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 | Reconnect the LCD connectors. |
adjusted. | Keyboard (if contrast and brightness function key do |
LCD contrast cannot be | not work). |
adjusted. | 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 | LCD inverter ID |
vertical lines displayed. | LCD inverter |
| LCD cable |
| LCD |
| System board |
|
|
Indicator-Related Symptoms
Symptom/Error | Action in Sequence |
|
|
Indicator incorrectly remains | Reconnect the inverter board |
off or on, but system runs | Inverter board |
correctly. | System board |
|
|
Power-Related Symptoms
Symptom/Error | Action in Sequence |
|
|
Power shuts down during | Power source (battery pack and power adapter). See |
operation. | Power System Check. |
| 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. |
| Battery pack |
| Power adapter |
| Hard drive & battery connection board |
| System board |
|
|
The system doesn’t | Power source (battery pack and power adapter). See |
| Power System Check. |
| Hold and press the power switch for more than 4 |
| seconds. |
| System board |
|
|
Chapter 4 | 93 |
