Compaq Presario 1675, Presario 1670, Presario 1270 Service Manual

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Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Models and

Features

Controls and

Lights

Front Bezel

Lights

Front Bezel

Buttons

Left Side

Components

Right Side

Components

Bottom of

Unit

Rear

Connectors

Power Management for Windows 98

Click here to download this Maintenance and Service Guide (MSG) to your hard drive.

Welcome to the Maintenance & Service Guide (MSG). This online guide is designed to serve the needs of those whose job it is to repair Compaq products. Many of the components of the hardcopy MSG are contained in this online guide. The Notice,

contains the copyright and trademark information. The Preface shows symbol conventions, Technician Notes and Serial Number locations on the unit.

This MSG will be periodically maintained and updated online as needed.

For content comments or questions, contact the Editor.

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

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Notice

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

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

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

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

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

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

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

Maintenance and Service Guide

Compaq Presario Series Portable Computer

First Edition (March 1999)

Compaq Computer Corporation

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Preface

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

Compaq Computer Corporation reserves the right to make changes to the Compaq Presario Series Portable Computers without notice.

Symbols

The following words and symbols mark special messages throughout this guide.

WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm or loss of life.

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

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

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

Technician Notes

WARNING: Only authorized technicians trained by Compaq should repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies, the user should not attempt to make repairs at the component level or to make modifications to any printed circuit board. Improper repairs can create a safety hazard. Any indications of component replacement or printed circuit board modifications may void any warranty

Serial Number

When requesting information or ordering spare parts, the computer serial number should be provided to Compaq. The serial number is located on the bottom of the computer.

Locating Additional Information

The following documentation is available to support this product:

●Compaq Presario Series Portable Computer documentation set

●Introducing Windows 98 Guide

●Service Training Guides

●Compaq Service Advisories and Bulletins

●Compaq QuickFind

●Compaq Service Quick Reference Guide

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Product Description

Models and

Features

Controls and

Lights

Front Bezel

Lights

Front Bezel

Buttons

Left Side

Components

Right Side

Components

Bottom of

Unit

Rear

Connectors

Power Management for Windows 98

Compaq

Presario

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 full-function, AMD-K6 - based portable computer allows full desktop functionality.

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

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 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.

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

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Illustrated Parts Catalog

System Unit

Boards

Display

Assembly

Mass Storage

Devices

Miscellaneous

Cable Kit

Miscellaneous

Hardware Kit

Miscellaneous

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 Series Portable Computers.

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

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

Heatspreader

Processor

Hard Drive

DVD or

CD Drive

Battery

Charger Board

Modem

Display

Panel

Assembly

Upper CPU

Cover

Speaker

Assembly

Diskette Drive

Fan Assembly

System Board

Dip Switch

Settings

Memory

Module

Report the computer serial number to Compaq when requesting information or ordering spare parts.

Compaq Presario 1675, Presario 1670, Presario 1270 Service Manual

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Specifications

This chapter covers the following specifications of Compaq Presario 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

●DVD or CD drive

●Battery pack

Physical and Environmental

Computer Specifications

	U.S.	Metric
Dimensions	1.97 in	5.0 cm
Height	1.97 in	5.0 cm
Depth	12.32 in	31.3 cm
Width	10.12 in	25.7 cm
Weight	7.35 lbs	3.34 kg
Model 1270	7.35 lbs	3.34 kg
Model 1670	7.35 lbs	3.34 kg
Model 1675	7.99 lbs	3.63 kg
Stand-Alone (Battery Pack) Power	Li Ion
Requirements
Nominal Operating Voltage	W @ 14.8 VDC
Maximum Operating Power	W @ 56.5 W
Peak Operating Power	W @ 58.5 W
AC Power Requirements	(Information not available)
Operating Voltage
Operating Current
Operating Frequency
Maximum Transient
Temperature
Operating	41° to 95 °F	5° to 35 °C
Nonoperating	-4° to 140 °F	-20° to 60 °C
Relative Humidity (Non-condensing)
Operating	10 to 90%	35°C to 90%
Nonoperating (tw = 38.7°C max)	5 to 95%	60°C to 95%
Altitude
Operating	0 to 10,000 ft	0 to 3.15 km
Nonoperating	0 to 30,000 ft	0 to 10.14 km
Shock
Operating	10 G, 11 ms, half sine
Non operating	240 G, 2 ms, half sine
Vibration
Operating	0.55 G, 0.25 Oct/Min sweep rate
Nonoperating	1.5 G, 0.25 Oct/Min sweep rate

NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. Compaq Presario Series Portable Computers operate well within this range of temperatures.

System Interrupts

	System Interrupts
Hardware IRQ	System Function
IRQ0	Timer Interrupt
IRQ1	Standard 101/102-Key or Microsoft Natural Keyboard
IRQ2	Programmable interrupt controller
IRQ3	Compaq Prosignia 56K-DF
IRQ4	Communications Port (COM1)
IRQ5	ES1869 Plug and Play Audio Drive
IRQ6	Standard Floppy Disk Controller
IRQ7	Printer Port (LPT1)
IRQ8	System CMOS / real-time clock
IRQ9	(free)
IRQ10	OPTi 82C861 PCI to USB Open Host Controller
IRQ10	IRQ Holder for PCI Steering
IRQ11	IRQ Holder for PCI Steering
IRQ11	IRQ Holder for PCI Steering
IRQ11	NeoMagic MagicGraph 128XD
IRQ11	Texas Instruments PCI-1131 CardBus Controller
IRQ11	Texas Instruments PCI-1131 CardBus Controller
IRQ12	Synaptics PS/2 TouchPad
IRQ13	Numeric data processor
IRQ14	Primary IDE controller (dual fifo)
IRQ14	Opti Viper Max Dual PCI IDE Controller
IRQ15	Secondary IDE controller (dual fifo)
IRQ15	Opti Viper Max Dual PCI IDE Controller

System DMA

	System DMA
Hardware DMA	System Function
0	ES1869 Plug and Play AudioDrive
1	ES1869 Plug and Play AudioDrive
2	Standard Floppy Disk Controller
3	(free)
4	Direct memory access controller
5	(free)
6	(free)
7	(free)

System I/O Address

		System I/O Address
I/O Address (Hex)		System Function (Shipping Configuration)
x0000	- x000F	Direct memory access controller
x0020	- x0021	Programmable interrupt controller
x0022	- x0024	Motherboard resources
x0040	- x0043	System timer
x0060	- x0060	Standard 101/102-Key or Microsoft Natural Keyboard
x0061	- x0061	System speaker
x0064	- x0064	Standard 101/102-Key or Microsoft Natural Keyboard
x0070	- x0071	System CMOS/real time clock
x0080	- x0080	Motherboard resources
x0081	- x008F	Direct memory access controller
x0092	- x0092	Motherboard resources
x00A0	- x00A1	Programmable interrupt controller
x00C0	- x00DF	Direct memory access controller
x00EC - x00EF		Motherboard resources
x00F0 - x00FF		Numeric data processor
x0170	- x0177	Opti Viper Max Dual PCI IDE Controller
x0170	- x0177	Secondary IDE controller (dual fifo)
x01F0	- x01F7	Opti Viper Max Dual PCI IDE Controller

System Memory Catalog

Memory Address

System Function

x00000000 - x0009FFFF

System board extension for PnP BIOS

x000A0000 - x000AFFFF

NeoMagic MagicGraph 128XD

x000B0000 - x000BFFFF

NeoMagic MagicGraph 128XD

x000C0000 - x000CBFFF

NeoMagic MagicGraph 128XD

x000E0000 - x000FFFFF

System board extension for PnP BIOS

x00100000 - x01FFFFFF

System board extension for PnP BIOS

x03000000 - x03000FFF

Texas Instruments PCI-1131 CardBus Controller

x03001000 - x03001FFF

Texas Instruments PCI-1131 CardBus Controller

xFD000000 - xFDFFFFFF

NeoMagic MagicGraph 128XD

xFEA00000 - xFEBFFFFF

NeoMagic MagicGraph 128XD

xFECFF000 - xFECFFFFF

OPTi 82C861 PCI to USB Open Host Controller

xFED00000 - xFEDFFFFF

NeoMagic MagicGraph 128XD

xFFFC0000 - xFFFFFFFF

Motherboard resources

Display

12.1" (Diagonal) TFT Display with LVDS
	U.S.	Metric
Dimensions	7.83"	19.9 cm
Height	7.83"	19.9 cm
Width	10.8"	25.7 cm
Diagonal Size	12.1"	30.7 cm
Mounting	Internal
Number of Colors	16 M
Contrast Ratio	Typical 150:1
Brightness	Over 120 cd/m~3
Pixel Resolution	0.30 x 0.30 mm
Pitch	0.30 x 0.30 mm
Format	800 x 600
Configuration	RGB Stripe
Backlight	Edge Light
Character Display	80 x 25, 80 x 50
Total Power Consumption	5.4 W (max)
	(Information not available)
13.3" (Diagonal) TFT Display with LVDS
	U.S.	Metric
Dimensions
Height
Width

Diagonal Size

Mounting

Number of Colors

Contrast Ratio

Brightness

Pixel Resolution

Pitch

Format

Configuration

Backlight

Character Display

Total Power Consumption

	14.1" (Diagonal) TFT Display with LVDS
	U.S.	Metric
Dimensions	8.43"	21.42 cm
Height	8.43"	21.42 cm
Width	11.2"	28.56 cm
Diagonal Size	14.1"	35.8 cm
Mounting	Internal
Number of Colors	64 K
Contrast Ratio	Typical 150:1
Brightness	Over 120 cd/m~3
Pixel Resolution	0.279 x 0.279 mm
Pitch	0.279 x 0.279 mm
Format	1024 x 768
Configuration	RGB Stripe
Backlight	Edge Light
Character Display	80 x 25
Total Power Consumption	6.6 W (max)

Memory Expansion

	Memory Expansion for 350-MHz Processor
System Memory	Expansion Board Memory	Total Memory
32-MB	32-MB	64-MB
32-MB	64-MB	96-MB
32-MB	128-MB	160-MB

	Memory Expansion for 380-MHz Processor
System Memory	Expansion Board Memory	Total Memory
64-MB	32-MB	96-MB
64-MB	64-MB	128-MB
64-MB	128-MB	192-MB

Diskette Drive

	Diskette Drive
Diskette Size	3.5 in
Light	None
Height	.5" / 1.27 cm
Bytes per Sector:	512
Sectors per Track	18 (1.44-MB) / 15 (1.2-MB)
High Density	18 (1.44-MB) / 15 (1.2-MB)
Low Density	9
Tracks per Side	80 (1.44-MB) / 80 (1.2-MB)
High Density	80 (1.44-MB) / 80 (1.2-MB)
Low Density	80
Access Times
Track-to-Track (high/low)	3 ms/6 ms
Average (ms)	94 ms/174 ms
Setting Time (ms)	15 ms
Latency Average	100
Number of Read/Write Heads	2

Hard Drive

	Hard Drives
	6.4-GB	4.3-GB
Capacity Per Drive	6.4-GB	4.3-GB
Drive Type	65	65
Physical Configuration	8647	8647
Cylinders	8647	8647
Heads	6	6
Sectors per track	240-250	240-250
Bytes per sector	512	512
Logical Configuration	13424	7944
Cylinders	13424	7944
Heads	15	15
Sectors per track	63	63
Bytes per sector	512	512
Seek Times	2.5 ms	2.5 ms
(Typical, Including settling in ms)	13 ms	13 ms (read)
Track to Track	13 ms	13 ms (read)
Average Maximum	23 ms	23 ms
Rotational Speed	4200 rpm	4200 rpm
Transfer Rate	60.8 to 107.2 Mb/s	60.8 to 107.2 Mb/s
Media	60.8 to 107.2 Mb/s	60.8 to 107.2 Mb/s
At interface	33.3 MB/s	33.3 MB/s
Sector Interleave	1:1	1:1
Buffer Size	512 KB	512 KB

DVD or CD Drive

	CD Drive
	24× CD Drive
Applicable Disk	CD-DA, CD-ROM, CD-ROM XA, CD-1, Photo
	CD (multisession), Video CD, CD-R, CD-
	Extra (CD+), CD-G, CD-RW
Center Hole Diameter	.6" / 15 mm
Disc Diameter	12 cm, 8 cm
Disc Thickness	1.2 mm
Track Pitch	1.6 um
Access Time	110 ms
(typical, including setting)	110 ms
Audio Output Level
Line out	+/- 0.27 Vrms
Headphone	none
	none
Cache Buffer	128 KB
Data Transfer Rate	3600 KB/s
(typical, including setting)	150 KB/s
	16.66 MB/sec
Startup Time	< 8 sec
Stop time	< 4 sec

	DVD Drive
	DVD Drive
Applicable Disk	DVD-ROM, CD-ROM, CD-XA, CD-I, Photo CD,
	Multisession, Audio, CD-R, CD-RW
Center Hole Diameter	6" / 15mm
Access Time	< 100 ms (CD)
(typical, including setting)	< 150 ms (DVD)
Disc Thickness	4.7", 3.15" / 12cm, 8cm
Track Pitch	0.74um (DVD)
Laser	.05" / 1.2cm
Beam Divergence	.05" / 1.2cm
Audio Output Level	1.0 volts RMS
Line out	1.0 volts RMS
Headphone	0 - 0.6 volts RMS
Cache Buffer	512 KB/s (CD)
Data Transfer Rate	12,000 - 3,000 KB/s (CD)
(typical, including setting)	2705 KB/s (DVD)
Startup Time	< 5 sec
Stop time	< 3 sec

Battery Pack

Dimensions

Height

Length

Width

Weight

Battery Pack Operating Time

Energy

Voltage

Amp-hour capacity Watt-hour capacity

Environmental Requirements

Operating Temperature Non-operating Temperature

Compliance

Data Compression

Fax Modulation

Command Set

Cable

Battery Pack
Lithium Ion (Li ion) *
US	Metric

	.81 in	2.05 cm
	3.05 in	7.75 cm
	5.69 in	7.75 cm
	5.69 in	14.45 cm
		14.45 cm
	0.85 Ib	.39 kg
	3:00 hr
	14.8 V
	3.0 Ah
	44.4 Wh
	32° F to 113 F	0° to 45° C
	-4° F to 140 ° F	-20° to 60° C
		-20° to 60° C

Modem

ITU v.90~6 standard

Full ITU-T V.34 compliance

Full compliance with: V.21, V.22, V.22bis, V.23, V.32, V.32bis, Bell 103, Bell 212A

V.42bis/MNP 5 V. 17

V. 21 (Group III Compatible)

V.29

V.27Ter

Hayes AT

Class 1 Fax

6 Ft. RJ-11 telephone cable

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Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Connector Pin Assignments

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

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

Parallel Connector

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

* = Active low

	Serial Connector
Connector	Pin	Signal

1Carrier Detect

2Receive Data

3Transmit Data

4Data Terminal Ready

5Signal Ground

6Data Set Ready

7Ready to Send

8Clear to Send

9Ring Indicator

	Keyboard/Mouse
Connector	Pin	Signal

1Data 1

2Data 2

3Ground

4+5 V

5Clock 1

6Clock 2

	External VGA Monitor
Connector	Pin	Signal

1Red Analog

2Green Analog

3Blue Analog

4Not connected

5Ground

6Ground Analog

7Ground Analog

8Ground Analog

9Not connected

10Ground

11Monitor Detect

12DDC2B Data

13Horizontal Sync

14Vertical Sync

15DDC2B Clock

	Universal Serial Bus
Connector		Pin	Signal
		1	+5V
		1	+5V
		2	Data -
Universal Serial Bus Connector		2	Data +
			Data +
		3	Ground

	Modem
Connector	Pin	Signal

1Unused

2Unused

Modem Connector

3Tip

4Ring

5Unused

6Unused

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

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:

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

●Customize the timeout value to work more efficiently with the applications. The amount of battery life depends on the values selected.

Maximizing the Energy Stored

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

●Condition the battery pack at least every 30 days to improve overall battery performance.

●Keep a battery pack in the computer when using it with AC power to supply the battery pack with a constant trickle charge.

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

Conditioning a Battery Pack

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

To condition a battery pack, complete the following steps:

1.Plug in the AC adapter and allow the battery to charge until the LED light on the display stops blinking. Your battery gauge may read 100 percent for a period of time before LED light on the display stops blinking. Do not unplug the AC adapter until the arrow disappears.

2.Unplug the AC adapter and allow the battery to drain until the computer reaches hibernation and turns itself off. Do not plug in the AC adapter during this process or you will need to restart with Step No. 1.

You may use the computer while the battery is draining.

3.Your battery is reconditioned.

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

The table below shows the approximate battery pack charge times.

	Approximate Battery Charge Time
Computer	On Line	Off Line
NiMH Battery Pack	4.0 hours premature termination	2:00 hrs
Li ion Battery Pack	4.5 hours premature termination	2:50 hrs

Disposal of a Used Battery Pack

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

CAUTION: Never attempt to open or service a battery pack. Opening a battery pack not only damages the pack and makes it unusable, but also expose potentially harmful battery components.

Top of Page

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Models and Features

Models and

Features

Controls and

Lights

Front Bezel

Lights

Front Bezel

Buttons

Left Side

Components

Right Side

Components

Bottom of

Unit

Rear

Connectors

Power Management for Windows 98

Compaq Presario Series Portable Computer Models

	Model 1675	Model 1670
Display	14. 1" TFT	13.3" TFT
Processor	AMD-K6 380-Mhz MMX	AMD-K6 350-Mhz MMX
Cache	1-MB	1-MB
Hard Drive	6.4-GB	4.3-GB
DVD or CD Drive	2x DVD	24x CD
Modem	56.0 Kbps Data/Fax with PCI	56.0 Kbps Data/Fax with PCI
System Memory	64-MB	64-MB

	Model 1270
Display	12. 1" TFT
Processor	AMD-K6 350-Mhz MMX
Cache	512K
Hard Drive	4.3-GB
CD Drive	24x CD
Modem	56.0 Kbps Data/Fax with PCI
System Memory	32-MB

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Controls and Lights

Models and

Features

Controls and

Lights

Front Bezel

Lights

Front Bezel

Buttons

Left Side

Components

Right Side

Components

Bottom of

Unit

Rear

Connectors

Power Management for Windows 98

1. Display

2. Power (On/Off) Button

3. Keyboard 4. Touch Pad

5.Touch Pad Button (Left)

6.Headphone Jack

7.Microphone Jack

8.Touch Pad Button (Right)

9.Integrated Speakers and Ports

Maintenance & Service Guide

Presario Series

Models: 1270, 1670, and 1675

Front Bezel Lights

Models and

Features

Controls and

Lights

Front Bezel

Lights

Front Bezel

Buttons

Left Side

Components

Right Side

Components

Bottom of

Unit

Rear

Connectors

Power Management for Windows 98

1. Power Light

2.Battery Charge Light

3.Power Cord Light

4.Num Lock Light

5.Cap Lock Light

6.Scroll Lock Light

Maintenance & Service Guide

Presario Series

Models: 1270, 1670, and 1675

Front Bezel Buttons

Models and

Features

Controls and

Lights

Front Bezel

Lights

Front Bezel

Buttons

Left Side

Components

Right Side

Components

Bottom of

Unit

Rear

Connectors

Power Management for Windows 98

1.Instant Internet Access Button

2.Instant Search Button

3.Volume Down Button

4.Scroll Up/Down Button

5.Volume Up Button

6.Secure E- Commerce Button

(or favorite Web site)

7.Instant E- Mail Button

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Left Side Components

Models and

Features

Controls and

Lights

Front Bezel

Lights

Front Bezel

Buttons

Left Side

Components

Right Side

Components

Bottom of

Unit

Rear

Connectors

Power Management for Windows 98

1. PC Card

Eject Lever

2. PC Card Slot

3.Ethernet Connector Plug

4.Diskette Drive Slot

5.Diskette Eject Button

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Right Side Components

Models and

Features

Controls and

Lights

Front Bezel

Lights

Front Bezel

Buttons

Left Side

Components

Right Side

Components

Bottom of

Unit

Rear

Connectors

Power Management for Windows 98

1.Battery Compartment

2.DVD or CD Drive Manual Eject Hole

3.DVD or CD Drive Eject Button

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Bottom of Unit

Models and

Features

Controls and

Lights

Front Bezel

Lights

Front Bezel

Buttons

Left Side

Components

Right Side

Components

Bottom of

Unit

Rear

Connectors

Power Management for Windows 98

1. Memory

Compartment

Door

2. Stand Feet

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Rear Connectors

Models and

Features

Controls and

Lights

Front Bezel

Lights

Front Bezel

Buttons

Left Side

Components

Right Side

Components

Bottom of

Unit

Rear

Connectors

Power Management for Windows 98

1. AC Adapter

2. Universal

Serial Bus

3. Security Slot

4. Serial Port

5.Port Replicator

6.External Monitor Port

7.Parallel Printer Port

Keyboard/Mouse Port

9. Modem Jack

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

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 or DVD playback (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
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: Monitor: Laptop Display (Maximum resolution according to unit display size)

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 Series Notebook computers have two levels of sleep, Hibernation and Sleep.

Hibernation – by pushing the power button once your computer will perform a save to disk followed by a shut down of the computer into Off mode.

Sleep – is a low power mode, also referred to as Standby mode. While in Sleep mode, your computer will maintain system information and open files. Unsaved information will be lost if you turn off your system prior to system wake-up, or if you lose power while using the AC adapter.

CAUTION: While in Sleep mode, your computer will maintain system information and open files. Unsaved information will be lost if you turn off your system prior to system wake-up, or if you lose power while using the AC adapter.

Hibernation Mode

Hibernation helps conserve battery life and protects your data. Hibernation can be a routine power saving event, or can be the result of a low battery condition. As it enters Hibernation your computer will display a progress screen, as it automatically saves the machine state before it shuts down and turns itself off. Your computer will automatically go into Hibernation, when the battery has little power left, or when the system (operating on battery power) has been in Sleep mode for more than an hour. You can also manually initiate Hibernation by pressing the power button once while the system is active. To restore the computer's previous state, simply press the power button once again. While waking up, the computer will display a progress screen.

The following table shows the conditions and indicators for getting in and out of the various power management modes, Sleep, Hibernation, and Off.

Mode	To Initiate	To End	Indicators
Sleep	Manual keys	Press any key	Flashing green
	combination		Power LED
	- Fn+F4
	Time Out
	Default 15
	minutes. If on
	Battery power
	(system will not
	go to Sleep if
	on AC power)
Hibernate	Manual - Press	Press Power	No Power LED,
	Power Button	Button once	blank screen
	once
	Time Out Default If
	low battery or after
	1 hour of sleep
	(system will not
	Hibernate if on AC
	power)
Off	Perform normal	Press Power	No Power LED,
	Windows	Button once	blank screen
	shutdown via
	the start
	button, or press
	and hold down
	the power
	button for 4
	seconds

Servicing Your Computer – Full Off Mode

If you need to install or replace components in your system, you must turn the computer off completely. Follow the instructions above for properly putting the computer into Off mode, unplug from the outlet, and remove the battery (see

battery section for instruction on removing battery).

Rebooting After a Lockup

Occasionally you may encounter a frozen keyboard or a locked screen. To reboot your computer (as if from a cold start) press and hold down the Power Button for at least four seconds, which will cause a manual shutdown. Then, restart it with a single press of the Power Button. If it still doesn't recover, press the Power Button and hold it for four seconds to shut it down, then, remove the battery or unplug the AC power for at least 30 seconds. Reinsert the battery or reconnect AC power and press the Power Button once to reboot.

Battery Operating Time

Battery operating time is affected by variables, such as the following:

●Power conservation settings

●Hardware configuration

●Software applications

●Installed options

●Display brightness

●Hard drive usage

●Power button

●Changes in operating temperature

●Type and number of installed PC Cards

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

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Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

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.

If the problem only occurs when an external device is connected to the computer, IMPORTANT: 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.

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

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

Configuration incorrect

CMOS reflects that an invalid configuration has been set.

RAM failure

Memory test data error

XX000YZZ RAM failure

Recommended Action

Run Computer Setup.

1.Replace the memory modules.

2.Replace the system board.

1.Replace the memory modules.

2.Replace the system board.

Replace the system board.

XX000YZZ 201-Memory Error

Probable Cause	Recommended Action
	301-Keyboard Error
Probable Cause	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	1.	Run Computer Checkup (TEST).
diskette controller
	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.

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

Clearing the Power-on Password

Clearing the power-on password requires removing all Setup attributes that are programmed in the CMOS. The

RTC battery is located on the system board.

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 Palmrest Cover with Touch Pad.

5. Remove the heatspreader.

6. Remove the keyboard.

7. Remove RTC battery for 30 seconds and replace it .

8. Reassemble the computer.

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

Maintenance & Service Guide

Presario Series

Models : 1270, 1670, and 1675

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 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)

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.

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