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Acer Aspire 5520 Aspire 5220/5520/5520G Service Guide - Page 72

Disassembling the Lower Case Assembly

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7. Disconnect the touchpad FFC, left speaker cable, button board FFC, and LED board FFC from the main board. 8. Carefully detach the upper case assembly from the lower case assembly. Disassembling the Lower Case Assembly 1. Disconnect the USB cable from the main board. 2. Remove the screw fastening the USB board and take out the board and its cable from the lower case. 3. Then detach the USB cable from the USB board. 4. Disconnect the Bluetooth cable from the main board. 5. Take out the Bluetooth module and its cable from the lower case as shown. 6. Then detach the Bluetooth cable from the Bluetooth module. 7. Disconnect the right speaker cable from the main board. 8. Remove the two screws fastening the right speaker, then lift it out from the lower case. 79 Chapter 3

Section	Page
Features	7
System Block Diagram	11
Board Layout	12
Top View	12
Bottom View	13
Your Acer Notebook Tour	14
Front View	14
Closed Front View	15
Left View	16
Right View	17
Rear view	17
Base view	18
Indicators	18
Easy-Launch Buttons	19
Touchpad Basics	20
Using the Keyboard	21
Lock Keys and embedded numeric keypad	21
Windows Keys	21
Hot Keys	22
Special Key	23
Acer Empowering Technology	25
Empowering Technology password	25
Acer eNet Management	25
Acer ePower Management	27
Acer ePresentation Management	28
Acer eDataSecurity Management	29
Acer eLock Management	31
Acer eRecovery Management	32
Acer eSettings Management	33
Using the System Utilities	35
Acer GridVista (dual-display compatible)	35
Launch Manager	36
Hardware Specifications and Configurations	37
BIOS Setup Utility	45
Navigating the BIOS Utility	46
Information	47
Main	48
Advanced	50
Security	51
Boot	55
Power	56
Exit	58
BIOS Flash Utility	59
General Information	62
Before You Begin	62
Disassembly Procedure Flowchart	63
Removing the Battery Pack	65
Removing the HDD Module/Memory/Wireless LAN Card/Modem Card/ System Fan/Thermal Modules/VGA Board/CPU/Keyboard and the LCD Module	66
Removing the HDD Module	66
Removing the Memory	66
Removing the Wireless LAN Card/Modem Card and TV Tuner Card	67
Removing the System Fan/Thermal Modules/VGA Board and CPU	68
Removing the Keyboard and LCD Module	69
Disassembling the Main Unit	71
Separate the Main Unit Into the Upper and the Lower Case Assembly	71
Disassembling the Lower Case Assembly	72
Disassembling the Upper Case Assembly	74
Disassembling the LCD Module	75
Disassembling the External Modules	77
Disassembling the HDD Module	77
Disassembling the ODD Module	77
System Check Procedures	80
External Diskette Drive Check	80
External CD-ROM Drive Check	80
Keyboard or Auxiliary Input Device Check	80
Memory check	81
Power System Check	81
Touchpad Check	83
Power-On Self-Test (POST) Error Message	84
Index of Error Messages	85
Phoenix BIOS Beep Codes	88
Index of Symptom-to-FRU Error Message	92
Intermittent Problems	95
Undetermined Problems	96
Top View	97
Bottom View	98
Aspire Fuquene Exploded Diagram	100

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