Acer 721TX Service Guide - Page 6

Table of Contents Power 51 Exit 53 Chapter 3 Removal and Replacement External Module Replacement 57 Reassembling the Modem Board 57 Installing Memory 57 Disassembling the CD-ROM Drive 58 Removing the Hard Disk Drive 59 Disassembling the Hard Disk Drive 59 Removing and Replacing the Battery Pack . . 60 Removing the Keyboard 62 Removing the LCD 65 Removing the CPU 68 Disassembling the Upper Case 70 Removing the Speakers 72 Removing the Touchpad Bracket 73 Disassembling the Lower Case 74 Removing the Floppy Disk Drive 74 Disassembling the Fan 75 Removing the System Board 76 Removing the IDE Board 77 Removing the PCMCIA Card 77 Disassembling the LCD 78 Chapter 4 Troubleshooting Diskette Drive Checkout 83 CD-ROM Driver Test 83 Keyboard or Auxiliary Input Device Checkout 84 Memory Checkout 85 Power System Checkout 86 TouchPad Checkout 88 Symptom-to-FRU Index 89 Numeric Error Codes 89 Intermittent Problems 95 Undetermined Problems 96 Utility Program Diskette 97 Setting LCD Panel ID 97 VI