Nikon D70 digital cameraWhen our memory cards are inserted ''CHA'' comes up on the top sceen and ''memory card cannot be read'' on the larger display screen. Why is this? We have used these cards for 1-3 years and had no previous problems.
First read:
http://www.vandyll.net/?p=499
Then read how, with pics:
http://www.stephanmantler.com/wordpress/d70s-camera-repair/en/
Careful now....
One of the pins in your slot is bent. I used a small screwdrive to straitened the pin and the camera works fine. It took me 4 minutes to resolve.
That's a Repair error code, It has to tested by a repair shop, To find out whats bad, Could be many things, Like Cf card socket bad, or aperture control unit bad, Circuit board connectors, Ect. TC
I have this problem and haven't had my Nikon for a year yet. Nikon needs to figure this out because when looking this up it seems to be a Nikon only problem.
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I have the same problem with my Nikon D70. Did you get yours repaired?
I'm having the same problem with my D70s, where cards I've used for awhile (Sandisk Extreme IV cards) are having problems, either with teh CHA code or a FOR code. I reformat the cards, but still have problems.
Is this a software problem in the camera or a hardware problem with the camera?
I've had the camera for 3 1/2 years and have taken about 25,000 pictures with it.
I had the same problem with my D70 and was told I was looking at $300 to repair (not worth it) so I took it apart. If your mechanically inclined it is relatively easy.
First (making certain the battery is removed) I took a micro file and lightly ran it on both sides of the CF pins taking care not to bend any... the hardest part... just be delicate.
Second, I removed the bottom of the camera (8 small screws) and the back (2 small screws on each side). Carefully remove the connector for the back from the PCB on the bottom.
Third, remove the connector for the CF socket, also on the bottom PCB and carefully roll it down into the enclosure. There are (2) small screw that hold the CF socket in (be careful not to loose the brass seperator plate behind the bracket).
Finally inspect the back of the CF socket for and pins that may have been pushed out as a result of CF card insertion. Mine had (2)... I used a tweezer tip to push them back into place. Be certain to insure that they are straight in the socket and test a few times by slowly inserting a CF card.
Now slowly reverse the assembly and test.
The repair is about $300, the camera is worth about $300... if it's not working you have little to lose. Mine has been working for about a month now.
I'm having the same issue on two of the cameras at the newspaper where I work. I might try skisup's suggestion on one of them.
One solution that worked for me was to take out the Compact Flash Card and use a Q-tip with alcohol on it to get the alcohol into the contact point. Then I used canned air to dry the card contacts. I then pushed the Compact Flash in and out 5-6 times to clean the camera's contacts and POOF it worked. No more CHR or FOR to deal with. Also, I have a 32 gig compact flash and it is working just fine in the camera.
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