Compaq XL240 User manual

Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES 1
Welcome to the Maintenance & Service Guide (MSG)
Welcome to the Maintenance and Service Guide (MSG) for Compaq Presario 1400 Series Portable
Notebooks. This online guide is designed to serve the needs of technicians whose job is to repair
Compaq products.
For copyright and trademark information, refer to the Notice section of this MSG. To locate the unit’s
serial number, to see symbol conventions, or to view technician’s notes, see the Preface. This MSG is
updated online as needed.
For comments or questions about the contents of this MSG, contact Compaq. The term Notebook as
referred to throughout this MSG is synonymous with the term Computer.
To report a technical problem, contact the Regional Support Center or IM Help Center.
For help with navigating through this guide, refer to Using this Guide.
Product
Description
Before You
Begin Specifications
Pin
Assignments
Battery & Power
Management Troubleshooting
Removal
Sequence
Parts
Catalog MSG Index

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES 2
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Using this Guide
To effectively navigate through this guide, refer to the list of bookmarks at the left of the screen.
These bookmarks quickly and easily provide a thorough index of the entire document. These
bookmarks remain in full view throughout the Maintenance and Service Guide (MSG).
Viewing a Chapter
Click one of the bookmarks or one of the color-coded bubbles on the Welcome page to view a
chapter in this MSG.
Expanding & Hiding Topics
Click the +to expand or show the contents of a section, or click the –to hide the contents.
Opening another Chapter
Return to the Welcome page by clicking the bookmark, 1400 Series Maintenance and Service
Guide, and then select another bookmark or color-coded bubble for a different chapter.
Printing the MSG
For portable (paper) copies of this MSG, print single pages, multiple pages, or the entire guide. In
Acrobat Reader for printing options, click File, then Print.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES BEFORE YOU BEGIN 1
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Before You Begin
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.
©2000 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
Compaq, Presario 1400 Series, Registered U. S. Patent and Trademark Office.
Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation. Windows 98
and Windows 2000 are trademarks 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 1400 Series Portable Notebook
First Edition (May 2000)
Compaq Computer Corporation

2 BEFORE YOU BEGIN PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Preface
The Maintenance and Service Guide is a troubleshooting guide that can be used as a reference when
servicing the Compaq Presario 1400 Series Portable Notebooks.
Compaq Computer Corporation reserves the right to make changes to Compaq Presario 1400 Series
Portable Notebooks without notice.
Symbols
The following words and symbols alert you to special messages throughout this guide.
ÅWARNING: Text set off in this manner indicates that failure to follow the
directions in the Warning could result in bodily harm or loss of life.
Ä
ÄÄ
ÄCAUTION: Text set off in this manner indicates that failure to follow the directions
in the Caution could result in damage to equipment or loss of data.
Important: Text set off in this manner presents clarifying information or extra or
specific instructions.
Note: Text set off in this manner presents commentary or interesting points of
information.
Technician Notes
ÅWARNING: 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 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 otherwise valid warranty.
Serial Number
When requesting information or ordering spare parts, Compaq will need the Notebook’s serial
number. The Serial Number is located on the underside of the Notebook.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES BEFORE YOU BEGIN 3
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Locating Additional Information
The following documentation is available to support this product:
•Compaq Presario 1400 Series Portable Notebook documentation set
•Introducing Windows 98 Guide
•Introducing Windows 2000 Guide
•Servicing Training Guides
•Compaq Service Advisories and Bulletins

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES PRODUCT DESCRIPTION 1
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Product Description
Models and Features
XL240-246
*Modem Legend
cContinued
Compaq Presario 1400 Series Portable Notebook Models
XL240 XL241 XL242
Display 13.0-inch HPA 13.0-inch HPA 13.0-inch HPA
Processor Celeron 600 (128)
FCPGA
Celeron 600 (128)
FCPGA
Celeron 566 (128)
FCPGA
Hard Drive 6.0 GB 6.0 GB 6.0 GB
CD or DVD Drive 24X CD 24X CD 24X CD
Diskette Drive 3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
Modem 56K Mini PCI/NIC
combo d/f 1*
56K Mini PCI d/f 1* 56K Mini PCI d/f 2*
Battery 3.2 Li-ion 3.2 Li-ion 3.2 Li-ion
System Memory 64 MB PC100 64 MB PC100 64 MB PC100
TV-Out Yes Yes Yes
XL244 XL245 XL246
Display 13.0-inch HPA 13.3-inch TFT 12.1-inch TFT
Processor Celeron 566 (128)
FCPGA
Celeron 566 (128)
FCPGA
Celeron 566 (128)
FCPGA
Hard Drive 6.0 GB 6.0 GB 5.0 GB
CD or DVD Drive 24X CD DVD DVD
Diskette Drive 3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
Modem 56K Mini PCI/NIC
combo d/f 1*
56K Mini PCI/NIC
combo d/f 1*
56K Mini PCI d/f 2*
Battery 4.5 NiMH 3.2 Li-ion 3.2 Li-ion
System Memory 64 MB PC100 64 MB PC100 64 MB PC100
TV-Out No Yes Yes

2 PRODUCT DESCRIPTION PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
XL247-250
Continued
Compaq Presario 1400 Series Portable Notebook Models
XL247 XL250
Display 13.3-inch TFT 13.3-inch TFT
Processor Celeron 600 (128)
FCPGA
Celeron 600 (128)
FCPGA
Hard Drive 6.0 GB 6.0 GB
CD or DVD Drive CD-RW DVD
Diskette Drive 3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
Modem 56K Mini PCI d/f 2* 56K Mini PCI d/f 2*
Battery 3.2 Li-ion 3.2 Li-ion
System Memory 64 MB PC100 64 MB PC100
TV-Out Yes Yes
*Modem Legend
1) 56K Mini PCI d/f 1 = Bear/Grizzly Modem/NIC Combo = NA, CKK, LA
2) 56K Mini PCI d/f 2 = Seminole = EMEA/APD

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES PRODUCT DESCRIPTION 3
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
XL340-345
*Modem Legend
CContinued
Compaq Presario 1400 Series Portable Notebook Models
XL340 XL341 XL342
Display 12.1-inch TFT 13.0-inch HPA 13.3-inch TFT
Processor Celeron 600 (128)
FCPGA
Celeron 633 (128)
FCPGA
Celeron 700 (256)
FCPGA
Hard Drive 6.0 GB 6.0 GB 10.0 GB
CD or DVD Drive 8X DVD 24X CD 24X CD
Diskette Drive 3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
Modem 56K Mini PCI d/f 4*
iNIC
56K Mini PCI d/f 4*
iNIC
56K Mini PCI d/f 5*
iNIC
Battery 3.2 Li-ion 3.2 Li-ion 3.2 Li-ion
System Memory 64 MB PC100 64 MB PC100 64 MB PC100
TV-Out No No No
XL343 XL344 XL345
Display 13.3-inch TFT 13.3-inch TFT 13.3-inch TFT
Processor Celeron 600 (128)
FCPGA
Celeron 600 (128)
FCPGA
Celeron 650 (256)
FCPGA
Hard Drive 10.0 GB 10.0 GB 6.0 GB
CD or DVD Drive 24X CD 8X DVD 8X DVD
Diskette Drive 3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
Modem 56K Mini PCI d/f 1* 56K Mini PCI d/f 1* 56K Mini PCI d/f 4*
iNIC
Battery 3.2 Li-ion 3.2 Li-ion 3.2 Li-ion
System Memory 64 MB PC100 64 MB PC100 64 MB PC100
TV-Out No No No

4 PRODUCT DESCRIPTION PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
XL346-356
Compaq Presario 1400 Series Portable Notebook Models
XL346 XL350 XL352
Display 13.3-inch TFT 13.3-inch TFT 12.1-inch TFT
Processor Celeron 600 (128)
FCPGA
Celeron 700 (256)
FCPGA
Celeron 600 (128)
FCPGA
Hard Drive 10.0 GB 15.0 GB 6.0 GB
CD or DVD Drive 8X DVD 24X CD 8X DVD
Diskette Drive 3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
Modem 56K Mini PCI d/f 1* 56K Mini PCI d/f 5*
iNIC
56K Mini PCI d/f 2*
Battery 3.2 Li-ion 3.2 Li-ion 3.2 Li-ion
System Memory 64 MB PC100 128 MB PC100 64 MB PC100
TV-Out No No No
XL355 XL356
Display 13.3-inch TFT 13.3-inch TFT
Processor Celeron 667 (128)
FCPGA
Celeron 667 (128)
FCPGA
Hard Drive 6.0 GB 6.0 GB
CD or DVD Drive 8X DVD CD-RW
Diskette Drive 3.5-inch Floppy
Drive USB
3.5-inch Floppy
Drive USB
Modem 56K Mini PCI d/f 2* 56K Mini PCI d/f 2*
Battery 3.2 Li-ion 3.2 Li-ion
System Memory 64 MB PC100 64 MB PC100
TV-Out No No
*Modem and NIC Card Legend
1. Mini PCI v.90 d/f- 1 = Bear = US, CA, CKK, APD, LA
2. Mini PCI v.90 d/f- 2 = Seminole 1 = CTR21, EMEA
3. Mini PCI v.90 d/f- 3 = Seminole 2 = AUS/NZ
Modem/NIC Combo
4. Mini PCI v.90 d/f- 1 = Grizzly = US, CA, CKK, LA
5. Mini PCI v.90 d/f- 1 = Yogi = CTR21, EMEA, APD

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES PRODUCT DESCRIPTION 5
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Front of Unit
No. Description
1Display
2Series Number
3Keyboard
4TouchPad
5Speaker Ports
6Left TouchPad Button
7Four-Way Internet Scroll
Buttons
8Right TouchPad Button

6 PRODUCT DESCRIPTION PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Internet Zone Buttons and Lights
No. Description
1Instant Internet Access
Button
2Instant E-mail
3Retail Central
4Lid Switch
5Power Button

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES PRODUCT DESCRIPTION 7
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Front Bezel Components
No. Description No. Description
1Power Light/Sleep Mode Light 8Previous Track Button
2Battery Charge Light/Low
Battery Light
9Microphone Connector
3AC Adapter Light -Play/Pause Button
4Num Lock Light qHeadphone Connector
5Caps Lock Light wNext Track Button
6MP3 Digital Audio Button eVolume Up Button
7Volume Down Button

8 PRODUCT DESCRIPTION PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Right Side Components
No. Description
1CD or DVD Drive
2CD or DVD Eject Button
3CD or DVD Manual Eject Hole

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES PRODUCT DESCRIPTION 9
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Left Side Components
No. Description
1PC Card Slot (Type I or II)
2PC Card Eject Button

10 PRODUCT DESCRIPTION PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Underneath the Unit
No. Description
1Battery Cover
2Serial Number
3Modem Compartment
4Battery Release Switch
5Memory Compartment

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES PRODUCT DESCRIPTION 11
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Rear Connectors
No. Description
1Fan Vent
2Security Slot
3Modem Connector
4Ethernet Port
5S-Video Out
6External Monitor (VGA) Port
7USB Ports
8AC Adapter Connector

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES SPECIFICATIONS 1
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Specifications
Physical and Environmental
This section covers the following specifications of Compaq Presario 1400 Series Portable Notebooks.
Notebook Specifications
U.S. Metric
Dimensions
Height
Depth
Width
1.67 in
13.11 in
11.02 in
42.40 cm
33.30 cm
27.99 cm
Weight
with 13.0 inch Display
with 13.3 inch Display
6.40 lb
6.22 lb
2.90 kg
2.82 kg
Stand-Alone (Battery Pack)
Li-Ion Pack
Power Requirements
Nominal Operating
Maximum Average
NiMH Pack
Power Requirements
Nominal Operating
Maximum Average
W @ 14.8 V
W @ 14.8 V
W @ 14.8 V
W @ 9.6 V
W @ 9.6 V
W @ 9.6 V
AC Power Requirements (Input)
Operating Voltage
Operating Current
Operating Frequency
Maximum Transient
Output
100-240 V
60 W
50/60 Hz ~1.5A
Meets IEC801-4 & IEC801-5
1 kV for 50 ns
19 V, 3.16 A
Temperature
Operating
Non Operating
50° to 95° F
-4° to 140° F
10° to 35° C
-20° to 60° C

2 SPECIFICATIONS PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Relative Humidity (non-condensing)
Operating
Non Operating
(tw = 38.7 degree C max)
10% to 90%
5% to 95%
Altitude
Operating
Non-Operating
0 to 10,000 ft
0 to 30,000 ft
Shock
Operating
Non-Operating
10 G, 11 ms, half sine
240 G, 2 ms, half sine
Vibration
Operating
Non-Operating
0.5 G
1.5 G
Note: Applicable product safety standards specify thermal limits for plastic surfaces.
Compaq Presario 1400 Series Portable Notebooks operate well within this range of
temperatures.
Notebook Specifications
U.S. Metric

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES SPECIFICATIONS 3
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
System Interrupts
System Interrupts
Hardware IRQ System Function Hardware IRQ System Function
IRQ0 System Timer IRQ10 SCI IRQ used by
ACPI Bus
IRQ1 Standard 101/102-
key or Microsoft
Natural Keyboard
IRQ11 ACPI IRQ Holder for
PCI IRQ Steering
IRQ2 Programmable
Interrupt Controller
IRQ11 VIA Tech 3038 PCI to
USB Universal Host
Controller
IRQ4 Communications Port
(COM1)
IRQ11 ACPI IRQ Holder for
PCI IRQ Steering
IRQ6 Standard Floppy Disk
Controller
IRQ11 Compaq PCI Modem
Enumerator
IRQ7 Printer Port (LPT1) IRQ12 Synaptics PS/2
TouchPad
IRQ8 System CMOS/Real
Time Clock
IRQ13 Numeric Data
Processor
IRQ9 VIA PCI Audio
Controller
IRQ14 VIA Bus Master PCI
IDE Controller
IRQ9 Texas Instruments
PCI-1211 CardBus
Controller
IRQ14 Primary IDE
Controller (Dual
FIFO)
IRQ9 Trident CyberBlade i1
AGP (51)
IRQ15 VIA Bus Master PCI
IDE Controller
IRQ15 Secondary IDE
Controller (Dual
FIFO)

4 SPECIFICATIONS PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES
Presario 1400 Series
Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
System DMA
System I/O Addresses
System DMA
Hardware DMA System Function
DMA 2 Standard Floppy Disk Controller
DMA 4 Direct Memory Access Controller
System I/O Addresses
I/O Address (Hex) System Function (Shipping Configuration)
0000h-000Fh Direct Memory Access Controller
0020h-0021h Programmable Interrupt Controller
0040h-0043h System Timer
0060h-0060h Standard 101/102-Key or Microsoft Natural Keyboard
0061h-0061h System Speaker
0062h-0062h ACPI Embedded Controller
0064h-0064h Standard 101/102-Key or Microsoft Natural Keyboard
0066h-0066h ACPI Embedded Controller
0070h-0075h System CMOS/Real Time Clock
0081h-008Fh Direct Memory Access Controller
00A0h-00A1h Programmable Interrupt Controller
00C0h-00DFh Direct Memory Access Controller
00F0h-00FFh Numeric Data Processor
0170h-0177h VIA Bus Master PCI IDE Controller
0170h-0177h Secondary IDE Controller (dual FIFO)
01F0h-01F7h VIA Bus Master PCI IDE Controller
01F0h-01F7h Primary IDE Controller (dual FIFO)
0200h-0207h Gameport Joystick
02F8h-02FFh Compaq 56K V.90 HSF Mini PCI Modem
0376h-0376h Secondary IDE Controller (dual FIFO)
0376h-0376h VIA Bus Master PCI IDE Controller