Acer 4740G User Manual Page 125
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Chapter 3 115
Replacing the Mainboard
1. Ensure that the Mainboard is face up. Place the Mainboard in the chassis, left hand edge first to allow the
I/O Ports through the casing, then lower it into place.
2. Ensure the screw socket is aligned. Replace the one (1) securing screw as shown.
NOTE: Make sure the I/O ports are positioned correctly through the lower cover, and the screw sockets are
visible through the mainboard.
3. Replace the RJ-11 cable in the retaining clip on the Mainboard.
- Aspire 4740/4740G Series 1
- Service Guide 1
- Revision History 2
- Copyright 3
- Disclaimer 3
- Conventions 4
- Table of Contents 10
- System Specifications 11
- Environment 13
- System Block Diagram 14
- Your Acer Notebook tour 15
- Closed Front View 17
- Left View 18
- Right View 19
- Rear View 19
- Easy-Launch Buttons 21
- Indicators 21
- Using the Keyboard 23
- Windows Keys 24
- Hot Keys 25
- Special Key 26
- Using the System Utilities 27
- Chapter 1 23 33
- • Samsung LTN140AT01-G01 35
- • AUO B140XW01 35
- • LG LP140WH1 35
- • CMO N140B6 - L02 35
- System Utilities 39
- Information 40
- Security 42
- Setting a Password 43
- Removing a Password 43
- Set Supervisor Password 44
- BIOS Flash Utility 47
- DOS Flash Utility 48
- Chapter 2 39 49
- WinFlash Utility 50
- Removing BIOS Passwords: 52
- Cleaning BIOS Passwords 53
- Miscellaneous Utilities 54
- 46 Chapter 2 56
- Disassembly Requirements 57
- Chapter 3 57
- General Information 58
- Removing the Battery Pack 60
- Removing the SD Dummy Card 61
- Removing the Lower Covers 62
- Chapter 3 53 63
- Removing the WLAN Module 64
- Chapter 3 55 65
- Removing the DIMM Modules 66
- 58 Chapter 3 68
- Step Size Quantity Screw Type 68
- HDD Carrier M3*3 4 68
- Main Unit Disassembly Process 71
- Removing the Hinge Covers 73
- Removing the Switch Cover 74
- Chapter 3 65 75
- Removing the Keyboard 76
- Removing the Speaker Module 77
- 68 Chapter 3 78
- Removing the LCD Module 79
- 70 Chapter 3 80
- Chapter 3 71 81
- Chapter 3 73 83
- Removing the Upper Cover 84
- 78 Chapter 3 88
- Removing the TouchPad Bracket 89
- 80 Chapter 3 90
- Removing the Media Board 91
- 82 Chapter 3 92
- Media Board M2.5*3 2 92
- Removing the USB Board 93
- 84 Chapter 3 94
- Removing the Modem Module 95
- Removing the Bluetooth Module 96
- Chapter 3 87 97
- Bluetooth Module M2.5*3 1 97
- Removing the Mainboard 98
- Chapter 3 89 99
- Removing the RJ-11 Port 100
- Chapter 3 91 101
- Removing the Thermal Module 102
- Removing the CPU 104
- Removing the LCD Bezel 106
- Chapter 3 97 107
- Removing the Camera Module 108
- Removing the LCD Panel 109
- 100 Chapter 3 110
- Removing the Antennas 112
- Removing the MIC Module 113
- Replacing the MIC Module 114
- Replacing the Antennas 115
- Chapter 3 107 117
- Replacing the LCD Panel 118
- Chapter 3 109 119
- Replacing the Camera Module 120
- Replacing the LCD Bezel 121
- Replacing the CPU 122
- Replacing the Thermal Module 123
- Replacing the RJ-11 Port 124
- Replacing the Mainboard 125
- Replacing the Modem Module 127
- Replacing the USB Board 127
- Replacing the Media Board 128
- Chapter 3 119 129
- Chapter 3 121 131
- Replacing the Upper Cover 132
- 124 Chapter 3 134
- Replacing the LCD Module 135
- Replacing the Speaker Module 138
- Replacing the Keyboard 139
- Replacing the Switch Cover 140
- Chapter 3 131 141
- Replacing the Hinge Covers 142
- Replacing the ODD Module 143
- Replacing the DIMM Modules 144
- Replacing the WLAN Module 145
- Replacing the Lower Covers 145
- Replacing the Battery 146
- Troubleshooting 147
- Power On Issue 148
- No Display Issue 149
- Random Loss of BIOS Settings 150
- LCD Failure 151
- Built-In Keyboard Failure 151
- Touchpad Failure 152
- Internal Speaker Failure 152
- Sound Problems 153
- Internal Microphone Failure 154
- HDD Not Operating Correctly 155
- ODD Failure 156
- Discs Do Not Play 157
- Discs Do Not Burn Properly 157
- Playback is Choppy 157
- Drive Not Detected 158
- Drive Read Failure 158
- USB Failure (Rightside) 159
- Modem Function Failure 159
- Wireless Function Failure 160
- Bluetooth Function Failure 160
- EasyTouch Button Failure 161
- Media Board Failure 161
- Fingerprint Reader Failure 162
- Thermal Unit Failure 162
- External Mouse Failure 163
- Other Failures 163
- Intermittent Problems 164
- Undetermined Problems 164
- Post Codes 165
- Top View 171
- Chapter 5 171
- Bottom View 172
- Clearing Password Check 173
- BIOS Recovery by Crisis Disk 174
- Chapter 6 175
- Main Module 176
- Aspire 4740/4740G FRU List 177
- Screw List 185
- 176 Chapter 6 186
- Chapter 6 177 187
- Aspire 4740 188
- Appendix A 188
- Aspire 4740G 194
- Appendix A 198 208
- Test Compatible Components 209
- Microsoft 210
- 7 Environment Test 210
- 204 Appendix B 214
- Online Support Information 215
- 206 Appendix C 216
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