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Turns on steadily or blinks to indicate battery charge status.
Turns on when wireless networking is enabled.
The device status LEDs are usually located either on the top or left side of the keyboard. They are used to display the
storage, battery and wireless devices connectivity and activity. Apart from that they can be useful as a diagnostic tool
when there's a possible failure to the system.
The following table lists how to read the LED codes when possible errors occur.
Table 15. LED Lights
Storage LED
Power LED
Wireless LED
Fault Description
Blinking
Solid
Solid
A possible processor failure has occurred.
Solid
Blinking
Solid
The memory modules are detected but has encountered an
error.
Blinking
Blinking
Blinking
A system board failure has occurred.
Blinking
Blinking
Solid
A possible graphics card/video failure has occurred.
Blinking
Blinking
Off
System failed on hard drive initialization OR System failed in
Option ROM initialization.
Blinking
Off
Blinking
The USB controller encountered a problem during
initialization.
Solid
Blinking
Blinking
No memory modules are installed/detected.
Blinking
Solid
Blinking
The display encountered a problem during initialization.
Off
Blinking
Blinking
The modem is preventing the system from completing POST
Off
Blinking
Off
Memory failed to initialize or memory is unsupported.
Battery Status Lights
If the computer is connected to an electrical outlet, the battery light operates as follows:
Alternately
blinking amber
light and white
light
An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop.
Alternately
blinking amber
light with steady
white light
Temporary battery failure with AC adapter present.
Constantly
blinking amber
light
Fatal battery failure with AC adapter present.
Light off
Battery in full charge mode with AC adapter present.
White light on
Battery in charge mode with AC adapter present.
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Содержание Latitude E6540
Страница 1: ...Dell Latitude E6540 Owner s Manual Regulatory Model P29F Regulatory Type P29F001 ...
Страница 5: ...6 Contacting Dell 75 ...
Страница 6: ...6 ...
Страница 10: ...10 ...
Страница 14: ...3 Flip the battery out of the computer 14 ...
Страница 16: ...3 Lift the base cover and remove it from the computer 16 ...
Страница 30: ...4 Flip the computer and remove the screws that secure the palmrest assembly to the computer 30 ...
Страница 31: ...5 Disconnect the following cables a fingerprint reader b touchpad c power button 31 ...
Страница 32: ...6 Pry the palmrest assembly upwards and remove it from the computer 32 ...
Страница 38: ...5 Lift the system board from the computer 38 ...
Страница 41: ...4 Lift the speakers from the computer 41 ...
Страница 45: ...5 Remove the screws that secure the display assembly to the computer 45 ...
Страница 46: ...6 Remove the display assembly from the computer 46 ...
Страница 50: ...3 Remove the screws that secure the display panel to the display assembly 4 Flip the display panel over 50 ...
Страница 54: ...54 ...
Страница 74: ...74 ...