IBM N51 Series User Manual

Power Systems Checkout
Note
One or all of the batteries can discharge if there is a
short circuit in the computer.
1. Replace the failing FRU if the power supply problem
is caused by a short circuit.
2. Determine if one (or all) of the batteries have become
discharged. Replace a discharged battery with a
known-good spare.
The test procedures for each power supply are found on
the following pages.
“Testing the AC Adapter” on page 81.
“Testing the Battery Pack” on page 82.
“Testing the Backup Battery” on page 83.
“Testing the Standby Battery” on page 83.
“Testing the Quick Charger” on page 84.
“Testing the Car Battery Adapter” on page 85.
“Testing the Voltage Converter” on page 85.
None of the above? Follow the steps below.
001
DID THE PROBLEM OCCUR ONLY WHEN USING THE
AC ADAPTER?
Yes No
002
Go to Step 004.
003
Go to “Testing the AC Adapter” on page 81. If “Testing
the AC Adapter” does not correct the problem, replace the
voltage converter.
004
DID THE PROBLEM OCCUR ONLY WHEN USING THE
CAR BATTERY ADAPTER?
Yes No
005
Go to Step 007.
006
Go to “Testing the Car Battery Adapter” on page 85.
007
(Step 007 continues)
78 IBM Mobile Systems HMM - Volume 1

IBM N51 Series Specifications

General

Brand	IBM
Model	N51 Series
Category	Laptop
Language	English