Chapter 4
111
Index of Symptom-to-FRU Error Message
LCD-Related Symptoms
Symptom / Error
Action in Sequence
LCD backlight doesn't work
LCD is too dark
LCD brightness cannot be adjusted
LCD contrast cannot be adjusted
Enter BIOS Utility to execute “Load Setup Default Settings”,
then reboot system.
Reconnect the LCD connectors.
Keyboard (if contrast and brightness function key doesn't
work).
LCD inverter ID
LCD cable
LCD inverter
LCD
System board
Unreadable LCD screen
Missing pels in characters
Abnormal screen
Wrong color displayed
Reconnect the LCD connector
LCD inverter ID
LCD cable
LCD inverter
LCD
System board
LCD has extra horizontal or vertical lines
displayed.
LCD inverter ID
LCD inverter
LCD cable
LCD
System board
Indicator-Related Symptoms
Symptom / Error
Action in Sequence
Indicator incorrectly remains off or on, but
system runs correctly
Reconnect the inverter board
Inverter board
System board
Power-Related Symptoms
Symptom / Error
Action in Sequence
Power shuts down during operation
Power source (battery pack and power adapter). See “Power
System Check” on page 99.
Battery pack
Power adapter
Hard drive & battery connection board
System board
The system doesn’t power-on.
Power source (battery pack and power adapter). See “Power
System Check” on page 99.
Battery pack
Power adapter
Hard drive & battery connection board
System board
Содержание Aspire 2420
Страница 6: ...VI ...
Страница 10: ...X Table of Contents ...
Страница 48: ...38 Chapter 1 ...
Страница 62: ...52 Chapter 2 K Reboot system and key in N9H7W7I 9HNXDDI BCIKFVX TPFIK1K or Q918H7I to HDD user password ...
Страница 106: ...96 Chapter 3 ...
Страница 120: ...110 Chapter 4 F5h Boot to Mini DOS F6h Clear Huge Segment F7h Boot to Full DOS Code Beeps ...
Страница 127: ...Chapter 5 117 Top View Jumper and Connector Locations Chapter 5 ...
Страница 128: ...118 Chapter 5 Bottom View ...
Страница 162: ...Appendix A 152 ...
Страница 166: ...156 Appendix B ...
Страница 168: ...158 Appendix C ...