Sony DSLR-A390 Instruction Manual page 6

Amoulded plug complying with BS 1363
is fitted to this equipment for y our safety
and convenience.
Should the f use in tile p lug supplied need to
be r eplaced, a fuse of t ile s ame rating as t ile
supplied one and approved by ASTA or
BSI to BS 1362, (i.e., marked wilh a n @ or
mark) must be used.
Ifthe p lug supplied with this equipment has
a detachable fuse cover, be sure to attach
tile f use cover afler you change tile fuse.
Never use the p lug without the f use cover.
Ifyou s hould lose tile f use cover, please
contact your nearest Sony service station.