Compaq evo n115 schematic
b
Maintenance and Service Guide
Compaq Evo N115 Series
Document Part Number: 263816-001
January 2002
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.
© 2002 Compaq Information Technologies Group, L.P.
Compaq, the Compaq logo, and Evo are trademarks of Compaq Information
Technologies Group, L.P. in the U.S. and/or other countries.
Microsoft and Windows are trademarks of Microsoft Corporation in the U.S.
and/or other countries.
Athlon, Duron, and PowerNow! are trademarks of the AMD Corporation in the
U.S. and/or 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 January 2002
Document Part Number: 263816-001
Contents
1 Product Description
1.1 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8
1.3 Clearing a Password. . . . . . . . . . . . . . . . . . . . . . . . . . 1–9
1.4 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . 1–10
1.5 Computer External Components . . . . . . . . . . . . . . . 1–11
1.6 Design Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–22
2 Troubleshooting
2.1 Using the PhoenixBIOS Setup Utility . . . . . . . . . . . . 2–1
2.2 Troubleshooting Flowcharts. . . . . . . . . . . . . . . . . . . . 2–2
3 Illustrated Parts Catalog
3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . 3–1
3.2 Computer System Major Components. . . . . . . . . . . . 3–2
3.3 Plastics and Hardware Kit Components. . . . . . . . . . . 3–8
3.4 Cable Kit Components . . . . . . . . . . . . . . . . . . . . . . . . 3–9
3.5 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . 3–10
3.6 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–12
Maintenance and Service Guide iii
4 Removal and Replacement Preliminaries
4.1 Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
4.2 Service Considerations. . . . . . . . . . . . . . . . . . . . . . . . 4–2
Plastic Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . 4–2
4.3 Preventing Damage to Removable Drives . . . . . . . . . 4–3
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
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–11
5.5 Memory Expansion Board . . . . . . . . . . . . . . . . . . . . 5–11
5.6 Mini PCI Communications Board . . . . . . . . . . . . . . 5–13
5.7 Optical Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–16
5.8 LED Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–18
5.9 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–20
5.10 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–22
5.11 Heat Spreader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–28
5.12 Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–34
5.13 Disk Cell RTC Battery. . . . . . . . . . . . . . . . . . . . . . 5–36
5.14 Top Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–38
5.15 Diskette Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–42
5.16 Charger Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–46
5.17 Left Side Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–48
5.18 Right Side Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . 5–50
5.19 Speaker Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 5–52
5.20 Audio Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–54
5.21 Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–56
5.22 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–58
iv Maintenance and Service Guide
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–2
C Screw Listing
Index
Maintenance and Service Guide v
1
Product Description
The Compaq Evo N115 Series of Personal Computers offers
advanced modularity, AMD Mobile Athlon 4 and AMD Mobile
Duron processors with 64-bit architecture, industry-leading
Accelerated Graphics Port (AGP) implementation, and extensive
multimedia support.
Figure 1-1. Compaq Evo N115
Maintenance and Service Guide 1–1
Product Description
1.1 Models
Computer models are shown in Table 1-1.
Table 1-1
Compaq Evo N115
Models and Model Naming Conventions
Key
N1 A 100 X4 20 V M 25 L O XXXXXX-XXX
123 45678910 11
Key Description Options
1 Brand/Series
designator
2 Processor type A = AMD Athlon D = AMD Duron
3 Processor speed 110 = 1.10 GHz
4 Display type/
size/resolution
5 Hard drive size 30 = 30 GB
6 Optical drive
designator
7 Integrated
communication
8 RAM 25 = 256 MB 12 = 128 MB
9 Battery cells/type L = 8 cells, Lithium ion (Li ion)
10 Operating system O = Windows XP
11 SKU#
N1 = Evo Notebook 115
900 = 900 MHz
100 = 1.00 GHz
950 = 950 MHz
X = XGA
(1024 × 768)
20 = 20 GB
D = CD-ROM
V = DVD-ROM
R = CD-RW
M = modem 0 = none
850 = 850 MHz
4 = 14.x-inch
3 = 13.x-inch
15 = 15 GB
10 = 10 GB
W = DVD-RW
omitted = none
1–2 Maintenance and Service Guide
Product Description
Table 1-1
Compaq Evo N115
Models and Model Naming Conventions
Build-to-Order Models
123 45678910 11
N1 A 100 X4 20 W M 25 L O SKU#
Belgium Config. code = KDH8 470023-558
Europe Config. code = KDH8 470020-516
France Config. code = KDH8 470020-518
Germany Config. code = KDH8 470020-520
Italy Config. code = KDH8 470020-522
The Netherlands Config. code = KDH8 470023-559
Poland Config. code = KDH8 470024-539
Switzerland Config. code = KDH8 470024-818
United Kingdom Config. code = KDH8 470023-560
United States Config. code = KDKU 470023-833
(Continued)
United States Config. code = KDKN 470023-551
N1 A 100 X4 20 V M 25 L O SKU#
Australia/New Zealand Config. code = KDKV 470020-462
Asia/Pacific Config. code = KDKV 470021-815
India Config. code = KDKV 470020-466
Portugal Config. code = KDH2 470024-541
Spain Config. code = KDH2 470024-542
Thailand Config. code = KDKV 470024-535
Maintenance and Service Guide 1–3
Product Description
Models and Model Naming Conventions
Table 1-1
Compaq Evo N115
(Continued)
Build-to-Order Models
N1 D 950 X4 20 V M 25 L O SKU#
Belgium Config. code = KDH7 470024-815
Denmark Config. code = KDH7 470024-536
Europe Config. code = KDH7 470023-930
Germany Config. code = KDH7 470025-650
Italy Config. code = KDH7 470023-570
Latin America Config. code = KDH3 470024-543
The Netherlands Config. code = KDH7 470024-816
Poland Config. code = KDH7 470024-538
Spain (NAFTA) Config. code = KDH3 470024-544
Sweden Config. code = KDH7 470024-817
Switzerland Config. code = KDH7 470023-576
United States Config. code = KDKM 470023-557
N1 D 950 X4 20 W M 12 L O SKU#
France Config. code = KJ21 470024-283
United Kingdom Config. code = KJ21 470024-540
N1 D 950 X4 20 D M 12 L O SKU#
Australia/New Zealand Config. code = KDH1 470023-555
(Continued)
Asia/Pacific Config. code = KDH1 470023-968
India Config. code = KDH1 470023-556
Thailand Config. code = KDH1 470024-534
1–4 Maintenance and Service Guide
Table 1-1
Compaq Evo N115
Models and Model Naming Conventions
Product Description
(Continued)
Build-to-Order Models
N1 D 900 X4 20 W M 25 L O SKU#
Japan Config. code = KDJR 470023-566
N1 D 900 X4 20 V M 25 L O SKU#
Canada Config. code = KDHC 470020-491
French Canada Config. code = KDHC 470020-511
United States Config. code = KDHB 470020-490
N1 D 900 X4 20 V M 12 L O SKU#
France Config. code = KDKW 470024-749
United Kingdom Config. code = KDJR 470024-192
N1 D 900 X4 20 D M 12 L O SKU#
Denmark Config. code = KDJS 470020-473
Europe Config. code = KDJS 470020-474
Finland Config. code = KDJS 470020-475
Italy Config. code = KDJS 470020-479
Latin America Config. code = KDH9 470020-480
The Netherlands Config. code = KDJS 470020-488
Norway Config. code = KDJS 470020-481
Portugal Config. code = KDJS 470020-483
(Continued)
Spain Config. code = KDJS 470020-484
Spain (NAFTA) Config. code = KDH9 470020-489
Sweden Config. code = KDJS 470020-485
Maintenance and Service Guide 1–5
Product Description
Models and Model Naming Conventions
Table 1-1
Compaq Evo N115
(Continued)
Build-to-Order Models
N1 D 900 X4 20 R M 25 L O SKU#
Japan Config. code = KDJP 470023-561
N1 D 900 X4 10 V M 12 L O SKU#
United States Config. code = KDH6 470024-820
Configure-to-Order Models
All configure-to-order models are United States models and have a
config. code of JNZZ.
N1 A 100 X4 20 V C 25 L O 470025-434
N1 A 100 X4 20 V C 25 L O 470024-822
N1 A 100 X4 20 V C 12 L O 470025-432
N1 A 100 X4 20 W C 25 L O 470025-429
N1 A 100 X4 20 W C 12 L O 470025-427
N1 A 100 X3 20 V C 25 L O 470025-433
N1 A 100 X3 20 V C 12 L O 470025-430
N1 A 100 X3 20 W C 25 L O 470025-428
N1 A 100 X3 20 W C 12 L O 470025-426
N1 D 950 X4 20 V C 25 L O 470025-444
(Continued)
N1 D 950 X4 20 V C 12 L O 470025-441
N1 D 950 X4 20 D C 25 L O 470025-438
N1 D 950 X4 20 D C 12 L O 470025-436
1–6 Maintenance and Service Guide
Product Description
Table 1-1
Compaq Evo N115
Models and Model Naming Conventions
Configure-to-Order Models
All configure-to-order models are United States models and have a
config. code of JNZZ.
N1 D 950 X4 10 V C 25 L O 470025-425
N1 D 950 X4 10 V C 12 L O 470025-423
N1 D 950 X4 10 D C 25 L O 470025-420
N1 D 950 X4 10 D C 12 L O 470025-418
N1 D 950 X3 20 V C 25 L O 470025-442
N1 D 950 X3 20 V C 12 L O 470025-439
N1 D 950 X3 20 D C 25 L O 470025-437
N1 D 950 X3 20 D C 12 L O 470025-435
N1 D 950 X3 10 V C 25 L O 470025-424
N1 D 950 X3 10 V C 12 L O 470025-422
N1 D 950 X3 10 D C 25 L O 470025-419
(Continued)
N1 D 950 X3 10 D C 12 L O 470025-414
N1 D 950 X3 10 D C 12 L O 470025-415
N1 D 900 X4 15 D C 25 L O 470024-821
Maintenance and Service Guide 1–7
Product Description
1.2 Features
1.1- or 1.0-GHz, or 950- or 900-MHz AMD Mobile Athlon 4
■
processor, with 256-KB integrated L2 cache, or 950-, 900-, or
850-MHz AMD Mobile Duron processor, with 64-KB
integrated L2 cache, varying by computer model
VIA ProSavage KN 133 graphics accelerator with up to
■
32-MB of shared SDRAM and 4X AGP graphics card
128-MB high-performance Synchronous DRAM (SDRAM),
■
expandable to 384 MB
Microsoft Windows XP Home or Professional, varying by
■
computer model
14.1- or 13.3-inch XGA, TFT (1024 × 768) display with over
■
16.7 million colors, varying by computer model
Full-size keyboard with TouchPad pointing device
■
Network interface card (NIC) integrated on the system board,
■
with a mini PCI V.92 modem
Support for one Type I/II/III PC Card slot with support for
■
both 32-bit CardBus and 16-bit PC Cards
External 60W AC adapter with power cord
■
8-cell Lithium ion (Li ion) battery pack
■
30-, 20-, 15-, or 10-GB high-capacity hard drive, varying by
■
computer model
1–8 Maintenance and Service Guide
Connectors for:
■
RJ-45 network
❏
RJ-11 modem
❏
Universal Serial Bus
❏
S-Video
❏
Parallel devices
❏
External monitor
❏
AC power
❏
Stereo line out/headphone
❏
Mono microphone
❏
External keyboard/mouse
❏
JBL Pro stereo speakers with bass reflex
■
1.3 Clearing a Password
If the notebook you are servicing has an unknown password,
follow these steps to clear the password. These steps also
clear CMOS:
Product Description
1. Prepare the computer for disassembly (refer to Section 5.3,
“Preparing the Computer for Disassembly,” for more
information).
2. Remove the RTC battery (refer to Section 5.13, “Disk Cell
RTC Battery”).
3. Wait approximately five minutes.
4. Replace the RTC battery and reassemble the computer.
5. Connect AC power to the computer. Do not reinsert any
battery packs at this time.
6. Turn on the computer.
All passwords and all CMOS settings have been cleared.
Maintenance and Service Guide 1–9
Product Description
1.4 Power Management
The computer comes with power management features that
extend battery operating time and conserve power. The computer
supports the following power management features:
Standby
■
Hibernation
■
Setting customization by the user
■
Hotkeys for setting level of performance
■
Smart battery that provides an accurate battery power gauge
■
Battery calibration
■
Lid switch suspend/resume
■
Power/suspend button
■
Advanced Configuration and Power Management (ACP)
■
compliance
1–10 Maintenance and Service Guide
Product Description
1.5 Computer External Components
The external components on the right side of the computer are
shown in Figure 1-2 and described in Table 1-2.
.
Figure 1-2. Right Side Components
Table 1-2
Right Side Components
Item Component Function
1 Mono microphone jack Connects a mono microphone, disabling the
built-in microphone.
2 Stereo speaker/
headphone jack
3 Optical drive Accepts a CD-ROM, CD-RW, DVD-ROM, or
Maintenance and Service Guide 1–11
Connects stereo speakers, headphones,
headset, or television audio.
combination DVD-ROM/CD-RW drive.
Product Description
The computer left side components are shown in Figure 1-3 and
described in Table 1-3.
Figure 1-3. Left Side Components
1–12 Maintenance and Service Guide
Product Description
Table 1-3
Left Side Components
Item Component Function
1 Security cable slot Attaches an optional security cable to the
computer.
2 Vents Allow airflow to cool internal components.
CAUTION: To prevent damage, the computer shuts down if an
Ä
overheating condition occurs. Do not block the cooling vent.
Avoid placing the computer on a blanket, rug, or other flexible
surface that may cover the vent area.
3 PC Card eject button Ejects a PC Card from the PC Card slot.
4 PC Card slot Supports a 32-bit (CardBus) or 16-bit
PC Card.
5 Diskette drive Accepts 3.5-inch diskettes.
Maintenance and Service Guide 1–13
Product Description
The computer rear panel components are shown in Figure 1-4 and
described in Table 1-4.
Figure 1-4. Rear Panel Components
Table 1-4
Rear Panel Components
Item Component Function
1 Battery light On: A battery pack is charging.
Blinking: A battery pack that is the only
available power source has reached a
low-battery condition.
2 Drive activity light Turns on when the hard drive, CD-, or
DVD-ROM drive is accessed.
1–14 Maintenance and Service Guide
Product Description
Table 1-4
Rear Panel Components
Item Component Function
3 DC power jack Connects any one of the following:
AC adapter
■
Optional automobile power
■
adapter/charger
Optional aircraft power adapter
■
4 S-Video connector Connects a television, VCR, camcorder, or
overhead projector.
(Continued)
5 External monitor
connector
6 Parallel connector Connects a parallel device.
7 External keyboard/
mouse connector
8 USB connectors (2) Connects USB devices.
9 RJ-45 network jack Connects the network cable. A network
10 RJ-11 modem jack Connects the modem cable to an internal
Connects an external monitor or overhead
projector.
Connects an optional full-sized keyboard or
a mouse. Both external mouse and
computer pointing device are active. An
optional splitter/adapter allows both an
external keyboard and mouse to be used at
the same time.
cable is not included with the computer.
modem. A modem cable is included with
internal modem models.
Maintenance and Service Guide 1–15
Product Description
The keyboard components are shown in Figure 1-5 and described
in Table 1-5.
Figure 1-5. Keyboard Components
1–16 Maintenance and Service Guide
Table 1 - 5
Keyboard Components
Item Component Function
Product Description
1
2 Num lock key Turns on the numeric lock function.
3 Embedded numeric
4 Cursor control keys Move the cursor around the screen.
5 Windows application
6 Windows logo keys Displays the Windows Start menu.
7
through
F1
function keys
keypad
key
key Used with hotkeys to perform preset hotkey
Fn
F12
Perform preset functions.
Converts keys to numeric keypad.
Displays a menu when using a Microsoft
application. The menu is the same one that
is displayed by pressing the right mouse
button.
functions.
Maintenance and Service Guide 1–17
Product Description
The components on the top of the computer are shown in
Figure 1-6 and described in Table 1-6.
Figure 1-6. Top Components
Table 1-6
Top Components
Item Component Function
1 Power light On: Power is turned on.
Blinking: Computer is in Standby. The
power light also blinks if a battery pack that
is the only available power source reaches
a low-battery condition.
2 Num lock light On: Num lock is on and the embedded
numeric keypad is enabled.
3 Drive activity light Turns on when the hard drive, CD-, or
DVD-ROM drive is accessed.
1–18 Maintenance and Service Guide
Product Description
Table 1-6
Top Components
Item Component Function
4 Battery light On: A battery pack is charging.
Blinking: A battery pack that is the only
available power source has reached a
low-battery condition.
5 Easy Access buttons (3) Provide quick access to the Internet. Refer
to the
computer for information about these
buttons.
6 Power button Turns on the computer. Use the operating
system Shut Down command to turn off the
computer.
7 Digital audio button Launches Windows Media Player to play
MP3 music.
8 Volume control buttons Adjust the volume of the stereo speakers.
(Continued)
Hardware Guide
that ships with the
9 Caps lock light On: Caps lock is on.
10 Drive activity light Turns on when the hard drive, CD-, or
DVD-ROM drive is accessed.
11 Display lid switch Turns off the computer display if the
computer is closed while on.
12 Stereo speakers Produce stereo sound.
13 TouchPad buttons Function like the left and right mouse
buttons on an external mouse.
14 TouchPad Moves the mouse cursor, selects, and
activates.
15 EasyScroll button Scrolls the screen left, right, up, and down.
16 Display release latch Opens the computer.
Maintenance and Service Guide 1–19
Product Description
The external components on the bottom of the computer are
shown in Figure 1-7 and described in Table 1-7.
Figure 1-7. Bottom Components
Table 1-7
Bottom Components
Item Component Function
1 Tilt feet Tilt the computer for ease of use.
2 Vents Allow airflow to cool internal
components.
CAUTION: To prevent damage, the computer shuts down if
Ä
an overheating condition occurs. Do not block the cooling
vent. Avoid placing the computer on a blanket, rug, or other
flexible surface that may cover the vent area.
3 Memory expansion
compartment
1–20 Maintenance and Service Guide
Covers the memory expansion
compartment that contains two
memory expansion slots for
memory expansion boards.
Product Description
Table 1-7
Bottom Components
Item Component Function
4 Battery pack release switch Releases the battery pack from
5 Battery bay Accepts an 8-cell Lithium ion
6 Label area Contains the serial number and
7 Hard drive retention screw Secures the hard drive to the
8 Hard drive bay Supports the removable primary
(Continued)
the battery compartment.
(li ion) battery pack.
Microsoft Certificate of Authenticity
labels, which may be needed
when you call Compaq customer
support or use some Windows
operating systems.
computer.
hard drive. The hard drive is
secured to the computer by one
screw.
9 Mini PCI compartment Contains the mini PCI modem
card.
Maintenance and Service Guide 1–21
Product Description
1.6 Design Overview
This section presents a design overview of key parts and features
of the computer. Refer to Chapter 3, “Illustrated Parts Catalog,” to
identify replacement parts, and Chapter 5, “Removal and
Replacement Procedures,” for disassembly steps. The system
board provides the following device connections:
Memory expansion board
■
Hard drive
■
Display
■
Keyboard/TouchPad or pointing stick
■
Audio
■
AMD Athlon and Duron processors
■
Fan
■
PC Card
■
Modem or modem/NIC
■
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 left side of the computer.
CAUTION: To properly ventilate the computer, allow at least a
Ä
3-inch (7.6 cm) clearance on the left and right sides of the
computer.
1–22 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 level 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.
2
Security—Allows you to set or remove your power-on
■
password.
2.1 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, power
management, anfd password settings. To run PSU, press the
key during system startup. When the main screen displays, use
the keyboard and arrow keys to move around the menus and make
selections.
Maintenance and Service Guide 2–1
F10
Troubleshooting
2.2 Troubleshooting Flowcharts
Tabl e 2 - 1
Troubleshooting Flowcharts Overview
Flowchart 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 Nonfunctioning docking station
2.9 No operating system (OS) loading
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- or DVD-ROM drive
2.15 No audio, part 1
2.16 No audio, part 2
2.17 Nonfunctioning device
2.18 Nonfunctioning keyboard
2.19 Nonfunctioning pointing device
2.20 No network or modem connection
2–2 Maintenance and Service Guide
Flowchart 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.
All drives
working?
Y
Keyboard/
pointing device
working?
Y
Connecting
to network
or modem?
Y
End
Troubleshooting
N
Section 2.17,
Nonfunctioning
N
Section 2.18,
Nonfunctioning
or Section 2.19,
Nonfunctioning
Pointing Device.
N
Section 2.20,
No Network or
Go to
Device.
Go to
Keyboard,
Go to
Modem.
Maintenance and Service Guide 2–3
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