Table Of Contents - Compaq PRESARIO Presario 1255 Maintenance And Service Manual

Table Of Contents

Before You Begin1
Technician Notes3
Serial Number3
Product Description4
Models & Features5
Controls And Lights6
Front Panel Components6
Left-Side Components7
Right-Side Components8
Rear Connectors10
Power Management11
Power Management Settings12
Display Properties12
Hibernation Mode14
Battery Operating Time15
Troubleshooting18
Preliminary Steps19
Power On Self Test Messages20
Clearing The Power-On Password21
Compaq Diagnostics22
Diagnostic Error Codes23
Troubleshooting Without Diagnostics24
Solving Minor Problems25
Solving Audio Problems25
Solving Hard Drive Problems25
Solving Pc Card Problems26
Solving Power Problems26
Contacting Compaq Support27
Shipping Preparation27
Illustrated Parts Catalog28
System Unit29
Display Assembly31
Mass Storage Devices32
Miscellaneous Cables Kit33
Spare Part Number34
Miscellaneous Parts36
Documentation And Software37
Removal And Replacement Procedures38
Serial Number Location38
Electrostatic Discharge39
Generating Static39
Service Considerations40
Tool And Software Requirements40
Cables And Connectors41
Plastic Parts41
Zif Connectors42
Preparing The Computer For Disassembly47
Removing The Battery Pack48
Replacement Procedures49
Removing The Palmrest Cover With Touch Pad50
Removing The Heatspreader52
Removing The Keyboard53
Removing The Processor54
Removing The Hard Drive57
Removing The Cd Drive60
Removing The Battery Charger Board63
Removing The Modem64
Removing The Display Panel Assembly66
Removing The Upper Cpu Cover71
Removing The Speaker Assembly72
Removing The Diskette Drive73
Removing The Fan Assembly75
Removing The System Board77
Removing The Memory Module82
Physical And Environmental84
Specifications85
System Interrupts85
System Dma86
Memory Expansion90
Battery Pack91
Diskette Drive92
Hard Drives93
Connector Pin Assignments95
Disposing Of A Used Battery Pack96