Page
Models and Features
Controls and Lights
Front Bezel Lights
Front Bezel Buttons
Left Side Components
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Notice
First Edition (March 1999)
Compaq Computer Corporation
Maintenance and Service Guide
●Introducing Windows 98 Guide
●Compaq QuickFind
●Compaq Service Quick Reference Guide
Product Description
Page
Troubleshooting
Page
Illustrated Parts Catalog
Page
Removal and Replacement Procedures
Page
Specifications
●Computer models
●Physical and environmental
●System Interrupts
●System DMA
Height
Depth
Width
Weight
Model
IRQ3
Compaq Prosignia 56K-DF
IRQ4
Communications Port (COM1)
IRQ5
System timer
System speaker
Standard 101/102-Keyor Microsoft Natural Keyboard
System CMOS/real time clock
Motherboard resources
x00100000 - x01FFFFFF
x03000000 - x03000FFF
x03001000 - x03001FFF
xFD000000 - xFDFFFFFF
xFEA00000 - xFEBFFFFF
(Information not available)
13.3" (Diagonal) TFT Display with LVDS
U.S. Metric
Dimensions
Diagonal Size
128-MB
160-MB
Memory Expansion for 380-MHzProcessor
192-MB
Diskette Drive
Seek Times
(Typical, Including settling in ms) Track to Track
Average Maximum
Rotational Speed
Transfer Rate
0.74um (DVD)
Laser
.05" / 1.2cm
Beam Divergence
1.0 volts RMS
Fax Modulation
V. 21 (Group III Compatible)
V.27Ter
Command Set
Hayes AT
Connector Pin Assignments
Signal Ground
* = Active low
Serial Connector
Connector
Carrier Detect
Receive Data
Transmit Data
External VGA Monitor
Red Analog
Green Analog
Blue Analog
Not connected
Unused
Tip
Ring
Battery Pack Operating Time
●Increase battery pack operating time
●Conditioning a battery pack
●Disposal of a used battery pack
Increasing Battery Pack Operating Time
●Set the power conservation levels in the Power Management utility to Maximum
Maximizing the Energy Stored
To maximize the energy stored in the battery pack, follow these guidelines:
●Store the battery pack in a cool, dry place when not in use
Conditioning a Battery Pack
Li ion Battery Pack
4.5 hours premature termination
2:50 hrs
Disposal of a Used Battery Pack
CAUTION:
Models and Features
Page
Controls and Lights
Page
Front Bezel Lights
Page
Front Bezel Buttons
Page
Left Side Components
Page
Right Side Components
1.Battery Compartment
2.DVD or CD Drive Manual Eject Hole
3.DVD or CD Drive Eject Button
Page
Bottom of Unit
Page
Rear Connectors
1.AC Adapter
2. Universal Serial Bus
3.Security Slot
4.Serial Port
Page
Power Management for Windows
●Power Management Settings
●Sleep
●Hibernation
●Battery operating time
Tab: Power Schemes:
Tab:
Plugged in
Running on
Batteries
completely
Rebooting After a Lockup
Battery Operating Time
Battery operating time is affected by variables, such as the following:
●Power conservation settings
●Power button
Preliminary Steps
Page
Clearing the Power-onPassword
Page
Power-OnSelf Test (POST)
Running POST
To run POST, complete the following steps:
Turn off the computer, then turn on the computer
Power-On Self-TestMessages
XX000YZZ 201-MemoryError
301-KeyboardError
Keyboard failure
Ensure the keys are not depressed during POST
Reconnect the keyboard with the computer off
Compaq Diagnostics
Computer Checkup (TEST)
View System Information (INSPECT)
5.Select View System Information (INSPECT) from the Diagnostics menu
Operating system
Diagnostic Error Codes
Processor Test Error Codes
Error
Code
Description
Recommended Action
Parallel Printer Test Error Codes
Diskette Drive Test
Serial Test Error Codes
Hard Drive Test Error Codes
Video Test Error Codes
Page
Audio Test Error Codes
TouchPad/Pointing Device Interface Test Error Codes
CD Drive Test Error Codes
Page
CONFIG.SYS
AUTOEXEC.BAT
Solving Minor Problems
Solving Audio Problems
Some common audio problems and solutions are listed in the following table
Solving Audio Problems
Problem
Computer is beeping and battery LED
Battery charge is low
Immediately save any open file(s)
icon is blinking
Then do any one of the following:
Battery pack has partially self- discharged
(10° C to 40° C) Storage: -4°F to 86° F (-20°C to 30° C )
Recharge the battery pack
Solving CD Drive Problems
Solving CD Drive Problems
Drive error has occurred
Run Computer Checkup from the
Compaq Diagnostics diskette
Diskette is not formatted
Format the diskette. At the system
Screen is blank
Screen save was initiated by Power
Management due to lack of user
activity
Press any key or touch the Touch Pad
This display panel has a continuous pattern
Reseat the display cable to the
across it (e.g., a "jailbars" pattern), has a
connections
following until the problem is solved:
Solving Hard Drive Problems
Reading hard drive takes an
System entered Hibernation due to
Give the system time to restore the
unusually long time after restarting
Solving Memory Problems
Solving Memory Problems
Memory count during Power-On Self-Test
Optional memory expansion card
Ensure that the optional memory
(POST) is incorrect
Contacting Compaq Support
Shipping Preparation
Page
System Unit
System Unit
Boards
Assembly
Mass Storage Devices
Page
Boards
Heatspreader
2. Voltage
Convertor
3. Modem
7. System
Memory
(Models: 122700- 1670 and
1.Display
14.1 TFT
2.Display
13.3 TFT
w/LVDS
Mass Storage Devices
Miscellaneous Cables Kit
Miscellaneous Hardware Kit
Hardware Kit
Spare Part Number:
DescriptionQuantity
1 each
Miscellaneous Plastics Kit
Mass Storage
Devices
Cable Kit
Hardware Kit
Page
Miscellaneous Parts
Mass Storage Devices
Miscellaneous Cable Kit
Miscellaneous Hardware Kit
Miscellaneous Plastics Kit
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Maintenance & Service Guide
Electrostatic Discharge
Generating Static
Removing DIPS from vinyl trays
11,500
4,000
Removing DIPS from Styrofoam
14,500
Service Considerations
Tool and Software Requirements
Screws
Page
Cables and Connectors
Cables
●Always handle cables by their connectors
●Avoid bending, twisting, or pulling on the cables
●Handle flex cables with extreme care; they can tear easily
Plastic Parts
Return to Removal & Replacement Procedures
Preparing the Computer for Disassembly
Battery Charger Board
not
Removing the Battery Pack
Upper CPU
Cover
Speaker
Diskette Drive
Fan Assembly
Removing the Palmrest Cover with Touch Pad
Disassembly
Sequence
Electrostatic
Discharge
Upper CPU
2. Close the
Cover
computer and turn
Speaker
Removing the Keyboard
4.Remove the heatspreader
Removing the Heatspreader
4. Remove
two screws
from the
and lift out of
the chassis
Removing the Processor
6.Lift the processor out of the processor chassis slot
Removing the 4.3-GBor 6.4-GBHard Drive
bracket and
Removing the DVD or CD Drive
DVD or CD
Removing the Battery Charger Board
To remove the battery charger board, complete the following steps:
2.Remove the palmrest cover with touch pad
5.Remove the hard drive
and lift out of the chassis
To replace the battery charger board, reverse the previous procedures
When replacing the battery charger board, ensure
NOTE: the pins are aligned with the connector on the system board
Removing the Modem
connector on
Removing the Display Panel Assembly
the backlight
Removing the Upper CPU Cover
6.Remove the display panel assembly
Removing the Speaker Assembly
Page
Removing the Diskette Drive
To remove the diskette drive, complete the following steps:
7.Remove the Upper CPU cover
8.Remove the screw from the diskette drive and lift up the diskette drive
9.Disconnect the diskette drive data cable from the system board
To replace the diskette drive, reverse the previous procedures
Ensure the diskette drive eject lever is properly
NOTE: inserted in the
Removing the Fan Assembly
Page
Removing the System Board
Page
For Models: 1670 and
NOTE: The black area on the dip switch indicates the position of the switch
Return to Removal & Replacement Procedures
Removing the Memory Module
door to the
. Settings 
and SW3 
) on the system board are correct for the computer model and processor voltage marked on the processor chip. If the system board dip switch voltage settings are not correct, damage may occur to the computer and/or system board.