Acer Aspire One AO531h Aspire One AO531h Service Guide - Page 9

Table of Contents Replacing the DIMM Module 136 Replacing the Lower Covers 137 Replacing the SD Dummy Card 138 Replacing the Battery 138 Troubleshooting 139 Common Problems 139 Power On Issue 140 No Display Issue 141 Random Loss of BIOS Settings 142 LCD Failure 143 Built-In Keyboard Failure 143 TouchPad Failure 144 Internal Speaker Failure 144 Internal Microphone Failure 146 HDD Not Operating Correctly 147 USB Failure (Rightside 148 Power Button Failure 148 External Mouse Failure 149 Other Failures 149 Intermittent Problems 150 Undetermined Problems 150 POST Code Reference Tables 151 Sec 151 Memory 151 BDS & Specific action 152 Each PEIM entry point used in 80_PORT 154 Each Driver entry point used in 80_PORT 154 Each SmmDriver entry point used in 80_PORT 158 Jumper and Connector Locations 159 Top View 159 Bottom View 160 Clearing Password Check and BIOS Recovery 161 Clearing Password Check 161 BIOS Recovery by Crisis Disk 162 FRU (Field Replaceable Unit) List 163 Aspire one Exploded Diagrams 164 Main Assembly 164 Base Assembly 165 LCD Assembly 166 Aspire one FRU List 167 Screw List 173 Model Definition and Configuration 174 Aspire one Series 174 Test Compatible Components 183 Windows XP Environment Test 184 Online Support Information 193 Index 195 IX