component id fuse or not?

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  • Caleb
    Smokin IC's
    • Feb 2013
    • 645
    • USA
    #1

    component id fuse or not?

    Hi everyone, attempting to bring this flash back to life from what appears to have been a drowning. This component appears to be a 5 amp ceramic fuse, but I am puzzled as to its location. It doesn't appear anything in this location has bus lines to the battery. Before I slap a new fuse in there and attempt to let out the magic smoke I thought it would be prudent to verify its really a fuse and not a ceramic cap.
    It says 5.00 with a logo of C surrounding M followed by K.
    Attached Files
    Liberating magic smoke one part at a time
    Tags: None
    • gabiz_ro
      Senior Member
      • Mar 2011
      • 167
      • Romania
      #2
      Re: component id fuse or not?

      Looks like an crystal oscillator.
      Even from what I see from traces on PCB,2 small capacitor to ground,parallel 1M resistor,and connected to two pins of some MCU.

        Comment

        • fzabkar
          Badcaps Veteran
          • Mar 2009
          • 772
          • Australia
          #3
          Re: component id fuse or not?

          uPD78062 datasheet:


          Pins 79 and 80 are X1 and X2 -- crystal (main system clock, 5MHz).

          The CM logo belongs to muRata:

          Last edited by fzabkar; 02-16-2016, 02:54 PM. Reason: extra info

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 30979
              • Albion
              #4
              Re: component id fuse or not?

              that's a ceramic resonator in a MELF package.

              the cobalt looking stuff is a sign of battery leakage from zinc/carbon battery's
              you will probably find the slide-switch is screwed too.

                Comment

                • Caleb
                  Smokin IC's
                  • Feb 2013
                  • 645
                  • USA
                  #5
                  Re: component id fuse or not?

                  Ok glad I asked, learn something new everyday. It had lots of corrosion inside the pictures are after extensive cleaning. Still got nothing out of it after cleaning, it might be a lost cause as I just bought a working one off fleabay for 26$. Ill still keep it around for parts if I cant get it going again. Thanks for your insights
                  Liberating magic smoke one part at a time

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