04-19-2014 09:40 PM
Does it use a dedicated battery? If so are the batteries as old as the camera? If so they might be the problem. If it's like my S1 IS was which used AA's that's less likely the problem unless you're using very old rechargables. If it's not a battery problem it's time to send it for recycling & get something newer.
04-20-2014 12:51 AM
If you have the AC adaptor the PS 700 you can try that and eliminate any battery causes. My guess from experience working on those older Powershot models is the shutter circuit board underneath the shutter button is either defective or because of use been pushed to far away from the shutter button to activate the switch on the board. The fix for it is easy if it just moved away but taking the camera apart and putting it back together is not for everyone.
Does it work using the self timer option? If so then what I said above is the problem, the shutter board is faulty or it has shifted away from the shutter button.
The cost to have someone repair is would be more than the camera is worth as you can get working used S2's very cheap.
04-21-2014 09:52 AM
Thanks for the info, this camera uses AA's so it's probably not a battery problem. I'll try and take it apart, got nothing to lose.
04-21-2014 03:54 PM
I hear ya! I was wondering if you tried the self timer exposure too. The service manual is available online for that if you google it, if you proceed without it keep track of the screws