Cycling Equipment · Public discussion

Sigma BC800 computer. How do I open it?

Started by dicko · · Last activity · 7 posts · 1,296 views

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Cycling Equipment
Published
6 April 2008
Last activity
7 April 2008
Original author
dicko
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7
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  1. I have a rather old BC800 Sigma Sport bike computer. Through the
    years it's had its share of dust and rain and sweat and all kinds of
    stuff poured on it. Now the buttons are gummed up. Press them in and
    they dont pop back out. You have to physically pull them out.

    What I want to do is open the case and give the buttons a good
    cleaning.

    I've tried sliding a putty knife in the crack around the case and
    twisted, but I cant budge the thing. I suspect it was either
    ultrasonically welded together or it just snaps together with so much
    force, nothing will pry it apart.

    So, has anyone ever successfully opened one of these things? Or should
    I just forget it and buy a new computer?

    -dickm

  2. dicko thought the rest of the world was interested to know that

    Quoted message said:

    I have a rather old BC800 Sigma Sport bike computer. Through the
    years it's had its share of dust and rain and sweat and all kinds of
    stuff poured on it. Now the buttons are gummed up. Press them in and
    they dont pop back out. You have to physically pull them out.

    What I want to do is open the case and give the buttons a good
    cleaning.

    I've tried sliding a putty knife in the crack around the case and
    twisted, but I cant budge the thing. I suspect it was either
    ultrasonically welded together or it just snaps together with so much
    force, nothing will pry it apart.

    So, has anyone ever successfully opened one of these things? Or should
    I just forget it and buy a new computer?

    -dickm

    forget and buy a new one.

    you will never get it (nearly) watertight...

    Martin

  3. dicko said:

    I have a rather old BC800 Sigma Sport bike computer. Through the
    years it's had its share of dust and rain and sweat and all kinds of
    stuff poured on it. Now the buttons are gummed up. Press them in and
    they dont pop back out. You have to physically pull them out.

    More than one button?? Must be old. It's not popping apart any time
    soon, but using your wife's toothbrush and some dish soap, you should
    be able to clean the gunk out. It *is* waterproof, right?

  4. NASHBAR NASHBAR has a yawwwwwwwwwwwwwwwn sale on

    got any elctircla cleaner like ah Jiffy ? spray that stuff has citric
    acid and silicone, tothbrush edges and presto
    DEAD BC800
    works everytime
    seriously electric contact cleaner prob from RSchuck is a WELCOME SHOP
    ADDITON
    prob with gtaking that stuff apart gotta askurself
    was it meant tube? well wazit?
    anyway ura supposed to eyeball the equipment, removing tar and added
    buildup BEFORE not after.
    I have one outta the trash. no kidding. doano if it works or not but
    there it sits in the elec box.
    I'll put it on EBay und yawl can bid onit

  5. dicko said:

    So, has anyone ever successfully opened one of these things? Or should
    I just forget it and buy a new computer?

    I have a later model that's still new, so never had to try. From the looks
    of things, it's either securely clipped in (one way only), or it's factory
    glued in place.

    Either way, owing to the trouble you have to go to take it apart, then
    reassemble to the point that it's going to be useful, will probably not be
    worth the replacement cost.

    I know it's taking the easy way out, but looking at economics first for
    repairs has been beaten into me in recent years: Toss it and buy a new one.
    --
    Linux Registered User # 302622
    <http://counter.li.org>

  6. DEAR LINUX USER,

    yeah but if ura gonna toss it
    WHY NOT TRY TO FIX IT?

  7. TOADY NASHBAR OFFERS FREEEEEEEEEEEEEEEEE SHIPPING

    and a $10 cyclometer

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