
iv
Power consumption........................................ 32
Electrical requirement .................................... 32
Check Procedures ............................................. 33
Introduction .......................................................... 34
Start ..................................................................... 35
Index of Symptoms, Messages, Error Codes,
or Beeps ............................................................... 40
Troubleshooting ................................................... 56
Factory-Installed Storage Devices ................. 56
Factory-Installed Modem Card ............................. 60
Audio (Not Supported by Diagnostics Program) .. 62
CD/DVD-ROM Drive ............................................ 65
Memory ................................................................ 67
Keyboard .............................................................. 69
Mouse .................................................................. 70
Power Supply ....................................................... 72
Monitor ................................................................. 75
Undetermined Problems ...................................... 77
Diagnostic Aids .................................................. 79
Introduction .......................................................... 80
Power-On Self Test .............................................. 81
Diagnostic Program ............................................. 83
Using Diagnostic Program from
Service Partition ............................................. 83
Using Diagnostic Program from
Recovery CD .................................................. 84
Diagnostics Program Features....................... 85
Repair Information ............................................. 89
Removals and Replacements .............................. 90
Handling ESD-Sensitive Parts ............................. 91
Cover.............................................................. 92
Hard Disk Drive .............................................. 93
Optical Drive................................................... 95
Modem Card and Add-on Card...................... 97
Memory(DIMM) .............................................. 98
Intel Pentium 4 Willamette Processor .......... 100
System Backup Battery................................ 102
Inverter Board (15” LCD only). ..................... 103
System Board............................................... 106
TFT Subassembly ........................................ 108
TouchPad Screen ........................................ 111
Indicator LED and Cable .............................. 112
Speaker ........................................................ 113