Power Systems Checkout - IBM thinkpad r30 Hardware Maintenance Manual

v VGA Information
v IDE Drive Information
v PCI Information
v PNPISA Information
v SMBIOS Information
v FRU Information
v VESA LCD Information
Utility:
v Run External Tests
v Surface Scan Hard Disk
v Benchmark System
v DOS Shell
v Tech Support Form
v Battery Rundown
v View Test Log
v Print Log
v Save Log
v Full Erase Hard Drive
v Quick Erase Hard Drive

Power systems checkout

To verify the symptom of the power problem on the
computer, do the following:
1. Power off the computer.
2. Remove the battery pack.
3. Connect the AC Adapter.
4. Check that power is supplied when you power on the
computer.
5. Power off the computer.
6. Disconnect the AC Adapter and install the charged
battery pack.
7. Check that power is supplied by the battery pack when
you power on the computer.
If you suspect a power problem, refer the appropriate
power supply check listed below:
v "Checking the AC Adapter"
v "Checking operational charging" on page 35
v "Checking the Battery ASM" on page 36
Checking the AC Adapter
You care here because the computer fails only when the
AC Adapter is used:
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ThinkPad R30/R31 HMM