Shutter button wont work

Your photos will not be affected by this fault. Just take the memory card out of the camera and read it with a card reader attached to the computer.

Unfortunately the camera will probably need an expensive repair, or if that isn't economic, replacement.

there is a problum in lsv assy means lens block assy please go to your nearst sony service centre & fix this problum

eror#45

As far as I know, the autofocus (AF) light is needed only in lower light conditions to illuminate the subject. You may not be able to rely on it working without having good light available so you should try some shots in poorer light to see if it is really not working before depending on having in-focus snaps. 
If you don't use it in low light conditions, you may not miss it. 

Check out this link: www.digitalcamera-hq.com/digital-cameras/fuji-finepix-z1_question.html?qid=4289
After the basics, try dropping the camera on a carpeted area from about 2-3 feet. It worked for my Fuji A500 and 90% of the responders on the link. Everything on the web said it would cost ~$100 to fix. I was in the process of researching new cameras to buy and had nothing to lose by dropping it on the floor.
The error may be caused by debris in the zoom mechanism preventing it from working. Dropping the camera loosens the debris and voila!

Dear phill523:

Unfortunately the solution is to call Canon (1-800-828-4040) and send the camera into the Service Center for repair.

Hope this helps a bit.

Sincerely,
HeavyDLB

Mine dropped two feet on carpet, and it won't turn on. How do you access internal memory?

camera needs new shutter switch .If you can repair yourself and save $$$ .A few outside screws and new switch just plugs in ..new switch is an improved part #147724313 order at sony.com ..goodluck

Gently tap it on a table or flat surface a few times. Worked for me!

This sounds like mirror box motor problem ( see enclosed shot from our workshop ) : this cocks the shutter and controls mirror mechanism and when the drive dosnt work properly ( small nylon gear on the motor goes ) camera will develop the the sort of problems you describe.
Can be repaired but will cost $ 150-200 so it is relatively expensive repair.