LM40/50 LG Electronics
Service Manual
Ch 1. Service information Ch 2. Locations Ch 3. System information
Contents
· Specification · Model configuration · System Block Diagram
· Fn key combinations · Status indicators · BIOS Flash · BIOS Setup
Ch1. Service information
Chapter 1. Service information
1-1. Important service information
Strategy for replacing parts FRU-Field Replaceable Units
Ch1. Service information 1-2. Safety notices
Ch1. Service information 1-3. Safety information General safety
Ch1. Service information Electrical safety
· Do not use worn or broken tools and testers
Ch1. Service information
Ch1. Service information Safety inspection guide
Grounding requirements
Handling devices that are sensitive to electrostatic discharge
Ch1. Service information
· When handling ESD-sensitive parts
1-5. Backup Standby RTC battery safety information
Ch1. Service information 1-4. Laser compliance statement
Danger
What to do first
Ch1. Service information 1-6. Read this first
Important Notes
Ch1. Service information
The followings are not covered under warranty
Ch2. Locations
Chapter 2. Locations
Front view 15”
Front view 14.1”
Left view 15”/14.1”
Ch2. Locations Rear view 15”/14.1”
Right view 15”/14.1”
Security key hole Kensington Lock
Chapter 3. System information
Specification
Ch3. System information
Ch3. System information Model Configuration
Ch3. System information System Block Diagram
Ch3. System information Fn key combinations
14.1”15” a. AC Power
Ch3. System information Status indicators
b. Battery
c. Power
Ch3. System information BIOS Flash
Ch3. System information How to update flash ROM in Windows
Ch3. System information
9. After the restart, make sure the system BIOS is updated
Ch3. System information BIOS Setup
Main, Advanced, Security, Boot, Exit
Ch3. System information Default screen
Ch3. System information Using the keys
Ch3. System information Main Menu
· BIOS Version / KBC Version / UUID Number
· System Time
· System Date
· Legacy USB Support
Ch3. System information Advanced Menu
· TouchPad Support
· Internal Keypad
· Parallel Port
· Boot-time Diagnostic Screen
· Parallel port modes
Ch3. System information
· Set Supervisor Password
· Setting a password
Ch3. System information Security Menu
Ch3. System information
Power on Boot
Ch3. System information
· Set User Password
Ch3. System information
e. Press F10 to save the new settings
d. If the following message appears, press Enter
Ch3. System information
· Password on boot
Ch3. System information
Ch3. System information
· Set HDD Password
Ch3. System information
e. Press F10 to save the new settings
d. If the following message appears, press Enter
Ch3. System information
· Changing or removing a password
· CD-ROM Drive
Ch3. System information Boot Menu
· Removable Devices
· Hard Drive
Ch3. System information Exit Menu
· Load Setup Defaults
· Exit Saving Changes
· Exit Discarding Changes
· Save Changes
· Discard Changes
Ch3. System information
Ch4. Symptom-to-part index
Chapter 4. Symptom-to-part index
Power system checkout
· If the voltage is not correct, replace the AC adapter
Ch4. Symptom-to-part index
· The Characteristics of the battery pack 1. Self-discharge
Ch4. Symptom-to-part index
+0V ~ +12.6V
Ch4. Symptom-to-part index
5+ 4 3 2
Symptom / Error
Ch4. Symptom-to-part index Numeric error codes
FRU or action, in sequence
Symptom / Error
Ch4. Symptom-to-part index
FRU or action, in sequence
Symptom / Error
Ch4. Symptom-to-part index
FRU or action, in sequence
Symptom / Error
Ch4. Symptom-to-part index Error message
FRU or action, in sequence
Symptom / Error
Ch4. Symptom-to-part index LCD-related symptoms
FRU or action, in sequence
Ch4. Symptom-to-part index Indeterminate problems
Ch5. Removing and replacing a part
Chapter 5. Removing and replacing a part FRU
Danger
Ch5. Removing and replacing a part 1010 Battery Pack
Remove the following parts in order before replacing this part
Ch5. Removing and replacing a part 1020 Hard Disk Drive
Remove the following parts in order before replacing this part
Ch5. Removing and replacing a part 1030 Retainer
Ch5. Removing and replacing a part
Ch5. Removing and replacing a part
3. Disconnect the keyboard connector
a. Battery Pack1010 b. Keyboard1030
Ch5. Removing and replacing a part 1040 Retainer
Remove the following parts in order before replacing this part
Remove the following parts in order before replacing this part
Ch5. Removing and replacing a part 1050 Fan Assembly
Ch5. Removing and replacing a part
Ch5. Removing and replacing a part
1060-1 Optical Disk Drive 15” Model
Remove the following parts in order before replacing this part
Ch5. Removing and replacing a part
1060-2 Optical Disk Drive 14.1” Model
Remove the following parts in order before replacing this part
Remove the following parts in order before replacing this part
Ch5. Removing and replacing a part 1070 Wireless LAN Card
Remove the following parts in order before replacing this part
Ch5. Removing and replacing a part 1080 MDC Modem Card
Remove the following parts in order before replacing this part
Ch5. Removing and replacing a part 1090 Display Module
Ch5. Removing and replacing a part
Specification
2. Remove two hinge cover screws
FRU No
Ch5. Removing and replacing a part
Specification
4. Remove two hinge screws
FRU No
4. Remove the LCD cable
Ch5. Removing and replacing a part
Ch5. Removing and replacing a part
Display Module disassembly in detail
7. Hold the LCD with your both hands, and pull it up to remove
Screw Type
Ch5. Removing and replacing a part 1100 Keyboard Deck
Remove the following parts in order before replacing this part
Screw Type
Ch5. Removing and replacing a part 14.1”
Screw Type
Ch5. Removing and replacing a part
Specification
2. Open the I/O port cover and remove two screws
FRU No
Ch5. Removing and replacing a part
Specification
3. Remove 3 screws
FRU No
Ch5. Removing and replacing a part
Ch5. Removing and replacing a part
Remove the following parts in order before replacing this part
Ch5. Removing and replacing a part 1110 Main Board
Ch5. Removing and replacing a part
3. Remove the RTC battery connector from Main Board
2. Remove the PCMCIA board
Ch5. Removing and replacing a part
4. Remove the S-Video connector 5. Remove the LAN S/B connector
Specification
6. Remove the power cable 7. Remove 4M/B screws
Ch5. Removing and replacing a part
FRU No
8. Hold M/B with your both hand and pull it up to remove
Ch5. Removing and replacing a part
Remove the following parts in order before replacing this part
Ch5. Removing and replacing a part 1120 Battery Frame Assembly
Ch5. Removing and replacing a part
Remove the following parts in order before replacing this part
Ch5. Removing and replacing a part 1130 S-Video Sub-Board
Remove the following parts in order before replacing this part
Ch5. Removing and replacing a part 1140 Display Module
Ch5. Removing and replacing a part
Ch5. Removing and replacing a part
Ch5. Removing and replacing a part
Ch5. Removing and replacing a part
6. Remove LCD from the LCD rear panel
Ch5. Removing and replacing a part
Ch6. Part lists 2004. 4. 28. MKB21
Chapter 6. Part lists
Taiwan
Ch6. Part lists
Ch6. Part lists
Ch6. Part lists
Portugal,Spain
Ch6. Part lists
Germany,Iran
Ch6. Part lists
Ch6. Part lists
3301BZ9092A
Ch6. Part lists
SPECIFICATION
MKL27 MKL29 MKL22 MKL23 MKL31 MKL15 MKL28 Case LCD
Case LCD
Location
SPECIFICATION
MKL12 MKM23 MKL17 MKL31 MKL15 MKL14
Case LCD
Case LCD
MKL2414.1
MKM22 MKM22 MKL16 MKL06 MKL05 MKL04 MKM23 MKL18 MKM23 MKL13 MKM23
MKL2014.1
MKL0215.0
Location
SPECIFICATION
LG P/N
REMARKS
MKM22
MKL07 MKL07
MKL07
MKL08
MKB01 MKC05 MKC04
MKM32 MKM38
MKM19
MKC04
Location
SPECIFICATION
LG P/N
REMARKS
MKH02 MKM27 MKM27 MKH03
MKM2314 MKM3215 MKM12 MKM29 MKC07 MKC10 MKS05 MKM19 MKM17 MKM18 MKH04
MKM38
MKC02 15 ODD I/F MKM16
Location
SPECIFICATION
LG P/N
REMARKS
GASKET ON MINI-PCI ANTENNA CONNECTOR
SPECIFICATION
Location
LG P/N
MKM31 MKM32 MKM33 ODD MKD01 MKM39 MKD03 MKD04
Location
SPECIFICATION
LG P/N
REMARKS
MKM0615.0 MKM0714.1 MKM32 MKM09 MKM30 MKM10 MKM11
MKC08 MKM32 MKM08 MKM30
Location
SPECIFICATION
LG P/N
REMARKS
Location
SPECIFICATION
LG P/N
REMARKS
MKM05 MKC06
MKM30 MKM33
MKM33 MKM30 MKM28 MKM33 MKC01 MKM33 MKM34 MKM19
MKC11 MKC13
Location
SPECIFICATION
LG P/N
REMARKS
Location
SPECIFICATION
LG P/N
COVER, ASSY DDR MEMORY