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ii zt1100/xz200 and xt1500 Series
Troubleshooting and Self-Repair Guide
Notice
This manual and any examples contained herein are provided “as is” and are subject to change without
notice. Hewlett-Packard Company makes no warranty of any kind with regard to this manual,
including, but not limited to, the implied warranties of merchantability and fitness for a particular
purpose. Hewlett-Packard Co. shall not be liable for any errors or for incidental or consequential
damages in connection with the furnishing, performance, or use of this manual or the examples herein.
Consumer transactions in Australia and the United Kingdom: The above disclaimers and limitations
shall not apply to Consumer transactions in Australia and the United Kingdom and shall not affect the
statutory rights of Consumers.
© Copyright Hewlett-Packard Company 2000–2002. All rights reserved. Reproduction, adaptation, or
translation of this manual is prohibited without prior written permission of Hewlett-Packard Company,
except as allowed under the copyright laws.
The programs that control this product are copyrighted and all rights are reserved. Reproduction,
adaptation, or translation of those programs without prior written permission of Hewlett-Packard Co.
is also prohibited.
Portions of the programs that control this product may also be copyrighted by Microsoft Corporation,
SystemSoft Corp., Insyde Software Corporation, S3 Graphics Incorporated, and Adobe Systems
Incorporated. See the individual programs for additional copyright notices.
This product incorporates copyright protection technology that is protected by method claims of
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other rights owners. Use of this copyright protection technology must be authorized by Macrovision
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by Macrovision Corporation. Reverse engineering or disassembly is prohibited.
Microsoft®, MS-DOS®, and Windows® are U.S. registered trademarks of Microsoft Corporation.
Pentium® and the Intel Inside logo are U.S. registered trademarks and Celeron™ and SpeedStep™
are U.S. trademarks of Intel Corporation. Adobe® and Acrobat® are trademarks of Adobe Systems
Incorporated.
All certifications may not be completed at product introduction.
This equipment is subject to FCC rules. It will comply with the appropriate FCC rules before final
delivery to the buyer.
Hewlett-Packard Company
HP Notebook Customer Care
1070 NE Circle Blvd., MS 425E
Corvallis, OR 97330, U.S.A.
Edition History
Edition 1.............................April 2002

zt1100/xz200 and xt1500 Series iii
Troubleshooting and Self-Repair Guide
Technology Codes
HP does not change the name of a product every time the product’s technology changes. While this
helps ensure continuing market momentum for HP products, it complicates technology deployment
and support processes.
To help solve this problem, HP has added a technology code to the serial number of each of its
products. Since the BIOS must be matched to the notebook’s hardware, the same code is used for the
BIOS and the hardware. This manual refers to technology code differences where applicable.
The table below shows the technology codes and the changes they signify for the products. Before
downloading software or drivers or performing repairs, note the technology code for the HP notebook
model.
Note that the first two characters of the BIOS ID (for example, IC.M1.02) indicate the hardware
technology. You can also determine the BIOS ID using the BIOS configuration utility, or by pressing
Esc during the boot process when the HP logo appears.
This manual contains service information for products with the following technology code.
Technology code Product name Details
IC Pavilion zt1100/xz200 series
Omnibook xt1500 series Intel P4-M based platform supported with Via chipset and S3 integrated graphics.

iv zt1100/xz200 and xt1500 Series
Troubleshooting and Self-Repair Guide
Contents
Product Information.........................................................................................................7
Notebook Features ........................................................................................................................... 7
Operating the Notebook.................................................................................................................12
Turning the Notebook On and Off ..........................................................................................12
Resetting the Notebook........................................................................................................... 13
Changing the Boot Device ......................................................................................................13
Hardware Specifications ................................................................................................................ 14
Troubleshooting and Diagnostics...................................................................................16
Audio Problems.......................................................................................................................16
CD and DVD Problems...........................................................................................................17
Display Problems ....................................................................................................................18
Floppy Disk Drive Problems................................................................................................... 20
Hard Disk Drive Problems...................................................................................................... 20
Heat Problems .........................................................................................................................21
Infrared Problems.................................................................................................................... 21
Keyboard and Pointing Device Problems................................................................................ 21
LAN Problems......................................................................................................................... 22
Memory Problems...................................................................................................................23
Modem Problems ....................................................................................................................23
One-Touch Button Problems................................................................................................... 25
Parallel and USB Problems..................................................................................................... 26
PC Card (PCMCIA) Problems ................................................................................................ 27
Performance Problems ............................................................................................................ 27
Power and Battery Problems................................................................................................... 28
Printing Problems.................................................................................................................... 30
SD Cards and MMC Cards...................................................................................................... 30
Startup Problems .....................................................................................................................30
Standby and Resume Problems...............................................................................................31
Wireless Problems................................................................................................................... 31
Using the e-Diagtools Diagnostic Tests......................................................................................... 33
Using the BIOS Configuration Utility............................................................................................34
Reinstalling and Updating Software..............................................................................37
Recovering the Factory Software Installation................................................................................37
Updating the Notebook BIOS........................................................................................................ 38
Updating the Windows Drivers......................................................................................................38
Removing and Replacing Parts......................................................................................39
Removing the Battery ....................................................................................................................40
Removing the Optical Drive Module............................................................................................. 41
Removing the Hard Disk Drive......................................................................................................42
Removing the Mini-PCI Card........................................................................................................ 44
Removing the Keyboard Cover...................................................................................................... 46
Removing the Keyboard.................................................................................................................48
Removing an SDRAM Module...................................................................................................... 50
Removing an Expansion SDRAM Module............................................................................. 50
Removing the System SDRAM Module................................................................................. 51
Removing the Speakers.................................................................................................................. 52
Removing the Fan..........................................................................................................................53
Replacing Small Parts and Accessories.......................................................................................... 55

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Reference Information....................................................................................................57
Password Removal Policy..............................................................................................................57
Hewlett-Packard Display Quality Statement..................................................................................57
Figures
Figure 1. Front View...............................................................................................................................7
Figure 2. Back View ...............................................................................................................................8
Figure 3. Bottom View............................................................................................................................9
Figure 4. Main Status Lights.................................................................................................................10
Figure 5. Keyboard Status Lights..........................................................................................................11
Figure 6. Multimedia Buttons and Status Panel (selected models).......................................................11
Figure 7. Pressing the Reset Switch......................................................................................................13
Figure 8. Removing the Battery............................................................................................................40
Figure 9. Releasing the Plug-in Module................................................................................................41
Figure 10. Removing the Hard Disk Drive ...........................................................................................42
Figure 11. Removing the Hard Disk Tray.............................................................................................43
Figure 12. Removing the Mini-PCI Card..............................................................................................45
Figure 13. Removing the Keyboard Cover Retaining Screws...............................................................46
Figure 14. Removing the Keyboard Cover ...........................................................................................47
Figure 15. Loosening the Keyboard Retaining Screws.........................................................................48
Figure 16. Disconnecting the Keyboard................................................................................................49
Figure 17. Removing an Expansion SDRAM Module..........................................................................50
Figure 18. Installing an Expansion SDRAM Module...........................................................................51
Figure 19. Removing the System SDRAM Module..............................................................................51
Figure 20. Removing the Speakers........................................................................................................52
Figure 21. Removing the Fan................................................................................................................54
Tables
Table 1. Battery Replacement Part Numbers........................................................................................40
Table 2. Optical Drive Module Replacement Part Numbers.................................................................41
Table 3. Hard Disk Drive Replacement Part Numbers .........................................................................42
Table 4. Mini-PCI Card Replacement Part Numbers............................................................................44
Table 5. Keyboard Cover Replacement Part Numbers .........................................................................46
Table 6. Keyboard Replacement Part Numbers....................................................................................48
Table 7. SDRAM Module Replacement Part Numbers ........................................................................50
Table 8. Speaker Replacement Part Numbers.......................................................................................52
Table 9. Fan Replacement Part Numbers..............................................................................................53
Table 10. Replacing Small Parts...........................................................................................................55
Table 11. Pavilion zt1100/xz200 and Omnibook xt1500 Series Accessories.......................................56

zt1100/xz200 and xt1500 Series Product Information 7
Troubleshooting and Self-Repair Guide
Product Information
This section introduces the notebook and its components, and briefly describes basic operation.
Notebook Features
Figure 1. Front View
1. One-Touch buttons (programmable).
2. Power button.
3. Keyboard status lights: Caps Lock, Num Lock,
CD/DVD drive activity.
4. Touch pad/scroll pad on-off button (with on-off
indicators on either side).
5. Left and right click buttons.
6. Touch pad.
7. Scroll pad.
8. Volume controls (selected models).
9. Mute button and indicator light (selected models).
10. Removable DVD or DVD/CD-RW drive.
11. CD/DVD eject button.
12. Speaker (one on each side).
13. Latch.
14. Built-in microphone.

8 Product Information zt1100/xz200 and xt1500 Series
Troubleshooting and Self-Repair Guide
Figure 2. Back View
15. AC adapter jack.
16. Parallel port (LPT1) (colored burgundy).
17. External monitor (VGA) port (colored blue).
18. Universal serial bus (USB) ports (2).
19. S-video (TV out) port (colored yellow).
20. Reset switch.
21. Kensington lock slot (security connector).
22. LAN port and indicators.
23. Modem.
24. IEEE 1394 connector.
25. SD-MMC Card slot.
26. PC Card slot (Type II).
27. PC Card eject button.
28. Hard disk drive.
29. Wireless on-off button and indicator light
(selected models).
30. External microphone jack (colored pink).
31. Headphones jack (colored green).

zt1100/xz200 and xt1500 Series Product Information 9
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Figure 3. Bottom View
32. Infrared port (selected models).
33. Battery.
34. CD/DVD drive latch.
35. RAM cover.
36. Battery latch.
37. Docking port.
38. Mini-PCI cover (no user-
replaceable parts inside).
39. Hard disk drive retaining screws.

10 Product Information zt1100/xz200 and xt1500 Series
Troubleshooting and Self-Repair Guide
Figure 4. Main Status Lights
1. Hard disk drive activity.
• On: the notebook is accessing the hard disk drive.
2. Power mode.
• Green: the notebook is on (even if the display is off).
• Amber: the notebook is on standby.
• Off: the notebook is off or in hibernation.
3. 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.
• Red: the AC adapter is connected and the battery has a fault.
• Off: the AC adapter is not connected or the battery is missing.

zt1100/xz200 and xt1500 Series Product Information 11
Troubleshooting and Self-Repair Guide
Figure 5. Keyboard Status Lights
1. Caps Lock. Caps Lock is active.
2. Num Lock. Num Lock is active. (The Keypad Lock must also be on to use the
embedded keypad.)
3. CD/DVD drive activity. The drive is active.
Figure 6. Multimedia Buttons and Status Panel (selected models)
1. MP3 player launch button.
2. Previous track button.
3. Next track button.
4. Status panel button.
5. Status panel.
6. Play/Pause button.
7. Stop button.
8. Multimedia power switch and
indicator light.

12 Product Information zt1100/xz200 and xt1500 Series
Troubleshooting and Self-Repair Guide
Operating the Notebook
Note
This manual describes the notebook in its original factory configuration, with all settings at their
default values.
Turning the Notebook On and Off
Power mode To enter this mode To turn on again
On
Power mode status light is green. Press the power button.
Standby
Maintains current session in RAM.
Turns off the display and other components.
Saves significant power.
Restarts quickly.
Restores network connections.
Power mode status light is amber.
Click Start, Turn Off Computer,
Stand By.
–or–
Press the power button.
–or–
Allow timeout.
Press the power button to
quickly resume your
session.
Hibernation
Saves current session to disk, then turns off.
Saves maximum power.
Restores network connections.
Power mode status light is off.
Click Start, Turn Off Computer,
then press and hold Shift and
click Hibernate.
–or–
Allow timeout.
Press the power button to
resume your session.
Turn off
Turns off without saving current session.
Saves maximum power.
At startup, resets everything, and starts a new
session.
Power mode status light is off.
Click Start, Turn Off Computer,
Turn Off.
–or–
Press and hold the power
button for four seconds (only
if the Start menu procedure
doesn’t work).
Press the power button to
start with a new session.

zt1100/xz200 and xt1500 Series Product Information 13
Troubleshooting and Self-Repair Guide
Resetting the Notebook
If Windows or the notebook stops responding and you cannot turn the notebook off, try the following
in the order listed. Press the power button to restart.
• If possible, restart or turn off the notebook from within Windows: click Start, Turn Off Computer,
Restart (or Turn Off).
• Press Ctrl+Alt+Del, then click Shut Down, Restart (or Turn Off).
• Press and hold the power button for about four seconds.
• Use a pen or straightened paper clip to press the reset switch on the back of the notebook.
Figure 7. Pressing the Reset Switch
Changing the Boot Device
The notebook normally boots from its internal hard disk. You can also boot the notebook from an
external USB floppy disk drive (optional accessory), the CD/DVD drive, or a local area network
(LAN).
1. Restart the notebook: click Start, Turn Off Computer, Restart.
2. When the HP logo appears, press Esc to display the Boot menu.
3. Use the arrow keys to select the boot device, and press Enter.
If you want to boot from a specific device whenever it is present, change the boot order using the
BIOS configuration utility—see “Using the BIOS Configuration Utility”on page 34.

14 Product Information zt1100/xz200 and xt1500 Series
Troubleshooting and Self-Repair Guide
Hardware Specifications
The specifications shown below are subject to change. For the latest specifications, see the HP
Notebook web site (www.hp.com/notebooks).
Physical Attributes Dimensions:
14.1-in models: 318 ×273 mm (12.5 ×10.75 in).
15-in models: 330 ×278.3 mm (12.99 ×10.94 in).
Thickness varies across unit.
Weight varies with configuration, vendor components, and manufacturing options and
processes. Minimum weight (14.1-in model): 2.7 kg (5.9 lb).
Processor and
Bus Architecture Intel Mobile Pentium 4 processor (starting at 1.5, 1.6, 1.7, 1.8 MHz and higher) with
SpeedStep technology.
1.6-V core, 1.3-V external, low-power processor.
32-bit PCI bus.
Graphics 14.1/15-in XGA (1024x768) or 15-in SXGA+ (1400x1050) TFT LCD display.
S3 Savage4 AGP4X 3D graphics.
Supports 16 million colors and OpenGL graphics.
Supports hardware acceleration for MPEG. Display driver supports MPEG2 overlay.
Supports simultaneous LCD+CRT operation (same image on both displays).
Integrated VGA.
Up to 32-MB video memory (shared with system memory).
Supports NTSC and PAL TV.
Dual display for LCD and external monitor or TV.
External color support: starting at 640 x 480, up to 1600 x 1200 display resolution.
Power Rechargeable 8-cell Lilon battery: 14.8 V, 3900 mAH.
Battery life: up to 2.5 hours (varies with model and usage).
Battery recharge (100%): up to approx. 3 hours with system off (varies with model).
Low-battery warning.
Standby/hibernate and resume capability.
Universal AC adapter: 100–240 Vac (50/60 Hz) input, 19 Vdc output, 75 W, 3.95-
amp, 387.5g, 127.3 mm x 51.5 mm x 29.3 mm.
Mass Storage 20- to 40-GB removable IDE hard disk drive.
CD/DVD drive 8X DVD or 8X8X24X8 DVD/CD-RW (or higher) removable drive.
RAM Two slots for DDR SDRAM expansion (PC-2100) up to 1024 MB (2x512MB).
266-MHz RAM bus.
Audio System DirectSound.
MIDI (playback) support.
16-bit, full duplex stereo sound through two built-in speakers with integrated acoustic
chambers. 1.5 W per channel, 64 voices.
Built-in microphone.
Polk Audio certified on 15-in models (pavilion).
Dedicated mute and volume controls (selected models).
DVD/CD player (can play while notebook is on standby, in hibernation, or off).
3D-enhanced audio.

zt1100/xz200 and xt1500 Series Product Information 15
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Communications 56 Kpbs Ambit modem.
10/100 LAN integrated.
Keyboard and
Pointing Devices 87/88/91-key touch-type QWERTY keyboard with 101/102 key emulation.
Embedded numeric keypad.
12 function (Fn) keys.
5 user-programmable One-Touch buttons.
Touch pad with lock button and on-off indicator.
Left and right click buttons, vertical scroll pad.
Input/Output 2 universal serial bus (USB) ports.
15-pin VGA video-out (blue) with DDC support. (Resolution up to 1600 ×1200 ×64K
or 16M colors. Refresh rate of 60 to 85 Hz, depending on resolution and color depth.)
RJ-45 LAN jack.
25-pin bi-directional high-speed ECP/EPP parallel (burgundy).
S-video TV out (yellow).
IEEE 1394 port.
Docking port: supports optional simple port replicator.
One DC-in jack.
One microphone-in jack
One headphone-out jack.
Expandability One Type II 16-/32-bit PC Card slot (3.3- and 5-V support).
CardBus enabled.
One integrated Secure Digital Multi-Media Card slot.
Optional simple port replicator (selected models).
Security Features User and administrator passwords.
DMI-accessible electronic serial number.
Kensington MicroSaver lock slot.
Environmental Limits Operating temperature: 0 to 40 °C (32 to 104 °F).
Operating humidity: 10 to 90 percent RH (0 to 40 °C).
Operating altitude: up to 10,000 ft (3000 m) at 25 °C (77 °F).
Storage (non-operating) temperature: –20 to 65 °C (–4 to 149 °F).
Major ICs CPU: Intel Mobile Pentium 4 processor.
North Bridge: VIA Pro Savage P4N266
South Bridge: VIA VT8233CE
Display controller: S3 Savage 4 in North Bridge.
Audio controller: VIA/Realtek ALC201 AC97 Codec.
CD player controller: O2 OZ-163.
LAN: Realtek RTL8100L.
CardBus controller: ENE 1410
Keyboard/embedded controller: National NS87591.
Super I/O: in South Bridge + VT1211.
SD/MMC controller: W83L518D
IEEE 1394 controller: VIA VT6306

16 Troubleshooting and Diagnostics zt1100/xz200 and xt1500 Series
Troubleshooting and Self-Repair Guide
Troubleshooting and Diagnostics
This section contains solutions to several types of problems you may encounter when using the
notebook. Try the solutions one at a time, in the order in which they are presented.
You can also find technical tips and software updates for the notebook at the HP Business Support
web site (www.hp.com/go/bizsupport).
Audio Problems
If no sound is audible
• Press Fn+Page Up several times.
• If available, press the rear volume control several times.
• Click the speaker icon on the taskbar (if present), and make sure Mute is not checked and the
Volume slider is not set to the bottom.
• If available, press the mute button on the right side of the notebook once or twice until the
indicator light goes off.
• The notebook’s sound may not operate properly in MS-DOS mode.
If sound does not record
• Check the software controls for recording sound: click Start, All Programs, Accessories,
Entertainment, Sound Recorder.
• In Volume Control, click Options, Properties, and make sure the microphone is enabled in the
recording controls.
• Test the audio with the e-Diagtools diagnostics—see “Using the e-Diagtools Diagnostic Tests”
on page 33.
If you hear a loud high-pitched whine (feedback) from the speakers
• In Volume Control, try reducing the master volume.
• In Volume Control, click Options, Properties, and select the microphone option for the playback
settings. Make sure the microphone is muted.
• Avoid using the built-in microphone and built-in speakers at the same time.

zt1100/xz200 and xt1500 Series Troubleshooting and Diagnostics 17
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CD and DVD Problems
If you can’t boot from a CD in the CD/DVD drive
• Make sure the CD is bootable, such as a Recovery CD.
• Make sure the CD-ROM/DVD drive is selected as the boot device—see “Changing the Boot
Device”on page 13.
• Restart the notebook.
• Test the CD/DVD drive with the e-Diagtools diagnostics—see “Using the e-Diagtools Diagnostic
Tests”on page 33.
If a CD or DVD plays erratically
• Dirt or smudges can cause a disk to skip. Clean the disk with a soft cloth. If the disk is badly
scratched, it may have to be replaced.
• Some DVDs include software called “PC Friendly.”You generally should not install this
software, as it can cause errors or erratic play. If needed, uninstall it and restart the notebook.
If a DVD movie stops playing in the middle
• You may have accidentally paused the DVD movie. Press the Play button to resume.
• The DVD may be double-sided. Open the DVD tray, and read the text near the center of the disk.
If it says Side A, flip the disk over, close the tray, and press the Play button to continue playing
the movie.
If you get a Region Code error when playing a DVD movie
• DVDs have regional codes embedded in their disk data. These codes prevent DVD movies from
being played outside the region of the world in which they are sold. If you get a Region Code
error, you are trying to play a DVD intended for a different region.
Important: Most DVD drives let you change the region code only a limited number of times
(usually no more than four) to allow you to set the proper region code for your area. Please note
that when you reach this limit, your last change to the region code will be hard-coded on the DVD
drive, and will be permanent. The HP warranty does not cover the expense of correcting this
situation.
Refer to the help for the DVD player software for details about setting region codes.
If the notebook cannot read a CD or DVD
• For a single-sided CD or DVD, make sure the disk is placed in the drive with the label facing up.
• Clean the disk with a soft cloth.
• Wait 5 to 10 seconds after closing the tray for the notebook to recognize the disk.
• Remove the disk from the drive, then restart the notebook.
• If you created the CD on a CD-RW drive, try using a different media brand. For best results use
HP certified media. While other media may work, HP cannot guarantee compatibility.

18 Troubleshooting and Diagnostics zt1100/xz200 and xt1500 Series
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If a DVD movie doesn’t fill the screen
• Each side of a double-sided DVD has a different format (standard or widescreen). In widescreen
format, black bands appear at the top and bottom of the screen. To view the standard format, flip
the disk over and play the other side.
If you have problems with display resolution or color depth while playing a DVD
• Set the display resolution and color depth before starting the DVD player. You cannot change
these once the DVD player is started.
• Some combinations of color depth and resolution are not supported in DVD playback. If needed,
reduce color depth or display resolution.
If a DVD doesn’t play with two displays
• Before starting the DVD player, press Fn+F5 to switch to one display. You cannot switch displays
once the DVD player is started.
• If you’re using both displays, the DVD image will not appear on any display set up as
“secondary”. Click Start, Control Panel, Appearance and Themes, Display. Click Advanced on
the Settings tab, then click the S3Display tab and change settings.
Display Problems
If the notebook is on, but the screen is blank
• Move the mouse or tap the touch pad or scroll pad. This will wake the display if it is off.
• Try pressing Fn+F2 to increase the display brightness.
• Press Fn+F5 in case the internal display was disabled. (Do this three times to return to the state
you started from.)
• If the notebook is cold, allow it to warm up.
If the screen is difficult to read
• Try setting the display resolution to its default setting of 1024×768: click Start, Control Panel,
Appearance and Themes, Display, Settings.
If part of the Windows desktop is not visible and you have to scroll down to see the
taskbar, or does not fill the entire display and has a black border
• The display resolution may be set incorrectly. Adjust as needed.
If an external display does not work
• Check the connections.
• Press Fn+F5 in case the external monitor was disabled. (Do this three times to return to the state
you started from.)
• Test the display with the e-DiagTools diagnostics—see “Using the e-Diagtools Diagnostic Tests”
on page 33.

zt1100/xz200 and xt1500 Series Troubleshooting and Diagnostics 19
Troubleshooting and Self-Repair Guide
If one or more display pixels look bad
TFT display manufacturing is a highly precise but imperfect technology, and manufacturers cannot
produce displays that are cosmetically perfect. Most, if not all, TFT displays exhibit some level of
cosmetic imperfection. These cosmetic imperfections may be visible under varying display conditions,
and can appear as bright, dim, or dark spots. This issue is common across all vendors supplying TFT
displays in their products and is not specific to the HP notebook display.
HP notebook TFT displays meet or exceed all HP standards for cosmetic quality of TFT displays. HP
does not warrant that the displays will be free of cosmetic imperfections. TFT displays can have a
small number of cosmetic imperfections and still conform to HP’s cosmetic quality specifications,
including the following:
• No more than 6 pixels remain on (always one color, such as white, red, green, or blue dots).
• No more than 6 pixels remain off (always dark).
• No more than a total of 8 pixels stuck on or off.
• No other stuck pixel within 15 mm of a stuck pixel.
Refer to HP Customer Care for a more comprehensive explanation of HP display quality. We expect
that over time the industry will continue to produce displays with fewer inherent cosmetic
imperfections, and we will adjust our HP guidelines as these improvements are implemented.
If you have problems with display resolution or color depth while playing a DVD or a
video file in AVI or MPEG format
• Set the display resolution and color depth before starting the DVD or video file player. You
cannot change these settings once the player is started.
• Some combinations of color depth and resolution are not supported in DVD or AVI playback. If
needed, reduce color depth or display resolution.
If a DVD or a video file in AVI or MPEG format doesn’t play with two displays
• Before starting the DVD or video file player, press Fn+F5 to switch to one display. You cannot
switch displays once the player is started.
• If you’re using both displays, the DVD or video image will not appear on any display set up as
“secondary”. Click Start, Control Panel, Appearance and Themes, Display. Click Advanced on
the Settings tab, then click the S3Display tab and change settings.
If you have display problems while using a TV set as a monitor
• The notebook’s S-video (TV-out) port is optimized for DVD display. Performance may vary
when using the S-video port for other applications.
• Before using a TV set as a monitor, switch the notebook’s display resolution to 800 by 600 pixels:
1. Connect a video cable from the TV set to the notebook’s S-video port (colored yellow) on
the back of the notebook. (You don’t need to turn the notebook off to do this.)
2. Turn on the TV.
3. Click Start, Control Panel, Appearance and Themes, Display, Settings, then click the
Advanced button.
4. On the S3Display tab, select TV as the Display Device, then click OK.
5. Set the screen resolution to 800 by 600 pixels, then click OK.

20 Troubleshooting and Diagnostics zt1100/xz200 and xt1500 Series
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If you have display problems while using a simple port replicator or a CRT monitor
• If you dock to a simple port replicator or attach a CRT monitor while the notebook is off, the
notebook may not properly recognize the CRT when you restart the notebook, although its LCD
display will be active. If this happens, select your preferred display device either of these ways:
• Press Fn+F5 repeatedly.
• Click Start, Control Panel, Appearance and Themes, Display, Settings, then click the
Advanced button. On the S3Display tab, select the Display Device you want, then click OK.
Floppy Disk Drive Problems
If a floppy drive connected to the USB port doesn’t work
• Make sure the drive is securely connected to the notebook.
• Restart the notebook: click Start, Turn Off Computer, Restart.
Hard Disk Drive Problems
If the notebook’s hard drive doesn’t spin
• Make sure the notebook has power. If necessary, connect the AC adapter, and make sure it is fully
plugged into a power source and into the back of the notebook.
• Remove and reinsert the hard drive—see “Removing the Hard Disk Drive”on page 42.
If the hard disk makes a buzzing or whining noise
• Important: Back up the drive immediately.
• See whether the noise is coming from elsewhere, such as the fan or a PC Card drive.
If files are corrupted
• Check the hard disk: open My Computer, select the disk you want to scan, click File, Properties,
and use the Tools tab.
• Run the Norton AntiVirus program.
• Test the hard disk drive with the e-DiagTools diagnostics—see “Using the e-Diagtools Diagnostic
Tests”on page 33.
• If necessary, format the hard disk and reinstall the original factory software—see “Recovering the
Factory Software Installation”on page 37.
If the hard drive’s reported capacity is less than its actual size
• The hard disk drive is preconfigured to allocate some space to diagnostic software, which is used
in support and service of your notebook. This part of the hard drive is unavailable for other uses,
and so is not included in the capacity of the hard drive as reported by Windows (My Computer,
Properties).