HP Armada 4200 Armada 4100 and 4200 Families of Personal Computers Maintenance - Page 4

Chapter 5 Removal and Replacement Procedures 5.1 Serial Number 5-1 5.2 Disassembly Sequence Chart 5-2 5.3 Preparing the Computer for Disassembly 5-3 5.3.1 Disconnecting the AC Power and External Diskette Drive Bay 5-4 5.3.2 Undocking the Computer 5-5 5.3.3 Battery Packs 5-11 5.3.4 DualBay Battery Pack and Devices 5-13 5.3.4 Pointing Devices 5-16 5.3.5 Hard Drive 5-18 5.3.6 PC Card 5-19 5.4 External Computer Components 5-20 5.4.1 Computer Logo 5-20 5.4.2 Computer Feet 5-21 5.4.3 Handle 5-22 5.5 CPU Base Assembly 5-26 5.5.1 Memory Cover 5-27 5.5.2 Memory Boards 5-28 5.5.3 Lithium Real Time Clock Battery 5-30 5.5.4 CPU Base Cover 5-31 5.5.5 Processor Shield and Board 5-34 5.5.6 CPU Cover and Keyboard Assembly 5-36 5.6 Display Assembly 5-40 5.7 Clutch Assembly Components 5-44 5.7.1 Clutch Cover 5-44 5.7.2 Clutches 5-46 5.8 System Board Components 5-47 5.8.1 System Board 5-47 5.8.2 Ensuring ESD Protection 5-52 5.8.3 Heatsink and Video Chip Heatpipe 5-53 5.9 Frame Components 5-56 5.9.1 Upper PCMCIA Door 5-56 5.9.2 Lower PCMCIA Door 5-59 5.9.3 DualBay Eject Assembly 5-62 5.9.5 PCMCIA Assembly 5-64 5.9.6 PCMCIA Ejector Buttons 5-67 5.9.7 Display Ground Bracket 5-69 Chapter 6 Specifications 6.1 Computer 6-2 6.2 Displays 6-3 6.3 Hard Drives 6-6 Contents vii