Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
Pin Assignments | Battery Pack Operations
Procedures
Specifications
Connector Pin
Assignments
Battery Pack
Operations
Welcome to the Maintenance & Service Guide (MSG). This online
guide is designed to serve the needs of those whose job it is to repair
Compaq products. Many of the components of the hardcopy MSG are
contained in this online guide. The Notice, contains the copyright and
trademark information. The Preface shows symbol conventions,
Technician Notes and Serial Number locations on the unit.
This MSG will be periodically maintained and updated online as
needed. For content comments or questions, contact the Editor.
To report a technical problem, contact your Regional Support Center
or IM Help Center.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
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.
Ó 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 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 Computers
First Edition (June 1998)
Compaq Computer Corporation
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Preface
This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when
servicing the Compaq Presario 1600 Series Portable Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1600
Series Portable Computers without notice.
Symbols
The following words and symbols mark special messages throughout this guide.
WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm or loss of
life.
CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of data.
IMPORTANT:
Text set off in this manner presents clarifying information or specific instructions.
Text set off in this manner presents commentary, sidelights, or interesting points of
information.
NOTE:
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:
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●
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Compaq Presario 1600 Series Portable Computer documentation set
Introducing Windows 98 Guide
Service Training Guides
Compaq Service Advisories and Bulletins
Compaq QuickFind
Compaq Service Quick Reference Guide
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
Pin Assignments | Battery Pack Operations
Compaq
Presario
1600 Series
Portable
Computer is
a
continuation
of the new
generation
of
multimedia
portable
computers
with an
Rear
Connectors
Port
innovative
integrated
design,
outstanding
audio and
video,
Replicator
Power
Management
for Windows
98
advanced
core
features,
and
attractive
styling. This
full-
function,
Pentium II -
based series
of portable
computers
allows full
desktop
functionality
and
additional
connectivity
via the
optional
port
replicator.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
This section covers troubleshooting information for the
Compaq Presario 1600 Series Portable Computers. The
basic steps in troubleshooting include:
1. Follow the Preliminary Steps.
2. Run the Power-On Self-Test
(POST).
Diagnostic Error Codes
Troubleshooting
Without Diagnostics
actions described in the
diagnostic tables, if you are
unable to run POST or if POST
displays an error message.
Solving Minor
Problems
Contacting Compaq
Support
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.
If the problem is
intermittent, check the
computer several times to
NOTE:
verify that the problem is
solved.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
Pin Assignments | Battery Pack Operations
This section provides an breakdown and identifies the spare parts
ordering number associated with each item(s) for the Compaq Presario
1600 Series Portable Computers.
Cables
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Removal and Replacement Procedures
This section explains the removal and replacement procedures for the
Report the computer
requesting information or ordering spare parts.
serial number to Compaq when
Cover
Fan Assembly
System Board
Memory
Module
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
This chapter covers the following specifications of Compaq Presario 1600 Series Portable
Computers:
●
●
●
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●
●
●
Hard drive
CD drive
Battery pack
Physical and Environmental
Computer Specifications
U.S.
Metric
Dimensions
Height
Depth
1.97 in
12.20 in
10.08 in
4.95 cm
31.00 cm
25.40 cm
Width
Weight
7.326 Ib
7.326 Ib
3.33 kg
3.33 kg
Model 1650
Model 1655
Stand-Alone (Battery Pack)
Power Requirements
NiMH
Li-ion
W @ 9.6 V
W @ 9.6 V
W @ 9.6 V
W @ 14.4 V
W @ 14.4 V
W @ 14.4 V
Nominal Operating
Maximum Average
Peak Operating
AC Power Requirements
Operating Voltage
Operating Current
Operating Frequency
100-240 V
0.8/0.4 A RMS
47-63 Hz
Meets IEC 801-4 and IEC801-5
1kV for 50 ns
Maximum Transient
Temperature
Operating
50° to 95 °F
-4° to 140 °F
10° to 35 °C
-20° to 60 °C
Nonoperating
Relative Humidity
(noncondensing)
Operating
10 to 90%
5 to 95%
35°C to 90%
60°C to 95%
Nonoperating (tw = 38.7°C max)
Altitude
Operating
0 to 10,000 ft
0 to 30,000 ft
0 to 3.15 km
0 to 9.14 km
Nonoperating
Shock
Operating
10 G, 11 ms, half sine
240 G, 2 ms, half sine
Non operating
Vibration
Operating
0.5 G
1.5 G
Nonoperating
NOTE: Applicable product safety standards specify thermal limits for plastic surfaces.
Compaq Presario 1600 Series Portable Computers operate well within this range of
temperatures.
System Interrupts
System Interrupts
Hardware IRQ
IRQ0
System Function
Timer Interrupt
IRQ1
Keyboard
IRQ2
Interrupt Controller Cascade
Internal Modem
IRQ3
IRQ4
Communication Port (COM1)
Audio Controller
IRQ5
IRQ6
Diskette Drive
IRQ7
Parallel Port (LPT 1) (default)
System CMOS/Real-Time Clock
IRQ Holder for PCI Steering
PCI-1131 CardBus Controller
IRQ Holder for PCI Steering
IRQ Holder for PCI Steering
PCI-1131 CardBus Controller
Video Controller
IRQ8
IRQ9
IRQ9
IRQ9
IRQ9
IRQ9
IRQ9
IRQ11
IRQ11
IRQ12
IRQ13
IRQ14
IRQ14
IRQ15
IRQ15
Intel PCI to USB Universal Host Controller
IRQ Holder for PCI Steering
PS/2 TouchPad/Mouse
Numeric data processor
Intel PCI Bus Master IDE Controller
Primary IDE Controller (dual fifo)
Intel PCI Bus Master IDE Controller
Secondary IDE Controller (dual fifo)
System DMA
System DMA
System Function
Audio Controller
Audio Controller
Diskette Drive
Hardware DMA
DMA 0
DMA 1
DMA 2
DMA 4
DMA Controller
System I/O Address
System I/O Address
System Function (Shipping Configuration)
DMA Controller
I/O Address (Hex)
0000h-000Fh
0020h-0021h
0040h-0043h
0060h-0060h
0061h-0061h
0064h-0064h
Interrupt Controller
System timer
Keyboard Controller
System speaker
Standard 101/102-Key or Microsoft Natural
Keyboard
0070h-0071h
0080h-0080h
0081h-008Fh
00A0h-00A1h
00C0h-00DFh
00ECh-00EFh
00F0h-00FFh
0170h-0177h
0170h-0177h
01F0h-01F7h
System CMOS/real time clock
Motherboard resources
DMA Controller
Programmable interrupt controller
DMA
Motherboard resources
Numeric data processor
Intel PCI Bus Master IDE Controller
Secondary IDE Controller (dual fifo)
Intel PCI Bus Master IDE Controller
01F0h-01F7h
0201h-0201h
0220h-022Fh
02F8h-02FFh
0330h-0331h
0376h-0376h
0376h-0376h
0378h-037Fh
0388h-038Bh
03B0h-03BBh
03C0h-03DFh
03F0h-03F5h
03F6h-03F6h
03F6h-03F6h
03F7h-03F7h
03F8h-03FFh
04D0h-04D1h
0800h-0807h
0CF8h-0CFFh
2180h-218Fh
8000h-803Fh
FCD0h-FCD7h
FCD0h-FCDFh
FCD8h-FCDFh
FCE0h-FCFFh
Primary IDE Controller (dual fifo)
Gameport Joystick
ES1869 Plug and Play AudioDrive
Compaq Presario 56K-DF
ES1869 Plug and Play AudioDrive
Secondary IDE controller (dual fifo)
Intel PCI Bus Master IDE Controller
Printer Port (LPT1)
ES1869 Plug and Play AudioDrive
Video Controller
Video Controller
Standard Floppy Disk Controller
Intel PCI Bus Master IDE Controller
Primary IDE controller (dual fifo)
Standard Floppy Disk Controller
Communications Port (COM1)
Motherboard resources
ES1869 Control Interface
PCI bus
Motherboard resources
Motherboard resources
Primary IDE controller (dual fifo)
Intel PCI Bus Master IDEController
Secondary IDE controller (dual fifo)
Intel PCI to USB Universal Host Controller
System Memory Catalog
System Memory Catalog
System Function
Memory Address
00000000h-0009FFFFh
000A0000h-000AFFFFh
000B0000h-000BFFFFh
000C0000h-000CBFFFh
000DC000h-000FFFFFh
00100000h-03FFFFFFh
05000000h-05000FFFh
05001000h-05001FFFh
80000000h-803FFFFFh
FD000000h-FDFFFFFFh
FEA00000h-FEBFFFFFh
FED00000h-FEDFFFFFh
FFF80000h-FFFFFFFFh
System board extension for PnP BIOS
Graphics Controller
Graphics Controller
Graphics Controller
System board extension for PnP BIOS
System board extension for PnP BIOS
PCI-1131 CardBus Controller
PCI-1131 CardBus Controller
Intel Pentium(r) II Processor to PCI bridge
Graphics Controller
Graphics Controller
Graphics Controller
Motherboard resources
Display (Information not available)
13.3" (Diagonal) TFT Display
U.S.
Metric
Dimensions
Height
Width
Information
not available
Information
not available
Display Dimensions
Information
not available
Information
not available
Width
Height
Depth
Weight
Information
not available
Information
not available
Contrast Ratio
Information
not available
Information
not available
Brightness
Information
not available
Information
not available
Total Power Consumption
Information
not available
Information
not available
12.1" (Diagonal) TFT Display
U.S.
Metric
Dimensions
Height
Width
Information
not available
Information
not available
Display Dimensions
Information
not available
Information
not available
Width
Height
Depth
Weight
Information
not available
Information
not available
Contrast Ratio
Brightness
Information
not available
Information
not available
Information
not available
Information
not available
Total Power Consumption
Information
not available
Information
not available
Memory Expansion
Memory Expansion
System Memory
Expansion Board
Memory
Total Memory
32-MB
32-MB
32-MB
16-MB
32-MB
64-MB
48-MB
64-MB
96-MB
Diskette Drive (Information not available)
Diskette Drive
Capacity per Diskette (High/Low)
Diskette Size
Information not available
Information not available
Information not available
Number of LED Indicators
(Read/Write)
Number of Drives Supported
Drive Rotation (rpm)
Transfer Rate (Kbps)
Bytes per Sector
Information not available
Information not available
Information not available
Information not available
Information not available
Information not available
Information not available
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)
Information not available
Information not available
Number of Read/Write Heads
Hard Drive (Information not available)
Hard Drives
5.0-GB
4.0-GB
Capacity Per Drive
Drive Type
Information not available Information not available
Information not available Information not available
Information not available Information not available
Logical Configuration
Cylinders
Heads
Sectors per track
Bytes per sector
Seek Times
(Typical, Including settling in
ms)
Single track
Average
Information not available Information not available
Information not available Information not available
Full stroke
Transfer Rate
At interface
CD Drive (Information not available)
CD Drive
24× CD Drive
Dimensions
Weight
Information not available
Information not available
Information not available
Information not available
Rotational Speed
Typical Transfer Rate
Sustained Data Transfer Rate
Access Time
Information not available
Average Random Access Time
Spin Up time
Information not available
Information not available
Data Buffer Capacity
Battery Pack
Battery Pack
Nickel Metal Hydride (NiMH) Lithium Ion (Li ion) *
Dimensions
Height
Length
0.8 in (20.3 mm)
5.7 in (145 mm)
3.1 in (78.7 mm)
0.8 in (20.3 mm)
5.7 in (145 mm)
3.1 in (78.7 mm)
Width
Weight
1.01 Ib (458.1 g)
2:30 hr
0.90 Ib (408.2 g)
3:00 hr
Battery Pack Operating
Time
Energy
Nominal Open Circuit Voltage
Capacity
Power
9.6 V
3200mAH
40 W
14.4 V
2500mAH
40 W
Environmental
Requirements
Operating Temperature
Non-operating Temperature
Charging Temperature
32° F (0-50° C)
-20° C -60° C
5° C-45° C
32° F (0-50° C)
-20° C -60° C
5° C-45° C
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Connector Pin Assignments
This appendix provides connector pin assignment tables for Compaq Presario 1600
Series Portable Computers. For more information on connectors, refer to the section
on Rear Connectors.
NOTE: The signals in all tables of this appendix are considered active high unless
otherwise indicated by an asterisk (*).
Parallel Connector
Pin
1
Signal
Pin
10
11
12
13
14
15
16
17
Signal
Strobe*
Acknowledge*
Busy
2
Data Bit 0
Data Bit 1
Data Bit 2
Data Bit 3
Data Bit 4
Data Bit 5
Data Bit 6
Data Bit 7
3
Paper Out
Select
4
5
Auto Linefeed*
Error*
6
7
Initialize Printer*
Select In*
8
9
18-25 Signal Ground
* = Active low
Serial Connector
Connector
Pin
Signal
1
Carrier Detect
2
3
4
5
6
7
8
9
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
1
Data
2
3
4
5
6
Not defined
Ground
+5 VDC
Clock
Not defined
External VGA Monitor
Connector
Pin
Signal
1
Red Analog
2
Green Analog
Blue Analog
Not connected
Ground
3
4
5
6
Ground Analog
Ground Analog
Ground Analog
Not connected
Ground
7
8
9
10
11
12
13
14
15
Monitor Detect
DDC2B Data
Horizontal Sync
Vertical Sync
DDC2B Clock
Universal Serial Bus
Connector
Pin
Signal
1
Ground
2 D+
3 D-
4 Power
Port Replicator
Pin Signal
Pin Signal
Pin Signal
Pin Signal
61 CTS
1
2
3
4
5
6
7
8
9
N.C.
21 Printer Data 0 41 N.C.
22 Printer Data 1 42 N.C.
23 Printer Data 2 43 Switch A
N.C.
62 DCD
Kb Clk 1
63 DSR
Joystick Data A 24 Printer Data 3 44 Switch B
Kb Data 1 25 Printer Data 4 45 Switch C
Joystick Data B 26 Printer Data 5 46 Switch D
Kb Clk 2 27 Printer Data 6 47 N.C.
Joystick Data C 28 Printer Data 7 48 MIDI In
64 TXD
65 RTS
66 N.C.
67 Detect
68 N.C.
Kb Data 2
29 USB 0 -
49 MIDI Out
50 +5V
69 V. Sync
70 Ground
71 H. Sync
72 Ground
73 Blue
10 Joystick Data D 30 USB 0 +
11 Lp Select In
12 Lp Paper End
13 Lp Initialize
14 Lp Busy
31 USB 1 -
32 USB 1+
33 Adapter In
34 Adapter In
35 Adapter In
36 Adapter In
37 Adapter In
38 Adapter In
39 N.C.
51 +5V
52 N.C.
53 N.C.
54 N.C.
74 Ground
75 Green
76 Ground
77 Red
15 Lp Error
55 N.C.
16 Lp Ack
56 Dock ID -
57 RXD
17 Lp Auto Feed
18 Lp Strobe
19 DDC2BC
58 Lp Select
59 RI
78 Ground
79 N.C.
20 DDC2BD
40 N.C.
60 DTR
80 N.C.
Modem
Pin
Connector
Signal
1
2
3
4
5
6
Unused
Unused
Tip
Ring
Unused
Unused
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Battery Pack Operating Time
This appendix covers the following information concerning battery pack operating time:
●
●
●
Increase battery pack operating time
Conditioning a battery pack
Disposal of a used battery pack
Increasing Battery Pack Operating Time
Battery pack operating time differs depending on several variables. To avoid unnecessary
replacement, consider the following variables when determining how long a charged battery pack
should last:
●
●
●
●
●
●
●
●
Power management settings
Hardware configuration
Software applications
Installed options
Display brightness
Hard drive usage
Changes in operating temperature
Type and number of installed PC Cards
The power consumption requirements for PC Cards vary widely. Some cards drain
the battery pack very rapidly.
NOTE:
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:
●
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 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.
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 battery pack charge times by model.
Battery Charge Time
Computer
On Line
Off Line
2:00 hr
2:50 hr
Model 1/NiMH Battery Pack
Model 2/Li ion Battery Pack
4.0 hours premature termination
4.5 hours premature termination
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.
Top of Page
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Compaq Presario 1600
Series Portable Computer Models
Model
1650
Model
1655
Display
12. 1" TFT
266 Pentium II
4.0-GB
13. 3" TFT
266 Pentium II
4.0-GB
Processor
Hard Drive
CD Drive
Modem
24× MAX
24× MAX
M+-56.0 Kbps or K- K-56.0 Kbps with
56.0 Kbps with ITU ITU V.90
V.90
Port
Replicator
Power
Management
for Windows
98
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Front of Unit
1. Display 9.CD
Previous
Track
2. Power 10. CD
(On/Off) Next
Button
Track
3.
11.
DisqPlay Keyboard
Switch
4.Volume 12. Touch
Control
Down
Button
Pad
Port
Replicator
Power
5. Volume 13. Left
Control Up Touch Pad
Button
Management
for Windows
98
Button
6. Status 14. Right
Panel
7. CD
Touch Pad
Button
15.
Play/Pause Integrated
Speakers
8. CD
Stop
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
Pin Assignments | Battery Pack Operations
1.
Modem
Jack
2.
Diskette
Drive
Slot
3.
Diskette
Eject
Button
Connectors
4.
Battery
Pack
Port
Replicator
Power
5. Left
Speaker
Port
Management
for Windows
98
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
6. Manual
Eject Hole
1.
Headphone
Out
7. PCMCIA
(Top Slot)
2.Line-In Jack
8.PCMCIA
(Bottom Slot)
3. External
Microphone
Jack
9.PCMCIA
Eject Levers
4. CD Drive
10. Right
Speaker Port
5. CD Drive
Eject Button
Port
Replicator
Power
Management
for Windows
98
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
1. Memory
Compartment Feet
2.
Port
Replicator
Power
Management
for Windows
98
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
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Pin Assignments | Battery Pack Operations
1.Keyboard/Mouse 6. External Monitor
Port
Port
2. Parallel Printer
Port
7. USB
3. Port Replicator
4. Fan Exhaust
5. Serial Port
8. AC Adapter
9. Security Slot
Port
Replicator
Power
Management
for Windows
98
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
This section is an overview of the Compaq Presario 1600 Series Portable
Computer Port Replicator and covers the following topics:
Models and
Features
Controls and
Lights
■
■
■
■
System Overview
Features
Port Replicator Rear Connectors
80-Pin Connectors
Left Side
Components
Right Side
Components
System Overview
Bottom of
Unit
A manual docking mechanism on the Compaq Presario 1600 Series Portable
Computer Port Replicator docks Compaq Presario 1600 Series Portable
Computers. When the computer is docked, the 80-pin external options connector
handles the entire electrical interface (both power and signal connections)
between the computer and the Port Replicator Rear.
Rear
Connectors
Port
Replicator
Power
Features
Management
for Windows
98
The Compaq Presario 1600 Series Portable Computer Port Replicator provides
all the connectors supported by the Compaq Presario 1600 Series Portable
Computers. They include:
■
■
■
■
■
■
■
■
External keyboard
External mouse
MIDI/game port
External monitor
Serial
Parallel
AC Adapter
Dual USB ports (Not supported on all models.)
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
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Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
80-Pin Port Replicator Connector
The 80-pin Compaq Presario 1600 Series Portable Computer Port Replicator
connector handles the entire electrical interface between the port Replicator
and the computer.
CAUTION: Turn the computer power switch off before you connect or disconnect the
port Replicator. Damage may occur to the computer if it is "hot" plugged to the port
Replicator.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Port Replicator Rear Connectors
This section covers external input/output (I/O) connectors. Refer to Pin
Assignments for connector pin assignments.
Port Replicator
Rear Connectors
1. Keyboard 6. External
Monitor
2. Mouse
3. USB
7. Serial
8. Parallel
4. USB
9. AC
Adapter
5.
MIDI/Game
Pad/Joystick
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
●
●
Power Management Settings
Sleep
●
●
●
●
Hibernation
Battery operating time
Rebooting After a Lockup
Servicing Your Computer - Full Off Mode
Power Management Settings
Depending on your patterns of computer use, you can set different levels of power management.
These different power management levels can be activated based on the amount of time passed
since the last system activity. System activity examples, include keyboard or mouse movement,
CD (while under program control that monitors Sleep), and modem use.
You can select different conditions or power schemes through Power Management..The optional
settings are Home/Office Desk, Portable/ Laptop and Always On. From the default settings,
you can change the following settings.
●
●
●
the System goes to Sleep (Standby) mode
the screen times out and goes blank
the hard drive spins down
Each of these system components will go to sleep after the selected or default periods of inactivity.
(The setting for hard drive must be less than or equal to the setting for System.)
If you're on a network, it's recommended that you set System Standby to
Never.
IMPORTANT:
There are five categories of power management settings under the Control Panel. The default
setting for each feature is listed below in the tables.
Power Management Properties
Tab: Power Schemes: Plugged in
Running on
Batteries
Always on System
Never
15 minutes
Standby:
Turn OFF Monitor
After 15 minutes
After 15 minutes
After 10 minutes
After 10 minutes
Always on System
Standby:
Power Management Properties
Tab: ALARMS::
Low Battery Alarm:
10%
Critical Battery Alarm
0%
Alarm Actions:
X Display Message Notification
Text Action
No Action
Power Management Properties
Tab: POWER METER:
Tab: ADVANCED
Default
Default
Display Properties
Tab: POWER METER: Monitor Laptop Display (Maximum resolution according to
unit display size)
System Properties
Tab: Device Manager
Default:
Disk Drives:
CD ROM:
X DMA
X DMA
Sleep
You can select Sleep mode instead of turning off the computer when you have finished using it.
This allows the computer to wake up faster than turning it completely off and saves power over the
active (On) mode. Compaq Presario Notebook computers have two levels of sleep, Hibernation and
Sleep.
Hibernation - by pushing the power button once your computer will perform a save to disk
followed by a shut down of the computer into Off mode.
Sleep - is a low power mode, also referred to as Standby mode. While in Sleep mode, your
computer will maintain system information and open files. Unsaved information will be lost if you
turn off your system prior to system wake-up, or if you lose power while using the AC adapter.
CAUTION: While in Sleep mode, your computer will maintain system information and open
files. Unsaved information will be lost if you turn off your system prior to system wake-
up, or if you lose power while using the AC adapter.
Hibernation Mode
Hibernation helps conserve battery life and protects your data. Hibernation can be a routine power
saving event, or can be the result of a low battery condition. As it enters Hibernation, your
computer will display a progress screen, as it automatically saves the machine state before it shuts
down and turns itself off. Your computer will automatically go into Hibernation, when the battery
has little power left, or when the system (operating on battery power) has been in Sleep mode for
more than an hour. You can also manually initiate Hibernation by pressing the power button once
while the system is active. To restore the computer's previous state, simply press the power button
once again. While waking up, the computer will display a progress screen.
The following table shows the conditions and indicators for getting in and out of the various power
management modes, Sleep, Hibernation and Off.
Mode
To Initiate
To End
Indicators
Sleep
Manual keys
combination
- Fn+F4
Press any key Flashing green
Power LED
Time Out
Default 15
minutes. If on
Battery power
(system will not
go to Sleep if
on AC power)
Hibernate
Manual - Press Press Power
Power Button Button once
once
No Power LED,
blank screen
Time Out
Default If low
battery or after
1 hour of sleep
(system will not
Hibernate if on
AC power)
Off
Perform normal Press Power
No Power LED,
blank screen
Windows
Button once
shutdown via
the start
button, or press
and hold down
the power
button for 4
seconds
Servicing Your Computer - Full Off Mode
If you need to install or replace components in your system, you must turn the computer off
completely. Follow the instructions above for properly putting the computer into Off mode, unplug
from the outlet and remove the battery (see battery section for instruction on removing battery).
Rebooting After a Lockup
Occasionally you may encounter a frozen keyboard or a locked screen. To reboot your computer
(as if from a cold start) 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 doesn't
recover, press the Power Button and hold it 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.
Battery Operating Time
Battery operating time is affected by variables, such as the following:
●
●
●
●
●
●
●
●
●
Power conservation settings
Hardware configuration
Software applications
Installed options
Display brightness
Hard drive usage
Power button
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 the Battery Pack Operations.
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
To remove the
battery pack,
complete the
following steps:
1.Slide the battery
pack
compartment
door down and
pull the battery
pack forward from
the chassis.
To replace the
battery pack,
reverse the
procedure.
The
replacement
battery
pack will
come with a
removable
door. To
properly
replace the
battery
NOTE:
pack follow
the
instructions
below.
To replace a
new battery pack,
complete the
following steps:
Fan Assembly
Audio Board
1. Push forward on
the battery pack
with tab to insert
the battery pack
into the battery
pack slot.
System Board
Memory
Module
2. Slide the battery
pack door up onto the
opening for the
battery pack door.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Pin Assignments | Battery Pack Operations
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 Computer Checkup.
3. Turn off the computer and its external devices.
4. Disconnect any external devices 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 related to the external
device or its cable. Verify this by running POST with and without
IMPORTANT:
the external device connected.
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.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Power-On Self Test (POST)
Running POST
To run POST, complete the following steps:
Turn off the computer, then turn on the computer.
If POST does not detect any errors, the computer will not beep. This indicates successful
completion of 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).
If POST detects errors, the errors are indicated by screen and/or audible messages. Refer to
"Power-On Self-Test (POST) Codes" in the tables for a list of POST codes and their relevant
descriptions.
If the system is not functioning well enough to run POST, or if the display is not functioning
well enough to show POST error messages, refer to the Troubleshooting tables.
NOTE:
Power-On Self-Test Messages
102-System Board Failure
Probable Cause
Recommended Action
DMA, timers, etc.
Replace the system board.
162-System Options Not Set
Probable Cause
Recommended Action
Run Computer Setup.
Run Computer Setup.
Configuration incorrect
CMOS reflects that an invalid
configuration has been set.
RAM failure
1. Replace the memory modules.
2. Replace the system board.
Memory test data error
XX000YZZ RAM failure
1. Replace the memory modules.
2. Replace the system board.
Replace the system board.
XX000YZZ 201-Memory Error
Probable Cause
Recommended Action
301-Keyboard Error
Probable Cause
Keyboard failure
Recommended Action
1. Ensure the keys are not depressed during POST.
2. Reconnect the keyboard with the computer off.
3. Replace the keyboard.
304-Keyboard or System Unit Error
Recommended Action
Probable Cause
Keyboard or system board error
1. Replace the keyboard.
2. Replace the TouchPad or mouse.
3. Replace the system board.
601-Diskette Controller Error
Probable Cause
Recommended Action
Mismatch in drive type or failure in the
diskette controller
1. Run Computer Checkup (TEST).
2. Check and/or replace cables.
3. Replace the system board.
605-Diskette Drive Error
Probable Cause
Recommended Action
Run Computer Setup.
Mismatch in drive type
1780-Primary Hard Drive 0 Failure
Probable Cause
Recommended Action
Disk 0 failed to respond
1. Run Computer Checkup (TEST).
2. Replace the hard drive.
Hard drive format error
1. Run Computer Checkup (TEST).
2. Replace the hard drive.
1782-Hard Drive Controller
Probable Cause
Recommended Action
Hard drive controller failure
1. Run Computer Setup.
2. Replace the hard drive.
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Clearing the Power-on Password
Clearing the power-on password
requires removing all Setup
attributes that are programmed
in the CMOS.
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 battery pack.
4. Remove the keyboard.
5. Remove the RTC battery for
30 seconds. The password,
together with other Setup
attributes, will be cleared.
6. Reassemble the computer.
7. Turn on the computer to verify
that the power-on password has
been cleared. If it has not been
cleared, repeat Steps 1 through
7.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Compaq Diagnostics
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)
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 devices are installed
properly.
NOTE:
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
System ports
System storage
Graphics
Operating system
System files
Windows files
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.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
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 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.
Ensure that there is no diskette in the diskette drive and that
IMPORTANT:
there are no PC Cards in the PC slots.
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.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Diagnostic Error Codes
Diagnostic error codes occur if the system recognizes a problem while running the Compaq
The following tables list error codes, a description of the error condition, and the action required
to resolve the error condition.
For the removal and replacement of a particular subassembly, see Removal and Replacement
Keyboard Test
501 through 516
2402 through 2456
2458 through 2480
3206
Video Test
Audio Test
8601 through 8602
3301 through 6623
Touch Pad Pointing Device Test
CD Test
Processor Test Error Codes
Error
Code
Description
Recommended Action
101-xx
102-xx
CPU test failed
Replace the processor and retest.
Coprocessor or Weitek Error
1. Run the Configuration and Diagnostics
Utilities.
2. Replace the processor board and retest.
103-xx
104-xx
105-xx
106-xx
107-xx
108-xx
109-xx
110-xx
DMA page registers test failed
Interrupt controller master test failed
Port 61 error
Replace the system board and retest.
Keyboard controller self-test failed
CMOS RAM test failed
CMOS interrupt test failed
CMOS clock test failed
Programmable timer load data test
failed
113-xx
114-01
Protected mode test failed
Speaker test failed
1. Check system configuration.
2. Verify cable connections to speaker.
3. Replace the system board and retest.
Memory Test Error Codes
200-xx
202-xx
203-xx
204-xx
211-xx
214-xx
215-xx
Memory machine ID test failed
Memory system ROM checksum failed
Write/Read test failed
1. Flash the system ROM and retest.
2. Replace the system board and retest.
1. Remove the memory module and retest.
2. Install a new memory module and
retest.
Address test failed
Random pattern test failed
Noise test failed
Random address test failed
Keyboard Test Error Codes
300-xx
301-xx
302-xx
304-xx
Failed ID Test
1. Check the keyboard connection. If
disconnected, turn off the computer and
connect the keyboard.
Failed Selftest/Interface Test
Failed Individual Key Test
Failed Keyboard Repeat Test
2. Replace the keyboard and retest.
3. Replace the system board and retest.
Parallel Printer Test Error Codes
401-xx
402-xx
403-xx
Printer failed or not connected
1. Connect the printer.
2. Check power to the printer.
3. Install the loop-back connector and
retest.
4. Check port and IRQ configuration.
5. Replace the system board and retest.
Failed Port Test
Printer pattern test failed
Diskette Drive Test
Diskette ID drive types 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.
600-xx
601-xx
602-xx
Diskette format failed
Diskette read test failed
Diskette write, read, compare test
failed
603-xx
604-xx
605-xx
606-xx
609-xx
610-xx
697-xx
698-xx
Diskette random read test failed
Diskette ID media failed
Diskette speed test failed
Diskette reset controller test failed
Diskette change line test failed
Diskette type error
Diskette drive speed not within limits
Diskette drive/media ID error
1. Replace media.
2. Run the Configuration and Diagnostics
Utilities.
699-xx
Serial Test Error Codes
Serial port test failed
1. Check port configuration
2. Replace the system board and retest.
1101-xx
Hard Drive Test Error Codes
1701-xx
1702-xx
Hard drive format test failed
Hard drive read test failed
1. Run the Configuration 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.
Hard drive write/read/compare test
failed
1703-xx
1704-xx
1705-xx
1706-xx
1707-xx
1708-xx
1709-xx
1710-xx
1715-xx
Hard drive random seek test failed
Hard drive controller test failed
Hard drive ready test failed
Hard drive recalibration test failed
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
1716-xx
1717-xx
1719-xx
1724-xx
1736-xx
Hard drive ECC* test failed
Hard drive power mode test failed
Network preparation test failed
Drive monitoring test failed
* ECC = Error Correction Code
Video Test Error Codes
501-xx
502-xx
503-xx
504-xx
Video controller test failed
The following apply to error codes 501-xx
through 516-xx:
Video memory test failed
Video attribute test failed
Video character set test failed
1. Disconnect external monitor and test
with internal LCD display.
2. Replace the display assembly and retest.
3. Replace the system board and retest.
Video 80 × 25 mode 9 × 14 character
cell test failed
505-xx
Video 80 × 25 mode 8 × 8 character
cell test failed
506-xx
507-xx
508-xx
Video 40 × 25 mode test failed
Video 320 × 200 mode color set 0
test failed
Video 320 × 200 mode color set 1
test failed
509-xx
510-xx
511-xx
512-xx
514-xx
516-xx
2402-xx
2403-xx
2404-xx
Video 640 × 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 memory test failed
The following steps apply to error codes
2402-xx through 2456-xx:
Video attribute test failed
Video character set test failed
1. Run the Configuration and Diagnostics
Utilities.
2. Replace the display assembly and retest.
3. Replace the system board and retest.
Video 80 × 25 mode 9 × 14 character
cell test failed
2405-xx
2406-xx
2408-xx
2409-xx
Video 80 × 25 mode 8 × 8 character
cell test failed
Video 320 × 200 mode color set 0
test failed
Video 320 × 200 mode color set 1
test failed
2410-xx
2411-xx
2412-xx
2414-xx
Video 640 × 200 mode test failed
Video screen memory page test failed
Video gray scale test failed
Video white screen test failed
2416-xx
2418-xx
2419-xx
2421-xx
2422-xx
2423-xx
2424-xx
2425-xx
2431-xx
2432-xx
2448-xx
2451-xx
2456-xx
2458-xx
2468-xx
2477-xx
2478-xx
2480-xx
Video noise pattern test failed
ECG/VGC memory test failed
ECG/VGC ROM checksum test failed
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.
ECG/VGC 640 × 200 graphics mode
test failed
ECG/VGC 640 × 350 16 color set test
failed
ECG/VGC 640 × 350 64 color set test
failed
ECG/VGC monochrome text mode test
failed
ECG/VGC monochrome graphics mode
test failed
640 × 480 graphics test failure
320 × 200 graphics (256 color mode)
test failure
Advanced VGA Controller test failed
132-column Advanced VGA test failed
Advanced VGA 256 Color
test failed
Advanced VGA BitBLT test
The following step applies to error codes
2458-xx through 2480-xx:
Advanced VGA DAC test
Replace the system board and retest.
Advanced VGA data path test
Advanced VGA BitBLT test
Advanced VGA LineDraw test
Audio Test Error Codes
3206-xx
Audio System Internal Error
Replace the system board and retest.
TouchPad/Pointing Device Interface Test Error Codes
8601-xx
8602-xx
Mouse test failed
1. Replace the TouchPad and retest.
2. Replace the system board and retest.
Interface test failed
CD Drive Test Error Codes
3301-xx
3305-xx
6600-xx
6608-xx
6623-xx
CD drive read test failed
CD drive seek test failed
ID test failed
1. Replace the CD and retest.
2. Verify that the speakers are connected.
3. Verify that drivers are loaded and
properly installed.
4. Replace the CD drive and retest.
5. Replace the system board and retest.
Controller test failed
Random read test failed
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United States
January 2, 2003
Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
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:
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.
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
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 Cause
Solution(s)
Computer does not beep after the Power-On This is typical; it indicates successful
No action is required.
Self-Test (POST).
completion of the Power-On Self-Test
(POST).
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
Probable Cause
Solution(s)
Computer won't turn on when battery
pack is inserted and power cord is
unplugged.
Battery pack is discharged.
Connect the computer to an external
power source and charge the battery
pack.
Replace the battery pack with a fully
charged battery pack.
Check the battery connectors on the
system board to verify they are evenly
spaced and that they are not bent or
broken.
Computer is beeping and battery LED
icon is blinking.
Battery charge is low.
Immediately save any open file(s). Then
do any one of the following:
●
Connect the computer to an
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.
Computer battery LED icon (front on the Volume is turned down too low.
unit) blinks to indicate low battery
Adjust the volume.
condition, but computer does not beep.
Battery LED icon doesn't light and
battery pack won't fast charge.
Battery pack is already charged.
No action is necessary.
Battery pack was exposed to
temperature extremes.
Allow time for the battery pack to return
to room temperature.
Battery pack is at end of its life.
Replace battery pack.
You have to set the date and time every RTC battery is dead.
time you turn on the computer.
Replace the RTC battery.
Problem
Probable Cause
Solution(s)
Battery charge does not last as long Battery is being exposed to high
Keep the battery pack within the
recommended operating temperature
range 50° F to 104° F (10° C to 40° C)
or recommended storage range
-4° F to 86° F (-20° C to 30° C ).
Recharge the battery pack.
as expected.
temperatures or extremely cold
temperatures.
Battery has partially self-discharged.
Power management is disabled.
Recharge the battery. Discharge the
battery completely and then recharge it.
Set a power management level in
Computer Setup.
An external device or PC Card is draining Turn off or disconnect external devices
the battery.
when not using them.
Battery pack is warm to the touch
after charging.
Normal warming has occurred due to
charging.
No action is required.
Battery pack operating time is far
less than the documented average
operating time.
Power management is turned off or
disabled.
Enable power management in Computer
Setup and in Windows Power Properties.
An external device or PC Card is draining Turn off or disconnect external devices
the battery.
when not using them.
Battery pack has partially self-
discharged.
Condition the battery pack by fully
charging, 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 than two
weeks, remove battery packs from the
computer to reduce the discharge rate.
Battery pack is being exposed to high
temperatures or extremely cold
temperatures.
Keep the battery pack within the
recommended temperature ranges.
Operating: 50° F to 104° F
(10° C to 40° C)
Storage: -4° F to 86° F
(-20° C to 30° C )
Recharge the battery pack.
Solving CD Drive Problems
Some common causes and solutions for CD drive problems are listed in the following table.
Solving CD Drive Problems
Problem
Probable Cause
Solution(s)
CD drive cannot read a compact disc.
Compact disc is upside down or is
improperly inserted in the CD drive.
Open the CD loading tray, lay the
compact disc in it (label side up), then
close the tray.
CD is CD Plus or Pregap/Track 0 type. Cannot read these type CDs in 24x.
Remove the CD.
Solving Diskette and Diskette Drive Problems
Some common causes and solutions for diskette and diskette drive problems are listed in the
following table.
Solving Diskette and Diskette Drive Problems
Problem
Probable Cause
Solution(s)
Diskette drive cannot write to a Diskette is write-protected.
diskette.
Disable the diskette's write-
protect feature or use a
diskette that is not write-
protected.
Computer is writing to
the wrong drive.
Check the drive letter in the
path statement.
Not enough space is left
on the diskette.
Use another diskette.
Drive error has occurred.
Run Computer Checkup from
the Compaq Diagnostics
diskette.
Diskette is not formatted.
Format the diskette. At
the system prompt, enter
FORMAT A:
Diskette drive cannot read a
diskette.
The wrong type of diskette is Use the type of diskette
being used.
required by the drive.
Diskette has a bad sector.
Copy files to hard drive or
another diskette. Reformat bad
floppy.
Drive error has occurred.
Run Computer Checkup from
the Compaq Diagnostics
diskette.
Diskette is not
formatted.
Format the diskette. At the
system prompt, enter
FORMAT A:
Cannot boot from diskette.
Bootable diskette is not in
drive A.
Put the bootable diskette in
drive A.
Diskette Boot has incorrect
setting in Computer Setup.
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
Probable Cause
Solution(s)
Screen is dim.
Control for brightness (if
applicable) is not set properly. display by using Fn + F7 (¯ )
Adjust the Brightness of the
or
Fn + F8 (• ).
Computer screen is in direct
light.
Tilt display or move computer.
Screen is blank.
Screen save was initiated by Press any key or touch the
Power Management due to
lack of user activity.
Touch Pad.
Display has overheated.
If computer is in direct sunlight,
move it and allow it to cool off.
Display is blank and the Suspend System is in Suspend mode. Press any key or touch the
icon is flashing. Touch Pad.
Internal display is blank and the Display function was switched Use Fn + F2 to switch between
screen on an external monitor
displays information.
to the external monitor.
LCD or CRT.
Problem
Probable Cause
Solution(s)
Internal display flashes or has garbled Using 1024 × 768 or
Restart the computer.
characters when computer is
connected to external monitor.
higher resolution on
external monitor and
have toggled back to
internal display, which
supports up to
800 × 600.
The light tubes on the edge of the display panel
do not light up at all and Power-On Self-Test
(POST) completes when the unit is powered
up.**
Improper backlight or display Replace the display assembly.
cable connections
Defective inverter board.
Defective display cable.
Defective display panel.
Defective system board.
Defective system board.
Replace the display assembly.
Replace the display assembly.
Replace the display assembly.
Replace the system board.
Replace the system board.
The light tubes on the edge of the display panel
do not light up at all and Power-On Self-Test
(POST) does not complete when the unit is
powered up.**
Backlight (brightness) cannot be adjusted with
Fn + F7 (¯ ) or
Improper display cable
connections.
1. Reseat the display cable to the
system board.
Fn + F8 (• ).***
2. Replace the display assembly.
Replace the display assembly.
Defective inverter board.
Defective display cable.
Defective system board.
Defective inverter board.
Defective display cable.
Defective system board.
Replace the display assembly.
Replace the system board.
Replace the display assembly.
Replace the display assembly.
Replace the 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 LEDs turn on at the front of the computer.
Problem
Probable Cause
Solution(s)
This display panel has a continuous pattern
across it (e.g., a "jailbars" pattern), has a
single color on it, or has garbled graphics
across the entire panel. This failure is for
patterns across the entire panel (not just on
one section).
Improper display cable
connections
Reseat the display cable to the following
until the problem is solved:
1. System board
2. Display assembly
Defective display cable.
Defective inverter board.
Defective system board.
Replace the display assembly.
Replace the display assembly.
Replace the system board.
To perform a "self-test" on an external VGA color monitor, complete the following steps: The screen should be
NOTE: 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 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
Probable Cause
Solution(s)
Reading hard drive takes an unusually
long time after restarting the computer. low battery condition and is now
exiting from it.
System entered Hibernation due to
Give the system time to restore the
previously saved data to its exact state
before Hibernation.
Hard drive error occurs.
Hard drive has bad sectors or has
failed.
Run Computer Checkup.
Hard drive does not work.
Hard drive is not seated properly.
Turn off and unplug the 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 Cable(s) of new external
part of the computer system. device are loose or
Probable Cause
Solutions(s)
Ensure that all cables are
properly and securely
power cables are unplugged. connected.
Power switch of new external Turn off the computer, turn on
device is not turned on.
the external device, then turn
on the computer to integrate
the device with the computer
system.
Device is not seated properly. Turn off the computer and
reinsert the device.
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
Probable Cause
Solution(s)
Embedded numeric keypad on
computer keyboard is disabled.
Num Lock function is not
enabled.
Press the Shift+NumLk keys
to enable the Num Lock
function and embedded
numeric keypad. The Num
Lock icon on the status panel
turns on.
Embedded numeric keypad is
External numeric keypad is
Disconnect the external
disabled and Num Lock function is connected to the computer. numeric keypad from the
on.
computer.
Solving Memory Problems
Some common causes and solutions for memory problems are listed in the following table.
Solving Memory Problems
Problem
Probable Cause
Solution(s)
Memory count during Power-On Self- Optional memory expansion Ensure that the optional
Test (POST) is incorrect.
card is installed incorrectly, memory expansion card is
is incompatible with
installed correctly.
the computer, or is defective.
"Out of Memory" message is
displayed on the screen or
insufficient memory error occurs
during operation.
System ran out of
memory for the application. documentation for memory
requirements.
Check the application
Install additional memory.
Too many TSR (terminate-
and stay-resident)
applications are running.
Remove from memory any
TSR applications that you do
not need.
Solving Minor Problems (continued)
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Models: 1650 and 1655
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Solving PC Card Problems
Some common causes and solutions for PC Card problems are listed in the following table.
Solving PC Card Problems
Problem
Probable Cause
Solution(s)
When turned on, the computer Card is not inserted properly. Ensure the card is inserted
does not beep when a PC Card
is inserted.
in the correct orientation.
PC Card beeps are disabled.
Double-click the PC Card
icon in the Control Panel,
click the Global Settings
tab, the enable PC Card
sound effects.
Speaker is turned off or
volume is turned down.
Press volume buttons to
turn the speaker on, then
increase the volume.
PC Card drivers are not
installed.
Double click the Add New
Hardware icon in the
Control Panel for installation
instructions.
If PC Card or drivers are not
compatible with Windows,
install drivers and use the
PC Card in MS-DOS mode.
Card or card driver is not
supported.
Contact your Compaq
authorized service provider
for a list of PC Cards tested
successfully in Compaq PC
Card platforms.
PC Card modem, fax, or
network card does not work.
Card is not fully inserted into Ensure the card is inserted
the slot or is not inserted
properly.
in the correct orientation.
Telephone cord is not
plugged in all the way.
Check and secure telephone
connection.
Necessary drivers are not
installed (turned on).
PC Card modem or fax card
does not work.
You are trying to access the See Specifications to verify
card using the wrong COM
port.
COM port.
The card conflicts with a
serial device.
See Specifications to verify
address.
The card is not supported.
Use supported cards only.
Modem network PC Card
does not work.
Network driver is not installed or is
not set up properly.
Install driver.
Telephone cord is not properly
connected.
Verify telephone
connection.
Memory or storage card
does not work.
SRAM and flash memory cards
require the memory card driver to be
loaded (turned on).
Install driver.
Flash memory cards require the
Microsoft FlashFile System to
be loaded.
Hard drives on flash mass storage
cards require the PC Card ATA driver
to be loaded.
You are trying to access the hard
drive card using the wrong drive
letter.
Double-click My
Computer to verify
the drive letter
assigned to the card.
The card is not
supported.
Contact your
Compaq authorized
service provider for a
list of PC Cards
tested successfully in
Compaq PC Card
platforms.
Solving Power Problems
Also see "Solving Battery and Battery Gauge Problems" in this section.
Solving Power Problems
Problem
Probable Cause
Solution(s)
Computer won't turn on and
battery pack is not inserted.
Computer is not connected to Insert battery or connect
a power source.
an external power source.
Ensure that power cords
Power cords to the external
power source are unplugged. connecting the computer
and the external power
source are plugged in
properly.
Power adapter is defective.
Replace AC Adapter and
restart.
Computer turned off while it was System board is defective.
left unattended and the power icon
Replace the system board.
System initiated Hibernation Replace the battery pack
is off.
due to a critical low-battery
condition.
with a fully charged
battery pack or connect
the computer to an
external power source.
Then turn on the
computer.
System initiated Hibernation Turn on the computer.
after a preset timeout.
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.
The signal cable may not be Ensure that the signal
connected properly, or the
printer is unplugged.
cable is properly
connected and that the
power cord is connected to
the electrical outlet.
Printer will not print.
Printer is not turned on or is Turn the printer on and set
off line.
it to on line.
The device drivers for your
Refer to the printer
application are not installed. documentation to install
the correct printer driver.
Printer that is set up for a
Connect the printer to the
network is not connected to network.
the network.
Printer cable is too long,
unshielded, or defective.
Replace the cable.
Paper tray is empty.
Fill the paper tray with
paper and set the printer
to online.
Printer prints garbled information. Correct printer drivers
are not installed.
Refer to the printer
documentation to install
the correct printer driver.
Cable is not
connected properly.
Ensure that the printer
signal cable is properly
connected to the
computer.
Cable is defective.
Replace the printer cable
and retest.
Solving Touch Pad/Pointing Device Problems
Some common causes and solutions for Touch Pad/pointing device problems are listed in the
following table.
Solving Touch Pad/Pointing Device Problems
Problem
Cause
Solution(s)
Touch Pad or mouse does not work. Incorrect or no device driver Install the device driver
is installed.
and add to the
AUTOEXEC.BAT file or
CONFIG.SYS file.
The device driver is not
installed in Windows.
Install the Touch
Pad/mouse driver in
Windows.
External mouse does not work.
Mouse is not securely
connected or is connected to securely connected to the
Ensure that the mouse is
an incorrect external
connector.
appropriate external
connector.
Touch Pad or mouse does not work Mouse is not enabled.
even though the device is enabled
in Windows.
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.
Cable not properly seated in Reseat cable.
Touch Pad board.
Defective Touch Pad board. Replace Touch Pad board.
Defective system board. Replace system board.
Device driver is not correctly Install the appropriate
installed in Windows. device driver in Windows.
Cursor skips or moves abnormally The Touch Pad needs to be Clean the Touch Pad with
when using the Touch Pad.
cleaned.
a cloth dampened with
alcohol or an ammonia-
based glass cleaner. Wipe
up liquid with a dry cloth.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Description
Spare
Part
Number
293737-
001
1. Status Panel
2. Palmrest Cover 332226-
001
3. Keyboard
United States
330981-
001
Canada
330981-
401
4. Upper CPU
293739-
Miscellaneous
Hardware and
Plastics Kit
Cover with Power 001
Switch Connector
(Top Plastics)
5. Speaker
Assembly w/Cable 001
293883-
Miscellaneous
Parts
6. Battery Pack, 330936-
Li ion
001
Documentation
and Software
7. CPU Base
Assembly
331156-
001
Enclosure,(Bottom
Plastics)
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Description
Spare
Part
Number
1.Heatspreader
331164-
001
2.Processor
Pentium II/233
Processor
347556-
001
Pentium II/266
330983-
001
Miscellaneous
Hardware and
Plastics Kit
3. Audio Board
331010-
001
4. LCD
293156-
001
Miscellaneous
Parts
Interface
Board TFT
w/header
Documentation
and Software
5. Modem, M+- 56.0 Kbps
Data/Fax
001
138610-
Modem, K-56.0 Kbps
Data/Fax
001
138657-
6. Fan w/Cable
332228-
001
7. Voltage
Converter
331019-
001
8. System
Board, w/o
processor
331009-
001
9. Memory
Module
16-MB
32-MB
64-MB
293726-
001
293727-
001
332208-
001
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Pin Assignments | Battery Pack Operations
Description
Spare Part
Number
Display
331014-001
Miscellaneous
Cable Kit
Assembly
w/Cable, 12.1
inch TFT
Cables
331012-001
Display
Assembly
w/Cable, 13.3
inch
Miscellaneous
Hardware and
Plastics Kit
TFT
Miscellaneous
Parts
Documentation
and Software
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Models: 1650 and 1655
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Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Description
Spare
Part
Number
1. Diskette
Drive
w/Cable,
1.44 MB,
3.5 inch
331165-
001
2. Hard
Drive
w/Mounting
Bracket, 5.0-
GB
331011-
001
Miscellaneous
Hardware and
Plastics Kit
Hard Drive
w/Mounting
Bracket 4.0-
GB
Miscellaneous
Parts
330969-
001
Documentation
and Software
3. 24× MAX
CD Drive
330967-
001
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Miscellaneous Cables Kit
Miscellaneous Cables Kit
Spare Part Number: 332234-001
Description
Quantity
1a. Cable, Diskette Drive
1b. Cable, Hard Drive
1
1
1
1
1
Hardware and
Plastics Kit
1c. Cable, CD Drive
1d. Cable, TouchPad SW Board
1e. Cable, Fax/Modem
Miscellaneous
Parts
Documentation
and Software
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Presario 1600 Series
Models: 1650 and 1655
Pin Assignments | Battery Pack Operations
Power Cords
Description
Spare Part Number
Power Cord
United States/ French Canada 293831-001
Cable Kit
Cables
Modem Cables
Miscellaneous
Hardware and
Plastics Kit
Description
Spare Part Number
1. Modem
Asia Pacific 137256-001
Miscellaneous
Parts
Documentation
and Software
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Miscellaneous Hardware and Plastics Kit
Spare Part Number: 293761-001
Description
Quantity
1 each
1 each
2 each
1 each
1 each
10 each
10 each
1 each
1 each
1. Door, Battery Pack
2. Cover, Memory Module
3. Door, PCMCIA
Miscellaneous
4. Hinge (Clutch) Cover, Left
5. Hinge (Clutch) Cover, Right
6. Rubber Foot
Plastics Kit
Miscellaneous
Parts
7. Stand Foot (plastic)
8. Hard Drive Mounting Bracket
9. Stiffener Bracket
Documentation
and Software
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Models: 1650 and 1655
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Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Description
Spare Part
Number
1. AC Adapter
298239-001
293857-001
2. Port
Replicator
Clock Battery
(Not Shown)
117099-001
293760-001
Miscellaneous
Screw Kit (Not
Shown)
Hardware and
Plastics Kit
Logo Kit (Not
Shown)
203727-001
293799-001
Return Kit (Not
Shown)
Miscellaneous
Parts
Documentation
and Software
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Pin Assignments | Battery Pack Operations
Description
Spare Part Number
Quick Restore CD
Not Available
Not Available
Not Available
Not Available
Not Available
Quick Reference Guide
QuickFind for Windows, North America, Latin America, Asia
Pacific
Hardware and
Plastics Kit
QuickFind for Windows, Europe, Middle East, Africa
Miscellaneous
Parts
*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.
Documentation
and Software
QuickFind Part Number Suffix
Suffix
-001
-002
-003
-004
-005
-006
Month
January
February
March
April
Suffix
-007
-008
-009
-010
-011
-012
Month
July
August
September
October
November
December
May
June
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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.
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
Relative Humidity
Event
10%
40%
55%
Walking across carpet
35,000 V 15,000 V 7,500 V
Walking across vinyl floor
Motions of bench worker
Removing DIPS from plastic tubes
Removing DIPS from vinyl trays
Removing bubble pack from PCBs
Packing PCBs in foam-lined box
12,000 V 5,000 V
3,000 V
400 V
6,000 V
2,000 V
800 V
700 V
400 V
11,500 V 4,000 V
2,000 V
3,500 V
26,000 V 20,000 V 7,000 V
21,000 V 11,000 V 5,000 V
NOTE: 700 volts can degrade a
product.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
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
5mm nut drivers (for screwlocks and standoffs)
Small, standard screwdriver
Small, Phillips screwdriver
Plastic shroud
Diagnostics software
Screws
The screws used in the computer are not interchangeable. If an incorrect
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
IMPORTANT:
be placed away from the work area to prevent damage.
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Presario 1600 Series
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| Home Page | Notice | Preface | Product Description | Troubleshooting
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Pin Assignments | Battery Pack Operations
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
computer:
●
●
●
Avoid bending, twisting, or pulling on the cables.
connectors.
●
●
Place the cables in such a manner that they cannot be caught or snagged by parts being
removed or replaced.
proper location during the reassembly process. Improper cable placement can
cause severe damage to the unit.
Select the desired illustration.
Removing a Cable from a ZIF Connector.
The ribbon cable position for the 5.0-GB or 4.0 hard drive.
The ribbon cable position for the CD drive.
The ribbon cable position for the diskette drive.
The cable position for the speaker assembly.
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.
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
ZIF Connectors
The computer uses a zero insertion force
(ZIF) connector for the keyboard cable to the
system board. To remove a cable from a ZIF
connector, lift both corners of the ZIF
connector and slide simultaneously with
constant light force.
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.
computer, ensure that cables are
placed in their proper location during
the reassembly process. Improper
cable placement can damage the
computer.
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The ribbon cable position for the 5.0-GB or 4.0-GB
hard drive.
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The ribbon cable position for the CD drive.
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The ribbon cable position for the diskette drive.
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Presario 1600 Series
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The cable position for the speaker assembly.
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Pin Assignments | Battery Pack Operations
Before beginning removal and replacement procedures,
complete the following procedures:
1. Disconnect AC power and any external devices.
2. Remove the battery pack.
3. Remove any PC Cards.
The battery pack should be removed before
performing any internal maintenance on the
IMPORTANT:
computer.
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 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.
The Compaq Presario 1600 Series Portable
Computers have several screws of various sizes
which are not interchangeable. Care must be taken
Fan Assembly
Audio Board
NOTE:
during reassembly to ensure that the correct screws
are used in their correct location. During removal
please keep respective screws with their associate
sub-assembly.
System Board
Memory
Module
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Presario 1600 Series
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The palmrest
cover with touch
pad must be
removed to gain
access to any of
the interior
components of the
computer, and it is
the first
component that
has to be removed
to gain access to
the interior
components.
It is not
necessary
to remove
the display
panel
NOTE:
assembly to
access the
interior
components
of the
computer.
complete the
following steps:
1. Prepare the
computer for
disassembly.
Fan Assembly
Audio Board
2. Close the
computer and turn
the computer
System Board
Memory
Module
3. Remove three
screws from the
bottom of the
computer.
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4. Turn the computer over (right side up),
pull forward on the display latches to release
and open the display assembly.
5. Lift up front end of the palmrest cover
with touch pad and remove it from the
groove in the chassis.
6. Tilt the palmrest cover with touch pad,
allowing it to rest on top of the keyboard,
and disconnect the flex cable from the LIF
connector on the palmrest cover.
CAUTION: When replacing the
palmrest cover with touch pad, ensure
that the cable is fully inserted into the
LIF connector on the system board. If
the metal end should come in contact
with the keyboard, damage may occur
to the computer.
To replace the palmrest cover with touch
pad, reverse the previous procedures.
Procedures
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the following steps:
1. Prepare the
computer for
disassembly.
2. Remove the
palmrest cover with
touch pad.
3. Gently lift up the
front of the keyboard
and disconnect the
flex cable from the
ZIF connector on the
system board.
To remove a
cable from a
ZIF connector,
lift both
simultaneously
with constant
light force.
Then remove
the cable.
Refer to the
Cables and
Connectors for
more
information on
removing a
cable from the
ZIF connector.
NOTE:
Assembly
Diskette Drive
Fan Assembly
Audio Board
System Board
Memory
Module
Next Step
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steps:
1. Prepare
disassembly.
the palmrest
cover with
touch pad.
3. Remove
the keyboard.
4. Remove
three screws
from the
heatspreader
and lift out of
the chassis.
To replace
the
heatspeader,
reverse the
previous
procedures.
Fan Assembly
Audio Board
System Board
Memory
Module
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Pin Assignments | Battery Pack Operations
To remove
steps:
disassembly.
the palmrest
cover with
3. Remove
the keyboard.
4. Remove
the
heatspreader.
5. Remove
two screws
securing the
shield and
modem, lift
off the shield,
the connector
on the
system
board.
Fan Assembly
Audio Board
Next Step
System Board
Memory
Module
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steps:
1. Prepare
disassembly.
the palmrest
cover with
3. Remove
4. Remove
the
heatspreader.
5. Remove
the modem.
two screws
securing the
processor
bracket.
Next Step
Fan Assembly
Audio Board
System Board
Memory
Module
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7. Insert a small blade
screw driver under the
right side on the
processor and lift the
processor from the
chassis slot.
8. Lift the processor out
of the processor chassis
slot.
To replace the processor
the chassis slot on the
system board and push
down into the slot.
2. Replace the
processor bracket.
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Pin Assignments | Battery Pack Operations
To remove
the status
following
steps:
1. Prepare
the computer
for
disassembly.
2. Remove
the palmrest
cover with
touch pad.
3. Remove
the
keyboard.
4. Move the
lever (located
below the CD
Play button
on the status
panel) to the
right to
cover.
Charger Board
CD Drive
Display Panel
Assembly
Upper CPU
Cover
5. Support
the front
bottom
corners of
the status
panel with
the thumb
and
Speaker
Assembly
Diskette Drive
Fan Assembly
Audio Board
forefinger.
Lift up the
status panel
off the
System Board
Memory
Module
chassis.
Next Step
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6. Disconnect the flex
cable from the connector
on the status panel
header.
ensure all cables
are properly
replaced under
the status panel
NOTE:
and not
obstructing the
status panel
replacement.
To replace the status
panel, reverse the
previous procedures.
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Presario 1600 Series
Models: 1650 and 1655
Pin Assignments | Battery Pack Operations
Removing the Interface Board with Header
To remove
the interface
board with
header,
complete the
following
steps:
1. Prepare
the computer
for
disassembly.
2. Remove
touch pad.
3. Remove
the
keyboard.
4. Remove
the status
panel.
Board
5. Remove
the two
screws from
the interface
board.
CD Drive
Display Panel
Assembly
Next Step
Upper CPU
Cover
Speaker
Assembly
Diskette Drive
Fan Assembly
Audio Board
System Board
Memory
Module
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6. Slightly lift the interface board,
disconnect the ZIF connector, and
backlight power cable from the interface
board.
Next Step
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7. Lift the interface board up with the
header attached from the system board.
.
When removing the
interface board with
the header attached
occassionally the
header will remain
attached to the system
IMPORTANT: board. If this occurs
when removing the
interface board with
the header attached,
separate the header
from the connector on
the system board.
To replace the interface board, reverse
the previous procedures.
When replacing interface
board, ensure both
connectors on the board are
NOTE:
properly seated.
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Next Step
The following illustration and table
Interface Board Components
Designator
1. JP1
Connector
Backlight Switch
Display Interface ZIF
2. JP3
3. JP4
Inverter/Backlight LIF
Connector
4. None
Interface Header
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Presario 1600 Series
Models: 1650 and 1655
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Pin Assignments | Battery Pack Operations
To remove
the hard
drive with
the hard
drive
bracket
disassembly.
2. Remove
the palmrest
cover with
touch pad.
3. Remove
four screws
hard drive
mounting
bracket and
lift up the
hard drive.
Next Step
Fan Assembly
Audio Board
System Board
Memory
Module
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5. Disconnect the hard
drive data cable from
the hard drive and
remove from the
chassis.
Next Step
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To remove the hard drive
mounting bracket,
complete the following
step:
bracket.
To replace the hard drive
and hard drive mounting
bracket, reverse the
previous procedures.
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Pin Assignments | Battery Pack Operations
Removing the Battery Charger Board
board, complete
the following
1. Prepare the
computer for
2. Remove the
with touch pad.
3. Remove the
keyboard.
4. Remove the
hard drive.
5. Remove the
6. Remove
screw from the
battery charger
board, unplug
the board from
the connector
on the system
board, and lift
out of the
chassis.
To replace the
battery charger
board, reverse
the previous
procedures.
When
replacing
the
battery
charger
board,
ensure
Fan Assembly
Audio Board
System Board
Memory
Module
NOTE:
the pins
are
aligned
with the
connector
on the
system
board.
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steps:
disassembly.
the palmrest
cover with
touch pad.
3. Remove
the keyboard.
the
heatspreader.
4. Remove
the hard
drive.
6. Remove
the battery
charger
board.
Fan Assembly
Audio Board
two screws
located at the
back CD
System Board
drive.
Memory
Module
Next Step
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8. Disconnect the CD drive cable
from the system board.
To replace the CD drive, reverse the
previous procedures.
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complete the
computer for
2. Remove the
4. Remove the
heatspreader.
5. Remove the status
panel.
6. Remove the
7. Grasp the hinge
covers, pull out and
lift the covers off the
chassis.
Carefully
remove
the
display
IMPORTANT:
panel
assembly
hinge
covers.
Fan Assembly
Audio Board
Next Step
System Board
Memory
Module
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Pin Assignments | Battery Pack Operations
8. Support the back
of the display panel
assembly and remove
two screws from each
of the display panel
hinges.
Next Step
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9. Disconnect the
backlight cable attached
to the display panel
assembly from the
connector on the
system board.
Disconnect the flex cable
attached to the display
panel assembly from the
ZIF connector on the
system board.
The flex
cable for
the 13.3''
TFT display
panel will
contain a
connector
which will
need to be
removed
IMPORTANT:
before
pulling the
flex cable
attached to
the display
panel
assembly
through
the slot on
the Upper
CPU cover.
10. Gently pull the flex
cable attached to the
display panel assembly
through the slot on the
Upper CPU cover and
remove the display
panel assembly with
flex and backlight cable
attached.
To replace the display
panel assembly, reverse
the previous
procedures.
When removing
the display panel
cable routing and
position.
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Removing the Upper CPU Cover
To remove
steps:
1. Prepare
the computer
for
disassembly.
2. Remove
chassis.
the palmrest
cover with
4. Remove
heatspreader.
6. Remove
the display
panel
assembly.
7. Remove
three screws
located on
the top and
release the
snap located
in the left
Fan Assembly
Audio Board
System Board
Memory
Module
corner of the
Upper CPU
cover.
To replace
the Upper
CPU cover,
reverse the
previous
procedures.
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Pin Assignments | Battery Pack Operations
Removing the Speaker Assembly
assembly,
1. Prepare the
computer for
2. Remove the
with touch pad.
keyboard.
4. Remove the
heatspreader.
6. Remove the
7. Remove the
display panel
assembly.
8. Remove the CD
drive.
9. Disconnect the
speaker cables
from the system
board and
remove the
speaker assembly
from the chassis.
The
speaker
cables
must be
properly
routed
when
replacing
the
speaker
assembly.
Place the
cables in such
a manner that
they cannot
Upper CPU
Diskette Drive
Fan Assembly
NOTE:
System Board
Memory
Module
information
refer to the
section on
speaker
assembly
cable
position.
To replace the
speaker
assembly, reverse
the previous
procedures.
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5. Remove the display panel assembly.
6. Remove the Upper CPU cover.
Next Step
Ensure the diskette drive eject lever is properly
inserted in the chassis slot, when replacing the
diskette drive.
NOTE:
Fan Assembly
Audio Board
System Board
Memory
Module
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7. Disconnect the diskette
drive data cable from the
system board.
Next Step
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8. Unscrew the diskette drive
standoff and screw (left corner)
from the system board. Lift the
diskette drive off the alignment
pegs and remove from the chassis.
To replace the diskette drive,
reverse the previous
procedures.
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Pin Assignments | Battery Pack Operations
the following steps:
computer for
2. Remove the
4. Remove the
heatspreader.
5. Remove the display
panel assembly.
6. Remove the Upper
CPU cover.
7. Disconnect the fan
cable from the
connector on the
system board. Pull the
fan from the chassis
slot.
To remove the fan
gasket, complete the
following step:
Pull the gasket from
the fan.
Replace
the fan
gasket,
place the
fan at a
Speaker
Assembly
15 degree
angle,
and push
forward
Diskette Drive
Fan Assembly
Audio Board
IMPORTANT:
to replace
the fan
assembly.
System Board
Memory
Module
To replace the fan
assembly, reverse the
previous procedures.
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Pin Assignments | Battery Pack Operations
To remove
steps:
disassembly.
the palmrest
cover with
3. Remove
4. Remove
the
the CD drive.
panel
assembly.
7. Remove
the Upper
CPU cover.
Fan Assembly
the two
screws from
the audio
board.
System Board
Memory
Module
Next Step
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Presario 1600 Series
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
9. Push to the right on the latch to
separate the audio board from the
base pan while disconnecting the
audio board from the connector on
the system board.
To replace the audio board,
reverse the previous
procedures.
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Replacement Procedures
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Pin Assignments | Battery Pack Operations
4. Remove the heatspreader.
6. Remove the status panel.
10. Remove the stiffener bracket.
17. Remove the audio board.
Fan Assembly
Audio Board
18. Disconnect the speaker assembly cables.
Next Step
System Board
Memory
Module
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
19. Remove five
standoffs from the
system board.
Next Step
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Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
20. Remove three
screws from the system
board.
Next Step
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
21. Push in the PCMCIA eject levers, lift up the
front end of the system board, pull forward, and
remove the system board from the chassis.
To replace the system board, reverse the
previous procedures.
Remove all cables from the
IMPORTANT:
system board.
Return to Removal & Replacement Procedures
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Pin Assignments | Battery Pack Operations
To remove
the memory
1. Prepare
the
computer
for
disassembly.
2. Close the
computer
and turn the
computer
upside
down.
3. Remove
the screw
from the
memory
door, and
slide the
memory
module door
to the right.
Next Step
Fan Assembly
Audio Board
System Board
Memory
Module
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
4. Pull side levers to
To replace the memory
module, reverse the
previous procedures.
Return to Removal &
Replacement
Procedures
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