EMachines E520 User Manual Page 149
- Page / 214
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Chapter 4 139
Troubleshooting
Common Problems
Use the following procedure as a guide for computer problems.
NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or
modified options can give false errors and invalid system responses.
1. Obtain the failing symptoms in as much detail as possible.
2. Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating
the same operation.
3. Use the following table with the verified symptom to determine which page to go to.
4. If the Issue is still not resolved, see “Online Support Information” on page 201.
Symptoms (Verified) Go To
Power On Issue Page 140
No Display Issue Page 141
LCD Failure Page 143
Internal Keyboard Failure Page 143
TouchPad Failure Page 144
Internal Speaker Failure Page 144
Internal Microphone Failure Page 146
ODD Failure Page 148
Rightside USB Failure Page 151
Modem Failure Page 151
WLAN Failure Page 152
Acer EasyLaunch Button Failure Page 152
Acer MediaTouch Failure Page 153
Fingerprint Reader Failure Page 153
Thermal Unit Failure Page 154
HDTV Switch Failure Page 154
Other Functions Failure Page 155
Intermittent Failures Page 156
Undermined Failures Page 156
Chapter 4
- 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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