Hi - I have found a sony video 8 handycam ccd-f500e in my loft. It powers up but I cannot figure out how to get it to play the tape. I have the power on player and press play or rew or FF and nothing happens. The display has a small flashing square with a triangle on top in the top right hand of the window. I tried looking for the manual but it doesnt appear to be available. any ideas?