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Frustration With elactronics and Its tools!!!

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    #1

    Frustration With elactronics and Its tools!!!

    I know I am cryin a bit here......

    I am a total noob to the electronics world. I got in to fixin tvs about 2 years ago. I have been reading like crazy.

    So here is my gripe:

    CAPACITORS!!! I got an ESR meter after getting burned a couple times with caps that had good capacitance but still didnt work.....OK so I now have this ESR meter that should tidy up all the other Hiding BAD caps....Not so much. Just recently I tested a capacitor that was clearly bulging, good capacitance and good ESR. So Next Cap: I replaced a voltage regulator down stream and fired the welder up. BANG this cap literally blew up and sent its guts all over everything! replaced it with another cap and now the welder(inverter) works...WTF

    I wish when troubleshooting you had tools to actually TEST components!

    How do u real techs deal with this? Did I stumble upon some rare caps or is this common?
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    #2
    Re: Frustration With elactronics and Its tools!!!

    There are tools to test the parts lol example:

    Multimeter
    Esr meter
    Lcr meter
    Os scope
    Variac

    What are you trying to fix ?
    Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

    https://www.facebook.com/Telford-Tel...7894576335359/

    Comment

      #3
      Re: Frustration With elactronics and Its tools!!!

      When cap blew up, it sounds like wrong polarity Voltage was applied or over Voltage applied.
      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

        #4
        Re: Frustration With elactronics and Its tools!!!

        Originally posted by ReeceyBurger123 View Post
        There are tools to test the parts lol example:

        Multimeter
        Esr meter
        Lcr meter
        Os scope
        Variac

        What are you trying to fix ?
        Add to list-- Isolating Transformer, Insulation-Tester (Good for blowing up stuff!), PAT Tester.

        I have all the above, but rarely use more than 35 year old Beckman multimeter!

        Any suspicions about a cap--Easier and quicker just to change it!
        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

          #5
          Re: Frustration With elactronics and Its tools!!!

          Yep. Wire an electrolytic capacitor in backwards and scrape the debris off the ceiling. Test equipment won't stop human error, I know I've done it myself once or twice.
          Willing to help but I'm no expert.

          Comment

            #6
            Re: Frustration With elactronics and Its tools!!!

            Originally posted by dick_barton View Post
            Yep. Wire an electrolytic capacitor in backwards and scrape the debris off the ceiling. Test equipment won't stop human error, I know I've done it myself once or twice.
            I remember doing that ..... it's kind of like putting a raw egg (uncovered) in a microwave and cooking it to fast. It's not pretty

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