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
