Acer Aspire M1420 Technical Information Seite 163
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Chapter 4 153
USB Failure (Right up/down side)
If the rightside USB port fails, perform the following actions one at a time to correct the problem. Do not
replace non-defective FRUs:
Other Failures
If the VGA board, LAN Port, external MIC or Speakers, PCI Express Card, 5-in-1 Card Reader or Volume
Wheel fail, perform the following general steps to correct the problem. Do not replace non-defective FRUs:
1. Check whether the drive is OK.
2. Verify that the Test Fixture is ok.
3. Swap the main board and retest.
Start
Check USB/B to
M/B cable
Re-assemble the
USB/B cable to M/B
OK
NG
Check USB/B
OK
Swap USB/B and
USB cable
OK
NG
Swap M/B
Start
Check USB/B to
M/B cable
Re-assemble the
USB/B cable to M/B
OK
NG
Check USB/B
OK
Swap USB/B and
USB cable
OK
NG
Swap M/B
- Aspire 1820PT/1420P Series 1
- Service Guide 1
- Revision History 2
- Copyright 3
- Disclaimer 3
- Conventions 4
- Table of Contents 10
- System Specifications 11
- System Block Diagram 13
- Your Notebook Tour 14
- Closed Front View 15
- Left View 16
- Right View 16
- Base View 17
- Rear View 18
- Indicators 18
- TouchPad Basics 19
- Using the Keyboard 20
- Windows Keys 21
- Hot Keys 22
- Special Keys 23
- 22 Chapter 1 32
- System Utilities 33
- Information 34
- Security 36
- Setting a Password 37
- Removing a Password 37
- Changing a Password 38
- BIOS Flash Utility 41
- DOS Flash Utility 42
- WinFlash Utility 43
- Removing BIOS Passwords: 45
- Miscellaneous Utilities 46
- Using the LAN MAC Utility 47
- 38 Chapter 2 48
- Disassembly Requirements 49
- General Information 49
- Chapter 3 49
- Disassembly Process 50
- Removing the Dummy Card 52
- Removing the Battery Pack 52
- Removing the SIM Card 53
- Removing the Module Cover 54
- 46 Chapter 3 56
- Removing the DIMM Module 57
- Removing the WLAN Board 58
- Removing the 3G Module 59
- 50 Chapter 3 60
- 4. Remove the one (1) screw 60
- 5. Remove the 3G module 60
- Main Unit Disassembly Process 61
- Removing the Keyboard 63
- 54 Chapter 3 64
- 4. Unlock the FPC 64
- Removing the Hinge Covers 65
- 56 Chapter 3 66
- 4. Remove the hinge cap 66
- 5. Remove the hinge bezel 66
- Removing the Upper Cover 67
- Chapter 3 59 69
- 8. Pry the front side open 69
- 9. Pry the left side open 69
- 60 Chapter 3 70
- Removing the Button Board 71
- 62 Chapter 3 72
- Chapter 3 63 73
- 64 Chapter 3 74
- 12. Remove the button board 74
- Button Board M2*3 2 74
- Removing the I/O Board 75
- Removing the Bluetooth Module 77
- Removing the LED Board 78
- Chapter 3 69 79
- 5. Remove the LED cable 79
- 70 Chapter 3 80
- 6. Remove the two (2) screws 80
- 7. Remove the LED board 80
- LED Board M2*4 2 80
- Removing the CRT Board 81
- 72 Chapter 3 82
- 5. Turn the CRT board over 82
- 6. Remove the CRT cable 82
- Removing the Mainboard 83
- Chapter 3 75 85
- 12. Remove the CRT cable 85
- Removing the Thermal Module 86
- Removing the RTC Battery 87
- Removing the Speaker Modules 87
- Removing the LCD Module 88
- Chapter 3 79 89
- 5. Remove the LCD module 89
- LCD Module M2*5 5 89
- Removing the LCD Bezel 92
- 84 Chapter 3 94
- Removing the Camera Board 95
- Removing the Microphone 96
- Removing the LCD Panel 96
- Removing the LCD Cable 98
- Chapter 3 89 99
- 90 Chapter 3 100
- Removing the LCD Brackets 101
- Removing the Hinge 103
- Removing the Antennas 104
- Chapter 3 95 105
- 96 Chapter 3 106
- LCD Reassembly Procedure 107
- Replacing the Hinge 108
- Chapter 3 99 109
- Hinge M2*3 3 109
- Replacing the LCD Brackets 110
- Replacing the LCD Cable 111
- 102 Chapter 3 112
- Replacing the LCD Panel 113
- Replacing the Microphone 115
- Replacing the Camera Board 116
- Replacing the LCD Bezel 117
- Chapter 3 109 119
- 7. Insert the stylus 119
- Main Unit Reassembly Process 120
- Chapter 3 111 121
- 3. Turn the LCD module 121
- Replacing the RTC Battery 122
- Replacing the Thermal Module 122
- Replacing the Speakers 123
- 114 Chapter 3 124
- Speaker M2*3 2 124
- Replacing the Mainboard 125
- 116 Chapter 3 126
- 5. Connect the LCD connector 126
- Replacing the CRT Board 127
- Replacing the LED Board 128
- 120 Chapter 3 130
- Chapter 3 121 131
- Replacing the I/O Board 132
- 124 Chapter 3 134
- Replacing the Button Board 135
- 126 Chapter 3 136
- Chapter 3 127 137
- Replacing the Upper Cover 138
- Chapter 3 129 139
- Replacing the Hinge Covers 141
- 132 Chapter 3 142
- 2. Replace the hinge cap 142
- Hinge Covers M2*3 3 142
- Replacing the Keyboard 143
- Replacing the 3G Module 144
- Chapter 3 135 145
- 2. Replace the one (1) screw 145
- 3G Module M2*3 1 145
- Replacing the WLAN Module 146
- Replacing the DIMM 147
- Replacing the Hard Disk Drive 147
- 138 Chapter 3 148
- 3. Adhere the black tape 148
- 4. Replace the HDD FPC 148
- Replacing the Module Cover 149
- 140 Chapter 3 150
- Replacing the SIM Card 151
- Replacing the Battery 151
- Replacing the Dummy Card 152
- Troubleshooting 153
- Power On Issue 154
- No Display Issue 155
- Random Loss of BIOS Settings 156
- LCD Failure 157
- Built-In Keyboard Failure 158
- TouchPad Failure 159
- Internal Speaker Failure 160
- Internal Microphone Failure 161
- HDD Not Operating Correctly 162
- Other Failures 163
- Intermittent Problems 164
- Undetermined Problems 164
- Post Codes 165
- Chapter 5 175
- Mainboard Bottom View 176
- Mainboard CMOS Discharge 177
- BIOS Recovery by Crisis Disk 178
- Exploded Diagram 179
- Chapter 6 179
- Fru List 181
- Appendix A 189
- 192 Appendix A 202
- Test Compatible Components 203
- MS Compatibility Test Report 206
- Appendix B 197 207
- 198 Appendix B 208
- Appendix B 199 209
- 200 Appendix B 210
- Online Support Information 211
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