Acer Aspire 2920 Aspire 2420, 2920, 2920Z Service Guide - Page 8

Table of Contents Removing the SD dummy card 56 Removing the ExpressCard dummy card 57 Removing the Lower Cover 57 Removing the DIMM 59 Removing the WLAN Board Modules 60 Removing the Hard Disk Drive Module 61 Removing the Optical Drive Module 63 Main Unit Disassembly Process 65 Main Unit Disassembly Flowchart 65 Removing the CPU and VGA Heatsink Module 65 Removing the CPU 67 Removing the Keyboard 69 Removing the LCD Module 70 Separating the Upper Case from the Lower Case 74 Removing the Launch Board 77 Removing theTouch Pad Board Module 78 Removing the main board 80 Removing the Speaker Modules 82 Removing the Modem Board 83 Removing the Bluetooth board 85 LCD Module Disassembly Process 86 LCD Module Disassembly Flowchart 86 Removing the LCD Bezel 87 Removing the LCD module with the Brackets 88 Removing the Inverter Board and FPC Cable 90 Removing the LCD Brackets 92 Removing the Antennas 93 Removing the Internal Microphone and Web Camera 94 Troubleshooting 97 System Check Procedures 98 External Diskette Drive Check 98 External CD-ROM Drive Check 98 Keyboard or Auxiliary Input Device Check 98 Memory check 99 Power System Check 99 Touchpad Check 101 Power-On Self-Test (POST) Error Message 102 Index of Error Messages 103 Phoenix BIOS Beep Codes 106 Index of Symptom-to-FRU Error Message 111 Intermittent Problems 115 Undetermined Problems 116 Jumper and Connector Locations 117 Top View 117 Bottom View 118 Clearing Password Check and BIOS Recovery 119 Clearing Password Check 119 BIOS Recovery by Crisis Disk 120 FRU (Field Replaceable Unit) List 121 Aspire 2920/2920Z/2420 Exploded Diagram 122 Aspire 2920/2920Z/2420 Series 130 VIII