EMachines D620 Informations techniques télécharger pdf (Page 88)

98 Chapter 4

Index of Symptom-to-FRU Error Message

LCD-Related Symptoms

Symptom / Error Check or do the following in sequence

LCD backlight doesn't work

LCD is too dark

LCD brightness cannot be adjusted

LCD contrast cannot be adjusted

• Run “Load Setup Defaults” in BIOS Setup Utility, 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

• Mainboard

Unreadable LCD screen

Missing pels in characters

Abnormal screen

Wrong color displayed

• Reconnect the LCD connector

• LCD inverter ID

• LCD cable

• LCD inverter

• LCD

• Mainboard

LCD has extra horizontal or vertical lines

displayed.

• LCD inverter ID

• LCD inverter

• LCD cable

• LCD

• Mainboard

Indicator-Related Symptoms

Symptom / Error Check or do the following in sequence

Indicator incorrectly remains off or on, but

system runs correctly

• Reconnect the inverter board.

• Mainboard

Power-Related Symptoms

Symptom / Error Check or do the following in sequence

Power shuts down during operation

• Power source (battery pack and power adapter). See “Power

System Check” on page 89.

• Battery pack

• Power adapter

• Hard disk drive & battery connection board

• Mainboard

The system doesn’t power-on.

• Power source (battery pack and power adapter). See “Power

System Check” on page 89.

• Battery pack

• Power adapter

• Hard disk drive & battery connection board

• Mainboard

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