16
Optional Features
Book Card Care
• Do not touch the metal
contacts on the book cards.
Caution:
Touching these electrical
contacts with statically charged ob-
jects, including your fingers, could
erase information entered in a book
card or built-in book.
• Do not expose the book cards
to heat, cold, or liquids.
• Do not put excessive pressure
on the book cards.
LBS.
AC adaptor jack:
Some BOOK-
MAN models are equipped with a stan-
dard 3.5 mm jack for use with a 9-volt,
200-300 milliamp AC/DC adaptor.
This symbol indicates that the inner
core of the plug of an AC adaptor is
negative and that the outer part of the
plug is positive. If your AC/DC adap-
tor does not have this symbol, con-
firm its compatibility at its place of pur-
chase.
Headphone jack:
Some BOOK-
MAN models also have a 3.5 mm ste-
reo headphone jack for use with a stan-
dard impedance 8 Ohm headset.
Headphone
jack
AC adaptor
jack
