Using The Special Features - Franklin Professor PRO User Manual

Your unit is equipped with several special features that many, but not all,
BOOKMAN book cards use. To learn if you can use the special features with a
particular book card, read its User's Guide.
Contrast: The dial on the side of the
unit under the serial port enables you
to dim or lighten the screen.
AC Adaptor Jack: The AC/DC
adaptor is in the 9 volt range within a
current range of 200 to 300
milliamperes.
This symbol indicates that the inner
core of the plug of an AC adaptor is

Using the Special Features

negative and that the outer part of the
plug is positive. If the symbol on our
AC/DC adaptor does not match the
above symbol, confirm its
compatibility at its place of purchase.
Serial Port: Plug in a serial cable
here to connect the Deutsch/Englisch
Professor PRO to your PC using the
BOOKMAN Connectivity Kit
(available at www.franklin.com/de).
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AC Adaptor Jack
Serial
Port
Contrast