LG F1 Service Manual

0

Service Manual

(F1)

LG Electronics

1

Ch 1. Service information

Ch 2. Locations

Ch 3. System information

· Specification

· 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

Contents

2

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

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 us er 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.

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.

Ch1. Service information

3

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

4

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 cust omer.

Caution

Metal objects are good electrical conductors.

Ch1. Service information

5

 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

6

· 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

7

 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

8

 Handling devices that ar e sensi tive 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.

Ch1. Service information

 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.

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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.

1-4. Laser compliance statement

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

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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

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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.

Ch1. Service information

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Chapter 2. Locations

Ch2. Locations

 Front view

1. Power button

2. MS Outlook button

3. Internet Explorer button

4. Search button

5. Wireless LAN ON/OFF button

6. Built-in Speakers

7. Keyboard

8. Built-in microphone

9. 4-in-1 (SD/MMC/Memory Stick/Memory Stick Pro) Card Slot

10. Line-in port

11. Microphone port

12. Headset, S/PDIF port

13. Touchpad button

14. Touchpad

15. LCD

16. Wireless LAN Antennas Wireless LAN is optional.

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Ch2. Locations

 Left view

 Right view

1. Security Key Hole (Kensington Lock Hole)

2. LAN Port

3. Modem ports

4. USB Port

5. Optical Disk Drive

6. Open Disk Tray button

7. Emergency Ejector

1. PCMCIA card slot

2. IEEE 1394 Port

3. USB Port

4. S-Video port

A 7-pin slot compatible with 4-pin S-Video cables.

5. VGA Port

6. Power Port

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①

Ch2. Locations

 Rear view

1. Fan

2. Security Key Hole (Kensington Lock Hole)

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 Specification

Chapter 3. System information

Ch3. System information

Processors
Intel Core Solo/Duo/Core Duo 2/ Celeron-m Processor (L2 Cache Size: 1MB /2MB/4MB, FSB:

533MHz/667MHz)

The user must not replace or expand the CPU capacity arbitrarily. The CPU capacity differs depends on model type.

Main Memory
Maximum Size: Each slot is 1024MB and can be expanded to 2048MB.

SO DIMM Type for Memory Expansion: DDR2 SDRAM SO-DIMM (256MB, 512MB, 1024MB)

BIOS ROM
ROM: 4Mbit
Secondary Storage

2.5" Hard Disk Drive (SATA)

The hard disk capacity and the type depend on the notebook PC model.

Supports 4-in-1 ( SD / MMC / Memory Stick / Memory Stick Pro) Card
Optical Disk Drive

The specifications may differ by model type.

LCD

15.4" : WXGA(Resolution 1280 x 800) TFT Color LCD
Authentication for Anticopy Technology
U.S Patent Nos.4,631,603;4,577,216;4,819,908;4,907,093;5,315,448;and 6,516,132. Patent number of

Macrovision.
This product includes the technologies that are possessed by Macrovision and corresponding companies and

protected by the US Patent Law and other related laws. Use of all technologies subject to the copyrights must be
approved by Macrovision in advance. Otherwise, the technologies may only be used for internal display. Do not
disassemble or remodel the product.

External I/O Interface
External VGA Monitor Port: 1

Microphone Input Port (Mic in): 1
Headset/Optical Output Port (S/PDIF): 1
Line-in Port: 1
External Battery Port: 1
USB 2.0 Ports: 4
4-in-1 (SD/MMC/Memory Stick/Memory Stick Pro) Card Slot: 1
RJ 11 (LAN) Port: 1
RJ 45 (LAN) Port: 1

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Ch3. System information

Video
Intel 945GM Integrated Graphic Controller 64M/128M/256 with DVMT

Specifications may differ by model type.
DVMT - Dynamic Video Memory Technology

Sound
Realtek High Definition Audio Codec (ALC883)

Built-in Stereo Speakers

MODEM
Qcom/Actiontec, MD560LMI-2

RJ 11 Jack

LAN
Realtek RTL8111B 10/100/1000 Ethernet Controller

RJ 45 Jack

Weight
Full Installation: 2.7kg

Battery: About 320g

Weight descriptions may differ by model type.

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■System Block Diagram

Ch3. System information

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

M S 1034 VER:0C

NORTH

BRIDGE

BRIDGE

SOUTH

INTEL

Yonah 478

DDR-SO D IMM0

KBC

ENE 3910

533/667M HZ

HOST

DMI

Interface

945G M

PCI BUS

ICH7-M

INTEL

Dual Channel DDRII

400/533/667 MHZ

DDR-SO D IMM1

Dual Channel DDRII

400/533/667 MHZ

1466

652

1x Lane PCI-EXPR ESS

LPC BUS

LPC DUBUG

Page 3,4,5

Page 6,7,8,9,10

Page 12

Page 13

Page

17,18,19,20,21

Page 31

Page 31

CRT

LVD S

LVD S

VGA

Page 16

Page 16

TV_O U T

TV_DAC

Page 14

MINI CARD

Page 27

PCIE-LA N

Page 26

USB1.1/2.0

USB 0,1,2,3

Page 22

Connectors

Page 28

USB 4

Bluetooth

Page 27

Mini_P C IE

USB 5

PATA

DVD/CDRO M

Page 23

Page 23

HDD

O Z711M P

Page 24,25

1394 & 3 IN 1 CARD

Azalia

Internal SPK

MIC

LINE IN

Earphone

SPDIF Out

Internal MIC

Page 30 B IOS

Page 31Page 31

TP & KB

ISA

Page 34

SYS PO W ER

Page 35

Page 36

M A X 1999

O Z813

+1_8V S U N

SC 486

IS L6262

+3V +5V

CPU PO W ER

SMDDR_VTERM

CHARGER

Page 38

Page 35

VTT(1.05V )

DC JACK&Selector

+1_5V R U N

Page 37

R TL8111B

Page 28

MDC

A L C 882D

Page 29

33M H Z PCI

100M H Z PCIE

133/166M HZ HO ST

Page 15

CLK GEN

ICS 954310

14M H Z SB

14M H Z CRYSTAL

Cam era

USB 7

Page 22

SD/MMC/MS

M A X 1772

FING ERPRINT

USB 6

Page 28

MS-1034

0.A

BLOCK DIAGRAM

Custom

144Friday, February 17, 2006

Title

Size D ocum ent Number Rev

Date: Sheet of

MICRO-STAR INT'L CO .,LTD .

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 Fn key combinations

The following table shows the fun ction of ea ch com bin atio n of Fn with a function key.
Function of Fn keys has nothing to do with Operating System.

Ch3. System information

EndFn + PgDn

HomeFn + PgUp

Changes the status to System standby.Fn + F12

MUTE On/OffFn + F9

Increases the speaker volume. The volume can be adjusted within a 25 grade range.Fn + F8

Decreases the speaker volume. The volume can be adjusted within a 25 grade range.Fn + F7

Increases the LCD brightness. The brightness can be adjusted within a nine-grade range.Fn + F5

Decreases the LCD brightness. The brightness can be adjusted within a nine-grade
range.

Fn + F4

Switches between Touchpad Disable and
Touchpad-Enable. (The initialization takes 1 ~ 2 seconds. It is recommended that you
use it after initialization.)

Fn + F3

Switches the monitors. If you have an external monitor connected, press Fn + F2 keys to
rotate the display mode in order between Default LCD Only, External Only, and Both

Default LCD and External.

Fn + F2

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 Status indicators

Ch3. System information

The system status indicators sho w t he st at u s of the com p ut er

1. System On/Off/Standby lamp

- System on standby mode: Blue (Blinking)

- System ON: Off

2. Hard Disk Drive Lamp

- The lamp is turned on when the HDD is running.

Do not turn off the power forcibly while the hard disk drive lamp is on. Otherwise, the data may get impaired.

3. Battery status lamp: The lamp is turned on when the battery is charged.

- While the battery is being charged: Blue

- Charged more than 90%: Green (Blinking)

- Discharged: Off

- AC adapter connected, battery fully charged or removed: Off

- Charged less than 10%: Red

- In faulty state: Red (Blinking)

4. Num Lock lamp

- Num Lock lamp is turned on when you press Num Lock key, indicating the embedded numeric keys are
available. Num Lock lamp is turned off when you press Num Lock key again, indicating the numeric
keypad is not available.

5. Caps Lock lamp
Caps Lock lamp is on when the it is active. When this lamp is on, you can type uppercase letters without
holding Shift key.

6. Scroll Lock lamp

Scroll Lock lamp is on when the it is active.

7. Wireless LAN lamp

- Wireless LAN ON: Off

- Wireless LAN OFF: On

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 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

21

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.

 How to update flash ROM in Windows

Ch3. System information

22

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

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Ch3. System information

 BIOS Release Process and Making Bootable CD

1. LGE(Korea) will send BIOS Image (*.iso) to each Service Centers when we have a new revision.
(Please refer to the BIOS Table (Document No. SBE-HA-01) for latest BIOS)

2. Service center will make Bootable Image CD with Image file(*.iso) as below

a. Insert empty disc to CD-RW Drive and start Nero Burning ROM.

b. Select Disc Image or Saved Project.

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Ch3. System information

c. Select File Format as "Image Files(*.iso)".

d. Open Image File(*.iso) which is sent from LGE

25

Ch3. System information

e. Tab Next then burning will be started

f. Burn process completed as below, and tab “OK”

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Ch3. System information

 BIOS/EC Flash Process

1. Insert Bootable CD in PC, and Turn it on, then PC will boot by DOS mode as below
(If the EC is not correct or old version, then automatically update EC first and reboot again)

2. Type in Mode Name at the “WIP ID :” then press Enter key (You must use Capital Letter)
(You can see the Model Name in ID Label at the bottom Case of PC: “M/N: LMXX-XXXX”)

3. Type in Serial No at the “WIP ID :” then press Enter key (You must use Capital Letter)
(You can see the Serial No in ID Label at the bottom Case of PC: “S/N: 412KIXXXXXXXX”(13digits))

27

Ch3. System information

4. You can see the BIOS flash process as below

5. After flashing is completed, you can see the “PASS” on your screen, and reboot your PC

28

 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

29

 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