DELL 1909 ユーザーズマニュアル

If the power light is off — The computer is 

either turned off or is not receiving power.

Reseat the power cable into both the 

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power connector on the computer and the 

electrical outlet.
If the computer is plugged into a power strip, 

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ensure that the power strip is plugged into 

an electrical outlet and that the power strip 

is turned on. Also bypass power protection 

devices, power strips, and power extension 

cables to verify that the computer turns on 

properly.
Ensure that the electrical outlet is working 

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by testing it with another device, such as a 

lamp.
Contact Dell (see “Contacting Dell” on 

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page 44).

If the power light is white and the computer is 
not responding — 
Contact Dell (see “Contacting Dell” on page 44).
If the power light is steady amber — 

The computer is in sleep state. Press a 

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key on the keyboard, move the mouse, or 

press the power button to resume normal 

operation
The system board cannot start initialization. 

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There may be an issue with either the system 

board or power supply. For assistance, 

contact Dell (see “Contacting Dell” on 

page 44).

If the power light is blinking amber — 

There is a power problem, a device may be 

malfunctioning or incorrectly installed. For 

assistance, contact Dell (see “Contacting Dell” 

on page 44).
If you encounter interference that hinders 
reception on your computer — An unwanted 

signal is creating interference by interrupting or