Help! Rebel 300D won't turn on

Discussion in 'Digital SLR' started by madhobbit.geo, May 16, 2008.

  1. Hey everyone,

    I'm in a bit of a bind, and hope someone can help me out. I just
    turned my faithful Canon Digital Rebel (the original 300D) on...except
    it didn't turn on. I'm planning to take pictures at a big family party
    in...about 15 hours, so I'm looking for advice...hopefully someone
    else has seen this before and has a suggestion.

    The details:
    - When I turn the power switch to "On", nothing at all happens. No
    lights, nothing on the LCD.
    - It worked perfectly a week ago, and has been sitting in my camera
    bag since, completely undisturbed.
    - The camera's never given me any trouble in the past whatsoever; it's
    always worked perfectly.
    - I've tried it with two different batteries, both freshly charged. A
    voltmeter reads the batteries as 8.0v and 8.4v.
    - I've tried it with and without the battery grip.
    - I've tried it with and without a CF card installed, as well as with
    and without a lens.
    - The CF door is closed properly, and there doesn't appear to be any
    damage to the interlock.

    I'll be taking it down to the local camera shop tomorrow to see if
    they have any ideas (or can try a new battery, or something), and I
    may be able to borrow a camera from a friend in time for the party,
    but if anyone has any suggestions, I'd be greatly appreciative!

    (If it's given up the ghost completely, it's not the end of the world
    -- might be a good excuse to upgrade. But the timing sucks.)

    - Darryl
    madhobbit.geo, May 16, 2008
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  2. madhobbit.geo

    OldBoy Guest

    Page 33 of the manual :)
    Replace the CR2016 lithium battery
    OldBoy, May 16, 2008
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  3. madhobbit.geo

    Focus Guest

    You've got to be kidding me!
    If you've got juice in the main battery, why doesn't it warn you for that?
    Seems as useful as the "smart teleconverter" button (I would call it:
    "stupid digital zoom") on the Sony A350. If you press it while shooting RAW
    or with the OVF on, you get a message: "invalid operation."
    With these things in mind, my hat goes of for Nikon with all their help
    screens. Even the "technical" D300 has help screens for almost every option.
    Saves you the trouble of dragging a 450 page manual with you everywhere ;-)
    Focus, May 16, 2008
  4. madhobbit.geo

    OldBoy Guest

    Up to the point the CR2016 has gone (every 2 tot 3 years or so).
    It's the same as with the boot process of a PC, no CR2016 power, no boot.
    OldBoy, May 16, 2008
  5. madhobbit.geo

    N Guest

    Not in my experience with PCs. MB battery goes flat and you lose the time,
    that's all.
    N, May 16, 2008
  6. I have booted a lot of PCs with flat batteries. No problems
    there, just an unset hardware clock ...

    Wolfgang Weisselberg, May 16, 2008
  7. madhobbit.geo

    Yoshi Guest

    It's part of Canon's planned obsolesence program.
    Yoshi, May 16, 2008
  8. Hmm, that seems plausible. The camera's the right age. I haven't had
    the "C bC" in the LCD panel (at least, not that I've noticed), but
    that doesn't mean anything.

    I didn't check the manual, but I did check Canon's support pages for
    "Camera will not power on or will not power on correctly", and their
    tips are:
    - Clean the battery contacts
    - Try a new battery
    - Send the camera for servicing

    No mention of the CR2016 :)

    I actually left the camera overnight, stuck a battery back in it this
    morning, and it now works perfectly. Of course, I don't trust it at -
    all- anymore. I'll see if I can replace the battery today, and if not,
    I'll cross my fingers and hope (and try to borrow a backup camera).

    Many thanks!

    - Darryl
    madhobbit.geo, May 16, 2008
  9. madhobbit.geo

    Walter Banks Guest

    You probably achieved a full reset. It still might be a good idea to
    check or replace the CR2016. This might be being used to retain
    some RAM needed for quick start up. I believe that the
    Rebel 300D is running Windows CE inside. The 350D is using an
    ARM processor and 300D may be as well.

    Walter Banks, May 16, 2008
  10. Why you think that the camera is running Windows CE?

    Wolfgang Weisselberg, May 16, 2008
  11. Well, I figured out part of the problem, anyway: I didn't know that
    the battery cover needed to be closed for the camera to function. I
    got the battery grip with the camera, and almost never take it off. So
    during some of my testing, I didn't have the battery door on the
    camera, which means it wouldn't have worked anyway.

    I'm beginning to suspect that the battery grip wasn't mounted right,
    so it wasn't engaging the battery cover interlock. The camera seems to
    be working fine now. I bought a replacement CR2016 anyway, because it
    was only $1.50.

    Thanks to all who responded!

    - Darryl
    madhobbit.geo, May 17, 2008
  12. madhobbit.geo

    Pete D Guest

    No way no how they would use WinCE, just would not need the features offered
    by CE, mind you in my GPS/SATNAV unit CE is excellent.
    Pete D, May 17, 2008
  13. madhobbit.geo

    Walter Banks Guest

    The 350D that I have is and most of the Canon camera's
    are running Windows CE. I don't have first hand experience
    with the 300D.

    Walter Banks, May 17, 2008
  14. and when the battery fails you can get to the on camera "Help" screen how
    exactly ??
    Atheist Chaplain, May 17, 2008
  15. madhobbit.geo

    Pat Guest

    I don't know what version of Win it's running, but yes, it does run
    some version of Win. That's how the hacked it and gave it more
    functionality. IIRC, there is some info on the "Russian Operating
    System" that discussed the operating systym.
    Pat, May 17, 2008
  16. madhobbit.geo

    Ray Fischer Guest

    And you assume that it's not possible to hack anything else?
    Ray Fischer, May 18, 2008
  17. Aha. And you know this because the WinCE logo shows on every
    boot? Or because you can switch to the task manager by
    pressing all buttons simultaneously and there it says WinCD?
    Or because you actually programmed the 350D for Canon?

    Wolfgang Weisselberg, May 19, 2008
  18. What an extraordinarily stupid and ignorant design decision! And a
    very good reason to avoid cameras made by Canon.
    Chris Malcolm, May 19, 2008
  19. madhobbit.geo

    Walter Banks Guest

    Why would that be? I am not baiting you this is a serious question.

    For a camera company in the photography business licensing
    an OS in a product that needs to be file compatible with PC's
    and MAC's that their customers use makes sense.

    There are lots of supported software tools out there to enable
    Window's development. From what I can see with most
    digital camera's bugs are application design and not OS related.

    Walter Banks, May 19, 2008
  20. madhobbit.geo

    Matt Ion Guest

    If memory serves, when I was researching the "Russian hack" for my 300D,
    there was a discussion on a board somewhere that suggested the 10D and
    300D actually ran an embedded form of DOS (Datalight's ROM-DOS,
    probably, same as they used in many of their other digital cameras).

    I've been unable to find that exact thread again...
    Matt Ion, May 19, 2008
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