694d dead after recap?here is the cure

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  • kc8adu
    Super Moderator
    • Nov 2003
    • 8832
    • U.S.A!

    #1

    694d dead after recap?here is the cure

    this board was sent to me by topcat as dead after recap.
    so i dug in to it and here is what i found
    the vrm controller chip a mosfet and a 10 ohm resistor as seen in pic
    btw the sc1182csw is pin compatible with the 1164 these boards came with.
    this board works fine now.
    i guess it wont mind a leaded resistor since i dont have any smt that size.

    Attached Files
    Last edited by willawake; 05-13-2005, 12:03 AM.
  • bushytails
    Moderator
    • Dec 2004
    • 217

    #2
    *takes notes*. only dead-after-recap I've had to fix was a board I recieved DOA, and a quick inspection showed a few SMT caps were broken off. bent the leads sideways on some radial tantalums and soldered them in their place. haven't had to dig into VRM circuitry yet.

    --Randy

    Comment

    • Topcat
      The Boss Stooge
      • Oct 2003
      • 16956
      • United States

      #3
      I've repaired a lot of SMT's broken off, mainly on VP6's by the CPU sockets when someone carelessly removed a heatsink. That one obviously got by me

      Glad ya got some use out of it, I was gonna pitch it in the trash after I stripped it down. Glad I didn't.
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      Comment

      • AK0R
        Badcaps Veteran
        • Mar 2005
        • 204

        #4
        Is it just the lighting in the picture, or is that MOSFET really that bad? It certainly looks like it's had a little extra heat-treating. The solder connection for the MOSFET case to the board doesn't look all that good, either.

        Comment

        • kc8adu
          Super Moderator
          • Nov 2003
          • 8832
          • U.S.A!

          #5
          its just the light.
          that is an after repair pic.
          btw the dead giveaway was that vrm being at 0.0 v

          Comment

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