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Acer Aspire 9920G Aspire 9920G Service Guide - Page 72

Disassembling the Lower Case Assembly, Disconnect the modem cable and remove the modem board.

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Disassembling the Lower Case Assembly 11. Disconnect the bluetooth cable from the main board and detach the bluetooth module fromt the lower case. 12. Remove the two screws fastening the modem board and disconnect the modem board from the main board. 13. Disconnect the modem cable and remove the modem board. 14. Remove the three screws fastening the main board to the lower case. 15. Detach the main board from the lower case assembly. 72 Chapter 3

Section	Page
Ch.1 System Specification	1
Specification	1
Operating System	1
Platform	1
System Memory	1
Display and GraphicsT	1
Audio	2
Storage Subsystemg	2
Communication	2
Input Devices	2
I/O Interface	2
Power Subsystem	3
Security	3
Dimensions and Weight	3
Environment	3
Block Diagram	5
Outlook Tour	6
Front View	6
Closed Front View	7
Left View	8
Right View	8
Rear View	9
Base View	10
Indicators	11
Easy-launch Buttons	12
Touchpad	13
Touchpad Basics	13
Using the Keyboard	15
Lock Keys and Embedded Numeric Keypad	15
Windows keys	15
Hotkeys	16
Special keys	17
Acer OrbiCam	19
Rotating the Acer OrbiCam	19
Launching the Acer OrbiCam	20
Changing the Acer OrbiCam Settings	20
Capturing Photos/Videos	23
Using the Acer OrbiCam as Webcam	24
Enabling the Acer VisageON (for 1.3 megapixel camera models only)	24
Acer Empowering Technology	26
Empowering Technology Password	26
Acer eNet Management	27
Acer ePower Management	28
Acer ePresentation Management	31
Acer TPM-Based eDataSecurity Management	32
Acer eRecovery Management	34
Acer eSettings Management	34
Acer ePerformance Management	36
Hardware Specifications and Configurations	39
Ch.2 System Utilities	47
BIOS Setup Utility	47
Navigating the BIOS Utility	48
Information	49
Main	50
Advanced	52
Security	53
Boot	57
Exit	58
BIOS Flash Utility	59
Ch.3 Machine Disassembly and Replacement	61
General Information	62
Before You Begin	62
Disassembly Procedure Flowchart	63
Removing the Battery Pack	65
Removing the HDD/Memory Module/Wireless LAN Card/TV Tuner Card/ System Fan/Thermal Modules/CPU and the LCD Module	66
Removing the HDD	66
Removing the Memory Module	66
Removing the Wireless LAN Card/TV Tunder Card and System Fan	66
Removing the Thermal Modules and the CPU	68
Removing the ODD and Dummy cards	69
Removing the LCD Module	70
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	73
Disassembling the LCD Module	77
Disassembling the External Modules	79
Disassembling the HDD Module	79
Disassembling the ODD Module	79
Ch.4 Troubleshooting	81
System Check Procedures	82
External CD-ROM Drive Check	82
Keyboard or Auxiliary Input Device Check	82
Memory check	82
Power System Check	82
Touchpad Check	85
Power-On Self-Test (POST) Error Message	86
Index of Error Messages	87
Phoenix BIOS Beep Codes	90
Index of Symptom-to-FRU Error Message	94
Intermittent Problems	97
Undetermined Problems	98
Ch.5 Jumper and Connector Locations	99
Top View	99
Bottom View	101
Ch.6 FRU (Field Replaceable Unit) List	103

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