Compaq 1255 - User Manual

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Main Page

Specifications2
Pin Assignments2
Technician Notes6
Serial Number7
Product Description8
Troubleshooting10
Illustrated Parts Catalog12
Removal and Replacement Procedures13
Hard Drives14
Charger Board14
Display Panel14
Speaker Assembly14
Diskette Drive14
Fan Assembly14
System Board14
Dip Switch Settings14
Memory Module14
Physical and Environmental15
Connector Pin Assignments18
Serial Connector19
Universal Serial Bus21
Disposing of a Used Battery Pack24
Models & Features27
Hard Drive28
Controls and Lights30
Volume down31
Left-Side Components33
Right-Side Components35
Power Management37
For Windows37
Rear Connectors38
Preliminary Steps41
Clearing the Power-On Password43
Power-On Self Test (POST)45
Running POST45
Power on Self Test Messages45
Compaq Diagnostics48
View System Information (INSPECT)49
Diagnostic Error Codes51
Recommended Action52
Troubleshooting Without Diagnostics59
Solving Minor Problems61
Solving Audio Problems61
Solving Battery Pack and Battery Gauge Problems62
Solving Diskette and Diskette Drive Problems63
Solving Display Problems64
Solving Hard Drive Problems66
Solving Hardware Installation Problems67
Solving Keyboard/Numeric Keypad Problems67
Solving Memory Problems68
Contacting Compaq Support69
Shipping Preparation69
System Unit71
Display Assembly75
Plastics Kit75
Mass Storage Devices77
Miscellaneous Cables Kit79
Power Cord80
Modem Cables80
Mass Storage80
Cable Kit80
Miscellaneous Parts84
Documentation and Software86
Spare Part Number87
Electrostatic Discharge88
Generating Static88
Service Considerations90
Tool and Software Requirements90
Cables and Connectors91
Plastic Parts91
Preparing the Computer for Disassembly93
Removing the Battery Pack95
Display Panel Assembly96
Removing the Palmrest Cover with Touch Pad97
Removing the Heatspreader99
Removing the Keyboard101
Replacement Procedures102
Removing the Processor103
Battery Charger104
Removing the Hard Drive105
Dip Switch106
Removing the CD Drive107
Removing the Battery Charger Board109
Removing the Modem111
Removing the Display Panel Assembly113
Removing the Upper CPU Cover115
Electrostatic Discharge115
Removing the Speaker Assembly117
The Battery118
Removing the Diskette Drive119
Removing the Fan Assembly121
Cpu Cover122
Removing the System Board123
Removing the Memory Module127
Specifications129
System Interrupts129
System DMA131
System I/O Address132
System Memory Catalog135
Memory Expansion139
Battery Pack140
Diskette Drive142
Hard Drives144

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Compaq 1255 Specifications

General

Brand	Compaq
Model	1255
Category	Laptop
Language	English

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Compaq 1255 - User Manual

Table of Contents

Compaq 1255 Specifications

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