+---+
|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' 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'
-----------------------------------------------------------------------
+---+
|007|
+---+
DID THE PROBLEM OCCUR ONLY WHEN USING THE BATTERY?
+---+
Yes No-+008| Go to Step 014
+-+-+ +---+
|009|
+---+
DOES A FULLY-CHARGED BATTERY DISCHARGE QUICKLY?
+---+
Yes No-+010| Go to Step 013
+-+-+ +---+
|011|
+---+
- Run advanced diagnostics for all devices using the AC adapter.
Use the RUN TEST ONE TIME option.
DID ALL THE TESTS END WITHOUT AN ERROR ?
+---+
Yes No-+012| Follow the instructions on the screen.
+-+-+ +---+ If the instructions do not appear or do not correct
|013| the problem, replace the system board.
+---+
Go to 'Testing the Battery Pack'
If 'Testing the Battery Pack' does not correct the problem,
go to 'Testing the Voltage Converter'
-----------------------------------------------------------------------
+---+
|014|
+---+
- Unplug the AC adapter if used.
- Remove the bottom cover and disconnect the flat cable from connector
CN6 on the voltage converter. (See page 'Connector Location')
- Check that the resistance at connector CN5 is greater than 5 ohms
between pins 7 and 1, and also between 7 and 3.
IS THE RESISTANCE CORRECT ?
+---+
Yes No-+015| Go to Step 017
+-+-+ +---+
|016|
+---+
Go to 'Testing the Voltage Converter'
If 'Testing the Voltage Converter' does not correct the problem,
go to Step 017
+---+
|017|
+---+
- Remove the following if installed:
° Battery pack
° Standby battery
° Backup battery
° Memory module kit
° Internal Data/Fax modem
° Serial adapter
° Numeric keypad
° Mouse
° External display
° Hard disk drive
° Diskette drive
° LCD inverter cable
° LCD panel cable.
- Make sure the voltage converter is correctly installed.
- Plug in the AC adapter and power-on the computer.
DID YOU HEAR ONE LONG OR TWO SHORT BEEPS ?
+---+
Yes No-+018| Replace the following FRUs one at a time
| +---+ until the problem is corrected
|
| ° Voltage converter
+-+-+ ° I/O panel assembly
|019| ° System board
+---+
Replace the voltage converter to verify the fix.
If the problem still remains, do the following.
- Suspect one of the options or devices.
Reinstall each of the options or devices to the computer one at a
time, and power-on the computer to see if the
original problem occurs.
- Replace the last installed option or device when the
problem occurs.
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Feel free - send a 
for any BUG on this page found - Thank you.