Where can I buy transformers in UK

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  • Ice203
    Senior Member
    • May 2015
    • 99
    • Uk

    #1

    Where can I buy transformers in UK

    I'm in need of a transformer for a goodmans TV. Numbers on transformer are
    Mlt666bx-t2.
    Ymx-604-048.
    Can anyone help.
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: Where can I buy transformers in UK

    Is this an inverter transformer, or some other transformer?
    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

    • Ice203
      Senior Member
      • May 2015
      • 99
      • Uk

      #3
      Re: Where can I buy transformers in UK

      I think it's a inverter transformer.
      Have a goodmans TV that won't turn on. But if I remove this transformer the TV works fine.

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #4
        Re: Where can I buy transformers in UK

        But it can be the devices that drive the transformer are bad.
        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

        • Ice203
          Senior Member
          • May 2015
          • 99
          • Uk

          #5
          Re: Where can I buy transformers in UK

          I done a few tests on the transformer and I'm sure it's faulty.

          Comment

          • budm
            Badcaps Legend
            • Feb 2010
            • 40746
            • USA

            #6
            Re: Where can I buy transformers in UK

            Like what? How about the devices that drive the transformer?
            Pictures of the board?
            This one?
            http://www.ebay.fr/itm/MLT666BX-T1-T...item1c2c318ae2
            BTW, "Have a goodmans TV that won't turn on. But if I remove this transformer the TV works fine." so how can it work fine without the transformer? Something does not make sense here.
            Last edited by budm; 05-12-2015, 02:37 PM.
            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

            • Ice203
              Senior Member
              • May 2015
              • 99
              • Uk

              #7
              Re: Where can I buy transformers in UK

              Just what I saw in YouTube. Testing ohm's.
              Will do pics tomorrow.

              Comment

              • Ice203
                Senior Member
                • May 2015
                • 99
                • Uk

                #8
                Re: Where can I buy transformers in UK

                Yeah that's the board. Removed middle transformer and TV works. Very weird.

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA

                  #9
                  Re: Where can I buy transformers in UK

                  There is no inverter transformer on that power supply board.
                  Those two big one are the power transformers, not sure if they are for the 12V/24V supplies and if they are driven by the same circuit.
                  DRC on the primary side will show very low resistance, so you think it is shorted out.
                  Ohm meter cannot really be used to find out if the transformer is really good or bad, you can do comparison reading on the High voltage side but that does not mean if it has shorted turn it is still good because Ohm meter will not be able to show that. You need ringer for testing.
                  Need to find out how it is driven, if they are driven in parallel, and if the rectifiers in the secondary is shorted, you should check them.
                  Post good clear pictures of the connectors and the bottom side of the board. Those transformer rarely goes out.
                  Last edited by budm; 05-12-2015, 02:50 PM.
                  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

                  • Ice203
                    Senior Member
                    • May 2015
                    • 99
                    • Uk

                    #10
                    Re: Where can I buy transformers in UK

                    Sry. I'm new to all this so might get names wrong. On the board there are two transformers the same. I've removed the bottom one of the two.

                    Comment

                    • budm
                      Badcaps Legend
                      • Feb 2010
                      • 40746
                      • USA

                      #11
                      Re: Where can I buy transformers in UK

                      I will wait for the pictures, you already check the rectifier diodes on the output side of the transformer that you removed?
                      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

                      • Ice203
                        Senior Member
                        • May 2015
                        • 99
                        • Uk

                        #12
                        Re: Where can I buy transformers in UK

                        added a photo of a similar board as not been home yet. the transformer ive removed is circled in red,
                        just seems strange the tv works without it,

                        all the testing ive done is from what ive read on this site and your tube,
                        i also replaced the rectifier
                        Last edited by Ice203; 05-14-2015, 02:52 PM.

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK

                          #13
                          Re: Where can I buy transformers in UK

                          Can't see any pictures.
                          Please use "Manage Attachments" feature to upload pictures.
                          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

                          • budm
                            Badcaps Legend
                            • Feb 2010
                            • 40746
                            • USA

                            #14
                            Re: Where can I buy transformers in UK

                            The transfomers may be driven in parallel for the 24V, so if one is bad, removing the bad one will allow the power supply to function at at half power. Need to see the bottom side of the board to verify.
                            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

                            • tom66
                              EVs Rule
                              • Apr 2011
                              • 32560
                              • UK

                              #15
                              Re: Where can I buy transformers in UK

                              It's pretty rare to see these transformers fail because they are safety devices. If the windings burn on failure, then it can break down the insulation tape. That is at least according to the power supply guy at my workplace. So personally I would be quite surprised if the transformer were bad.
                              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

                              • budm
                                Badcaps Legend
                                • Feb 2010
                                • 40746
                                • USA

                                #16
                                Re: Where can I buy transformers in UK

                                That is why I would like to see the good clear pictures if the bottom side of the board to figure out what is going on.
                                I myself never have to replace any power transformer yet.
                                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

                                • Ice203
                                  Senior Member
                                  • May 2015
                                  • 99
                                  • Uk

                                  #17
                                  Re: Where can I buy transformers in UK


                                  Comment

                                  • stj
                                    Great Sage 齊天大聖
                                    • Dec 2009
                                    • 30901
                                    • Albion

                                    #18
                                    Re: Where can I buy transformers in UK

                                    that's a long post

                                    Comment

                                    • tom66
                                      EVs Rule
                                      • Apr 2011
                                      • 32560
                                      • UK

                                      #19
                                      Re: Where can I buy transformers in UK

                                      The photo isn't clear enough to tell, but it looks like the transformers are connected in some kind of series or parallel arrangement. That's quite unusual.
                                      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

                                      • budm
                                        Badcaps Legend
                                        • Feb 2010
                                        • 40746
                                        • USA

                                        #20
                                        Re: Where can I buy transformers in UK

                                        I need better focused pictures of the bottom side of the board.
                                        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

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