Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Notice
Preface
Product
Description
Troubleshooting
Illustrated
Parts Catalog
Removal &
Replacement
Procedures
Specifications
Connector Pin
Assignments
Battery Pack
Operations
Click here to download the zip file for the following Maintenance & Service
Guide.
Welcome to the Maintenance & Service Guide (MSG). This online guide is designed to
serve the needs of those whose job it is to repair Compaq products. Many of the
components of the hardcopy MSG are contained in this online guide. The Notice,
contains the copyright and trademark information. The Preface shows symbol
conventions, Technician Notes and Serial Number locations on the unit.
This MSG will be periodically maintained and updated online as needed. For content
comments or questions, contact the
Editor.
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Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Notice
The information in this guide is subject to change without notice.
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Product names mentioned herein may be trademarks and/or registered trademarks of their respective
companies.
Maintenance and Service Guide
Compaq Presario 1600 Series Portable Computers
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First Edition (June 1998)
Compaq Computer Corporation
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Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Preface
This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when servicing the
Compaq Presario 1600 Series Portable Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1600 Series Portable
Computers without notice.
Symbols
The following words and symbols mark special messages throughout this guide.
WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm
or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or
loss of data.
IMPORTANT:
Text set off in this manner presents clarifying information or specific instructions.
NOTE:
Text set off in this manner presents commentary, sidelights, or interesting points of information.
Technician Notes
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WARNING: Only authorized technicians trained by Compaq should repair this equipment. All troubleshooting and repair
procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards
and subassemblies, the user should not attempt to make repairs at the component level or to make modifications to any
printed circuit board. Improper repairs can create a safety hazard. Any indications of component replacement or printed
circuit board modifications may void any warranty
Serial Number
When requesting information or ordering spare parts, the computer serial number should be provided to Compaq. The
serial number is located on the bottom of the computer.
Locating Additional Information
The following documentation is available to support this product:
● Compaq Presario 1600 Series Portable Computer documentation set
● Introducing Windows 98 Guide
● Service Training Guides
● Compaq Service Advisories and Bulletins
● Compaq QuickFind
● Compaq Service Quick Reference Guide
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Pin Assignments|Battery Pack Operations
Product Description
Models and
Features
Controls and
Lights
Left Side
Components
Right Side
Components
Bottom of
Unit
Rear
Connectors
Port Replicator
Power
Management
for Windows
98
Compaq
Presario
1600 Series
Portable
Computer is
a
continuation
of the new
generation
of
multimedia
portable
computers
with an
innovative
integrated
design,
outstanding
audio and
video,
advanced
core
features,
and
attractive
styling. This
fullfunction,
Pentium II -
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based
series of
portable
computers
allows full
desktop
functionality
and
additional
connectivity
via the
optional
port
replicator.
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This section covers troubleshooting information for the
Compaq Presario 1600 Series Portable Computers. The basic
steps in troubleshooting include:
1. Follow the Preliminary Steps.
2. Run the Power-On Self-Test
(POST).
3. Follow the recommended actions
described in the diagnostic tables, if
you are unable to run POST or if
POST displays an error message.
When following the recommended
actions in the Sections on POST and
Diagnostic Error Codes perform them
in the order listed. Rerun POST after
each recommended action until the
problem is solved and no error
message occurs. Once the problem is
solved, do not complete the
remaining recommended actions.
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NOTE:
If the problem is
intermittent, check the
computer several times to
verify that the problem is
solved.
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Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Illustrated Parts Catalog
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Cable Kit
Cables
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
This section provides an breakdown and identifies the spare parts ordering
number associated with each item(s) for the Compaq Presario 1600 Series
Portable Computers.
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Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Connector Pin Assignments
This appendix provides connector pin assignment tables for Compaq Presario 1600 Series Portable
Computers. For more information on connectors, refer to the section on Rear Connectors.
NOTE: The signals in all tables of this appendix are considered active high unless otherwise indicated
by an asterisk (*).
Parallel Connector
PinSignalPinSignal
1Strobe*10Acknowledge*
2Data Bit 011Busy
3Data Bit 112Paper Out
4Data Bit 213Select
5Data Bit 314Auto Linefeed*
6Data Bit 415Error*
7Data Bit 516Initialize Printer*
8Data Bit 617Select In*
9Data Bit 718-25Signal Ground
* = Active low
Serial Connector
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Pins
ConnectorPinSignal
1
2
3
4
5
6
7
8
9
Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Ready to Send
Clear to Send
Ring Indicator
Keyboard/Mouse
ConnectorPinSignal
1
2
3
4
5
6
Data
Not defined
Ground
+5 VDC
Clock
Not defined
External VGA Monitor
ConnectorPinSignal
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Pins
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Red Analog
Green Analog
Blue Analog
Not connected
Ground
Ground Analog
Ground Analog
Ground Analog
Not connected
Ground
Monitor Detect
DDC2B Data
Horizontal Sync
Vertical Sync
DDC2B Clock
Universal Serial Bus
ConnectorPinSignal
1 Ground
2 D+
3 D-
4 Power
Port Replicator
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Pins
PinSignalPinSignalPinSignalPinSignal
1N.C.21Printer Data 0 41N.C.61CTS
2N.C.22Printer Data 142N.C.62DCD
3Kb Clk 123Printer Data 243Switch A63DSR
4Joystick Data A24Printer Data 344Switch B64TXD
5Kb Data 125Printer Data 445Switch C65RTS
6Joystick Data B26Printer Data 546Switch D66N.C.
7Kb Clk 227Printer Data 647N.C.67Detect
8Joystick Data C28Printer Data 748MIDI In68N.C.
9Kb Data 229USB 0 -49MIDI Out69V. Sync
10Joystick Data D30USB 0 +50+5V70Ground
11Lp Select In31USB 1 -51+5V71H. Sync
12Lp Paper End32USB 1+52N.C.72Ground
13Lp Initialize33Adapter In53N.C.73Blue
14Lp Busy34Adapter In54N.C.74Ground
15Lp Error35Adapter In55N.C.75Green
16Lp Ack36Adapter In56Dock ID -76Ground
17Lp Auto Feed37Adapter In57RXD77Red
18Lp Strobe38Adapter In58Lp Select78Ground
19DDC2BC39N.C.59RI79N.C.
20DDC2BD40N.C.60DTR80N.C.
Modem
ConnectorPinSignal
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Pins
1
2
3
4
5
6
Unused
Unused
Tip
Ring
Unused
Unused
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Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Battery Pack Operating Time
This appendix covers the following information concerning battery pack operating time:
● Increase battery pack operating time
● Conditioning a battery pack
● Disposal of a used battery pack
Increasing Battery Pack Operating Time
Battery pack operating time differs depending on several variables. To avoid unnecessary replacement, consider the
following variables when determining how long a charged battery pack should last:
● Power management settings
● Hardware configuration
● Software applications
● Installed options
● Display brightness
● Hard drive usage
● Changes in operating temperature
● Type and number of installed PC Cards
NOTE:
The power consumption requirements for PC Cards vary widely. Some cards drain the battery
pack very rapidly.
Battery pack operating time can be increased by as much as 50 percent by controlling the energy required by the
computer and the energy stored in the battery pack.
Minimizing the Energy Required
To minimize the energy required by the computer, follow these steps:
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