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Emachines D720 User Manual Page 66
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56
Chapter 3
1
2
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173
174
Service Guide
1
Revision History
2
Copyright
3
Disclaimer
3
Conventions
4
Table of Contents
10
System Specifications
11
System Block Diagram
13
Your Acer Notebook tour
14
Closed Front View
15
Rear View
15
Left View
16
Right View
17
Indicators
19
Using the Keyboard
21
Windows Keys
22
Hot Keys
23
Special Key
24
Using the System Utilities
25
System Utilities
31
Information
32
←→ Select Menu Ente
33
Advanced
34
Security
36
Setting a Password
37
Removing a Password
37
Changing a Password
38
BIOS Flash Utilities
43
DOS Flash Utility
44
Chapter 2 35
45
WinFlash Utility
46
Key in bios_pw 14452 0
48
40 Chapter 2
50
Disassembly Requirements
51
Chapter 3
51
General Information
52
Removing the Battery Pack
54
Removing the Lower Covers
55
46 Chapter 3
56
Removing the DIMM Modules
57
Removing the WLAN Module
58
Chapter 3 49
59
Chapter 3 51
61
Step Size Quantity Screw Type
61
HDD Carrier M3*3 4
61
Main Unit Disassembly Process
64
Removing the Switch Cover
65
56 Chapter 3
66
Removing the Keyboard
67
Removing the Antenna
68
Chapter 3 59
69
Removing the LCD Module
70
Removing the Upper Cover
72
64 Chapter 3
74
Removing the TouchPad Bracket
75
Removing the Speaker Modules
77
68 Chapter 3
78
Removing the Power Board
79
Removing the Modem Module
80
Removing the Main Board
81
72 Chapter 3
82
Removing the CPU Fan
83
Removing the Thermal Module
84
Removing the CPU
85
Removing the LCD Bezel
87
Removing the Inverter Board
88
Removing the Camera Module
89
Removing the LCD Panel
90
Removing the Antennas
92
Removing the MIC Module
93
Replacing the LCD Panel
94
Replacing the LCD Bezel
98
Replacing the CPU
99
Replacing the Thermal Module
99
Replacing the CPU Fan Module
100
Replacing the Mainboard
100
Replacing the Modem Module
101
Replacing the Power Board
102
Replacing the Speaker Module
103
94 Chapter 3
104
Replacing the Upper Case
105
Replacing the LCD Module
107
98 Chapter 3
108
Replacing the Antenna Cable
109
Replacing the Keyboard
110
Replacing the Switch Cover
111
Replacing the ODD Module
112
Chapter 3 103
113
Replacing the WLAN Module
114
Replacing the DIMM Modules
114
Replacing the Lower Covers
115
Replacing the Battery
116
Troubleshooting
117
Power On Issue
118
No Display Issue
119
Random Loss of BIOS Settings
120
LCD Failure
121
Built-In Keyboard Failure
121
TouchPad Failure
122
Internal Speaker Failure
122
Sound Problems
123
Internal Microphone Failure
124
HDD Not Operating Correctly
125
ODD Failure
126
Discs Do Not Play
127
Discs Do Not Burn Properly
127
Playback is Choppy
127
Drive Not Detected
128
Drive Read Failure
128
Modem Function Failure
129
Wireless Function Failure
129
Thermal Unit Failure
130
External Mouse Failure
130
Other Failures
131
Intermittent Problems
132
Undetermined Problems
132
Post Codes
133
BDS & Specific action:
134
Top View
139
Chapter 5
139
Bottom View
140
Clearing Password Check
141
BIOS Recovery by Crisis Disk
142
Chapter 6
143
Main Assembly
144
LCD Panel
145
136 Chapter 6
146
Chapter 6 137
147
138 Chapter 6
148
Chapter 6 139
149
Screw List
150
Chapter 6 141
151
Appendix A
152
Appendix A 148
158
149 Appendix A
159
Appendix A 150
160
151 Appendix A
161
Appendix A 152
162
Test Compatible Components
163
Microsoft
164
Vista Environment Test
164
160 Appendix B
170
Online Support Information
171
162 Appendix C
172
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