EMachines E520 User Manual download pdf (Page 95)

Chapter 3 85

Removing the USB Board

1. See “Removing the Upper Cover” on page 68.

2. See “Removing the Bluetooth Module” on page 84.

3. Remove cable from the USB board.

4. Remove the two securing screws from the USB board and lift clear of the chassis.

Step Size Quantity Screw Type

USB board M2.5*4 (NL) 2

1 2 ... 90 91 92 93 94 95 96 97 98 99 100 ... 213 214

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
Left View 16
Right View 17
Rear View 17
Indicators 19
TouchPad Basics 19
Using the Keyboard 20
Windows Keys 21
Hot Keys 22
Special Key 23
Using the System Utilities 24
• ICH9-M 32
System Utilities 35
Information 36
INCREASE/REDUCE : F5/F6 37
Security 38
Setting a Password 39
Removing a Password 39
Changing a Password 40
BIOS Flash Utilities 45
DOS Flash Utility 46
WinFlash Utility 47
Key in bios_pw 14452 0 49
Miscellaneous Utilities 51
Disassembly Requirements 53
Chapter 3 53
General Information 54
Removing the Battery Pack 56
Removing the SD dummy card 57
48 Chapter 3 58
Removing the Lower Covers 59
50 Chapter 3 60
Removing the DIMM Modules 61
Removing the WLAN Module 62
Chapter 3 53 63
WLAN bracket 63
Removing the TV tuner Module 64
Chapter 3 57 67
Step Size Quantity Screw Type 67
HDD Carrier M3*3 (NL) 4 67
Main Unit Disassembly Process 70
Removing the Switch Cover 72
Removing the Keyboard 73
Removing the Antenna 74
Chapter 3 65 75
Removing the LCD Module 76
Removing the Upper Cover 78
Chapter 3 71 81
Removing the TouchPad Bracket 86
Removing the Launch Board 88
Removing the Media Board 88
Removing the eKey Board 89
80 Chapter 3 90
Removing the Switch Board 91
Removing the TV Board 93
Removing the Bluetooth Module 94
Removing the USB Board 95
Removing the Modem Module 96
Removing the Subwoofer Module 97
Removing the Main Board 98
Removing the RJ-11 Port 100
Removing the Thermal Module 101
92 Chapter 3 102
Removing the CPU 103
Removing the VGA Module 104
Removing the LCD Bezel 106
Removing the Inverter Board 107
98 Chapter 3 108
Removing the Camera Module 109
Removing the LCD Panel 111
Removing the Antennas 113
Removing the MIC Module 114
Replacing the LCD Panel 115
108 Chapter 3 118
Replacing the LCD Bezel 119
Replacing the VGA Module 120
Replacing the CPU 120
Replacing the Thermal Module 121
Replacing the RJ-11 Port 121
112 Chapter 3 122
Replacing the Mainboard 123
Replacing Subwoofer Module 124
Replacing the Modem Module 124
Replacing the USB Board 125
Replacing the Bluetooth Board 126
Replacing the TV Board 126
Chapter 3 117 127
Replacing the Switch Board 128
Replacing the eKey Board 128
Chapter 3 119 129
3. Replace the single screw 129
Replacing the Media Board 130
Chapter 3 121 131
Replacing the Launch Board 132
Chapter 3 123 133
Replacing the Upper Cover 135
Replacing the LCD Module 137
128 Chapter 3 138
LCD cable MIC cable 138
Back light cable 138
Replacing the Antenna Cables 139
Replacing the Keyboard 140
Replacing the Switch Cover 140
Replacing the TV Tuner Module 141
132 Chapter 3 142
Replacing the WLAN Module 143
Replacing the DIMM Modules 144
Replacing the ODD Module 145
Replacing the Lower Covers 146
138 Chapter 3 148
Troubleshooting 149
Power On Issue 150
No Display Issue 151
Random Loss of BIOS Settings 152
LCD Failure 153
Built-In Keyboard Failure 153
TouchPad Failure 154
Internal Speaker Failure 154
Sound Problems 155
Internal Microphone Failure 156
HDD Not Operating Correctly 157
ODD Failure 158
Discs Do Not Play 159
Discs Do Not Burn Properly 159
Playback is Choppy 159
Drive Not Detected 160
Drive Read Failure 160
USB Failure (Rightside) 161
Modem Function Failure 161
Wireless Function Failure 162
EasyTouch Button Failure 162
MediaTouch Button Failure 163
Fingerprint Reader Failure 163
Thermal Unit Failure 164
HDTV Switch Failure 164
External Mouse Failure 165
Other Failures 165
Intermittent Problems 166
Undetermined Problems 166
POST Codes Tables 167
Port80 Codes Continued 168
Post Key 169
160 Chapter 4 170
Top View 171
Chapter 5 171
Bottom View 172
Clearing Password Check 173
BIOS Recovery by Crisis Disk 174
Chapter 6 177
Screw List 187
Appendix A 188
179 Appendix A 189
Appendix A 180 190
181 Appendix A 191
Appendix A 182 192
183 Appendix A 193
Appendix A 184 194
185 Appendix A 195
Appendix A 186 196
187 Appendix A 197
Appendix A 188 198
189 Appendix A 199
Appendix A 190 200
191 Appendix A 201
Appendix A 192 202
193 Appendix A 203
Appendix A 194 204
195 Appendix A 205
Appendix A 196 206
Test Compatible Components 207
Microsoft 208
Vista Environment Test 208
Online Support Information 211
202 Appendix C 212

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EMachines E520 User Manual Page 95

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