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LG TX Service Manual
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LG TX Service Manual

LG TX Service Manual

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Service Manual
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LG Electronics
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Summary of Contents for LG TX

  • Page 1 Service Manual (TX) LG Electronics...
  • Page 2 Contents Ch 1. Service information Ch 2. Locations Ch 3. System information · Specification System Block Diagram · Fn key combinations · Status indicators · BIOS Flash · BIOS Setup · Ch 4. Symptom-to-part index Power system checkout · Numeric error codes ·...
  • Page 3 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.
  • Page 4 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.
  • Page 5 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.
  • Page 6 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.
  • Page 7 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.
  • Page 8 Insulation must not be frayed or worn. 4. Remove the cover. 5. Check for any obvious non-LG alterations. Use good judgment as to the safety of any non-LG alterations. 6. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.
  • Page 9 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.
  • Page 10 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.
  • Page 11 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.
  • Page 12 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 ·...
  • Page 13 Ch2. Locations Chapter 2. Locations Front view (15") 1. LCD Monitor 2. Keyboard 3. Touch pad 4. Using 5-in-1 (XD / SD / MMC / Memory Stick / Memory Stick Pro) Card 5. Touch pad button 6. Wireless LAN/Bluetooth antenna ※...
  • Page 14 Ch2. Locations Left view 1. VGA Connector 2. Fan louvers 3. Security keyhole 4. USB Connector 5. Power button Right view 1. Volume up/down/mute button 2. SRS button 3. Headphone Connector / S/PDIF 4. Microphone connector 5. Line-In connector 6. USB Connector 7.
  • Page 15 Ch3. System information Chapter 3. System information Specification - CPU · Intel P-M ULV Processor 733/753 (1.1/1.2GHz) Dothan 90nm, 400MHz FSB, 2MB L2 · Intel Cel-M ULV Processor 383 (1.0GHz) Dothan 90nm, 400MHz, 1MB L2 - Main Chipset & Graphic ·...
  • Page 16 Ch3. System information System Block Diagram...
  • Page 17 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]+[F1] User defined Hot key. (Setting is available at OSD) User setting available in OSD.
  • Page 18 Ch3. System information Status indicators The system status indicators show the status of the computer 1. Num Lock Indicator - By pressing [Fn]+[Num Lk] keys, you can enable the embedded numeric keypad. By pressing [Fn]+[Num Lk] keys again, you can disable the embedded numeric keypad. 2.
  • Page 19 Ch3. System information 6. Battery status indicator: Recharging the battery (The indicator is on when recharging the battery. - Recharging the battery : Orange - Battery is charged over 90% : Orange, Green Indicator blinking - Discharge : OFF - AC Adaptor is connected with full battery or no battery : Green - Discharging the battery or the battery is charged under 10% : Green indicator blinking - Battery Malfunction : Red blinking ※...
  • Page 20 Ch3. System information BIOS Flash You can update BIOS using a floppy disk drive. Because this system is not equipped with any floppy disk drive, you have to use an external USB drive for a BIOS update. In order to boot up with an USB drive, please set Removable Device as the first boot up drive in the boot menu of BIOS setup.
  • Page 21 Ch3. System information How to update flash ROM in Windows 1. Quit all running programs. 2. Start WINPHLASH.EXE. 3. Select the procedure you want : a. Backup BIOS and Flash BIOS with new settings b. Backup BIOS Only 4. Specify the locations for backup and new BIOS files in BIOS Setting Locations. a.
  • Page 22 Ch3. System information 8. After the completion, ‘System BIOS was successfully updated’ appears on the screen, then the computer restarts. 9. After the restart, make sure the system BIOS is updated. 10. If your computer does not restart automatically, turn off your computer and then turn it back on by pressing power button.
  • Page 23 Ch3. System information BIOS Release Process and Making Bootable CD 1. LGE(Korea) will send BIOS Image (*.iso) to each Service Centers when we have a new revision. (Please refer to the BIOS Table (Document No. SBE-HA-01) for latest BIOS) 2. Service center will make Bootable Image CD with Image file(*.iso) as below a.
  • Page 24 Ch3. System information c. Select File Format as "Image Files(*.iso)". d. Open Image File(*.iso) which is sent from LGE...
  • Page 25 Ch3. System information e. Tab Next then burning will be started f. Burn process completed as below, and tab “OK”...
  • Page 26 Ch3. System information BIOS/EC Flash Process 1. Insert Bootable CD in PC, and Turn it on, then PC will boot by DOS mode as below (If the EC is not correct or old version, then automatically update EC first and reboot again) 2.
  • Page 27 Ch3. System information 4. You can see the BIOS flash process as below 5. After flashing is completed, you can see the “PASS” on your screen, and reboot your PC...
  • Page 28 2. to replace the backup battery 3. system configuration error occurs 4. to change the boot order 5. to set/change a password Press the power button. When the LG logo appears on the screen, press and enter the BIOS Setup Utility.
  • Page 29 Ch3. System information Using the keys The keys used in the BIOS Setup Utility and their functions are described at the bottom. · : General Help Display the descriptions of the keys used in the setup utility. · : Select Item Navigate and select items in the setup utility.
  • Page 30 Ch3. System information Main menu System Time Current time. Use <Tab>, <Shift-Tab>, or <Enter> keys to move around these fields. To change the value, press <+> or <−> key. System Date Today date. Use <Tab>, <Shift-Tab>, or <Enter> keys to move around these fields. To change the value, press <+>...
  • Page 31 Ch3. System information Advanced menu Legacy USB Support There are two options to this field: Enabled, and Disabled. This field allows you to enable or disable the legacy USB support. Boot-time Diagnostic Screen Enables the Boot-time Diagnostic Screen. Battery Charge Stop Percentage Set Battery Charge Stop Percentage.
  • Page 32 Ch3. System information Boot menu Boot menu enables you to set the boot order for the CD-ROM drive, Removable devices Hard drive, and Network boot as shown below. Boot Priority order / Excluded from boot order Up and Down arrows select a device. <+> and <-> moves the device up or down. <f> and <r> specifies the device fixed or removable.
  • Page 33 Ch4. Symptom-to-part index Chapter 4. Symptom-to-part index The symptom-to-part index in this section lists symptoms and errors and their possible causes. The most likely cause is listed first. Note If replacing a part (FRU) does not solve the problem, put the original part back in the computer. Do not replace a non-defective FRU.
  • Page 34 Ch4. Symptom-to-part index To check the AC adapter, do the following : 1. Unplug the AC adapter cable from the computer. Voltage (V dc) 2. Measure the output voltage at the plug of the +18.0 ~ +19.2 AC adapter cable. See the following figure : Ground 3.
  • Page 35 Ch4. Symptom-to-part index · If the voltage is not correct, replace the AC adapter. · If the voltage is acceptable, do the following : 1. Replace the system board. 2. If the problem persists, check the AC adapter whether it is correct product or not. Note Noise from the AC adapter does not always indicate a defect.
  • Page 36 Ch4. Symptom-to-part index · The Characteristics of the battery pack 1. Self-discharge The battery gradually loses its power over time without ever being used. 2. Periodic full discharge / charge Frequent recharge of the battery pack can reduce the capacity of the battery pack. When this happens, you can perform the full discharge / charge to improve the capacity.
  • Page 37 Ch4. Symptom-to-part index · To check the battery pack, do the following : 1. Power off the computer. 2. Remove the battery pack and measure the voltage between battery terminals 1(-) and 5(+). See the following figure : Terminal Voltage (V dc) Ground(-) +0V ~ +12.6V 5(+)
  • Page 38 Ch4. Symptom-to-part index Numeric error codes Symptom / Error FRU or action, in sequence 0200 1.Reset the hard-disk drive. Fixed disk failure 2.Load Setup Defaults in BIOS Setup Utility. (The hard disk is not working) 3.Hard-disk drive. 4.System board. 0210 1.Check the keyboard if it is pressed.
  • Page 39 Ch4. Symptom-to-part index Symptom / Error FRU or action, in sequence 0251 Replace the backup battery and run BIOS Setup Utility System CMOS checksum bad to reset the time and date. – System CMOS checksum is not correct. – Default configuration used. 0252 Reset the password by running BIOS Setup Utility.
  • Page 40 Ch4. Symptom-to-part index Symptom / Error FRU or action, in sequence 02F7 1. DIMM Fail – Safe timer NMI failed 2. System board 0611 1. Load Setup Defaults in BIOS Setup Utility. IDE configuration changed 2. System board. 0612 1. Load Setup Defaults in BIOS Setup Utility. IDE configuration error 2.
  • Page 41 Ch4. Symptom-to-part index Error message Symptom / Error FRU or action, in sequence Device address conflict. 1. Load Setup Defaults in BIOS Setup Utility. 2. Backup battery. 3. System board. Allocation error for device. 1. Load Setup Defaults in BIOS Setup Utility. 2.
  • Page 42 Ch4. Symptom-to-part index LCD-related symptoms Note Before removing or disassembling LCD, power off the computer, unplug all power cords from electrical outlets, remove the battery pack also. Symptom / Error FRU or action, in sequence LCD screen becomes dark suddenly. Check out Battery Miser.
  • Page 43 1. Power off the computer 2. Visually check each FRU for damage. Replace any damaged FRU. 3. Remove or disconnected all of the following devices : a. Non-LG devices. b. Printer, mouse, and other external devices. c. Battery pack. d. PC cards.
  • Page 44 Ch5. Removing and replacing a part Chapter 5. Removing and replacing a part (FRU) Danger Before removing any FRU, power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Caution Before the computer is powered on after FRU replacement, make sure that all screws, springs, and other small parts are in place and are not loose inside the computer.
  • Page 45 Ch5. Removing and replacing a part ■ 1010 Battery Pack 1. Push the Battery latch in the direction shown below; then slide the battery pack out of the slot.
  • Page 46 Ch5. Removing and replacing a part ■ 1020 Keyboard ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) 1. Remove 2 screws. FRU No. Specification 1SZZBA4122A M2.0 x L5.0 2. To remove 4 hooks, insert a (-) type screwdriver into a hook located at the upper end of keyboard, and pull it up.
  • Page 47 Ch5. Removing and replacing a part 3. Disconnect the Keyboard Connector. 4. Remove the Keyboard.
  • Page 48 Ch5. Removing and replacing a part ■ 1030 WLAN Card ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) 1. Remove the Gasket. 2. Disconnect the Antenna Cable.
  • Page 49 Ch5. Removing and replacing a part 3. Remove the WLAN Card.
  • Page 50 Ch5. Removing and replacing a part ■ 1040 MDC Card ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) 1. Remove 2 screws. FRU No. Specification 1SZZBA4017E M2.0 x L3.0 2.
  • Page 51 Ch5. Removing and replacing a part...
  • Page 52 Ch5. Removing and replacing a part ■ 1050 Micro DIMM ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) 1. Remove 2 screws. FRU No. Specification 1SZZBA4017E M2.0 x L3.0 2.
  • Page 53 Ch5. Removing and replacing a part ■ 1060 Keydeck ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) 1. Remove 12 screws. FRU No. Specification 1SZZBA4121B M2.5 x L4.0...
  • Page 54 Ch5. Removing and replacing a part ■ 1070 DMB Module ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) f. Keydeck(1060) 1. Remove 4 screws, then remove 2 plates. FRU No.
  • Page 55 Ch5. Removing and replacing a part 2. Remove 4 screws. FRU No. Specification 1SZZBA4041A M2.0 x L3.0 3. Disconnect the Antenna Cable.
  • Page 56 Ch5. Removing and replacing a part...
  • Page 57 Ch5. Removing and replacing a part ■ 1080 Display Module ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) f. Keydeck(1060) g. DMB Module(1070) 1.
  • Page 58 Ch5. Removing and replacing a part...
  • Page 59 Ch5. Removing and replacing a part ■ 1090 HDD ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) f. Keydeck(1060) g. DMB Module(1070) h. Display Module(1080) 1.
  • Page 60 Ch5. Removing and replacing a part...
  • Page 61 Ch5. Removing and replacing a part ■ 1100 Fan Assembly ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) f. Keydeck(1060) g. DMB Module(1070) h. Display Module(1080) i.
  • Page 62 Ch5. Removing and replacing a part ■ 1110 5-in-1 Card Reader ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) f. Keydeck(1060) g. DMB Module(1070) h. Display Module(1080) i.
  • Page 63 Ch5. Removing and replacing a part ■ 1120 Button Sub Board ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) f. Keydeck(1060) g. DMB Module(1070) h. Display Module(1080) i.
  • Page 64 Ch5. Removing and replacing a part ■ 1130 Bluetooth Module ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) f. Keydeck(1060) g. DMB Module(1070) h. Display Module(1080) i.
  • Page 65 Ch5. Removing and replacing a part 2. Remove the Bluetooth Module.
  • Page 66 Ch5. Removing and replacing a part ■ 1140 RTC Battery ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) f. Keydeck(1060) g. DMB Module(1070) h. Display Module(1080) i.
  • Page 67 Ch5. Removing and replacing a part ■ 1150 Speaker ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) f. Keydeck(1060) g. DMB Module(1070) h. Display Module(1080) i.
  • Page 68 Ch5. Removing and replacing a part 2. Remove the Speakers.
  • Page 69 Ch5. Removing and replacing a part ■ 1160 Main Board ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) f. Keydeck(1060) g. DMB Module(1070) h. Display Module(1080) i.
  • Page 70 Ch5. Removing and replacing a part 2. Remove the Main Board.
  • Page 71 Ch5. Removing and replacing a part...
  • Page 72 Ch5. Removing and replacing a part...
  • Page 73 Ch5. Removing and replacing a part...
  • Page 74 Ch5. Removing and replacing a part ■ 1170 Display Exploded View ※ Remove the following parts in order before replacing this part a. Battery Pack(1010) b. Keyboard(1020) c. WLAN Card(1030) d. MDC Card(1040) e. Micro DIMM(1050) f. Keydeck(1060) g. DMB Module(1070) h. Display Module(1080) 1.
  • Page 75 Ch5. Removing and replacing a part 3. Remove 2 screws. FRU No. Specification 1SZZBA4118A M2.5xL3.5 1SZZBA4117A M2.0xL3.5...
  • Page 76 Ch5. Removing and replacing a part 4. Remove 3 screws. FRU No. Specification 1SZZBA4118A M2.5xL3.5 1SZZBA4117A M2.0xL3.5 FRU No. Specification 1SZZBA4118A M2.5xL3.5...
  • Page 77 Ch5. Removing and replacing a part 5. Remove a screw. FRU No. Specification 1SZZBA4118A M2.5xL3.5...
  • Page 78 Ch5. Removing and replacing a part 6. Remove 8 screws, then remove the LCD Brackets. FRU No. Specification 1SZZBA4116A M2.0xL2.2...
  • Page 79 Ch5. Removing and replacing a part 6. Remove the LCD Cable.
  • Page 80 Ch5. Removing and replacing a part 7. Remove 4 screws, then remove the WLAN Antenna and Bluetooth Antenna. FRU No. Specification 1SZZBA4116A M2.0xL2.2...
  • Page 81 Ch6. Part lists Chapter 6. Part lists Location Specifications Remarks NMEM1 0IMMR00184A HYS64T64020HM-3.7-A INFINEON 214P MICRO-DIMM BULK 512MB 64 NSCR1 1SZZBA4017E + D2.0 L3.0MM SWRH4 / [BK] DISPLAY BK [S-PJT] #0 TIP ESCR1 1SZZBA4019L + D3.8 L4.5MM SWRH4 PCB ETC.. FIX YL HUNTER WIDE M2 ROHS External NSCR2 1SZZBA4041A...
  • Page 82 Ch6. Part lists Location Specifications Remarks NKBD1 3823B00397A HEBREW EVEREST OKI NKBD1 3823B00398A FRENCH EVEREST OKI NKBD1 3823B00399A PORTUGESE EVEREST OKI NKBD1 3823B00400A NORWAY EVEREST OKI NKBD1 3823B00401A SWEDEN/FINLAND EVEREST OKI NKBD1 3823B00402A DENMARK EVEREST OKI NKBD1 3823B00403A CANADIAN FRENCH EVEREST OKI NKBD1 3823B00404A TURKEY EVEREST OKI...
  • Page 83 Ch6. Part lists Location Specifications Remarks NNOBS 4940BM4205A EVEREST PC SWITCH SRS KNOB NNOBB 4940BM4206A EVEREST PC BATTERY KNOB NNOBH 4940BM4207A EVEREST PC HOLD BATTERY KNOB NSPRB 4970BW4570A WD0.25MM ID3.0MM N9 L11.0MM 0.6KGF WINDRIVER BATEERY SPRIN NGSK1 4986BZ4187C EMI FABRIC 6 X 10 X 3.0T OLYMPUS AUDIO NGSK2 4986BZ4187D EMI FABRIC 6 X 10 X 1.5T OLYMPUS AUDIO...
  • Page 84 EMI FABRIC 6*20, 1T MCKINLEY ENTRY & ALVISO UPPER PCMCIA SUB BD (SD SOCKET) NCVRL 5006BM3043A COVER EVEREST HINGE LEFT NCVRR 5006BM3044A COVER EVEREST HINGE RIGHT NCSN4 4850BZ4086A EVEREST SPONGE DISPLAY ANTENNA CUSHION NSETR 3858BP4544A . EVEREST BADGE LG LOGO.
  • Page 85 NBATM...
  • Page 86 NSCRM NSCRK NSCRM NSCRM NSCRM NSCRK NSCRM NSCRM...
  • Page 87 NKBD1...
  • Page 88 NSCRM NCSEK...
  • Page 89 NCAPL NCABH NCAPR NCSNH NHDD1...
  • Page 90 NSCR1 NSCR1 NSCR2 NSCR2 NDMB1 NFAN1 NBLU1 NSCR1 NCABM NBATC NMDM1...
  • Page 91 NSCR1 NSPKE NMEM1 NLAN1 NSUBW NSCR1 NSPKE NSUBV...
  • Page 92 NPLT2 NMLB1 NPLT1...
  • Page 93 NNOBB NSPRB NSETB NNOBA NNOBH NNOBB NNOBH NGSK1 NNOBS...
  • Page 94 NSETF NCVRL NCVRR...
  • Page 95 NCSNF NCSNF NSCRR NSCRR NCSNF NSCRR NSCRR NCSEF...
  • Page 96 NSCRR NNVE1...
  • Page 97 NSCRR NSCRR NSCRQ NSCRR NSCRQ...
  • Page 98 NSCRS NBRKL NSCRS NHNGL NHNGR NBRKR...
  • Page 99 NANTL NANTB NANTR NCSN4 NSETR NCSN1 NCSN2 NGSK4 NCSN3 NCSER NANTD...
  • Page 100 NCABL NLCD1...
  • Page 101 EFOT1 EFOT1 ECSET ELBL1 EODD1 EETCB EETCS EETCH ECSEB ESUBM EPLT1 ECABU...