Question about Canon PowerShot A540 Digital Camera

2 Answers

Lens cover only partially opens

When I power up camera the lens extends but the cover only opens up a fraction. Tried replacing batteries but no luck. Camera was working fine yesterday. Suggestions

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  • joshuasbell Feb 17, 2009

    Same problem here. Lens pops out, but cover only partially opens. This happened while spelunking so I am guess that maybe there is cave dust / grit stuck in there somewhere. I have tried blowing it out, but with no luck.

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2 Answers

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  • Expert
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There is a very very easy way to fix this problem..

This can happen if...
1.) If the battery dies when the camera lens is open (and you close it manually, or sometimes, even if you dont.)
2.) If you used a AC adapter with too much voltage or not enough. (this can happen even if you used the correct voltage, refrain from using AC adapters at all)
... all together its ethier a voltage or camera lens problem...

TIPS:
1.)NEVER PUSH THE LENS IN AFTER CAMERA DIES, BUY A NEW BATTERY IMMEDIATLY AND TURN IT BACK ON, CLOSING THE LENS!

2.)NEVER USE AN AC ADAPTER, USE A RECHARGEABLE BATTERY OR A REGULAR BATTERY!

..to fix this...

Do as i say..

1.) Remove battery
2.) Remove front plate (screw driver may be needed)
3.) Check all gears, make sure they are correctly fitted in place)
4.) Move the gear manually to make the lens come out.
5.) keep it out, put the front plate back together.
6.) reinsert the battery, turn it on.


or...
1.) Remove the battery.
2.) Wait about 6-8 hours.
3.) Reinsert the battery.

or...
1.) Remove the battery.
2.) Try hooking it up through AC adapter, put correct voltage.
3.) Try turning it on.
4.) Remove AC adapter, reinsert battery.
5.) Turn it on.



Hopefully all this information helped,

Posted on Jul 10, 2008

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This blog post outlines repair procedures for stuck lens covers. An A400 is used as an example. But it should be similar for the A430:

http://camerarepair.blogspot.com/2007/11/repair-of-stuck-lens-covers.html

Posted on Mar 31, 2008

  • CameraR
    CameraR Mar 31, 2008

    Oops, I meant similar for an A540.

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Possibly

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2. A broken piece within the camera is interfering

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Please check this out if you are comfortable doing so and let me know what comes of it

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Fixing a Lens Error on a Digital Camera

This has to be THE most common failure mode for a digital camera. Some common error messages that might show up on the LCD's of cameras with this problem include “E18 lens error”, or “lens error, restart camera”. Some cameras might show nothing at all, but merely make a beeping noise as the lens goes out, then in, then the camera shuts off. Sometimes the lens won't even move.
The problem is actually quite common throughout all camera brands. Usually it's sand or grit interfering with the lens extension mechanism. Or the camera's been dropped with the lens extended. Or the camera has been powered on, but the lens had been blocked preventing its extension. Or the battery ran down with the lens extended. Believe it or not, one BIG contributor to lens errors is using a camera case. Sand, gunk, case fibers, etc... accumulate at the bottom of the case. These materials love to cling to the camera by electrostatic build-up from the camera rubbing against the side of the case (especially those cases with soft fibrous intreriors). Once these materials work their way into the lens mechanism, that's all she wrote. I have many Canon's, and NEVER use a case for this very reason.
A camera owner that suffers this problem may have no recourse for having the camera repaired. Many camera makers will not honor repairing this problem under warranty as they claim it is due to impact damage to the camera, or sand or debris getting into the lens gearing mechanism (neither of which is covered under warranty). The quoted repair cost is usually close to or more than what the camera is actually worth.
Fortunately, about half the cameras that suffer this failure can easily be fixed by one of the following methods. None of these methods involve opening the camera, although some have potential to cause other damage to the camera if excessively done. If the camera is still under warranty, before trying any of these, please please first contact your camera's maker to see if they'll cover the repair, or to determine how much they'll charge for the repair. Who knows, you might get lucky. But if they quote you a number that's higher than the value of your camera, you may want to consider the following methods.
The methods are listed in the order of risk of damaging your camera. Thus make sure you try them in the listed order. And remember, these fixes (especially #6 and 7) should only be considered for a camera that's out of warranty, who's cost of repair would be excessive, and would otherwise be considered for disposal if unrepaired:
Fix #1: Remove the batteries from the camera, wait a few minutes. Put a fresh set of batteries back in (preferably rechargeable NiMH 2500mah or better) and turn the camera on. If that didn't work, try pressing and holding the Function or OK button while turning the camera on.
Fix #2: Remove the batteries, then remove the memory card. Then install new batteries, and turn on the camera. If you get an Error E30, it means you don't have a memory card installed, so turn it off, slip in the memory card and turn it on one last time.
Fix #3: Insert the cameras Audio/Video (AV) cable, and turn the camera on. Inserting this cable ensures that the camera's LCD screen remains off during the start process. Thus extra battery power is available to the camera's lens motor during startup. This extra power can be useful in overcoming grit or sand particals that may be jamming the lens. If the AV cable doesn't fix the lens error by itself, consider keeping this cable installed while trying fixes 4, 5, and 7 as a means to provide extra help to these fixes. But note that I DON'T recommend keeping the cable installed during Fix 6 as you may damage the AV port while tapping the camera. Reinsert the cable only AFTER tapping the camera.
Fix #4: Place the camera flat on its back on a table, pointed at the ceiling. Press and hold the shutter button down, and at the same time press the power-on button. The idea is that the camera will try to autofocus while the lens is extending, hopefully seating the lens barrel guide pins in their slots.
Fix #5: Blow compressed air in the gaps around the lens barrels with the idea of blowing out any sand or grit that may be in there jamming the lens. Other variations include blowing with a hair dryer in “no heat” setting, or sucking the gaps with a vacuum (careful with this one).
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Fix #6: Repeatedly tap the padded/rubber usb cover on a hard surface with the intent of dislodging any particles that may be jamming the lens. Other variations include hitting a side of the camera against the palm of your hand. A lot of people have reported success with this method. HOWEVER, there is also some potential for damaging or dislodging internal components with this method, such as unseating ribbon cables, or cracking LCD screens.
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http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html

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http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html

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http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html

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Try this only as a last resort after blowing lots of compressed air in there to clean the mechanism. Also with the lens barrel extended, tap it with a pencil (a grain of sand is usually the culprit, this may help to dislodge it). If that doesn't work, it may be necessary to go in there. The following repair will expire your warranty, so be forewarned.

This blog post outlines repair procedures for stuck lens covers. An A400 is used as an example. But for the A620, you might want to extend your zoom all the way out before removing the camera's batteries. Also you'll be applying the ring loosening rubbing alcohol around the barrel's perimeter instead of the front as shown in the procedures.:

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Good luck, and remember to do this only as a very last resort. Oh, and if you do decide to try the repair, please post how it went.

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