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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1230 and 1232

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Maintenance & Service Guide

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

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 to download a ZIP file containing the complete Maintenance & Service Guide for this product.

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 us.

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

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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1230 and 1232

Compaq Home

Showroom

Service

Worldwide

Compaq.com

Revised: 22 October 1998

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United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

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.

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 1200 Series Portable Computers

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First Edition (August 1998) Compaq Computer Corporation

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United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

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 1200 Series Portable Computers.

Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1200 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

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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 1200 Series Portable Computer documentation set

● Introducing Windows 95 Guide

● Service Training Guides

● Compaq Service Advisories and Bulletins

● Compaq QuickFind

● Compaq Service Quick Reference Guide

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United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

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

Power Management for Windows 98

Compaq Presario 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, AMD-K6 or Pentium-

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based portable computer allows full desktop functionality.

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United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

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 1200 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.

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NOTE:

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

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United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

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 1200 Series Portable Computers.

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United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

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

Heatspreader Keyboard Processor

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

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Hard Drives 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

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United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Specifications

This chapter covers the following specifications of Compaq Presario 1200 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

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Dimensions

Height Depth Width

1.97 in

12.20 in

10.08 in

4.95 cm

31.00 cm

25.40 cm

Weight

Model 1234 Model 1235 Model 1236 Model 1237 Model 1238 Model 1240 Model 1242 Model 1250 Model 1252

7.326 lb

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 1200

Series Portable Computers operate well within this range of temperatures.

System Interrupts

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Hardware IRQ System Function

IRQ0 Timer Interrupt IRQ1 Standard 101/102-Key or Microsoft Natural Keyboard IRQ2 Programmable interrupt controller IRQ3 Compaq Presario 56K-DF IRQ4 Communications Port (COM1) IRQ5 ES1869 Plug and Play AudioDrive 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

Hardware DMA System Function

ES1869 Plug and Play AudioDrive

Standard Floppy Disk Controller

(free)

Direct memory access controller

(free)

System I/O Address

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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

x01F0 - x01F7 Primary IDE controller (dual fifo) x0220 - x022F ES1869 Plug and Play AudioDrive x02F8 - x02FF Compaq Presario 56K-DF x0330 - x0331 ES1869 Plug and Play AudioDrive x0370 - x0371 Motherboard resources x0376 - x0376 Opti Viper Max Dual PCI IDE Controller x0376 - x0376 Secondary IDE controller (dual fifo) x0378 - x037F Printer Port (LPT1) x0388 - x038B ES1869 Plug and Play AudioDrive x03B0 - x03BB NeoMagic MagicGraph 128XD x03C0 - x03DF NeoMagic MagicGraph 128XD x03F0 - x03F5 Standard Floppy Disk Controller x03F6 - x03F6 Opti Viper Max Dual PCI IDE Controller x03F6 - x03F6 Primary IDE controller (dual fifo) x03F7 - x03F7 Standard Floppy Disk Controller x03F8 - x03FF Communications Port (COM1) x040B - x040B Motherboard resources x0480 - x048F Motherboard resources x04D6 - x04D6 Motherboard resources

System Memory Catalog

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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 (Information not available)

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

Dimensions

Height Width

Information not available

Display Dimensions

Width Height Depth

Information not available

Weight

Information not available

Contrast Ratio

Information not available

Brightness

Information not available

Total Power Consumption

Information not available

12.1" (Diagonal) HPA Display U.S. Metric

Dimensions Height Width

Information not available

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Display Dimensions Width Height Depth

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

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

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)

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Hard Drives

3.2-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

Hard Drives

5.0-GB 6.4-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

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Data Buffer Capacity

Information not available

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

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United States

Maintenance & Service Guide

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

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 1200 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

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Connector Pin Signal

Carrier Detect

Receive Data

Transmit Data

Data Terminal Ready

Signal Ground

Data Set Ready

Ready to Send

Clear to Send

Ring Indicator

Keyboard/Mouse

Connector Pin Signal

Data 1

Data 2

Ground

+5 V

Clock 1

Clock 2

External VGA Monitor

Connector Pin Signal

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Red Analog

Green Analog

Blue Analog

Not connected

Ground

Ground Analog

Not connected

Ground

Monitor Detect

DDC2B Data

Horizontal Sync

Vertical Sync

DDC2B Clock

Universal Serial Bus

Connector Pin Signal

+5V Data Data + Ground

Modem

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Connector Pin Signal

Unused

Tip

Ring

Unused

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United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

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:

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

● Customize the timeout value to work more efficiently with the applications. The amount of battery

life depends on the values selected.

Maximizing the Energy Stored

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

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

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

constant trickle charge.

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

Conditioning a Battery Pack

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

To condition a battery pack, complete the following steps:

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

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

3. Your battery is re- conditioned.

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

The table below shows the approximate battery pack charge times.

Approximate Battery Charge Time

Computer On Line Off Line

NiMH Battery Pack 4.0 hours premature termination 2:00 hrs

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

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Disposal of a Used Battery Pack

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

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

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Frequently Asked Questions

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