Manual LG Electronics LM50

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  • LG Electronics LM50 - page 1

    0 Service Manual (LM40/50) LG Electronics ...

  • LG Electronics LM50 - page 2

    1 Ch 1. Service information Ch 2. Locations Ch 3. System information · Specification · Model configuration · System Blo ck Diagram · Fn key combinations · Status indicators · BIOS Flash · BIOS Setup Ch 4. Sym ptom-to-part index · Pow er system checkout · Numeric error codes · Error messages · LCD-related sy mptoms · Indeterminate proble ...

  • LG Electronics LM50 - page 3

    2 Chapter 1. Servic e information 1-1. Important service information  Strategy for replacing parts (FRU-Field Replaceable Units) Before repl acing parts Make sure that latest BIOS and driv ers are ins talled before replac ing any parts (FRUs ) listed in this Caution The BIOS con figuration on the computer you are servi cing may ha ve been custom ...

  • LG Electronics LM50 - page 4

    3 1-2. Safety notices Warnin g Before the co mputer is powered-on afte r part (FRU) replacement, make sure all scr ews, springs, and other sma ll parts ar e in place and are not left loose ins ide the compute r. Veri fy this by shaking the computer and listening for rattling s ounds. Metallic parts or metal flakes can cause electrical shorts. Warni ...

  • LG Electronics LM50 - page 5

    4 1-3. Safety information  General safety Follow these rules to ensure general safe ty · Obser ve good housekeeping in the area o f the mach ines during and a fter ma intenance. · When lifting any heavy object 1. Ensure you can s tand safely without slipping. 2. Di stribute the weight of the object equally between your feet. 3. Use a slow lift ...

  • LG Electronics LM50 - page 6

    5  Electrical safety Observe the following rules when working on e lectrical equ ipment. Important Use only approv ed tools and tes t equipment. So me hand tools ha ve handles cove red with a so ft material that does not insulate you when working with live electrical currents. Many customers have, near thei r equipment, rubber floo r mats that c ...

  • LG Electronics LM50 - page 7

    6 · Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor str ips and machine fr ames. · Obser ve the spec ial safety p recautions when you work with ve ry high vo ltages. The se instructions are in the safety sections of maintenance info rmation. Us e extreme ca re when measuring high vol ...

  • LG Electronics LM50 - page 8

    7  Safety inspection guide The purpose of this inspection guide is to assi s t you in identifying potentially unsa fe conditions. As each machine was des igned and built, required safety ite ms were in stalled to p rotect users and ser vice personnel fr om injury. T his guide addresses only those ite ms. You should use good judgment to identify ...

  • LG Electronics LM50 - page 9

    8  Handli n g devices that ar e sen si tive to electrostatic discharge Any computer par t containing trans istors o r integ rated cir cuits (ICs) should be conside red sensiti ve to electros tatic discharge (ESD). ESD damage can occur when there is a dif ference in charge between objects. Protect against ESD damage by equalizing the c harge so t ...

  • LG Electronics LM50 - page 10

    9 When a CD-R OM dri ve, DVD drive or the othe r laser pr oduct is ins talled, note the following : Caution Use of controls or adjustments or perfor mance of procedures other than those specif ied here in might result in hazardous radiation exposure. 1-4. Laser compliance statement Opening the CD-R OM drive, D VD-ROM d rive or the othe r optical st ...

  • LG Electronics LM50 - page 11

    10 1-6. Read this first Before you go to the checkout guide, be sure to read th is section . Important Notes · Only trained personnel ce rtified by LG shou ld servic e the co mputer. · Read the entire FRU remo val and replacement page before replac ing any FRU. · Use new nylon-coated screws when you replace FRU s. · Be extrem ely careful dur in ...

  • LG Electronics LM50 - page 12

    11 The followings are not cov ere d und er warranty : · CD panel crac ked from the application of ex cessi ve force or from being dropped · Scratched (cosmetic ) parts · Distortion, deform ati on, or di scol oratio n of the cosmetic p arts · Cracked o r broken plastic parts, broken la tches, broken pins , or b roken connectors caused by exc ess ...

  • LG Electronics LM50 - page 13

    12 LCD Power sw itch Volume Down Keyboa rd TouchPad TouchPad button Built-i n speakers Volume Up  Front view (15”) Chapter 2. Locations Ch2. Locations Power- saving mode switch IrDA port LCD Power sw itch Volume Down Keyboa rd TouchPad TouchPad button Built-i n speakers Volume Up  Front view (14.1”) Power- saving mode switch IrDA port ...

  • LG Electronics LM50 - page 14

    13 PC ca rd eject button USB port ODD ODD t ray open button IEEE1394 port SD memor y Card slo t Micro phone jack Key ho le (Kensington Lo ck) Ch2. Locations  Right view (15”/14.1”) Security ke y hole (Kensington Lock) User can attach a separate ly purchased chain lo ck into the security keyhole and connect it to a fi xed object to prevent a ...

  • LG Electronics LM50 - page 15

    14  Specification •C P U · Banias 1.3 ~ 1.7 GHz / D othan 1.7 GHz ·F C P G A • Main Chipset & Gra p hic · Intel ODEM + ICH4 · Intel Montar a GME (G raphic Controller Integrated) · ATi M9+ w/32MB VRAM · ATi M10 w/64MB VRAM • Memory · 2SODIMM – Up to 2GB · DD R200/266/333 Capable • HDD · 2.5” 9.5mm 40/60/80GB • Communica ...

  • LG Electronics LM50 - page 16

    15  Model Configuration Ch3. System info rmati on ...

  • LG Electronics LM50 - page 17

    16  Sy stem Block Diagram Ch3. System info rmati on ...

  • LG Electronics LM50 - page 18

    17  Fn key combinations The following t abl e sh o ws t he fun ctio n of each com bin ati on of Fn with a functio n ke y. Function o f Fn keys has nothing to do with Operating System. User-defined Hot key . (Se tt ing is available a t O SD) Enable / Disable Wi reless LAN. Disable W ir eless LAN by pressing once. Enable Wi reless LAN by press ing ...

  • LG Electronics LM50 - page 19

    18  Status indicators · The system stat us in di cat ors sh ow t h e st at u s of th e com put er. d. Driv e in use Driv e in use indicator lights up when data is being written to or read fr om the hard-disk or optical disk drive. f. Caps Lock Caps lock indicator ligh ts up when the Caps lock key is pressed. Wh en this indicato r lights up, you ...

  • LG Electronics LM50 - page 20

    19  BIOS Flash You can update BIOS using a floppy disk dr ive . Because this system is not equ ipped with any floppy disk dr ive, you have to use an e xternal U SB drive for a BIOS update. In orde r to boot up with an USB drive, please set Removable D evice as the fi rst boot up drive in the boot menu of BIOS setup. · How to update flash ROM in ...

  • LG Electronics LM50 - page 21

    20 1. Quit all runn ing programs. 2. Start WI NPHLASH.EXE. 3. Select the procedure you want : a. Backup BIOS and Fl ash BIOS with new settings b. Backup BI OS Only 4. Specify the loca tions for backup and new BIOS files in BIOS Setting Locations. a. Enter the name of the backup fi le for exis ti ng BIO S or cl ick Br owse to loca te the fi le. b. E ...

  • LG Electronics LM50 - page 22

    21 8. After the comple tion, ‘Syste m BIOS was successfully updated’ appears on the sc reen, then the comput er rest arts. 9. After the res tart, make sure the system BIOS is updated. 10. If your compu ter does not resta rt automatica lly, turn o ff your computer and then tu rn it back on by pressing power button. Ch3. System info rmati on ...

  • LG Electronics LM50 - page 23

    22  BIOS Setup BIOS (Basic Input and Output Sy stem) S etup saves the sy st em co nfigurat io n in CMOS R AM , and check the configu rations du ring sta rtup. Use the BIOS Setup Utility to change and save the system enviro nment, hardware configu rations, power sav ing mode, etc. · Open the BIOS Setu p Utility in the following situations : 1. t ...

  • LG Electronics LM50 - page 24

    23  Default screen · BIOS Setup Utility menu bar shows the following menus Main, A dv a nced, Security , Boot, Exit · Main menu enables you to set the system time and date, har d disk d rive setup, memory con figuration, and floppy disk dri ve s pecification . · Advanced menu enables you to configu re the operating en vironment for per iphera ...

  • LG Electronics LM50 - page 25

    24  Using the keys The keys used in the B IOS S etup Utility and their functions are described at the bottom. · , + : General Help Display the descriptions of the keys used in the set up utility. · , : S elect It em Navigate and select items in the setup ut ility. The selected item becomes highlight ed. · , : Select Menu Move to another menu. ...

  • LG Electronics LM50 - page 26

    25  Main Menu · System Time Set the syste m tim e. Us e Tab key to move to hour, minute, and second. Use + , - , or Spacebar to change the values. · System Date Set the system date. · Processor Type / Speed Indicate CPU type and clock speed installed on the system . · BIOS Ver si on / KBC Version / UUID Number Display BIOS / KBC ver sion inf ...

  • LG Electronics LM50 - page 27

    26  Advanced Menu · Legac y USB Support Enable support for the Legacy USB. ( En abled / Disabled ) · Internal Keypad Enable support for the in ternal keypad. ( Enabled / Disab led ) Ch3. System info rmati on · TouchPad Support Enable support for T ouchPad. ( Enabled / Disabled ) ...

  • LG Electronics LM50 - page 28

    27 · Parallel Port Configure the parallel por t using options. ( Enabled / Disabl ed ) Set the mode for the para llel port using options . ( Output only , Bi-dire ctional , EPP , and ECP ) Set the base I/O address for the parallel port. ( 378 / 278 / 3BC ) Set the interrupt for the parallel port. ( IRQ5 / IRQ7 ) · Boot-time Diagnosti c S c r een ...

  • LG Electronics LM50 - page 29

    28  Security Menu · Setting a pass word If you want to protec t the system se tup fro m an unauthorized user, fo llow the instruct ions below to set a password. You can set a password in th e BIOS S e tup Utility program. · Set Supe rvisor Passw ord A password protects your computer from unauthor ized users. Th e fa ctory default setup does no ...

  • LG Electronics LM50 - page 30

    29 Note A supervis or password enables you to change settings in the BIOS Setup Utility and to perform Power on Boot . Users o ther than the ad ministrator should only have use r passwords. c. If the following message appears , enter a new super visor password and then Enter . A password mus t be consisted o f characte r A~Z and nu mbers 0~9, and h ...

  • LG Electronics LM50 - page 31

    30 · Set User Passw ord A user passw ord provid es a lo w er level of se curity co mpared to a superv isor password. A superviso r password mus t be set in o rder for you to set a user password. a. Start th e BIOS Setup Utility and use arrow keys to select Secur ity menu. b. Use arrow keys t o selected Set User Passw ord and p ress Ent er . Note A ...

  • LG Electronics LM50 - page 32

    31 d. If the following message appears, press Enter . e. Press F1 0 to save the new settings . f. If the following message appears, select Yes and press Enter to restart the co mputer. Ch3. System info rmati on ...

  • LG Electronics LM50 - page 33

    32 · Pass word on boot Enables password entry on boot a. Start th e BIOS Setup Utility and use arrow keys to select Secur ity menu. b. If the following screen appears, select Set Supervisor Passwo rd or Set User Passw ord by using arrow keys, and input new password. Ch3. System info rmati on ...

  • LG Electronics LM50 - page 34

    33 c. Sel ec t Password on boot menu, then change value ( Enabled ) by using + , - keys. Note If you set a Su pervisor Passw or d or User Passw ord , you can use Password on boot . If you set Disabled on Password on boot , You don’t have to enter a password. Ch3. System info rmati on ...

  • LG Electronics LM50 - page 35

    34 · Set HDD P ass word Set HDD P ass word t o co n t rol a cc e ss t o th e Hard- di sk. Press Enter to input, change or disable hard-d isk password. a. Start th e BIOS Setup Utility and use arrow keys to select Secur ity menu. b. If the following screen appears, select Set HDD Password by using arrow keys, and pres s Enter . Note When loosing y ...

  • LG Electronics LM50 - page 36

    35 c. If the following message appears , enter a new super visor password and then press Enter . A password must be consisted of numbe rs 0~9, and have the maximu m length of 8. d. If the following message appears, press Enter . e. Press F1 0 to save the new settings . f. If the following message appears, select Yes and press Enter to restart the c ...

  • LG Electronics LM50 - page 37

    36 · Changing or remov ing a pa ssword You must know the password in order to change or remove it. a. Start th e BIOS Setup Utility , enter your passwor d, and then press Enter . b. To ch ange the password, follow the instructions on Se t Superviso r Passw or d or Set User Passwo rd . c. To remove the password, follow the instruc tions below. Use ...

  • LG Electronics LM50 - page 38

    37  Boot Menu · Boot menu enables you to set the boot order fo r the C D-RO M driv e, Remo vable devic es, Hard driv e, and Network boot. Boot menu displays the boot orde r of your system with h igher prio rity given to a device higher on the list. The default boot o rder is C D-RO M driv e, Remo vable devices , Hard dr ive, and Network boot. C ...

  • LG Electronics LM50 - page 39

    38 · Exit System Set up and save your changes to CMOS. · Exit Saving Chan ges Select Exit Saving Chan ge s to save new setup information in CMOS RAM. CMOS RAM stores the information using the backup battery; t here fore, the information will not be lost when t he co mputer is turned off . · Exit Discardin g Chan ges Select Ex it Discard ing Ch a ...

  • LG Electronics LM50 - page 40

    39 · Discard Cha nges Select Discard Chan ges to discard new setu p information. S etup Confirmati on asks you to confirm your selec tion. If you want to d iscard any new setup info rmation, se lect Yes . · Save Changes Select Save Chan ges to sa ve any new setup info rmation without ex iting the BIOS Setup Uti lity . Select Yes to save the new s ...

  • LG Electronics LM50 - page 41

    40 Note If r eplacing a pa rt (FR U) does not solve the problem, pu t the orig inal part back in the computer. Do not rep lace a non-defectiv e FRU . The symptom-to-pa rt index in this sec tion lists sympto ms and error s and their possible causes. The most likely cause is listed first.  Pow er system checkout · To ver ify a symptom, do the fol ...

  • LG Electronics LM50 - page 42

    41 · If the vo ltage is not correct, rep lace the AC adapter. · If the voltage is acceptab le, do the following : 1. Replace the system board. 2. If the problem persis ts, check the AC adapter whether it is cor rect product or not. · Check ing operational charging 1. To check whether the battery charges proper ly du ring operation, use a d ischa ...

  • LG Electronics LM50 - page 43

    42 · The Character istics of the battery pack 1. Self-discharge The battery gradually loses its power over time without e ver being used. 2. Periodic full disch arg e / charge Frequent recharge o f the battery pack can reduce the c apac ity of the batte ry pack. When this happens, you can perform the full discharge / charge to improv e the capacit ...

  • LG Electronics LM50 - page 44

    43 · To check the battery pack , do the fo llowing : 1. Power off the comp ut er. 2. Remove the battery pack and m easure t he volt age between batt ery terminals 1(-) and 5(+). See t he followin g figure : +0V ~ +1 2 .6V (6 cell / 9-cell) 5 Ground(-) 1 Voltage (V dc) Terminal Ground Blue +2.5 ~ + 3 .2 White Voltage (V dc) Wir e Note Charging will ...

  • LG Electronics LM50 - page 45

    44  Numeric error codes Replace the backup battery and run B IOS S etup Utility to reset the time and date. 0250 System battery e rror - Syste m battery is dead 1. DIMM 2. System bo ard 0232 Extended RAM erro r - Exte nded RAM Failed at address line System board 0231 Shadow RAM error - Shadow RAM failed at offset 1.DIMM 2.Sy stem b o a rd 0230 S ...

  • LG Electronics LM50 - page 46

    45 FRU or action, in seq uence Sy mptom / Error 1. DIMM 2. Syst em board 02F6 Software NMI failed 1. DIMM 2. System bo ard 02F5 DMA test failed 1. Load ‘Setup Default’ in BIOS Setup Utility. 2. Replace the backup battery. 3. Syst em board. 02F4 EISA CMOS not writab le 1. Load ‘Setup Default’ in BIOS Setup Utility. 2. Syst em board. 02D0 Sys ...

  • LG Electronics LM50 - page 47

    46 FRU or action, in seq uence Sy mptom / Error 1. Load Setup Defaults in BIOS Setup Utility. 2. System bo ard. 061A Parallel port configuratio n e rror 1. Load Setup Defaults in BIOS Setup Utility. 2. System bo ard. 0619 Parallel port configuration changed 1. Load Setup Defaults in BIOS Setup Utility. 2. System bo ard. 0618 Floppy configuration e ...

  • LG Electronics LM50 - page 48

    47 System board. Thermal sensin g error. Fan. FAN error. 1. Restore t he system co nfiguration to what it was before the co mputer enter ed hibernation mode. 2. If memory size has been changed, re-create the hibernation file. Hibernation err or. 1. Check that the opera ting system has no failure and is installed correctly. 2. Enter BIOS Setup Utili ...

  • LG Electronics LM50 - page 49

    48  LCD-related sy mptoms Note Before re moving or d isassembling LCD , power off th e computer, unpl ug all po wer cords from electrical outlets, remove the battery pack also. LCD assembly. System board. Power-on indi cator on, and a b lank LCD during POST. LCD assembly. Horizon t al or vertical line s displa y ed on LCD 1. Reset all LC D conne ...

  • LG Electronics LM50 - page 50

    49  Indeterminate problems · You are here because the d iagnostic tes ts did not identi fy which adapter or device failed, wrong devic es are installed, a short ci rcuit is suspected, or the system is inopera tive. Follow these procedures to isolate t he failing FRU (do not isolate FRUs that have no defects). · Verify that all at tached device ...

  • LG Electronics LM50 - page 51

    50 Chapter 5. Removing and replacing a part (FRU) Note As for the sc rew, every Torque 2 0.2Kgfcm( 0.196Nm) Danger Before removing an y FRU, po w er off the co mput er, u npl u g all po wer cords from electrical outlets, re move the batte ry pack, and then d isconnect any interconnecting cables. Caution Before the computer is powered on after FRU r ...

  • LG Electronics LM50 - page 52

    51  1010 Battery Pack 1. Push the batte ry latch in the direc tion shown below, then s lide the battery pac k out of the slot. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 53

    52  1020 Hard Disk Drive 1. Remove a screw as indicated in the pictur e, then pull the HDD assembly out in the d irection shown below. Remov e the following parts in order befor e repla cing this part. a. Battery Pack (1010) 1 M3.0 X L5.0 1SZZBA4011E 1 Qty Specific ation FRU No. No. Ch5. Removing and replacing a part 1 ...

  • LG Electronics LM50 - page 54

    53  1030 Retainer 1. Remove 2 screws. 1 1 2 M2.0 X L8.0 1SZZBA4083A 1 Qty Specific ation FRU No. No. Remov e the following parts in order befor e repla cing this part. a. Battery Pack (1010) Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 55

    54 2. To remove three hooks, insert a (-) t ype screwdrive r into a hook located at the lo wer end of keyboard, and pull it up. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 56

    55 3. Disconnect the keyboard connector. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 57

    56  1040 Retainer Remov e the following parts in order befor e repla cing this part. a. Battery Pack (1010) b. Keyboard(1030) 1. Pull up the ret ainer, and rem ove t h e connector using a (-) type screwdriver. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 58

    57  1050 Fan Assembly Remov e the following parts in order befor e repla cing this part. a. Battery Pack( 1010) b. Keyboard(1030) c. Retainer (1040) 1. After removing a screw and t he conn ect or, pull up and remove the fan assembly usin g a (-) type screw driver. Ch5. Removing and replacing a part 3 M2.0 X L8.8 1SZZBZ4020A 1 Qty Specific ation ...

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    58 Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 60

    59  1060-1 Optical Disk Drive (15” Model) 1. Remove a screw, insert a screwdr ive r into the hole loca ted at the rear of O DD and push it out. Remov e the following parts in order befor e repla cing this part. a. Battery Pack( 1010) b. Keyboard(1030) c. Retainer (1040) Ch5. Removing and replacing a part 1 1 M2.0 X L5.0 1SZZBZ4014A 1 Qty Speci ...

  • LG Electronics LM50 - page 61

    60  1060-2 Optical Disk Drive (14.1” Model) 1. Remove a screw, insert a screwdri ver into the back side of O DD and push it out. Remov e the following parts in order befor e repla cing this part. a. Battery Pack( 1010) b. Keyboard(1030) c. Retainer (1040) Ch5. Removing and replacing a part 1 1 M2.0 X L5.0 1SZZBZ4014A 1 Qty Specific ation FRU N ...

  • LG Electronics LM50 - page 62

    61  1070 Wireless LAN Card 1. Remo ve two wire less LAN card connector, open card knob to take out the card . Remov e the following parts in order befor e repla cing this part. a. Battery Pack( 1010) b. Keyboard(1030) c. Retainer (1040) Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 63

    62  1080 MDC Modem Card 1. Remove two sc rews and insert a screwdri ver below the modem. Pu ll it up to disassemble. Remov e the following parts in order befor e repla cing this part. a. Battery Pack( 1010) b. Keyboard(1030) c. Retainer (1040) Ch5. Removing and replacing a part 1 1 2 M2.0 X L3.5 1SZZBA4017B 1 Qty Specific ation FRU No. No. ...

  • LG Electronics LM50 - page 64

    63  1090 Display Module 1. Remove two screws. Remov e the following parts in order befor e repla cing this part. a. Battery Pack(1010) b. Keyboard(1030) c. Retainer (1040) d. W ir eless LAN Card(1070) Ch5. Removing and replacing a part 1 2 M2.5 X L8.0 1SZZBA4039B 1 Qty Specific ation FRU No. No. 1 ...

  • LG Electronics LM50 - page 65

    64 Ch5. Removing and replacing a part 1 2 M2.0 X L5.0 1SZZBZ4014A 1 Qty Specific ation FRU No. No. 1 2. Remove two hinge cov er screws. ...

  • LG Electronics LM50 - page 66

    65 3. Using a (-) ty pe screwdriver fr om the back of LCD, pull up the hinge cover with your finger. Then more you move the LCD to the back, t he easier the hinge cover will pull out. Re move another hinge cover located on the other side. 4. Remove two hinge sc rews. Ch5. Removing and replacing a part 2 M2.5 X L8.0 1SZZBA4039B 1 Qty Specific ation ...

  • LG Electronics LM50 - page 67

    66 5. Remove the LCD connector loca ted at the upper end of MCD mode m. You will see a tag designed to make work easie r. Pull out the tag. 4. Remove the LCD cabl e . Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 68

    67 7. Hold the LCD with your both hands, and pull it up to remo ve. Ch5. Removing and replacing a part Note Display Module disasse mbly in detail ( 1140) ...

  • LG Electronics LM50 - page 69

    68  1100 Key board Deck 1. Remove 14 sc rews (for 15 ” model) or 11 screws (for 14.1” mode l). The screw type is shown on the set for your refe rence. Remov e the following parts in order befor e repla cing this part. a. Battery Pack(1010) b. Keyboard(1030) c. Retainer (1040) d. Fan Assembly(1050) e. W ire less LAN Card (1070) f. MDC M odem ...

  • LG Electronics LM50 - page 70

    69 Ch5. Removing and replacing a part 1 M2.0 X L13.0 1SZZBA4067A 2 10 M2.0 X L8.0 1SZZBA4083A 1 Qty Specific ation FRU No. No. 1 1 1 1 1 1 1 1 1 1 1 1 1 2 Screw Type 1 1 1 1 1 1 1 1 1 1 2 14.1” Screw Type ...

  • LG Electronics LM50 - page 71

    70 2. Open the I/O port cover and remove two screws. Ch5. Removing and replacing a part 2 M2.0 X L3.5 1SZZBA4017B 1 Qty Specific ation FRU No. No. 1 1 ...

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    71 3. Remove 3 screws. Ch5. Removing and replacing a part 3 M2.0 X L2.0 1SZZBZ4018B 1 Qty Specific ation FRU No. No. 1 1 1 ...

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    72 4. Remo ve the cable, hold the keyboard deck with your both hands and pull it ou t. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 74

    73 5. Remove the speaker cable located at the front of key deck that is pulled up. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 75

    74  1110 Main Board 1. Remove two screws a n d disa ssemble the ODD Plate Assembly. Remov e the following parts in order befor e repla cing this part. a. Battery Pack(1010) b. Keyboard(1030) c. Retainer (1040) d. Fan Assembly(1050) e. W ire less LAN Card (1070) f. MDC M odem Card(1080) g. D isplay Module(1090) h. Keyboard Deck(1100) Ch5. Removin ...

  • LG Electronics LM50 - page 76

    75 2. Remove the PC MCIA board. Ch5. Removing and replacing a part 3. Remove the RTC ba ttery connector fr om Main Board. ...

  • LG Electronics LM50 - page 77

    76 4. Remove the S-Video connector. Ch5. Removing and replacing a part 5. Remove the LAN S/B connector . ...

  • LG Electronics LM50 - page 78

    77 6. Remove the power cable. Ch5. Removing and replacing a part 7. Remove 4M/B screws. 1 M2.0 X L3.5 1SZZBA4017B 2 3 M2.0 X L5.0 1SZZBA4014A 1 Qty Specific ation FRU No. No. 2 1 1 1 ...

  • LG Electronics LM50 - page 79

    78 8. Hold M/B with your both hand and pull it up to remove. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 80

    79  1120 Battery Frame Assembly 1. Remove a screw. Remov e the following parts in order befor e repla cing this part. a. Battery Pack(1010) b. Keyboard(1030) c. Retainer (1040) d. Fan Assembly(1050) e. W ire less LAN Card (1070) f. MDC M odem Card(1080) g. D isplay Module(1090) h. Keyboard Deck(1100) i. Main Board(1110) Ch5. Removing and replaci ...

  • LG Electronics LM50 - page 81

    80 2. Pull up the batt ery frame finger plate, and remove the battery frame assembly. The LAN S/B will be removed as well when the battery fram e assembly is disassemb led. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 82

    81  1130 S-Video Sub- Board 1. Remove the S-Video sub-board. Remov e the following parts in order befor e repla cing this part. a. Battery Pack(1010) b. Keyboard(1030) c. Retainer (1040) d. Fan Assembly(1050) e. W ire less LAN Card (1070) f. MDC M odem Card(1080) g. D isplay Module(1090) h. Keyboard Deck(1100) i. Main Board(1110) Ch5. Removing a ...

  • LG Electronics LM50 - page 83

    82  1140 Display Module 1. Using a knife, remove the logo and rubbers that are cove ring the screws. Th en remove all 7 sc rews. Remov e the following parts in order befor e repla cing this part. a. Battery Pack(1010) b. Keyboard(1030) c. Retainer (1040) d. Fan Assembly(1050) e. W irele ss LAN Card (1070) Ch5. Removing and replacing a part 1 1 1 ...

  • LG Electronics LM50 - page 84

    83 2. Disasse mble the LCD f ront. The f ront hook located on the middle of LCD upper and lower end. Be careful of the dire ction when removing because it is connected fr om ins ide out. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 85

    84 3. Remove cab le connector. Remove the cable that is arranged around LCD fr om LCD frame. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 86

    85 4. Remove 9 screws (for 15” m odel) or 8 screws ( for 14.1”) . Ch5. Removing and replacing a part 1 1 1 1 2 3 2 2 2 (15”) 1 M2.0 X L3.0 1SZZBA4041A 3 (15”) 4 M2.5 XL4.0 1SZ ZBA4044B 2 4 M2.0 X L2.5 1SZZBZ3009B 1 Qty Specific ation FRU No. No. ...

  • LG Electronics LM50 - page 87

    86 5. Press the hook on the both side of LCD with a (-) type screw dri ver and remove from the LCD real panel. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 88

    87 6. Remove L CD from the LCD rear panel. Ch5. Removing and replacing a part ...

  • LG Electronics LM50 - page 89

    88 REAR CASE, 14. 1" FOR EXPORT 3110BD0008B MKL28 INSULATOR, LED 14.1" 3858BZ3020A MKL27 CABLE ASSY, LCD 14 .1 " 6851B76024A MKL26 HINGE ASSY, RIGHT 14.1" 4775BZ1005A MKL25 HINGE ASSY, LEFT 14.1" 4775BZ1004A MKL24 DECORATION COVER , 1 4 . 1" FOR EXPORT 3550BM1149B MKL23 LENS, WIRELESS REAR 14.1" 3680BM3036A MKL22 ...

  • LG Electronics LM50 - page 90

    89 For refresh model MCKINLEY LG-IBM SUNREX US-ENG LM REFRESH 14" 3823B71004A MKC08 MCKIN LEY LG- IBM SUN REX -K021102A US- ENG 14.1" 84 KEY 3823B70004A MKC08 FAN ASSY, W / SHE ET 5901B09265A MKC07 LI-ION BATTERY, SIM PLO 6600MAH 3S-3P 6911BZ0046B MKC06 LI-ION BATTERY, SIM PLO 4400MAH 3S-2P 6911BZ0045B MKC06 MDC MO DEM, AMBIT T60M283.13 5 ...

  • LG Electronics LM50 - page 91

    90 For refresh model MCKINLEY N SUNREX HUNGARY REFRE SH LM 14 " 3823B71004Q MKC08 For refresh model MCKINLEY N SUNREX TA I WA N LM REFRES H 14" 3823B71004P MKC08 MCKINLEY LG-IBM SUNREX TAI W A N 1 4. 1 " 8 4K E Y 3823B70004P MKC08 For refresh model MCKINLEY N SUNREX TH AILAND LM R EFRESH 1 4" 3823B71004N MKC08 MCKINLEY N SUNREX ...

  • LG Electronics LM50 - page 92

    91 MCKINLEY LG-IBM SUNREX THAILAND 1 5 " LM 8 4 KE Y 3823B70008N MKC08 For refresh model MCKINLEY LG-IBM OKI FRENCH REFRESH LM 1 5" 3823B71008M MKC08 MCKINLEY N OKI FRENCH 15" 87KEY 3823B70008M MKC08 For refresh model MCKINLEY LG-IBM OKI POLISH LM REFRESH 15 " 3823B71008L MKC08 MCKIN LEY LG- IBM OKI POLI SH 15" 87KEY 3823B7 ...

  • LG Electronics LM50 - page 93

    92 Australia 213356-001 LINE TEK S AA 1830MM 3P IN CONN . BLACK 6410BK21004 MKC13 Australia 213356-001(SP502A +IS34) I -SHENG S AA 1850MM 3P CONN. BLACK 6410BK20704 MKC13 Australia PL8B1S3J10A-060 LO NGW E LL SAA 1830MM 3PIN CONN BLAC K 6410BK21005 MKC13 Germany,Iran, Portugal,Spain PF8B1CIJ 10A-060 LONGWELL CEU 1830MM 3P CONN. BLACK 6410BD21003 MK ...

  • LG Electronics LM50 - page 94

    93 MCKINLEY LGE 4 LAYERS REV 0. 4 PCMCIA W SD 15.0 " SUB B/D ASS Y 6871BG824AA MKS01 HDD, HGST IC25N0 8 0A TMR04-0 8 0 GB EIDE 6744C00107A MKH04 HDD, TOSHIBA MK8025GAS 80GB EIDE 6744C00090A MKH04 HDD, FUJITSU MHT2080AT 80GB EIDE 6744C00087A MKH04 HDD, HGST IC25N0 6 0A TMR04-0 6 0 GB EIDE 6744C00106A MKH04 HDD, TOSHIBA MK6021GAS 60GB EIDE 6744C ...

  • LG Electronics LM50 - page 95

    94 RETAINER ASSY 14.1 " WI TH SUB B/D 3551BZ3004B MKM07 RETAINER ASSY 15.0 " WI TH SUB B/D 3551B03007B MKM06 COVER, ASSY DDR MEMORY 3581B Z0030A MKM05 FRAME, HINGE & BATTERY 15.0 " 3210BD1005A MKM04 FRAME, HINGE & BATTERY 14.1 " 3210BD2014A MKM03 For refresh model MCKINLEY N N MCKINLEY B OTT OM FOR MC REFRES H 14.1 " ...

  • LG Electronics LM50 - page 96

    95 GASKET ON MIN I-PCI A NTENNA CON NECTOR 4986BZ4117A MKM38 SCREW, D2.0 L3.0 MM TORQUE 2.0 ± 0.2 1SZZBA4017A MKM39 SCRE W , D5. 5 M3. 0 L 6 . 0 MM TO RQUE 2. 0 ± 0. 2 1SZZBA4085A MKM34 SCRE W , D3. 8 M2. 0 L 8 . 0 MM TO RQUE 2. 0 ± 0. 2 1SZZBA4083A MKM33 SCRE W , D4. 3 M2. 0 L 5 . 0 MM TO RQUE 2. 0 ± 0. 2 1SZZBZ4014A MKM32 SCRE W , D3. 8 M2. 0 ...

  • LG Electronics LM50 - page 97

    MKL28 MKL15 MKL23 MKL31 MKL22 MKL29 MKL27 96 Case : LCD 14.1 " Case : LCD 14.1 " Location LG P/N SPECIFICATION REMARKS MKL15 3858BZ3019A INSULATOR, INVERTER 14.1"/15.0" MKL22 3680BM3036A LENS, WIRELESS REAR 14.1" MKL23 3550BM1149B DECORATION COVER, 14.1" FOR EXPORT MKL27 3858BZ3020A INSULATOR, LED 14.1" MKL28 3110 ...

  • LG Electronics LM50 - page 98

    97 Case : LCD 15.0 " MKL15 MKL14 MKL17 MKL12 MKM23 MKL31 Case : LCD 15.0 " Location LG P/N SPECIFICATION REMARKS MKL12 6871BZT17AA CABLE FPC, WIRELESS INDICATOR 15.1" MKL14 3110BD0009B REAR CASE, 15.0" FOR EXPORT MKL14 3110BD0009D MCKINLEY MG DISPLAY REAR 15.0" FOR MC REFRESH For refresh model MKL15 3858BZ3019A INSULATOR, I ...

  • LG Electronics LM50 - page 99

    98 MKM22 MKM22 MKL16 MKM23 MKM23 MKL13 MKL18 MKL06 MKL05 MKL04 MKL20(14.1") MKL02(15.0") MKL09(15.0") MKL24(14.1") MKL26(14.1") MKL1 1(15.0") MKL10(15.0") MKL25(14.1") MKM23 MKM23 ...

  • LG Electronics LM50 - page 100

    99 Location LG P/N SPECIFICATION REMARKS MKL02 6304FLP081A TFT LCD, LG PHILIPS LP150E06-A2 15.0 INCH SXGA+ MKL02 6304FLP080A TFT LCD, LG PHILIPS LP150X08-A3M1 15.0 INCH XGA MKL02 6304FAU002B TFT LCD, AU B150XG01 15.0 INCH XGA MKL02 6304FBH005A TFT LCD, BOE-HYDIS HT15X34-100 15.0 INCH XGA MKL04 4940BM4146A KNOB, LATCH MKL05 4026BM3013A LATCH, DISPLA ...

  • LG Electronics LM50 - page 101

    100 MKL21(14.1") MKL03(15.0") MKL08 MKL08 MKM21 MKM22 MKM21 MKM22 MKM22 MKL07 MKL07 MKL07 MKL07 MKL30 Location LG P/N SPECIFICATION REMARKS MKL03 3111BZ7101A CASE ASSY, FRONT 15.0 MKL07 4850BM4010A CUSHION, RUBBER UPPER MKL08 4850BM4011A CUSHION, RUBBER LOWER MKL21 3111BZ7100A CASE ASSY, FRONT 14.1" MKL30 3850BB3035D MODEL NAME LABEL ...

  • LG Electronics LM50 - page 102

    101 MKM02(14.1") MKB01 MKS02(14.1") MKS03(15.0") MKS04(14.1") MKS01(15.0") MKM01(15.0") MKM03(14.1") MKS06 MKM19 MKM19 MKM19 MKM19 Cardbus MKC05 MKC04 MKM32 MKC12 MKM04(15.0") MKC04 MKM38 Mini PCI MDC Modem ...

  • LG Electronics LM50 - page 103

    102 Location LG P/N SPECIFICATION REMARKS MKB01 6871BF100A1 MAINBOARD ASSY, BH M9+ P.P LGE 8 LAYERS REV 0.5 MKB01 6871BF200A1 MAINBOARD ASSY, BH M10 P.P LGE 8 LAYERS REV 0.5 MKB01 6871BF300A1 MCKINLEY US007506 REFRESH MODEL . LGE 8 LAYERS REV 0.7 M11 For refresh model MAINSTEAM MAIN ASSY MKC04 6871BZT13A4 WIRELESS LAN, INTEL WM3B2100WW MINI-PCI TYP ...

  • LG Electronics LM50 - page 104

    103 MKH04 MKH02 MKH03 MKM27 MKM27 MKM19 MKS05 MKC02 15 ODD I/F MKM12 14 M9 : 3301BZ9092A M10 : 3301BZ9092C 15 M9 : 3301BZ9092D M10 : 3301BZ9092B MKC07 MKM38 MKM29 MKC10 MKM16 MKM17 MKM18 MKM23(14 ) MKM32(15 ) ...

  • LG Electronics LM50 - page 105

    104 Location LG P/N SPECIFICATION REMARKS MKC02 2029BG0100A DVD/CDRW COMBO, TOSHIBA SD-R9012 8X 16X 8X 24X BUILT IN 9.5 MM MKC02 6777BG0001A DVD, TEAC DV-28E-BC-43 8X 24X BUILT IN 9.5 MM MKC07 5901B09265A FAN ASSY, W/ SHEET MKC10 0IMCRIN103B PROCESSOR, INTEL RH80535GC0131M 478P UFCPGA PENTIUM-M 1300MHZ/600MHZ B1-STEPPING(SL6N4) MKC10 0IMCRIN104B PR ...

  • LG Electronics LM50 - page 106

    105 Location LG P/N SPECIFICATION REMARKS MKM12 3301BZ9092D PLATE, CHIPSET COVER ASSY 15.0" M9 MKM12 3301BZ9092A PLATE, CHIPSET COVER ASSY 14.1" M9 MKM12 3301BZ9092B PLATE, CHIPSET COVER ASSY 15.0" M10 MKM12 301BZ9092C PLATE, CHIPSET COVER ASSY 14.1" M10 MKM16 5022BZ4025A THERMAL PAD 19X19 MM ON FAN MKM17 5022BP4010A THERMAL PAD ...

  • LG Electronics LM50 - page 107

    MKD01 MKM33 MKM31 ODD MKM32 MKD04 MKM39 MKD03 106 ...

  • LG Electronics LM50 - page 108

    107 Location LG P/N SPECIFICATION REMARKS MKD01 3111BZ8801A KBD DECK ASSY 15.0" MKD01 3111BZ8801B N N KBD DECK ASSY 15" MCKINLEY KBD DECK W/ UV COATED KNOB For refresh model MKD01 3111BZ8800A KBD DECK ASSY 14.1" MKD01 3111BZ8801D MCKINLEY N N MCKINLEY KBD DECK TOTAL ASSY 15.0" FOR MC REFRESH For refresh model MKD01 3111BZ8800C M ...

  • LG Electronics LM50 - page 109

    108 MKC08 MKM08 MKM32 MKM30 MKM09 MKM10 MKM1 1 MKM32 MKM06(15.0") MKM07(14.1") MKM30 ...

  • LG Electronics LM50 - page 110

    109 Location LG P/N SPECIFICATION REMARKS MKC08 3823B70004A MCKINLEY LG-IBM SUNREX-K021102A US-ENG 14.1" 84 KEY MKC08 3823B71004A MCKINLEY LG-IBM SUNREX US-ENG LM REFRESH 14" For refresh model MKC08 3823B70004C MCKINLEY LG-IBM SUNREX-K021102A RUSSIAN 14.1" 84 KEY MKC08 3823B71004C MCKINLEY LG-IBM SUNREX RUSSIAN LM REFRESH 14" Fo ...

  • LG Electronics LM50 - page 111

    110 Location LG P/N SPECIFICATION REMARKS MKC08 3823B71008F MCKINLEY LG-IBM OKI FARSI LM REFRESH 15" For refresh model MKC08 3823B70008H MCKINLEY LG-IBM OKI US SOUTH AFRICA 15" 86KEY MKC08 3823B71008H MCKINLEY LG-IBM OKI US SOUTH AFRICA LM REFRESH 15" For refresh model MKC08 3823B70008G MCKINLEY LG-IBM OKI UKRAINAIN 15" 86 KEY M ...

  • LG Electronics LM50 - page 112

    111 MKC06 MKM05 MKM30 MKM28 MKM33 MKM33 MKM33 MKM34 MKM33 MKM19 MKM30 MKC01 MKC1 1 MKC13 ...

  • LG Electronics LM50 - page 113

    112 Location LG P/N SPECIFICATION REMARKS MKC01 0IMMRSS090A MEMORY, SAMSUNG M470L3224FT0-CB3 SODIMM 256MB DDR 333MHZ MKC01 0IMMRHY044A MEMORY, HYNIX HYMD232M646C6-J SODIMM 256MB DDR 333MHZ MKC01 0IMMRIH032A MEMORY, INFINEON HYS64D32020GDL-6-B SODIMM 256MB DDR 333MHZ MKC01 0IMMRSS091A MEMORY, SAMSUNG M470L6423EN0-CB3 SODIMM 512MB DDR 333MHZ MKC01 0I ...

  • LG Electronics LM50 - page 114

    113 Location LG P/N SPECIFICATION REMARKS MKM05 3581BZ0030A COVER, ASSY DDR MEMORY MKM19 1SZZBA4017B SCREW, D2.0 M2.0 L 3.5 MM TORQUE 2.0 0.2 MKM28 1SZZBA4067A SCREW, D4.0 M2.0 L13.0 MM TORQUE 2.0 0.2 MKM30 1SZZBA4039B SCREW, D4.5 M2.5 L8.0 MM TORQUE 3.0 0.2 MKM33 1SZZBA4083A SCREW, D3.8 M2.0 L8.0 MM TORQUE 2.0 0.2 MKM34 1SZZBA4085A SCREW, D5.5 M3. ...

Manufacturer LG Electronics Category Laptop

Documents that we receive from a manufacturer of a LG Electronics LM50 can be divided into several groups. They are, among others:
- LG Electronics technical drawings
- LM50 manuals
- LG Electronics product data sheets
- information booklets
- or energy labels LG Electronics LM50
All of them are important, but the most important information from the point of view of use of the device are in the user manual LG Electronics LM50.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals LG Electronics LM50, service manual, brief instructions and user manuals LG Electronics LM50. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product LG Electronics LM50.

A complete manual for the device LG Electronics LM50, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use LG Electronics LM50 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of LG Electronics LM50.

A complete LG Electronics manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual LG Electronics LM50 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the LG Electronics LM50, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the LG Electronics LM50, that we can find in the current document
3. Tips how to use the basic functions of the device LG Electronics LM50 - which should help us in our first steps of using LG Electronics LM50
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with LG Electronics LM50
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of LG Electronics LM50 in a specific country, if it was not possible to solve the problem on our own.

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