Question about Canon PowerShot A640 Digital Camera
I have Flash turned on and when I try to take a picture, all I get is a orange light and the flash icon blinks on the screen.
I can't believe I just managed to fix exactly this problem on my camera. Warning - the process hurt somewhat, but it did work.
I dismantled the case very carefully: After taking the shiny grey cover on the screen end off (3 screws, noting carefully where each screw was), I took the top cover off.
That was a case of unscrewing three screws at the bottom of the battery compartment (I left them in place, as it looked tricky to locate them again, subsequently working with the camera upside down), then gently prising the top off - there is an internal clip just next to the visual viewfinder, which you have to wiggle a bit - just use a fingernail to prise it open. The top lifts off - dangling on with its cable.
Here is the unpleasant bit. Quite accidentally, I shorted the flash capacitor, by touching its circuit board - and got the most surprising electric shock.
I looked around to see if there was anything else I would be able to do, felt there wasn't, so I put it all back together, in the hopes that it might have fixed my problem.
Hey presto, I now have a working camera with working flash!
Posted on Dec 20, 2008
I read the posts by weisendesign and johnathan222 and thought that before I took my camera apart in hopes of fixing the flash I would try giving it a solid tap on my palm in hops of knocking things back in place. It is almost 4 years old and not much good to me with out the flash so I thought "Why not." Two solid taps and the orange light came on when it should and two more and the flash worked. Thank you for the info.
Posted on Nov 27, 2010
I had the same problem and was not interested in paying more than a new camera would cost. i did what jonathan222 did above (but without the shocking part) and now my flash works. i didn't even do much of anything besides taking the side and top off and poking around.
one quick edit to his post: after loosening the screws inside the battery compartment (i agree, don't take them completely out) you have to remove one screw in the AV/OUT compartment in order to release the top piece.
good luck, i hope this works for somebody else.
Posted on Feb 09, 2010
Hi there, You have 1 of 2 problems, or maybe both. The secondary fuse may be blown, or the capacitor in the flash unit is not taking a charge any more. In any case, to replace the flash unit would cost about $120.00 if you sent it to canon.
Posted on Nov 23, 2008
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