Sometimes tapes stick if left in the camera to long. Disassemble remove and clean. " If you can tell stuff is trying to work" This is not for the light hearted...Look at manufacturers web site parts list diagram is a great help.
Rare but some cameras act funny if cmos battery is low. These are $2-5 at local store. "button battery" Stamped # in back of battery. 2025 is a common one.
intuitionx2, March 2007