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Help ID'ing surface mount component

Discussion in 'Electronic Repair' started by Dan, May 24, 2006.

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  1. Dan

    Dan Guest

    Trying to repair my logitech mouse. Has a surface mount component I
    think may be the culprit, marked only 73D. Can someone help my ID this
    component? I'm thinking it's a resistor, but I have no idea what value.


  2. Ray L. Volts

    Ray L. Volts Guest

    more info on SMD resistor codes:

    From this table, we get:
    1% 73 = value 562; D = multiplier 1000 = 562000 (562k) ohm

    Now, what symptom are you experiencing that makes u think this is the faulty
  3. Dan

    Dan Guest

    Thanks Ray, great resource! I tried searching but was not able to find
    anything like that. As far as what's wrong with the mouse, well it's a
    rather unusual failure. It's a cordless mouse, which my 3 year old
    daughter tossed across the room, bouncing it off a (cast iron) wood
    burning stove & onto the brick hearth. Immediately after this, the
    scroll wheel ceased to work, so I opened the mouse & discovered 2
    surface mount capacitors which each had one end broken loose from the
    trace. I re-soldered these, but unfortunately in the process of
    disassembly I over estimated the degree to which one of the
    board-soldered battery terminals could be flexed, and I pulled a bit of
    trace away from the resistor I posted about. Patched it up (I thought)
    but now NOTHING works, no scroll & no pointer motion. Oddly, the LED on
    the bottom appears to operate as it always did, flashing in response to
    motion, etc. Tried rebooting, pressing the communications buttons on
    the mouse bottom & on the USB receiver, still nogo. I'm thinking I may
    have fractured the resistor, so I thought I'd try inserting a 1/4 watt
    equivalent & see what happens.

    Anyway, thanks again for your reply.

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