CHECKOUT GUIDE
Battery Rundown
View Test Log
Print Log
Save Log
Full Erase Hard Drive
Quick Erase Hard Drive
Power systems checkout
To verify the symptom of a problem, 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, see the appropriate power
supply checkout in the following list:
“Checking the AC Adapter”
“Checking operational charging” on page 38
“Checking the battery pack” on page 38
“Checking the backup battery” on page 39
Checking the AC Adapter:
You are here
because the computer fails only when the AC Adapter is
used:
If the power problem occurs only when the port
replicator is used, replace the port replicator.
If the power-on indicator does not turn on, check the
power cord of the AC Adapter for correct continuity
and installation.
If the operational charge does not work, go to
“Checking operational charging” on page 38.
1. Unplug the AC Adapter cable from the computer and
measure the output voltage at the plug of the AC
Adapter cable. See the following figure:
(16 - 10 V)
Pin
Voltage (V dc)
1
+
15.5 to
+
17.0
Introduction
37
Summary of Contents for ThinkPad 2644
Page 7: ......
Page 11: ...INTRODUCTION 2 ThinkPad 570 Hardware Maintenance Manual ...
Page 64: ...FRU REMOVALS AND REPLACEMENTS 1010 Battery pack ThinkPad 570 55 ...
Page 66: ...FRU REMOVALS AND REPLACEMENTS Cable routing ThinkPad 570 57 ...
Page 71: ...FRU REMOVALS AND REPLACEMENTS 62 ThinkPad 570 Hardware Maintenance Manual ...
Page 75: ...FRU REMOVALS AND REPLACEMENTS 66 ThinkPad 570 Hardware Maintenance Manual ...
Page 88: ...FRU REMOVALS AND REPLACEMENTS ThinkPad 570 79 ...
Page 101: ...LOCATIONS Password pads 92 ThinkPad 570 Hardware Maintenance Manual ...
Page 102: ...PARTS LIST THINKPAD 570 Parts List ThinkPad 570 ThinkPad 570 93 ...
Page 111: ...PARTS LIST THINKPAD 570 102 ThinkPad 570 Hardware Maintenance Manual ...
Page 113: ...IBM Part Number 37L5191 Printed in U S A S37L 5191 ðð ...