Compaq Presario1600.series User Manual

							United States     January 2, 2003 
 
Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice
Preface
Product 
Description
Troubleshooting
Illustrated 
Parts Catalog
Removal & 
Repair 
Procedures
Specifications
Connector Pin 
Assignments
Battery Pack
 
Welcome to the Presario 1600 Series Portable Computer 
Maintenance & Service Guide.  This online guide is 
designed to serve the needs of those whose job it is to 
repair Compaq products.   Many of the components of 
the hardcopy MSG are contained in this online guide. The 
Notice, contains the copyright and trademark 
information.  The 
Preface shows symbol conventions and 
Technician Notes. 
This MSG will be periodically maintained and updated 
online as needed.
  
 
 
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							United States     January 2, 2003 
 
Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
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 conse\
nt 
from Compaq Computer Corporation.
© 1998 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
Compaq, Presario Registered U. S. Patent and Trademark Office.
Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft 
Corporation. 
Windows 95 is a trademark of Microsoft Corporation.
The software described in this guide is furnished under a license agreem\
ent 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 Computers
First Edition (October 1997)
Spare Part Number 298499-001
Documentation Part Number 330976-001
Compaq Computer Corporation
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							United States     January 2, 2003 
 
Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
Preface
This Maintenance and Service Guide is a troubleshooting guide that can be 
used for reference when servicing the Compaq Presario 1625/1635 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.
 
CAUTION:  Text set off in this manner indicates that failure to 
follow directions could result in damage to equipment or loss of 
data.
 
IMPORTANT:Text set off in this manner presents clarifying information or 
specific instructions.
 
NOTE:Text set off in this manner presents commentary, sidelights, or 
interesting points of information.
Technician Notes
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: 
l     Compaq Presario 1624/1625/1635/1636 Series Portable Computer 
documentation set
l     Introducing Windows 95 Guide
l     Service Training Guides
l     Compaq Service Advisories and Bulletins
l     Compaq QuickFind
l     Compaq Service Quick Reference Guide
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							United States     January 2, 2003 
 
Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
Product Description
Models and 
Features
Rear 
Connectors
Port 
Replicator
Power 
ManagementCompaq Presario 1600 Series Portable Computers are a 
new generation of multimedia portable computers with an 
innovative integrated design, outstanding audio and video, 
advanced core features, and attractive styling. This full-
function, Pentium-based series of portable computers 
allows full desktop functionality.
Compaq Presario 1600 Series Portable Computers
 
 
 
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							United States     January 2, 2003 
 
Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
Troubleshooting
WARNING:  To avoid a potential shock hazard during troubleshooting procedures, 
disconnect all power sources before removing the keyboard cover or the d\
isplay 
bezel.
This chapter covers troubleshooting information for the Compaq Presario \
Series Portable Computers. The basic steps in troubleshooting include:
1. Following the 
Preliminary Steps.
2. Running the 
Power-On Self-Test (POST).
3. If you are unable to run POST you may 
Troubleshoot Without Diagnostics.
Search for 
Error Code by number.
Perform the recommended actions in the order listed. Rerun POST after ea\
ch 
recommended action until the problem is solved and no error message 
occurs. Once the problem is solved, do not complete the remaining 
recommended actions.
NOTE: If the problem is intermittent, check the computer several times to veri\
fy that the 
problem is solved. 
 
 
 
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							United States     January 2, 2003 
 
Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
Illustrated Parts Catalog  
 
System Unit
Boards
Display
Mass Storage Devices
Cables
Miscellaneous Hardware and ScrewsThis chapter provides an illustrated parts breakdown 
and identifies the spare parts ordering number 
associated with each item(s) for Compaq Presario 
1600 Series Portable Computers.
 
 
 
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							United States     January 2, 2003 
 
Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
Removal & Replacement Procedure
This chapter presents the removal and replacement procedures for the 
computer.  
ESD
Service 
Considerations
Cable Positions
Preparing the 
Computer for 
Disassembly
Serial Number Location
Serial Number Location
Report the computer serial number to Compaq when 
requesting information or ordering spare parts. The serial 
number is displayed on the bottom of the computer.
 
 
 
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							United States     January 2, 2003 
 
Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
Specifications
This section covers the following specifications of Compaq Presario 1600\
 
Series Portable Computers: 
l     Physical and Environmental/Specifications
l     System Interrupts
l     System DMA
l     System I/O Address
l     System Memory Map
l     Memory Expansion
l     Diskette Drive
l     Hard Drive
l     CD Drive
l     Battery Pack
l     Dip Switch Settings
 
Physical and Environmental/Specifications
 U.S.Metric
Dimensions
Height
Depth
Width
 
1.96 in
12.30 in
10.08 in
 
4.95 cm
31.00 cm
25.40 cm
Weight
Model 1625
Model 1635
Model 1640 
 
7.326Ib
7.326Ib
7.326Ib 
 
3.33 kg
3.33 kg
3.33 kg
Stand-Alone (Battery Pack) 
Power Requirements
Nominal Operating
Maximum Average
Peak Operating NiMH
W @ 9.6 V
W @ 9.6 V
W @ 9.6 V
Li-ion
W @ 14.4 V
W @ 14.4 V
W @ 14.4 V
AC Power Requirements
Operating Voltage
Operating Current
Operating Frequency
Maximum Transient
 
100-240 V
0.8/0.4 A RMS
47-63 Hz
Meets IEC 801-4 and IEC801-5
1kV for 50 ns
Temperature
   
Operating 50° to 95 °F10° to 35 °C
Non-operating -4° to 140 °F-20° to 60 °C
Relative Humidity (non-
condensing)
   
Operating 10 to 90%35°C to 90%
Non-operating (tw = 38.7°C 
max) 5 to 95%
60°C to 95% 
Altitude
Operating 0 to 10,000 ft0 to 3.15 km
Non-operating 0 to 30,000 ft0 to 9.14 km
Shock
   
Operating 10 G, 11 ms, half sine 
Non operating240 G, 2 ms, half sine 
Vibration  
Operating 0.5 G 
Non-operating1.5 G 
NOTE:Applicable product safety standards specify thermal limits for plastic 
surfaces. Compaq Presario 1600 Series Portable Computers operate 
well within this range of temperatures.
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System Interrupts
Hardware IRQ System Function
IRQ0 Timer Interrupt
IRQ1 Keyboard
IRQ2 Interrupt Controller Cascade
IRQ3 0X2F8 Default Resources for Modem
IRQ4 Communications Port (COM 1)
IRQ5 ES1869 Plug and Play AudioDrive
IRQ6 Diskette Drive
IRQ7 Parallel Port (LPT 1) (default)
IRQ8 System CMOS/Real-Time Clock 
IRQ10 IRQ Holder for PCI Steering
IRQ10 PCI-1131 CardBus Controller
IRQ11 IRQ Holder for PCI Steering
IRQ11 MagicGraph128XD
IRQ11 PCI-1131 CardBus Controller
IRQ12 PS/2 TouchPad
IRQ13 Coprocessor 
IRQ14 Primary IDE Controller (dual FIFO)
IRQ14 Opti Dual PCI IDE Controller
IRQ15 Opti Dual PCI IDE Controller
IRQ15 Secondary IDE Controller (dual FIFO)
Back to top
System DMA
Hardware DMA System Function
DMA 0 ES1869 Plug and Play AudioDrive
DMA 1 ES1869 Plug and Play AudioDrive
DMA 2 Diskette Drive
DMA 4 Direct Memory Access Controller
Back to top
System I/O Address
I/O Address (Hex) System Function (Shipping Configuration)
0000h-000Fh DMA Controller # 1
0020h-0021h Interrupt Controller # 1
0022h-0024h Motherboard resources
0040h-0043h System timer
0060h-0060h Keyboard Controller
0061h-0061h System speaker
0064h-0064h Standard 101/102-Key or Microsoft Natural 
Keyboard
0070h-0071h System CMOS/real time clock
0080h-0080h Motherboard resources
0081h-008Fh DMA Controller
0092h-0092h Motherboard resources
00A0h-00A1h Programmable interrupt controller
00C0h-00DFh DMA Controller
00ECh-00EFh Motherboard resources
00F0h-00FFh Numeric data processor
0170h-0177h Secondary IDE controller (dual FIFO)
0170h-0177h Opti Dual PCI IDE Controller
01F0h-01F7h Opti Dual PCI IDE Controller
01F0h-01F7h Primary IDE controller (dual FIFO)
0201h-0201h Gameport Joystick
0220h-022Fh ES1869 Plug and Play AudioDrive
0330h-0331h ES1869 Plug and Play AudioDrive
0370h-0371h Motherboard resources
0376h-0376h Secondary IDE controller (dual FIFO)
0376h-0376h Opti Dual PCI IDE Controller
0378h-037Fh Printer Port (LPT1)
0388h-038Bh ES1869 Plug and Play AudioDrive
03B0h-03BBh MagicGraph128XD
03C0h-03DFh MagicGraph128XD
03F0h-03F5h Diskette Drive Controller
03F6h-03F6h Primary IDE controller (dual FIFO)
03F6h-03F6h Opti Dual PCI IDE Controller
03F7h-03F7h Diskette Drive Controller
03F8h-03FFh Communications Port (COM1)
040Bh-040Bh Motherboard resources
0480h-048Fh Motherboard resources
04D6h-04D6h Motherboard resources
0800h-0807h ES1869 Control Interface
0CF8h-0CFFh PCI bus
1000h-107Fh PCI-1131 CardBus Controller
FCF0h-FCF7h Primary IDE controller (dual FIFO)
FCF0h-FCF7h Opti Dual PCI IDE Controller
FCF8h-FCFFh Secondary IDE controller (dual FIFO)
FCF8h-FCFFh Opti Dual PCI IDE Controller
Back to top
System Memory Map
Memory Address System Function
00000000h-0009FFFFh System board extension for PnP BIOS 
000A0000h-000AFFFFh MagicGraph128XD
000B0000h-000BFFFFh MagicGraph128XD
000C0000h-000CBFFFh MagicGraph128XD
000CC000h-000CCFFFh PCI-1131 CardBus Controller
000CD000h-000CDFFFh PCI-1131 CardBus Controller
000E0000h-000FFFFFh System board extension for PnP BIOS
00100000h-017FFFFFh System board extension for PnP BIOS
05000000h-05040FFFh PCI-1131 CardBus Controller
FD000000h-FDFFFFFFh MagicGraph128XD
FEA00000h-FEBFFFFFh MagicGraph128XD
FED00000h-FEDFFFFFh MagicGraph128XD
FFFC0000h-FFFFFFFFh Motherboard resources
Back to top
Memory Expansion
System Memory Expansion Board 
Memory Total Memory
8-MB 16-MB 24-MB
8-MB 32-MB 40-MB
8-MB 64-MB 72-MB
16-MB 16-MB32-MB
16-MB 32-MB48-MB
16-MB 64-MB80-MB
32-MB 16-MB48-MB
32-MB 32-MB64-MB
32-MB 64-MB96-MB
64-MB 16-MB80-MB
64-MB 32-MB96-MB
64-MB 64-MB128-MB*
*Run the PHDISK utility to increase the size of the hibernation file for\
 the larger 
memory size. 
Back to top
 
 
 
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							United States     January 2, 2003 
 
Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
Connector Pin Assignments
This section provides connector pin assignment tables for Compaq Presari\
o 
1600 Series Portable Computers and the Compaq Port Replicator for select\
ed 
models. For more information on connectors, refer to 
Rear Connectors for 
connectors located on the computer and 
Port Replicator for connectors located 
on the port replicator.
NOTE:  The signals in all tables of this appendix are considered active high 
unless otherwise indicated by an asterisk (*).
n     Parallel Connector
n     Serial Connector
n     Keyboard/Mouse
n     External VGA Monitor
n     Phone Line to Wall Jack
n     Port Replicator
Parallel Connector
PinSignal PinSignal
1 Strobe* 10Acknowledge*
2 Data Bit 0 11Busy
3 Data Bit 1 12Paper Out
4 Data Bit 2 13Select
5 Data Bit 3 14Auto Linefeed*
6 Data Bit 4 15Error*
7 Data Bit 5 16Initialize Printer*
8 Data Bit 6 17Select In*
9 Data Bit 7 18-25Signal Ground
* = Active low
Back to top
Serial Connector
Connector PinSignal
1
2
3
4
5
6
7
8
9Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready Signal Ground
Data Set Ready Ready to Send Clear to Send
Ring Indicator
Keyboard/Mouse 
Connector PinSignal
1
2
3
4
5
6Data 
Not defined Ground
+5 VDC Clock 
Not defined
Back to top
External VGA Monitor
Connector PinSignal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 Red Analog
Green Analog
Blue Analog
Not connected
Ground
Ground Analog
Ground Analog
Ground Analog
Not connected
Ground
Monitor Detect
DDC2B Data
Horizontal Sync
Vertical Sync
DDC2B Clock
Back to top
Phone Line to Wall Jack 
Connector PinSignal
 1
2
3
4
5
6Unused
Unused
Tip
Ring
Unused
Unused
Back to top
Port Replicator 
Pin Signal PinSignal PinSignal PinSignal
1 N.C. 21Printer Data 0  41N.C. 61CTS
2 N.C. 22Printer Data 1 42N.C. 62DCD
3 Kb Clk 1 23Printer Data 2 43Switch A 63DSR
4 Joystick Data A 24Printer Data 3 44Switch B 64TXD
5 Kb Data 1 25Printer Data 4 45Switch C 65RTS
6 Joystick Data B 26Printer Data 5 46Switch D 66N.C.
7 Kb Clk 2 27Printer Data 6 47N.C. 67Detect
8 Joystick Data C 28Printer Data 7 48MIDI In 68N.C.
9 Kb Data 2 29Reserved 49MIDI Out 69V. Sync
10 Joystick Data D 30Reserved 50+5V 70Ground
11 Lp Select In 31Reserved 51+5V 71H. Sync
12 Lp Paper End 32Reserved 52N.C. 72Ground
13 Lp Initialize 33Adapter In 53N.C. 73Blue
14 Lp Busy 34Adapter In 54N.C. 74Ground
15 Lp Error 35Adapter In 55N.C. 75Green
16 Lp Ack 36Adapter In 56Dock ID - 76Ground
17 Lp Auto Feed 37Adapter In 57RXD 77Red
18 Lp Strobe 38Adapter In 58Lp Select 78Ground
19 DDC2BC 39N.C. 59RI 79N.C.
20 DDC2BD 40N.C. 60DTR 80N.C.
  Back to top 
 
 
 
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Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications | Connector Pin Assignments | Battery Pack
Battery Pack
This section covers the following information concerning battery pack 
operating time: 
n     Increasing Battery Pack Operating Time 
n     Minimizing the Energy Required
n     Maximizing the Energy Stored
n     Conditioning a Battery Pack 
n     Battery Charge Time By Model
n     Disposal of a Used Battery Pack
Increasing Battery Pack Operating Time
Battery pack operating time differs depending on several variables. To a\
void 
unnecessary replacement, consider the following variables when determini\
ng 
how long a charged battery pack should last: 
n     Power management settings
n     Hardware configuration
n     Software applications
n     Installed options
n     Display brightness
n     Hard drive usage
n     Changes in operating temperature
n     Type and number of installed PC Cards
NOTE: The power consumption requirements for PC Cards vary widely. Some cards \
drain the 
battery pack very rapidly.
Battery pack operating time can be increased by as much as 50 percent by\
 
controlling the energy required by the computer and the energy stored in\
 the 
battery pack.
Minimizing the Energy Required
To minimize the energy required by the computer, follow these steps: 
n     Set the power conservation levels in the Power Management utility to Maximum.
n     Customize the timeout value to work more efficiently with the applicatio\
ns. 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 guidelin\
es: 
n     Condition the battery pack at least every 30 days to improve overall bat\
tery performance.
n     Keep a battery pack in the computer when using it with AC power to suppl\
y the battery 
pack with a constant trickle charge.
n     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 discharg\
ing 
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 fast\
 charge 
arrow on the display disappears. Your battery gauge may read 100 percent\
 
for a period of time before the arrow disappears. Do not unplug the AC 
adapter until the arrow disappears.
Select Disabled in the Power menu of the BIOS Setup. The system will 
hibernate after one hour of being in suspend. By selecting Disabled, the\
 
system will not timeout and enter suspend. 
2. Unplug the AC adapter and allow the battery to drain until the comput\
er 
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. 
This table shows battery pack charge times by model.
Battery Charge Time By Model
Computer On LineOff Line
Model 1/NiMH Battery Pack 4.0 hours premature 
termination 2:00 hr
Model 2/Li ion Battery Pack  4.5 hours premature 
termination 2:50 hr
Disposal of a Used Battery Pack
In the interest of safeguarding our environment. Compaq Computer 
Corporation recommends that nickel metal hydride (NiMH) and lithium io\
n (Li 
ion) battery packs be recycled. Handle battery packs 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 exposes p\
otentially 
harmful battery components.
 
 
 
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