compaq evo notebook n800 xx series User Manual

							1–46Maintenance and Service Guide
Product Description
Table 1-6
Front and Right Side Components
Item Component Function
1 Stereo speakers (2) Produce stereo sound.
2 Power/Suspend light On: Power is turned on.
Off: Power is turned off.
Blinking: Computer is in Suspend mode.
3 Display release latch Opens the computer.
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 Battery bay Accepts an 8-cell lithium ion (Li ion) 
battery pack.
6 Hard drive bay Supports the removable primary hard drive. 
The hard drive is secured to the computer 
by one screw.
7 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.
8 Security cable slot Attaches an optional security cable to the 
computer.
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							Product Description
Maintenance and Service Guide1–47
The computer rear panel and left side components are shown in 
Figure 1-3 and described in Table 1-7.
Figure 1-3. Rear Panel and Left Side Components
Table 1-7
Rear Panel and Left Side Components
Item Component Function
1 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.
2 Infrared port Provides wireless communication between 
the computer and another infrared-
equipped device using an infrared beam.
3 Parallel connector Connects a parallel device.
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							1–48Maintenance and Service Guide
Product Description
4 External monitor 
connectorConnects an external monitor or overhead 
projector.
5 S-Video connector Connects a television, VCR, camcorder, 
or overhead projector.
6 USB connectors (2) Connect USB devices.
7 RJ-11 modem jack Connects the modem cable to an internal 
modem. A modem cable is included with 
internal modem models.
8 RJ-45 network jack Connects the network cable. A network 
cable is not included with the computer.
9 DC power jack Connects any one of the following:
■AC adapter
■Optional automobile power 
adapter/charger
■Optional aircraft power adapter
10 Mono microphone jack Connects a mono microphone, disabling the 
built-in microphone.
11 Stereo speaker/
headphone jackConnects stereo speakers, headphones, 
headset, or television audio.
12 PC Card slot Supports a 32-bit (CardBus) or 16-bit 
PC Card.
13 PC Card eject button Ejects a PC Card from the PC Card slot.
14 MultiBay Accepts MultiBay devices, such as a 
diskette drive, optical drive, hard drive, 
or optional battery pack.
Table 1-7
Rear Panel and Left Side Components (Continued)
Item Component Function
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							Product Description
Maintenance and Service Guide1–49
The computer keyboard components are shown in Figure 1-4 and 
described in Table 1-8.
Figure 1-4. Keyboard Components
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							1–50Maintenance and Service Guide
Product Description
Table 1-8
Keyboard Components
Item Component Function
1
F1 through F12 
function keysPerform preset functions.
2
Num lock key On: Num lock is on and the embedded 
numeric keypad is enabled.
3 Embedded numeric 
keypadConverts keys to numeric keypad.
4 Cursor control keys Move the cursor around the screen.
5Windows 
application keyDisplays a menu when using a Microsoft 
application. The menu is the same one that 
is displayed by pressing the right mouse 
button.
6 Windows logo keys Displays the Windows Start menu.
7
Fn key Used with hotkeys to perform preset hotkey 
functions.
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							Product Description
Maintenance and Service Guide1–51
The computer top components are shown in Figure 1-5 and 
described in Table 1-9.
Figure 1-5. Top Components
Table 1-9
Top Components
Item Component Function
1 Display lid switch Turns off the computer display if the 
computer is closed while on.
2 Power light On: Power is turned on.
Blinking: Computer is in Suspend mode. 
The power light also blinks if a battery pack 
that is the only available power source 
reaches a low-battery condition.
3 Num lock light On: Num lock is on and the embedded 
numeric keypad is enabled.
4 Easy Access 
Buttons (3)Provide quick access to the Internet. Refer 
to the 
Hardware Guide that ships with the 
computer for information about these 
buttons.
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							1–52Maintenance and Service Guide
Product Description
5 Power button Turns on the computer. Use the operating 
system Shut Down command to turn off the 
computer.
6 Digital audio button Launches Windows Media Player to play 
MP3 music.
7 Volume control buttons Adjust the volume of the stereo speakers.
8 Caps lock light On: Caps lock is on.
9 Drive indicator light Turns on when the hard drive, CD-, or 
DVD-ROM drive is accessed.
10 Microphone Allows for audio input.
11 TouchPad Moves the mouse cursor, selects, and 
activates.
12 TouchPad buttons Function like the left and right mouse 
buttons on an external mouse.
13 EasyScroll Scrolls the screen left, right, up, and down.
14 Battery power light On: A battery pack is charging.
Blinking: A battery pack that is the only 
available power source has reached a 
low-battery condition.
15 Power/Suspend light On: Power is turned on.
Off: Power is turned off.
Blinking: Computer is in Suspend mode.
Table 1-9
Top Components (Continued)
Item Component Function
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							Product Description
Maintenance and Service Guide1–53
The external components on the bottom of the computer are 
shown in Figure 1-6 and described in Table 1-10.
Figure 1-6. Bottom Components 
Table 1-10
Bottom Components
Item Component Function
1 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.
2 Connector cover Protects the parallel, external 
monitor, external keyboard/mouse, 
and USB connectors.
3 Docking connector Connects the computer to an 
optional port replicator.
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							1–54Maintenance and Service Guide
Product Description
4 Mini PCI communications 
compartmentContains the mini PCI 
modem card.
5 MultiBay Accepts a diskette drive, optical 
drive, hard drive, or battery pack.
6 MultiBay  release  switch Releases the MultiBay device from 
the connector.
7 Serial number Identifies the computer; needed 
when you call Compaq customer 
support.
8 Memory expansion 
compartmentCovers the memory expansion 
compartment that contains two 
memory expansion slots for 
memory expansion boards.
9 Battery pack release switch Releases the battery pack from 
the battery compartment.
10 Battery bay Accepts an 8-cell lithium ion 
(Li ion) battery pack.
11 Hard drive bay Supports the primary hard drive. 
The hard drive is secured to the 
computer by one screw.
12 Hard drive retention screw Secures the hard drive to the 
computer.
Table 1-10
Bottom Components (Continued)
Item Component Function
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							Product Description
Maintenance and Service Guide1–55
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
■Intel Mobile Pentium 4 processors with SpeedStep 
technology
■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.
ÄCAUTION: To properly ventilate the computer, allow at least a 
3-inch (7.6 cm) clearance on the left and right sides of the 
computer.
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