Compaq presario 1600xl schematic

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Notice
Preface
Contact

Compaq

Welcome to the Maintenance & Service Guide
(MSG) for the Compaq Presario 1800 Series
Portable Computers. This online guide is
designed to serve the needs of those who
repair Compaq products. 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

Tech Support..

To report a technical problem, contact your
Regional Support Center or IM Help Center.

STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Notice

Preface
Contact

Compaq

Before You Begin

Notice

The information in this guide is subject to change
without notice.

COMPAQ COMPUTER CORPORATION SHALL NOT
BE LIABLE FOR TECHNICAL OR EDITORIAL
ERRORS OR OMISSIONS CONTAINED HEREIN,
NOR FOR INCIDENTAL OR CONSEQUENTIAL
DAMAGES RESULTING FROM THE FURNISHING,
PERFORMANCE, OR USE OF THIS MATERIAL.

This guide contains information protected by
copyright. No part of this guide may be photocopied or
reproduced in any form without prior written consent
from Compaq Computer Corporation.

© 2000 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.

Compaq, Presario 1600 Series Registered U. S.
Patent and Trademark Office.

Microsoft, MS-DOS, and Windows are registered
trademarks of Microsoft Corporation.
Windows 98 and Windows 2000 are trademarks of
Microsoft Corporation.

The software described in this guide is furnished
under a license agreement or nondisclosure
agreement. The software may be used or copied only
in accordance with the terms of the agreement.

Product names mentioned herein may be trademarks
and/or registered trademarks of their respective
companies.

Maintenance and Service Guide

Compaq Presario 1600 Series Portable Computer

First Edition (January 2000)
Compaq Computer Corporation

Top of Page

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Notice

Preface

Contact
Compaq

Before You Begin

Preface

This Maintenance and Service Guide is a troubleshooting guide that
can be used for reference when servicing the Compaq Presario 1800
Series Portable Computers.

Compaq Computer Corporation reserves the right to make changes to
the Compaq Presario 1800 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 commentary,

NOTE:

sidelights, or interesting points of information.

Text set off in this manner presents
clarifying information or specific
instructions.

Technician Notes

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, you should
provide the computer serial number 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 1800 Series Portable Computer

documentation set

● Introducing Windows 98 Guide

● Introducing Windows 2000 Guide

● Service Training Guides

● Compaq Service Advisories and Bulletins

● Compaq QuickFind

● Compaq Service Quick Reference Guide

Top of Page

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left-Side
Components

Right-Side
Components

Products Description

Models and Features

Compaq Presario 1600 Series Portable

Computer Models

Display
Processor

Hard Drive
CD or DVD

Model XL140 Model XL141

12.1 inch TFT 12.1 inch TFT
Celeron 466

MHz w/128
Cache

6.0 GB 6.0 GB
24X CD Drive 6X DVD Drive

Celeron 466
MHz w/128
Cache

Underneath
the Unit

Rear
Connectors

QuikDock
Components

QuikDock
Connectors

Power
Management
for Windows
98

Drive
Diskette Drive

Modem

Networking
Battery
System

Memory
Misc 1

3.5 inch Floppy
Drive

56.0 Kbps
Data/Fax with
PCI

Not Supported Not Supported

3.2 Li-ION 3.2 Li-ION
64 MB PC100 64 MB PC100

TV-Out TV-Out

Model XL142 Model XL143

3.5 inch Floppy
Drive

56.0 Kbps
Data/Fax with
PCI

Display
Processor

Hard Drive
CD or DVD

Drive
Diskette Drive

Modem

Networking

12.1 inch TFT 14.1 inch TFT
Celeron 500

MHz w/128
Cache

6.0 GB 12.0 GB
6X DVD Drive 6X DVD Drive

3.5 inch Floppy
Drive

56.0 Kbps
Data/Fax with
PCI

Not Supported Not Supported

Celeron 500
MHz w/128
Cache

3.5 inch Floppy
Drive

56.0 Kbps
Data/Fax with
PCI

Battery
System

Memory
Misc 1

Display
Processor

Hard Drive
CD or DVD

Drive

3.2 Li-ION 3.2 Li-ION
64 MB PC100 64 MB PC100

TV-Out TV-Out

Model XL144 Model XL145

14.1 inch TFT 14.1 inch TFT
Celeron 466

MHz w/128
Cache

6.0 GB 6.0 GB
6X DVD Drive 6X DVD Drive

Pentium III 500
MHz w/256
Cache

Diskette Drive

Modem

Networking
Battery
System

Memory
Misc. 1

3.5 inch Floppy
Drive

56.0 Kbps
Data/Fax
International
with PCI

Not Supported Not Supported

3.2 Li-ION 3.2 Li-ION
64 MB PC100 64 MB PC100

TV Out TV Out

Model XL146 Model XL147

3.5 inch Floppy
Drive

56.0 Kbps
Data/Fax
International
with PCI

Display

Processor

Hard Drive

CD or DVD
Drive

Diskette Drive

12.1 inch TFT
or

14.1 inch TFT
Pentium III/500

MHz w/256
Cache
or
Celeron 500
MHz w/128
Cache

6.0 GB or

12.0 GB
6X DVD Drive 6X DVD Drive

3.5 inch Floppy

14.1 inch TFT

Pentium III/500
MHz w/256
Cache

12.0 GB

3.5 inch Floppy

Modem

Networking
Battery
System

Memory
Misc 1

Display
Processor

Drive

56.0 Kbps
Data/Fax with
PCI

Not Supported Not Supported

3.2 Li-ION 3.2 Li-ION
64 MB PC100 64 MB PC100

TV-Out TV-Out

Model XL150

14.1 inch TFT
Celeron 533

Drive

56.0 Kbps
Data/Fax-I with
PCI

Hard Drive
CD or DVD

Drive
Diskette Drive

Modem

Networking
Battery
System

MHz w/128
Cache

6.0 GB
6X DVD Drive

3.5 inch Floppy
Drive

56.0 Kbps
Data/Fax with
PCI

Not Supported

3.2 Li-ION
64 MB PC100

Memory
Misc 1

Configure To Order Parts

TV-Out

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

System Unit
Boards
Display

Assembly
Mass Storage

Devices
Miscellaneous

Cable Kit
Miscellaneous

Hardware Kit
Miscellaneous

Plastics Kit
Miscellaneous

Parts Catalog

This section provides a breakdown of
spare parts and identifies the spare part
ordering number associated with each
item for Compaq Presario 1600 Series
Portable Computers.

Parts
CTO Parts
Documentation

and Software

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Physical and
Environmental

System
Interrupts

System DMA
System I/O

Addresses
System

Memory
Catalog

Display
Memory

Expansion
Diskette Drive
Hard Drive

Specifications

This section covers the following specifications of Compaq
Presario 1600 Series Portable Computers.

Physical and Environmental

Computer Specifications

Dimensions

Height
Depth
Width

Weight
with 14.1" TFT Display

Stand-Alone (Battery
Pack)

U.S. Metric

1.63 in

10.38 in

12.20 in

7.15 lbs 3.25 kg

Li-ion 3.2 AHr

4.14 cm

26.36 cm

31.00 cm

CD or DVD
Drive

Battery Pack

Power Requirements

Nominal Operating
Maximum Average
Peak Operating

AC Power Requirements

Operating Voltage
Operating Current
Operating Frequency
Maximum Transient

Temperature

Operating
Non Operating

Relative Humidity (non­condensing)

Operating
Non Operating

W @ 14.8 V
W @ 14.8 V
W @ 14.8 V

100-240 V

0.8/0.4 A RMS
47-63 Hz
Meets IEC801-4 & IEC801-5
1kV for 50 ns

50° to 95 °F

-4° to 140 °F

10% to 90%
5% to 95%

10° to 35 °C

-20° to 60
°C

(tw = 38.7°C max)

Altitude

Operating
Non Operating

Shock
Operating
Non operating

Vibration

Operating
Non Operating

Applicable product safety standards specify
thermal limits for plastic surfaces. Compaq

NOTE:

Explorer Series Portable Computers operate
well within this range of temperatures.

0 to 10,000 ft
0 to 30,000 ft

10 G, 11 ms, half sine
240 G, 2 ms, half sine

0.5 G

1.5 G

0 to 3.05 km
0 to 9.14 km

Top of Page

System Interrupts

System Interrupts

Hardware
IRQ

IRQ0 System Timer IRQ10 SCI IRQ used

IRQ1 Standard

System
Function

101/102-key or

Hardware
IRQ

IRQ11 ACPI IRQ

System
Function

by ACPI Bus

Holder for PCI
Microsoft
Natural
Keyboard

IRQ2 Programmable

Interrupt
Controller

IRQ4 Communications

Port (COM1)

IRQ6 Standard Floppy

Disk Controller

IRQ7 Printer Port

(LPT1)

IRQ Steering

IRQ11 VIA Tech 3038

PCI to USB

Universal Host

Controller

IRQ11 ACPI IRQ

Holder for PCI

IRQ Steering

IRQ11 Compaq PCI

Modem

Enumerator

IRQ12 Synaptics

PS/2

IRQ8 System

CMOS/Real
Time Clock

IRQ9 VIA PCI Audio

Controller

IRQ9 Texas

Instruments PCI­1211 CardBus
Controller

IRQ9 Trident

CyberBlade i1
AGP (51)

TouchPad

IRQ13 Numeric Data

Processor

IRQ14 VIA Bus

Master PCI

IDE Controller

IRQ14 Primary IDE

Controller

(Dual FIFO)

IRQ15 VIA Bus

Master PCI

IDE Controller

IRQ15 Secondary IDE

Controller

(Dual FIFO)

Top of Page

System DMA

System DMA

Hardware
DMA

DMA 2 Standard Floppy Disk

System Function

Controller

DMA 4 Direct memory access

controller

Top of Page

System I/O Addresses

System I/O Addresses

I/O
Address
(Hex)

System Function (Shipping
Configuration)

0000h­000Fh

0020h­0021h

0040h­0043h

0060h­0060h

0061h­0061h

0062h­0062h

0064h­0064h

Direct Memory Access Controller

Programmable Interrupt Controller

System Timer
Standard 101/102-Key or Microsoft

Natural Keyboard
System speaker

ACPI Embedded Controller
Standard 101/102-Key or Microsoft

Natural Keyboard

0066h­0066h

0070h­0075h

0081h­008Fh

00A0h­00A1h

00C0h­00DFh

00F0h­00FFh

0170h­0177h

ACPI Embedded Controller

System CMOS/Real Time Clock

Direct Memory Access Controller

Programmable Interrupt Controller

Direct Memory Access Controller

Numeric Data Processor

VIA Bus Master PCI IDE Controller

0170h­0177h

01F0h­01F7h

01F0h­01F7h

0200h­0207h

02F8h­02FFh

0376h­0376h

0376h­0376h

Secondary IDE controller (dual fifo)

VIA Bus Master PCI IDE controller

Primary IDE controller (dual fifo)

Gameport Joystick

Compaq 56K V.90 HSF Mini PCI Modem

Secondary IDE Controller (Dual FIFO)

VIA Bus Master PCI IDE Controller

0378h­037Fh

03B0h­03BBh

03C0h­03DFh

03E8h­03EFh

03F0h­03F5h

03F6h­03F6h

03F6h­03F6h

Printer Port (LPT1)

Trident CyberBlade i1 AGP (51)

Trident CyberBlade i1 AGP (51)

Symphony Port (COM3)

Standard Floppy Disk Controller

VIA Bus Master PCI IDE Controller

Primary IDE Controller (Dual FIFO)

03F7h­03F7h

03F8h­03FFh

0CF8h­0CFFh

1000h­10FFh

1400h­141Fh

1420h­1427h

1420h­142Fh

Standard Floppy Disk Controller

Communications Port (COM1)

PCI Bus

VIA PCI Audio Controller (WDM)
VIA Tech 3038 PCI to USB Universal

Host Controller
Primary IDE Controller (DUAL FIFO)

VIA Bus Master PCI IDE Controller

1428h­142Fh

1430h­1433h

1434h­1437h

1438h­143Fh

Top of Page

Secondary IDE Controller (DUAL FIFO)

VIA PCI Audio Controller (WDM)

VIA PCI Audio Controller (WDM)

Compaq PCI Modem Enumerator

System Memory Catalog

System Memory Catalog

Memory Address System Function

00000000h­0009FFFFh

000A0000h­000AFFFFh

000B0000h­000BFFFFh

000C0000h­000CBFFFh

000DC000h­000DFFFFh

000E0000h­000FFFFFh

System Board Extension for ACPI
BIOS

Trident CyberBlade i1 AGP (51)

Trident CyberBlade i1 AGP (51)

Trident CyberBlade i1 AGP (51)

System Board Extension for ACPI
BIOS

System Board Extension for ACPI
BIOS

03800000h­03800FFFh

F4000000h­F400FFFFh

F4100000h­F411FFFFh

F4100000h­F57FFFFFh

F4120000h­F412FFFFh

F4800000h­F4FFFFFFh

F5000000h­F57FFFFFh

Texas Instruments PCI-1211
CardBus Controller

Compaq PCI Modem Enumerator

Trident CyberBlade i1 AGP (51)

PCI Standard PCI-to-PCI Bridge

Trident CyberBlade i1 AGP (51)

Trident CyberBlade i1 AGP (51)

Trident CyberBlade i1 AGP (51)

F8000000h­FBFFFFFFh

FFFE0000h­FFFFFFFFh

Display

Top of Page

PCI Standard Host CPU Bridge

System Board Extension for ACPI
BIOS

12.1 inch Diagonal TFT Display with
LVDS

U.S. Metric

Dimensions
Height
Width
Depth

Display
Dimensions

Height
Width

Weight
Contrast Ratio
Brightness

Total Power
Consumption

10.83 in

7.83 in

0.22 in

9.69 in

7.26 in

15.53 oz 440 g
150:1 typ
105 cd/mm^2 (110nits -

MRD1.1)

1.2 to 1.5W typ (Assuming
backlight current of 5.0 mA,

27.5 cm

19.9 cm

0.57 cm

24.6 cm

18.45 cm

Response Time

Refresh Rate

Top of Page

14.1 inch (Diagonal) TFT Display with

Dimensions
Height
Width
Depth

or 100 nits luminance)
30 ms typ (Trise)

20 ms typ (Tfall)
50 ms (Total)

60 Hz

LVDS

U.S. Metric

11.76 in

8.92 in

0.22 in

29.85 cm

22.65 cm

0.57 cm

Display
Dimensions

Height
Width

Weight
Contrast Ratio
Brightness

Total Power
Consumption

Response Time
Refresh Rate

11.26 in

8.44 in

19.94 oz 565 gm
150:1 mini
120 cd/mm^2 (125nits -

MRD1.1)

1.2 to 1.5W typ (Assuming
backlight current of 5.0 mA,
or 100 nits luminance)

50 ms
60 Hz

28.57 cm

21.43 cm

Top of Page

Memory Expansion

Memory Expansion

System
Memory

64-MB none 64-MB
64-MB 32-MB 96-MB
64-MB 64-MB 128-MB

Expansion
Board
Memory

Total
Memory

64-MB 128-MB 192-MB
64-MB 256-MB 320-MB

Top of Page

Diskette Drive

Capacity per Diskette
(High/Low)

Diskette Size
Number of LED Indicators

Diskette Drive

1.44
MB/720KB

3.5"
0

(Read/Write)
Number of Drives Supported
Drive Rotation (rpm)
Transfer Rate (Kbps)
Bytes per Sector
Sectors per Track

(High/Low)
Tracks per Side (High/Low)
Access Times

Track-to-Track (ms)
Average (ms)
Setting Time (ms)
Latency Average (ms)

Cylinders (High/Low)

1
300
500
512
18/9

80

3
94
15
100

80

Number of Read/Write
Heads

Top of Page

Hard Drive

Drive Type 6.0-GB 12.0-GB 18.0-GB
Capacity Per

Drive
Logical

Configuration

Cylinders
Heads
Sectors per track
Bytes per sector

2

Hard Drive

6.0-GB 12.0-GB 18.0-GB

8647
4
190/330
512

11968
6
190/330
512

11968
6
190/330
512

Seek Times
(Typical, Including
settling in ms)
Single track
Average
Full stroke

Transfer Rate At
Interface

Top of Page

CD/DVD Drive

CD/DVD Drive

4
14
24

33.3
MB/s

4
14
24

33.3
MB/s

4
14
24

33.3
MB/s

Dimensions

Weight
Rotational

Speed
Typical

Transfer
Rate

Sustained
Data
Transfer
Rate

Access

6x DVD CD-RW

128 x 129
x 12.7mm

0.28 kg 300 g 0.175 kg
3450 rpm Not

8100 KB/s 2100 KB/s 3600 KB/s

128 x 129
x 12.7 mm

Available

24x CD-

ROM

128 x 129
x 12.7 mm

4225 rpm

Time

Average
Random
Access Time

Spin Up
time

Data Buffer
Capacity

Top of Page

140 ms 150 ms 120 ms

<15 s <10.0 s 2.7 s

512 KB Not

Battery Pack

128 KB

Available

Battery Pack

Type

Dimensions
Height
Length
Width

Weight
Operating

Lifetime

Energy
Nominal Open
Circuit Voltage
Capacity
Power

Temperature

Lithium Ion (Li ion)

0.8 in (20.3 mm)

5.7 in (145 mm)

3.1 in (78.7 mm)

0.90 lb (408.2 g)
2 hr 30 min*

14.4 V
3000 mAH

43.2 WH

Top of Page

Requirements
Operating
Non-operating
Charging

*The battery operating lifetime
changes depending on your power
management settings, system
components, options, and
applications you use.

32° F (0-50° C)

-20° C -60° C
5° C-45° C

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Increasing
battery
pack
operating
time

Conditioning
a battery
pack

Disposing of
a used
battery
pack

Battery Pack Operations

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 Temperatures

● Type and Number of Installed PC Cards

The power consumption requirements for PC

NOTE:

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
guidelines:

● Set the power conservation levels in the Power

Management utility to Maximum.

● Customize the timeout value to work more efficiently with

the applications. The length of battery life depends on the
values selected.

Maximizing the Energy Stored

To maximize the energy stored in the battery pack, follow these
guidelines:

● Condition the battery pack at least every 30 days to

improve overall battery performance.

● Keep a battery pack in the computer when using it with AC

power to supply the battery pack with a constant trickle
charge.

● Store the battery pack in a cool, dry place when not in use.

Top of Page

Conditioning a Battery Pack

CAUTION: To avoid a loss of data, ensure that
all data is saved before discharging a battery
pack.

To condition a battery pack, complete the following steps:

1. Plug in the AC adapter and allow the battery to charge until
the battery charging status icon turns off. Your battery
gauge may show four bars (and Windows may report
100%) before the battery charging status icon turns off. Do
not unplug the AC adapter until the battery charging status
icon disappears.

2. Unplug the AC adapter and allow the battery to drain until
the computer reaches hibernation and turns itself off. Do

not plug in the AC adapter during this process or you
will need to restart with Step No. 1. You may use the

computer while the battery is draining.

3. Plug in the AC adapter and begin using the computer.

The table below shows the approximate battery pack charge
times.

Battery Charge Time

Li-ion Battery Pack Charge Time

Computer On Line
Computer Off Line

4.5 hours
2:50 hrs

Top of Page

Disposing of a Used Battery Pack

In the interest of safeguarding our environment. Compaq
Computer Corporation recommends that nickel metal hydride
(NiMH) and lithium ion (Li-ion) battery packs be recycled.
Battery packs should be handled in accordance with country,
state, province, or local regulations.

CAUTION: Never attempt to open or service a
battery pack. Opening a battery pack not only

Top of Page

damages the pack and makes it unusable, but
also exposes potentially harmful battery
components.

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Parallel
and Serial
Connectors

Keyboard/
Mouse,
Modem,
and Game
Port

S-Video
and
Universal
Serial Bus

Monitor
and TV

Connector Pin Assignments

This section provides connector pin assignment
tables for Compaq Presario 1600 Series Portable
Computers. For additional information on
connectors, refer to the sections on Rear Connectors

and

QuikDock Connectors.

The signals in all tables of this
appendix are considered active

NOTE:

high unless otherwise indicated
by an asterisk (*).

Parallel Connector

Out
QuikDock

Pin Signal Pin Signal

1 Strobe* 10 Acknowledge*
2 Data Bit 0 11 Busy
3 Data Bit 1 12 Paper Out
4 Data Bit 2 13 Select
5 Data Bit 3 14 Auto Linefeed*
6 Data Bit 4 15 Error*
7 Data Bit 5 16 Initialize Printer*
8 Data Bit 6 17 Select In*
9 Data Bit 7 18-25 Signal Ground

* = Active low

Serial Connector

Connector Pin Signal

1
2
3
4
5

Carrier Detect
Receive Data
Transmit Data
Data Terminal
Ready

Top of Page

6
7
8
9

Signal Ground
Data Set Ready
Ready to Send
Clear to Send
Ring Indicator

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

This section explains the removal and
replacement procedures for the computer.

Serial Number Location

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

Report the computer serial number to Compaq
when requesting information or ordering spare
parts. The serial number is located on the
underside of the computer.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly
System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Preliminary
Steps

Clearing the
Power-On
Password

Power-On Self
Test (POST)

Compaq
Diagnostics

Diagnostic
Error Codes

Troubleshooting
Without
Diagnostics

Solving Minor

Troubleshooting

This section covers troubleshooting information for the Compaq
Presario 1800 Series Portable Computers. The basic steps in
troubleshooting include:

Preliminary Steps

1.

2. The

3. 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
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.

Diagnostic Error Codes perform them in the order listed.

Power-On Self-Test (POST)

Problems
Contacting

Compaq
Support

If the problem is intermittent, check the

NOTE:

computer several times to verify that the
problem is solved.

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left-Side
Components

Right-Side
Components

Underneath
the Unit

Rear
Connectors

Products Description

Controls and Lights

1. Display
Release
Latch

2. Display

3. Power

(On/Off)
Button

4.
Keyboard

5.
TouchPad

6.

Integrated
Speakers

7.
TouchPad
Button
(Left)

QuikDock
Components

QuikDock
Connectors

Power
Management
for Windows
98

8. Scroll
Up/Down
Button

9.
TouchPad
Button
(Right)

10. Model
Number

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left-Side
Components

Right-Side
Components

Products Description

Configure To Order Features

Compaq Presario 1600 Series Portable Computer

Configure To Order Features

Display

Processors

System Memory

12.1" TFT (PN: 165532-002)

14.1" TFT (PN: 165532-005)
Celeron 466 FCPGA (PN: 165875-007)

Celeron 500 FCPGA (PN: 165875-004)
Pentium III 500 FCPGA (PN: 165874-001)
Pentium III 600 FCPGA (PN: 165874-007)

100MHz 128SD (64 Down +64 Down) (PN: 165528-003)
100MHz 192SD (64 Down + 128 Up) (PN: 165528-004)

100MHz 64SD (Down) (PN: 165528-001)

Underneath
the Unit

Rear
Connectors

QuikDock
Components

QuikDock
Connectors

Power
Management
for Windows
98

Diskette Drive
CD-ROM/DVD

Drive

Hard Drive

Software

100MHz 96SD (64 Down + 32 Up) (PN: 165528-002)

Standard 3.5" Floppy (PN: 165531-001)

24X CD-ROM Drive (PN: 165529-001)

6X DVD Drive (PN: 165529-003)

CD-RW Drive (PN: 165529-004)

6.0-GB (PN: 165530-004)

12.0-GB (PN: 165530-002)

18.0-GB (PN: 165530-005)

Feature Home Collection (Microsoft) Bundled CD (PN:

171952-001)

Microsoft Office 2000Profes Bundled CD (PN: 171952-

003)

Microsoft Office 2000SBE Bundled CD (PN: 171952-002)

Return to Models and Features

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left-Side
Components

Right-Side
Components

Underneath
the Unit

Rear
Connectors

QuikDock
Components

QuikDock
Connectors

Products Description

Internet Zone Buttons and Lights

1. AC Adapter
Light

2. Cap Lock Light

3. Instant

Internet Access
Button

4. Instant E-Mail
Button

5. My Presario
Instant Access
Button

6. Power Button

7. Instant Search

Button

8. Online
Marketplace
Button (US/Puerto
Rico), Instant
Answer Button
(countries outside
the US)

9. Retail Central
Button (US/Puerto
Rico), Instant E­Commerce Button
(countries outside
the US)

Power
Management
for Windows
98

10. Num Lock
Light

11. Scroll Lock
Light

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left-Side
Components

Right-Side
Components

Products Description

Front Bezel Components

1.
Previous
Track
Button

2. Next
Track
Button

3. Sleep
Status
Icon

4. Power
Status
Icon

5. Battery
Charging
Status
Icon

Underneath
the Unit

Rear
Connectors

QuikDock
Components

QuikDock
Connectors

Power
Management
for Windows
98

6.
DisqPlay
Status
Icon

7. Battery
Gauge

8.
DisqPlay
On/Off
Button

9. Volume
Down
Button

10.Volume
Up Button

11.
Play/Pause
Button

12. Stop
Button

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left-Side
Components

Right-Side
Components

Products Description

Left Side Components with
Diskette Drive

1.

Security Slot

2. CD or DVD

Drive

3. CD or DVD

Drive Eject
Button

4. CD or DVD

Drive Manual
Eject Hole

5. Diskette Drive

6. Diskette Drive

Eject Button

Underneath
the Unit

Rear
Connectors

QuikDock
Components

QuikDock
Connectors

Power
Management
for Windows
98

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left-Side
Components

Right-Side
Components

Underneath

Products Description

Right Side Components

1. Battery
Compartment

2. PC Card
Eject Button

3. PC Card
Slot

4.
Headphone
Jack

5.
Microphone
Jack

6. Modem
Port

the Unit
Rear

Connectors
QuikDock

Components
QuikDock

Connectors
Power

Management
for Windows
98

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left-Side
Components

Right-Side
Components

Products Description

Bottom of Unit

1. Pop-up
Feet

2. Serial
Number

3. Memory
Compartment
Door

4. Speaker
Ports

5. Modem
Door

Bottom of
Unit

Rear
Connectors

QuikDock
Components

QuikDock
Connectors

Power
Management
for Windows
98

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left Side
Components

Right Side
Components

Products Description

Rear Connectors

1.
Keyboard/Mouse
Port

2. AC
Adapter Connector

3. Parallel Port

4. QuikDock
Connector

5. Fan Vent

6. TV Out
Connector

7. VGA External
Monitor Port

Bottom of
Unit

Rear
Connectors

QuikDock
Components

QuikDock
Connectors

Power
Management
for Windows
98

8. Serial Port

9. Universal Serial
Bus Port

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left Side
Components

Right Side
Components

Products Description

QuikDock Components

1.
QuikDock
Interface
Connector

2.
QuikDock
Guide
Posts

Bottom of
Unit

Rear
Connectors

QuikDock
Components

QuikDock
Connectors

Power
Management
for Windows
98

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left Side
Components

Right Side
Components

Bottom of
Unit

Products Description

QuikDock Connectors

1. Universal Serial Bus
Port

2. Universal Serial Bus
Port

3. Power
(AC Adapter)Connector

4. Mouse Port

5. Keyboard Port

6. Parallel Port

7. Game Port

8. Serial Port

9. External Monitor
Port

10. 10/100TX Ethernet

Rear
Connectors

QuikDock
Components

QuikDock
Connectors

Power
Management
for Windows
98

11. S Video

12. (Composite) TV
Out

13. Audio Out

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Models and
Features

Controls and
Lights

Internet
Zone
Buttons and
Lights

Front Bezel
Components

Left Side
Components

Right Side

Products Description

Power Management for Windows 98

The following power management features are available for
conserving AC power and extending battery operating time:

● Power Management Settings

● Low-Power Modes

● Battery Operating Life

● Servicing the Computer (Full Off Mode)

● Rebooting After a Lockup

● Recovering From a Loss of Electrical Power

Power Management Settings

Components
Bottom of

Unit
Rear

Connectors
QuikDock

Components
QuikDock

Connectors

Power
Management
for Windows
98

Differing patterns of computer use determine the level of power
management needed. These power management levels can be
initiated based on the amount of time passed since the last
system activity. System activity examples include keyboard
strokes or mouse movement, DVD/CD playback (while under
program control that monitors Standby), and modem use.

Power Schemes

You may select different settings or Power Schemes through
Power Management from the Control Panel. The default Power
Schemes are Home/Office Desk, Portable/Laptop, and
Always On. You can customize these settings by changing the
following options:

● System Standby: length of inactivity before the computer

goes into Standby mode

● Turn Off Monitor: length of inactivity before the screen

times out and goes blank

● Turn Off Hard Disks: length of inactivity before the hard

drive goes into low power mode

● The setting for the Hard Drive

IMPORTANT:

must be less than or equal to the
setting for the System.

● If the computer is on a network,

Compaq recommends System
Standby be set to Never.

The following table shows the default settings for the each Power
Scheme.

Power Schemes

Always on AC Power Battery Power

System Standby
Turn OFF Monitor
Turn OFF Hard Disks

Portable/Laptop AC Power Battery Power

System Standby
Turn OFF Monitor
Turn OFF Hard Disks

Home/Office Desk AC Power Battery Power

System Standby

Never
15 minutes
1 hour

Never
3 hours
15 minutes

20 minutes

5 minutes
2 minutes
3 minutes

15 minutes
Never
10 minutes

1 minute
Turn OFF Monitor
Turn OFF Hard Disks

15 minutes
30 minutes

2 minutes

10 minutes

Alarms

The computer can be set to alarm when the battery power level
is reduced and/or when it reaches a critical low level. It can also
be set to automatically enter a low-power mode when the
battery reaches a specific power level.

CAUTION: The settings on the Alarms tab have
been preset for the computer to run at its best.
Changing any of these settings could cause
the computer to function improperly. It is
recommended that these settings be left at
their default values.

Alarm Default Alarm Action

Low Battery 10% Notification: Text

Critical Battery 0% Notification: No Action

Top of Page

Low-Power Modes

Alarms

Power Mode: No Action

Power Mode: Hibernation

Compaq Presario 1600 Series Computers have two levels of low­power management: Hibernation and Standby .

Hibernation

Hibernation helps conserve battery life and protect the data. The
computer will automatically enter Hibernation mode when the
battery has little power left or when the computer (operating on
battery power) has been in Standby mode for more than one
hour. As the computer enters Hibernation, it automatically stores
the content of the computer memory to the hard drive before it
shuts down. When the computer comes out of hibernation, it
returns to its previous state.

Activate Hibernation mode by pressing the Power button once.

To restart the computer, press the Power button once. When
the computer enters or wakes from Hibernation mode, it displays
a Progress window.

Standby

Standby mode is a low-power mode, also referred to as Sleep
mode. Selecting Standby mode instead of turning off the
computer when finished allows the computer to wake up faster
than turning it completely off and saves power over the active
(On) mode.

Activate Sleep mode by pressing Fn+F4. Or, click Start, select
the Shut Down option, and click Standby.

CAUTION: While in Standby mode, the
computer will maintain system information and
open files. Unsaved information will be lost if
the computer is turned off prior to system wake­up, or if a power loss occurs while using the AC
adapter.

The following table shows the conditions and indicators for
entering and exiting the various power management modes,

Standby, Hibernation, and Off.

Power Management Modes

Standby Activation Deactivation Indicators

Manual Fn+F4 Key

combination
or click the

Press any
key.

Half-moon
icon
appears on

Time-out
Default

Start button
on the
Windows
Taskbar,
then point to
Shutdown
and click
Standby.

15 minutes if
using battery
power.
Computer
will not
automatically
enter
Standby

the Status
Disqplay2.

mode if
using AC
Power.

* Moon icon appears on status display (1600 Series
only)

Hibernate Activation Deactivation Indicators

Manual Press Power

button once.

Time-out
Default

When
battery is

Press Power
button once.

Power
light is off,
screen is
blank**

low or after
1 hour of
Standby.
Computer
will not
automatically
enter
Hibernation
mode if
using AC
Power.

** Power icon does not appear on status display
(1600 Series only)

OFF Activation Deactivation Indicators

Standard Perform

normal
Windows
shutdown

Press Power
button once.

Power
light is off,
screen is

blank.
using the
Start button

Manual Press and

IMPORTANT:

Top of Page

on the
Windows
Taskbar.

hold down
the Power
button for 4
seconds.

The manual shutdown mode is not
recommended unless the standard
shutdown mode does not work.

Battery Operating Life

Battery operating life is affected by variables such as the
following:

● Power conservation settings

● Hardware configuration

● Software applications

● Installed options

● Display brightness

● Hard drive usage

● Changes in operating temperature

● Type and number of installed PC Cards

For more information on increasing battery pack operating time,
conditioning the battery pack, and disposing of a used battery
pack, refer to

Battery Pack Operations.

Top of Page

Servicing the Computer - Full Off Mode

The computer must be turned off completely when installing or
replacing components in the system. Follow the instructions
above for properly putting the computer into Off mode, unplug
from the outlet, and remove the battery (

see Battery Pack

Removal Sequence).

Top of Page

Rebooting After a Lockup

To reboot the computer (as if from a cold start), when the
keyboard is frozen or the screen is locked, press and hold down
the Power button for at least four seconds, which will cause a
manual shutdown. Then, restart it with a single press of the
Power button. If it still does not recover, press the Power
button and hold for four seconds to shut it down, then remove
the battery or unplug the AC power for at least 30 seconds.
Reinsert the battery or reconnect AC power and press the
Power button once to reboot.

Top of Page

Recovering From a Loss of Electrical Power

Loss of electrical power will cause the Internet PC to
automatically turn off. This may cause loss of data because the
Microsoft Windows operating system is not able to properly close
all files and programs.

Loss of power may be caused by one of the following:

● Electrical power service is interrupted.

● The power cord is accidentally disconnected.

If power surges or sags, the display and status lights may
flicker, and the computer may automatically restart. If an
improper shutdown occurs, ScanDisk, a Microsoft Windows utility
program, will automatically run once power is restored. ScanDisk
will determine if the improper shutdown caused any errors on
the hard disk. These errors may occur if the Microsoft Windows
operating system was not able to properly close all files before
the shutdown. If no errors are found, the restart process will
continue. If ScanDisk does detect errors, follow the instructions
shown to continue the restart process. Work that was not saved
prior to the lockup may be lost.

Use of a surge suppressor, line conditioner, or uninterruptible
power supply (UPS) may protect the computer from damage
caused by power surges or sags.

If a power failure occurs or the power cord disconnects while the
computer is turned on, turn off the computer until normal
service has been restored. ScanDisk may run to check the hard
disk for errors caused by the improper shutdown the next time
the computer turns on.

Top of Page

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

System Unit

Boards
Display

Assembly
Mass Storage

Devices
Miscellaneous

Cable Kit
Miscellaneous

Hardware Kit
Miscellaneous

Plastics Kit
Miscellaneous

Parts

Parts Catalog

System Unit

Spare Part Items

1. Keyboards
170090-xxx
US-001
NL -331
FR -051
UK -031
GR -041
FR -051
IT -061
DEN-081
NO-091
SE-101
LA-161
SG-311
NL-331
BEL-381

CTO Parts
Documentation

and Software

JP-291

2. Palmrest Cover

w/TouchPad and
Button Board

159490-001

3. Upper CPU Cover
159492-001

4. Speakers

w/Enclosure &
Cables

159494-001

5. Enclosure Base
159491-001

6. Battery Pack

LION Enhanced

138184-001

7. Button Board

Cover

(not shown)
159493-001

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

System Unit

Boards

Display
Assembly

Mass Storage
Devices

Miscellaneous
Cable Kit

Miscellaneous
Hardware Kit

Miscellaneous
Plastics Kit

Miscellaneous
Parts

CTO Parts

Parts Catalog

Boards

Spare Part Items

1. Heatspreaders
159501-001
174042-001

2. Battery Charger

Board

352891-001

3. Fan Assembly
159500-001

4. Processors Celeron

466MHz w/128K
Cache

161491-001

Celeron 500MHz
w/128K Cache

159484-001

Documentation
and Software

Pentium III
500MHz w/256K
Cache

161492-001

Pentium III
600MHz w/256
Cache

159485-001

Pentium III
650MHz w/256
Cache

175308-001

5. Internet Switch

Board

159495-001

6. LCD Indicator

Module

138187-001

7. Memory (SO Dimm)
122699-001 (32MB,
PC100)
122700-001 (64MB,
PC100)
123930-001 (128MB)

8. System Boards I/O
w/64MB SDRAM (Not
Shown)
159483-001

9. Modems K-56K
Data/Fax w/o SRAM
(Not Shown)
171280-001 (US)
159502-001 (Int'l)
159502-011 (AU)

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

System Unit
Boards

Display
Assembly

Mass Storage
Devices

Miscellaneous
Cable Kit

Miscellaneous
Hardware Kit

Miscellaneous
Plastics Kit

Miscellaneous

Parts Catalog

Display Assembly

Spare
Part
Items

Display
Panel

12.1"

TFT/LVDS

170091­001

Display
Panel

14.1"

TFT/LVDS

159486­001

Parts
CTO Parts
Documentation

and Software

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

System Unit
Boards
Display

Assembly

Mass Storage
Devices

Miscellaneous
Cable Kit

Miscellaneous
Hardware Kit

Miscellaneous
Plastics Kit

Miscellaneous

Parts Catalog

Mass Storage Devices

Spare Part
Items

1. Hard Drives
PN's: 170087­001 (6-GB)
170086­001 (12-GB)

2. 1.44-MB

Diskette
Drive

PN: 159496­001

3. DVD Drive
PN's: 159488­001 (6X)

Parts
CTO Parts
Documentation

and Software

CD-ROM
Drive 24X

(not shown)
PN: 159487

4. CD-R/W

Drive

(not shown)
PN: 170085­001

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

System Unit
Boards
Display

Assembly
Mass Storage

Devices

Miscellaneous
Cable Kit

Miscellaneous
Hardware Kit

Miscellaneous
Plastics Kit

Miscellaneous
Parts

CTO Parts

Parts Catalog

Miscellaneous Cable Kit

Spare Part

Items

Miscellaneous
Cable Kit*

PN: 159497-001
Kit includes one

each of the
following:

1. Hard Drive

Cable

2. CD/DVD Drive

Cable

3. Diskette Drive

Cable

4. Status Panel

Cable

Documentation
and Software

5. CD (DVD)

Cable

(not applicable)

6. Modem Cable
(not shown)

7. TouchPad

Cable

(not shown)

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

System Unit
Boards
Display

Assembly
Mass Storage

Devices
Miscellaneous

Cable Kit

Miscellaneous
Hardware Kit

Miscellaneous
Plastics Kit

Miscellaneous
Parts

CTO Parts

Parts Catalog

Miscellaneous Hardware Kit

Spare Part Items

Miscellaneous
Hardware Kit

159499-001
Kit includes one each

of the following:

1. Hard Drive
Mounting Bracket
(right)

2. Hard Drive
Mounting Bracket
(left)

3. Reinforcement
Bracket

Documentation
and Software

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

System Unit
Boards
Display

Assembly
Mass Storage

Devices
Miscellaneous

Cable Kit
Miscellaneous

Hardware Kit

Miscellaneous
Plastics Kit

Miscellaneous
Parts

Parts Catalog

Miscellaneous Plastics Kit

Spare Part Items

Miscellaneous
Plastics Kit

PN: 159498-001
Kit includes one each

of the following
unless quantity
stated:

1. Battery Pack

Door

2. Memory Module

Cover

3. PCMCIA Door

4. Display Hinge
Cover (Right)

CTO Parts
Documentation

and Software

5. Display Hinge
Cover (Left)

6. CD Drive Guide

7. Latch (Right)
10 each

8. Latch (Left)
10 each

9. Stand-foot
10 each

10. Rubber Foot
10 each

11. Rubber Plug
(Side Mount for

14.1 inch Display)
10 each

12. Rubber
Plug(not
applicable to 1600
Series)

13. Cover, LCD FPC

14. Rubber Plug,
LCD(not shown)
10 each

15. Thin Rubber
Plug, LCD (14.1
inch Display)(not
shown)
10 each

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

System Unit
Boards
Display

Assembly
Mass Storage

Devices
Miscellaneous

Cable Kit
Miscellaneous

Hardware Kit
Miscellaneous

Plastics Kit

Miscellaneous
Parts

CTO Parts
Documentation

and Software

Parts Catalog

Miscellaneous Parts

Spare Part

Items

1. AC Adapter
PN: 298239-001

AC Adapter
APD

(not shown)
PN: 164854-001

2. QuikDock
138167-001

3. Misc. Screw

Kit

(not shown)
138161-001

4. Logo Kit
(not shown)
169610-001

5. Return Kit
(not shown)
138166-001

6. AC Power

Cords:

(not shown)

N. America

PN: 293831-001

Intl (3-Wire)

PN: 170513-002

UK (3-Wire)

PN: 170513-031

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

System Unit
Boards
Display

Assembly
Mass Storage

Devices
Miscellaneous

Cable Kit
Miscellaneous

Hardware Kit
Miscellaneous

Plastics Kit
Miscellaneous

Parts Catalog

Documentation and Software

Spare Parts

Items Part Number

Win98 2nd Edition
Manual Kit

Win2000 Professional
Manual Kit

Emergency Recovery
CD Kit

QuickRestore Kit 169300-001
Win98 Reference

146642-001

164286-001

157296-002

117894-003

Parts
CTO Parts

Documentation
and Software

Guide
Features Guide 120223-001
Quick Reference Guide Information Not

Available

QuickFind for
Windows*

*QuickFind is updated monthly. To complete the
QuickFind part number, add the suffix from the
table below for the desired month. If you do not
specify the 3-digit suffix, the default is the
current month in which the order is placed.

QuickFind Part Number Suffix

Month Suffix Month Suffix

January -001 July -007

Information Not
Available

February -002 August -008
March -003 September -009
April -004 October -010
May -005 November -011
June -006 December -012

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Parallel
and Serial
Connectors

Keyboard/
Mouse,
Modem,
and Game
Port

S-Video
and
Universal
Serial Bus

Monitor
and TV
Out

Connector Pin Assignments

This section provides connector pin assignment
tables for Compaq Presario 1600 Series Portable
Computers. For additional information on
connectors, refer to the sections on Rear

Connectors and QuikDock Connectors.

The signals in all tables of
this appendix are considered

NOTE:

active high unless otherwise
indicated by an asterisk (*).

External VGA Monitor

Connector Pin Signal

QuikDock

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
+5V
Ground
Monitor Detect
DDC2B Data
Horizontal
Sync
Vertical Sync
DDC2B Clock

TV Out

Connector Pin Signal

1
2
3

Top of Page

Ground
Composite
Ground

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Parallel
and Serial
Connectors

Keyboard/
Mouse,
Modem,
and Game
Port

S-Video
and
Universal
Serial Bus

Monitor
and TV

Connector Pin Assignments

This section provides connector pin assignment tables for Compaq
Presario 1600 Series Portable Computers. For additional
information on connectors, refer to the sections on Rear Connectors

and

QuikDock Connectors.

The signals in all tables of this appendix are

NOTE:

considered active high unless otherwise
indicated by an asterisk (*).

QuikDock Connector

Out

QuikDock

Pin Signal Pin Signal Pin Signal Pin Signal

1 Adapter

Power

2 Adapter

Power

3 Adapter

Power

4 Adapter

Power

5 Adapter

Power

22 Serial Port

DCD

23 Serial Port

DSR

24 Serial Port

TXD

25 Serial Port

RTS

26 Monitor

DDC

43 Keyboard

Clock

44 Keyboard

Data

45 Mouse Clock 66 USB Power

46 Mouse Data 67 USB Power

47 Lp Select 68 USB Power

64 MIDI

Output

65 Headphone

Sense

6 Adapter

Power

7 Not

Connected

8 Printer Data 029 V. SYNC 50 Lp Busy 71 USB A+

9 Printer Data 130 Ground 51 Lp Error 72 USB B-

10 Printer Data 231 H.SYNC 52 Lp

11 Printer Data 332 Ground 53 Lp AutoFeed 74 5V

12 Printer Data 433 Blue 54 Lp Strobe 75 5V

27 Monitor

DDC

28 Monitor

Indicator

48 Lp Paper

End

49 Lp Initialize 70 USB A-

Acknowledge

69 USB Power

73 USB B+

13 Printer Data 534 Ground 55 Joystick

Data A

14 Printer Data 635 Green 56 Joystick

Data B

15 Printer Data 736 Ground 57 Joystick

Data C

16 Lp Indicator 37 Red 58 Joystick

Data D

17 QuikDock

Indicator

18 Serial Port

RXD

19 Serial Port RI40 Line Out

38 Ground 59 Switch A 80 Ground

39 Composite

TV Out

Right

60 Switch B 81 Ground

61 Switch C 82 Ground

76 Line Out

Left

77 S-Video

SYR

78 Ground

79 S-Video

SCG

20 Serial Port

DTR

21 Serial Port

CTS

Top of Page

41 Line Out

Present

42 Power

Cycle

62 Switch D

63 MIDI Input

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Parallel
and Serial
Connectors

Keyboard/
Mouse,
Modem,
and Game
Port

S-Video
and
Universal
Serial Bus

Monitor
and TV

Connector Pin Assignments

This section provides connector pin
assignment tables for Compaq Presario 1600
Series Portable Computers. For additional
information on connectors, refer to the
sections on Rear Connectors and QuikDock

Connectors.

The signals in all tables of
this appendix are
considered active high

NOTE:

unless otherwise
indicated by an asterisk
(*).

Out
QuikDock

S Video

Connector Pin Signal

1
2
3
4

Ground
Ground
SYR
SCG

Universal Serial Bus

Connector Pin Signal

1
2
3
4

+5V
Data ­Data +
Ground

Top of Page

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Parallel
and Serial
Connectors

Keyboard/
Mouse,
Modem,
and Game
Port

S-Video
and
Universal
Serial Bus

Monitor
and TV
Out

QuikDock

Connector Pin Assignments

This section provides connector pin assignment
tables for Compaq Presario 1800 Series Portable
Computers. For additional information on
connectors, refer to the sections on Rear

Connectors and QuikDock Connectors.

The signals in all tables of this
appendix are considered active

NOTE:

high unless otherwise indicated
by an asterisk (*).

Keyboard/Mouse

Connector Pin Signal

1
2
3
4
5
6

Data 1
Data 2
Ground
+5 V
Clock 1
Clock 2

Modem

Connector Pin Signal

1
2
3
4
5
6

Unused
Tip
Ring
Unused
Unused
Unused

Game Port

Connector Pin Signal

1
2
3
4
5
6
7
8
9
10
11
12
13

+5V
SWA
RBTA
GND
GND
RBTB
SWB
+5V
+5V
SWC
RBTC
RMSO
RBTD

Top of Page

14
15

SWD
RMSI

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Electrostatic Discharge

A sudden discharge of static electricity from a finger or other
conductor can destroy static-sensitive devices or
microcircuitry. Often the spark is neither felt nor heard, but
damage occurs. An electronic device exposed to electrostatic
discharge (ESD) may not seem to be affected at all and will
work perfectly throughout a normal cycle. Although, it may
function normally for a while, it may be degraded in the
internal layers, reducing its life expectancy.

Networks built into many integrated circuits provide some
protection, but in many cases, the discharge contains enough

power to alter device parameters or melt silicon junctions.

Palmrest Cover
with TouchPad

Keyboard
QuikDock
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

Generating Static

The table shows activities that generate static electricity and

the associated electrostatic voltage level.

Typical Electrostatic Voltages

Relative Humidity

Event

10% 40% 55%

Walking across carpet 35,000 V 15,000 V 7,500 V
Walking across vinyl floor 12,000 V 5,000 V 3,000 V
Motions of bench worker 6,000 V 800 V 400 V
Removing DIPS from plastic

2,000 V 700 V 400 V

tubes

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

Removing DIPS from vinyl
trays

Removing DIPS from
Styrofoam

Removing bubble pack from
PCBs

Packing PCBs in foam-lined
box

NOTE:

700 volts can degrade a product.

11,500 V 4,000 V 2,000 V

14,500 V 5,000 V 3,500 V

26,000 V 20,000 V 7,000 V

21,000 V 11,000 V 5,000 V

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack
Palmrest Cover

Removal Sequence

Service Considerations

Listed below are some of the considerations that

you should keep in mind during the disassembly

and assembly of the computer.

Tool and Software Requirements

You will need the following items to service the

computer:

● Torx T-8 or T-9 screwdriver

● 5mm nut drivers (for screwlocks and

standoffs)

● Small standard screwdriver

with TouchPad
Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor
CD or DVD

Drive

● Small Phillips screwdriver

● Diagnostics software

Screws

The screws used in the computer are not

interchangeable. If an incorrect screw is used

during the reassembly process, it can damage

the unit. Compaq strongly recommends that all

screws removed during disassembly be kept with

the part that was removed, then returned to their

proper locations.

As each subassembly
is removed from the
computer, it should be

IMPORTANT:

placed away from the
work area to prevent

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly
System Board

damage.

Memory
Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Cables and Connectors

Most cables used throughout the unit are ribbon

cables. Cables must be handled with extreme

care to avoid damage. Apply only the tension

required to seat or unseat the cables during

insertion or removal from the connector. Handle

cables by the connector whenever possible. In all

cases, avoid bending, twisting, or tearing the

cables, and ensure that the cables are routed in

such a way that they cannot be caught or

snagged by parts being removed or replaced.

Cables

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor
CD or DVD

Use the following precautions when handling cables to avoid

damage to the cable or computer:

● Always handle cables by their connectors.

● Avoid bending, twisting, or pulling on the cables.

● Apply minimum required force when seating or

unseating the cables from their connectors.

● Place the cables in such a manner that they cannot be

caught or snagged by parts being removed or replaced.

● Handle flex cables with extreme care; they can tear

easily.

CAUTION: When servicing
these computers, ensure that
cables are placed in their
proper location during the
reassembly process. Improper
cable placement can cause
severe damage to the unit.

Drive
Display Panel

Assembly
Upper CPU

Cover
Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly
System Board

The following illustrations show the proper

placement for each cable:

● ZIF connector cable

● Hard drive ribbon cable

● CD or DVD drive ribbon cable

● Diskette drive ribbon cable

● Speaker Assembly cable

● Modem cable

● Keyboard ribbon cable

Connectors and Plastic Parts

Plastic parts can be damaged by the use of excessive force

during disassembly and reassembly. When handling the

plastic parts, use care. Apply pressure only at the points

designated in the maintenance instructions.

Memory
Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest Cover

Removal Sequence

Cables and Connectors

ZIF Connectors

The computer uses zero insertion force (ZIF) connectors on the

system board.

CAUTION: A ZIF connector and its attached
cable can be easily damaged. Handle only the
connector slide when removing or replacing a
cable. Never pull or twist on the cable while it
is connected.

with TouchPad
Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

To remove a cable from a ZIF connector, lift both corners of

the ZIF connector and slide simultaneously with constant light

force.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

CAUTION: When servicing this computer,
ensure that cables are placed in their proper
location during the reassembly process.
Improper cable placement can damage the
computer.

Return to

Cables and Connectors

Other cables illustrations:

System Board
Memory

Module

● ZIF connector cable

● Hard drive ribbon cable

● CD or DVD drive ribbon cable

● Diskette drive ribbon cable

● Speaker Assembly cable

● Modem cable

● Keyboard ribbon cable

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest Cover

Removal Sequence

Cables and Connectors

Hard Drive Ribbon Cable

The ribbon cable position for the hard drive is shown below.

with TouchPad
Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor
CD or DVD

CAUTION: When servicing this computer,
ensure that cables are placed in their proper
location during the reassembly process.
Improper cable placement can damage the
computer.

Return to

Cables and Connectors

Other cables illustrations:

Drive
Display Panel

Assembly
Upper CPU

Cover
Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly
System Board

● ZIF connector cable

● Hard drive ribbon cable

● CD or DVD drive ribbon cable

● Diskette drive ribbon cable

● Speaker Assembly cable

● Modem cable

● Keyboard ribbon cable

Memory
Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest Cover

Removal Sequence

Cables and Connectors

CD or DVD Ribbon Cable

The ribbon cable position for the CD or DVD drive is shown

below.

with TouchPad
Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

Return to

CAUTION: When servicing this computer,
ensure that cables are placed in their proper
location during the reassembly process.
Improper cable placement can damage the
computer.

Cables and Connectors

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

Other cables illustrations:

● ZIF connector cable

● Hard drive ribbon cable

● CD or DVD drive ribbon cable

● Diskette drive ribbon cable

● Speaker Assembly cable

● Modem cable

● Keyboard ribbon cable

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest Cover

Removal Sequence

Cables and Connectors

Diskette Drive Ribbon Cable

The ribbon cable position for the diskette drive is shown below.

with TouchPad
Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

CAUTION: When servicing this computer,
ensure that cables are placed in their proper
location during the reassembly process.
Improper cable placement can damage the
computer.

Return to

Cables and Connectors

Other cables illustrations:

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

● ZIF connector cable

● Hard drive ribbon cable

● CD or DVD drive ribbon cable

● Diskette drive ribbon cable

● Speaker Assembly cable

● Modem cable

● Keyboard ribbon cable

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest Cover

Removal Sequence

Cables and Connectors

Speaker Assembly Cable

The cable position for the speaker assembly is shown below.
The cable is routed under the battery charger board and under
the edge of the system board.

with TouchPad
Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

CAUTION: When servicing this computer,
ensure that cables are placed in their proper
location during the reassembly process.
Improper cable placement can damage the
computer.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

Return to

Cables and Connectors

Other cables illustrations:

● ZIF connector cable

● Hard drive ribbon cable

● CD or DVD drive ribbon cable

● Diskette drive ribbon cable

● Speaker Assembly cable

● Modem cable

● Keyboard ribbon cable

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest Cover

with TouchPad
Keyboard

Removal Sequence

Cables and Connectors

Modem Cable

The modem does not have cables.

Return to
Other cables illustrations:

● ZIF connector cable

● Hard drive ribbon cable

● CD or DVD drive ribbon cable

● Diskette drive ribbon cable

● Speaker Assembly cable

● Modem cable

● Keyboard ribbon cable

Cables and Connectors

Status/Internet
Zone Cover

Internet
Button Board

Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor
CD or DVD

Drive
Display Panel

Assembly
Upper CPU

Cover
Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest

Removal Sequence

Cables and Connectors

Keyboard Ribbon Cable

The ribbon cable position for the keyboard is shown below.

Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

CAUTION: When servicing this computer,
ensure that cables are placed in their proper
location during the reassembly process.
Improper cable placement can damage the
computer.

Return to

Cables and Connectors

Other cable illustrations:

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker

● ZIF connector cable

● Hard drive ribbon cable

● CD or DVD drive ribbon cable

● Diskette drive ribbon cable

● Speaker Assembly cable

● Modem cable

● Keyboard ribbon cable

Assembly
System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Preparing the Computer for
Disassembly

Before beginning Removal & Replacement

Procedures, complete the following steps:

1. Disconnect AC power and any external
devices.

Remove the QuikDock.

2.

3. Remove the battery pack.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module

4. Remove any PC Cards.

The battery pack
should be removed

IMPORTANT:

WARNING: Metal objects can
damage the battery pack as well
as the battery contacts in the
battery compartment. To prevent
damage, do not allow metal
objects to touch the battery
contacts. Place only the battery

before performing any
internal maintenance
on the computer.

Processor
CD or DVD

Drive
Display Panel

Assembly
Upper CPU

Cover
Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

pack for the Compaq Presario
1600 Series Portable Computers
into the battery compartment. Do
not force the battery pack into
the bay if insertion does not
occur easily.

CAUTION: Do not crush,
puncture, or incinerate the
battery pack. Do not open a
battery pack, as this damages
the pack, makes it unusable, and
exposes potentially harmful
battery components. There are
no field-serviceable parts located

inside the battery pack.

Assembly
System Board
Memory

Module

The Compaq Presario 1600
Series Portable Computers
have several screws of various
sizes which are not
interchangeable. Care must be
taken during reassembly to

NOTE:

ensure that the correct screws
are used in their correct
location. During removal
please keep respective screws
with their associated sub­assembly.

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock

Battery Pack

Removal Sequence

Removing the QuikDock

To remove the QuikDock, complete the following
steps:

1. Lift up the handle on top of the QuikDock.

2. Lift the computer straight up.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor
CD or DVD

Drive
Display Panel

Assembly
Upper CPU

Cover
Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly
System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock

Battery Pack

Removal Sequence

Removing the Battery Pack

To remove the battery pack, complete the following steps:

1. Slide the battery
pack compartment
door down and
remove it from the
chassis.

2. Pull the battery
pack from the
chassis by the tab
located on the end
of the battery

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

IMPORTANT:

WARNING: Metal objects can damage the battery
pack as well as the battery contacts in the battery
compartment. To prevent damage, do not allow
metal objects to touch the battery contacts. Place

pack.

To replace the
battery pack, reverse
the previous
procedures.

The battery pack should be removed
before performing any internal
maintenance on the computer.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

only the battery pack for the Compaq Presario
1800 Series Portable Computers into the battery
compartment. Do not force the battery pack into
the bay if insertion does not occur easily.

CAUTION: Do not crush, puncture, or incinerate
the battery pack. Do not open a battery pack, as
this damages the pack, makes it unusable, and
exposes potentially harmful battery components.
There are no field-serviceable parts located inside
the battery pack.

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Palmrest Cover with
TouchPad

It is not necessary to remove the display panel

NOTE:

To remove the palmrest cover with TouchPad,
complete the following steps:

assembly to access the interior components of
the computer.

Prepare the computer for disassembly.

1.

2. Close the display assembly and turn the

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

computer upside down.

3. Remove four screws from underneath the
computer and 1 screw from the right-side of
the computer.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

Next Step

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Palmrest Cover with
TouchPad, continued

4. Turn the computer right side up.

5. Pull the display release latches and open the
display assembly.

6. Lift up the front end of the Palmrest Cover with
TouchPad and remove it from the groove in the
chassis.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

Previous Step

Next Step

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Palmrest Cover with
TouchPad, continued

7. Disconnect the flex cable from the ZIF connector
on the DisqPlay Module.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

To replace the Palmrest Cover with TouchPad, reverse
the previous procedures.

Previous Step

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Keyboard

To remove the keyboard, complete the following
steps:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Gently lift up the front of the keyboard and
disconnect the flex cable from the ZIF
connector on the system board and remove the
keyboard.

Palmrest Cover
with TouchPad

Keyboard

Status/Internet
Zone Cover

Internet
Button Board

Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor
CD or DVD

Drive
Display Panel

Assembly
Upper CPU

Cover
Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

To replace the keyboard, reverse the previous
procedures.

When replacing the keyboard,
the keyboard cable should fold

NOTE:

behind the
than underneath the keyboard.

ZIF connector rather

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack
Palmrest Cover

with TouchPad

Removal Sequence

Removing the Status/Internet Zone Cover

(Status Panel Assembly)

Illustrations may show parts removed that

NOTE:

To remove the Status/Internet Zone Cover, complete the
following steps:

Prepare the computer for disassembly.

1.

2. Open the display assembly and squeeze the sides of the display assembly

hinge covers while sliding them off the hinges.

are not part of this procedure. It is
necessary to remove only the parts listed in
the written procedure.

Keyboard

Status/Internet
Zone Cover

Internet
Button Board

Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor
CD or DVD

Drive
Display Panel

Next Step

Assembly
Upper CPU

Cover
Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly
System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

Battery Pack
Palmrest Cover

Removal Sequence

Removing the Status/Internet Zone
Cover, continued

3. Remove two innermost screws from the display
assembly hinges which secure the status panel
to the chassis.

with TouchPad
QuikDock
Keyboard

Status/Internet
Zone Cover

Internet
Button Board

Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

Previous Step

Next Step

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Status/Internet Zone
Cover, continued

4. Turn the unit upside down and remove two
screws that secure the Status/Internet Zone
Cover to the chassis located in the back of the
computer.

Palmrest Cover
with TouchPad

Keyboard

Status/Internet
Zone Cover

Internet
Button Board

Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

Previous Step

Next Step

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack
Palmrest Cover

Removal Sequence

Removing the Status/Internet Zone
Cover, continued

5. Turn the unit right side up and open the
display assembly.

6. Lift up one corner of the Status/Internet Zone
Cover

7. Push forward from the back (center piece) to
release the snaps on the Status/Internet Zone

Cover

8. Remove Status/Internet Zone Cover from the
chassis.

.

.

with TouchPad
Keyboard

Status/Internet
Zone Cover

Internet
Button Board

Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor
CD or DVD

Drive
Display Panel

Assembly
Upper CPU

Cover
Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

To replace the status panel assembly, reverse the
previous procedures.

System Board
Memory

Module

Previous Step

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Internet Button Board

Illustrations may show parts removed that

NOTE:

To remove the internet button board, complete the following
steps:

Prepare the computer for disassembly.

1.

2. Remove the Status/Internet Zone Cover.

are not part of this procedure. It is
necessary to remove only the parts listed in
the written procedure.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover

Internet
Button Board

Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

3. Remove screw securing the display flex cable bracket and
disconnect the display flex cable and backlight cable from
the Internet Button Board.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

Next Step

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Internet Button Board,
continued

To remove the internet button board, complete the
following steps:

4. Remove two screws securing the Internet
Button Board and remove from the chassis.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel

Internet
Button Board

Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

To replace the Internet Button Board, reverse the
previous procedures.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Previous Step

Speaker
Assembly

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Heatspreader

To remove the Heatspreader, complete the following steps:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Remove the keyboard.

4. Remove three screws from the Heatspreader and lift
out of the chassis.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board

Heatspreader

Modem
Hard Drive
DisqPlay

Module
Processor
CD or DVD

Drive
Display Panel

Assembly
Upper CPU

Cover
Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

If the thermal pads on the
Heatspreader are missing or damaged,

NOTE:

a new Heatspreader should be
installed.

To replace the Heatspreader, reverse the previous
procedures.

Before installing the new
Heatspreader, remove the

IMPORTANT:

plastic covering from the
thermal pads.

WARNING: To prevent damage, do

not use excessive force when replacing

System Board
Memory

Module

the screws.

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Modem

To remove the modem, complete the following
steps:

Prepare the computer for disassembly.

1.

2. Turn computer showing bottom side
upward.

3. Locate the modem door. (Modem door is
located on the left side when computer is
turned over with bottom side upward.)

4. Remove one screw from modem door.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader

Modem

Hard Drive
DisqPlay

Module
Processor

5. Disconnect modem from the system board.

To replace the modem board, reverse the
previous procedures.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly
System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Hard Drive

Illustrations may show parts removed that

NOTE:

To remove the hard drive, complete the following steps:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Remove four screws from the hard drive mounting bracket,

are not part of this procedure. It is
necessary to remove only the parts listed in
the written procedure.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem

Hard Drive

DisqPlay
Module

disconnect the hard drive data cable and lift out the hard
drive with drive mounting brackets attached.

Processor
CD or DVD

Drive
Display Panel

Assembly
Upper CPU

Cover
Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Next Step

Assembly
System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Hard Drive Mounting
Brackets

To remove the hard drive mounting brackets, remove
two screws from each of side of the hard drive.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem

Hard Drive

DisqPlay
Module

Processor

To replace the hard drive and mounting brackets,
reverse the previous procedures.

Previous Step

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the DisqPlay Module

Illustrations may show parts removed that

NOTE:

To remove the DisqPlay Module, complete the following steps:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Remove the hard drive.

are not part of this procedure. It is
necessary to remove only the parts listed in
the written procedure.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive

DisqPlay
Module

Processor

4. Lift up the DisqPlay Module, disconnect the flex cable from
the DisqPlay Module, and remove the DisqPlay Module from
the chassis.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

To replace the DisqPlay Module, reverse the previous
procedures.

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Processor

To remove the processor, complete the following steps:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Remove the keyboard.

4. Remove the Heatspreader.

5. Place tip of standard screwdriver in the "Open" slot,
shift it to the right, and lift processor from the chassis.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module

Processor

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

Next Step

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

To replace the processor, perform the following:

1. Fully align the processor connector with the
system board connector.

2. Press down carefully on the processor
directly over the connectors to seat the
processor.

3. Reverse the previous procedures.

Previous Step

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module

Processor

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack
Palmrest Cover

Removal Sequence

Removing the CD or DVD Drive

To remove the CD or DVD Drive, complete the
following steps:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Remove the keyboard.

4. Remove the Heatspreader.

5. Turn the unit over and remove two screws
from the base enclosure which secure the CD
or DVD drive to the chassis.

with TouchPad
Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

CD or DVD

Next Step

Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly
System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the CD or DVD Drive,
continued

6. Disconnect the CD or DVD drive cable from
the CD or DVD and push forward from the
back of the drive to remove from the chassis.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

To replace the CD or DVD drive, reverse the
previous procedures.

Previous Step

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Display Panel Assembly

Illustrations may show parts removed that

NOTE:

To remove the display panel assembly, complete the following
steps:

Prepare the computer for disassembly.

1.

2. Remove the Status/Internet Zone Cover.

are not part of this procedure. It is
necessary to remove only the parts listed in
the written procedure.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

3. Remove screw securing the display flex cable bracket and
disconnect the display flex cable and backlight cable from
the Internet Button Board.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

Next Step

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Display Panel Assembly,
continued

4. Remove two outermost screws from the display
base hinges.

5. Remove the display assembly from the chassis.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

Previous Step

To replace the display assembly, reverse
the previous steps.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Upper CPU Cover

To remove the upper CPU cover, complete the
following:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Remove the keyboard.

4. Remove the Heatspreader.

5. Remove the Status/Internet Zone Cover.

6. Remove the Internet Button board.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

7. Remove the hard drive.

8. Remove the display panel assembly.

9. Remove four screws located on the top of the
upper CPU cover and lift the cover off the
chassis.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

To replace the upper CPU cover, reverse the previous
procedures.

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Fan Assembly

To remove the fan assembly, complete the following:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Remove the keyboard.

4. Remove the Heatspreader.

5. Remove the Status/Internet Zone Cover.

6. Remove the Internet Button board.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module

7. Remove the display panel assembly.

8. Remove the hard drive.

9. Remove the upper CPU cover.

10. Lift the fan assembly from the chassis slot and
disconnect the fan cable from the connector on the
system board. Fan faces inward, and arrow is not
visible on the side of the fan.

Processor
CD or DVD

Drive
Display Panel

Assembly
Upper CPU

Cover

Fan Assembly

RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Next Step

Assembly
System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Fan Assembly, continued

To remove the fan gasket, pull the gasket from the
fan.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

To replace the fan assembly and gasket, reverse the
previous procedures.

When replacing the fan
assembly ensure the

IMPORTANT:

manufacturing label is
pointing inward.

Previous Step

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly

RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Real Time Clock (RTC)
Battery

CAUTION: Removing the RTC
battery

password and removes all setup

attributes that are programmed
in the CMOS.

To remove the RTC Battery, complete the
following steps:

Prepare the computer for disassembly.

1.

clears the power-on

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

2. Remove the Palmrest Cover with TouchPad.

3. Remove the keyboard.

4. Remove the Heatspreader.

5. Remove the RTC battery from the battery
socket, prying gently with a small flathead
screwdriver. The RTC battery is located
underneath the heatspreader next to the
CD/DVD connector.

To replace the RTC battery, press the battery
firmly into the socket and reverse the previous
procedures to replace the remaining components.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly

RTC Battery

Diskette Drive
Battery

Charger Board
Speaker

Assembly
System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Diskette Drive

To remove the diskette drive, complete the
following:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Remove the keyboard.

4. Remove the Heatspreader.

5. Remove the CD or DVD Drive.

6. Remove the Status/Internet Zone Cover.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

7. Remove the Internet Button board.

8. Remove the display panel assembly.

9. Remove the hard drive.

10. Remove the upper CPU cover.

11. Remove the battery charger board.

12. Remove screw from the diskette drive retaining
bracket.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery

Diskette Drive

Battery
Charger Board

Speaker
Assembly

Next Step

System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Diskette Drive,
continued

13. Remove the screw that connects the diskette
drive bracket to the chassis.

14. Disconnect the diskette drive data cable
from the ZIF connector on the system board
and lift the diskette drive from the chassis.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

To replace the diskette drive, reverse the previous
procedures.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery

Diskette Drive

Voltage
Converter
Board

Speaker

CAUTION: Ensure that cables
are placed in their proper
location during the reassembly
process.

Previous Step

Assembly
System Board
Memory

Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Battery Charger Board

(Voltage Converter Board)

To remove the battery charger board, complete the
following:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Remove the keyboard.

4. Remove the Heatspreader.

5. Remove the Status/Internet Zone Cover.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

6. Remove the Internet Button board.

7. Remove the display panel Assembly.

8. Remove the hard drive.

9. Remove the upper CPU cover.

10. Remove two screws from the battery charger
board, unplug the board from the connector on
the system board, and lift battery charger
board out of the chassis.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive

Battery
Charger Board

Speaker
Assembly

System Board
Memory

To replace the battery charger board, reverse the
previous procedures.

When replacing the battery
charger board, ensure that the

NOTE:

pins are aligned with the

Module

connector on the system board.

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Speaker Assembly

To remove the speaker assembly, complete the
following:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Remove the keyboard.

4. Remove the display panel assembly.

5. Remove the Status/Internet Zone Cover.

6. Remove the Internet Button board.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

7. Remove the Heatspreader.

8. Remove the upper CPU cover.

9. Remove the hard drive.

10. Remove the battery charger board.

11. Disconnect the speaker cables from the system
board and lift the speaker assembly from the
chassis.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board

Speaker
Assembly

System Board

CAUTION: Ensure that cables are
placed in their proper location during
the reassembly process. See

and Connectors for illustrations.

Cables

Memory
Module

To replace the speaker assembly, reverse the previous
procedures.

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the System Board

To remove the system board, complete the
following steps:

Prepare the computer for disassembly.

1.

2. Remove the Palmrest Cover with TouchPad.

3. Remove the keyboard.

4. Remove the display panel assembly.

5. Remove the Status/Internet Zone Cover.

6. Remove the Internet button board.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

7. Remove the Heatspreader.

8. Disconnect the DisqPlay Module cable from
the system board.

9. Remove the processor

10. Remove the CD or DVD drive.

11. Remove the upper CPU cover.

12. Remove the hard drive.

13. Remove the fan assembly.

14. Remove the battery charger board.

15. Disconnect the diskette drive cable from the
system board.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly

16. Disconnect the speaker assembly cables
from the system board.

Next Step

System Board

Memory
Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the System Board, continued

17. Remove two standoffs from the system board.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

Previous Step

Next Step

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board

Memory
Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the System Board, continued

18. Remove two screws from the CD or DVD drive
mounting rail and lift the mounting rail from
the system board.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

Previous Step

Next Step

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board

Memory
Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the System Board, continued

19. Remove four screws from the system board.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

Previous Step

Next Step

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Speaker
Assembly

System Board

Memory
Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the System Board, continued

20. Shift the board to the left and lift up then pull
out to remove from the chassis.

Palmrest
Cover with
TouchPad

Keyboard
Status Panel
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

Before replacing the

IMPORTANT:

To replace the system board, reverse the previous
procedures.

system board, remove all
remaining cables.

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Voltage

Converter
Board

Previous Step

Speaker
Assembly

System Board

Memory
Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Memory Module

To remove the memory module, complete the
following:

Prepare the computer for disassembly.

1.

2. Close the computer and turn it upside down.

3. Remove the screw from the memory module
door.

4. With the front of the computer facing you, slide
the memory module door to the left and lift.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor
CD or DVD

Drive
Display Panel

Assembly
Upper CPU

Cover
Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Next Step

Assembly
System Board

Memory
Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Removal
Sequence

Electrostatic
Discharge

Service
Considerations

Cables and
Connectors

Preparing the
Computer for
Disassembly

QuikDock
Battery Pack

Removal Sequence

Removing the Memory Module, continued

5. Pull side levers to release the memory module
and unplug the memory module from the system
board.

Palmrest Cover
with TouchPad

Keyboard
Status/Internet

Zone Cover
Internet

Button Board
Heatspreader
Modem
Hard Drive
DisqPlay

Module
Processor

To replace the memory module, reverse the previous
procedures.

Previous Step

CD or DVD
Drive

Display Panel
Assembly

Upper CPU
Cover

Fan Assembly
RTC Battery
Diskette Drive
Battery

Charger Board
Speaker

Assembly
System Board

Memory
Module

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Preliminary
Steps

Clearing the
Power-On
Password

Power-On Self
Test (POST)

Compaq
Diagnostics

Diagnostic
Error Codes

Troubleshooting
Without
Diagnostics

Troubleshooting

Preliminary Steps

Before running POST, complete the
following preliminary steps:

1. If a power-on password has been
established, type the password and
press the Enter key. If the
password is not known, clear the

password.

2. Run

3. Turn off the computer and its
external devices.

4. Disconnect any external devices

Computer Checkup.

Solving Minor
Problems

Contacting
Compaq
Support

that you do not want to test. Do
not disconnect the printer if you
want to test it or use it to log error
messages.

If the problem only
occurs when an
external device is
connected to the
computer, the
problem may be

IMPORTANT:

related to the
external device or
its cable. Verify this
by running POST
with and without
the external device
connected.

5. Install loopback plugs in the serial
and parallel connectors if you would
like to test these ports.

6. Ensure the hard drive is installed in
the computer.

7. Ensure that the battery pack is
inserted in the computer and the
computer is connected to an
external AC power source.

When the preliminary steps are
completed, you are ready to run POST.

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Preliminary
Steps

Clearing the
Power-On
Password

Power-On Self
Test (POST)

Compaq
Diagnostics

Diagnostic
Error Codes

Troubleshooting
Without
Diagnostics

Solving Minor

Troubleshooting

Clearing the Power-On Password

Clearing the power-on password also

NOTE:

If the password is not known, clear it by performing the
following steps:

1. Turn off the computer.

2. Disconnect the power cord.

3. Remove the

4. Remove the

5. Remove the

6. Remove the

removes all Setup attributes that are
programmed in the CMOS.

battery pack.
Palmrest Cover with TouchPad.
keyboard.
Heatspreader.

Problems
Contacting

Compaq
Support

7. Remove the RTC
battery for about
30 seconds to
ensure that the
password is
cleared. (The RTC
battery is located
underneath the
heatspreader and
next to the
CD/DVD
connector.) Not
shown in
illustration.

8. Reassemble the
computer.

9. Turn on the
computer to verify
that the power-on
password has been
cleared. If it has
not been cleared,
repeat steps 1
through 9.

Presario 1600 Series

PresModels: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Preliminary
Steps

Clearing the
Power-On
Password

Power-On Self
Test (POST)

Compaq
Diagnostics

Diagnostic
Error Codes

Troubleshooting
Without
Diagnostics

Solving Minor
Problems

Troubleshooting

Power-On Self Test (POST)

To run POST, complete these steps:

Turn off the computer, then turn on the
computer. As soon as the Compaq logo
appears press the ESC key to clear the
logo and display the POST messages as
they occur.

If POST does not detect any errors, the
computer will not beep. This indicates
successful completion of the POST test.
POST has run successfully and boots
from the hard drive (or from a bootable
diskette if one is installed in the diskette
drive).

Contacting
Compaq
Support

If POST detects errors, the errors are
indicated by screen and/or audible
messages. A list of the POST error codes
and their descriptions are shown in the
table below.

If the system is not
functioning well
enough to run POST,
or if the display is
not functioning well

NOTE:

enough to show
POST error
messages, refer to
the Troubleshooting
tables.

Power-On Self-Test Messages

102-System Board Failure

Probable
Cause

DMA, timers,
etc.

162-System Options Not Set

Probable
Cause

Configuration
incorrect

CMOS reflects
that an invalid

Recommended
Action

Replace the system
board.

Recommended
Action

Run Computer Setup.

Run Computer Setup.

configuration
has been set.

RAM failure 1. Replace the

memory modules.

2. Replace the
system board.

Memory test
data error

XX000YZZ RAM
failure

XX000YZZ 201-Memory Error

Probable

1. Replace the
memory modules.

2. Replace the
system board.

Replace the system
board.

Recommended

Cause

1. Replace the

301-Keyboard Error

Probable
Cause

Keyboard failure 1. Ensure the keys

Action

memory modules.

2. Replace the
system board.

Recommended
Action

are not depressed
during POST.

2. Reconnect the
keyboard with the
computer off.

3. Replace the
keyboard.

304-Keyboard or System Unit Error

Probable
Cause

Keyboard or
system board
error

601-Diskette Controller Error

Probable
Cause

Recommended
Action

1. Replace the
keyboard.

2. Replace the
TouchPad or
mouse.

3. Replace the
system board.

Recommended
Action

Mismatch in
drive type or
failure in the
diskette
controller

605-Diskette Drive Error

Probable
Cause

Mismatch in
drive type

1780-Primary Hard Drive 0 Failure

Probable
Cause

1. Run Computer
Checkup (TEST).

2. Check and/or
replace cables.

3. Replace the
system board.

Recommended
Action

Run Computer Setup.

Recommended
Action

Disk 0 failed to
respond

Hard drive
format error

1782-Hard Drive Controller

Probable
Cause

Hard drive
controller failure

1. Run Computer
Checkup (TEST).

2. Replace the hard
drive.

1. Run Computer
Checkup (TEST).

2. Replace the hard
drive.

Recommended
Action

1. Run Computer
Setup.

2. Replace the hard
drive.

Top of Page

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Preliminary
Steps

Clearing the
Power-On
Password

Power-On Self
Test (POST)

Compaq
Diagnostics

Diagnostic
Error Codes

Troubleshooting
Without
Diagnostics

Troubleshooting

Compaq Diagnostics

Compaq Diagnostics are installed on the hard drive of the
computer. Run the Diagnostic utilities when you want to view or
test system information and if you have installed or connected
devices. If you run Compaq Diagnostics from a diskette, ensure
that it is version 10.11 or later.

The Diagnostics menu includes the following utilities:

● Computer Checkup (TEST)

● View System Information (INSPECT)

● Prepare Computer for a Compaq Service Call (RemotePaq)

Solving Minor
Problems

Contacting
Compaq
Support

If you have a problem you cannot solve, run the Diagnostics
utilities before you call for support. Run Computer Checkup and
select to save the device list to a file and to print or to save the
log of errors. Run the View System Information (INSPECT) utility
and select to print or to save that information. Have the files or
the printed information available when you call for support.

Computer Checkup (TEST)

Computer Checkup (TEST) determines whether the various
computer components and devices are recognized by the system
and are functioning properly. You can display, print, or save the
information generated by Computer Checkup.

Follow these steps to run Computer Checkup:

1. Plug the computer into an external power source. (A low
battery condition could interrupt the program.)

2. Turn on the external devices that you want to test. Connect
the printer if you want to print a log of error messages.

3. Insert the Compaq Diagnostics diskette in drive A.

4. Turn on or restart the computer. The computer starts from
drive A, and the Diagnostics Welcome screen appears.

5. Press Enter to continue. The Diagnostics menu appears.

6. Select Computer Checkup from the Diagnostics menu. A
Test Option menu appears.

7. Select View the Device List from the Test Option menu. A
list of the installed Compaq devices appears.

8. If the list of installed devices is correct, select OK. The Test
Option menu appears.

If the list is incorrect, ensure that any new

NOTE:

devices are installed properly.

9. Select one of the following from the Test Option menu:

■ Quick Check Diagnostics. Runs a quick, general test on

each device with a minimal number of prompts. If errors
occur, they display when the testing is complete. You
cannot print or save the error messages.

■ Automatic Diagnostics. Runs unattended, maximum

testing of each device with minimal prompts. You can
choose how many times to run the tests, to stop on
errors, or to print or save a log of errors.

■ Prompted Diagnostics. Allows maximum control over

testing the devices. You can choose attended or
unattended testing, decide to stop on errors, or choose to
print or save a log of errors.

10. Follow the instructions on the screen as the devices are
tested. When testing is complete, the Test Option menu
appears.

11. Exit the Test Option menu.

12. Exit the Diagnostics menu.

View System Information (INSPECT)

The View System Information (INSPECT) utility provides
information about the computer and installed or connected
devices. You can display, print, or save the information.

Follow these steps to run View System Information (INSPECT)
from the Compaq Diagnostics diskette:

1. Turn on the external devices that you want to test. Connect
the printer if you want to print the information.

2. Insert the Compaq Diagnostics diskette in drive A.

3. Turn on or restart the computer. The computer starts from
drive A, and the Diagnostics Welcome screen appears.

4. Press Enter to continue. The Diagnostics menu appears.

5. Select View System Information (INSPECT) from the
Diagnostics menu.

6. Select the item you want to view from the following list:

System Memory
ROM Audio
Keyboard Operating system
System ports System files
System storage Windows files
Graphics

7. Follow the instructions on the screen to cycle through the
screens, to return to the list and choose another item, or to
print the information.

Top of Page

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Preliminary
Steps

Clearing the
Power-On
Password

Power-On Self
Test (POST)

Compaq
Diagnostics

Diagnostic
Error Codes

Troubleshooting
Without
Diagnostics

Troubleshooting

Contacting Compaq Support

Obtain the following information before contacting
Compaq Reseller Support:

● Product name

● Product serial number

● Purchase date

● Conditions under which the problem occurred

● Any error messages that have occurred

● Hardware configuration

● Type of printer connected

● Hardware/software being used

● Printed result of Computer Checkup (TEST)

● Printed copies of CONFIG.SYS and AUTOEXEC.BAT

Solving Minor
Problems

Contacting
Compaq
Support

files, if possible

Shipping Preparation

To ship the computer, complete the following steps:

1. Back up the critical hard drive files. Ensure that
backup tapes/diskette are not exposed to electrical
or magnetic fields while stored in transit.

2. Turn off the computer and external devices.

3. Disconnect the external devices from their power
sources, then from the computer.

4. Close the display and all exterior doors of the
computer.

5. Pack the computer with sufficient packing material
to protect it. Use the original packing box or
similar packaging.

IMPORTANT:

Ensure that there is no diskette in the
diskette drive and that there are no PC
Cards in the PC slots.

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Preliminary
Steps

Clearing the
Power-On
Password

Power-On Self
Test (POST)

Compaq
Diagnostics

Diagnostic
Error Codes

Troubleshooting
Without
Diagnostics

Troubleshooting

Diagnostic Error Codes

Diagnostic error codes occur if the system recognizes a problem
while running the Compaq Diagnostic program. These error codes
help identify possibly defective subassemblies.

The following tables list error codes, a description of the error
condition, and the action required to resolve the error condition.

Retest the system after completing
each step. If the problem has been

IMPORTANT:

resolved, do not proceed with the
remaining steps.

Solving Minor
Problems

Contacting
Compaq
Support

For the removal and replacement of a particular subassembly, see

Removal and Replacement Procedures.

Select error codes by number or type:

101 through 114 Processor Test
200 through 215 Memory Test
300 through 304 Keyboard Test
401 through 403 Parallel Printer Test
501 through 516 Video Test

1101 Serial Test
1701 through 1736 Hard Drive Test
2402 through 2456 Video Test
2419 through 2456 Video Test
2458 through 2480 Video Test
3206 Audio Test
3301 through 6623 DVD or CD Test

TouchPad Pointing Device

8601 through 8602

Test

Processor Test Error Codes

Error

Description Recommended Action

Code

CPU test failed Replace the processor and

101-xx

retest.

102-xx Coprocessor or Weitek

Error

103-xx DMA page registers test

failed

104-xx Interrupt controller

master test failed
105-xx Port 61 error
106-xx Keyboard controller self-

test failed
107-xx CMOS RAM test failed
108-xx CMOS interrupt test failed

1. Run the Configuration and
Diagnostics Utilities.

2. Replace the processor
board and retest.

Replace the system board
and retest.

109-xx CMOS clock test failed
110-xx Programmable timer load

data test failed

113-xx Protected mode test

failed

114-01 Speaker test failed 1. Check system

configuration.

2. Verify cable connections
to speaker.

3. Replace the system board
and retest.

Top of Page

Memory Test Error Codes

Error
Code

200-xx Memory machine ID test

202-xx Memory system ROM

203-xx Write/Read test failed 1. Remove the memory
204-xx Address test failed
211-xx Random pattern test

214-xx Noise test failed

Description Recommended Action

1. Flash the system ROM

failed

checksum failed

failed

and retest.

2. Replace the system board
and retest.

module and retest.

2. Install a new memory
module and retest.

215-xx Random address test

failed

Top of Page

Keyboard Test Error Codes

Error
Code

300-xx Failed ID Test 1. Check the keyboard
301-xx Failed Self-test/Interface

302-xx Failed Individual Key Test

Description Recommended Action

connection. If
disconnected, turn off the

Test

computer and connect the
keyboard.

2. Replace the keyboard and

304-xx Failed Keyboard Repeat

Test

Top of Page

Parallel Printer Test Error Codes

Error

Description Recommended Action

Code

401-xx Printer failed or not

connected

retest.

3. Replace the system board
and retest.

1. Connect the printer.

2. Check power to the
printer.

402-xx Failed Port Test

403-xx Printer pattern test failed

Top of Table

Diskette Drive Test

Error

Description Recommended Action

Code

3. Install the loop-back
connector and retest.

4. Check port and IRQ
configuration.

5. Replace the system board
and retest.

Diskette ID drive types

600-xx

601-xx Diskette format failed
602-xx Diskette read test failed

603-xx

604-xx
605-xx Diskette ID media failed

606-xx Diskette speed test failed
609-xx

test
failed

Diskette write, read,
compare test failed

Diskette random read
test failed

Diskette reset controller
test failed

1. Replace the diskette
media and retest.

2. Check and/or replace the
diskette power and signal
cables and retest.

3. Replace the diskette drive
and retest.

4. Replace the system board
and retest.

610-xx
697-xx Diskette type error
698-xx

699-xx

Top of Page

Diskette change line test
failed

Diskette drive speed not
within limits

Diskette drive/media ID
error

Serial Test Error Codes

1. Replace media.

2. Run the Configuration and
Diagnostics Utilities.

Error
Code

1101­xx

Top of Page

Error
Code

1701-

Description Recommended Action

Serial port test failed

Description Recommended Action

Hard drive format test

1. Check port configuration

2. Replace the system board
and retest.

Hard Drive Test Error Codes

1. Run the Configuration

xx
1702-

xx
1703-

xx
1704-

xx
1705-

xx
1706-

xx
1707-

xx

failed
Hard drive read test failed

Hard drive
write/read/compare test
failed

Hard drive random seek
test failed

Hard drive controller test
failed

Hard drive ready test
failed

Hard drive re-calibration
test failed

and Diagnostics Utilities
and verify drive type.

2. Verify that all secondary
drives have secondary
drive capability.

3. Replace the hard drive
and retest.

4. Replace the system
board and retest.

1708­xx

1709­xx

1710­xx

1715­xx

1716­xx

1717­xx

1719­xx

Hard drive format bad
track test failed

Hard drive reset controller
test failed

Hard drive park head test
failed

Hard drive head select
test failed

Hard drive conditional
format test failed

Hard drive ECC* test
failed

Hard drive power mode
test failed

1724­xx

1736­xx

* ECC = Error Correction Code

Top of Page

Network preparation test
failed

Drive monitoring test
failed

Video Test Error Codes

Error
Code

501-xx

Description Recommended Action

Video controller test
failed

The following steps apply to

error codes 501-xx through
502-xx Video memory test failed
503-xx Video attribute test failed

504-xx

505-xx

506-xx

507-xx

508-xx

Video character set test
failed

Video 80 x 25 mode 9 x
14 character cell test
failed

Video 80 x 25 mode 8 x 8
character cell test failed

Video 40 x 25 mode test
failed

Video 320 x 200 mode
color set 0 test failed

516-xx:

1. Disconnect external
monitor and test with
internal LCD display.

2. Replace the display
assembly and retest.

3. Replace the system board
and retest.

509-xx

510-xx

511-xx

512-xx

514-xx

516-xx

Video 320 x 200 mode
color set 1 test failed

Video 640 x 200 mode
test failed

Video screen memory
page test failed

Video gray scale test
failed

Video white screen test
failed

Video noise pattern test
failed

Video Test Error Codes Continued

Error
Code

2402­xx

2403­xx

2404­xx

2405­xx

2406­xx

2408-

Description Recommended Action

Video memory test failed The following steps apply to

error codes 2402-xx through

Video attribute test failed

Video character set test
failed

Video 80 x 25 mode 9 x
14 character cell test
failed

Video 80 x 25 mode 8 x 8
character cell test failed

Video 320 x 200 mode

2456-xx:

1. Run the Configuration and
Diagnostics Utilities.

2. Replace the display
assembly and retest.

3. Replace the system board
and retest.

xx
2409-

xx
2410-

xx
2411-

xx
2412-

xx
2414-

xx
2416-

xx
2418-

color set 0 test failed
Video 320 x 200 mode

color set 1 test failed
Video 640 x 200 mode

test failed
Video screen memory

page test failed
Video gray scale test

failed
Video white screen test

failed
Video noise pattern test

failed
ECG/VGC memory test

xx

Error
Code

2419­xx

2421­xx

2422­xx

2423­xx

2424-

failed

Video Test Error Codes Continued

Description Recommended Action

ECG/VGC ROM checksum
test failed

ECG/VGC 640 x 200
graphics mode test failed

ECG/VGC 640 x 350 16
color set test failed

ECG/VGC 640 x 350 64
color set test failed

ECG/VGC monochrome

1. Run the Configuration and
Diagnostics Utilities.

2. Disconnect external
monitor and test with
internal LCD display.

3. Replace the display
assembly and retest.

4. Replace the system board
and retest.

xx
2425-

xx
2431-

xx
2432-

xx
2448-

xx
2451-

xx
2456-

xx

text mode test failed
ECG/VGC monochrome

graphics mode test failed
640 x 480 graphics test

failure
320 x 200 graphics (256

color mode) test failure
Advanced VGA Controller

test failed
132-column Advanced

VGA test failed
Advanced VGA 256 Color

test failed

Error
Code

2458­xx

2468­xx

2477­xx

2478­xx

2480­xx

Video Test Error Codes Continued

Description Recommended Action

Advanced VGA BitBLT
test

Advanced VGA DAC test

Advanced VGA data path
test

Advanced VGA BitBLT
test

Advanced VGA LineDraw
test

The following applies to error
codes 2458-xx through 2480­xx:

Replace the system board
and retest.

Top of Page

Audio Test Error Codes

Error
Code Description Recommended Action

3206­xx

Top of Page

Audio System Internal
Error

Replace the system board
and retest.

TouchPad/Pointing Device Interface Test Error Codes

Error
Code

8601­xx

8602­xx

Top of Page

Description Recommended Action

Mouse test failed 1. 1. Replace the TouchPad

and retest.

Interface test failed

2. Replace the system board
and retest.

DVD or CD Drive Test Error Codes

Error
Code

3301­xx

3305­xx

6600­xx

6605­xx

6608­xx

6623­xx

Description Recommended Action

DVD or CD drive read
test failed

DVD or CD drive seek
test failed

ID test failed

Read test failed

Controller test failed

Random read test failed

1. 1. Replace the DVD or CD
and retest.

2. Verify that the speakers
are connected.

3. Verify that drivers are
loaded and properly
installed.

4. Replace the DVD or CD
drive and retest.

5. Replace the system board
and retest.

Top of Page

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Preliminary
Steps

Clearing the
Power-On
Password

Power-On Self
Test (POST)

Compaq
Diagnostics

Diagnostic
Error Codes

Troubleshooting
Without
Diagnostics

Solving Minor
Problems

Troubleshooting

Troubleshooting without Diagnostics

This section provides information about how to identify and correct
some common hardware, memory, and software problems. It also
explains several types of common messages that may be displayed
on the screen. The following pages contain troubleshooting
information on:

Audio Memory
Battery PC Card
DVD or CD drive Power

Printer
Display TouchPad
Hard drive Keyboard/Numeric keypad
Hardware Installation

Contacting
Compaq
Support

Since symptoms can appear to be similar, carefully match the
symptoms of the computer malfunction against the problem
description in the Troubleshooting tables to avoid a misdiagnosis.

WARNING: To avoid a potential shock
hazard during troubleshooting
procedures, disconnect all power
sources before removing the keyboard
cover or the display bezel.

Before Replacing Parts

Verify that cables are connected properly to the suspected defective
parts.

● Run Computer Setup after connecting external devices.

● Verify that all required device drivers are installed.

● Verify that all required changes have been made to the

CONFIG.SYS file.

● Verify that all required changes have been made to the

AUTOEXEC.BAT file.

● Verify that all printer drivers have been installed for each

application.

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Preliminary
Steps

Clearing the
Power-On
Password

Power-On Self
Test (POST)

Compaq
Diagnostics

Diagnostic
Error Codes

Troubleshooting
Without
Diagnostics

Solving Minor
Problems

Troubleshooting

Solving Minor Problems

Some minor problems and possible solutions are
outlined in the following tables. If the problem
appears related to a software application, check
the documentation provided with the software.

Solving Audio Problems

Some common audio problems and solutions are
listed in the following table.

Solving Audio Problems

Problem

Probable

Solution(s)

Cause

Contacting
Compaq
Support

Computer does
not beep after
the Power-On
Self-Test
(POST).

This is typical;
it indicates
successful
completion of
the Power-On
Self-Test
(POST).

No action is
required.

Solving Battery Pack and Battery
Gauge Problems

Some common causes and solutions for battery
pack problems are listed in the following table.
The "Solving Power Problems" section in this
chapter may also be applicable.

Solving Battery Pack and Battery

Gauge Problems

Problem

Computer
won't turn on
when battery
pack is
inserted and
power cord is
unplugged.

Probable
Cause

Battery pack
is
discharged.

Solution(s)

Connect the
computer to an
external power
source and charge
the battery pack.

Replace the
battery pack with a
fully charged

Computer is
beeping
and battery
icon is
blinking.

Battery
charge is
low.

battery pack.
Check the battery

connectors on the
system board to
verify they are
evenly spaced and
that they are not
bent or broken.

Immediately save
any open file(s).
Then complete
either one of the
following:

● Connect the

computer to an

Computer
battery icon

Volume is
turned down

external power
source to charge
the battery
pack.

● Turn off the

computer or
initiate
Hibernation until
you can find
another power
source or
charge the
battery pack.

Adjust the volume.

(front on the
unit) blinks to
indicate low
battery
condition, but
computer
does not
beep.

Battery icon
doesn't light
and battery
pack won't
fast charge.

Battery pack
was exposed
to

too low.

Battery pack
is already
charged.

Allow time for the

No action is
necessary.

battery pack to

return to room
temperature
extremes.

Battery pack
is at end of
its life.

You have to
set the date
and time
every time
you turn on
the computer.

Top of Page

temperature.

Replace battery

pack.

RTC battery
is dead.

Replace the RTC

battery.

See

RTC Battery

section in this

guide.

Removing the

Battery Pack/Gauge Problems

Problem

Battery
charge does
not last as
long as
expected.

Continued

Probable
Cause

Battery is
being
exposed to
high
temperatures
or extremely
cold
temperatures.

Solution(s)

Keep the battery
pack within the
recommended
temperature
range for
operation or
storage.

● Operating

Range:
50° F to 104°

Battery has
partially self­discharged.

F
(10° C to 40°
C)

● Storage

Range:

-4° F to 86° F
(-20° C to 30°
C)

Recharge the
battery pack.

Recharge the
battery.
Discharge the
battery
completely and

Battery pack
is warm to
the touch
after
charging.

Power
management
is disabled.

An external
device or PC
Card is
draining the
battery.

Normal
warming has
occurred due
to charging.

then recharge it.
Set a power

management
level in Computer
Setup.

Turn off or
disconnect
external devices
when not using
them.

No action is
required.

Battery pack
operating
time is far
less than the
documented
average
operating
time.

An external
device or PC
Card is
draining the
battery.

Battery pack
has partially
self-

Power
management
is turned off
or disabled.

Turn off or

Condition the

Enable power
management in
Computer Setup
and in Windows
Power Properties.

disconnect
external devices
when not using
them.

battery pack by
fully charging,

discharged.

fully discharging,
then fully
recharging it.

To maintain the
charge, leave
battery packs in
the computer
when it is
connected to
external power.

If the computer
is disconnected
from external
power for more

Battery pack
is being
exposed to
high
temperatures
or extremely
cold
temperatures.

than two weeks,
remove battery
packs from the
computer to
reduce the
discharge rate.

Keep the battery

pack within the
recommended
temperature
range for
operation or
storage.

● Operating

Range:

Top of Page

50° F to 104°
F
(10° C to 40°
C)

● Storage

Range:

-4° F to 86° F
(-20° C to 30°
C)

Recharge the
battery pack.

Solving DVD or CD Drive Problems

Some common causes and solutions for DVD or
CD drive problems are listed in the following
table.

Solving DVD or CD Drive Problems

Problem

DVD or CD
drive cannot
read a compact
disc.

Probable
Cause

Disc is upside
down or is
improperly
inserted in the
DVD or CD
drive.

Solution(s)

Open the
loading tray,
lay the
compact disc in
it (label side
up), then close
the tray.

CD is CD Plus
or
Pregap/Track
0 type.

Top of Page

Cannot read
these type CDs
in 24x. Remove
the CD.

Solving Diskette Drive Problems

Some common causes and solutions for diskette
drive problems are listed in the following table.

Solving Diskette Drive Problems

Problem

Diskette drive
cannot write to
a diskette.

Probable
Cause

Diskette is
write­protected.

Computer is
writing to
the wrong
drive.

Not enough
space is left

Solution(s)

Disable the
diskette's write­protect feature
or use a
diskette that is
not write­protected.

Check the
drive letter in
the path
statement.

Use another
diskette.

Diskette drive
cannot read a
diskette.

on the
diskette.

Drive error
has occurred.

Diskette is not
formatted.

The wrong
type of
diskette is

Run Computer
Checkup from
the Compaq
Diagnostics
diskette.

Format the
diskette. At
the system
prompt, enter:
FORMAT A:

Use the type
of diskette
required by

being used.
Diskette has a

bad sector.

Drive error
has occurred.

Diskette is not
formatted.

the drive.
Copy files to

hard drive or
another
diskette.
Reformat bad
floppy.

Run Computer
Checkup from
the Compaq
Diagnostics
diskette.

Format the
diskette. At
the system

Cannot boot
from diskette.

Top of Page

Bootable
diskette is not
in drive A.

Diskette Boot
has incorrect
setting in
Computer
Setup.

prompt, enter:
FORMAT A:

Put the
bootable
diskette in
drive A.

Run Computer
Setup and set
diskette as
first to boot.

Solving Display Problems

This section lists some common causes and
solutions for computer display and external
monitor problems.

You can perform a monitor self-test on an
external VGA color or monochrome monitor by
disconnecting the monitor from the computer. To
do so, complete the following steps:

1. Turn off the monitor.

2. Turn off the computer.

3. Disconnect the monitor signal cable
from the computer.

4. Turn on the monitor and allow it to
warm up for one minute.

The display should be white. A narrow black
border may also appear on the left and right
sides of the display. Either of these displays
indicates that the monitor is working properly.

Solving Display Problems

Problem

Screen is dim. Control for

Probable
Cause

brightness

Solution(s)

Adjust the
Brightness of
the display by
using Fn+F7

Screen is
blank.

Computer
screen is in
direct light.

Screen save
was initiated
by Power
Management
due to lack of
user activity.

Display has
overheated.

(¯) or
Fn+F8 (-).

Tilt display or
move
computer.

Press any key
or touch the
TouchPad.

If computer is
in direct
sunlight, move
it and allow it

Display is blank
and the Half­Moon icon
appears on the
Disqplay2
status.

Internal display
is blank and
the screen on
an external
monitor
displays
information.

System is in
Suspend
mode.

Display
function was
switched to
the external
monitor.

to cool off.
Press any key

or touch the
TouchPad.

Use Fn+F3 to
switch
between LCD
or CRT.

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Solving Display Problems Continued

Problem

Internal
display flashes
or has garbled
characters
when
computer is
connected to
external
monitor.

Probable
Cause

Using 1024
× 768 or
higher
resolution
on external
monitor and
have
toggled
back to

Solution(s)

Restart the
computer.

The light
tubes on the
edge of the
display panel
do not light up
at all and
Power-On Self­Test (POST)
completes
when the unit
is powered
up.**

internal
display,
which
supports up
to
800 × 600.

Improper
backlight or
display
cable
connections

Defective
inverter
board.

Defective
display
cable.

Replace the
display assembly.

Replace the
display assembly.

Replace the
display assembly.

The light
tubes on the
edge of the
display panel
do not light up
at all and
Power-On Self­Test (POST)
does not
complete

Defective
display
panel.

Defective
system
board.

Defective
system
board.

Replace the
display assembly.

Replace the
system board.

Replace the
system board.

when the unit
is powered
up.**

Backlight
(brightness)
cannot be
adjusted with
Fn+F7 (¯) or
Fn+F8 (-).***

Improper
display
cable
connections.

Defective
inverter
board.

Defective

1. Reseat the
display cable to
the system
board.

2. Replace the
display
assembly.

Replace the
display assembly.

Replace the
display
cable.

Defective
system
board.

** This problem indicates that the backlight or
its power circuitry has failed. Since you cannot
observe the POST result on the display panel
when the backlight is not functioning, connect
the unit to an external monitor before powering
the unit up. If an external monitor is not
available, verify that POST completes by
opening and closing the display, listening for
the single or double beep, and watching for the
icons to turn on at the front of the computer.

display assembly.

Replace the

system board.

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Solving Display Problems Continued

Problem

This display
panel has a
continuous
pattern across
it (e.g., a
"jailbars"
pattern), has a
single color on
it, or has
garbled

Probable
Cause

Improper
display
cable
connections

Solution(s)

Reseat the
display cable to
the following until
the problem is
solved:

1. System board

2. Display
assembly

graphics across
the entire
panel. This
failure is for
patterns across
the entire panel
(not just on one
section).

A single line,
small group of
lines, or block
appears on the
display panel.

Defective
display
cable.

Defective
inverter
board.

Defective
system
board.

Defective
display
panel.

Replace the
display assembly.

Replace the
display assembly.

Replace the
system board.

Replace the
display assembly.

This failure
occurs in only a
section of the
display panel.

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To perform a "self-test" on an
external VGA color or
monochrome monitor,
complete the following steps:
The screen should be white. A

NOTE:

narrow black border may also
appear on the left and right
sides of the display. Either of
these displays indicates that
the monitor is working
properly.

Solving Hard Drive Problems

Some common causes and solutions for hard
drive problems are listed in the following table.

CAUTION: To prevent loss of
information, always maintain an
up-to-date backup of your hard
drive at all times, in case of
errors or failures.

Solving Hard Drive Problems

Problem

Reading hard
drive takes an
unusually long
time after
restarting the
computer.

Hard drive
error occurs.

Hard drive
does not work.

Probable
Cause

System
entered
Hibernation
due to low
battery
condition and
is now exiting
from it.

Hard drive has
bad sectors or
has failed.

Hard drive is
not seated

Solution(s)

Give the
system time to
restore the
previously
saved data to
its exact state
before
Hibernation.

Run Computer
Checkup.

Turn off and
unplug the

properly.

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computer,
remove the
battery pack,
and remove
and then
reinstall the
hard drive.

Solving Hardware Installation
Problems

Some common causes and solutions for
hardware installation problems are listed in the
following table.

Solving Hardware Installation

Problems

Problem

A new device is
not recognized
as part of
the computer
system.

Probable
Cause

Cable(s) of
new external
device are
loose or
power cables
are
unplugged.

Solutions(s)

Ensure that all
cables are
properly and
securely
connected.

Power switch
of new
external
device is not
turned on.

Device is not
seated
properly.

Turn off the
computer,
turn on the
external
device, then
turn on the
computer to
integrate the
device with the
computer
system.

Turn off the
computer and
reinsert the
device.

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Solving Keyboard/Numeric Keypad
Problems

Some common causes and solutions for
keyboard/numeric keypad problems are listed in
the following table.

Solving Keyboard/Numeric Keypad

Problems

Problem

Embedded

Probable
Cause

Num Lock

Solution(s)

Press the
numeric keypad
on computer
keyboard is
disabled.

Embedded
numeric keypad
is disabled and
Num Lock

function is
not enabled.

External
numeric
keypad is
connected to

Fn+NumLk

keys to

enable the

Num Lock

function and

embedded

numeric

keypad. The

Num Lock

icon on the

status panel

turns on.

Disconnect

the external

numeric

keypad from
function is on.

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the computer.

the computer.

Solving Memory Problems

Some common causes and solutions for memory
problems are listed in the following table.

Solving Memory Problems

Problem

Probable

Solution(s)

Cause

Memory count
during Power­On Self-Test
(POST) is
incorrect.

"Out of
Memory"
message is
displayed on
the screen or
insufficient

Optional
memory
expansion
card
is installed
incorrectly,
is incompatible
with
the computer,
or is defective.

System ran
out of
memory for
the
application.

Ensure that
the optional
memory
expansion
card is
installed
correctly.

Check the
application
documentation
for memory
requirements.

memory
error occurs
during
operation.

Too many TSR
(terminate­and stay­resident)
applications
are running.

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Solving Minor Problems continued

Install
additional
memory.

Remove from
memory any
TSR
applications
that you do
not need.

United States January 2, 2003

Presario 1600 Series

Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,

1600-XL144, 1600-XL145, 1600-XL146, and 1600-XL147

Before You Begin Product Description Parts Catalog

Specifications Battery Operations Pin Assignments

Removal Sequence Troubleshooting MSG Index

Preliminary
Steps

Clearing the
Power-On
Password

Power-On Self
Test (POST)

Compaq
Diagnostics

Diagnostic
Error Codes

Troubleshooting
Without
Diagnostics

Solving Minor
Problems

Troubleshooting

Solving PC Card Problems

The following table lists some common causes
and solutions for PC Card problems.

Solving PC Card Problems

Problem Probable

Cause

When
turned on,
the
computer
does not
beep when a
PC Card is
inserted.

Card is not
inserted
properly.

PC Card beeps
are disabled.

Solution(s)

Ensure that the
card is inserted in
the correct
orientation.

Double-click the
PC Card icon in
the Control Panel,

Contacting
Compaq
Support

Speaker is
turned off or
volume is
turned down.

PC Card drivers
are not
installed.

click the Global
Settings tab, the
enable PC Card
sound effects.

Press volume
buttons to turn
the speaker on,
then increase the
volume.

Double click the

Add New
Hardware icon in

the Control Panel
for installation
instructions.

PC Card

Card or card
driver is not
supported.

Card is not

If PC Card or
drivers are not
compatible with
Windows, install
drivers and use
the PC Card in MS­DOS mode.

Contact your
Compaq
authorized service
provider for a list
of PC Cards tested
successfully in
Compaq PC Card
platforms.

Ensure that the
modem, fax,
or network
card does
not work.

PC Card
modem or
fax card
does not
work.

fully inserted
into the slot or
is not inserted
properly.

Telephone cord
is not plugged
in all the way.

Necessary
drivers are not
installed
(turned on).

You are trying
to access the
card using the
wrong COM
port.

card is inserted in

the correct

orientation.

Check and secure

telephone

connection.

Install drivers.

See

to verify COM

port.

Specifications

The card
conflicts with a
serial device.

The card is not
supported.

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See Specifications

to verify address.

Use supported

cards only.

Solving Power Problems

Also see "Solving Battery and Battery Gauge

Problems" in this section.

Solving Power Problems

Problem Probable

Cause

Computer
won't turn on
and battery
pack is not
inserted.

Computer is
not connected
to a power
source.

Power cords to
the external
power source
are unplugged.

Power adapter

Solution(s)

Insert battery or
connect an
external power
source.

Ensure that
power cords
connecting the
computer and
the external
power source
are plugged in
properly.

Replace AC

Computer
turned off
while it was
left
unattended
and the power
icon is off.

is defective.

System board
is defective.

System
initiated
Hibernation
due to a
critical low­battery
condition.

System
initiated

Adapter and
restart.

Replace the
system board.

Replace the
battery pack
with a fully
charged battery
pack or connect
the computer to
an external
power source.
Then turn on
the computer.

Turn on the

computer.
Hibernation
after a preset
timeout.

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Solving Printer Problems

If you experience problems printing, run a printer
self-test. Refer to the documentation provided
with your printer for instructions.
If the self-test fails, it is a printer-specific
problem. Also refer to the printing section of your
application documentation.

Solving Printer Problems

Problem Probable Cause Solution(s)

Printer will
not turn on.

Printer will
not print.

The signal cable
may not be
connected properly,
or the printer is
unplugged.

Printer is not
turned on or is
offline.

Ensure that
the signal
cable is
properly
connected and
that the power
cord is
connected to
the electrical
outlet.

Turn the
printer on and
set it to

The device drivers
for your application
are not installed.

Printer that is set
up for a network is
not connected to
the network.

Printer cable is too
long, unshielded, or
defective.

Paper tray is

online.
Refer to the

printer
documentation
to install the
correct printer
driver.

Connect the
printer to the
network.

Replace the
cable.

Fill the paper

Printer
prints
garbled
information.

empty.

Correct printer
drivers are not
installed.

Cable is not
connected properly.

tray with
paper and set
the printer to
online.

Refer to the
printer
documentation
to install the
correct printer
driver.

Ensure that
the printer
signal cable is
properly
connected to
the computer.

Top of Page

Solving TouchPad/Pointing Device
Problems

The following table lists some common causes and solutions
for TouchPad/pointing device problems.

Solving Touch Pad/Pointing Device

Problems

Problem Cause Solution(s)
TouchPad or

mouse does

Incorrect or
no device

Install the device
driver and add to

not work.

External
mouse does
not work.

driver is
installed.

The device
driver is not
installed in
Windows.

Mouse is not
securely
connected
or is
connected
to an
incorrect
external
connector.

the AUTOEXEC.BAT
file or CONFIG.SYS
file.

Install the
TouchPad/mouse
driver in Windows.

Ensure that the
mouse is securely
connected to the
appropriate external
connector.

TouchPad or
mouse does
not work
even though
the device is
enabled in
Windows.

Mouse is not
enabled.

Cable not
properly
seated in
TouchPad

Enter MOUSE at the
system prompt to
activate the mouse
device driver.

Add a line in the
AUTOEXEC.BAT file
to automatically
activate the mouse
device driver each
time computer is
turned on or
restarted.

Reseat cable.

Cursor skips
or moves
abnormally

board.
Defective

TouchPad
board.

Defective
system
board.

Device
driver is not
correctly
installed in
Windows.

The
TouchPad
needs to be

Replace TouchPad
board.

Replace system
board.

Install the
appropriate device
driver in Windows.

Clean the TouchPad
with a cloth
dampened with

privacy and legal statement

when using
the
TouchPad.

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Return to Solving Minor Problems

cleaned.

alcohol or an
ammonia-based
glass cleaner. Wipe
up liquid with a dry
cloth.