How it Works
Compaq
Loading...
1655
User Manual
132 pgs2.89 Mb0
User Manual 2
86 pgs2.25 Mb0

Compaq 1655 User Manual

Download
Please check out our eBay auctions for more great deals on Factory Service Manuals:
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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 Preface Product
Description Troubleshooting Illustrated
Parts Catalog Removal &
Replacement Procedures
Specifications Connector Pin
Assignments Battery Pack
Operations
Click here to download the zip file for the following Maintenance & Service Guide.
Welcome to the Maintenance & Service Guide (MSG). This online guide is designed to serve the needs of those whose job it is to repair Compaq products. Many of the components of the hardcopy MSG are contained in this online guide. The Notice, contains the copyright and trademark information. The Preface shows symbol conventions, Technician Notes and Serial Number locations on the unit. This MSG will be periodically maintained and updated online as needed. For content comments or questions, contact the
Editor.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/index.html (1 of 2)6/27/2004 2:52:14 AM
To report a technical problem, contact your Regional Support Center or IM Help Center.
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/index.html (2 of 2)6/27/2004 2:52:14 AM
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/notice.html (1 of 2)6/27/2004 2:52:20 AM
First Edition (June 1998) Compaq Computer Corporation
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/notice.html (2 of 2)6/27/2004 2:52:20 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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.
NOTE:
Text set off in this manner presents commentary, sidelights, or interesting points of information.
Technician Notes
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/preface.html (1 of 2)6/27/2004 2:52:21 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
WARNING: Only authorized technicians trained by Compaq should repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies, the user should not attempt to make repairs at the component level or to make modifications to any printed circuit board. Improper repairs can create a safety hazard. Any indications of component replacement or printed circuit board modifications may void any warranty
Serial Number
When requesting information or ordering spare parts, the computer serial number should be provided to Compaq. The serial number is located on the bottom of the computer.
Locating Additional Information
The following documentation is available to support this product:
● Compaq Presario 1600 Series Portable Computer documentation set
● Introducing Windows 98 Guide
● Service Training Guides
● Compaq Service Advisories and Bulletins
● Compaq QuickFind
● Compaq Service Quick Reference Guide
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/preface.html (2 of 2)6/27/2004 2:52:21 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Product Description
Models and Features
Controls and Lights
Left Side Components
Right Side Components
Bottom of Unit
Rear Connectors
Port Replicator
Power Management for Windows 98
Compaq Presario 1600 Series Portable Computer is a continuation of the new generation of multimedia portable computers with an innovative integrated design, outstanding audio and video, advanced core features, and attractive styling. This full­function, Pentium II -
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/product.html (1 of 2)6/27/2004 2:52:21 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
based series of portable computers allows full desktop functionality and additional connectivity via the optional port replicator.
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/product.html (2 of 2)6/27/2004 2:52:21 AM
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Troubleshooting
Preliminary Steps Clearing the Power-On
Password Power-On Self Test
(POST) Compaq Diagnostics Diagnostic Error Codes Troubleshooting
Without Diagnostics Solving Minor
Problems Contacting Compaq
Support
This section covers troubleshooting information for the Compaq Presario 1600 Series Portable Computers. The basic steps in troubleshooting include:
1. Follow the Preliminary Steps.
2. Run the Power-On Self-Test (POST).
3. Follow the recommended actions described in the diagnostic tables, if you are unable to run POST or if POST displays an error message.
When following the recommended actions in the Sections on POST and
Diagnostic Error Codes perform them
in the order listed. Rerun POST after each recommended action until the problem is solved and no error message occurs. Once the problem is solved, do not complete the remaining recommended actions.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/trouble.html (1 of 2)6/27/2004 2:52:22 AM
NOTE:
If the problem is intermittent, check the computer several times to verify that the problem is solved.
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/trouble.html (2 of 2)6/27/2004 2:52:22 AM
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked%20ok/NOT...S/PRESARIO%201600%20SERIES%201650%20and%201655/illust.html
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Illustrated Parts Catalog
System Unit Boards Display
Assembly Mass Storage
Devices Miscellaneous
Cable Kit Cables Miscellaneous
Hardware and Plastics Kit
Miscellaneous Parts
Documentation and Software
This section provides an breakdown and identifies the spare parts ordering number associated with each item(s) for the Compaq Presario 1600 Series Portable Computers.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20check...201600%20SERIES%201650%20and%201655/illust.html (1 of 2)6/27/2004 2:52:22 AM
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked%20ok/NOT...S/PRESARIO%201600%20SERIES%201650%20and%201655/illust.html
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20check...201600%20SERIES%201650%20and%201655/illust.html (2 of 2)6/27/2004 2:52:22 AM
Removal & Replace
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Removal and Replacement Procedures
This section explains the removal and replacement procedures for the computer.
Serial Number Location
Disassembly Sequence
Electrostatic Discharge
Service Considerations
Cables and Connectors
Preparing the Computer for Disassembly
Battery Pack Palmrest
Cover with Touch Pad
Keyboard
Report the computer serial number to Compaq when requesting information or ordering spare parts.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/removal.html (1 of 2)6/27/2004 2:52:23 AM
Removal & Replace
Heatspreader Modem Processor Status Panel
Interface Board
Hard Drives Battery
Charger Board CD Drive Display Panel
Assembly Upper CPU
Cover Speaker
Assembly Diskette Drive
Fan Assembly Audio Board System Board
Memory Module
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/removal.html (2 of 2)6/27/2004 2:52:23 AM
Specs
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Specifications
This chapter covers the following specifications of Compaq Presario 1600 Series Portable Computers:
● Computer models
● Physical and environmental
● System Interrupts
● System DMA
● System I/O Address
● System Memory Catalog
● Display
● Memory expansion
● Diskette drive
● Hard drive
● CD drive
● Battery pack
Physical and Environmental
Computer Specifications
U.S. Metric
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...%201600%20SERIES%201650%20and%201655/spec.html (1 of 9)6/27/2004 2:52:25 AM
Specs
Dimensions
Height Depth Width
1.97 in
12.20 in
10.08 in
4.95 cm
31.00 cm
25.40 cm
Weight
Model 1650 Model 1655
7.326 Ib
7.326 Ib
3.33 kg
3.33 kg
Stand-Alone (Battery Pack) Power Requirements
Nominal Operating Maximum Average Peak Operating
NiMH
W @ 9.6 V W @ 9.6 V W @ 9.6 V
Li-ion
W @ 14.4 V W @ 14.4 V W @ 14.4 V
AC Power Requirements
Operating Voltage Operating Current Operating Frequency
Maximum Transient
100-240 V
0.8/0.4 A RMS 47-63 Hz Meets IEC 801-4 and IEC801-5 1kV for 50 ns
Temperature
Operating 50° to 95 °F 10° to 35 °C Nonoperating -4° to 140 °F -20° to 60 °C
Relative Humidity (noncondensing)
Operating 10 to 90% 35°C to 90% Nonoperating (tw = 38.7°C max) 5 to 95% 60°C to 95%
Altitude
Operating 0 to 10,000 ft 0 to 3.15 km Nonoperating 0 to 30,000 ft 0 to 9.14 km
Shock
Operating 10 G, 11 ms, half sine Non operating 240 G, 2 ms, half sine
Vibration
Operating 0.5 G Nonoperating 1.5 G NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. Compaq Presario 1600
Series Portable Computers operate well within this range of temperatures.
System Interrupts
System Interrupts
Hardware IRQ System Function
IRQ0 Timer Interrupt IRQ1 Keyboard IRQ2 Interrupt Controller Cascade IRQ3 Internal Modem
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...%201600%20SERIES%201650%20and%201655/spec.html (2 of 9)6/27/2004 2:52:25 AM
Specs
IRQ4 Communication Port (COM1) IRQ5 Audio Controller IRQ6 Diskette Drive IRQ7 Parallel Port (LPT 1) (default) IRQ8 System CMOS/Real-Time Clock IRQ9 IRQ Holder for PCI Steering IRQ9 PCI-1131 CardBus Controller IRQ9 IRQ Holder for PCI Steering IRQ9 IRQ Holder for PCI Steering IRQ9 PCI-1131 CardBus Controller IRQ9 Video Controller IRQ11 Intel PCI to USB Universal Host Controller IRQ11 IRQ Holder for PCI Steering IRQ12 PS/2 TouchPad/Mouse IRQ13 Numeric data processor IRQ14 Intel PCI Bus Master IDE Controller IRQ14 Primary IDE Controller (dual fifo) IRQ15 Intel PCI Bus Master IDE Controller IRQ15 Secondary IDE Controller (dual fifo)
System DMA
System DMA
Hardware DMA System Function
DMA 0 Audio Controller DMA 1 Audio Controller DMA 2 Diskette Drive DMA 4 DMA Controller
System I/O Address
System I/O Address
I/O Address (Hex) System Function (Shipping Configuration)
0000h-000Fh DMA Controller
0020h-0021h Interrupt Controller
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...%201600%20SERIES%201650%20and%201655/spec.html (3 of 9)6/27/2004 2:52:25 AM
Specs
0040h-0043h System timer
0060h-0060h Keyboard Controller
0061h-0061h System speaker
0064h-0064h Standard 101/102-Key or Microsoft Natural Keyboard
0070h-0071h System CMOS/real time clock
0080h-0080h Motherboard resources
0081h-008Fh DMA Controller
00A0h-00A1h Programmable interrupt controller
00C0h-00DFh DMA
00ECh-00EFh Motherboard resources
00F0h-00FFh Numeric data processor
0170h-0177h Intel PCI Bus Master IDE Controller
0170h-0177h Secondary IDE Controller (dual fifo)
01F0h-01F7h Intel PCI Bus Master IDE Controller
01F0h-01F7h Primary IDE Controller (dual fifo)
0201h-0201h Gameport Joystick
0220h-022Fh ES1869 Plug and Play AudioDrive
02F8h-02FFh Compaq Presario 56K-DF
0330h-0331h ES1869 Plug and Play AudioDrive
0376h-0376h Secondary IDE controller (dual fifo)
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...%201600%20SERIES%201650%20and%201655/spec.html (4 of 9)6/27/2004 2:52:25 AM
Specs
0376h-0376h Intel PCI Bus Master IDE Controller
0378h-037Fh Printer Port (LPT1)
0388h-038Bh ES1869 Plug and Play AudioDrive
03B0h-03BBh Video Controller
03C0h-03DFh Video Controller
03F0h-03F5h Standard Floppy Disk Controller
03F6h-03F6h Intel PCI Bus Master IDE Controller
03F6h-03F6h Primary IDE controller (dual fifo)
03F7h-03F7h Standard Floppy Disk Controller
03F8h-03FFh Communications Port (COM1)
04D0h-04D1h Motherboard resources
0800h-0807h ES1869 Control Interface
0CF8h-0CFFh PCI bus
2180h-218Fh Motherboard resources
8000h-803Fh Motherboard resources
FCD0h-FCD7h Primary IDE controller (dual fifo)
FCD0h-FCDFh Intel PCI Bus Master IDEController
FCD8h-FCDFh Secondary IDE controller (dual fifo)
FCE0h-FCFFh Intel PCI to USB Universal Host Controller
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...%201600%20SERIES%201650%20and%201655/spec.html (5 of 9)6/27/2004 2:52:25 AM
Specs
System Memory Catalog
System Memory Catalog
Memory Address System Function
00000000h-0009FFFFh System board extension for PnP BIOS 000A0000h-000AFFFFh Graphics Controller 000B0000h-000BFFFFh Graphics Controller 000C0000h-000CBFFFh Graphics Controller
000DC000h-000FFFFFh System board extension for PnP BIOS 00100000h-03FFFFFFh System board extension for PnP BIOS 05000000h-05000FFFh PCI-1131 CardBus Controller 05001000h-05001FFFh PCI-1131 CardBus Controller 80000000h-803FFFFFh Intel Pentium(r) II Processor to PCI bridge FD000000h-FDFFFFFFh
Graphics Controller
FEA00000h-FEBFFFFFh
Graphics Controller
FED00000h-FEDFFFFFh
Graphics Controller
FFF80000h-FFFFFFFFh 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
Width Height Depth
Information not available
Information not available
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
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...%201600%20SERIES%201650%20and%201655/spec.html (6 of 9)6/27/2004 2:52:25 AM
Specs
12.1" (Diagonal) TFT Display
U.S. Metric
Dimensions Height Width
Information not available
Information not available
Display Dimensions Width Height Depth
Information not available
Information not available
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
Memory Expansion
Memory Expansion
System Memory Expansion Board Memory Total Memory
32-MB 16-MB 48-MB 32-MB 32-MB 64-MB 32-MB 64-MB 96-MB
Diskette Drive (Information not available)
Diskette Drive
Capacity per Diskette (High/Low)
Information not available
Diskette Size
Information not available
Number of LED Indicators (Read/Write)
Information not available
Number of Drives Supported
Information not available
Drive Rotation (rpm)
Information not available
Transfer Rate (Kbps)
Information not available
Bytes per Sector
Information not available
Sectors per Track (High/Low)
Information not available
Tracks per Side (High/Low)
Information not available
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...%201600%20SERIES%201650%20and%201655/spec.html (7 of 9)6/27/2004 2:52:25 AM
Specs
Access Times
Track-to-Track (ms) Average (ms) Setting Time (ms) Latency Average (ms)
Information not available
Cylinders (High/Low)
Information not available
Number of Read/Write Heads
Information not available
Hard Drive (Information not available)
Hard Drives
5.0-GB 4.0-GB
Capacity Per Drive
Information not available Information not available
Drive Type
Information not available Information not available
Logical Configuration
Cylinders Heads Sectors per track Bytes per sector
Information not available Information not available
Seek Times (Typical, Including settling in ms) Single track Average Full stroke
Information not available Information not available
Transfer Rate
At interface
Information not available Information not available
CD Drive (Information not available)
CD Drive
24× CD Drive
Dimensions
Information not available
Weight
Information not available
Rotational Speed
Information not available
Typical Transfer Rate
Sustained Data Transfer Rate
Information not available
Access Time
Average Random Access Time
Information not available
Spin Up time
Information not available
Data Buffer Capacity
Information not available
Battery Pack
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...%201600%20SERIES%201650%20and%201655/spec.html (8 of 9)6/27/2004 2:52:25 AM
Specs
Battery Pack
Nickel Metal Hydride (NiMH) Lithium Ion (Li ion) *
Dimensions
Height Length Width
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)
Weight
1.01 Ib (458.1 g) 0.90 Ib (408.2 g)
Battery Pack Operating Time
2:30 hr 3:00 hr
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
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...%201600%20SERIES%201650%20and%201655/spec.html (9 of 9)6/27/2004 2:52:25 AM
Pins
Compaq.com
United States
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 Signal Pin Signal
1 Strobe* 10 Acknowledge* 2 Data Bit 0 11 Busy 3 Data Bit 1 12 Paper Out 4 Data Bit 2 13 Select 5 Data Bit 3 14 Auto Linefeed* 6 Data Bit 4 15 Error* 7 Data Bit 5 16 Initialize Printer* 8 Data Bit 6 17 Select In* 9 Data Bit 7 18-25 Signal Ground * = Active low
Serial Connector
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/connec1.html (1 of 5)6/27/2004 2:52:29 AM
Pins
Connector Pin Signal
1
2
3
4
5
6
7
8
9
Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Ready to Send
Clear to Send
Ring Indicator
Keyboard/Mouse
Connector Pin Signal
1
2
3
4
5
6
Data
Not defined
Ground
+5 VDC
Clock
Not defined
External VGA Monitor
Connector Pin Signal
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/connec1.html (2 of 5)6/27/2004 2:52:29 AM
Pins
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Red Analog
Green Analog
Blue Analog
Not connected
Ground
Ground Analog
Ground Analog
Ground Analog
Not connected
Ground
Monitor Detect
DDC2B Data
Horizontal Sync
Vertical Sync
DDC2B Clock
Universal Serial Bus
Connector Pin Signal
1 Ground
2 D+
3 D-
4 Power
Port Replicator
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/connec1.html (3 of 5)6/27/2004 2:52:29 AM
Pins
Pin Signal Pin Signal Pin Signal Pin Signal
1 N.C. 21 Printer Data 0 41 N.C. 61 CTS 2 N.C. 22 Printer Data 1 42 N.C. 62 DCD 3 Kb Clk 1 23 Printer Data 2 43 Switch A 63 DSR 4 Joystick Data A 24 Printer Data 3 44 Switch B 64 TXD 5 Kb Data 1 25 Printer Data 4 45 Switch C 65 RTS 6 Joystick Data B 26 Printer Data 5 46 Switch D 66 N.C. 7 Kb Clk 2 27 Printer Data 6 47 N.C. 67 Detect 8 Joystick Data C 28 Printer Data 7 48 MIDI In 68 N.C. 9 Kb Data 2 29 USB 0 - 49 MIDI Out 69 V. Sync 10 Joystick Data D 30 USB 0 + 50 +5V 70 Ground 11 Lp Select In 31 USB 1 - 51 +5V 71 H. Sync 12 Lp Paper End 32 USB 1+ 52 N.C. 72 Ground 13 Lp Initialize 33 Adapter In 53 N.C. 73 Blue 14 Lp Busy 34 Adapter In 54 N.C. 74 Ground 15 Lp Error 35 Adapter In 55 N.C. 75 Green 16 Lp Ack 36 Adapter In 56 Dock ID - 76 Ground 17 Lp Auto Feed 37 Adapter In 57 RXD 77 Red 18 Lp Strobe 38 Adapter In 58 Lp Select 78 Ground 19 DDC2BC 39 N.C. 59 RI 79 N.C. 20 DDC2BD 40 N.C. 60 DTR 80 N.C.
Modem
Connector Pin Signal
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/connec1.html (4 of 5)6/27/2004 2:52:29 AM
Pins
1
2
3
4
5
6
Unused
Unused
Tip
Ring
Unused
Unused
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/connec1.html (5 of 5)6/27/2004 2:52:29 AM
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked%20ok/NO...PRESARIO%201600%20SERIES%201650%20and%201655/battery.html
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
NOTE:
The power consumption requirements for PC Cards vary widely. Some cards drain the battery pack very rapidly.
Battery pack operating time can be increased by as much as 50 percent by controlling the energy required by the computer and the energy stored in the battery pack.
Minimizing the Energy Required
To minimize the energy required by the computer, follow these steps:
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/battery.html (1 of 3)6/27/2004 2:52:30 AM
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked%20ok/NO...PRESARIO%201600%20SERIES%201650%20and%201655/battery.html
● 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
Model 1/NiMH Battery Pack 4.0 hours premature termination 2:00 hr
Model 2/Li ion Battery Pack 4.5 hours premature termination 2:50 hr
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/battery.html (2 of 3)6/27/2004 2:52:30 AM
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked%20ok/NO...PRESARIO%201600%20SERIES%201650%20and%201655/battery.html
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
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/battery.html (3 of 3)6/27/2004 2:52:30 AM
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Models and Features
Models and Features
Controls and Lights
Left Side Components
Right Side Components
Bottom of Unit
Rear Connectors
Port Replicator
Power Management for Windows 98
Compaq Presario 1600
Series Portable Computer Models
Model 1650
Model 1655
Display
12. 1" TFT 13. 3" TFT
Processor
266 Pentium II 266 Pentium II
Hard Drive
4.0-GB 4.0-GB
CD Drive
24× MAX 24× MAX
Modem
M+-56.0 Kbps or K-56.0 Kbps with ITU V.90
K-56.0 Kbps with ITU V.90
1.800.AT.COMPAQ
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/models.html (1 of 2)6/27/2004 2:52:35 AM
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/models.html (2 of 2)6/27/2004 2:52:35 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Controls and Lights
Models and Features
Controls and Lights
Left Side Components
Right Side Components
Bottom of Unit
Rear Connectors
Port Replicator
Power Management for Windows 98
Front of Unit
1. Display
9.CD Previous Track
2. Power (On/ Off) Button
10. CD Next Track
3. DisqPlay Switch
11. Keyboard
4. Volume Control Down Button
12. Touch Pad
5. Volume Control Up Button
13. Left Touch Pad Button
6. Status Panel
14. Right Touch Pad Button
7. CD Play/ Pause
15. Integrated Speakers
8. CD Stop
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/contrs.html (1 of 2)6/27/2004 2:52:36 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/contrs.html (2 of 2)6/27/2004 2:52:36 AM
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Left Side Components
Models and Features
Controls and Lights
Left Side Components
Right Side Components
Bottom of Unit
Rear Connectors
Port Replicator
Power Management for Windows 98
1. Modem Jack
2. Diskette Drive Slot
3. Diskette Eject Button
4. Battery Pack
5. Left Speaker Port
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20check...01600%20SERIES%201650%20and%201655/leftsid.html (1 of 2)6/27/2004 2:52:36 AM
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20check...01600%20SERIES%201650%20and%201655/leftsid.html (2 of 2)6/27/2004 2:52:36 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Right Side Components
Models and Features
Controls and Lights
Left Side Components
Right Side Components
Bottom of Unit
Rear Connectors
Port Replicator
Power Management for Windows 98
1. Headphone Out
6. Manual Eject Hole
2.Line-In Jack
7. PCMCIA (Top Slot)
3. External Microphone Jack
8.PCMCIA (Bottom Slot)
4. CD Drive
9.PCMCIA Eject Levers
5. CD Drive Eject Button
10. Right Speaker Port
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked...IO%201600%20SERIES%201650%20and%201655/right.html6/27/2004 2:52:37 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Bottom of Unit
Models and Features
Controls and Lights
Left Side Components
Right Side Components
Bottom of Unit
Rear Connectors
Port Replicator
Power Management for Windows 98
1. Memory Compartment
2. Feet
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked...O%201600%20SERIES%201650%20and%201655/bottom.html6/27/2004 2:52:37 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Rear Connectors
Models and Features
Controls and Lights
Left Side Components
Right Side Components
Bottom of Unit
Rear Connectors
Port Replicator
Power Management for Windows 98
1.Keyboard/ Mouse Port
6. External Monitor Port
2. Parallel Printer Port
7. USB
3. Port Replicator 8. AC Adapter
4. Fan Exhaust 9. Security Slot
5. Serial Port
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked...O%201600%20SERIES%201650%20and%201655/connec.html6/27/2004 2:52:38 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Models and Features
Controls and Lights
Left Side Components
Right Side Components
Bottom of Unit
Rear Connectors
Port Replicator
Power Management for Windows 98
This section is an overview of the Compaq Presario 1600 Series Portable Computer Port Replicator and covers the following topics:
■ System Overview
■ Features
■ Port Replicator Rear Connectors
■ 80-Pin Connectors
System Overview
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.
Features
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.)
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...%201600%20SERIES%201650%20and%201655/port.html (1 of 2)6/27/2004 2:52:41 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
Compaq Home
Search
Products
Service
Worldwide
Compaq.com
Legal Notices and Privacy Statement
Revised: dd Month 1998
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...%201600%20SERIES%201650%20and%201655/port.html (2 of 2)6/27/2004 2:52:41 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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 for Windows 98
The following power management features are available for conserving AC power and extending battery operating time:
● 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.)
IMPORTANT:
If you're on a network, it's recommended that you set System Standby to Never.
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
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/power.html (1 of 4)6/27/2004 2:52:42 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
Always on System Standby: Never 15 minutes Turn OFF Monitor
After 15 minutes After 10 minutes
Always on System Standby: After 15 minutes After 10 minutes
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: Default Tab: ADVANCED Default
Display Properties
Tab: POWER METER: Monitor Laptop Display (Maximum resolution according to unit display size)
System Properties
Tab: Device Manager Default:
Disk Drives: X DMA CD ROM: 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 wake­up, or if you lose power while using the AC adapter.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/power.html (2 of 4)6/27/2004 2:52:42 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
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
Power Button once
Press Power Button 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
Windows shutdown via the start button, or press and hold down the power button for 4 seconds
Press Power Button once
No Power LED, blank screen
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
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/power.html (3 of 4)6/27/2004 2:52:42 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
(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.
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/power.html (4 of 4)6/27/2004 2:52:42 AM
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Preliminary Steps
Before running POST, complete the following preliminary steps:
1. If a power-on password has been established, type the password and press the Enter key. If the password is not known,
clear the password.
2. Run 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.
IMPORTANT:
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 the external device connected.
5. Install loopback plugs in the serial and parallel connectors if you would like to test these ports.
6. Ensure the hard drive is installed in the computer.
7. Ensure that the battery pack is inserted in the computer and the computer is connected to an external AC power source.
When the preliminary steps are completed, you are ready to run POST.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/prelim.html (1 of 2)6/27/2004 2:52:43 AM
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/prelim.html (2 of 2)6/27/2004 2:52:43 AM
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
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.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/ponpass.html (1 of 2)6/27/2004 2:52:44 AM
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/ponpass.html (2 of 2)6/27/2004 2:52:44 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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.
NOTE:
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.
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
Configuration incorrect Run Computer Setup. CMOS reflects that an invalid
configuration has been set.
Run Computer Setup.
RAM failure 1. Replace the memory modules.
2. Replace the system board.
Memory test data error 1. Replace the memory modules.
2. Replace the system board.
XX000YZZ RAM failure Replace the system board.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/power1.html (1 of 2)6/27/2004 2:52:44 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
XX000YZZ 201-Memory Error
Probable Cause Recommended Action
301-Keyboard Error
Probable Cause Recommended Action Keyboard failure 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
Probable Cause Recommended Action 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 Mismatch in drive type Run Computer Setup.
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.
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/power1.html (2 of 2)6/27/2004 2:52:44 AM
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Compaq Diagnostics is installed on the hard drive of the computer. Run the Diagnostics utilities when you want to view or test system information and if you have installed or connected devices. If you run Compaq Diagnostics from a diskette, ensure that it is version
10.11 or later.
The Diagnostics menu includes the following utilities:
■ Computer Checkup (TEST)
■ View System Information (INSPECT)
■ Prepare Computer for a Compaq Service Call (RemotePaq)
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
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...1600%20SERIES%201650%20and%201655/compaq.html (1 of 3)6/27/2004 2:52:45 AM
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.
NOTE:
If the list is incorrect, ensure that any new devices are installed properly.
9. Select one of the following from the Test Option menu:
■ Quick Check Diagnostics. Runs a quick, general test on each device with a minimal
number of prompts. If errors occur, they display when the testing is complete. You cannot print or save the error messages.
■ Automatic Diagnostics. Runs unattended, maximum testing of each device with
minimal prompts. You can choose how many times to run the tests, to stop on errors, or to print or save a log of errors.
■ Prompted Diagnostics. Allows maximum control over testing the devices. You can
choose attended or unattended testing, decide to stop on errors, or choose to print or save a log of errors.
10. Follow the instructions on the screen as the devices are tested. When testing is complete, the Test Option menu appears.
11. Exit the Test Option menu.
12. Exit the Diagnostics menu.
View System Information (INSPECT)
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...1600%20SERIES%201650%20and%201655/compaq.html (2 of 3)6/27/2004 2:52:45 AM
The View System Information (INSPECT) utility provides information about the computer and installed or connected devices. You can display, print, or save the information.
Follow these steps to run View System Information (INSPECT) from the Compaq Diagnostics diskette:
1. Turn on the external devices that you want to test. Connect the printer if you want to print the information.
2. Insert the Compaq Diagnostics diskette in drive A.
3. Turn on or restart the computer. The computer starts from drive A, and the Diagnostics Welcome screen appears.
4. Press Enter to continue. The Diagnostics menu appears.
5. Select View System Information (INSPECT) from the Diagnostics menu.
6. Select the item you want to view from the following list:
System Memory ROM Audio Keyboard Operating system System ports System files System storage Windows files Graphics
7. Follow the instructions on the screen to cycle through the screens, to return to the list and choose another item, or to print the information.
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...1600%20SERIES%201650%20and%201655/compaq.html (3 of 3)6/27/2004 2:52:45 AM
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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 Diagnostic program. These error codes help identify possibly defective subassemblies.
The following tables list error codes, a description of the error condition, and the action required to resolve the error condition.
IMPORTANT:
Retest the system after completing each step. If the problem has been resolved, do not proceed with the remaining steps.
For the removal and replacement of a particular subassembly, see Removal and
Replacement Procedures.
Select error codes by number or type:
101 through 114 Processor Test 200 through 215 Memory Test 300 through 304 Keyboard Test 401 through 403 Parallel Printer Test 600 through 699 Diskette Drive Test 1101 Serial Test 1701 through 1736 Hard Drive Test
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/error.html (1 of 7)6/27/2004 2:52:47 AM
501 through 516 Video Test 2402 through 2456 2458 through 2480 3206 Audio Test 8601 through 8602 Touch Pad Pointing Device Test 3301 through 6623 CD Test
Processor Test Error Codes
Error
Code Description Recommended Action
101-xx CPU test failed Replace the processor and retest. 102-xx Coprocessor or Weitek Error 1. Run the Configuration and
Diagnostics Utilities.
2. Replace the processor board and
retest. 103-xx DMA page registers test failed Replace the system board and retest. 104-xx Interrupt controller master test
failed 105-xx Port 61 error 106-xx Keyboard controller self-test failed 107-xx CMOS RAM test failed 108-xx CMOS interrupt test failed 109-xx CMOS clock test failed 110-xx Programmable timer load data test
failed 113-xx Protected mode test failed 114-01 Speaker test failed 1. Check system configuration.
2. Verify cable connections to speaker.
3. Replace the system board and retest.
Memory Test Error Codes
200-xx Memory machine ID test failed 1. Flash the system ROM and retest.
2. Replace the system board and retest.
202-xx Memory system ROM checksum
failed 203-xx Write/Read test failed 1. Remove the memory module and
retest.
2. Install a new memory module and retest.
204-xx Address test failed 211-xx Random pattern test failed 214-xx Noise test failed
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/error.html (2 of 7)6/27/2004 2:52:47 AM
215-xx Random address test failed
Keyboard Test Error Codes
300-xx Failed ID Test 1. Check the keyboard connection. If
disconnected, turn off the computer and connect the keyboard.
2. Replace the keyboard and retest.
3. Replace the system board and retest.
301-xx Failed Selftest/Interface Test 302-xx Failed Individual Key Test 304-xx Failed Keyboard Repeat Test
Parallel Printer Test Error Codes
401-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.
402-xx Failed Port Test
403-xx Printer pattern test failed
Diskette Drive Test
600-xx
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.
601-xx Diskette format failed 602-xx Diskette read test failed
603-xx
Diskette write, read, compare test
failed 604-xx Diskette random read test failed 605-xx Diskette ID media failed 606-xx Diskette speed test failed 609-xx Diskette reset controller test failed 610-xx Diskette change line test failed 697-xx Diskette type error
698-xx
Diskette drive speed not within
limits
699-xx
Diskette drive/media ID error 1. Replace media.
2. Run the Configuration and Diagnostics Utilities.
Serial Test Error Codes
1101-xx
Serial port test failed 1. Check port configuration
2. Replace the system board and retest.
Hard Drive Test Error Codes
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/error.html (3 of 7)6/27/2004 2:52:47 AM
1701-xx Hard drive format 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.
1702-xx Hard drive read test failed 1703-xx
Hard drive write/read/compare
test failed 1704-xx Hard drive random seek test failed 1705-xx Hard drive controller test failed 1706-xx Hard drive ready test failed 1707-xx Hard drive recalibration test failed
1708-xx
Hard drive format bad track test
failed 1709-xx
Hard drive reset controller test
failed 1710-xx Hard drive park head test failed 1715-xx Hard drive head select test failed
1716-xx
Hard drive conditional format test
failed 1717-xx Hard drive ECC* test failed 1719-xx Hard drive power mode test failed 1724-xx Network preparation test failed 1736-xx Drive monitoring test failed * ECC = Error Correction Code
Video Test Error Codes
501-xx Video controller test failed The following apply to error codes 501-
xx through 516-xx:
1. Disconnect external monitor and test with internal LCD display.
2. Replace the display assembly and retest.
3. Replace the system board and retest.
502-xx Video memory test failed 503-xx Video attribute test failed 504-xx Video character set test failed
505-xx
Video 80 × 25 mode 9 × 14
character cell test failed 506-xx
Video 80 × 25 mode 8 × 8
character cell test failed 507-xx Video 40 × 25 mode test failed
508-xx
Video 320 × 200 mode color set 0
test failed 509-xx
Video 320 × 200 mode color set 1
test failed 510-xx Video 640 × 200 mode test failed
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/error.html (4 of 7)6/27/2004 2:52:47 AM
511-xx
Video screen memory page test
failed 512-xx Video gray scale test failed 514-xx Video white screen test failed 516-xx Video noise pattern test failed 2402-xx Video memory test failed The following steps apply to error codes
2402-xx through 2456-xx:
1. Run the Configuration and Diagnostics Utilities.
2. Replace the display assembly and retest.
3. Replace the system board and retest.
2403-xx Video attribute test failed 2404-xx Video character set test failed
2405-xx
Video 80 × 25 mode 9 × 14
character cell test failed 2406-xx
Video 80 × 25 mode 8 × 8
character cell test failed 2408-xx
Video 320 × 200 mode color set 0
test failed 2409-xx
Video 320 × 200 mode color set 1
test failed 2410-xx Video 640 × 200 mode test failed
2411-xx
Video screen memory page test
failed 2412-xx Video gray scale test failed 2414-xx Video white screen test failed
2416-xx Video noise pattern test failed
2418-xx ECG/VGC memory test failed
2419-xx 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.
2421-xx ECG/VGC 640 × 200 graphics
mode test failed 2422-xx ECG/VGC 640 × 350 16 color set
test failed 2423-xx ECG/VGC 640 × 350 64 color set
test failed 2424-xx ECG/VGC monochrome text mode
test failed
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/error.html (5 of 7)6/27/2004 2:52:47 AM
2425-xx ECG/VGC monochrome graphics
mode test failed 2431-xx 640 × 480 graphics test failure
2432-xx 320 × 200 graphics (256 color
mode) test failure 2448-xx Advanced VGA Controller test failed
2451-xx 132-column Advanced VGA test
failed 2456-xx Advanced VGA 256 Color
test failed 2458-xx Advanced VGA BitBLT test The following step applies to error
codes 2458-xx through 2480-xx:
Replace the system board and retest.
2468-xx Advanced VGA DAC test
2477-xx Advanced VGA data path test
2478-xx Advanced VGA BitBLT test
2480-xx 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 Mouse test failed 1. Replace the TouchPad and retest.
2. Replace the system board and retest.
8602-xx Interface test failed
CD Drive Test Error Codes
3301-xx CD drive read test failed 1. Replace the CD and retest.
2. Verify that the speakers are connected.
3. Verify that drivers are loaded and properly installed.
3305-xx CD drive seek test failed
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/error.html (6 of 7)6/27/2004 2:52:47 AM
4. Replace the CD drive and retest.
5. Replace the system board and retest.
6600-xx ID test failed
6605-xx Read test failed
6608-xx Controller test failed
6623-xx Random read test failed
Back to top
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...201600%20SERIES%201650%20and%201655/error.html (7 of 7)6/27/2004 2:52:47 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Troubleshooting Without Diagnostics
This section provides information about how to identify and correct some common hardware, memory, and software problems. It also explains several types of common messages that may be displayed on the screen. The following pages contain troubleshooting information on:
Audio Memory Battery/Battery gauge PC Card CD drive Power Diskette/Diskette drive Printer Display Touch Pad Hard drive Keyboard/Numeric keypad Hardware Installation
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.
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked...RIO%201600%20SERIES%201650%20and%201655/tswo.html6/27/2004 2:52:48 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
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 Power­On Self-Test (POST).
This is typical; it indicates successful completion of the Power-On Self-Test (POST).
No action is required.
Solving Battery Pack and Battery Gauge Problems
Some common causes and solutions for battery pack problems are listed in the following table. The "Solving Power Problems" section in this chapter may also be applicable.
Solving Battery Pack and Battery Gauge Problems
Problem 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.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/solving.html (1 of 8)6/27/2004 2:52:51 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
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 unit) blinks to indicate low battery condition, but computer does not beep.
Volume is turned down too low. Adjust the volume.
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 time you turn on the computer.
RTC battery is dead. Replace the RTC battery.
Problem Probable Cause Solution(s)
Battery charge does not last as long as expected.
Battery is being exposed to high temperatures or extremely cold temperatures.
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.
Battery has partially self-discharged. Recharge the battery. Discharge the
battery completely and then recharge it.
Power management is disabled. Set a power management level in
Computer Setup.
An external device or PC Card is draining the battery.
Turn off or disconnect external devices 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 the battery.
Turn off or disconnect external devices when not using them.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/solving.html (2 of 8)6/27/2004 2:52:51 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
Battery pack has partially self­discharged.
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.
Diskette is write-protected. 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.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/solving.html (3 of 8)6/27/2004 2:52:51 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
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 being
used.
Use the type of diskette 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.
Adjust the Brightness of the display by using Fn + F7 (¯ ) or Fn + F8 (- ).
Computer screen is in direct light. Tilt display or move computer.
Screen is blank. Screen save was initiated by Power
Management due to lack of user activity.
Press any key or touch the Touch Pad.
Display has overheated. If computer is in direct sunlight,
move it and allow it to cool off.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/solving.html (4 of 8)6/27/2004 2:52:51 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
Display is blank and the Suspend icon is flashing.
System is in Suspend mode. Press any key or touch the Touch Pad.
Internal display is blank and the screen on an external monitor displays information.
Display function was switched to the external monitor.
Use Fn + F2 to switch between LCD or CRT.
Problem Probable Cause Solution(s)
Internal display flashes or has garbled characters when computer is connected to external monitor.
Using 1024 × 768 or higher resolution on external monitor and have toggled back to internal display, which supports up to 800 × 600.
Restart the computer.
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 cable connections
Replace the display assembly.
Defective inverter board. Replace the display assembly. Defective display cable. Replace the display assembly. Defective display panel. Replace the display assembly. Defective 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.**
Defective system board. Replace the system board.
Backlight (brightness) cannot be adjusted with Fn + F7 (¯ ) or Fn + F8 (- ).***
Improper display cable connections.
1. Reseat the display cable to the system board.
2. Replace the display assembly.
Defective inverter board. Replace the display assembly. Defective display cable. Replace the display assembly. Defective system board. Replace the system board. Defective inverter board. Replace the display assembly. Defective display cable. Replace the display assembly. Defective system board. 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)
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/solving.html (5 of 8)6/27/2004 2:52:51 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
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. Replace the display assembly.
Defective inverter board. Replace the display assembly.
Defective system board. Replace the system board.
NOTE:
To perform a "self-test" on an external VGA color monitor, complete the following steps: The screen 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 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.
System entered Hibernation due to low battery condition and is now exiting from it.
Give the system time to restore the previously saved data to its exact state before Hibernation.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/solving.html (6 of 8)6/27/2004 2:52:51 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
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 Probable Cause Solutions(s)
A new device is not recognized as part of the computer system.
Cable(s) of new external device are loose or power cables are unplugged.
Ensure that all cables are properly and securely connected.
Power switch of new external device is not turned on.
Turn off the computer, turn 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 disabled and Num Lock function is on.
External numeric keypad is connected to the computer.
Disconnect the external numeric keypad from the 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)
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/solving.html (7 of 8)6/27/2004 2:52:51 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
Memory count during Power-On Self-Test (POST) is incorrect.
Optional memory expansion card is installed incorrectly, is incompatible with the computer, or is defective.
Ensure that the optional memory expansion card is installed correctly.
"Out of Memory" message is displayed on the screen or insufficient memory error occurs during operation.
System ran out of memory for the application.
Check the application documentation for memory requirements.
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)
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/solving.html (8 of 8)6/27/2004 2:52:51 AM
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...600%20SERIES%201650%20and%201655/compaq1.html (1 of 2)6/27/2004 2:52:51 AM
IMPORTANT:
Ensure that there is no diskette in the diskette drive and that 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.
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...600%20SERIES%201650%20and%201655/compaq1.html (2 of 2)6/27/2004 2:52:51 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
System Unit
System Unit Boards Display
Assembly Mass Storage
Devices Miscellaneous
Cable Kit Cables Miscellaneous
Hardware and Plastics Kit
Miscellaneous Parts
Documentation and Software
Description Spare
Part Number
1. Status Panel
293737­001
2. Palmrest Cover
332226­001
3. Keyboard United
States
330981­001
Canada 330981-
401
4. Upper CPU Cover with Power Switch Connector (Top Plastics)
293739­001
5. Speaker Assembly w/ Cable
293883­001
6. Battery Pack, Li ion
330936­001
7. CPU Base Assembly Enclosure, (Bottom Plastics)
331156­001
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/system.html (1 of 2)6/27/2004 2:52:52 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/system.html (2 of 2)6/27/2004 2:52:52 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Boards
System Unit Boards Display
Assembly Mass Storage
Devices Miscellaneous
Cable Kit Cables Miscellaneous
Hardware and Plastics Kit
Miscellaneous Parts
Documentation and Software
Description Spare
Part Number
1. Heatspreader
331164­001
2.Processor Pentium II/233 Processor Pentium II/266
347556­001
330983­001
3. Audio Board
331010­001
4. LCD Interface Board TFT w/ header
293156­001
5. Modem, M+- 56.0 Kbps Data/Fax 138610-001
Modem, K-56.0 Kbps Data/Fax 138657-001
6. Fan w/ Cable
332228­001
7. Voltage Converter
331019­001
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/boards.html (1 of 2)6/27/2004 2:52:53 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
8. System Board, w/o processor
331009­001
9. Memory Module 16-MB 32-MB 64-MB
293726­001 293727­001 332208­001
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/boards.html (2 of 2)6/27/2004 2:52:53 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
System Unit Boards Display
Assembly Mass Storage
Devices Miscellaneous
Cable Kit Cables Miscellaneous
Hardware and Plastics Kit
Miscellaneous Parts
Documentation and Software
Description Spare Part
Number
Display Assembly w/ Cable, 12.1 inch TFT
Display Assembly w/ Cable, 13.3 inch TFT
331014-001
331012-001
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked...%201600%20SERIES%201650%20and%201655/display.html6/27/2004 2:52:54 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Mass Storage Devices
System Unit Boards Display
Assembly Mass Storage
Devices Miscellaneous
Cable Kit Cables Miscellaneous
Hardware and Plastics Kit
Miscellaneous Parts
Documentation and Software
Description Spare
Part Number
1. Diskette Drive w/ Cable, 1.44 MB,
3.5 inch
331165­001
2. Hard Drive w/ Mounting Bracket,
5.0-GB
Hard Drive w/Mounting Bracket 4.0­GB
331011­001
330969­001
3. 24× MAX CD Drive
330967­001
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checke...IO%201600%20SERIES%201650%20and%201655/mass.html6/27/2004 2:52:54 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Miscellaneous Cables Kit
System Unit Boards Display
Assembly Mass Storage
Devices Miscellaneous
Cable Kit Cables Miscellaneous
Hardware and Plastics Kit
Miscellaneous Parts
Documentation and Software
Miscellaneous Cables Kit
Spare Part Number: 332234-001
Description Quantity
1a. Cable, Diskette Drive 1
1b. Cable, Hard Drive 1
1c. Cable, CD Drive 1
1d. Cable, TouchPad SW Board 1
1e. Cable, Fax/Modem 1
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked...O%201600%20SERIES%201650%20and%201655/cables.html6/27/2004 2:52:55 AM
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
System Unit Boards Display
Assembly Mass Storage
Devices Miscellaneous
Cable Kit Cables Miscellaneous
Hardware and Plastics Kit
Miscellaneous Parts
Documentation and Software
Power Cords
Description Spare Part Number
Power Cord
Modem Cables
Description Spare Part Number
1. Modem
United States/ French Canada 293831-001
Asia Pacific 137256-001
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...1600%20SERIES%201650%20and%201655/newp41.html (1 of 2)6/27/2004 2:52:56 AM
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...1600%20SERIES%201650%20and%201655/newp41.html (2 of 2)6/27/2004 2:52:56 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Miscellaneous Hardware and Plastics Kit
System Unit Boards Display
Assembly Mass Storage
Devices Miscellaneous
Cable Kit Cables Miscellaneous
Hardware and Plastics Kit
Miscellaneous Parts
Documentation and Software
Miscellaneous Hardware and Plastics Kit
Spare Part Number: 293761-001
Description Quantity
1. Door, Battery Pack 1 each
2. Cover, Memory Module 1 each
3. Door, PCMCIA 2 each
4. Hinge (Clutch) Cover, Left 1 each
5. Hinge (Clutch) Cover, Right 1 each
6. Rubber Foot 10 each
7. Stand Foot (plastic) 10 each
8. Hard Drive Mounting Bracket 1 each
9. Stiffener Bracket 1 each
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked%20ok/NOTEBOOKS/PRESARIO%201600%20SERIES%201650%20and%201655/newp6.html (1 of 2)6/27/2004 2:52:56 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked%20ok/NOTEBOOKS/PRESARIO%201600%20SERIES%201650%20and%201655/newp6.html (2 of 2)6/27/2004 2:52:56 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Miscellaneous Parts
System Unit Boards Display
Assembly Mass Storage
Devices Miscellaneous
Cable Kit Cables Miscellaneous
Hardware and Plastics Kit
Miscellaneous Parts
Documentation and Software
Description Spare Part
Number
1. AC Adapter 298239-001
2. Port Replicator
293857-001
Clock Battery (Not Shown)
117099-001
Miscellaneous Screw Kit (Not Shown)
293760-001
Logo Kit (Not Shown)
203727-001
Return Kit (Not Shown)
293799-001
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checked...201600%20SERIES%201650%20and%201655/miscella.html6/27/2004 2:52:57 AM
"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Documentation and Software
System Unit Boards Display
Assembly Mass Storage
Devices Miscellaneous
Cable Kit Cables Miscellaneous
Hardware and Plastics Kit
Miscellaneous Parts
Documentation and Software
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
QuickFind for Windows, Europe, Middle East, Africa
*QuickFind is updated monthly. To complete the QuickFind part number, add the suffix from the table below for the desired month. If you do not specify the 3-digit suffix, the default is the current month in which the order is placed.
QuickFind Part Number Suffix
Suffix Month Suffix Month
-001 January -007 July
-002 February -008 August
-003 March -009 September
-004 April -010 October
-005 May -011 November
-006 June -012 December
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20checke...%201600%20SERIES%201650%20and%201655/docume.html6/27/2004 2:52:58 AM
ESD
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Electrostatic Discharge
A sudden discharge of static electricity from a finger or other conductor can destroy static­sensitive 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 12,000 V 5,000 V 3,000 V Motions of bench worker 6,000 V 800 V 400 V Removing DIPS from plastic tubes 2,000 V 700 V 400 V
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/electro.html (1 of 2)6/27/2004 2:52:58 AM
ESD
Removing DIPS from vinyl trays 11,500 V 4,000 V 2,000 V Removing DIPS from Styrofoam 14,500 V 5,000 V 3,500 V Removing bubble pack from PCBs 26,000 V 20,000 V 7,000 V Packing PCBs in foam-lined box 21,000 V 11,000 V 5,000 V NOTE: 700 volts can degrade a product.
Return to Removal & Replacement Procedures
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/electro.html (2 of 2)6/27/2004 2:52:58 AM
Service Cons.
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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 screw is used during the reassembly process, it can damage the unit. Compaq strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.
IMPORTANT:
As each subassembly is removed from the computer, it should be placed away from the work area to prevent damage.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/service.html (1 of 2)6/27/2004 2:52:59 AM
Service Cons.
Return to Removal & Replacement Procedures
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/service.html (2 of 2)6/27/2004 2:52:59 AM
Cable POs.
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
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
Use the following precautions when handling cables to avoid damage to the cable or computer:
● Always handle cables by their connectors.
● Avoid bending, twisting, or pulling on the cables.
● Apply minimum required force when seating or unseating the cables from their
connectors.
● Place the cables in such a manner that they cannot be caught or snagged by parts
being removed or replaced.
● Handle flex cables with extreme care; they can tear easily.
CAUTION: When serving these computers, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can cause severe damage to the unit.
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.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/cables1.html (1 of 2)6/27/2004 2:52:59 AM
Cable POs.
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.
Back to Top of Page
Return to Removal & Replacement Procedures
Compaq Home
Search
Products
Service
Worldwide
Compaq.com
Legal Notices and Privacy Statement
Revised: dd Month 1998
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...1600%20SERIES%201650%20and%201655/cables1.html (2 of 2)6/27/2004 2:52:59 AM
Preparing the Computer
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Preparing the Computer for Disassembly
Electrostatic Discharge
Service Considerations
Cables and Connectors
Preparing the Computer for Disassembly
Battery Pack Palmrest
Cover with Touch Pad
Keyboard Heatspreader Modem Processor Status Panel Interface
Board
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.
IMPORTANT:
The battery pack should be removed before performing any internal maintenance on the 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.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...01600%20SERIES%201650%20and%201655/newp1.html (1 of 2)6/27/2004 2:53:00 AM
Preparing the Computer
Hard Drives Battery
Charger Board CD Drive Display Panel
Assembly Upper CPU
Cover Speaker
Assembly Diskette Drive Fan Assembly Audio Board System Board Memory
Module
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.
NOTE:
The Compaq Presario 1600 Series Portable Computers have several screws of various sizes which are not interchangeable. Care must be taken during reassembly to ensure that the correct screws are used in their correct location. During removal please keep respective screws with their associate sub-assembly.
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...01600%20SERIES%201650%20and%201655/newp1.html (2 of 2)6/27/2004 2:53:00 AM
Battery P
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Removing the Battery Pack
Electrostatic Discharge
Service Considerations
Cables and Connectors
Preparing the Computer for Disassembly
Battery Pack Palmrest
Cover with Touch Pad
Keyboard Heatspreader Modem Processor Status Panel Interface
Board Hard Drives Battery
Charger Board
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.
NOTE:
The replacement battery pack will come with a removable door. To properly replace the battery pack follow the instructions below.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...1600%20SERIES%201650%20and%201655/newp12.html (1 of 2)6/27/2004 2:53:01 AM
Battery P
CD Drive Display Panel
Assembly Upper CPU
Cover Speaker
Assembly Diskette Drive Fan Assembly Audio Board System Board Memory
Module
To replace a new battery pack, complete the following steps:
1. Push forward on the battery pack with tab to insert the battery pack into the battery pack slot.
2. Slide the battery pack door up onto the opening for the battery pack door.
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...1600%20SERIES%201650%20and%201655/newp12.html (2 of 2)6/27/2004 2:53:01 AM
Palmrest
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Removing the Palmrest Cover with Touch Pad
Electrostatic Discharge
Service Considerations
Cables and Connectors
Preparing the Computer for Disassembly
Battery Pack Palmrest
Cover with Touch Pad
Keyboard Heatspreader Modem Processor Status Panel Interface
Board Hard Drives Battery
Charger Board
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.
NOTE:
It is not necessary to remove the display panel assembly to access the interior components of the computer.
To remove the palmrest cover with touch pad, complete the following steps:
1. Prepare the
computer for disassembly.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...O%201600%20SERIES%201650%20and%201655/51.html (1 of 2)6/27/2004 2:53:02 AM
Palmrest
CD Drive Display Panel
Assembly Upper CPU
Cover Speaker
Assembly Diskette Drive Fan Assembly Audio Board System Board Memory
Module
2. Close the computer and turn the computer upside down.
3. Remove three screws from the bottom of the computer.
Next Step
1.800.AT.COMPAQ
privacy and legal statement
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...O%201600%20SERIES%201650%20and%201655/51.html (2 of 2)6/27/2004 2:53:02 AM
Keyboard
United States June 27, 2004
COMPAQ
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
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
Removing the Keyboard
Electrostatic Discharge
Service Considerations
Cables and Connectors
Preparing the Computer for Disassembly
Battery Pack Palmrest
Cover with Touch Pad
Keyboard Heatspreader Modem Processor Status Panel Interface
Board Hard Drives Battery
Charger Board CD Drive
To remove the keyboard, complete 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.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20che...O%201600%20SERIES%201650%20and%201655/53.html (1 of 2)6/27/2004 2:53:03 AM
Loading...
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use