Telxon PTC-921 DOS, User Manual

Page: 17 / 52

Charging the battery pack
Charge the PTC-921 DOS’s lithium-ion battery pack
for 3 to 4 hours when you first receive the PTC and
whenever the battery pack becomes weak. A low-
battery message displays on the PTC’s screen when
the battery pack is running low. Refer to the
SC-921
DOS User’s Guide for charging instructions.
Turning on the PTC
Press one of the top three keys (ESC, SCAN, or ENT)
to turn on the PTC-921 DOS.
Checking the PTC
1. Make sure the PTC is turned on.
2. Look at the PTC’s display screen. What appears
on the screen depends on the program your
organization uses.
If the PTC is operating correctly, you should not
see or hear any of the following:
•
A low-battery warning
•
A blank display screen
•
Any warning beeps
Repeat the steps in this section if the PTC-921
DOS is not operating properly. If the problem
persists, refer to the “Troubleshooting” section
on page 22.
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