Acer Extensa 5220 Service Guide for TravelMate 5320, 5720, 5720G, Extensa 5220 - Page 8

Table of Contents External Modules Disassembly Flowchart ...59 Removing the Battery Pack ...60 Removing the SD dummy card ...60 Removing the PC and ExpressCard dummy cards ...61 Removing the Lower Cover ...62 Removing the DIMM ...63 Removing the WLAN Board Modules ...64 Removing the Hard Disk Drive Module ...65 Removing the Optical Drive Module ...66 Main Unit Disassembly Process ...69 Main Unit Disassembly Flowchart ...69 Removing the Modem Board ...70 Removing the Heatsink Fan Module ...70 Removing the CPU and VGA Heatsink Module ...71 Removing the CPU ...73 Removing the VGA board (for Discrete model only) ...73 Removing the Middle Cover and the Power Board ...74 Removing the Keyboard ...76 Removing the LCD Module ...78 Separating the Upper Case from the Lower Case ...81 Removing the Launch Board ...84 Removing theTouch Pad Board Module ...85 Removing the main board ...88 Removing the Speaker Modules ...90 Removing the USB Board ...91 LCD Module Disassembly Process ...93 LCD Module Disassembly Flowchart ...93 Main Screw List ...93 Removing the LCD Bezel...94 Removing the LCD module with the Brackets ...95 Removing the Inverter Board and FPC Cable ...96 Removing the LCD Brackets ...97 Removing the Left and Right Hinge ...97 Removing the Antennas ...98 Removing the Internal Microphone and Web Camera ...99 Troubleshooting 101 System Check Procedures ...102 External Diskette Drive Check ...102 External CD-ROM Drive Check ...102 Keyboard or Auxiliary Input Device Check ...102 Memory check ...103 Power System Check ...103 Touchpad Check ...105 Power-On Self-Test (POST) Error Message ...106 Index of Error Messages ...107 Phoenix BIOS Beep Codes ...110 Index of Symptom-to-FRU Error Message ...115 Intermittent Problems...119 Undetermined Problems ...120 Top View ...121 Jumper and Connector Locations 121 Bottom View ...122 VIII