
vi Contents
Field-Replaceable Parts and Assemblies ................................................................................5-4
Cover-Display LCD Assembly.....................................................................................5-4
System Unit Assembly.................................................................................................5-5
Parts Removal and Replacement Procedures..........................................................................5-9
Removing the Battery Pack..........................................................................................5-9
Removing the Glidepad .............................................................................................5-10
Removing the Keyboard and Heat Plate.....................................................................5-10
Removing the LCD Panel ..........................................................................................5-11
Removing the System Upper Case.............................................................................5-12
Removing the Internal Hard Disk Drive.....................................................................5-12
Removing the IO Board and Charger Board...............................................................5-13
Removing the CPU Module.......................................................................................5-14
Removing the CD-ROM Module ...............................................................................5-15
Removing the FDD Module.......................................................................................5-16
Removing the DC/DC Board .....................................................................................5-17
Removing the Internal Speaker..................................................................................5-17
Removing / Replacing the Motherboard.....................................................................5-18
Troubleshooting and Repair..............................................6-1
Introduction...........................................................................................................................6-2
Helpful Starters ...........................................................................................................6-2
System BIOS Related Problems.............................................................................................6-3
POST Messages...........................................................................................................6-3
Informational Messages...............................................................................................6-5
Beep Codes..................................................................................................................6-5
Explanation of test terms for beep code table .........................................................................6-6
Beep codes for system board errors........................................................................................6-6
Run-time Error Messages...........................................................................................6-10
Quick Troubleshooting ........................................................................................................6-10
Component-Level Troubleshooting......................................................................................6-14
General Overview......................................................................................................6-14
ADC Test Check........................................................................................................6-15
Starting Check...........................................................................................................6-16
Memory Interface Check ...........................................................................................6-16
CRT Interface Check.................................................................................................6-17
FDD Interface Check.................................................................................................6-17
HDD Interface Check ................................................................................................6-18
Internal Keyboard Check ...........................................................................................6-18
Glidepad Interface Check...........................................................................................6-19
CD-ROM Interface Check .........................................................................................6-19
Charger Board Interface Check..................................................................................6-20
Serial Port Interface Check ........................................................................................6-20
External Keyboard Check..........................................................................................6-21
PS/2 Mouse Interface Check......................................................................................6-21
Printer Port Interface Check.......................................................................................6-22
Audio Port Interface Check........................................................................................6-22
PCMCIA Interface Check..........................................................................................6-23
USB Port Interface Check..........................................................................................6-23
FIR Interface Check...................................................................................................6-24
LCD Panel Interface Check........................................................................................6-24
Suspend Function Check............................................................................................6-25
LED Indicator Function Check ..................................................................................6-26
Cover Switch Function Check....................................................................................6-27