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Dell Inspiron 2100 サービスマニュアル
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Diagnostics
Dell™ Latitude™ 2100 Service Manual 
  Diagnostic Light Codes
  Battery Light Codes
  No-POST Light Codes
 
Diagnostic Light Codes
Diagnostic lights are located in two areas of your computer:
Bottom left of the palm rest
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Top right side of the keyboard
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1
power light
3
battery light
5
numeric key light
7
scroll lock light
 Battery Light Codes
If your computer is connected to an electrical outlet, the
Solid blue – The battery is charging.
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Flashing blue – The battery is almost fully charged.
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Fast flashing orange and then solid green – The battery is in temporary failure.
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Fast flashing orange – The battery is in a fatal failure.
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If your computer is running on a battery, the
Off – The battery is adequately charged, or the computer is turned off.
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Flashing orange – The battery charge is low.
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Solid orange – The battery charge is critically low.
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Fast flashing orange and then solid green – The battery is in temporary failure.
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Fast flashing orange – The battery is in a fatal failure.
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 No-POST Codes
The numeric key light, caps lock light, and scroll lock light are also used to diagnose issues that may occur in a no-POST scenario.
Appearance
ON-FLASH-FLASH
2
hard drive activity light
4
wireless networking activity light
6
caps lock light
 
 
light operates as follows:
light operates as follows:
Description
Next Step
1. Install supported memory modules.