HP Omnibook 500 Service Manual

							HP Omnibook 500 Product Information 1-15
Audio System Computer:
Built-in speaker.
3D-enhanced PCI bus audio with Zoomed Video support.
Built-in microphone.
Separate audio-off button with indicator light.
Headphone-out and microphone-in.
Expansion base:
CD player (can play with or without computer docked).
Stereo sound via three built-in speakers.
Analog pass-through from the computer.
Headphone-out, microphone-in, and audio line-in.
Keyboard and
Pointing Device84/85/87-key touch-type QW ERTY keyboard with 101/102 key emulation.
Embedded numeric keypad.
12 function (Fn) keys.
Two user-programmable One-Touch buttons.
Pointing stick (TrackPoint technology licensed from IBM).
Left and right click buttons, center scroll button.
LAN (3Com)Ethernet 10Base-T (10 Mbps) and 100Base-TX (100 Mbps) support.
Supports wake-on-LAN, fast IP, DMI, dRMON.
MBA (Managed Boot Agent) support for PXE/BINL, BOOTP, NCP/IPX, DHCP.
Modem (3Com,
US Robotics)Data speed: 56 Kbps (V.90) maximum.
Fax speed: 14.4 Kbps, Class 1 and 2.
Modulation: V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34, V.90, X2, Bell 103,
Bell 212A.
Synchronous transfer: V.80.
Compression: V.42bis, MNP5.
Error correction: V.42, MNP2-4.
Fax: Group 3 fax, Class 1. V.17, V.27ter, V.29, V.21 channel 2.
Local modem adapter provided for non-U.S. regions.
802.11 Wireless LANRadio: IEEE 802.11b compliant, ISM frequency band, Direct Sequence Spread
Spectrum.
Operating frequency: within 2.4–2.497 GHz, depending on country (US, Canada,
ETSI, Japan).
Channels: up to 13 channels (22 MHz bandwidth) that can overlap and are
dependent upon the country configuration.
Data rate: 1, 2, 5.5, or 11 Mbps.
RF output: 15 dBm typical (approx. 30 mW ), 16 dBm max (approx. 40 mW ).
Sensitivity: –84 dBm.
Range: up to 100 m (300 ft) or more, depending on environment and conditions.
On-off button with power indicator.
USB interface.
Input/Output Computer:
Two universal serial bus (USB) ports.
15-pin VGA video-out with DDC support. (Resolution up to 1600 × 1200 × 64K or
16M colors. Refresh rate of 60 to 100 Hz, depending on resolution and color depth.
Dual display.)
4-Mbps IrDA-compliant infrared port.
Expansion base:
Two universal serial bus (USB) ports.
9-pin, 115,200-bps serial (16550 UART).
25-pin bi-directional ECP/EPP parallel.
15-pin VGA video-out with DDC support. (Resolution up to 1600 × 1200 × 64K or
16M colors. Refresh rate of 60 to 100 Hz, depending on resolution and color depth.
Dual display.)
S-video (TV out).
PS/2 keyboard and PS/2 mouse.
Expandability Computer:
One Type II 16-/32-bit PC Card slot (3.3 V and 5 V support).
CardBus enabled, Zoomed Video support.
Expansion base:
Two plug-in module bays for accessory modules. 
						

							1-16 Product Information HP Omnibook 500
Security FeaturesUser and administrator passwords.
System, hard drive, and docking passwords.
PC identification displayed at boot.
DMI-accessible electronic serial number.
Kensington MicroSaver lock slot.
Environmental Limits
Operating temperature: 5 to 35 
°C (41 to 95 
°F).
Operating humidity: 20 to 90 percent RH, 5 to 35 
°C (41 to 95 
°F).
Operating altitude: up to 3000 m (10,000 ft) at 25 
°C (77 
°F).
Storage temperature: –20 to 50 
°C (–4 to 122 
°F).
Major ICs Computer:
CPU: Intel Mobile Pentium III or Celeron processor.
South Bridge: PIIX4M.
Display controller: ATI Mobility M or M1.
Audio controller: ESS Maestro-3E and ESS ES1921.
CardBus controller: TI PCI 1410.
Keyboard/embedded controller: National NS87570.
Super I/O: National NS97338.
Expansion base:
Embedded controller: National NS87570.
PCI IDE controller: CMD PCI-648.
Audio controller: OZ163. 
						

							HP Omnibook 500 Product Information 1-17
 Table 1-8. Omnibook 500 Series Accessories
AccessoryDescriptionOmnibook
500
Compat.
6000
Compat.
900B
Memory
F1457B 64-MB SDRAM module (PC100)
•••
F1457C 64-MB SDRAM module (PC133)
•••
F1622B 128-MB SDRAM module (PC100)
•••
F1622C 128-MB SDRAM module (PC133)
•••
F1654A 256-MB SDRAM module (PC100)
•••
F1654C 256-MB SDRAM module (PC133)
•••
Hard Drives
0950-4030 7.5-GB hard disk drive
•
0950-4011 7.5-GB hard disk drive
•
0950-3934 10-GB hard disk drive
•
0950-3985 10-GB hard disk drive
•
0950-3935 20-GB hard disk drive
•
0950-4162 30-GB hard disk drive
•
Multimedia Expansion Base
F2096B Multimedia expansion base
•
Plug-in Modules
F2008A Floppy disk drive cable (parallel)
••
F2009A Zip drive module
••
F2013A Floppy disk drive module
••
F2015A DVD drive module
••
F2017A CD-ROM drive module
••
F2018A Second hard drive module with 18-GB hard drive
••
F2018B Second hard drive module with 20-GB hard drive
••
F2018C Second hard drive module with 30-GB hard drive
••
F2022A LS-120 drive module
••
F2026A CD-RW  drive module
••
F2101A USB floppy disk drive cable
•
F2107A DVD-ROM/CD-RW  drive module
••
Power Options
F1454A 60W  AC adapter
•••
F1455A 75W  auto/airline power adapter (12 V)
•••
F1781A 60W  Ultraslim AC adapter
•••
F2011A External lithium-ion battery charger for F2014A
••
F2014A Lithium-ion secondary battery
••
F2098A Main battery (11.1 V, 6-cell)
• 
						

							1-18 Product Information HP Omnibook 500
AccessoryDescriptionOmnibook
500
Compat.
6000
Compat.
900B
8120-6312
8120-6313
8120-6314
8120-6316
8120-6317
8120-8367
8120-8373
8120-8452
8120-8699Replacement power cord (Australia)
Replacement power cord (U.S./Canada/Taiwan)
Replacement power cord (Europe)
Replacement power cord (Japan)
Replacement power cord (India/South Africa)
Replacement power cord (Argentina)
Replacement power cord (China)
Replacement power cord (Chile)
Replacement power cord (UK [EPSR]
Hong Kong/Singapore)•••
PC Cards
F1623A 10/100-Mbps Ethernet + 56-Kbps modem PC
Card by Xircom•••
F1625A 56-Kbps global modem PC Card by Xircom
•••
F1626B 10/100-Mbps Ethernet PC Card by 3Com
•••
F1627A 56-Kbps U.S. modem PC Card by Xircom
•••
F1782A 10/100-Mbps Ethernet + 56-Kbps modem PC
Card by 3Com•••
F1985A 10/100-Mbps USB-Ethernet adapter by 3Com
•••
F2135B 802.11b wireless LAN access point for use
with F2136A•••
F2136A 802.11b wireless LAN PC Card
•••
F2138A HP/Sierra W ireless Air Card 300 CDPD PC Card
•••
F2196A Bluetooth PC Card by 3Com
••• 
						

							HP Omnibook 500 Product Information 1-19
Internal Design
The motherboard PCA is the central component of the computer’s design, and plays a role in virtually
all system functions. Most components connect directly to the motherboard.
The following figure shows the connections among the replaceable components in the computer and
expansion base. In addition, Table 1-9 on page 1-20 lists the roles that these components play in the
functional subsystems of the computer and expansion base.
 
 Figure 1-11. Replaceable Component DiagramMotherboard
Heatsink/fanDisplay
AssemblySwitchboard
PCAMini-PCI
Card
Top Case
Expansion
SDRAM
Module
Battery
Keyboard (with
pointing stick)System SDRAM
ModulePC Card
Speaker Hard Disk Drive
Expansion Base
Plug-in Module Plug-in ModuleHDD/LED
Flex Cable
(1)
(1) W ireless models only 
						

							1-20 Product Information HP Omnibook 500
 Table 1-9. Functional Structure
Function Components Used Component Roles
BootupMotherboard
Hard disk drive
Removable deviceMain processor, primary system circuitry.
First source of disk-based startup code.
Second source of disk-based startup code.
ProcessorMotherboard Main processor, numeric data processor, L1 and L2 cache, primary system
circuitry.
MemoryMotherboard
SDRAM modulesVideo RAM.
Changeable SDRAM (2 slots).
PowerMain battery
Motherboard
Switchboard PCA
Backup battery
CMOS battery
Expansion base
AC adapterPower storage.
AC adapter socket, power switch, lid switch, system-off switch, power supply,
power control circuitry.
Sleep switch.
Provides short-term power to maintain memory while swapping main battery.
Maintains system data stored in CMOS RAM.
AC adapter socket, system-off switch, power supply, power control circuitry.
AC-to-DC converter.
DisplayMotherboard
Display assemblyPCMCIA/Zoomed Video controller, display drivers, LVDS processing,
display/graphics controller, video RAM.
Display output, backlight, power converter for backlight.
Hard diskMotherboard
HDD/LED flex cable
Hard disk driveHard disk controller.
Hard disk signal pass-through.
Hard disk mechanism.
KeyboardMotherboard
Keyboard
Switchboard PCAKeyboard BIOS, keyboard controller.
Key switches.
One-Touch switches.
PointerMotherboard
Keyboard
Top caseKeyboard BIOS, pointing stick controller (PS/2 output), keyboard controller.
Pointing stick sensor.
Click buttons, scroll button.
AudioMotherboard
Bottom case
Expansion baseAudio controller, audio decoder, speaker amplifier, Zoomed Video controller,
microphone, external audio jacks, headphone amplifier, audio-off switch.
Speaker.
CD player, audio circuitry, speakers.
StatusMotherboard
Switchboard PCA
HDD/LED flex cable
Top case
Expansion baseLED circuitry, keyboard controller.
Keyboard LEDs.
Main status LEDs.
Audio-off LED.
Status panel.
SerialMotherboard
Expansion baseI/O controller.
Serial connector.
ParallelMotherboard
Expansion baseI/O controller.
Parallel connector.
InfraredMotherboard I/O controller, infrared transmitter/receiver.
WirelessDisplay assembly
Motherboard
Switchboard PCARadio PCA, circuitry, and antennas, on-off button, and indicator light.
I/O controller.
Power/signal pass-through.
PS/2 portsMotherboard
Expansion baseKeyboard controller.
PS/2 connectors.
USBMotherboard
Expansion baseBus controller (South Bridge), USB connectors, overload switch.
USB connectors, overload switch.
DockingMotherboard
Expansion baseDocking logic, docking connector.
Docking connector, undock switch, emergency undock latch.
PC CardMotherboard PC Card controller, PC Card connector. 
						

							HP Omnibook 500 Removal and Replacement 2-1
2 
Removal and Replacement
This chapter tells you how to remove and replace the computer’s removable components and
assemblies. The items marked by 
• in the following table are user-replaceable.
 Table 2-1. Removal Cross-Reference
 
Battery, backup (page 2-34).
Battery, CMOS (page 2-34).
 
• Battery, main (page 2-4).
Cable, hard drive/LED flex (page 2-34).
 
• Card, mini-PCI (page 2-14).
Case, bottom (page 2-25).
Case, top (page 2-23).
 
• Cover, SDRAM (page 2-17).
 
• Covers, display hinge (page 2-17).
 
• Covers, display screw (page 2-17).
 
• Cover, Trackpoint (page 2-17).
Display assembly (page 2-18).
Doors, docking (page 2-31).
 
• Drive, hard disk (page 2-6). 
 
• Feet, rubber (page 2-17).
Guide, hard drive (page 2-34).
Heatsink/fan (page 2-21).
 
• Keyboard (page 2-10).
 
• Module, plug-in (page 2-5).
 
• Module, SDRAM (page 2-12).
Panel, audio/PCMCIA (page 2-35).
Panel, mini-PCI (page 2-35).
 
• Panel, power button (page 2-9).
PCA, motherboard (page 2-25).
 
• PCA, switchboard (page 2-16).
Plate, EMI (page 2-35).
Speaker (page 2-35).
 
• Tray, hard disk drive (page 2-7).
  Caution
 
Always provide proper grounding when performing repairs. W ithout proper
grounding, an electrostatic discharge can damage the computer or
expansion base and their components.
 
Notes
 
Reassembly steps are the reverse of the removal/disassembly steps. Reassembly notes are
included at the end of each removal procedure.
 
Symbols like this throughout this chapter show approximate full-size screw outlines. You
can use these to verify the sizes of screws before you install them. Installing a wrong-size screw
can damage the unit. (The symbol at the left represents an M2.5×5mm T-head screw.) 
						

							2-2 Removal and Replacement HP Omnibook 500
Disassembly Flowchart
The following diagram shows the general “path” you will use in disassembling the computer to access
components.
 
* Also remove these components when removing the motherboard or bottom case.
‡ Also remove this component when replacing the top case.
 Figure 2-1. Disassembly FlowStart
Main battery, AC adapter
Power button panel
Keyboard
Display assembly
Top case
Motherboard or
bottom case 
Hard drive/LED flex cable
 Backup battery
 Audio/PCMCIA panel
 Hard drive guide
 Mini-PCI panel  Mini-PCI card
 Speaker
 System SDRAM module*
 Heatsink/fan* Switchboard PCA* 
‡
If removing only
the display
 Expansion SDRAM module*
 Hard disk drive*
Wireless models only:
Switchboard PCA 
						

							HP Omnibook 500 Removal and Replacement 2-3
 Table 2-2. Required Equipment
 
• #0 Phillips screwdriver, preferably magnetized.
 
• Small flat-blade screwdriver.
 Table 2-3. Recommended Screw Torques
Screw Thread SizeTorque (cm-kgf)Torque (in-lbf)
M2 1.3 – 1.8 1.1 – 1.5
M3 3.0 – 3.5 2.6 – 3.0
  Caution
 
Be careful not to overtighten screws that go directly into magnesium components, or you could
strip the threads in the magnesium. 
						

							2-4 Removal and Replacement HP Omnibook 500
Removing the Main Battery
(User-Replaceable)
One or two plug-in modules can be inserted in the module bays in the expansion base. The computer
itself has no module bays.
Required Equipment
 
• None.
Removal Procedure
 
• Slide the battery’s release latch, then lift the battery out of its compartment.
 
 Figure 2-2. Removing the Main Battery
Reassembly Note
 
• Insert the front end of the battery into the battery compartment, then press the back end in until it
clicks into place.