Question about Nikon D200 Body Only Digital Camera

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Exposure button not working

This maybe a repeat message before I signed up for premium advise service. I have a Nikon D200 ( for a couple of year) While shooting a football game I filled up my memory card so I changed it with another 4 gig Ultra SanDisk memory card. Suddenly I could no longer shoot exposures. and if I tried to look at the card the screen read "This card cannot be used" and there were the letters CHA flashing on the control panel. I tried formatting the card, which worked, but the problem was still there. I changed the card again, and again, and again. I replaced the battery twice. I reverted custom setting back to factory defaults and then checked every button, knob and lever to be sure there wasn't anything "between" settings. I also changed lens twice. I have about 8 scandisk cards, all 1, 2, or 4 gig. I've been using these for years. They were all empty and ready to use. I have five Nikon batteries for the D200 and they are all charged and read full when you put the battery in the camers. I could find any listing in the manual for these letters (CHA) or for this problem.

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Re: exposure button not working

Have you done the firmware update? If not the update is available here: CLICK HERE FOR MACINTOSH or CLICK HERE FOR PC.

If that didn't solve your issue, you may have to go to an authorized Nikon dealer to have the camera reset. The internal battery cannot be serviced by untrained persons. I would also suggest that going forward, you carry your camera inside your coat when you're outside in cold weather, since electronics are easily damaged (especially software) by frost and / or water vapor which can very easily damage parts of your camera (hardware and software) in any weather.

Posted on Dec 19, 2007

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Exposure button no longer working.

When you insert the card and get the CHA Flashing error, remove the card and format it. Reinsert it again.
Should work.

Also, if it doesn't work, there is a strong possibility there's a broken or bent pin in the memory card section of your camera. Just look closely and inspect that section to see if there's a broken or a bent pin.
This happens when you forcibly insert the card the wrong way. This has happened to a lot of users.

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All my exposures are dark experienced this once before and it was some setting that was at either 1 2 or 1 3 I can 39 t recall the setting any ideas as to what it would be Added by avatarpatty jenks 8...

Did you check the exposure compensation setting? The button is on the top right of your camera and is labeled with a "+/-" symbol. Press the button and use the main command dial to zero the setting.

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