Acer 720 - page 77

Chapter 3 69

5. Reinsert the CPU board at CN17 of the system board by aligning the CPU

board with the two pillars of the MMO shield as shown below.

6. Use this special tool to press down and completely connect the CPU

board to its socket.

720.book Page 69 Saturday, March 6, 1999 10:00 AM

Contents

Main Copyright Disclaimer Conventions Preface Chapter 1 System Specifications Chapter 2 System Utilities Chapter 3 Removal and Replacement Chapter 4 Troubleshooting Page Page System Specifications Chapter 1 Major Features System Connectivity Display Video Performance Simultaneous Display Dual Display Power Management Opening and Closing the Display Indicators Keyboard Special Keys Page Page Page Chapter 1 9 10 System Specifications I/O Ports Rear Ports Page Page Page 14 System Specifications Hardware Configuration and Specifications Memory Address Map Interrupt channel default assignment Chapter 1 15 DMA channel default assignment I/O address map Interrupt channel default assignment 16 System Specifications Processor BIOS System Memory I/O address map Chapter 1 17 DIMM Memory Combinations Second-Level Cache System Memory 18 System Specifications Video memory Video External CRT Resolutions and Modes Parallel Port Chapter 1 19 Serial Port FIR Parallel Port 20 System Specifications Audio PCMCIA Fax/Modem FIR Chapter 1 21 Keyboard Disk drives Hard disk drives Fax/Modem 22 System Specifications CD-ROM Battery Hard disk drives Chapter 1 23 Charger DC-DC Converter Battery 24 System Specifications DC-AC Inverter LCD DC-DC Converter Chapter 1 25 AC Adapter LCD Page Power Management Power Management Modes Page Page Advanced Power Management Advanced Configuration and Power Interface System Utilities Chapter 2 PhDISK Syntax Notebook Manager Information Viewer Boot Sequence Password Page Power Management Display Device Page Setup Utility Navigating the Setup Utility Page Page Page Page Page Advanced Security Chapter 2 49 Page Power 52 System Utilities Exit Page Chapter 3 Removal and Replacement TravelMate 720 Disassembly Flowchart (13.3 LCD) 720-ch3.fm Page 56 Saturday, March 6, 1999 8:30 AM 56 Removal and Replacement External Module Replacement Page Page Page Page Page Page Page Page Page Page Removing the CPU Page Page Page Page Page Disassembling the Lower Case Removing the Floppy Disk Drive Page Page Page Page Page Page Troubleshooting Chapter 4 Page Diskette Drive Checkout CD-ROM Driver Test Keyboard or Auxiliary Input Device Checkout Memory Checkout Power System Checkout Checking the Battery Pack: TouchPad Checkout Symptom-to-FRU Index Numeric Error Codes 90 Troubleshooting Chapter 4 91 92 Troubleshooting Chapter 4 93 94 Troubleshooting Intermittent Problems Undetermined Problems Utility Program Diskette Setting LCD Panel ID Setting Thermal Sensor Utility Running the Diagnostics Page Page Chapter 4 101 PQA Diagnostics Program Error Codes and Messages Page Jumper and Connector Information Chapter 5 Chapter 5 103 Top V ie w PCB No. 97143 Page FRU (Field Replaceable Unit) List Chapter 6 106 FRU (Field Replaceable Unit) List Chapter 6 107 NS 108 FRU (Field Replaceable Unit) List NS Chapter 6 109 NS 110 FRU (Field Replaceable Unit) List NS Chapter 6 111 NS NS NS NS 112 FRU (Field Replaceable Unit) List Chapter 6 113 NS NS NS NS NS NS 114 FRU (Field Replaceable Unit) List NS Chapter 6 115 NS NS NS Page Chapter 6 117 NS NS NS NS NS NS 118 FRU (Field Replaceable Unit) List NS NS Chapter 6 119 NS NS Page Model Definition and Configuration Appendix A Appendix A 121 TravelMate 720 Model Number Define Page Test Compatible Components List Appendix B 124 Test Compatible Components List PCMCIA PCMCIA, PM Test PCMCIA, Integration/Application Test Appendix B 125 PCMCIA Cards Tested for Year2000 Compliance Page Online Support Information Appendix C Page Index A B C D E F H I J K L M O P R S T U V W Y