Table Of Contents - Compaq 1234 Maintenance & Service Manual

Table Of Contents

Pin Assignments6
Technician Notes6
Serial Number7
Product Description8
Troubleshooting10
Troubleshooting Without Diagnostics10
Solving Minor Problems10
Illustrated Parts Catalog12
Display Assembly12
Plastics Kit12
Miscellaneous Parts12
Removal And Replacement Procedures14
Hard Drives15
Charger Board15
Display Panel15
Fan Assembly15
System Board15
Memory Module15
Specifications16
Physical And Environmental16
System Interrupts17
System Dma18
System I/O Address18
System Memory Catalog19
Memory Expansion21
Battery Pack23
Environmental Requirements23
Connector Pin Assignments24
Universal Serial Bus26
Maximizing The Energy Stored29
Conditioning A Battery Pack29
Models And Features31
Controls And Lights32
Front Bezel Lights32
Left-Side Components34
Right-Side Components35
Power Management Settings39
Power Management Properties39
Display Properties40
Hibernation Mode40
Battery Operating Time42
Preliminary Steps43
Clearing The Power-On Password45
Remove The Modem46
Power-On Self Test (Post)47
Running Post47
Compaq Diagnostics49
Computer Checkup (Test)49
View System Information (Inspect)50
Diagnostic Error Codes52
Replacement Procedures52
Solving Audio Problems60
Solving Battery Pack And Battery Gauge Problems60
Solving Diskette And Diskette Drive Problems62
Solving Display Problems63
Solving Hard Drive Problems65
Solving Hardware Installation Problems66
Solving Keyboard/Numeric Keypad Problems66
Solving Memory Problems67
Contacting Compaq Support68
Shipping Preparation68
System Unit70
Mass Storage Devices76
Miscellaneous Cables Kit77
Power Cord79
Documentation And Software85
Electrostatic Discharge86
Generating Static86
Service Considerations88
Tool And Software Requirements88
Cables And Connectors90
Plastic Parts91
Preparing The Computer For Disassembly92
Diskette Drive93
Removing The Battery Pack94
Removing The Palmrest Cover With Touch Pad96
Speaker Assembly97
Removing The Heatspreader98
Display Panel Assembly99
Removing The Keyboard100
Removing The Processor102
Battery Charger103
Removing The Cd Drive106
Removing The Battery Charger Board108
Removing The Modem110
Removing The Display Panel Assembly112
Removing The Upper Cpu Cover114
Removing The Speaker Assembly116
Removing The Diskette Drive118
Removing The Fan Assembly120
Cpu Cover121
Removing The System Board122
Remove The Fan123
Removing The Memory Module125