COMPAQ 1683, 1694 Maintenance & Service Guide

United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Compaq Presario 1600 System

Welcome to the Maintenance & Service Guide (MSG). This online guide is designed to serve the needs of those whose job it is to repair Compaq products. The Notice, contains the

Preface shows

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.

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United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

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.

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

Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation. Windows 98 is a trademark 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 Series Portable Computer

First Edition (March 1999) Compaq Computer Corporation

United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Preface

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

Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 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.

IMPORTANT:

NOTE:

Text set off in this manner presents commentary, sidelights, or interesting points of information.

CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of data.

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, the computer serial number should be provided to Compaq. The serial number is located on the bottom of the computer.

Locating Additional Information

The following documentation is available to support this product:

● Compaq Presario Series Portable Computer documentation set

● Introducing Windows 98 Guide

● Service Training Guides

● Compaq Service Advisories and Bulletins

● Compaq QuickFind

● Compaq Service Quick Reference Guide

privacy and legal statement

United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Specifications

This chapter covers the following specifications of Compaq Presario Series Portable Computers:

● Physical and Environmental

● System Interrupts

● System DMA

● System I/O Address

● System Memory Catalog

● Display

● Memory Expansion

● Diskette Drive

● Hard Drive

● DVD or CD Drive

● Battery Pack

Physical and Environmental

Computer Specifications

Dimensions

Height Depth Width

Weight

Model 1683 Model 1685 Model 1687 Model 1688 Model 1690

Stand-Alone (Battery Pack)

U.S. Metric

1.97 in

12.32 in

10.12 in

(Data not available)

7.19lbs

7.19 lbs

7.36 lbs

7.76 lbs

5.0 cm

31.3 cm

25.7 cm

(Data not available) 3260 g 3260 g 3340 g 3520 g

Li Ion

Power Requirements

Nominal Operating Voltage Maximum Operating Power

W @ 14.8 VDC W @ 56.5 W W @ 58.5 W

Peak Operating Power

AC Power Requirements

Operating Voltage Operating Current Operating Frequency Maximum Transient

Temperature

Operating 41° to 95 °F 5° to 35 °C Nonoperating -4° to 140 °F -20° to 60 °C

Relative Humidity (Non-condensing)

Operating 10 to 90% 35°C to 90% Nonoperating (tw = 38.7°C max) 5 to 95% 60°C to 95%

Altitude

(Information not available)

Operating 0 to 10,000 ft 0 to 3.15 km Nonoperating 0 to 30,000 ft 0 to 10.14 km

Shock

Operating 10 G, 11 ms, half

Non operating 240 G, 2 ms, half

Vibration

Operating 0.55 G, 0.25

Nonoperating 1.5 G, 0.25 Oct/Min

Applicable product safety standards specify thermal limits for plastic surfaces.

NOTE:

Compaq Presario Series Portable Computers operate well within this range of temperatures.

sine

Oct/Min sweep rate

sweep rate

System Interrupts

Hardware IRQ System Function

IRQ0 IRQ1 IRQ2 IRQ3 IRQ Holder for PCI Steering

IRQ3 ALi PCI to USB Open Host Controller IRQ4

IRQ5 IRQ Holder for PCI Steering

System Timer

Standard 101/102-Key or Microsoft Natural Keyboard Programmable interrupt controller

Communications Port (COM1)

System Interrupts

IRQ5 ESS SOLO-1 PCI AudioDrive IRQ5 IRQ Holder for PCI Steering IRQ6 Standard Floppy Disk Controller

IRQ7 Printer Port (LPT1) IRQ8 System CMOS / real-time clock

IRQ9 RAGE LT PRO AGP 2X (English)

IRQ9 IRQ Holder for PCI Steering IRQ10 Texas Instruments PCI-1211 CardBus Controller IRQ10 IRQ Holder for PCI Steering IRQ10

IRQ12 Synaptics PS/2 TouchPad IRQ13 Numeric data processor IRQ14

Lucent 56K V.90 PCI DF Modem

ALi M5229 PCI Bus Master IDE Controller

IRQ14 Primary IDE controller (dual fifo) IRQ15

IRQ15 Secondary IDE controller (dual fifo)

System DMA

Hardware DMA System Function

0 1 ESS SOLO-1 DOS Emulation

2 Standard Floppy Disk Controller 3 (free)

ALi M5229 PCI Bus Master IDE Controller

System DMA

(free)

4 Direct memory access controller 5 (free)

System I/O Address

I/O Address (Hex) System Function (Shipping Configuration)

0000 - 000Fh Direct Memory Access Controller 0020h - 0021h Programmable Interrupt Controller 0040h - 0043h System Timer

0060h - x0060h Standard 101/102-Key or Microsoft Natural Keyboard 0061h - x0061h System Speaker 0064h - x0064h Standard 101/102-Key or Microsoft Natural Keyboard

System I/O Address

0070h - 0071h System CMOS/Real Time Clock 0080h - 0080h Motherboard Resources 0081h - 008Fh Direct Memory Access controller 0092h - 0092h Motherboard Resources

00A0h - 00A1h Programmable Interrupt Controller

00B1h - 00B3h Motherboard Resources

00C0h - 00DFh Direct Memory Access controller 00EAh - 00EBh Motherboard Resources

00F0h - 00FFh Numeric Data Processor

0100h - 010Fh Motherboard Resources

0170h - 0177h 0170h - 0177h Secondary IDE Controller (dual fifo)

ALi M5229 PCI Bus Master IDE Controller

01F0h - 01F7h ALi M5229 PCI Bus Master IDE Controller

0200h - 0203h Gameport Joystick

0220h - 022Fh ESS SOLO-1 DOS Emulation

0330h - 0331h ESS SOLO-1 DOS Emulation 0376h - 0376h Secondary IDE Controller (dual fifo) 0376h - 0376h ALi M5229 PCI Bus Master IDE Controller

0378h - 037Fh Printer Port (Ltp1)

0388h - 038Bh ESS SOLO-1 DOS Emulation 03B0h - 03BBh RAGE LT PRO AGP 2X (English) 03C0h - 03DFh RAGE LT PRO AGP 2X (English)

03F0h - 03F5h Standard Floppy Disk Controller 03F6h - 03F6h Primary IDE Controller (dual fifo) 03F6h - 03F6h ALi M5229 PCI Bus Master IDE Controller 03F7h - 03Fh7 Standard Floppy Disk Controller

03F8h - 03FFh Communication Port (COM1)

040Bh - 040Bh Motherboard Resources

040D0h - 04D1h Motherboard Resources

04D6h - 04D6h Motherboard Resources

0CF8h - 0CFFh PCI Bus 1000h - 103Fh Motherboard Resources 1040h - 105Fh Motherboard Resources 1060h - 106Fh ESS SOLO-1 PCI AudioDrive 1070h - 107Fh ESS SOLO-1 PCI AudioDrive 1400h - 14FFh Lucent 56K V.90 PCI DF Modem 1800h - 183Fh ESS SOLO-1 PCI AudioDrive 1840h - 1847h 1840h - 184Fh 1848h - 184Fh

Primary IDE Controller (dual fifo) ALi M5229 PCI Bus Master IDE Controller Secondary IDE Controller (dual fifo)

1850h - 1853h ESS SOLO-1 PCI AudioDrive 1854h - 1857h ESS SOLO-1 PCI AudioDrive 1858h - 185Fh Lucent 56K V.90 PCI DF Modem

2000h - 2FFFh PCI Standard PCI-to-PCI Bridge

2000h - 20FFh

System Memory Catalog

Memory Address System Function

00000000h - 0009FFFFh System Board Extension for PnP BIOS 000A0000h - 000AFFFFh RAGE LT PRO AGP 2X (English) 000B0000h - 000BFFFFh RAGE LT PRO AGP 2X (English)

RAGE LT PRO AGP 2X (English)

System Memory Catalog

000C0000h - 000CBFFFh RAGE LT PRO AGP 2X (English) 000DC000h - 000DFFFFh

000E0000h - 000FFFFFh System Board Extension for PnP BIOS 00100000h - 01FFFFFFh System Board Extension for PnP BIOS 0C000000h - 0C000FFFh Texas Instruments PCI-1211 CardBus Controller E0000000h - E3FFFFFFh ALi M1541 AGP System Controller FC000000h - FCFFFFFFh ALi PCI to USB Open Host Controller FC001000h - FC0010FFh

FC100000h - FDFFFFFFh

FC100000h - FC100FFFh RAGE LT PRO AGP 2X (English) FC120000h - FC13FFFFh RAGE LT PRO AGP 2X (English)

Motherboard Resources

Lucent 56K V.90 PCI DF Modem PCI Standard PCI-to-PCI bridge

FD000000h - FDFFFFFFh RAGE LT PRO AGP 2X (English) FFFC0000h - FFFFFFFFh Motherboard Resources

Display

Dimensions

Height Width

Diagonal Size Mounting Number of Colors

12.1" (Diagonal) TFT Display with LVDS U.S. Metric

7.83"

10.8"

12.1" 30.7 cm Internal 16 M

19.9 cm

25.7 cm

Contrast Ratio Brightness Pixel Resolution

Pitch Format Configuration

Backlight Character Display

Total Power Consumption

(Information not available)

13.3" (Diagonal) TFT Display with LVDS

Typical 150:1 Over 120 cd/m~3

0.30 x 0.30 mm 800 x 600 RGB Stripe

Edge Light 80 x 25, 80 x 50

5.4 W (max)

U.S. Metric

Dimensions Height Width

Diagonal Size Mounting Number of Colors Contrast Ratio Brightness

Pixel Resolution

Pitch Format Configuration

Backlight Character Display

Total Power Consumption

14.1" (Diagonal) TFT Display with LVDS

Dimensions Height Width

Diagonal Size 14.1" 35.8 cm Mounting Internal Number of Colors 64 K Contrast Ratio Typical 150:1 Brightness Over 120 cd/m~3

Pixel Resolution

Pitch Format Configuration

U.S. Metric

8.43"

11.2"

0.279 x 0.279 mm 1024 x 768 RGB Stripe

21.42 cm

28.56 cm

Backlight Character Display

Total Power Consumption 6.6 W (max)

Memory Expansion

Base System Memory Expansion Board Memory Total Memory

32-MB 32-MB 32-MB 64-MB 64-MB

Edge Light 80 x 25

32-MB 64-MB 64-MB 96-MB

128-MB 160-MB

32-MB 96-MB 64-MB 128-MB

Diskette Drive

Diskette Size Light Height

Bytes per Sector:

Sectors per Track High Density Low Density

Tracks per Side

High Density Low Density

64-MB

128-MB 192-MB

Diskette Drive

3.5 in None .5" / 1.27 cm

512 18 (1.44-MB) / 15 (1.2-MB)

80 (1.44-MB) / 80 (1.2-MB) 80

Access Times

Track-to-Track (high/low) Average (ms) Setting Time (ms) Latency Average

Number of Read/Write Heads

Hard Drive

Capacity Per Drive Drive Type

3 ms/6 ms 94 ms/174 ms 15 ms 100

Hard Drives

6.4-GB 4.8-GB

Not Available

6.4-GB 4.8-GB 65 65

Physical Configuration

Cylinders Heads Sectors per track Bytes per sector

Logical Configuration

Cylinders Heads Sectors per track Bytes per sector

Seek Times (Typical, Including settling in ms) Track to Track Average Maximum Rotational Speed

Transfer Rate

Media At interface

Sector Interleave

8647 6 240-250 512

13424 15 63 512

2.5 ms 13 ms

23 ms 4200 rpm

60.8 to 107.2 Mb/s

33.3 MB/s 1:1 1:1

8647 6 240-250 512

7944 15 63 512

2.5 ms 13 ms (read)

23 ms 4200 rpm

60.8 to 107.2 Mb/s

33.3 MB/s

Buffer Size

DVD or CD Drive

Applicable Disk

Center Hole Diameter

Disc Diameter Disc Thickness Track Pitch

512 KB 512 KB

CD Drive

24x CD Drive

CD-DA, CD-ROM, CD-ROM XA, CD-1, Photo CD (multisession), Video CD, CD-R, CD-Extra (CD+), CD-G, CD-RW

.6" / 15 mm 12 cm, 8 cm

1.2 mm

1.6 um

Access Time

(typical, including setting)

Audio Output Level

Line out Headphone

Cache Buffer Data Transfer Rate

(typical, including setting)

110 ms

+/- 0.27 Vrms none

128 KB 3600 KB/s

150 KB/s

16.66 MB/sec

Startup Time Stop time

< 8 sec < 4 sec

DVD Drive

Applicable Disk

Center Hole Diameter Access Time

(typical, including setting)

Disc Thickness Track Pitch Laser

Beam Divergence

Audio Output Level

Line out Headphone

Cache Buffer Data Transfer Rate

(typical, including setting)

DVD-ROM, CD-ROM, CD-XA, CD-I, Photo CD, Multisession, Audio, CD-R, CD-RW

6" / 15mm

< 100 ms (CD) < 150 ms (DVD)

4.7", 3.15" / 12cm, 8cm

0.74um (DVD)

.05" / 1.2cm

1.0 volts RMS 0 - 0.6 volts RMS

512 KB/s (CD)

12,000 - 3,000 KB/s (CD) 2705 KB/s (DVD)

Startup Time Stop time

Battery Pack

Dimensions

Height Length Width

Weight

< 5 sec < 3 sec

Battery Pack

Lithium Ion (Li ion) *

US Metric

.81 in

3.05 in

5.69 in

0.85 Ib

2.05 cm

7.75 cm

14.45 cm .39 kg

Battery Pack Operating Time Energy

Voltage Amp-hour capacity Watt-hour capacity

Environmental Requirements

Operating Temperature Non-operating Temperature

2 to 3 hours

14.8 V

3.0 Ah

44.4 Wh

32° F to 113 F

-4° F to 140 ° F

0° to 45° C

-20° to 60° C

Modem

Compliance

Data Compression

ITU v.90~6 standard Full ITU-T V.34 compliance Full compliance with: V.21, V.22, V.22bis, V.23, V.32, V.32bis, Bell 103, Bell 212A

V.42bis/MNP 5

Fax Modulation

Command Set

Cable

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V. 17 V. 21 (Group III Compatible) V.29 V.27Ter

Hayes AT Class 1 Fax

6 Ft. RJ-11 telephone cable

United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Parts Catalog

System Unit System Boards Display

Assembly Mass Storage

Devices Miscellaneous

Cable Kit Miscellaneous

For the Compaq Presario 1600 Series of Portable Computers listed above, this section of the Maintenance and Service Guide provides the following information:

● An illustrated breakdown of components

● Identification of spare parts and the ordering number associated

with each item(s)

Click on the appropriate categories listed to the left.

Index

Hardware Kit Miscellaneous

Plastics Kit Miscellaneous

Parts Documentation

and Software

privacy and legal statement

United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Removal and Replacement

Removal

Sequence

Cables and Connectors

Battery Pack Palmrest

Cover with Touch Pad

Heatspreader Keyboard

Introduction

Prior to conducting any removal and/or replacement

IMPORTANT:

Note:

procedures, you should review and fully understand the section titled "

The Internal Ethernet Card is Not Available for computer models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and

1694. The Ethernet Plug was removed on later models.

Before You Begin".

Index

Processor Hard Drive DVD or

CD Drive Battery

Charger Board

Modem Display Panel

Assembly Upper CPU

Cover Network

Interface Card

Speaker Assembly

Diskette Drive

Fan Assembly System Board Dip Switch

Settings Memory

Module

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United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Preliminary Steps

Clearing the Power-On Password

Power-On Self Test (POST)

Compaq Diagnostics

Diagnostic Error Codes

Solving Minor Problems

Contacting Compaq Support

Introduction

This section covers troubleshooting information for the above listed Compaq Presario 1600 Series Portable Computers. The basic steps in troubleshooting include:

1. Follow the Preliminary Steps.

2. Run the Power-On Self-Test (POST).

3. Follow the recommended actions described in the diagnostic tables, if you are unable to run POST or if POST displays an error message.

When following the recommended actions in the Sections on POST and Diagnostic Error Codes perform them in the order listed. Rerun POST after each recommended action until the problem is solved and no error message occurs. Once the problem is solved, do not complete the remaining recommended actions.

Index

NOTE:

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If the problem is intermittent, check the computer several times to verify that the problem is solved

United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Battery Pack Operating Time

This appendix covers the following information concerning battery pack operating time:

● Increase battery pack operating time

● Conditioning a battery pack

● Disposal of a used battery pack

Increasing Battery Pack Operating Time

Battery pack operating time differs depending on several variables. To avoid unnecessary replacement, consider the following variables when determining how long a charged battery pack should last:

● Power management settings

● Hardware configuration

● Software applications

● Installed options

● Display brightness

● Hard drive usage

● Changes in operating temperature

● Type and number of installed PC Cards

The power consumption requirements for PC

NOTE:

Cards vary widely. Some cards drain the battery pack very rapidly.

Minimizing the Energy Required

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.

To minimize the energy required by the computer, follow these steps:

● Set the power conservation levels in the Power Management utility to

Maximum.

● Customize the timeout value to work more efficiently with the applications.

The amount 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.

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 LED light on

the display stops blinking. Your battery gauge may read 100 percent for a period of time before LED light on the display stops blinking. Do not unplug the AC adapter until the arrow 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. Your battery is re-conditioned.

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

The table below shows the approximate battery pack charge times.

Approximate Battery Charge Time

Computer On Line Off Line

NiMH Battery Pack 4.0 hours premature termination 2:00 hrs Li ion Battery Pack 4.5 hours premature termination 2:50 hrs

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

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privacy and legal statement

United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Product Description

Models and Features

Controls and Lights

Front Bezel Lights

Front Bezel Buttons

Left Side Components

Right Side Components

Underside of Unit

Rear Connectors Power

Management for Windows 98

Index

The Compaq Presario 1600 Series Computers, the new generation of multimedia portables, present an innovative and integrated design, outstanding audio and video, advanced core features, and attractive styles. This fully functional AMD-K6based portable computer allows full desktop versatility.

privacy and legal statement

United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Index

Connector Pin Assignments

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

NOTE: The signals in all tables of this appendix are considered "active high" unless otherwise indicated by an asterisk (*).

● Parallel Connector

● Serial Connector

● Keyboard/Mouse

● External VGA Monitor

● Universal Serial Bus

● Modem

Parallel Connector

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

Carrier Detect

Receive Data

Transmit Data

Data Terminal Ready

Signal Ground

Data Set Ready

Ready to Send

Clear to Send

Ring Indicator

Keyboard/Mouse

Connector Pin Signal

Data 1

Data 2

External VGA Monitor

Ground

+5 V

Clock 1

Clock 2

Connector Pin Signal

Red Analog

Green Analog

Blue Analog

Not connected

Ground

Ground Analog

Not connected

Ground

Monitor Detect

Universal Serial Bus

DDC2B Data

Horizontal Sync

Vertical Sync

DDC2B Clock

Connector Pin Signal

+5V Data -

Data +

Ground

Modem

Connector Pin Signal

Unused

Tip

Ring

Unused

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United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Before You Begin

Electrostatic Discharge

Service Considerations

Preparation for Disassembly

Index

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Report the computer serial number to Compaq when

requesting information or ordering spare parts.

United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Before You Begin

Electrostatic Discharge

Service Considerations

Preparation for Disassembly

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 be affected at all and will work perfectly throughout a normal cycle. Although, it may function normally for a while, then degrade in the internal layers, reducing its life expectancy.

Index

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.

Generating Static

The table shows how different activities generate static electricity and at different electrostatic voltage levels.

Typical Electrostatic Voltages

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

Relative Humidity

Motions of bench worker 6,000 V 800 V 400 V Removing DIPS from plastic

2,000 V 700 V 400 V

tubes Removing DIPS from vinyl

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

trays Removing DIPS from

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

Styrofoam Removing bubble pack from

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

PCBs Packing PCBs in foam-lined

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

box NOTE: 700 volts can degrade

a product.

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United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Before You Begin

Electrostatic Discharge

Service Considerations

Preparation for Disassembly

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

To service the computer, you need the following:

● Compaq screwdriver kit (Spare Part No. 161946-001)

● Torx T-9 screwdriver

● 3/16-inch and 5mm nut drivers (for screwlocks and

standoffs)

● Small, standard screwdriver

● Small, Phillips screwdriver

● Diagnostics software

Index

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.

IMPORTANT:

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As each subassembly is removed from the computer, it should be placed away from the work area to prevent damage.

United States January 3, 2003

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Before You Begin

Electrostatic Discharge

Service Considerations

Preparation for Disassembly

Preparing the Computer for Disassembly

1. Disconnect AC power and any external devices.

2. Remove the battery pack.

3. Remove any PC Cards.

IMPORTANT:

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

Index

NOTE:

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 pack for the Compaq Presario 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.

The Compaq Presario Series Portable Computers have several screws of various sizes which are not interchangeable. Care must be taken during reassembly to ensure that the correct screws are used in their correct location. During removal please keep respective screws with their associated sub-assembly.

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United States January 3, 2003

(Models: 1685, 1687, 1688, 1690, 1692, 1693, 1694) 141706-001

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

Before You Begin Specifications Parts Catalog

Removal Sequence Troubleshooting Battery Operations

Product Description Pin Assignments

Parts Catalog

System Unit

System Boards Display

Assembly Mass Storage

Devices Miscellaneous

Cable Kit Miscellaneous

System Unit

Index

Part Description Spare Part Number

1. Keyboard

2. Palmrest Cover w/TouchPad and Button Board (Models: 1687, 1688, 1690, 1693, 1694)

2. Palmrest Cover w/TouchPad and Button Board (Models: 1683, 1685, 1688, 1692)

3. Upper CPU Cover w/Power Switch

4. Speaker Assembly w/Cables

142654-001

142653-001

141846-001 148108-001

Hardware Kit Miscellaneous

Plastics Kit Miscellaneous

Parts Documentation

and Software

5. Base Enclosure

6. Battery Pack L ion Enhancement (Models: 1683, 1685, 1687, 1688,

1690)

6. Battery Pack L ion Enhancement (Models: 1692, 1693, 1694)

141845-001 388647-001

138-184-001

1600 Series CTO Description Spare Part Number

1. Keyboard

2. Palmrest Cover w/TouchPad and

Button Board

3. Battery

4. Port Replicator

EAB 142654-001 sLiON

400384-001

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+ 35 hidden pages