4
Using the Special Features
PC
Serial Port
Headphone Jack
Volume Control
Your BOOKMAN 770 is equipped with
several special features that many, but
not all, BOOKMAN books use. To
learn if you can use the special fea-
tures with a particular BOOKMAN
book, read its User’s Guide.
Headphone Jack:
The headphone
jack is designed for 3.5 mm, 35 ohm
impedance stereo headphones.
Cau-
tion:
Monophonic headphones will not
work with this BOOKMAN model.
Volume Control:
The dial located
under the headphone jack controls the
volume of the speaker or headphones.
Serial Port:
The serial port allows
certain BOOKMAN books, when
Franklin’s 3.5 mm serial cable is con-
nected to your BOOKMAN, to transfer
data to a personal computer (PC).
Warning:
Using a serial cable other
than the one obtained from Franklin
may damage your BOOKMAN and/or
PC. Franklin’s serial cable is specifi-
cally designed for the transfer of data
between BOOKMAN and a PC.
Speaker:
The speaker is located on
the back of your BOOKMAN near the
serial port. For best results, do not
cover the speaker with your hand.
