LG Electronics LW70, LW60 service manual Ch1. Service information Safety notices

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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.

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Contents LW60/70 LG Electronics Page Ch1. Service information „ Strategy for replacing a hard-disk driveCh1. Service information Safety notices Ch1. Service information Safety information „ General safety Ch1. Service information „ Electrical safety Ch1. Service information Ch1. Service information „ Safety inspection guide „ Grounding requirements Ch1. Service information Laser compliance statement Backup Standby RTC battery safety informationCh1. Service information Read this first „ What to do firstFollowings are not covered under warranty Ch2. Locations „ Front viewCh2. Locations „ Front view „ Left view 15.4 Ch2. Locations „ Rear view 15.4„ Right view 15.4 „ Specification Ch3. System information„ System Block Diagram GM SystemPage53HUNTER-W Ch3. System information „ Fn key combinations Fn +Ch3. System information „ Status indicators System status indicators show the status of the computerCh3. System information „ Bios Flash Ch3. System information „ How to update flash ROM in Windows Ch3. System information Ch3. System information „ Bios Setup Ch3. System information „ Using the keys Ch3. System information „ Main menu System TimeCh3. System information „ Advanced menu „ Security menuCh3. System information „ Boot menu „ Exit menuCh4. Symptom-to-part index „ Power system checkoutCh4. Symptom-to-part index Ch4. Symptom-to-part index Terminal Voltage V dc Ground Ch4. Symptom-to-part index „ Numeric error codes Symptom / Error FRU or action, in sequenceDMA test failed System board 02F6 02F7 Ch4. Symptom-to-part index „ Error message Ch4. Symptom-to-part index „ LCD-related symptoms Ch4. Symptom-to-part index „ Indeterminate problems Removing and replacing a part FRU Ch5. Removing and replacing a partCh5. Removing and replacing a part Battery Pack Ch5. Removing and replacing a part Hard Disk Drive Then pull the HDD assembly out in the direction shown below Ch5. Removing and replacing a part Keyboard Ch5. Removing and replacing a part Ch5. Removing and replacing a part Bmdcmdc Modem Card Ch5. Removing and replacing a part Optical Disk Drive 1SZZBA4019FCh5. Removing and replacing a part Keyboard Deck Disconnect cable Disassemble the KBD Deck Assy Ch5. Removing and replacing a part Fan Assembly Ch5. Removing and replacing a part Wireless LAN Card Ch5. Removing and replacing a part Display Module Ch5. Removing and replacing a part 1SZZBA4097A Ch5. Removing and replacing a part Ch5. Removing and replacing a part Speaker Disconnect connector and remove Speaker Ch5. Removing and replacing a part Sub Board Ch5. Removing and replacing a part Main Board Remove Main Board 1SZZBA4080G Remove LCD Hook 1SZZBA4080F Ch5. Removing and replacing a part Remove LCD panel 1SZZBA4017A Ch5. Removing and replacing a part Remove Wlan Antenna Ch5. Removing and replacing a part Battery Pack Ch5. Removing and replacing a part Hard Disk Drive Ch5. Removing and replacing a part Ch5. Removing and replacing a part Keyboard Ch5. Removing and replacing a part Ch5. Removing and replacing a part Optical Disk Drive Ch5. Removing and replacing a part Wireless LAN Card Ch5. Removing and replacing a part Bmdcmdc Modem Card M2.0 X L3.0 Remove 7 screws FRU No Specification Qty Ch5. Removing and replacing a part Ch5. Removing and replacing a part Fan Assembly Ch5. Removing and replacing a part Display Module Ch5. Removing and replacing a part 1SZZBA4097A Ch5. Removing and replacing a part Ch5. Removing and replacing a part Speaker Disconnect connector and remove Speaker Ch5. Removing and replacing a part Sub Board Ch5. Removing and replacing a part Woofer Disconnect connector and remove Woofer Ch5. Removing and replacing a part Main Board 1SZZBZ4002B M2.5 X L6.0 Remove LCD Hook M2.0 X L3.0 1SZZBA4080G Remove LCD panel 1SZZBA4017A Ch5. Removing and replacing a part Remove Wlan Antenna Part lists Ch6. Part listsHWL18 400MHZ DDR2 Sdram with 32MX16 NMEM1 GIMMR00007A 100 101 102 103 104 105 HWL29 HWL12 HWL31 HWL11 HWL30 HWL10 HWL07 HWL27 HWL09 HWL22 HWL33 HWM20 HWM27 NRUB1 HWL32 HWM22 HWC08 HTM05 HWC07 HWM25 HWM24 HWM26 HTA04 HWM23 HWM31 HWM29 HWM30 HWM33 HWD02 HWM11HWM22 HWM06 HWM05 HWM23 HWM07 HWM04 HWC09 HTA07 HWM34 HWM08 HWM09 HWC04 NMEM1 HWC11 HWC13