Radio Shack PRO-2040 - Manual (Page 7)

7
PREPARATION
CONNECTING POWER
Using Standard AC Power
You can power your scanner from a
standard AC outlet using the sup-
plied AC adapter.
Warning: Do not use the AC adapt-
er’s polarized plug with an extension
cord receptacle unless the blades
can be fully inserted to prevent blade
exposure.
Cautions:
• The supplied AC adapter sup-
plies 12 volts and delivers 500
milliamps. Its center tip is set to
positive, and its plug properly fits
the scanner’s
DC 12V jack.
Using an AC adapter that does
not meet these specifications
could damage the scanner or
the adapter. The scanner’s dis-
play dims if the AC adapter you
use does not provide the
required 12 volts DC.
• Be sure you connect the AC
adapter to the scanner before
you connect it to a standard AC
outlet. Then disconnect the
adapter from the AC outlet
before you disconnect it from the
scanner.
• If you have difficulty inserting the
AC adapter’s polarized plug, do
not force it. Turn it over and rein-
sert it.
1. Insert the supplied AC adapter’s
barrel plug into the scanner’s DC
12V jack.
2. Plug the adapter’s power mod-
ule into a standard AC outlet.
Memory Backup
If a power failure occurs or if the pow-
er cord is disconnected, the scan-
ner’s memory backup circuit keeps
information in memory for up to 3
days.
Note: The memory backup circuit
begins to protect the contents in
memory within a few minutes after
you plug in the scanner.
20-414.fm Page 7 Wednesday, August 4, 1999 11:12 AM