Acer 7520 Manual de usuario descargar pdf (Pagina 84)

70 Chapter 3

Disassembling the Upper Case Assembly

1. Turn the upper case over.

2. Remove the two screws fastening the button board.

3. Detach the button board with FFC from the upper case as shown.

4. Remove the two screws fastening the LED board.

5. Detach the LED board with FFC from the upper case as shown.

6. Remove the four screws fastening the speakers.

7. Remove the speakers from the upper case as shown.

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Aspire 7520/7220 Series 1
Service Guide 1
Revision History 2
Copyright 3
Disclaimer 3
Conventions 4
System Specifications 7
Input devices 8
Communication 8
Dimensions and weight 8
Power subsystem 8
I/O Ports 9
Options and accessories 9
Software 9
Environment 10
System compliance 10
Warranty 10
System Block Diagram 11
Board Layout 12
Your Acer Notebook Tour 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
Hot Keys 22
Special Key 23
The US dollar sign 24
Acer Empowering Technology 25
Acer eNet Management 26
Acer ePower Management 27
Battery status 28
Acer eAudio Management 29
Chapter 1 25 31
Acer eLock Management 32
Acer eRecovery Management 33
Acer eSettings Management 34
Using the System Utilities 36
Launch Manager 37
Chapter 1 33 39
System Memory 39
Memory Combinations 39
Second Level Cache 39
36 Chapter 1 42
DVD-Dual Interface 42
Audio Interface 42
Hard Disk Drive Interface 42
Chapter 1 37 43
Chapter 1 39 45
LCD 15.4” inch 45
BIOS Setup Utility 47
System Utilities 47
Navigating the BIOS Utility 48
AS7220 Model BIOS Screens 49
44 Chapter 2 50
Information 51
Advanced 53
Security 54
Setting a Password 55
Removing a Password 56
Changing a Password 56
Chapter 2 51 57
Setup Warning 57
Boot Exit 59
AS7250/G Model BIOS Screens 60
Chapter 2 55 61
Exit Saving Changes 69
64 Chapter 2 70
Chapter 3 71
General Information 72
60 Chapter 3 74
Screw List 74
Removing the Battery Pack 75
Removing the HDD Module 76
Removing the Memory 76
Disassembling the Main Unit 80
Chapter 3 69 83
Disassembling the LCD Module 85
72 Chapter 3 86
Disassembling the HDD Module 87
Disassembling the ODD Module 87
Troubleshooting 89
System Check Procedures 90
Memory check 91
Power System Check 91
Check the Power Adapter 92
Touchpad Check 93
Index of Error Messages 95
82 Chapter 4 96
Error Message List 96
Chapter 4 83 97
Phoenix BIOS Beep Codes 98
Chapter 4 85 99
86 Chapter 4 100
Chapter 4 87 101
Indicator-Related Symptoms 102
Power-Related Symptoms 102
88 Chapter 4 102
LCD-Related Symptoms 102
Intermittent Problems 105
Undetermined Problems 106
Top View 107
Bottom View 108
Chapter 6 109
Aspire 7520/7220 FRU List 110

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