Lg Laptop Lm50 Users Manual LM40/50 SVC $Export$

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2015-01-26

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Service Manual
(LM40/50)

LG Electronics
0

Contents

Ch 1. Service information

Ch 2. Locations

Ch 3. System information
· Specification
· Model configuration
· System Block Diagram
· Fn key combinations
· Status indicators
· BIOS Flash
· BIOS Setup

Ch 4. Symptom-to-part index
· Power system checkout
· Numeric error codes
· Error messages
· LCD-related symptoms
· Indeterminate problems

Ch 5. Removing and replacing a part (FRU)

Ch 6. Part list
· Part list
· Exploded view

Ch1. Service information

Chapter 1. Service information
1-1. Important service information
Strategy for replacing parts (FRU-Field Replaceable Units)
Before replacing parts
Make sure that latest BIOS and drivers are installed before replacing any parts (FRUs) listed in this
Use the following strategy to prevent unnecessary expense for replacing and servicing parts
1. If you are instructed to replacing a part but the replacement does not correct the problem, reinstall the
original part before you continue.
2. Some computers have both a processor board and system board. If you are instructed to replace either
the processor board or the system board, and replacing one of them does not correct the problem,
reinstall that board, and then replace the other one.
3. If an adapter or device consists of more than one part, any of the parts (FRUs) may be the cause of the
error. Before replacing the adapter or device, remove the parts (FRUs), one by one, to see if the
symptoms change. Replace only the part that changed the symptoms.
Caution
The BIOS configuration on the computer you are servicing may have been customized.
Running Automatic Configuration my alter the settings. Note the current configuration settings;
then, when service has been completed, verify that those settings remain in effect.

Strategy for replacing a hard-disk drive
You have to get a User’s approval before formatting or replacing a hard-disk drive. You must let the User
know that the user is responsible for the loss data
Caution
The drive startup sequence in the computer you are servicing may have been changed. Be
extremely careful during write operations such as copying, saving, or formatting. If you select an
incorrect drive, data or programs can be overwritten.

Ch1. Service information
1-2. Safety notices
Warning
Before the computer is powered-on after part (FRU) replacement, make sure all screws, springs,
and other small parts are in place and are not left loose inside the computer. Verify this by
shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause
electrical shorts.

Warning
some standby batteries contain a small amount of nickel and cadmium. Do not disassemble
a standby battery, recharge it, throw it into fire or water, or short-circuit it. Dispose of the battery
as required by local ordinances or regulations. Use only the battery in the appropriate parts
listing. Use of an incorrect battery can result in ignition or explosion of the battery

Warning
The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or
water, or short-circuit it. Dispose of the battery pack as required by local ordinances or
regulations. Use only the battery in the appropriate parts listing when replacing the battery pack.
Use of an incorrect battery can result in ignition or explosion of the battery.

Warning
If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands,
immediately was the affected areas with water for at least 15 minutes. Seek medical care if any
symptoms from the fluid are present after washing.

Warning
To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card.

Warning
Though the main batteries have low voltage, a shorted or grounded battery can produce enough
current to burn personnel or combustible materials.

Warning
Before removing any part (FRU), turn off the computer, unplug all power cords from electrical
outlets, remove the battery pack, and then disconnect any interconnecting cables.

Ch1. Service information
1-3. Safety information
General safety
Follow these rules to ensure general safety
· Observe good housekeeping in the area of the machines during and after maintenance.
· When lifting any heavy object
1. Ensure you can stand safely without slipping.
2. Distribute the weight of the object equally between your feet.
3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.
4. Lift by standing or by pushing up with your leg muscles
(This action removes the strain from the muscles in your back.)
· Do not attempt to lift any object weights more then 16kg(35lb) or object that you think are too heavy for you.
· Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.
· Before you start the machine, ensure that other service representatives and the customer’s personnel are
not in a hazardous position.
· Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the
machine.
· Keep your tool box away from walk areas so that other people will not trip over it.
· Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your
sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.
· Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, approximately
8 centimeters(3 inches) from the end.
· Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for you clothing.
· Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using
solvents, or working in any other conditions that might be hazardous to your eyes.
· After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that
is worn or defective.
· Reinstall all covers correctly before returning the machine to the customer.

Caution
Metal objects are good electrical conductors.

Ch1. Service information
Electrical safety
Observe the following rules when working on electrical equipment.
Important
Use only approved tools and test equipment. Some hand tools have handles covered with a soft
material that does not insulate you when working with live electrical currents.
Many customers have, near their equipment, rubber floor mats that contain small conductive
fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from
electrical shock.
· Find the room emergency power-off switch, disconnecting switch, or electrical outlet. If an electrical outlet.
If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.
· Do not work alone under hazardous conditions or near equipment that has hazardous voltages.
· Disconnect all power before
1. Performing a mechanical inspection
2. Working near power supplies
3. Removing or installing main units
· Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer
to power-off the wall box that supplies power to the machine and to lock the wall box in the off position.
· If you need to work on a machine that has exposed electrical circuits, observe the following precautions :
Ensure that another person, familiar with the power-off controls, is near you.

Caution
Another person must be there to switch off the power, if necessary.

· Use only one hand when working with powered-on electrical equipment. Keep the other hand in your
pocket or behind your back
Caution
An electrical shock can occur only when there is a complete circuit. By observing the above rule,
you may prevent a current from through your body.

· When using testers, set the controls correctly and use the approved probe leads and accessories for that
tester

Ch1. Service information
· Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal
floor strips and machine frames.
· Observe the special safety precautions when you work with very high voltages. These instructions are in
the safety sections of maintenance information. Use extreme care when measuring high voltages.
· Regularly inspect and maintain your electrical hand tools for safe operational condition.
· Do not use worn or broken tools and testers.
· Never assume that power has been disconnected from a circuit. First check that it has been powered off.
· Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors,
non-grounded power extension cables, power surges, and missing safety grounds.
· Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is
conductive such touching can cause personal injury and machine damage.
· Do not service the following parts with the power on when they are removed from their normal operating
places in a machine.
1. Power supply units
2. Pumps
3. Blowers and fans
4. Motorgenerators
and similar units. (This practice ensure correct grounding of the units.)
· If an electrical accident occurs
1. Use caution ; do not become a victim of yourself.
2. Switch off power.
3. Send another person to get medical aid.

Ch1. Service information
Safety inspection guide
The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions.
As each machine was designed and built, required safety items were installed to protect users and service
personnel from injury. This guide addresses only those items. You should use good judgment to identify
potential safety hazards due to attachment of non-LG features or options not covered by this inspection
guide.
If any unsafe conditions are present, you must determine how serious the apparent hazard could be and
whether you can continue without first correcting the problem.

· Consider these conditions and the safety hazards they present
1. Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal
electrical shock)
2. Mechanical hazards, such as loose or missing hardware

Refer to the following checklist and begin the checks with the power off, and the power cord disconnected.

· Checklist
1. Check exterior covers for damage (loose, broken, or sharp edges)
2. Power off the computer. Disconnect the power cord.
3. Check the power cord for :
a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground continuity
for 0.1

or less between the external ground pin and frame ground.

b. The power cord should be the type specified in the parts list.
c. Insulation must not be frayed or worn.
4. Remove the cover.
5. Check for any obvious non-LG alterations. Use good judgment as to the safety of any non-LG
alterations.
6. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or
other liquids, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Check that the power-supply cover fasteners (screw or rivets) have not been removed or tampered with.

Ch1. Service information
Handling devices that are sensitive to electrostatic discharge
Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to
electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between
objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat,
and the person handling the part are all at the same charge.
Note
Use product-specific ESD procedures when they exceed the requirements noted here.
Make sure that the ESD protective devices you use have been certified (ISO9000) as fully effective.
· When handling ESD-sensitive parts :
1. Keep the parts in protective packages until they are inserted into the product.
2. Wear a grounded wrist strap against your skin to eliminate static on your body.
3. Prevent the part from touching your clothing. Most clothing retains a charge even when you are wearing
a wrist strap.
4. Use the black side of a grounded work mat to provide a static-free work surface. The mat is especially
useful when handling ESD-sensitive devices.
5. Select a grounding system, such as those listed below, to provide protection that meets the specific
service requirement.
Note
The use of a grounding system is desirable but not required to protect against ESD damage.

a. Attach the ESD ground clip too any frame ground, ground braid, or green-wire ground.
b. Use an ESD ground or reference point when working on a double-insulated or battery-operated
system. You can use coax or connector-outside shells on these systems.
c. Use the round ground-prong of the AC plug on AC-operated computers.

Grounding requirements
Electrical grounding of the computers is required for operator safety and correct system function.
Proper grounding of the electrical outlet can be verified by a certified electrician.

Ch1. Service information
1-4. Laser compliance statement
When a CD-ROM drive, DVD drive or the other laser product is installed, note the following :
Caution
Use of controls or adjustments or performance of procedures other than those specified here in
might result in hazardous radiation exposure.
Opening the CD-ROM drive, DVD-ROM drive or the other optical storage device could result in exposure
to hazardous laser radiation.
There are no serviceable parts inside those drives. Do not open
Danger
Emits visible and invisible laser radiation when open. Do not stare into the beam , do not view
directly with optical instruments, and avoid direct exposure to the bean.

1-5. Backup (Standby) RTC battery safety information
When replacing or disposing of the backup (standby) RTC battery, note the following :

Ch1. Service information
1-6. Read this first
Before you go to the checkout guide, be sure to read this section.

Important Notes

Only trained personnel certified by LG should service the computer.

Read the entire FRU removal and replacement page before replacing any FRU.

Use new nylon-coated screws when you replace FRUs.

Be extremely careful during such write operations as copying, saving, formatting.
Drives in the computer that you are servicing sequence might have been altered. If you selected an
incorrect drive, data or programs might be overwritten.

· Replace FRUs only for the correct mode.
· When you replace a FRU, make sure the model of the machine and the FRU part number are correct by
referring to the FRU parts list.
· A FRU should not be replaced because of a single, irreproducible failure. Single failures can occur for a
variety of reasons that have nothing to do with a hard ware defect, such as cosmic radiation,
electrostatic discharge, or software errors.
· Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the
error log and run the test again. If the error does not recur, do not replace the FRU.
· Be careful not to replace a non-defective FRU.

What to do first
You must fill out the record form first.
During the warranty period, the customer may be responsible for repair costs if the computer damage was
caused by misuse, accident, modification, unsuitable physical or operating environment, or improper
maintenance by the customer. The following list provides some common items that are not covered under
warranty and some symptoms that might indicate that the system was subjected to stress beyond normal
use. Before checking problems with computer, determine whether the damage is covered under the
warranty by referring to the following :

Ch1. Service information
The followings are not covered under warranty :
· CD

panel cracked from the application of excessive force or from being dropped

Scratched (cosmetic) parts

Distortion, deformation, or discoloration of the cosmetic parts

Cracked or broken plastic parts, broken latches, broken pins, or broken connectors caused by excessive
force

Damage caused by liquid spilled into system

Damage caused by improper insertion of a PC Card or the installation of an incompatible card

Damage caused foreign material in the diskette drive

Diskette drive damage caused by pressure on the diskette drive cover or by the insertion of a diskette
with multiple labels

Damaged or bent diskette eject button

Fusses blown by attachment of a non-supported device

Forgotten computer password (making the computer unusable)

Sticky keys caused by spilling a liquid onto the keyboard
The following symptoms might indicate damage caused by non-warranted activities :

Missing parts might be a symptom of unauthorized service or modification.

If the spindle of a hard-disk drive becomes noisy, it may have been subjected to excessive force, or
dropped.

Ch2. Locations

Chapter 2. Locations
Front view (15”)

Volume Up
LCD
Volume Down
Power switch
Power-saving mode switch

Keyboard
TouchPad
TouchPad button

Built-in speakers

IrDA port

Front view (14.1”)

Volume Up
LCD
Volume Down
Power switch
Power-saving mode switch

Keyboard
TouchPad
TouchPad button

Built-in speakers

IrDA port

Ch2. Locations

Rear view (15”/14.1”)
Ethernet port

Power jack

Modem port

S-Video

Left view (15”/14.1”)

PC card eject button

ODD tray open button

IEEE1394 port

SD memory Card slot

PC card slot

ODD

Emergency eject hole

USB port

Right view (15”/14.1”)
Fan louvers

Parallel port

VGA port

Key hole (Kensington Lock)

USB port

Microphone jack

Headphone jack / S-PDIF

Security key hole (Kensington Lock)
User can attach a separately purchased chain lock into the security keyhole and connect it to a fixed object
to prevent a notebook theft

Ch3. System information

Chapter 3. System information
Specification
• CPU
· Banias 1.3 ~ 1.7 GHz / Dothan 1.7 GHz
· FCPGA
• Main Chipset & Graphic
· Intel ODEM + ICH4
· Intel Montara GME (Graphic Controller Integrated)
· ATi M9+ w/32MB VRAM
· ATi M10 w/64MB VRAM
• Memory
· 2SODIMM – Up to 2GB
· DDR200/266/333 Capable
• HDD
· 2.5” 9.5mm 40/60/80GB
• Communication
· Modem, Daughter Card Type
· 10/100 LAN on Board
· IrDA
• Wireless LAN Solution
· 802.11b Mini PCI Type, Quad-band Antenna
• Cardbus
· 1 Type II Cardbus Socket
· SD Card Slot
· Memory Stick Slot
• ODD
· Fixed Optical Storage
· DVD/COMBO
• Port
· VGA, PIO, 2X USB(2.0), 1X USB(1.1) RJ11, RJ45, Headphone-out / S-PDIF, Mic-in, DC-in, IEEE1394
• Input Devices
· Keyboard (Full sized Keyboard, 2.5mm Key Storke)
· Touchpad
· 3 Buttons (Power, Volume Up, Volume Down)
• Indicator (LED)
· Power, HDD Activity, Caps Lock, Num Lock, Wireless LAN, Battery Charge, AC
• Power
· 65 Watt 18.5V Adapter
• Audio
· 2 Pro Speakers w / 16bit Stereo (SB Pro Compatible) 1W
•Material
· McKinley CFRTP / Rear (Mg)
• Battery
· 6 Cell 4.4Ah Cylindrical (Li-Ion)
· 9 Cell 6.6Ah Cylindrical (Li-Ion)

Ch3. System information
Model Configuration

Ch3. System information
System Block Diagram

Ch3. System information
Fn key combinations
The following table shows the function of each combination of Fn with a function key.
Function of Fn keys has nothing to do with Operating System.
+

Description
User-defined Hot key. (Setting is available at OSD)
User-defined Hot key. (Setting is available at OSD)
User-defined Hot key. (Setting is available at OSD)
Put the computer in standby mode.
To turn the LCD display on again, press any key or TouchPad.
(In Windows XP and Windows 2000, this combination of buttons functions as a sleep button.
The setting can be changed so that pressing it puts the computer into hibernation mode or
even shuts the computer down.)
Enable / Disable TouchPad.
Disable TouchPad by pressing once.
Enable TouchPad by pressing once more.
Enable / Disable Wireless LAN.
Disable Wireless LAN by pressing once.
Enable Wireless LAN by pressing once more.
Switch between the computer display and an external monitor. If an external monitor is
attached, computer output is displayed in the following three patterns by turns:
External monitor (CRT display)
Computer display and external monitor (LCD + CRT display)
Computer display (LCD)
Enable / Disable the auto sound control function with the Battery Miser if it is installed.
(To enable this function, you have to install the Battery Miser first.)
Enable Disable the auto brightness control function with the Battery Miser if it is installed.
(To enable this function, you have to install the Battery Miser first.)
User-defined Hot key. (Setting is available at OSD)
User-defined Hot key. (Setting is available at OSD)
User-defined Hot key. (Setting is available at OSD)
The computer display becomes brighter.
The computer display becomes less bright.

Ch3. System information
Status indicators
· The system status indicators show the status of the computer.

14.1”

15”

a. AC Power
Power indicator lights up when the power cord is connected to the computer.
b. Battery
Battery status indicator indicates the following status of the battery.
Green : The computer is connected to an AC adapter and is being charged.
Off : The battery if fully charged OR the computer is not connected to an AC adapter.
Blinking : The battery power is under 10% of its maximum capacity.
c. Power
Power status indicator indicates the following status of the computer.
Green : The computer is turned on.
Off : The computer is turned off or is in hibernation mode.
Blinking : The computer is in standby mode.
d. Drive in use
Drive in use indicator lights up when data is being written to or read from the hard-disk or optical disk
drive.
e. Num Lock
Num Lock indicator lights up when the combination of the

and

key is pressed.

When this indicator lights up, you can use the embedded numeric keys.
(To use the numeric keys, you must enable the Internal Keypad setting under the Advanced menu in
the BIOS Setup Utility)
f. Caps Lock
Caps lock indicator lights up when the Caps lock key is pressed. When this indicator lights up, you can
type capital letters without pressing the

key.

g. Wireless activity indicator
Wireless activity indicator indicates the following.
Blue : The Wireless client is associated with the network.
Off : The Wireless card does not have the power or RF is off.
Blinking : The Wireless client is not associated with the network.

Ch3. System information
BIOS Flash
You can update BIOS using a floppy disk drive.
Because this system is not equipped with any floppy disk drive, you have to use an external USB drive for
a BIOS update. In order to boot up with an USB drive, please set Removable Device as the first boot up
drive in the boot menu of BIOS setup.
· How to update flash ROM in DOS

1. Create ‘boot up’ flash update diskette.
2. Copy a ROM image file (*.wph) into the root of the flash update diskette.
3. Copy phlash16.exe to the flash update diskette.
4. Insert the diskette into the FDD of your computer.
5. Boot your computer with the diskette, and type ‘phlash16*.wph/mode=n’.
6. Cold boot and follow the instruction displayed on the screen.

· Flash options /mode=n

0 – Default mode. Keep the current DMI information and update BIOS image only.

1 – Update DMI information only.
If new DMI information is not specified, the current DMI information is left unchanged.

2 – Update BIOS and DMI information.
If new DMI information is not specified, the current DMI information is left unchanged.

3 – Update BIOS and DMI information.
DMI information is updated to the DMI string and options specified in the new BIOS image.
Note
DMI is Desktop Management Interface

Ch3. System information
How to update flash ROM in Windows
1. Quit all running programs.
2. Start WINPHLASH.EXE.

3. Select the procedure you want :
a. Backup BIOS and Flash BIOS with new settings
b. Backup BIOS Only
4. Specify the locations for backup and new BIOS files in BIOS Setting Locations.
a. Enter the name of the backup file for existing BIOS or click Browse to locate the file.
b. Enter the name of the new BIOS file or click Browse to locate the file.
5. Click Advanced Settings button to access the advanced settings
6. Click Flash BIOS button to start flash BIOS.
7. Wait for the operation to complete. WinPhlash may take one or two minutes to complete flash BIOS
operation.

Ch3. System information

8. After the completion, ‘System BIOS was successfully updated’ appears on the screen, then the
computer restarts.
9. After the restart, make sure the system BIOS is updated.
10. If your computer does not restart automatically, turn off your computer and then turn it back on by
pressing power button.

Ch3. System information
BIOS Setup
BIOS (Basic Input and Output System) Setup saves the system configuration in CMOS RAM, and
check the configurations during startup. Use the BIOS Setup Utility to change and save the system
environment, hardware configurations, power saving mode, etc.

· Open the BIOS Setup Utility in the following situations :

1. to change the BIOS setup
2. to replace the backup battery
3. system configuration error occurs
4. to change the boot order
5. to set/change a password

Press the power button.
When the LG logo appears on the screen, press

and enter the BIOS Setup Utility.

Ch3. System information
Default screen

· BIOS Setup Utility menu bar shows the following menus
Main, Advanced, Security, Boot, Exit

· Main menu enables you to set the system time and date, hard disk drive setup, memory configuration, and
floppy disk drive specification.

· Advanced menu enables you to configure the operating environment for peripheral devices, such as
legacy USB, TouchPad, internal keypad, and parallel port.

· Security menu enables you so set or change supervisor and user passwords.

· Boot menu enables you to set the order of drives the system selects to find its operating system during the
boot sequence. Use Enter, + and - keys to change the order.

· Exit menu enables you to save your system configuration.

Ch3. System information
Using the keys
The keys used in the BIOS Setup Utility and their functions are described at the bottom.
·

: General Help

Display the descriptions of the keys used in the setup utility.

: Select Item

Navigate and select items in the setup utility. The selected item becomes highlighted.

: Select Menu

Move to another menu.

: Change Values

Change the value of a selected item.

: Load Default Configuration
Display Setup Confirmation window. Press Enter to load default configuration.

: Select Sub-Menu
Some items have sub-menus. Display the sub-menu for a selected item.

: Save and Exit
Display Setup Confirmation window. Press Enter to save and exit.

: Exit
In a sub-menu, press Esc to move to the previous window. In Main menu, click Esc to move to Exit menu.

Ch3. System information
Main Menu

· System Time
Set the system time. Use Tab key to move to hour, minute, and second. Use +, -, or Spacebar to change
the values.

· System Date
Set the system date.

· Processor Type / Speed
Indicate CPU type and clock speed installed on the system.

· BIOS Version / KBC Version / UUID Number
Display BIOS / KBC version information and UUID value.

· Primary Master / Secondary Master
Display the information about the device used as the primary master. Press Enter to set the parameters of
the device at this connection.

· System Memory / Extended Memory
Display the memory size information.

Ch3. System information
Advanced Menu

· Legacy USB Support
Enable support for the Legacy USB. (Enabled / Disabled)
· TouchPad Support
Enable support for TouchPad. (Enabled / Disabled)
· Internal Keypad
Enable support for the internal keypad. (Enabled / Disabled)

Ch3. System information
· Parallel Port
Configure the parallel port using options. (Enabled / Disabled)
Set the mode for the parallel port using options. (Output only, Bi-directional, EPP, and ECP)
Set the base I/O address for the parallel port. (378 / 278 / 3BC)
Set the interrupt for the parallel port. (IRQ5 / IRQ7)
· Parallel port modes
1. Output only
The normal mode. Use this mode when you connect a printer to the parallel port.
2. Bi-directional
Allows bi-directional high speed data transfer.
3. EPP (Extended Parallel Port)
Allows a connection to a device supporting EPP, EPP uses the existing parallel port signal to allow
asymmetric bi-directional data transfer with a host device.
4. ECP (Extended Capabilities Port)
Allows a connection to a device supporting ECP, ECP increases the data transfer rate and enables you
to set DMA channel. (DMA1 / DMA3)
· Boot-time Diagnostic Screen
Enables the Boot-time Diagnostics Screen (Enabled / Disabled)

Ch3. System information
Security Menu
· Setting a password
If you want to protect the system setup from an unauthorized user, follow the instructions below to set a
password.
You can set a password in the BIOS Setup Utility program.
Caution
If you forget the password, you cannot gain access to your system.
Make sure you write down the password in a safe place only you can refer to in case you forget
the password

· Set Supervisor Password

A password protects your computer from unauthorized users. The factory default setup does not have a
password. A supervisor password prevents unauthorized users from changing the system setup.

a. Start the system setup utility and use arrow keys to select Set Supervisor Password under
Security menu, and then press Enter.
b. If the following screen appears, select Set Supervisor Password by using arrow keys, and Enter.

Ch3. System information
Note
A supervisor password enables you to change settings in the BIOS Setup Utility and to perform
Power on Boot.
Users other than the administrator should only have user passwords.
c. If the following message appears, enter a new supervisor password and then Enter.
A password must be consisted of character A~Z and numbers 0~9, and have the maximum
length of 8.

d. If the following message appears, press Enter.

e. Press F10 to save the new settings.
f. If the following message appears, select Yes and press Enter to restart the computer.

Ch3. System information
· Set User Password

A user password provides a lower level of security compared to a supervisor password.
A supervisor password must be set in order for you to set a user password.

a. Start the BIOS Setup Utility and use arrow keys to select Security menu.
b. Use arrow keys to selected Set User Password and press Enter.

Note
A user password gives limited access for changing the setting in the BIOS Setup Utility compared to
a supervisor password.

c. If the following message appears, enter a new password and press Enter.
A password must be consisted of characters A~Z and numbers 0~9, and have maximum
length of 8.

Ch3. System information

d. If the following message appears, press Enter.

e. Press F10 to save the new settings.
f. If the following message appears, select Yes and press Enter to restart the computer.

Ch3. System information
· Password on boot

Enables password entry on boot

a. Start the BIOS Setup Utility and use arrow keys to select Security menu.
b. If the following screen appears, select Set Supervisor Password or Set User Password by using
arrow keys, and input new password.

Ch3. System information
c. Select Password on boot menu, then change value (Enabled) by using +, - keys.

Note
If you set a Supervisor Password or User Password, you can use Password on boot.
If you set Disabled on Password on boot, You don’t have to enter a password.

Ch3. System information
· Set HDD Password

Set HDD Password to control access to the Hard-disk.
Press Enter to input, change or disable hard-disk password.

a. Start the BIOS Setup Utility and use arrow keys to select Security menu.
b. If the following screen appears, select Set HDD Password by using arrow keys, and press Enter.

Note
When loosing your HDD Password, you can not access your Hard-disk drive.

Ch3. System information
c. If the following message appears, enter a new supervisor password and then press Enter.
A password must be consisted of numbers 0~9, and have the maximum length of 8.

d. If the following message appears, press Enter.

e. Press F10 to save the new settings.
f. If the following message appears, select Yes and press Enter to restart the computer.

Ch3. System information
· Changing or removing a password

You must know the password in order to change or remove it.
a. Start the BIOS Setup Utility, enter your password, and then press Enter.
b. To change the password, follow the instructions on Set Supervisor Password or
Set User Password.
c. To remove the password, follow the instructions below.
Use arrow keys to select Security menu, and select a password you want to remove, and then press
Enter.
d. If the following message appears, enter the current password in the bracket next to
Enter Current Password, and then press Enter.

Enter
Enter

e. Press Enter without entering a new password in each of the brackets next to Enter New Password
and Confirm New Password.

f. If the following message appears, press Enter.

g. Press F10 to save the new setting.
h. If the following message appears, select Yes and press Enter to restart the computer.

Ch3. System information
Boot Menu

· Boot menu enables you to set the boot order for the CD-ROM drive, Removable devices, Hard drive, and
Network boot.
Boot menu displays the boot order of your system with higher priority given to a device higher on the list.
The default boot order is CD-ROM drive, Removable devices, Hard drive, and Network boot.
Changing the order of the devices on Boot menu changes the boot order of your system.
Use

and

keys to select a device. Press the combination of Shift and + to move the device up,

and - to move the device down on the list.

· CD-ROM Drive
The CD-ROM drive has the highest priority given in the boot order. Boot your system using the CD-ROM drive
by inserting a bootable CD in the CD-ROM(CD-RW/DVD combo) drive

· Removable Devices
You can set the boot order for more than one removable device, such as a legacy floppy drive.

· Hard

Drive

You can set the boot order for more than one hard disk drive.

Ch3. System information
Exit Menu

· Exit System Setup and save your changes to CMOS.

· Exit Saving Changes
Select Exit Saving Changes to save new setup information in CMOS RAM. CMOS RAM stores the
information using the backup battery; there fore, the information will not be lost when the computer is
turned off.

· Exit Discarding Changes
Select Exit Discarding Changes to discard new setup information. If you made changes to items other
than date, time, and passwords, the Setup Warning asks you to save the new configurations.
Select Yes and press Enter to save the new configuration.

· Load Setup Defaults
Select Load Setup Defaults to change the setup information to the factory default settings. If you select
Load Setup Defaults or press F9, Setup Confirmation asks you to confirm your selection.
Press Yes to load setup defaults.

Ch3. System information
· Discard Changes
Select Discard Changes to discard new setup information. Setup Confirmation asks you to confirm
your selection. If you want to discard any new setup information, select Yes.

· Save Changes
Select Save Changes to save any new setup information without exiting the BIOS Setup Utility.
Select Yes to save the new setup information in the Setup Confirmation window.

Ch4. Symptom-to-part index

Chapter 4. Symptom-to-part index
The symptom-to-part index in this section lists symptoms and errors and their possible causes.
The most likely cause is listed first.
Note
If replacing a part (FRU) does not solve the problem, put the original part back in the computer.
Do not replace a non-defective FRU.

Power system checkout
· To verify a symptom, do the following :
1. Power off the computer.
2. Remove the battery pack.
3. Connect the AC adapter.
4. Check that power is supplied when you power on the computer.
5. Power off the computer.
6. Disconnect the AC adapter and install the charged battery pack.
7. Check that the battery pack supplies power when you power on the computer.

· If you suspect a power problem, see the appropriate one of the following power supply checkouts :
1. Checking the AC adapter
2. Checking the operational charging
3. Checking the battery pack
4. Checking the backup battery

· Checking the AC adapter
If the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity
and installation.
If the computer does not charge during operation, go to ‘Checking operational charging’.

To check the AC adapter, do the following :

1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the

2
1

AC adapter cable. See the following figure :

Voltage (V dc)

+18.0 ~ +19.2

Ground

Ch4. Symptom-to-part index
· If the voltage is not correct, replace the AC adapter.

· If the voltage is acceptable, do the following :
1. Replace the system board.
2. If the problem persists, check the AC adapter whether it is correct product or not.
Note
Noise from the AC adapter does not always indicate a defect.

· Checking operational charging
1. To check whether the battery charges properly during operation, use a discharged battery pack or a
battery pack that has less than 50% of the total power remaining when installed in the computer.
Perform operational charging. If the battery status indicator or icon does not turn on, remove the battery
does not turn on, replace the battery pack.
2. If the charge indicator still does not turn on, replace the system board.
Then reinstall the battery pack.

Note
Do not charge battery pack, when its temperature is below 0

or above 60

· Checking the battery pack
1. Open the Power Meter window by clicking Start

Control Panel

Power Options and then;

check the total power remains. Battery charging does not start until the power Meter shows that less
than 95% of the total power remains; under this condition the battery pack can charge to 100% of its
capacity. This protects the battery pack from being overcharged or from having a shortened life.
2. To check the status of your batter, move your cursor to the Power Meter icon in the icon tray of the
Windows taskbar and wait for a moment (but do not click), and the percentage of battery power
remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon.

Note
If the battery pack becomes hot, it may not be able to charge. Remove it from the computer and
Leave it at room temperature for a while. After it cools down, reinstall and recharge it.

Ch4. Symptom-to-part index
· The Characteristics of the battery pack
1. Self-discharge
The battery gradually loses its power over time without ever being used.
2. Periodic full discharge / charge
Frequent recharge of the battery pack can reduce the capacity of the battery pack. When this happens,
you can perform the full discharge / charge to improve the capacity. You should perform periodic full
discharge /charge once every 30~60 days.
You should always use the battery until its power is low; then fully charge the battery.
3. Trickle charge
If the temperature of the battery pack drops below 10

, the trickle charging begins.

The trickle charging may take 32 hours for the battery pack to be fully charged.

Ch4. Symptom-to-part index
· To check the battery pack, do the following :
1. Power off the computer.
2. Remove the battery pack and measure the voltage between battery terminals 1(-) and 5(+).
See the following figure :

5(+)

Terminal

Voltage (V dc)

Ground(-)

+0V ~ +12.6V
(6 cell / 9-cell)

1(-)

3. If the voltage is still less than +11.1 V DC after recharging, replace the battery.
4. If the voltage is more than +11.1 V DC, measure the resistance between battery terminals 1 and 2.
The resistance must be 2 to 4

(typically 3

5. If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system
board.
Note
Charging will take at least 3 hours.
Note
Battery is an expendable supplier, so its capacity and used time can be reduced by using the computer.
· Checking the backup battery
1. Remove the backup battery.
2. Measure the voltage of the backup battery. See the following figure.

White (+)

Blue (+)

Wire

Voltage (V dc)

White

+2.5 ~ +3.2

Blue

Ground

If the voltage is correct, replace the system board.
If the voltage is not correct, replace the backup battery.
If the backup battery discharges quickly after replacement, replace the system board.

Ch4. Symptom-to-part index
Numeric error codes

Symptom / Error

FRU or action, in sequence

0200
Fixed disk failure
(The hard disk is not working)

1.Reset the hard-disk drive.
2.Load Setup Defaults in BIOS Setup Utility.
3.Hard-disk drive.
4.System board.

0210
Stuck Key error

1.Check the keyboard if it is pressed.
2.Replace the keyboard.

0211
Keyboard error

Run interactive tests of the keyboard and the auxiliary
input device.

0212
Keyboard Controller Failed

System board.

0220
Monitor type error - Monitor type does not
match the one specified in CMOS.

Load Setup Defaults in BIOS Setup Utility.

0230
System RAM error - System RAM Failed at
offset.

1.DIMM
2.System board

0231
Shadow RAM error - Shadow RAM failed at
offset

System board

0232
Extended RAM error - Extended RAM Failed
at address line

1. DIMM
2. System board

0250
System battery error - System battery is dead

Replace the backup battery and run BIOS Setup Utility
to reset the time and date.

Ch4. Symptom-to-part index

Symptom / Error

FRU or action, in sequence

0251
System CMOS checksum bad
- System CMOS checksum is not correct.
- Default configuration used.

Replace the backup battery and run BIOS Setup Utility
to reset the time and date.

0252
Password checksum bad - The password is
cleared.

Reset the password by running BIOS Setup Utility.

0260
System timer error

1. Replace the backup battery and run BIOS
Setup Utility to reset the time and date.
2. System board.

0271
Check date and time settings - Date and time
error.

Run BIOS Setup Utility to reset the time and date.

0280
Previous boot incomplete
- Default configuration used

1. Load ‘Setup Default’ in BIOS Setup Utility.
2. DIMM.
3. System board.

0281: Memory Size found by POST differed
from EISA CMOS

Load Setup Defaults in BIOS Setup Utility.

02B0
Diskette drive A error

Set up the diskette type in BIOS Setup Utility.

02B1
Diskette drive B error

Set up the diskette type in BIOS Setup Utility.

02B2
Incorrect drive A type - Floppy diskette drive
error

1. Floppy diskette drive.
2. External FDD cable.
3. I/O card.

02B3
Incorrect Drive B type

1. Floppy diskette drive.
2. External FDD cable.
3. I/O card.

02D0
System cache error - Cache disabled
(RAM cache failed and BIOS disabled)

1. Load ‘Setup Default’ in BIOS Setup Utility.
2. System board.

02F4
EISA CMOS not writable

1. Load ‘Setup Default’ in BIOS Setup Utility.
2. Replace the backup battery.
3. System board.

02F5
DMA test failed

1. DIMM
2. System board

02F6
Software NMI failed

1. DIMM
2. System board

Ch4. Symptom-to-part index

Symptom / Error

FRU or action, in sequence

02F7
Fail - Safe timer NMI failed

1. DIMM
2. System board

0611
IDE configuration changed