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how can you tell if a ceramic fuse is blown??(cardboard is covering glass)

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  • how can you tell if a ceramic fuse is blown??(cardboard is covering glass)

    okay this is for my computer monitor and so i put it in "off topic"

    its a T4AH/250V and i think its blown. how can i tell if it is? it is covered by like a paper/cardboard thing.
    my wish list:
    http://i4.photobucket.com/albums/y13...tSignature.jpg

  • #2
    If you have a multimeter you can always set it to the continuity setting and see if it has continuity. If it does, it's not blown. If it doesn't it's blown

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    • #3
      naw i dont have one of those. i guess its time for radio shack.

      if the led light on the power button is all that is funtioning on the monitor is that becuase of the fuse(possibly blown) or is it something else?
      my wish list:
      http://i4.photobucket.com/albums/y13...tSignature.jpg

      Comment


      • #4
        Use any audio input...your pc or your pc amps will do.

        Turn the volume high enough such that you hear a hum whenever you touch the input...NOT THE GROUND.

        Now place the fuse so that one end touch the audio input, then touch the other end with your finger to hear the hum.

        If you hear the hum then you know you got continuity, i know it work cause I just tried it

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        • #5
          Originally posted by Chris31
          Use any audio input...your pc or your pc amps will do.

          Turn the volume high enough such that you hear a hum whenever you touch the input...NOT THE GROUND.

          Now place the fuse so that one end touch the audio input, then touch the other end with your finger to hear the hum.

          If you hear the hum then you know you got continuity, i know it work cause I just tried it
          Wow, now that is clever!
          AMD XP 2600+/512MB RAM/120GB hard drive
          Opus 150W/DVD/GPS/7" Lilliput TS/802.11g/Bluetooth
          Installed.


          -GPSSecure- - GPS Tracking
          -AltTabber2.2.2- - Handy touchscreen utility.

          Comment


          • #6
            okay so if i read this right,

            audio input(mic? just where ever you plug the mic in),
            turn the system volume up, or the speakers?(probaly the system but not sure)
            do you feel the hum or would you put your ear to i guess your hand that is touching the fuse?
            my wish list:
            http://i4.photobucket.com/albums/y13...tSignature.jpg

            Comment


            • #7
              Originally posted by xBrady
              Wow, now that is clever!
              Infact I only thought of it when I saw this thread while testing my PC speaker inputs with my finger

              Thanks to lominono for asking the qs at the right time

              Comment


              • #8
                Originally posted by lominono
                okay so if i read this right,

                audio input(mic? just where ever you plug the mic in),
                turn the system volume up, or the speakers?(probaly the system but not sure)
                do you feel the hum or would you put your ear to i guess your hand that is touching the fuse?
                Lol...someone help this guy out, Im too busy to explain/draw right now.

                Comment


                • #9
                  Originally posted by Chris31
                  Lol...someone help this guy out, Im too busy to explain/draw right now.
                  The $15 multimeter might be best in this case
                  AMD XP 2600+/512MB RAM/120GB hard drive
                  Opus 150W/DVD/GPS/7" Lilliput TS/802.11g/Bluetooth
                  Installed.


                  -GPSSecure- - GPS Tracking
                  -AltTabber2.2.2- - Handy touchscreen utility.

                  Comment


                  • #10
                    My advice is to just buy a multimeter... Wal-mart has them for 10 bucks (automotive electronics section, where they sell the headlight bulbs and fuses and stuff). Any type of geek has to have a multimeter, comes in very handy.
                    Zen Fat Loss

                    Comment


                    • #11
                      Originally posted by xBrady
                      Wow, now that is clever!
                      and it can make the fuse glow, it looks cool
                      Is this where the witty comment goes?
                      97 Black pearl Mazda Miata MX-5 Carpc V2? maybee..

                      Comment


                      • #12
                        Originally posted by Stealth97
                        and it can make the fuse glow, it looks cool
                        And why would it glow?

                        Comment


                        • #13
                          Originally posted by Chris31
                          And why would it glow?
                          My guess is resistance and heat have something to do with it.

                          I had the fuses in my crossovers glowing and emitting music when I had my stereo up way to loud.
                          Is this where the witty comment goes?
                          97 Black pearl Mazda Miata MX-5 Carpc V2? maybee..

                          Comment


                          • #14
                            Originally posted by Stealth97
                            My guess is resistance and heat have something to do with it.

                            I had the fuses in my crossovers glowing and emitting music when I had my stereo up way to loud.
                            Oh thats really cool, I didnt know fuse can make some really nice music too.

                            Now dont talk to me

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                            • #15
                              I really did not want to talk to you anyway

                              I fuse has an element somewhat similar to a light bulb or a voice coil... So why not have fun lighting it up and playing music with it, even though it would be horribly ineficient, its still fun. this was a very low amperage, glass cannister fuse BTW
                              Is this where the witty comment goes?
                              97 Black pearl Mazda Miata MX-5 Carpc V2? maybee..

                              Comment

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