Index of Symptom-to-FRU Error Message
LCD-Related Symptoms
Symptom/Error | Action in Sequence |
|
|
LCD backlight doesn't work. | Enter BIOS Utility to execute Load Setup Default |
LCD is too dark. | Settings, then reboot system. |
LCD brightness cannot be adjusted. | Reconnect the LCD connectors. |
LCD contrast cannot be adjusted. | Keyboard (if contrast and brightness function key do |
| not work). |
| LCD inverter ID |
| LCD cable |
| LCD inverter |
| LCD |
| System board |
|
|
Unreadable LCD screen | Reconnect the LCD connector. |
Missing pels in characters | LCD inverter ID |
Abnormal screen | LCD cable |
Wrong color displayed | LCD inverter |
| LCD |
| System board |
|
|
LCD has extra horizontal or vertical | LCD inverter ID |
lines displayed. | LCD inverter |
| LCD cable |
| LCD |
| System board |
|
|
Indicator-Related Symptoms
Symptom/Error | Action in Sequence |
|
|
Indicator incorrectly | Reconnect the inverter board |
remains off or on, but | Inverter board |
system runs correctly. | System board |
|
|
Power-Related Symptoms
Symptom/Error | Action in Sequence |
|
|
Power shuts down during | Power source (battery pack and power adapter). See Power |
operation. | System Check. |
| Battery pack |
| Power adapter |
| Hard drive & battery connection board |
| System board |
|
|
The system doesn’t power | Power source (battery pack and power adapter). See Power |
on. | System Check. |
| Battery pack |
| Power adapter |
| Hard drive & battery connection board |
| System board |
|
|
80 | Chapter 4 |