OK thanks. It much more than the battery after a better look, the shutter cocks (in manual) and when you press the button it does "click" but shutter doesn't fire. Also when you hold it upside down the rear blind opens a bit and you can see aperture blades, moving the aperture ring does not alter the aperture size like I expect. Time to get out the screwdrivers I think.
Shane
OK bit of a update, it seems to be missing a bit that links the blade activating shaft to the shutter speed gears, there is a little L shape metal piece that pivots and operates the shutter but there is nothing to connect that to the rest of everything else, i think there needs to be a rotating post just above it. Bugger was a nice little camera too.