WESTINGHOUSE SK-32H540S Transformer board damage

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  • retiredcaps
    Badcaps Legend
    • Apr 2010
    • 9271

    #21
    Re: WESTINGHOUSE SK-32H540S Transformer board damage

    Originally posted by lilmonk3
    12.5=1.3----12.10
    12.5=1.3----12.11
    GRD= MINUS 0.05---MINUS 12.9
    GRD= MINUS 0.04---MINUS 11.3
    5VS= 4.87--- 4.92
    5V= 2.1--- 4.90
    5V= 2.1--- 4.91
    5V= 1.9--- 4.89
    GRD= MINUS 0.03---MINUS 13.0
    GRD= MINUS 0.04--- MINUS 11.2
    PS_ON= 22.7--- 4.48
    BL_ON= 11.1---4.86
    V_PW= 2.84--- 163.6
    Anytime I see a negative reading, it means you are using the wrong ground. GRD is GND => abbreviation for ground. Ground should always be 0V.

    Put your black probe on a ground screw or chassis when taking readings on the cold side.
    Last edited by retiredcaps; 09-07-2012, 07:00 PM.
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    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271

      #22
      Re: WESTINGHOUSE SK-32H540S Transformer board damage

      Originally posted by lilmonk3
      First numbers are with AC plugged in and second set is plugged in and power button pushed.
      V_PW= 2.84--- 163.6
      If the reading on V_PW were really 163.6V DC, every capacitor on the cold side would have exploded as soon as you hit power.
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      • lilmonk3
        Badcaps Veteran
        • Apr 2012
        • 259
        • USA

        #23
        Re: WESTINGHOUSE SK-32H540S Transformer board damage

        I have the black probe crammed in a hole on the chassis .. And yes GND..Fingers work faster than brain sometimes

        Comment

        • retiredcaps
          Badcaps Legend
          • Apr 2010
          • 9271

          #24
          Re: WESTINGHOUSE SK-32H540S Transformer board damage

          Either your multimeter is defective (low battery, shoddy probes) or you are doing something wrong. I suggest remeasuring.
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          • lilmonk3
            Badcaps Veteran
            • Apr 2012
            • 259
            • USA

            #25
            Re: WESTINGHOUSE SK-32H540S Transformer board damage

            Here is a picture..
            Attached Files

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            • lilmonk3
              Badcaps Veteran
              • Apr 2012
              • 259
              • USA

              #26
              Re: WESTINGHOUSE SK-32H540S Transformer board damage

              If just replaced the battery last night.. And if it was funky probes, wouldnt all my readings be funky??
              And when I seen that reading I retested and retested... Diff. ground points ect.
              Last edited by lilmonk3; 09-07-2012, 07:31 PM.

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              • retiredcaps
                Badcaps Legend
                • Apr 2010
                • 9271

                #27
                Re: WESTINGHOUSE SK-32H540S Transformer board damage

                Try this.

                Power off, unplug lcd, wait 5 minutes.

                Set your multimeter to measure resistance.

                Put your black probe on chassis. Put your red probe on any pin marked GND. What is reading?
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                • retiredcaps
                  Badcaps Legend
                  • Apr 2010
                  • 9271

                  #28
                  Re: WESTINGHOUSE SK-32H540S Transformer board damage

                  Originally posted by lilmonk3
                  Here is a picture..

                  V_PW= 2.84--- 163.6
                  Okay, I see the picture. Reread post #18 and tell me what is wrong with the above that you posted.

                  If you don't think accuracy and precision matter, I'll move on.
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                  • lilmonk3
                    Badcaps Veteran
                    • Apr 2012
                    • 259
                    • USA

                    #29
                    Re: WESTINGHOUSE SK-32H540S Transformer board damage

                    MV is what it said..

                    Comment

                    • retiredcaps
                      Badcaps Legend
                      • Apr 2010
                      • 9271

                      #30
                      Re: WESTINGHOUSE SK-32H540S Transformer board damage

                      Then report it as 163.6mV or 0.1636V. The way you reported it leads us on a wild goose chase. Units matters.

                      M = mega, m = milli.
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                      • lilmonk3
                        Badcaps Veteran
                        • Apr 2012
                        • 259
                        • USA

                        #31
                        Re: WESTINGHOUSE SK-32H540S Transformer board damage

                        Sorry.. But mommy duties sometimes get me rushing when I am posting..

                        Comment

                        • lilmonk3
                          Badcaps Veteran
                          • Apr 2012
                          • 259
                          • USA

                          #32
                          Re: WESTINGHOUSE SK-32H540S Transformer board damage

                          its mV

                          Comment

                          • lilmonk3
                            Badcaps Veteran
                            • Apr 2012
                            • 259
                            • USA

                            #33
                            Re: WESTINGHOUSE SK-32H540S Transformer board damage

                            Solved.. Took it to E-Waste

                            Comment

                            • woaimi
                              Senior Member
                              • Sep 2005
                              • 94
                              • US

                              #34
                              Re: WESTINGHOUSE SK-32H540S Transformer board damage

                              oh man! you could have donate it to budm or retiredcaps or any experienced members here to help the rest of us solve that freaking problem .... j/k

                              I put my project on hold to focus on fixing my leaky bathroom valve. it's pretty bad i have a whole drywall cut out to treat the soaking wet frame studs. Anyway, I haven't yet give up on the set, will get back to it once I'm done with my own problem. Replacing the board with a different one is not an option.

                              Comment

                              • lilmonk3
                                Badcaps Veteran
                                • Apr 2012
                                • 259
                                • USA

                                #35
                                Re: WESTINGHOUSE SK-32H540S Transformer board damage

                                I agree woaimi.. Replacing the power/inverter board is not an option.. I am sure I can go down to ewaste and get it.. They dont get rid of stuff until the first of the month.. But if I dont get it back, please keep me updated on how or what ya come up with..

                                Comment

                                • sam_sam_sam
                                  Badcaps Legend
                                  • Jul 2011
                                  • 6065
                                  • USA

                                  #36
                                  Re: WESTINGHOUSE SK-32H540S Transformer board damage

                                  Originally posted by lilmonk3
                                  Here is a picture..
                                  I have that same meter and it is not the best meter in the world

                                  Comment

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