HP Omnibook 500 Service Manual

							HP Omnibook 500 Product Information 1-5
The following two illustrations show the main external features of the expansion base.
 
 Figure 1-4. Expansion Base — Front View
1. Docking connector.
2. Status panel.
3.  Status panel button.
4.  Speaker (one on each side).
5.  Left plug-in module bay. Can contain a CD-ROM
or DVD drive, floppy disk drive, secondary battery,
or other plug-in module.
6.  CD status light.
7.  CD player power button.8.  CD player controls: previous track, play/pause,
stop, next track, volume.
9.  Right plug-in module bay. Used with CD player
controls.
10. Module eject latch (one on each side).
11. Undock  switch.
12. Audio jacks: audio out (headphones), external
microphone, audio line in.
13. Kensington lock slot (security connector).
14. Emergency undock latch. 
						

							1-6 Product Information HP Omnibook 500
 
 Figure 1-5. Expansion Base — Back View
15. Universal serial bus ports (USB).
16. S-video (TV out) port.
17. Serial port (COM1).
18. Parallel port (LPT1). Use this port for a parallel
printer or other parallel device.
19. External monitor port.20. PS/2 mouse port.
21. PS/2 keyboard port.
22. LAN port (works only if the computer has a built-in
LAN port).
23. AC adapter jack. 
						

							HP Omnibook 500 Product Information 1-7
Operation
This section gives an overview of the operation of the computer and expansion base.
Turning the Computer On and Off
You can start and stop the computer using its blue sleep button. However, at times you may want to
use other methods to start or stop the computer, depending on power considerations, types of active
connections, and start-up time.
  Table 1-3. Activating Power Modes
Power modeTo enter this modeTo turn on again
On mode
Power mode status light is green.Press the blue sleep button.
Standby mode
Saves significant power.
Turns off the display and other components.
Maintains current session in SDRAM.
Restarts quickly.
Restores network connections.
Power mode status light is amber.Press blue sleep button
–or–
click Start, Shutdown, Standby
–or–
allow timeout.Press the blue
sleep button to
display your current
session.
Hibernate mode
Saves maximum power.
Saves current session to disk, then shuts down.
Restores network connections.
Power mode status light is off.Press Fn+F12
–or–
Click Start, Hibernate
(W indows 98)
–or–
Click Start, Shut Down, Hibernate
(W indows 2000)
–or–
allow timeout.Press the blue
sleep button to
restart and restore
your previous
session.
Shut down (off)
Saves maximum power.
Turns off without saving current session.
At startup, resets everything, starts a new session,
and restores network connections.
Power mode status light is off.Click Start, Shut Down, Shut down
(recommended)
–or–
slide the power button.Press the blue
sleep button to
restart with a new
session. 
						

							1-8 Product Information HP Omnibook 500
Checking the Status of the Computer
The main status lights on the front of the computer report the computer’s power mode and hard drive
activity, and the status of the main battery.
  Table 1-4. Main Status Lights (front of computer)
           Meaning
Power mode
On: the computer is on (even if the display is off).
Blinking: the computer is in Standby mode. (Steady amber light on some models.)
Off: computer is off or in Hibernate mode.
Hard disk drive activity
Blue: the computer is accessing the hard disk drive.
Main battery charge status
Green: the AC adapter is connected and the battery is fully charged.
Amber: the AC adapter is connected and the battery is charging.
Blinking. the AC adapter is connected and the battery is missing or has a fault.
(Steady red light on some models.)
Off: the AC adapter is not connected.
The keyboard status lights indicate the status of the keyboard locks.
  Table 1-5. Keyboard Status Lights
Meaning
Caps Lock
Caps Lock is active.
Num Lock
Num Lock is active (Fn+F9). (The Keypad Lock must also be on to use the
embedded keypad.)
Keypad Lock
The embedded keypad is active (Fn+F8). Num Lock must also be on for the
numeric keys—otherwise, cursor control is active.
Scroll Lock
Scroll Lock is active (Fn+F10).
Battery Status
Every main battery and secondary battery plug-in module has five lights on its back (connector) side
that indicate its charge level. To view these lights, press the pad next to them. The number of lights
that turn on indicates the battery’s charge. 
						

							HP Omnibook 500 Product Information 1-9
Using Fn Hot Keys
The combination of the Fn key plus another key creates a 
hot key—a shortcut key sequence—for
various system controls. To use a hot key, press 
and hold Fn, press the appropriate second key, then
release both keys.
External PS/2 keyboards support only Fn+F5, Fn+F7, and Fn+F12. To use these, press and hold left
CTRL+left ALT, press the appropriate second key, then release both keys.
External USB keyboards do not support Fn hot keys.
  Table 1-6. Fn Hot Keys
Hot KeyEffect
Fn+F1 Decreases the display brightness.
Fn+F2 Increases the display brightness.
Fn+F5 Toggles among the built-in display, an external display, and simultaneous display on
both.
Fn+F7 Audio mute.
Fn+F8 Toggles the built-in keypad on and off. Does not affect an external keyboard. If Num
Lock is on, then the numeric functions are active; otherwise, cursor control is active (as
marked on an external keyboard).
Fn+F9 Toggles Num Lock on and off.
Fn+F10 Toggles Scroll Lock on and off.
Fn+F11 Pause.
Fn+F12 Enters Hibernate mode.
Fn+HOME Prints screen.
Fn+UP ARROW * Increases sound volume.
Fn+DOW N ARROW * Decreases sound volume.
* Only if marked on the ARROW  keys. 
						

							1-10 Product Information HP Omnibook 500
Resetting the Omnibook
Occasionally, Windows or the computer may stop responding, so that you cannot turn the computer
off. If this happens, try the following in the order listed:
 
• If possible, shut down Windows: press CTRL+ALT+DEL, then click Shut Down. Press the blue
sleep button to restart.
 
• Slide and hold the power button for four seconds, until the display shuts down, then press the blue
sleep button to restart.
 
• Use a straightened paper clip to press the system-off switch on the left side of the computer. Press
the blue sleep button to restart.
 
• Undock the computer if docked, unplug the AC adapter, remove the main battery, then insert a
straightened paper clip into the computer’s system-off switch. Press the blue sleep button to
restart.
 
  Figure 1-6. Resetting the Computer
Resetting an Expansion Base
To reset an expansion base—and the computer, if docked (see the following page)—insert a
straightened paper clip into the reset hole on the bottom of the expansion base. You can also reset the
expansion base by undocking the computer and removing all AC and battery power from the base.
  Note
 
To boot from a CD-ROM or DVD drive in the expansion base, insert a bootable CD (such as the
Recovery CD) into the drive, then restart the computer. Press ESC when the HP logo appears
during reboot, then select the CD-ROM/DVD drive as the temporary boot device. 
						

							HP Omnibook 500 Product Information 1-11
Docking and Undocking the Computer
You can dock or undock the computer in any power state: on, off, Standby mode, or Hibernate mode.
Make sure, however, that the computer is not entering or resuming from Standby or Hibernate mode
when you dock or undock, or the computer could lock up.
Docking the Computer
By default, the computer automatically turns on when you dock it. If you have trouble inserting the
computer or the docking latches stick, use the emergency undock latch.
 1.
 
Optional: plug the AC adapter into the expansion base.
 2.
 Insert the back of the computer into the expansion base, then lower the front end into the base and
press down firmly until it clicks into place.
 
  Figure 1-7. Docking the Computer 
						

							1-12 Product Information HP Omnibook 500
Undocking the Computer
 1.
 Press the undock switch. (You can use the undock switch when the computer is on, off, or in
Standby or Hibernate mode.)
 –or–
 Click Start, Eject PC.
 
  Figure 1-8. Undocking the Computer
 You may need to wait 10 seconds or more for the computer to undock—the computer may not
respond while it is updating its configuration.
 2.
 If the computer will not undock using the undock switch or Start menu, use the emergency
undock latch: slide the button down, then move the entire latch forward.
 
  Figure 1-9. Manually Undocking the Computer 
						

							HP Omnibook 500 Product Information 1-13
Connecting a Floppy Disk Drive
When needed, you can connect the floppy disk drive to one of the computer’s USB ports.
 
• Connect the USB floppy drive cable directly to the floppy drive and to the USB port.
 You cannot use the USB floppy cable to connect to any other type of drive module, such as a
CD-ROM or DVD drive. The USB cable is for floppy drives only.
 
  Figure 1-10. Connecting a Floppy Disk Drive 
						

							1-14 Product Information HP Omnibook 500
Specifications
The following tables list the specifications for the computer and its accessories. These are subject to
change: for the latest versions, see the HP Notebook web site (www.hp.com/notebooks).
 Table 1-7. Omnibook 500 Series Specifications
Physical Attributes Computer:
Size: 278 × 222 × 25 mm (10.9 × 8.7 × 1.0 in).
W eight: 1.5 kg (3.4 lb) minimum, depending on model.
Magnesium casing with rubberized grip surfaces.
Computer docked in expansion base:
Size: 298 × 257 × 45 mm (11.7 × 10.1 × 1.8 in).
W eight: 2.4 kg (5.4 lb) minimum, depending on model.
Processor and
Bus Architecture600- to 750-MHz Intel Mobile Pentium III processor with Speed Step technology with
256-KB four-way set-associative L2 cache.
–or–
500- to 600-MHz Intel Celeron processor with 128-KB four-way set-associative L2
cache.
1.35/1.1-V (Pentium III) or 1.35-V (Celeron) core, 2.5-V external, low-power
processor.
32-KB (16-KB instruction, 16-KB data) L1 cache.
32-bit PCI bus.
Graphics12.1-inch XGA active-matrix (TFT) display (1024 × 768 × 16M colors).
Zoomed Video support for PC Card slot.
3D and OpenGL graphics support.
Celeron models:
ATI Mobility M graphics accelerator with 4-MB display RAM, 2x AGP graphics
capability.
Pentium III models:
ATI Mobility M1 graphics accelerator with 8-MB display RAM, 2x AGP graphics
capability.
PowerRechargeable lithium-ion battery (11.1 or 14.8 Vdc) with LED charge-level gauge.
Battery life (single battery): over 4 hours typical (varies with model and usage).
Fast battery recharge: approximately 2 hours.
Low-battery warning.
Suspend/resume capability.
Universal AC adapter: 100–240 Vac (50/60 Hz) input, 19 Vdc output, 60–65 W .
Optional secondary battery available for expansion base module bays.
Mass Storage Computer:
7.5- to 30-GB removable hard disk drive.
1.44-MB floppy drive module.
Expansion base:
Two bays for plug-in drive modules.
Optional drive modules available.
SDRAMTwo slots for SDRAM expansion (SODIMM, PC100 or higher) up to 512 MB.
64-, 128-, or 256-MB SDRAM installed in system SDRAM slot under keyboard.
100-MHz SDRAM bus.