bush 42 3d tv well samsung :)

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  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #21
    Re: bush 42 3d tv well samsung

    Check each of the transistors on the heatsink - though the very fact the voltages drop out when it is connected is indicative of a fault and the board should be replaced.
    Note without the X-main you could get a little flicker from the screen when turned on with only Y-main - try in a dark room - the control board will quickly shut down though so it will only be quick.
    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

    • adamp91gvm
      Badcaps Veteran
      • Jan 2014
      • 699
      • uk

      #22
      Re: bush 42 3d tv well samsung

      I tried I get power of 0.41v to the 2nd 4th and 5th and nothing to the rest top being the one by xs
      Attached Files

      Comment

      • adamp91gvm
        Badcaps Veteran
        • Jan 2014
        • 699
        • uk

        #23
        Re: bush 42 3d tv well samsung

        And I get a flicker from the y main just bing in a flash of white with black lines

        Comment

        • adamp91gvm
          Badcaps Veteran
          • Jan 2014
          • 699
          • uk

          #24
          Re: bush 42 3d tv well samsung

          Does that mean my y main is ok

          Comment

          • Alastair E
            Chief Womble
            • Mar 2013
            • 1963
            • U.K.

            #25
            Re: bush 42 3d tv well samsung

            Think so!

            So,--You need to repair or replace the X-SUS board.....

            Whats the going rate for 'em?
            TELEFIX

            How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
            http://www.irf.com/technical-info/appnotes/an-1088.pdf
            PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

            Comment

            • Alastair E
              Chief Womble
              • Mar 2013
              • 1963
              • U.K.

              #26
              Re: bush 42 3d tv well samsung

              Just checked--If you're really stuck, Ive got a known good and tested X-SUS for a 42C450, I was keeping as a spare for mine....
              TELEFIX

              How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
              http://www.irf.com/technical-info/appnotes/an-1088.pdf
              PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

              Comment

              • adamp91gvm
                Badcaps Veteran
                • Jan 2014
                • 699
                • uk

                #27
                Re: bush 42 3d tv well samsung

                How much mate I have been looking at a few

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK

                  #28
                  Re: bush 42 3d tv well samsung

                  You don't want to be checking for "power" (I presume you mean voltage; voltage is not the same as power though) you want to check each transistor or diode for shorts, using your multimeter on the ohms range.
                  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

                  • adamp91gvm
                    Badcaps Veteran
                    • Jan 2014
                    • 699
                    • uk

                    #29
                    Re: bush 42 3d tv well samsung

                    Is this a compasitor because I'm getting 15v from one side and nothing from the other but it goes to every circuit on the board and there is no volts after it could this go bad
                    Attached Files
                    Last edited by adamp91gvm; 02-21-2014, 04:42 AM.

                    Comment

                    • vinceroger69
                      Badcaps Legend
                      • Mar 2012
                      • 6714
                      • uk

                      #30
                      Re: bush 42 3d tv well samsung

                      wrong thread sorry

                      Comment

                      • adamp91gvm
                        Badcaps Veteran
                        • Jan 2014
                        • 699
                        • uk

                        #31
                        Re: bush 42 3d tv well samsung

                        The problem I'm having is I'm not getting power to the rest of the board but 15v goes up to there

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK

                          #32
                          Re: bush 42 3d tv well samsung

                          That is a capacitor. Decoupling the 15V supply.

                          Now, if the 15V is present but Vs/Va are missing, it suggest a short on Vs, preventing it from reaching ~205V.

                          Have you checked the heatsinked transistors for shorts?
                          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

                          • adamp91gvm
                            Badcaps Veteran
                            • Jan 2014
                            • 699
                            • uk

                            #33
                            Re: bush 42 3d tv well samsung

                            Where do I need to test on them ?
                            Attached Files

                            Comment

                            • tom66
                              EVs Rule
                              • Apr 2011
                              • 32560
                              • UK

                              #34
                              Re: bush 42 3d tv well samsung

                              Just check across all three pins, both ways, on diode mode.
                              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

                              • adamp91gvm
                                Badcaps Veteran
                                • Jan 2014
                                • 699
                                • uk

                                #35
                                Re: bush 42 3d tv well samsung

                                What black on one red on the other and mix it up it get the combinations

                                Comment

                                • adamp91gvm
                                  Badcaps Veteran
                                  • Jan 2014
                                  • 699
                                  • uk

                                  #36
                                  Re: bush 42 3d tv well samsung

                                  The one with the pin sticking out is not going to 0 it's going to 0.98

                                  Comment

                                  • tom66
                                    EVs Rule
                                    • Apr 2011
                                    • 32560
                                    • UK

                                    #37
                                    Re: bush 42 3d tv well samsung

                                    All combinations.

                                    Mentally number pins 1-2-3 in any order but be consistent over each device, for two pin devices just use 1-2.

                                    Then check red 1 black 2, red 1 black 3, red 2 black 1, etc...
                                    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

                                    • adamp91gvm
                                      Badcaps Veteran
                                      • Jan 2014
                                      • 699
                                      • uk

                                      #38
                                      Re: bush 42 3d tv well samsung

                                      Ok right top one goes to 0 all combinations
                                      Second down stayed on 1
                                      3rd stays near enough one 1 all combinations
                                      4th 5.02 on pins 1 to 3 and stays on 1 on any other combination
                                      5th 5.02 all combos
                                      6th goes to 0

                                      Comment

                                      • tom66
                                        EVs Rule
                                        • Apr 2011
                                        • 32560
                                        • UK

                                        #39
                                        Re: bush 42 3d tv well samsung

                                        So there's your fault, shorted sustain transistors. I'd take Alistair up on his offer of a 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

                                        • adamp91gvm
                                          Badcaps Veteran
                                          • Jan 2014
                                          • 699
                                          • uk

                                          #40
                                          Re: bush 42 3d tv well samsung

                                          I found one for 19 delivered I asked Alistair but he never got back to me not ordered it yet like

                                          Comment

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