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Acer Aspire 5540 Service Guide - Page 18

The power

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The power, battery and wireless communication status indicators are visible even when the LCD display is closed. Icon Function Description Icon Function Cap lock Description Lights when Cap Lock is activated Icon Function Description Num lock Lights when Num Lock is activated. HDD Bluetooth Wireless LAN Battery Power Indicates when the hard disc or optical drive is active. Indicates the status of Bluetooth communication. Indicates the status of wireless LAN communication. Lights up when the battery is being charged. Lights up when the computer is on. 12 Chapter 1

Section	Page
Aspire 5540/5560 Service Guide	1
Revision History	2
Copyright	3
Disclaimer	3
Conventions	4
Preface	5
Ch.1 System Specifications	7
Features	7
System Block Diagram	9
Board Layout	10
Top View	10
Bottom View	11
Your Acer Notebook tour	13
Closed Front View	14
Left View	15
Right View	16
Rear Panel	16
Bottom Panel	17
Indicators	17
Easy-Launch Buttons	19
Touchpad Basics	19
Using the Keyboard	21
Lock Keys and embedded numeric keypad	21
Windows Keys	21
Hot Keys	22
Special Key	23
Acer Empowering Technology	25
Acer eDataSecurity Management	25
Acer eLock Management	27
Acer ePerformance Management	28
Acer eRecovery Management	29
Acer eSettings Management	30
Acer eNet Management	31
Acer ePower Management	32
Hardware Specifications and Configurations	35
Ch.2 System Utilities	43
BIOS Setup Utility	43
Navigating the BIOS Utility	44
Information	45
Main	46
Security	48
Boot	52
Exit	53
BIOS Flash Utility	54
Ch.3 Machine Disassembly and Replacement	55
General Information	56
Before You Begin	56
Disassembly Procedure Flowchart	57
Removing the Battery Pack	59
Removing the Wireless LAN Card/the HDD Module/the Memory/the ODD Module and the LCD Module	60
Removing the Memory and the HDD Module	60
Removing the ODD Module	61
Removing the LCD Module	61
Disassembling the Main Unit	64
Separate the Main Unit Into the Upper and the Lower Case Assembly	64
Disassembling the Lower Case Assembly	64
Disassembling the Upper Case Assembly	66
Disassembling the LCD Module	68
Disassembling the LCD Module (with video camera)	70
Disassembling the External Modules	73
Disassembling the HDD Module	73
Disassembling the ODD Module	73
Ch.4 Troubleshooting	75
System Check Procedures	76
External Diskette Drive Check	76
External CD-ROM Drive Check	76
Keyboard or Auxiliary Input Device Check	76
Memory check	77
Power System Check	77
Touchpad Check	79
Power-On Self-Test (POST) Error Message	80
Index of Error Messages	81
Phoenix BIOS Beep Codes	84
Index of Symptom-to-FRU Error Message	88
Intermittent Problems	91
Undetermined Problems	92
Ch.5 Jumper and Connector Locations	93
Top View	93
Bottom View	94
Ch.6 FRU (Field Replaceable Unit) List	97

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