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