LG Electronics LS70 service manual Ch1. Service information Safety information „ General safety

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Ch1. Service information

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

8centimeters(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 customer.

Caution

Metal objects are good electrical conductors.

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Contents LS70 LG Electronics Page „ Strategy for replacing a hard-disk drive Ch1. Service informationBefore replacing parts Ch1. 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 statementImportant Notes Ch1. Service information Read this first„ What to do first Followings are not covered under warranty „ Front view Ch2. Locations„ Left view Ch2. Locations „ Rear view„ Right view Security key hole Kensington LockCh3. System information „ SpecificationCh3. System information „ System Block Diagram Ch3. System information „ Fn key combinations System 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 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 Ch5. Removing and replacing a part Wireless LAN Card 1SZZBA4097A Ch5. Removing and replacing a part KeyboardDisconnect Keyboard Connector and remove Keyboard Ch5. Removing and replacing a part Retainer Disconnect Retainer Connector and remove Retainer Ch5. Removing and replacing a part Keyboard Plate Ch5. Removing and replacing a part FAN Assembly Ch5. Removing and replacing a part Hinge Cover Ch5. Removing and replacing a part Display Module Remove Display Module Ch5. Removing and replacing a part 110 0 Key Deck 1SZZBZ4014A Ch5. Removing and replacing a part Optical Disk Drive Ch5. Removing and replacing a part Audio Board Ch5. Removing and replacing a part HDD Cover Block L Ch5. Removing and replacing a part Hinge Frame L Ch5. Removing and replacing a part Main Board Ch5. Removing and replacing a part Ch5. Removing and replacing a part Ch5. Removing and replacing a part Video Board 1SZZBA4080F Ch5. Removing and replacing a part 1SZZBZ3002W Ch5. Removing and replacing a part 1SZZBA4017A Ch6. Part lists Part lists400MHZ DDR2 Sdram with 32MX16 NMEM1 Common Bezel for Bran NB-PC HTA05 HFC07 Oversea EXPORT, Slim Type HFC11 HFD03 HFM20 HUNTER-FULL 15 Inch Cover Rear Assy Exploded ViewExploded View DAC-08B073 Delta HUNTER-TL 15 Inch OZ1060S KUBNKM095A Alps InverterKUBNKM094A Alps Inverter DAC-08B072 Delta InverterExploded View ISP Style B WVA P3 Plant ISP Style B WVAWVA ISP Style B PLATE, Display Rear Hunter 150 FullCase Assy, Front Exploded View DDR2 Sdram with 32MX16 HYS64T32000HDL-5-A Infineon 200P Sodimm BK64MX64 400MHZ DDR2 Sdram with 32MX16 32MX64 533MHZ DDR2 Sdram with 32MX16N HUNTER-FULL 15 Inch Bottom Case Assy 150F RH80536GE0362M LG Intel 478P Ufcpga Tray NT CPU PENTIUM-MHUNTER-FULL 15 Inch MG Hinge ,FRAME Left HUNTER-FULL 15 Inch Hinge Frame Assy RightExploded View MHT2040AT PL Fujitsu 40GB Eide Inner ZEBRA/MACKINLEY/K2 HUNTER-WIDE 15.4 Inch HDD SUS 17.1W, 15FHTS424040M9AT00 Hgst 40GB Eide Inner Mckinly 4200RPM MHT2060AT PL Fujitsu 60GB Eide Inner ZEBRA/MCKINLEY/K2HUNTER-WIDE 15.4 Inch Pcabs HDD Block FAN AssemblyExploded View HUNTER-FULL Plate KBD Assy HUNTER-FULL 15 Inch KBD Deck Total AssyCentrino Label NT 252352-002 Intel POP Label LS70 PM IPS for DomesticHUNTER-WIDE 15.4 Inch Pcabs KBD Deck BUTTON, Touchpad HUNTER-FULL 15 Inch Speaker Total AssyExploded View HUNTER-F LG-IBM OKI English KEY HUNTER-F LG-IBM OKI Korea KEYTaiwan Hunter F OKI 87KEY Russian Hunter F OKI 86KEYExploded View 4800MAH 3S-2P LGC LI-ION Cylinderical HUNTER-ALL Cell LGC SP-022+IS-034+H05VV-F3G I-SHENG Gost 1800MM 3P CONN. Black PF8B1CIJ10A-060 Longwell Gost 1830MM 3PIN CONN. BlackPL8B1S3J10A-060 Longwell SAA 1830MM 3PIN Conn Black SP-502B+H05VV-F+IS-034 I-SHENG SAA 1830MM 3PIN CONN. BlackID Label Hunter 15T China from Lgeks ID Label Hunter 15T Lgeks Made in ChinaID Label Hunter 15T China from Lgept Exploded View Screw M2.5 * L8.0 hinge