Power System Checkout - Acer 721TX - TravelMate - PII 333 MHz Service Manual

Flash Memory Update:
The flash memory update is required for the following conditions:
6
New versions of system programs
6
New features or options

Power System Checkout

To verify the symptom of the problem, power on the computer using each of
the following power sources:
1. Remove the battery pack and diskette drive.
2. Connect the AC Adapter and check that power is supplied.
3. Disconnect the AC Adapter and install the charged battery pack; then
check that power is supplied by the battery pack.
If you suspect a power problem, see the appropriate power supply checkout
in the following list:
6
"Checking the AC Adapter"
6
"Checking Operational Charging"
6
"Checking the Battery Pack"
Checking the AC Adapter:
6
If the power problem occurs only when the port replicator is used,
replace the port replicator.
6
If the power-on indicator does not turn on, check the power cord of the
AC Adapter for correct continuity and installation.
6
If the operational charge does not work, go to "Checking Operational
Charging."
86 Troubleshooting