An expert who has achieved level 2 by getting 100 points
An expert that got 5 achievements.
An expert whose answer got voted for 20 times.
An expert who has answered 20 questions.
Re: D40 will not power up
When a charged battery is installed, the card access led on the back of the camera should blink once. If it doesnt, try resetting the camera with the small microswitch on the bottom of the camera body (opposite side from battery compartment). Failing those, have a Nikon shop look at it.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The Nikon D40 uses the EN-EL9 7.4 Volt Li-ion Battery. You should be able to read 7.4 V DC between the (+) & (-) terminals of the battery after it has been in the charger for several hours. If it does not, it indicates a bad battery, charger or both. There should over 7.4 V DC on the terminals of the charger if there isn't, it suggests a bad charger. If the battery voltage is OK, make sure it is inserted correctly. If still having trouble, it may be related to the camera power switch or internal circuitry. This will require returning to Nikon for repair. Good luck!
That shouldn't cause the camera power off unless there was a short. I'm thinking the camera shorted out which is strange. Did you try to take the part out with tweezers (while the camera was on)? That would probably cause a short. Anyhow, remove the part while the camera is off and with the batteries removed, then try to power it on. If
all fails then the camera has a short and the board will need to be replaced.
Your problem may be due to weak/worn out batteries or corrosion on the
battery contacts inside the camera
which can prevent the full power of the batteries from flowing into the
camera. Try this free fix before you do anything else: remove the
batteries and wipe the camera contacts firmly with
a dry cloth (heavy corrosion may require cleaning with a wire brush,
steel wool, or sandpaper). Remove any residue that may have fallen
into the battery compartment during cleaning, then wipe both ends of
the batteries and place them back in the camera. This cleaning clears
the problem about 90% of the time. If it doesn't work for you, chances
are that your batteries need to be replaced because they're just too
worn to properly power the camera.
And then, of course, there's the possibility that your camera may have
a problem that requires professional repair.
Be aware of using your Flash because it has limit syncronization capability. if your flash synchronization limited only to 250 speed, and you make it 500, the images may turn half lighted and dark. X synchronization is important to know.
the best thing to do would be to press the 2 green dots together to do a master reset on the camera. 1st green dot would be just beside the shutter and the other would be on the left of the lcd. press and hold them both for about 10 secs