Compaq armada 110 schematic
b
Maintenance and Service Guide
Compaq Armada 110™
Document Part Number: 238850-001
April 2001
This guide is a troubleshooting reference used for maintaining
and servicing the notebook. It provides comprehensive
information on identifying computer features, components, and
spare parts, troubleshooting computer problems, and performing
computer disassembly procedures.
© 2001 Compaq Computer Corporation
Compaq, the Compaq logo, Armada, Deskpro Registered in U. S. Patent and
Trademark Office.
Microsoft, MS-DOS, Windows, Windows NT are trademarks of Microsoft
Corporation in the United States and other countries.
All other product names mentioned herein may be trademarks of their respective
companies.
Compaq shall not be liable for technical or editorial errors or omissions
contained herein. The information in this document is provided “as is” without
warranty of any kind and is subject to change without notice. the warranties for
Compaq products are set forth in the express limited warranty statements
accompanying such products. Nothing herein should be construed as
constituting an additional warranty.
Maintenance and Service Guide
First Edition (April 2001)
Document Part Number: 238850-001
Contents
1 Product Description
1.1 Models and Features . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
1.2 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
1.3 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Enabling Power Savings . . . . . . . . . . . . . . . . . . . . . . 1–6
Timeout Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7
Setting Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7
Hibernation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7
Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8
1.4 Computer External Components . . . . . . . . . . . . . . . . 1–9
1.4 Design Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–18
2 Troubleshooting
Using the PhoenixBIOS Setup Utility . . . . . . . . . . . . . . . 2–2
Troubleshooting Flowcharts for Portable Computers . . . 2–3
2.1 Initial Troubleshooting . . . . . . . . . . . . . . . . . . . . 2–4
2.2 No Power, Part 1 . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
2.3 No Power, Part 2 . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
2.4 No Power, Part 3 . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
2.5 No Power, Part 4 . . . . . . . . . . . . . . . . . . . . . . . . . 2–8
2.6 No Video, Part 1 . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
2.7 No Video, Part 2 . . . . . . . . . . . . . . . . . . . . . . . . 2–10
2.8 Non-Functioning Docking Station
(if applicable). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–11
Maintenance and Service Guide iii
2.9 No Operating System (OS) Loading . . . . . . . . . 2–12
2.10 No OS Loading from Hard Drive, Part 1. . . . . 2–13
2.11 No OS Loading from Hard Drive, Part 2. . . . . 2–14
2.12 No OS Loading from Hard Drive, Part 3. . . . . 2–15
2.13 No OS Loading from Diskette Drive. . . . . . . . 2–16
2.14 No OS Loading from CD- or DVD-ROM Drive. . . .
2–17
2.15 No Audio, Part 1 . . . . . . . . . . . . . . . . . . . . . . . 2–18
2.16 No Audio, Part 2 . . . . . . . . . . . . . . . . . . . . . . . 2–19
2.17 Non-Functioning Device . . . . . . . . . . . . . . . . . 2–20
2.18 Non-Functioning Keyboard. . . . . . . . . . . . . . . 2–21
2.19 Non-Functioning Pointing Device. . . . . . . . . . 2–22
2.20 Network or Modem Connection . . . . . . . . . . . 2–23
3 Illustrated Parts Catalog
3.1 Serial Number Location. . . . . . . . . . . . . . . . . . . . . . . 3–1
3.2 Computer System Major Components. . . . . . . . . . . . 3–2
3.3 Plastics Kit Components . . . . . . . . . . . . . . . . . . . . . . 3–6
3.4 Hardware Kit Components. . . . . . . . . . . . . . . . . . . . . 3–7
3.5 Cable Kit Components. . . . . . . . . . . . . . . . . . . . . . . . 3–8
3.6 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . . 3–9
3.7 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–10
4 Removal and Replacement Preliminaries
4.1 Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
4.2 Service Considerations. . . . . . . . . . . . . . . . . . . . . . . . 4–1
Plastic Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . 4–2
4.3 Preventing Damage to Removable Drives. . . . . . . . . 4–2
4.4 Preventing Electrostatic Damage. . . . . . . . . . . . . . . . 4–4
4.5 Packaging and Transporting Precautions. . . . . . . . . . 4–4
4.6 Workstation Precautions . . . . . . . . . . . . . . . . . . . . . . 4–5
4.7 Grounding Equipment and Methods . . . . . . . . . . . . . 4–6
iv Maintenance and Service Guide
5 Removal and Replacement Procedures
5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2
5.2 Disassembly Sequence Chart. . . . . . . . . . . . . . . . . . . 5–3
5.3 Preparing the Computer for Disassembly . . . . . . . . . 5–4
5.4 Computer Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–5
5.5 LED Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–6
5.6 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–7
5.7 Optical Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–10
5.8 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–12
5.9 Heat Sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–16
5.10 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–20
5.11 Top Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–22
5.12 Diskette Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–25
5.13 TouchPad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–27
5.14 Hard Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–30
5.15 Disk Cell Real Time Clock (RTC) Battery . . . . . . 5–32
5.16 Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–34
5.17 System Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–37
6 Specifications
A Connector Pin Assignments
B Power Cord Set Requirements
3-Conductor Power Cord Set. . . . . . . . . . . . . . . . . . . . . . B–1
General Requirements . . . . . . . . . . . . . . . . . . . . . . . . B–1
Country-Specific Requirements. . . . . . . . . . . . . . . . . . . . B–2
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–3
C Screw Listing
Index
Maintenance and Service Guide v
Product Description
1.1 Models and Features
The Compaq Armada 110 Series notebook offers advanced
modularity, Intel Pentium III or Intel Celeron processors with
64-bit architecture, industry-leading Accelerated Graphics Port
(AGP) implementation, and extensive multimedia support.
.
1
Figure 1–1: Compaq Armada 110
Maintenance and Service Guide 1–1
Product Description
Models
Computer models are shown in Table1-1.
Table 1-1
Compaq Armada 110
Models and Model Naming Conventions
Key
A11 P 800 4X 10 V C 128 98 9L XXXXXX-XXX
12345678910 11
Key Description Options
1 Brand / Series
designator
2 Processor type P=Intel Pentium III C=Intel Celeron
3 Processor speed 800=800 MHz 700=700MHz
A=Armada 11=110
4Display
type/size/resolution
5 Hard drive size 10=10.0 GB
6 Optical drive
designator
7 Integrated
communication
8 RAM 64=64 MB 12=128 MB
9 Operating system 8=Windows 98
10 Battery cells / type L=9 cells,
11 SKU#
1–2 Maintenance and Service Guide
4=14.x”
2=12.x”
V=8X Max
DVD-ROM drive
M=modem
0 = none
8m=Windows
98/ME dual
install
Lithium ion
X=XGA (1024 × 768)
S=SVGA (800 × 600)
D=24X Max CD-ROM
drive
C=modem/NIC
combination card
M=Windows
Millennium Edition
H=9 cells, Nickel
Metal Hydride
Product Description
Table 1-1
Compaq Armada 110
Models and Model Naming Conventions (Continued)
12345678910 11
A11 P 800 4X 10 V C 64 M L 226917-B21
A11 P 800 4X 10 D C 64 M L 226915-B21
A11 P 800 4X 10 D C 64 M L 231665-B21
(NAFTA)
A11 P 800 TS 10 D C 64 M L 226918-B21
A11 C 700 TX 10 D C 64 M L 231664-B21
A11 C 700 TX 10 D C 64 M H 226919-B21
A11 C 700 TS 10 D M 64 8M H 226921-B21
A11 C 700 TS 10 D M 64 8M H 231663-B21
(NAFTA)
All Compaq Armada 110 computer models use configuration code JMVZ.
Maintenance and Service Guide 1–3
Product Description
Features
■ Processors, varying by computer model:
❏ 800-MHz Intel Pentium III Processor, with 256-KB
❏ 700-MHz Intel Celeron Processor, with 128-KB
■ ATI RAGE LT Pro, 4-MB SGRAM (synchronous graphics)
■ 64-MB high-performance Synchronous DRAM (SDRAM),
expandable to 320 MB
■ Microsoft Windows 98 or Windows Me preinstalled
■ Displays, varying by computer model:
❏ 14.1-inch, SXGA, CTFT (1024 × 768) display , with o v er
❏ 12.1-inch, SVGA, CTFT (800 × 600) display, with over
■ Full-size TouchPad keyboard
integrated cache
integrated cache
16.8 million colors
16.8 million colors
■ Mini PCI 56K V.90 modem or mini PCI V.90 modem plus
10/100 NIC combination card, varying by computer model
■ One Type II PC Card slot with support for both 32-bit
CardBus and 16-bit PC Cards
■ External AC adapter with power cord
■ 9-cell Lithium ion (Li ion) or Nickel Metal Hydride (NiMH)
battery pack
■ 10-GB high-capacity hard drive
1–4 Maintenance and Service Guide
■ Connectors for:
❏ stereo speaker/headphone
❏ microphone
❏ universal serial bus
❏ RJ-45 network (internal network models only)
❏ RJ-11 modem
❏ keyboard/mouse
❏ AC power
❏ infrared port
■ Stereo speakers
1.2 Security
If the notebook you are servicing has a password and you know
the password, follow these steps to disable or clear the password:
1. Access PhoenixBIOS Setup Utility (PSU) by turning on the
computer and pressing
on the screen.
Product Description
F10 when the Compaq logo displays
2. Enter the current password and press
enter.
3. Move to Password On Boot. Use the + or - key to select disable
and press
enter.
4. Move to Set Supervisor Password. In the upper space, enter the
current password and press
new password and confirm new password, press
enter again to exit the screen.
5. Use the arrow keys to select
6. Make sure
select
Maintenance and Service Guide 1–5
Exit Saving Changes is selected. Press enter, then
Yes to save the changes and exit.
enter. In the spaces to enter the
enter. Press
Exit from the menu bar.
Product Description
If the notebook you are servicing has an unknown password,
follow these steps to clear the password. These steps also clear
CMOS.
1. Prepare the computer for disassembly. Refer to Section 5.3,
“Preparing the Computer for Disassembly,” for more
information.
2. Remove the disk cell RTC battery (refer to Section 5.15,
“Disk Cell Real Time Clock (RTC) Battery”).
3. Wait approximately five minutes.
4. Reassemble the computer.
5. Connect AC power to the computer. Do NOT reinsert the
battery pack at this time.
6. Turn on the computer.
7. All passwords and all CMOS settings are clear.
1.3 Power Management
The computer operating system provides power management
utilities that help maintain and conserve power when the
computer is running on battery power.
To access power management options, select the power
application icon in the operating system’s Control Panel.
Enabling Power Savings
The Enable Power Savings feature in Power Management
controls all power management features. When set to disabled,
the power menu is automatically disabled. The default setting is
enabled.
1–6 Maintenance and Service Guide
Timeout Settings
Timeout functions can be set up to power down computer
components by selecting the Power Schemes tab from the power
application in the operating system’s Control Panel. When a
component such as the monitor, hard drive, system, or video is
not in use, the component powers down to conserve power. The
time out interval can be set from one minute up to several hours.
The component will power up again when you access it or press
any key.
Setting Standby
Standby is initiated by pressing the Fn+F4 hotkeys or
automatically by the computer if it reaches the defined percentage
of battery pack power remaining. When Standby is initiated,
several subsystems will po wer off to conserv e energ y. The system
will wake up from Standby when a key is pressed. Although the
Standby mode maintains the information and opens the file upon
wake-up, any unsaved information is lost if the computer is
turned off before ending Standby.
Product Description
Hibernation
Hibernation is an energy-saving feature and safeguard that saves
information in RAM to a hibernation file on the hard drive, then
shuts down the computer . Hibernation is initiated by the computer
when the computer reaches the defined percentage of battery
pack power remaining. To wake the computer from Hibernation,
press the power button. When you resume work, the information
returns to the screen where you left off.
The computer uses the operating system with a power
management utility that helps you maintain and conserve power
when the computer is running on battery power.
Maintenance and Service Guide 1–7
Product Description
Standby
Standby is an energy-saving feature that conserves power and
reduces startup time.
Standby reduces power to system components that are not being
used. Standby can be initiated by you or by the system. When
Standby is initiated, all work is saved in random access memory
(RAM) and the screen is cleared. When work is resumed, the
information returns to the screen.
Refer to Section 1.4 in this chapter to identify the Power , Standby,
and Hibernation controls.
1–8 Maintenance and Service Guide
Product Description
1.4 Computer External Components
The external components on the display and left side of the
computer are shown in Figure 1-2 and described in Table 1-2.
Figure 1–2: Display and Left Side Components
Table 1-2
Display and Left Side Components
Item Component Function
1 Display release latch Releases the display to open the computer.
2 Infrared port Links another IrDA-compliant device for
wireless communication.
3 Vent Allows airflow to cool internal components.
4 PC Card slot Supports 32-bit (CardBus) and 16-bit PC
Cards.
5 PC Card eject button Ejects a PC Card from the PC Card slot.
6 Diskette drive A ccepts 3.5-inch diskettes.
Maintenance and Service Guide 1–9
Product Description
The computer right side and rear panel components are shown in
Figure 1-3 and described in Table 1-3.
Figure 1–3: Right Side and Rear Panel Components
Table 1-3
Right Side and Rear Panel Components
Item Component Function
1 Optical drive Accepts CD- or DVD-ROM disks,
depending on the computer model.
2 Security cable slot Attaches an optional security cable to the
computer.
3 Stereo speaker/
headphone jack
4 Microphone jack Connects a single sound channel
1–10 Maintenance and Service Guide
Connects stereo speakers, headphones,
headset, or television audio.
microphone.
Table 1-3
Right Side and Rear Panel Components (Continued)
Item Component Function
Product Description
5 Keyboard/mouse
connector
6 Power jack Connects any one of the following:
7 RJ-11 jack (internal
modem models only)
8RJ-45 jack (network
models only)
9 Universal Serial Bus
(USB) connector
10 Vent Allows airflow to cool internal components.
11 Serial connector Connects a serial device.
Connects an optional full-sized keyboard or
a mouse. When this connector is used, both
the external and computer keyboard and
pointing device are active. An optional
splitter/adapter allows both an external
keyboard and mouse to be used at the
same time.
■ AC Adapter
■ Optional Automobile Power
Adapter/Charger
■ Optional Aircraft Power Adapter
Connects the modem cable to an internal
modem.
A modem cable is included with
✎
internal modem models.
Connects the network cable.
A network cable is included with
✎
network models
Connects USB devices.
12 External monitor
connector
13 Parallel connector Connects a parallel device.
Maintenance and Service Guide 1–11
Connects an external monitor or overhead
projector.
Product Description
The computer keyboard components are shown in Figure 1-4 and
described in Table 1-4.
Figure 1–4: Keyboard Components
1–12 Maintenance and Service Guide
Product Description
Table 1-4
Keyboard Components
Item Component Function
1 Fn key Used with hotkeys to perf orm preset hotkey
functions.
2 Caps lock key Turns on the caps lock function.
3 F1 through F12
function keys
4 Display switch Turns off the computer display if the
5 Embedded numeric
keypad
6 Cursor control keys Move the cursor around the screen.
7 Windows application
keys
8 Microsoft logo key Displays Windows Start menu.
Perform preset functions.
computer is closed while on.
Converts keys to numeric keypad.
Displays a menu when using a Microsoft
application. The menu is the same that is
displayed by pressing the right mouse
button.
Maintenance and Service Guide 1–13
Product Description
The components on the top of the computer are shown in
Figure 1-5 and described in Table 1-5.
Figure 1–5: Top Components
Table 1-5
Top Components
Item Component Function
1 Speakers (2) Produce stereo sound.
2 Hard drive light On: The primary hard drive is being
accessed.
1–14 Maintenance and Service Guide
Product Description
Table 1-5
Top Components (Continued)
Item Component Function
3 Battery light Green steady: Battery charging is complete.
Red steady: Battery pack is charging.
Red blinking: Battery pack is being queried,
computer cannot communicate with battery
pack, or battery pack is bad.
4 Num lock light On: Num lock is on and the embedded
numeric keypad is enabled.
5 Caps lock light On: Caps lock is on.
6 Scroll lock light On: Scroll lock is on.
7 Power button Turns the computer on or off or exits
Standby.
8 Easy Access buttons (4) Four buttons that provide quick access to
the Internet.
9 Microphone Inputs single-channel sound to the
computer; can be used whether the
computer is open or closed.
10 Right TouchP ad button Functions like the right mouse button on an
external mouse.
11 TouchPad Moves the mouse cursor, selects, and
activates.
12 Left TouchPad button Functions like the left mouse button on an
external mouse.
Maintenance and Service Guide 1–15
Product Description
The external components on the bottom of the computer are
shown in Figure 1-6 and described in Table 1-6.
Figure 1–6: Bottom Components
1–16 Maintenance and Service Guide
Product Description
Table 1-6
Bottom Components
Item Component Function
1 Mini PCI slot cover Contains the mini PCI modem or
network interface card.
2 Fan vent Provides airflow to cool internal
components.
3 Certificate of Authenticity label Contains the Product Key, which
may need to be entered before
using some Windows operating
systems.
4 Memory expansion
compartment
5 Front label area Contains agency information.
6 Battery compartment Accepts a 9-cell Lithium ion (Li ion)
7 Battery release latch Releases the battery pack from
Covers the memory expansion
compartment.
or Nickel Metal Hydride (Ni MH)
battery pack.
the battery bay.
8 Serial number Identifies the computer.
Maintenance and Service Guide 1–17
Product Description
1.4 Design Overview
This section presents a design overview of key parts and features
of the computer. Refer to Chapter 3, “Illustrated Parts Catalog”
and Chapter 5, “Removal and Replacement Procedures.”
The system board provides the following device connections:
■ Memory expansion board
■ Hard drive
■ Display
■ Keyboard/TouchPad
■ Audio
■ Intel Pentium III or Intel Celeron Processors
■ Fan
■ PC Card
■ Modem or modem/NIC
■ Microphone
The computer uses an electrical fan for ventilation. The fan is
controlled by a temperature sensor and is designed to turn on
automatically when high temperature conditions exist. These
conditions are affected by high external temperatures, system
power consumption, power management/battery conservation
configurations, battery fast charging, and software applications.
Exhaust air is displaced through the ventilation grill located on
the right side of the computer.
CAUTION: To properly ventilate the computer, allow at least a 3-inch
Ä
(7.6 cm) clearance on the left and right sides of the computer.
1–18 Maintenance and Service Guide
Troubleshooting
WARNING: Only authorized technicians trained by Compaq should
Å
repair this equipment. All troubleshooting and repair procedures
are detailed to allow only subassembly/module leve l repair.
Because of the complexity of the individual boards and
subassemblies, no one should attempt to make repairs at the
component level or to make modifications to any printed wiring
board. Improper repairs can create a safety hazard. Any indication
of component replacement or printed wiring board modification may
void any warranty or exchange allowances.
Utilities that are preinstalled on the computer include:
■ PhoenixBIOS Setup Utility—Allows you to modify or
restore factory default settings and configure the system
BIOS to diagnose and solve minor problems.
■ Power Management—Allows you to reduce your computer
power consumption. Power Management information is
contained in Chapter 1.
2
■ Security—Allows you to set or remove your power-on
password. Security information is contained in Chapter 1.
Maintenance and Service Guide 2–1
Troubleshooting
Using the PhoenixBIOS Setup Utility
The PhoenixBIOS Setup Utility (PSU) is built into the system.
You can configure the system BIOS and modify or restore factory
default settings, such as date and time, types of disk drives, po wer
management, and password settings. To run PSU, press F10
during system startup. When the main screen displays, use the
keyboard and arrow keys to move around the menus and make
selections.
2–2 Maintenance and Service Guide
Troubleshooting Flowcharts for
Portable Computers
Table 2-1
Troubleshooting Flowcharts Overview
Section Description
2.1 Initial troubleshooting
2.2 No power, part 1
2.3 No power, part 2
2.4 No power, part 3
2.5 No power, part 4
2.6 No video, part 1
2.7 No video, part 2
2.8 Non-functioning docking station
2.9 No operating system (OS) loading
Troubleshooting
2.10 No OS loading from hard drive, part 1
2.11 No OS loading from hard drive, part 2
2.12 No OS loading from hard drive, part 3
2.13 No OS loading from diskette drive
2.14 No OS loading from CD-/DVD-ROM drive
2.15 No audio, part 1
2.16 No audio, part 2
2.17 Non-functioning device
2.18 Non-functioning keyboard
2.19 Non-functioning pointing device
2.20 No network or modem connection
Maintenance and Service Guide 2–3
Troubleshooting
2.1 Initial Troubleshooting
Begin
Troubleshooting
N
Is there
power?
Y
N
Beeps,
LEDs, or error
Messages?
Y
N
Is there video?
(no boot)
Y
N
Is the OS
loading?
Y
N
Is there
sound?
Y
Go to
Section 2.2,
No Power
Check
LED board,
speaker
connections.
Go to
Section 2.6,
No Video
Go to
Section 2.9,
No OS Loading
Go to
Section 2.15,
No Audio
Y
Y
Connecting
or modem?
Y
All drives
working?
Keyboard/
pointing
device
working?
to network
End
N
Non-Functioning
N
Non Functioning
or Section 2.19,
Non-Functioning
Pointing Device.
N
Go to
Section 2.17,
Device
Go to
Section 2.18,
Keyboard,
Go to
Section 2.20,
Network
or Modem
Connection.
2–4 Maintenance and Service Guide
2.2 No Power, Part 1
s
e
.
No Power
(Power LED is off)
Remove from
docking station
if applicable.
Troubleshooting
N
Power up
on battery
power?
*Reset
power.
Y
N
Power up
on AC
power?
*Reset
power.
Y
Y
Power up
in docking
station?
Done
N
1. Reseat power cables in docking station
and at the AC outlet.
2. Ensure AC power source is active.
3. Ensure power strip is working.
YN
Done
Power up
in docking
station?
N
Power up
on battery
power?
Go to
Section 2.3,
No Power, Part 2
Y
N
Power up
on AC
power?
Go to
Section 2.4,
No Power, Part 3
Y
*Notes:
1. On some models, there is a separate re
button.
2. On some models, the computer may be
reset using the Standby switch and eith
the lid switch or the main power switch
Go to
Section 2.8,
Non-Functioning
Docking Station
Maintenance and Service Guide 2–5
Troubleshooting
2.3 No Power, Part 2
Continued from
Section 2.3,
No Power, Part 1
Visually check for
debris in battery
socket and clean
if necessary
Y
Power on?
N
Check battery by
recharging,
moving to another
computer, or
replacing it.
Power on?
Y
Done
Done
N
Replace power
supply, (if
applicable)
N
Go to
Power on?
Section 2.4,
No Power, Part 3
Y
Done
2–6 Maintenance and Service Guide
2.4 No Power, Part 3
Continued from
Section 2.3,
No Power, Part 2
Plug directly
into AC outlet.
Y
Troubleshooting
Power LED
on?
N
Reseat AC adapter
in computer and
at power source.
Power on?
N
Power outlet
active?
Y
Replace
power cord.
Power on?
Done
Y
Done
N
Try different
outlet.
Internal or
external AC
adapter?
Internal
Go to
Section 2.5,
No Power, Part 4
Y
Done Done
External
Replace external
AC adapter.
N
Power on?
Y
N
Maintenance and Service Guide 2–7
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