Compaq Evo N600c Manual

b
Maintenance and Service Guide
Compaq Evo N600c
Document Part Number: 235393-001
August 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, Evo, the Compaq logo, and Premier•Sound are trademarks of Compaq
Information Technologies Group, L.P.
Microsoft and Windows are trademarks of Microsoft Corporation.
Intel and Pentium are trademarks of Intel Corporation.
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 August 2001
Document Part Number: 235393-001

Maintenance and Service Guide iii
Contents
1Product Description
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
1.2 Clearing a Password . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
1.3 Power Management. . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
1.4 Computer External Components . . . . . . . . . . . . . . . . 1–6
1.5 Design Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . 1–16
2Troubleshooting
2.1 Computer Setup and Diagnostics Utilities . . . . . . . . 2–1
Selecting Computer Setup or
Compaq Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Selecting from the File Menu . . . . . . . . . . . . . . . . . . 2–3
Selecting from the Security Menu . . . . . . . . . . . . . . . 2–4
Selecting from the Advanced Menu . . . . . . . . . . . . . 2–5
2.2 Using Compaq Diagnostics. . . . . . . . . . . . . . . . . . . . 2–7
Obtaining, Saving, or Printing
Configuration Information. . . . . . . . . . . . . . . . . . . . . 2–7
Obtaining, Saving, or Printing Diagnostic
Test Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8
2.3 Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . 2–10
2.1 Initial Troubleshooting . . . . . . . . . . . . . . . . . . . 2–11
2.2 No Power, Part 1 . . . . . . . . . . . . . . . . . . . . . . . . 2–12
2.3 No Power, Part 2 . . . . . . . . . . . . . . . . . . . . . . . . 2–13
2.4 No Power, Part 3 . . . . . . . . . . . . . . . . . . . . . . . . 2–14
2.5 No Power, Part 4 . . . . . . . . . . . . . . . . . . . . . . . . 2–15
2.6 No Video, Part 1 . . . . . . . . . . . . . . . . . . . . . . . . 2–16
2.7 No Video, Part 2 . . . . . . . . . . . . . . . . . . . . . . . . 2–17

iv Maintenance and Service Guide
2.8 Nonfunctioning Docking Station
(if applicable). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–18
2.9 No Operating System (OS) Loading . . . . . . . . . 2–19
2.10 No OS Loading from Hard Drive, Part 1. . . . . 2–20
2.11 No OS Loading from Hard Drive, Part 2. . . . . 2–21
2.12 No OS Loading from Hard Drive, Part 3. . . . . 2–22
2.13 No OS Loading from Diskette Drive. . . . . . . . 2–23
2.14 No OS Loading from CD- or
DVD-ROM Drive . . . . . . . . . . . . . . . . . . . . . . . . . . 2–24
2.15 No Audio, Part 1 . . . . . . . . . . . . . . . . . . . . . . . 2–25
2.16 No Audio, Part 2 . . . . . . . . . . . . . . . . . . . . . . . 2–26
2.17 Nonfunctioning Device . . . . . . . . . . . . . . . . . . 2–27
2.18 Nonfunctioning Keyboard . . . . . . . . . . . . . . . . 2–28
2.19 Nonfunctioning Pointing Device. . . . . . . . . . . 2–29
2.20 Network or Modem Connection Problems . . . 2–30
3Illustrated Parts Catalog
3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 3–1
3.2 Computer System Major Components . . . . . . . . . . . 3–2
3.3 Miscellaneous Plastics Kit Components . . . . . . . . . . 3–8
3.4 Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . . 3–9
3.5 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–12
4Removal 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 . . . . . . . . 4–3
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

Maintenance and Service Guide v
5Removal 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
5.4 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–6
5.5 Modem/Network Interface Card (NIC). . . . . . . . . . 5–10
5.6 Real Time Clock (RTC) Battery . . . . . . . . . . . . . . . 5–12
5.7 TouchPad or Touch Button . . . . . . . . . . . . . . . . . . . 5–13
5.8 Switch Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–15
5.9 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–17
5.10 Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–20
5.11 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–23
5.12 Fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–27
5.13 DC-DC Converter Board. . . . . . . . . . . . . . . . . . . . 5–30
5.15 Modem Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–33
6Specifications
AConnector Pin Assignments
BPower Cord Set Requirements
3-Conductor Power Cord Set . . . . . . . . . . . . . . . . . . . . . . B–1
General Requirements . . . . . . . . . . . . . . . . . . . . . . . . B–1
Country-Specific Requirements . . . . . . . . . . . . . . . . . . . . B–2
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–2
CScrew Listing
Index

Maintenance and Service Guide 1–1
1
Product Description
The Compaq Evo N600c Series of Personal Computers offers
advanced modularity, Mobile Intel Pentium III processors-M with
64-bit architecture, industry-leading Accelerated Graphics Port
(AGP) implementation, and extensive multimedia support.
Figure 1-1. Compaq Evo N600c
1.1 Features
■Mobile Intel Pentium III processor 1.066 GHz-M or
866MHz-M, with 512-KB integrated L2 cache, varying by
computer model

1–2Maintenance and Service Guide
Product Description
■ATI Mobility Radeon with 64-bit video graphics,
16-MB double date rate (DDR) SDRAM, 4X AGP
graphics card
■128-MB high-performance Synchronous DRAM (SDRAM),
expandable to 1024 MB
■Microsoft Windows 98, Windows NT 4.0, or Windows 2000
preinstalled, varying by computer model
■14.1-inch, XGA, TFT (1024 ×768) display, with over
16.7 million colors
■Full-size TouchPad or pointing stick keyboard, varying by
computer model
■Mini PCI 10/100 network interface card (NIC) or Mini PCI
V.90 modem plus 10/100 NIC combination card, varying by
computer model
■Support for two Type II PC Card slots with support for both
32-bit CardBus and 16-bit PC Cards
■External AC adapter with power cord
■8-cell Lithium ion (Li ion) battery pack
■30-, 20-, or 15-GB high-capacity hard drive

Product Description
Maintenance and Service Guide 1–3
■Connectors for:
❏RJ-11 modem
❏Mono microphone
❏Stereo line-out/headphone
❏MultiPort
❏Universal Serial Bus
❏Docking
❏Parallel devices
❏Serial devices
❏Composite TV
❏External keyboard/mouse
❏RJ-45 network
❏External monitor
❏AC power
■Stereo speakers providing Compaq Premier·Sound™ 16-bit
stereo sound

1–4Maintenance and Service Guide
Product Description
1.2 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.
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 5.7, “Real Time
Clock (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.

Product Description
Maintenance and Service Guide 1–5
1.3 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

1–6Maintenance and Service Guide
Product Description
1.4 Computer External Components
The external components on the front and right side of the
computer are shown in Figure 1-2 and described in Table 1-2.
.
Figure 1-2. Front and Right Side Components
Table 1-2
Front and Right Side Panel Components
Item Component Function
1Display release latch Opens the computer.
2RJ-11 jack (internal
modem models only)
Connects the modem cable to an internal
modem. A modem cable is included with
internal modem models.
3MultiBay Accepts a diskette drive, CD- or DVD-ROM
drive, or secondary battery pack.

Product Description
Maintenance and Service Guide 1–7
4Security cable slot Attaches an optional security cable to the
computer.
5Mono microphone jack Connects a mono microphone, disabling the
built-in microphone.
6Stereo line-out/
headphone jack
Connects stereo speakers, headphones,
headset, or television audio.
7Volume control buttons Adjust the volume of the stereo speakers.
8Infrared port Links to another IrDA-compliant device for
wireless communication.
9Power 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.
10 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.
11 Drive activity light Turns on when the hard drive, CD-, or
DVD-ROM drive is accessed.
12 Diskette drive light Turns on when the diskette drive in the
Media Bay or the optional external diskette
drive is accessed.
Table 1-2
Front and Right Side Panel Components (Continued)
Item Component Function

1–8Maintenance and Service Guide
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
1MultiPort Connects wireless communication devices,
such as a Bluetooth or 802.11b MultiPort
Module, and other options.
2DC power jack Connects any one of the following:
■AC adapter
■Optional automobile power
adapter/charger
■Optional aircraft power adapter
3Keyboard/mouse
connector
Connects an external keyboard or
PS/2-compatible external mouse. To
connect a keyboard and a mouse at the
same time, use an optional Y-adapter.

Product Description
Maintenance and Service Guide 1–9
4Parallel connector Connects a parallel device.
5Docking connector Connects the computer to the optional
expansion base, convenience base, or port
replicator.
6Serial connector Connects a serial device.
7External monitor
connector
Connects an external monitor or overhead
projector.
8Composite TV
connector
Connects a television, VCR, camcorder, or
overhead projector.
9RJ-45 jack (network
models only)
Connects the network cable. A network
cable is not included with the computer.
10 USB connectors (2) Connects USB devices.
11 Vent Allows airflow to cool internal components.
ÄCAUTION: To prevent damage, the
computer shuts down if 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.
12 Hard drive Supports the removable primary hard drive.
Two screws secure the hard drive to the
computer.
13 PC Card slots (2) Support a 32-bit (CardBus) or 16-bit PC
Card.
14 PC Card eject buttons Eject a PC Card from a PC Card slot.
Table 1-3
Right Side and Rear Panel Components (Continued)
Item Component Function

1–10 Maintenance and Service Guide
Product Description
The keyboard components are shown in Figure 1-4 and described
in Table 1-4.
Figure 1-4. Keyboard Components

Product Description
Maintenance and Service Guide 1–11
Table 1-4
Keyboard Components
Item Component Function
1Fn key Used with hotkeys to perform preset
hotkey functions.
2Caps lock key Turns on the caps lock function.
3F1 through F12
function keys
Perform preset functions.
4Embedded numeric
keypad
Converts keys to numeric keypad.
5Cursor control keys Move the cursor around the screen.
6Windows application key Displays a menu when using a Microsoft
application. The menu is the same one
that is displayed by pressing the right
mouse button.
7Windows logo key Displays Windows Start menu.

1–12 Maintenance and Service Guide
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
1Num lock light On: Num lock is on and the embedded
numeric keypad is enabled.
2Scroll lock light On: Scroll is on.

Product Description
Maintenance and Service Guide 1–13
3Caps lock light On: Caps lock is on.
4Standby button Turns on the computer if it is off.
Initiates and exits Standby.
When pressed with the Fn key, initiates
Hibernation.
5Stereo speakers (2) Produce stereo sound.
6Easy Access buttons (4) Provide quick access to the Internet. Refer
to the Hardware Guide that ships with the
computer for information about these
buttons.
7Power switch Turns on the computer. To turn off the
computer, use the operating system
Shut Down command.
8Pointing stick Moves the mouse cursor.
9Right mouse button Functions like the right mouse button on an
external mouse.
10 Scroll button Can be set to scroll, magnify, or function like
the third button on an external mouse.
11 Left mouse button Functions like the left mouse button on an
external mouse.
Table 1-5
Top Components (Continued)
Item Component Function

1–14 Maintenance and Service Guide
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
Table 1-6
Bottom Components
Item Component Function
1MultiBay Accepts a diskette drive, CD- or
DVD-ROM drive, or secondary
battery pack.
2MultiBay release latch Releases the MultiBay device from
the connector.
3Air vent Allows airflow to cool internal
components.
4Fan Provides airflow to cool internal
components.

Product Description
Maintenance and Service Guide 1–15
5Certificate of Authenticity label Contains the Product Key, which
may need to be entered before
using some Windows operating
systems.
6Hard drive security screw Secures the hard drive.
7Memory expansion
compartment cover
Covers the memory expansion
compartment that contains two
memory expansion slots for
memory expansion boards.
8Docking recess latch Secures the computer to an
optional expansion base,
convenience base, or port
replicator.
9Battery release latch Releases the battery pack from
the battery compartment.
10 Battery compartment Holds the battery pack.
11 Serial number Identifies the computer; needed
when you call Compaq customer
support.
Table 1-6
Bottom Components (Continued)
Item Component Function