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Service Manual
(LW60/70)
LG Electronics
0
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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 Ch 4. Symptom-to-part index · Power system checkout · Numeric error codes · Error messages · LCD-related symptoms · Indeterminate problems Ch 5. Removing and replacing a part (FRU) Ch 6. Part list · Part list · Exploded view 1
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Ch1. Service information Chapter 1. Service information 1-1. Important service information Strategy for replacing parts (FRU-Field Replaceable Units) Before replacing parts Make sure that latest BIOS and drivers are installed before replacing any parts (FRUs) listed in this Use the following strategy to prevent unnecessary expense for replacing and servicing parts 1. If you are instructed to replacing a part but the replacement does not correct the problem, reinstall the original part before yo
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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
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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 r
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Ch1. Service information Electrical safety Observe the following rules when working on electrical equipment. Important Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock.
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Ch1. Service information · Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames. · Observe the special safety precautions when you work with very high voltages. These instructions are in the safety sections of maintenance information. Use extreme care when measuring high voltages. · Regularly inspect and maintain your electrical hand tools for safe operational condition. · Do not use worn or broken tools and tes
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Ch1. Service information Safety inspection guide The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service personnel from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-LG features or options not covered by this inspection guide. If any unsafe conditions are p
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Ch1. Service information Handling devices that are sensitive to electrostatic discharge Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge. Note Use product-specific ESD procedures wh
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Ch1. Service information 1-4. Laser compliance statement When a CD-ROM drive, DVD drive or the other laser product is installed, note the following : Caution Use of controls or adjustments or performance of procedures other than those specified here in might result in hazardous radiation exposure. Opening the CD-ROM drive, DVD-ROM drive or the other optical storage device could result in exposure to hazardous laser radiation. There are no serviceable parts inside those drives. Do not open Danger
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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
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Ch1. Service information The followings are not covered under warranty : · CD panel cracked from the application of excessive force or from being dropped · Scratched (cosmetic) parts · Distortion, deformation, or discoloration of the cosmetic parts · Cracked or broken plastic parts, broken latches, broken pins, or broken connectors caused by excessive force · Damage caused by liquid spilled into system · Damage caused by improper insertion of a PC Card or the installation of an incompatible car
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Ch2. Locations Chapter 2. Locations Front view (15.4") LCD latch LCD latch WLAN Antenna WLAN Antenna Mute LCD Volume Up Volume Down Power switch DVD, MUSIC Keyboard TouchPad TouchPad button Built-in MIC Built-in Speaker Built-in Speaker Remote Control Receiver 12
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Ch2. Locations Front view (17.1") LCD latch LCD latch WLAN Antenna WLAN Antenna Mute LCD Volume Up Volume Down Power Switch DVD, MUSIC Keyboard TouchPad TouchPad button Built-in MIC Built-in Speaker Built-in Speaker Remote Control Receiver 13
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Ch2. Locations Rear view (15.4", 17.1") LAN connector USB connector Line in / S/PDIF Modem connector AC connector S-VIDEO connector Left view (15.4", 17.1") Express Card eject button Parallel connector Express Card slot 4-in-1 Card slot VGA connector Fan louvers PC Card eject button PC Card slot Right view (15.4", 17.1") IEEE 1394 connector Headphone connector ODD eject button Security key hole ODD Emergency eject hole USB connector MIC connector IrDA port Security key hole (Kensington Lock)
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Ch3. System information Chapter 3. System information Specification -CPU · Dothan 1.6 ~ 2.1 GHz · μFCBGA - Main Chipset & Graphic · Intel 915GM,ICH6-M · Intel 915PM, ICH6-M, ATI Mobility Radeon X600 VGA Controller - Memory · 2SODIMM – Up to 2GB · DDR2 PC2-3200S/4200S Capable (400/533MHz) - HDD · 2.5” 9.5mm 40/60/80GB PATA Type - Communication · Modem, Daughter Card Type · Marvell Yukon PCI-E 10/100 Ethernet Controller on Board - Wireless LAN Solution · 802.11bg/abg Mini PCI Type, Quad-band Ant
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Ch3. System information System Block Diagram (GM) 16 1 2 3 4 5 6 CPU CORE VCC page53 HUNTER-W V1.2S / V1.5A page57 LEDs & Button A GMCH_CORE A CPU_IO page55 INSTANT DVD CK-410M PWR DOTHAN THERMAL FAN CONN page22 INSTANT AUDIO CPU_CORE SENSOR LAN DDR2 DC/DC 5V 3.3V page 5 page 5 page54 VOLUME UP PWR CK-SSCD page 2 - 4 CPU_IO CHG VOLUME DOWN page22 SYSTEM DC/DC ACIN 5V/3.3V MUTE page52 CAPS/NUM FSB 533MHz page 42 ACIN LOGIN SUB BOARD CHARGER LOGIC LCD CONN CPU_IO page52 3.3V page20 DDR2 400/533 M
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Ch3. System information System Block Diagram (PM) 17 1 2 3 4 5 6 CPU CORE VCC page53 HUNTER-W V1.2S / V1.5A page57 A LEDs & Button A GMCH_CORE CPU_IO page55 INSTANT DVD CK-410M PWR THERMAL FAN CONN DOTHAN page22 SENSOR LAN INSTANT AUDIO CPU_CORE DDR2 DC/DC 5V 3.3V page 5 page 5 page54 VOLUME UP PWR CK-SSCD page 2 - 4 CPU_IO CHG VOLUME DOWN page22 SYSTEM DC/DC ACIN MUTE 5V/3.3V page52 FSB 533MHz CAPS/NUM page 42 ACIN LOGIN CHARGER LOGIC SUB BOARD LCD CONN CPU_IO page52 3.3V page20 DDR2 400/533 M
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Ch3. System information Fn key combinations The following table shows the function of each combination of Fn with a function key. Function of Fn keys has nothing to do with Operating System. [Fn] + Description [F1] User-defined Hot key. (Setting is available at OSD) [F2] User-defined Hot key. (Setting is available at OSD) [F3] User-defined Hot key. (Setting is available at OSD) [F4] Force the computer to enter power-saving mode. (ex: system standby and hibernation) TouchPad Disable (Impossible
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Ch3. System information Status indicators The system status indicators show the status of the computer 3 12 45 6 7 1. Caps lock Caps lock indicator lights up when the Caps lock key is pressed. When this indicator lights up, you can type capital letters without pressing the Shift key. 2. Num lock Num lock indicator lights up when the combination of the Fn and Num lock key is pressed. When this indicator lights up, you can use the embedded numeric keys. (To use the numeric keys, you must ena
