azza1234
                                    Senior Member
                                    • Nov 2013
                                    • 124
                                    • united kingdom

                                    #18
                                    Re: toshiba 47wlt66 help

                                    Got new tcon board and problem solved working good as new again thanks for everyone's help

                                    Comment

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