Canon 400D CF pin broken, power down

If none of the suggested causes helps resolve the issue, then I suggest you bring it in for repair.

Please check the following things when the camera does not turn on.

Possible causes and how to handle them
1. The camera is not on

Turn on the camera. (Operation procedure varies between camera models. Please refer to the camera user guide supplied with your camera.)

2. The rechargeable battery is not fully charged.

Make sure the rechargeable battery is fully charged. If the battery has not been used for an extended period of time, or if it is being used for the first time, it may not be fully charged. In cases like this, fully charge the battery and then discharge it completely in the camera several times to bring the battery back to its normal performance.

The rechargeable battery's capacity diminishes the longer the battery is used. When the battery consumption becomes quicker, the battery life may be at its end. Replace the battery with a new one.

3. The battery terminals are dirty.

When camera does not operate with a brand-new alkaline battery (for cameras that use AA-size batteries) or with a fully charged rechargeable battery, the terminals may be dirty.
Polish the terminals with a dry cloth and make sure the terminals are clean. If the terminals are covered with oil from your skin or similar matter, this may cause poor contact and power may not be fully supplied to the camera.

Also, polish the battery charger terminals with a dry cloth before charging the battery. If the terminals are covered with oil from your skin or similar matter, this may cause poor contact and the battery may not be fully charged.

4. The batteries are not installed correctly (for cameras that use AA-size batteries)

For cameras that use AA-size batteries, multiple batteries are used in one camera. Make sure the direction of each battery matches the direction indicated on the camera. If any of the batteries are improperly inserted, the camera will not operate.

5. The battery cover or CF card (SD card) slot cover is not securely closed

Most cameras have a lock mechanism on the battery cover. The camera will not turn on if the battery cover is not locked or securely closed, or if the CF card (SD card) slot cover is not securely closed. Make sure these covers are securely closed.

If your camera does not operate after checking each of these things, or if there is any visible damage on your camera that could be the cause, please contact the nearest Service Center.

DO you have a manual for your unit?

None of this sounds good. I would start by checking the condition of the pins in the CF card slot. A small light and a loupe will help. If any of the pins are damaged, bent, or even missing, then the camera may have had a short circuit and blown the internal fuses. Neither the pins or the fuses are user replaceable.

you have two slots for memory cards .. one for XD and one for CF .. if you have trouble with one slot then you can try the other type card ..

if you are using a CF card or micro drive .. then look into the slot where they normally go .. look for bent or missing pins .. some CF memory cards don't have much of a "lead in taper" on their connector .. sometimes they will snag a pin and bend it, push it out of place or break it ... sometimes you can straighten it but replacing a broken pin is a big job .. usually the whole connector will be replaced if its sent in for repair .. if you have trouble with the CF slot you can instead use a XD memory card .. or visa versa .. the little LED flashlights are ideal for looking into the memory slot...
make sure you format any new memory cards in the camera before use .. that should pick up any problems and makes sure the card is compatable with the system ..

Are you using a typeII Cf card. You might try reformatting the card. Or go pick up a type II or III card, the type IV's seem to not do as good in the Canon..

Please check the following things when the camera does not turn on.

Possible causes and how to handle them
1. The camera is not on

Turn on the camera. (Operation procedure varies between camera models. Please refer to the camera user guide supplied with your camera.)


2. The rechargeable battery is not fully charged.

Make sure the rechargeable battery is fully charged. If the battery has not been used for an extended period of time, or if it is being used for the first time, it may not be fully charged. In cases like this, fully charge the battery and then discharge it completely in the camera several times to bring the battery back to its normal performance.



The rechargeable battery's capacity diminishes the longer the battery is used. When the battery consumption becomes quicker, the battery life may be at its end. Replace the battery with a new one.


3. The battery terminals are dirty.

When camera does not operate with a brand-new alkaline battery (for cameras that use AA-size batteries) or with a fully charged rechargeable battery, the terminals may be dirty.
Polish the terminals with a dry cloth and make sure the terminals are clean. If the terminals are covered with oil from your skin or similar matter, this may cause poor contact and power may not be fully supplied to the camera.

Also, polish the battery charger terminals with a dry cloth before charging the battery. If the terminals are covered with oil from your skin or similar matter, this may cause poor contact and the battery may not be fully charged.


4. The batteries are not installed correctly (for cameras that use AA-size batteries)

For cameras that use AA-size batteries, multiple batteries are used in one camera. Make sure the direction of each battery matches the direction indicated on the camera. If any of the batteries are improperly inserted, the camera will not operate.


5. The battery cover or CF card (SD card) slot cover is not securely closed

Most cameras have a lock mechanism on the battery cover. The camera will not turn on if the battery cover is not locked or securely closed, or if the CF card (SD card) slot cover is not securely closed. Make sure these covers are securely closed.



If your camera does not operate after checking each of these things, or if there is any visible damage on your camera that could be the cause, please contact the nearest Service Center.



Courtesy: http://photography-on-the.net/forum/showthread.php?t=151603

Hi,

Possible causes and how to handle them
1. The camera is not on

Turn on the camera. (Operation procedure varies between camera models. Please refer to the camera user guide supplied with your camera.)


2. The rechargeable battery is not fully charged.

Make sure the rechargeable battery is fully charged. If the battery has not been used for an extended period of time, or if it is being used for the first time, it may not be fully charged. In cases like this, fully charge the battery and then discharge it completely in the camera several times to bring the battery back to its normal performance.



The rechargeable battery's capacity diminishes the longer the battery is used. When the battery consumption becomes quicker, the battery life may be at its end. Replace the battery with a new one.


3. The battery terminals are dirty.

When camera does not operate with a brand-new alkaline battery (for cameras that use AA-size batteries) or with a fully charged rechargeable battery, the terminals may be dirty.
Polish the terminals with a dry cloth and make sure the terminals are clean. If the terminals are covered with oil from your skin or similar matter, this may cause poor contact and power may not be fully supplied to the camera.

Also, polish the battery charger terminals with a dry cloth before charging the battery. If the terminals are covered with oil from your skin or similar matter, this may cause poor contact and the battery may not be fully charged.


4. The batteries are not installed correctly (for cameras that use AA-size batteries)

For cameras that use AA-size batteries, multiple batteries are used in one camera. Make sure the direction of each battery matches the direction indicated on the camera. If any of the batteries are improperly inserted, the camera will not operate.


5. The battery cover or CF card (SD card) slot cover is not securely closed

Most cameras have a lock mechanism on the battery cover. The camera will not turn on if the battery cover is not locked or securely closed, or if the CF card (SD card) slot cover is not securely closed. Make sure these covers are securely closed.

TRy and reformat the CF card through the camera. Youll lose the pics for sure but you cant see them anyway. You can also check for bent pins in the CF slot. Sometimes if you shut down the camera in mid write to the card, itll mess up the cards FAT (file directory)

try reformatting the card. otherwise you either have a defect in the card that does not manifest itself while not in the camera, or you have a broken pin in the cf slot. look down it to see if all the pins are upright and none missing. next, you can try another cf card. if you get the same reading then its the camera.
reset the camera by removing the main battery and reinstalling it. if that does not work, then you will likely need to send the camera for repairs. if you have broken or missing pins, it will also occasion a repair shop visit.
good luck
mark

Try to use your CF card in another camera. It will let you know if your problem is with the camera or the CF.