Logik LOG32lw782

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  • joehezzer
    Badcaps Veteran
    • Jul 2012
    • 251
    • England

    #1

    Logik LOG32lw782

    Hi all ok so i picked up a logik lcd screen the other week, no power so checked all the fuses etc nothing so i found a cheap working psu for and bought it, the problem i have is i fitted new second hand new board and it is still not doing anything at all







    the problem is i am not sure what to check on this set cheers in advance
  • joehezzer
    Badcaps Veteran
    • Jul 2012
    • 251
    • England

    #2
    Re: Logik LOG32lw782



    Comment

    • multimeter
      Badcaps Veteran
      • Jan 2011
      • 739
      • united kingdom

      #3
      Re: Logik LOG32lw782

      id be checking for dry joints,this psu suffers badly with them big time !

      also they suffer with bad caps.

      change the output caps with panasonic fc/fm series,it should fix it.

      thats all ive had to do on these psu's

      i think they are g luxon,caps yuck..
      Last edited by multimeter; 01-12-2014, 08:44 AM.
      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

      • joehezzer
        Badcaps Veteran
        • Jul 2012
        • 251
        • England

        #4
        Re: Logik LOG32lw782

        its supposed to be a working psu, will re solder some of the joints on it

        Comment

        • multimeter
          Badcaps Veteran
          • Jan 2011
          • 739
          • united kingdom

          #5
          Re: Logik LOG32lw782

          seriously resolder them joints,ive found about 10-20 cold joints on these
          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

          • joehezzer
            Badcaps Veteran
            • Jul 2012
            • 251
            • England

            #6
            Re: Logik LOG32lw782

            will get on it now will report my progress is it pretty common with this set then

            Comment

            • multimeter
              Badcaps Veteran
              • Jan 2011
              • 739
              • united kingdom

              #7
              Re: Logik LOG32lw782

              yes ,these are used in a lot of generic tv's,they really are a pile of crap
              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

              • joehezzer
                Badcaps Veteran
                • Jul 2012
                • 251
                • England

                #8
                Re: Logik LOG32lw782

                Are there any test points on these sets

                Comment

                • multimeter
                  Badcaps Veteran
                  • Jan 2011
                  • 739
                  • united kingdom

                  #9
                  Re: Logik LOG32lw782

                  Originally posted by joehezzer
                  Are there any test points on these sets
                  i cant remember exactly ,ive only ever had to replace caps,and redo joints ,every time on this psu,this normally fixes them
                  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

                  • joehezzer
                    Badcaps Veteran
                    • Jul 2012
                    • 251
                    • England

                    #10
                    Re: Logik LOG32lw782

                    It should be a working psu it was tested before dispatch.

                    Comment

                    • multimeter
                      Badcaps Veteran
                      • Jan 2011
                      • 739
                      • united kingdom

                      #11
                      Re: Logik LOG32lw782

                      yes it SHOULD be working,many a time i have done this ,and tested psu and it hasnt worked,there is no way of knowing if the tests have been done,the advert is usually...


                      power supply taken from a broken screen tv...blah blah,you get the picture
                      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

                      • joehezzer
                        Badcaps Veteran
                        • Jul 2012
                        • 251
                        • England

                        #12
                        Re: Logik LOG32lw782

                        yeah lol

                        Comment

                        • joehezzer
                          Badcaps Veteran
                          • Jul 2012
                          • 251
                          • England

                          #13
                          Re: Logik LOG32lw782

                          ok so i have taken the main avi board off to find one of the caps joints looks rough



                          there does not seem to be a copper to solder the cap to
                          sorry about the pick thats about as close to it i can get.
                          Last edited by joehezzer; 01-12-2014, 10:08 AM.

                          Comment

                          • multimeter
                            Badcaps Veteran
                            • Jan 2011
                            • 739
                            • united kingdom

                            #14
                            Re: Logik LOG32lw782

                            Originally posted by joehezzer
                            ok so i have taken the main avi board off to find one of the caps joints looks rough



                            there does not seem to be a copper to solder the cap to
                            sorry about the pick thats about as close to it i can get.
                            dont forget the psu!

                            on that capacitor with no pad around it,scratch some of the silkscreen off,you may find some copper underneath to solder too.

                            or run a jumper wire to the cap pads next to it,to the correct pad - to - or + to +,
                            Last edited by multimeter; 01-12-2014, 10:23 AM.
                            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

                            • joehezzer
                              Badcaps Veteran
                              • Jul 2012
                              • 251
                              • England

                              #15
                              Re: Logik LOG32lw782

                              Originally posted by multimeter
                              dont forget the psu!

                              on that capacitor with no pad around it,scratch some of the silkscreen off,you may find some copper underneath to solder too.

                              or run a jumper wire to the cap pads next to it,to the correct pad - to - or + to +,
                              will try that

                              Comment

                              • joehezzer
                                Badcaps Veteran
                                • Jul 2012
                                • 251
                                • England

                                #16
                                Re: Logik LOG32lw782

                                ok all soldered up looks ok

                                Comment

                                • multimeter
                                  Badcaps Veteran
                                  • Jan 2011
                                  • 739
                                  • united kingdom

                                  #17
                                  Re: Logik LOG32lw782

                                  Originally posted by joehezzer
                                  ok all soldered up looks ok
                                  re-fit ,and power up to see what happens
                                  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

                                  • joehezzer
                                    Badcaps Veteran
                                    • Jul 2012
                                    • 251
                                    • England

                                    #18
                                    Re: Logik LOG32lw782

                                    nothing although when i put plug into my white extension lead you can see a blue/flash spark at that particular plug, everything is telling me its the psu as there is no power, no standby light nothing

                                    Comment

                                    • multimeter
                                      Badcaps Veteran
                                      • Jan 2011
                                      • 739
                                      • united kingdom

                                      #19
                                      Re: Logik LOG32lw782

                                      Originally posted by joehezzer
                                      nothing although when i put plug into my white extension lead you can see a blue/flash spark at that particular plug, everything is telling me its the psu as there is no power, no standby light nothing
                                      id be concentrating on the power supply,joints +output caps if that is the case.
                                      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

                                      • joehezzer
                                        Badcaps Veteran
                                        • Jul 2012
                                        • 251
                                        • England

                                        #20
                                        Re: Logik LOG32lw782

                                        Originally posted by multimeter
                                        id be concentrating on the power supply,joints +output caps if that is the case.
                                        thats the only thing i can think of.
                                        Last edited by joehezzer; 01-12-2014, 12:48 PM.

                                        Comment

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