Simon Royle

Dear all, Took my old 1992 diversion XJ600S out for a spin last week. Drove 160Km on one day, but when I went to start the next day, upon turning the key the lights came on for a second and then everything died. Now no power at all when turning key on and I cannot explain it. Checked battery, no problem, 13.19 volts ( spent the winter on a trickle charger). Checked all fused, not avail. Anyone a clue where to start looking? Thanks, Simon