Acer KB.I140A.015 Datasheet Page 138
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128 Chapter 4
Power On Issue
If the system doesn’t power on, perform the following actions one at a time to correct the problem. Do not
replace a non-defective FRUs:
Computer Shutsdown Intermittently
If the system powers off at intervals, perform the following actions one at a time to correct the problem.
1. Check the power cable is properly connected to the computer and the electrical outlet.
2. Remove any extension cables between the computer and the outlet.
3. Remove any surge protectors between the computer and the electrical outlet. Plug the computer directly
into a known good electrical outlet.
4. Disconnect the power and open the casing to check the Thermal Unit (see “Thermal Unit Failure” on page
140) and fan airways are free of obstructions.
5. Remove all external and non-essential hardware connected to the computer that are not necessary to
boot the computer to the failure point.
6. Remove any recently installed software.
7. If the Issue is still not resolved, see “Online Support Information” on page 209.
- Aspire 5935 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 16
- Rear View 17
- Left View 17
- Right View 18
- Using the Keyboard 21
- Windows Keys 22
- Hot Keys 23
- Special Key 24
- Using the System Utilities 25
- Item Specification 28
- System Utilities 33
- Information 34
- Advanced 36
- Security 38
- Setting a Password 39
- Removing a Password 39
- Set Supervisor Password 40
- Chapter 2 33 43
- BIOS Flash Utilities 45
- DOS Flash Utility 46
- Chapter 2 37 47
- WinFlash Utility 48
- Using Boot Sequence Selector 51
- Write Product Name to EEPROM 52
- 44 Chapter 2 54
- Disassembly Requirements 55
- Chapter 3 55
- General Information 56
- Removing the Battery Pack 58
- Chapter 3 49 59
- Removing the SD Dummy Card 60
- Removing the Lower Covers 61
- Chapter 3 55 65
- Step Size Quantity Screw Type 65
- HDD Carrier M3*3 4 65
- Removing the DIMM Modules 66
- Removing the WLAN Module 67
- 58 Chapter 3 68
- Main Unit Disassembly Process 69
- Removing the Keyboard 71
- 62 Chapter 3 72
- Removing the Upper Cover 73
- Chapter 3 65 75
- Removing the Media Board 76
- Chapter 3 67 77
- Removing the Launch Board 78
- Chapter 3 69 79
- Removing the Speaker Module 80
- Chapter 3 71 81
- Chapter 3 73 83
- Removing the MIC Board 85
- 78 Chapter 3 88
- Removing the TouchPad Bracket 89
- Removing the LCD Module 91
- 82 Chapter 3 92
- Chapter 3 83 93
- 84 Chapter 3 94
- 86 Chapter 3 96
- Removing the Saddles 97
- 88 Chapter 3 98
- Removing the USB Board 99
- Removing the Subwoofer 100
- Removing the Bluetooth Module 101
- 92 Chapter 3 102
- Removing the Hinge Wells 104
- Removing the Mainboard 105
- Removing the RTC Battery 106
- Removing the VGA/MXM Card 107
- Removing the Thermal Module 108
- Chapter 3 99 109
- Removing the CPU 110
- Replacing the CPU 111
- Replacing the Thermal Module 112
- Replacing the VGA/MXM Card 113
- Replacing the Mainboard 114
- Replacing the Hinge Wells 115
- Replacing the Subwoofer 117
- Replacing the USB Board 117
- Replacing the Saddles 118
- Replacing the LCD Module 119
- Replacing the Upper Case 122
- Chapter 3 113 123
- 114 Chapter 3 124
- 118 Chapter 3 128
- Replacing the Function Board 129
- Replacing the Keyboard 130
- Replacing the Switch Cover 131
- Replacing the WLAN Module 131
- Replacing the DIMM Modules 133
- Replacing the ODD Module 134
- Replacing the Lower Covers 135
- Replacing the SD Dummy Card 136
- Replacing the Battery 136
- Troubleshooting 137
- Power On Issue 138
- No Display Issue 139
- Random Loss of BIOS Settings 140
- LCD Failure 141
- Built-In Keyboard Failure 141
- TouchPad Failure 142
- Internal Speaker Failure 142
- Sound Problems 143
- Internal Microphone Failure 144
- HDD Not Operating Correctly 145
- ODD Failure 146
- Discs Do Not Play 147
- Discs Do Not Burn Properly 147
- Playback is Choppy 147
- Drive Not Detected 148
- Drive Read Failure 148
- Modem Function Failure 149
- Wireless Function Failure 149
- Thermal Unit Failure 150
- External Mouse Failure 150
- Other Failures 151
- Intermittent Problems 152
- Undetermined Problems 152
- Post Codes 153
- Top View 159
- Chapter 5 159
- Bottom View 160
- LS-5011P LCD Backlight Board 161
- LS-5012P Launch Board 162
- LS-5013P Media Board 163
- LS-5014P VR Board 164
- LS-5015P Finger printer Board 165
- LS-5016P USB Board 166
- LS-5017P IO Board 167
- LS-5018P POWER SAVING Board 168
- Chapter 5 159 169
- Item Description 169
- SW1 T/P left button 169
- SW2 T/P right button 169
- JP1 FP FFC Connector 169
- LS-501AP HDMI Board 170
- Clearing Password Check 171
- BIOS Recovery by Crisis Disk 172
- Chapter 6 173
- Main Assembly 174
- Base Assembly 175
- Aspire 5935 Series FRU List 176
- Chapter 6 167 177
- 168 Chapter 6 178
- Chapter 6 169 179
- 170 Chapter 6 180
- Chapter 6 171 181
- Screw List 182
- Chapter 6 173 183
- Appendix A 184
- Appendix A 202 212
- Test Compatible Components 213
- Microsoft 214
- Vista Environment Test 214
- 208 Appendix B 218
- Online Support Information 219
- 210 Appendix C 220
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