Question about Canon EOS 40D Digital Camera

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Suddenly the camera will not turn on. It worked fine only minutes ago. Battery is charged, installed correctly, and I have tried other charged batteries. The CF card is installed properly and the door is closed.

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  • c1obrien Oct 02, 2009

    Thanks! I'll check it out!

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  • Canon Master
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U need to verify the battery is indeed good, just because it is charged doesn't mean it is any good, this is the common cause of this problem, get a volt meter and measure the battery voltage, it should be approx 3.90 volts DC scale of meter, if u are unsure any radio shack will test it for you free of charge, also have the charger checked they do fail, if both battery and charger check ok the camera has failed, this would be in the micro circuit that boots the camera on, there are no parts that can be serviced on this camera by the consumer, u can't even get them apart with special minature tools, if the camera itself is the problem call Canon USA (I assume u are in USA) and ask is they offer an exchange program, most camera makers do, if not then you will need to inquire into the nearest factory authorized repair center.

Posted on Oct 02, 2009

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Posted on Jan 02, 2017

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http://camerarepair.blogspot.com/2007/11/simple-fix-for-dead-cameras-that-wont.html

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NO Power


Possible causes Solutions
/ Corrective Actions
The power does not
turn on.
The ViviCam 6300
suddenly powers down.
The image is not
captured when the
shutter button is
pressed.
The flash does not fire.
Continuous shooting
is not possible.
Cannot transfer files
over a USB connection.
* Load new or fully charged battery.
* Load the battery in the correct direction.
* Close the battery cover correctly.
* Properly connect the AC power
adapter.
* Set the option of Auto Shut Down to Off.
* Turn the power back on or charge the
battery.
* Rotate the mode dial to A , P , SCENE
, Tv , Av or M.
*
Transfer the desired files to your
computer and then delete unnecessary
files, or use a different memory card.
* Select a different flash mode.
* Select [Single] in the capture mode .
* Insert a new SD memory card.
* Check all connections.
* Install the USB driver on your computer.
* Turn on the ViviCam 6300.
* The battery has run out.
* The battery is not oriented correctly.
* The battery cover is not closed properly.
* The AC power adapter (optional)
is disconnected.
* The function of Auto Shut Down in

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