LG Electronics LW60, LW70 Ch1. Service information Read this first, „ What to do first

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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 :

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Contents LW60/70 LG Electronics Page „ Strategy for replacing a hard-disk drive Ch1. Service informationCh1. 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 Backup Standby RTC battery safety information Ch1. Service information Laser compliance statement„ What to do first Ch1. Service information Read this firstFollowings are not covered under warranty „ Front view Ch2. LocationsCh2. Locations „ Front view „ Right view 15.4 Ch2. Locations „ Rear view 15.4„ Left view 15.4 Ch3. System information „ SpecificationSystem „ System Block Diagram GMPage53HUNTER-W Fn + Ch3. System information „ Fn key combinationsSystem status indicators show the status of the computer Ch3. System information „ Status indicatorsCh3. 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 System Time Ch3. System information „ Main menu„ Security menu Ch3. System information „ Advanced menu„ Exit menu Ch3. System information „ Boot menu„ Power system checkout Ch4. Symptom-to-part indexCh4. Symptom-to-part index Ch4. Symptom-to-part index Terminal Voltage V dc Ground Symptom / Error FRU or action, in sequence Ch4. Symptom-to-part index „ Numeric error codesDMA 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 Ch5. Removing and replacing a part Removing and replacing a part FRUCh5. 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 1SZZBA4019F Ch5. Removing and replacing a part Optical Disk DriveCh5. 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 Ch6. Part lists 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