I bought a Nikon F801s at a camera flea market (actually, it came attached to a lens I wanted). The camera is pretty beaten up on the outside, but very clean inside the film chamber.
When I fire the camera up, it seems to work when I turn it on: the light meter seems to work, reacting to the aperture setting I choose on the lens, and adjusting the displayed shutter speed when pointing at different brightnesses. If I attach an autofocus lens, the autofocus works fine (af-d, screw drive lens). When I push the shutter button down fully, the display starts to flash/blink.
There is no film in the camera yet; I would like to have the best idea of whether the camera is likely to work before I risk putting film into it. I have checked for a troubleshooting section in the manual but there is none.
Is there a problem with the camera? Is it simply telling me that I need to put film in it, or is it telling me that there is a problem and I shouldn't bother?