Manuel d'utilisation / d'entretien du produit L421 du fabricant Lenovo
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Har dwar e Maint enance Manual ThinkP ad L420, L421, and L520.
Note Before using this information and the pr oduct it supports, be sur e to read the gener al information under Appendix A “Notices” on page 165 .
Contents About this manual . . . . . . . . . . . iii Chapter 1. Safety information . . . . . 1 General safety . . . . . . . . . . . . . . . . 1 Electrical safety . . . . . . . . . . . . . . . 2 Safety inspection guide . . . . . . . . . . . . 3 Handling devices that ar e sensitive t o electr ostatic discharge .
1180 Keyboar d bez el . . . . . . . . . . . . 85 1190 L CD unit . . . . . . . . . . . . . . . 87 2010 T op shielding assembly . . . . . . . . . 90 2020 System boar d assembly . . . . . . . . . 93 2030 USB connector boar d and USB cable assembly . . . .
About this manual This manual contains service and r eference information for the following ThinkP ad ® Notebook products. ThinkPad L420 Machine T ype (MT) 7826, 7827, 7829, 7853, 7854, and 7856 Thin.
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Chapter 1. Safety information This chapter presents following safety information that you need t o be familiar with before you service a ThinkPad Notebook.
Electrical safety Observe the following rules when working on electrical equipment. Important: Use only appr oved t ools and test equipment. Some hand t ools have handles covered with a soft material that does not insulat e you when working with live electrical curr ents.
– Use caution; do not become a victim yourself. – Switch off power . – Send another person t o get medical aid. Safety inspection guide The purpose of this inspection guide is t o assist you in identifying potentially unsafe conditions.
2. Make sure that the ESD prot ective devices you use have been certied (ISO 9000) as fully effective. When handling ESD-sensitive parts: • K eep the parts in prot ective packages until they ar e insert ed into the product. • A void contact with other people.
DANGER DANGER DANGER DANGER DANGER Chapter 1 . Safety information 5.
DANGER 6 Hardwar e Maintenance Manual.
PERIGO PERIGO PERIGO Chapter 1 . Safety information 7.
PERIGO PERIGO PERIGO PERIGO PERIGO 8 Hardwar e Maintenance Manual.
DANGER DANGER DANGER DANGER DANGER Chapter 1 . Safety information 9.
DANGER DANGER DANGER VORSICHT VORSICHT 10 Hardwar e Maintenance Manual.
VORSICHT VORSICHT VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 . Safety information 11.
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Chapter 1 . Safety information 13.
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PELIGRO Chapter 1 . Safety information 15.
PELIGRO PELIGRO PELIGRO PELIGRO PELIGRO PELIGRO 16 Hardwar e Maintenance Manual.
PELIGRO Chapter 1 . Safety information 17.
Laser compliance statement (multilingual tr anslations) The laser compliance stat ements in this section are pr ovided in the following languages: • English • Ar abic • Br azilian P ortuguese .
Chapter 1 . Safety information 19.
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Chapter 1 . Safety information 21.
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Chapter 1 . Safety information 23.
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Chapter 2. Important service information This chapter pr esents following important service information that applies t o all machine types supported by this manual: • “Str ategy for r eplacing FRU.
• If an adapter or a device consists of mor e than one FRU , any of the FRUs may be the cause of the err or . Before replacing the adapter or device, r emove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the sympt oms.
• eSupport will show both the CT O and CMV machine type models (Example: 1829-C T O and 1829-W15 will be found on the eSupport site.) • The HMM will have the 4-digit MT and 3-digit C TO model only (Example: 1829-C TO). Again, CMVs are custom models and are not found in the HMM.
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Chapter 3. Gener al checkout This chapter pr esents following information: • “What to do rst” on page 29 • “Checkout guide” on page 30 – “Diagnostics using PC-Doctor for DOS” on p.
• Scr atched (cosmetic) parts • Dist ortion, deformation, or discolor ation of the cosmetic parts • Plastic parts, latches, pins, or connectors that have been cr acked or broken by e xcessive fo.
Note: When you initializ e the comput er congur ation, some devices are disabled, such as the serial port. If you test one of these devices, you will need t o enable it by using Congur ation utility for DOS. The utility is available on the following Web site: http://www.
Diagnostics Interactive T ests • Run Normal T est • Run Quick T est • CPU/Coprocessor • Systemboar d • Video Adapter • Serial P orts • Fixed Disks • Diskette Drives • Other Devices .
Lenovo ThinkV antage T oolbo x Lenovo ThinkV antage ® T oolbo x is a diagnostic progr am that works thr ough the Windows ® oper ating system. It enables you t o view sympt oms of computer pr oblems .
T able 1. FRU tests (continued) FRU Applicable t est Optical drive 1. Diagnostics ➙ Other Devices ➙ Optical Drive 2. Int eractive T ests ➙ Optical Drive T est Memory 1. If two DIMMs ar e installed, r emove one of them and run Diagnostics ➙ Advanced Memory T ests .
Pin V oltage (V dc) 1 +20 2 0 3 Ground 1 2 3 (20V) Note: Output voltage of pin no.2 of the ac power adapter may differ ent from the one you are servicing. 3. If the voltage is not correct, r eplace the ac power adapt er . 4. If the voltage is acceptable, do the following: • Replace the system boar d.
T erminal V oltage (V dc) 1 + 0 to + 12.6 7 Ground (-) 1(+) 2(+) 3 4 5 6(-) 7(-) 3. If the voltage is less than +11.0 V dc, the battery pack has been discharged. Note: Recharging will take at least 3 hours, even if the indicator does not turn on. If the voltage is still less than +11.
Chapter 4. Related service information This chapter pr esents following information: • “Restoring the fact ory contents by using Recovery Disc Set” on page 37 • “P asswords” on page 38 •.
3. Pr ess F10 t o save the Setup Utility conguration changes. F ollow the instructions on the screen to begin the recovery process. 4. Select your language and click Next . 5. Read the license. If you agree with the terms and conditions, select I accept these terms and conditions and then click Ne xt .
Attention: If the user HDP has been forgott en, check whether a master HDP has been set. If it has, it can be used for access to the har d disk drive. If no mast er HDP is available, neither L enovo n.
T o r emove a user HDP that has been forgotten, when the SVP and the master HDP are known, do the following: 1. T urn on the comput er . 2. When the ThinkP ad logo comes up, immediately press F1 to ent er BIOS Setup Utility .
Note: E ven if you do not set the low-batt ery alarm, the char ge indicator noties you when the battery is low , and then the comput er enters the power -saving mode automatically . T o cause the comput er t o return fr om sleep (standby) mode and r esume oper ation, do one of the following: • P ress the Fn key .
• “Error messages” on page 44 • “No-beep symptoms” on page 44 • “L CD-relat ed symptoms” on page 44 • “Intermitt ent problems” on page 45 • “Undetermined pr oblems” on page 45 The symptom-to-FRU inde x in this section lists symptoms and errors and their possible causes.
T able 2. Numeric err or codes (continued) Symptom or error (beeps, if any) FRU or action, in sequence 0232 Extended RAM error— Extended RAM fails at offset nnnn. (two short beeps) 1. DIMM. 2. Syst em boar d. 0250 System battery err or—System battery is dead.
Error messages T able 3. Error messages Symptom or error (beeps, if any) FRU or action, in sequence Bad CRC2. Enter BIOS Setup Utility, and load Setup defaults. (two short beeps) Press F1 to enter BIOS Setup Utility . Press F9, and Enter to load the default setting.
If the L CD you are servicing has two or less visible defective pixels, it should not be considered faulty . However , if the L CD has thr ee or more visible defective pix els, it will be deemed as defective by L enovo and it should be r eplaced. Notes: • This policy applies to all ThinkPad Not ebooks pur chased on 1 January, 2008 or lat er .
d. Battery pack e. Hard disk drive f. External diskette drive or optical drive g. DIMM h. Optical disk or diskette in the int ernal drive i. PC Car ds 4. T urn on the comput er . 5. Determine whether the problem has been solved. 6. If the pr oblem does not recur , r econnect the r emoved devices one at a time until you nd the failing FRU .
Chapter 5. Status indicators This chapter presents the system status indicators that show the status of the comput er . 2 1 3 4 5 6 7 8 T able 6. Status indicators Indicator Meaning 1 Numeric lock By default, when the numeric lock is on, the indicator is displayed on the scr een.
T able 6. Status indicat ors (continued) Indicator Meaning 5 Device access Data is being read from or written to the hard disk drive. When this indicat or is on, do not put the computer into sleep (standby) mode or turn off the computer . Note: Do not move the computer while this indicator is on.
Chapter 6. Fn k ey combinations The following table shows the function of each combination of Fn with a function key . T able 7. Fn key combinations Key combination Description Fn+F1 Reserved.
T able 7. Fn k ey combinations (continued) Key combination Description Apply a pr esentation scheme dir ectly, with no need t o start Pr esentation Dir ector . T o disable this function and use the Fn+F7 key combination for switching a display output location, start P resentation Director , and change the settings.
T able 7. Fn k ey combinations (continued) Key combination Description Fn+ScrLk Enable or disable the numeric keypad. The indicat or of numeric lock will be displayed on the scr een. Fn+P ause Have the same function as the Br eak key . Fn+cursor keys These key combinations are for use with Windows Media Player .
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Chapter 7. FRU replacement notices This chapt er pr esents notices relat ed t o r emoving and replacing parts. Read this chapt er car efully befor e replacing any FRU.
Retaining serial numbers This section includes the following descriptions: • “Rest oring the serial number of the system unit” on page 54 • “Retaining the UUID” on page 54 • “Reading o.
The algorithm that gener ates the number is designed to pr ovide unique IDs until the year A.D . 3400. No two computers in the world have the same number . When you replace the syst em boar d, you must set the UUID on the new syst em board as follows: 1.
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Chapter 8. Removing and r eplacing a FRU This chapter pr esents dir ections and drawings for use in r emoving and replacing a FRU . Be sure t o observe the following general rules: 1. Do not try to service any computer unless you have been trained and certied.
T able 8. Removal steps of battery pack DANGER Use only the battery specied in the parts list for your computer . Any other battery could ignite or e xplode. Unlock the battery latch 1 . Holding the battery lock lever in the unlocked position 2 , r emove the battery pack in the direction shown by arr ow 3 .
T able 9. Removal steps of ExpressCard blank bezel (continued) 1 2 When installing: Make sur e that the bezel is correctly oriented as shown in the following gur e. T able 10. Removal steps of Media C ard blank bezel When you pr ess the Media C ard blank bez el 1 , it pops out 2 .
T able 10. Removal steps of Media Card blank bez el (continued) 1 2 When installing: Make sur e that the bezel is correctly oriented as shown in the following gur e.
T able 11. Removal st eps of optical drive or travel cover 1 Step Screw (quantity) Color T or que 1 M2 × 8 mm, at-head, nylon-coat ed (1) Black 0.181 Nm (1.85 kgfcm) 3 2 1040 Thermal cover F or access, remove this FRU: • “1010 Battery pack” on page 57 Chapter 8 .
T able 12. Removal steps of thermal cover Note: Loosen the scr ews 1 , but do not remove them. 1 1 1 1 1 1 2 Attention: Do not t ouch or apply any e xcessive force to the fan motor located in the slot. It might cause damage to the fan assembly or might cause the comput er to malfunction.
T able 13. Removal steps of HDD or SSD assembly 1 When installing: Make sure that the HDD or SSD connector is attached rmly . Chapter 8 . Removing and replacing a FRU 63.
T able 13. Removal steps of HDD or SSD assembly (continued) When installing: • Do not apply e xcessive force to the HDD or SSD br acket a . T o do so, you might bend or br eak it. • Before installing an HDD or SSD assembly into models with an mSA T A solid state drive, be sure to remove the mylar tape b as shown in the following illustr ation.
T able 14. Removal steps of HDD or SSD bracket (continued) 2 Step Screw (quantity) Color T orque 1 M3 × 3.5 mm, at-head (4) Silver 0.392 Nm (4 kgfcm) 1060 DIMM F or access, remove these FRUs in or der: • “1010 Battery pack” on page 57 • “1040 Thermal cover” on page 61 T able 15.
T able 15. Removal steps of DIMM (continued) Note: If only one DIMM is used on the comput er you ar e servicing, the car d must be installed in SLO T -0 ( a : lower slot), but not in SL O T -1 ( b : upper slot). b a When installing: Insert the notched end of the DIMM into the socket.
T able 16. Removal steps of fan assembly (continued) Note: Loosen the screws 2a to 2d in or der , but do not r emove them. When you attach the fan, secur e the scr ews in order . 2c 2b 2d 2a Note: Differ ent models might have differ ent numbers of screws in step 2 .
T able 16. Removal steps of fan assembly (continued) F or models with a discrete fan assembly: b a F or models with an integrated fan assembly: b 1080 CPU F or access, remove these FRUs in or der: •.
T able 17. Removal steps of CPU (continued) 2 a 1 When installing: Place the CPU above the CPU socket, and then rotate the head of the screw in the direction shown by arrow a to secur e the CPU . 1090 SIM slot cover F or access, remove this FRU: • “1010 Battery pack” on page 57 T able 18.
T able 18. Removal steps of SIM slot cover (continued) 1 2 Some models you are servicing might have the SIM card that the customer has installed. If the computer you are servicing has the SIM car d, remove it before you start the servicing. After you nish the servicing, make sure that you insert the card back into the slot rmly .
T able 18. Removal steps of SIM slot cover (continued) 4 5 1110 Wireless W AN slot cover and PCI Expr ess Mini Card for wireless W AN F or access, remove this FRU: • “1010 Battery pack” on page 57 T able 19. Removal steps of wireless WAN slot cover and PCI Express Mini Card for wireless W AN Note: Loosen the scr ew 1 , but do not remove it.
T able 19. Removal steps of wireless W AN slot cover and PCI Express Mini Card for wireless WAN (continued) 2 In st eps 3a and 3b , unplug the jacks by using the removal tool antenna RF connector (P/N: 08K7159) or pick the connectors with your ngers and gently unplug them in the dir ection of the arr ows.
1110 mSA T A solid state drive F or access, remove this FRU: • “1010 Battery pack” on page 57 Attention: • Do not dr op the drive or apply any physical shock to it. The drive is sensitive to physical shock. Impr oper handling can cause damage and permanent loss of data.
4 3 Step Screw (quantity) Color T or que 3 M2 × 3 mm, at-head, nylon-coated (1) Black 0.181 Nm (1.85 kgfcm) 1120 Palm r est assembly with cables F or access, remove these FRUs in or der: • “10.
T able 20. Removal steps of palm rest assembly with cables 2 2 2 2 2 1 1 2 2 When installing: Make sur e all the scr ews have been fastened to secure the palm r est. Step Screw (quantity) Color T orque 1 M2 × 8 mm, at-head, nylon-coated (1) Black 0.
T able 20. Removal steps of palm rest assembly with cables (continued) 3 3 4 76 Hardwar e Maintenance Manual.
T able 20. Removal steps of palm rest assembly with cables (continued) When installing: Attach the palm r est so that the two small projections of the palm rest a rmly t into the guide holes of the keyboard be zel, and them press the front side of the palm r est downward until it clicks into place.
T able 20. Removal steps of palm rest assembly with cables (continued) Note: In models with the ngerprint reader , the sensor is attached to the palm r est FRU . If the ngerprint reader is defective, you can r emove the ngerprint reader by referring t o step 8 as shown in the following gure.
T able 21. Removal steps of PCI Express Mini Card for wireless LAN (continued) 1a 1b 2 2 Step Screw (quantity) Color T or que 2 M2 × 3 mm, at-head, nylon-coat ed (2) Black 0.181 Nm (1.85 kgfcm) 3 When installing: Plug the gr ay cable into the jack labeled MAIN , and the black cable into the jack labeled AUX on the card.
1140 Backup battery F or access, remove these FRUs in or der: • “1010 Battery pack” on page 57 • “1030 Optical drive or tr avel cover ” on page 60 • “1120 P alm r est assembly with cables” on page 74 DANGER Use only the battery specied in the parts list for your computer .
T able 23. Removal steps of Bluetooth daughter card Step Screw (quantity) Color T or que 1 M2 × 3 mm, at-head, nylon-coat ed (1) Black 0.181 Nm (1.85 kgfcm) When installing: Make sur e that the connect or on bott om side of the car d is attached rmly t o the syst em boar d.
T able 24. Removal steps of Media Card Reader slot board and Media Card Reader cable assembly 1 1 When installing: Make sur e that the Media C ard Reader cable assembly is attached rmly t o the system boar d and the Media C ard Reader slot board.
T able 24. Removal steps of Media Card Reader slot board and Media Card Reader cable assembly (continued) 2 2 3 Step Screw (quantity) Color T orque 2 M2 × 3 mm, at-head, nylon-coated (2) Black 0.
T able 25. Removal steps of keyboard 1 When installing: Make sure the scr ew has been fastened to secure t o keyboar d. Step Screw (quantity) Color T or que 1 M2 × 5 mm, at-head, nylon-coat ed (1) Black 0.181 Nm (1.85 kgfcm) 2 4 2 3 5 6 7 When installing: Make sur e all the connectors are attached rmly t o the syst em boar d.
T able 25. Removal steps of keyboard (continued) 6 M2 × 3 mm, at-head, nylon-coat ed (1) Black 0.181 Nm (1.85 kgfcm) 7 M2 × 2 mm, at-head (1) Silver 0.181 Nm (1.85 kgfcm) 8 When installing: Attach the keyboard so that the keyboar d edges are under the fr ame as shown in the following gure.
• “1070 F an assembly” on page 66 • “1110 Wireless W AN slot cover and PCI Expr ess Mini C ard for wireless W AN” on page 71 • “1110 mSA T A solid stat e drive” on page 73 • “112.
T able 26. Removal st eps of keyboard bezel (continued) 4 4 7 5 6 5 6 Step Screw (quantity) Color T or que 4 M2 × 3 mm, at-head, nylon-coat ed (2) Black 0.181 Nm (1.85 kgfcm) When installing: Mak e sure that the connect ors are attached rmly t o the system boar d.
• “1010 Battery pack” on page 57 • “1030 Optical drive or tr avel cover ” on page 60 • “1110 Wireless W AN slot cover and PCI Expr ess Mini C ard for wireless W AN” on page 71 • .
T able 27. Removal steps of L CD unit (continued) In step 4 , r elease wireless antenna cables fr om the cable guides. F or ThinkP ad L520 models: 4 4 4 4 4 4 4 4 4 4 4 F or ThinkPad L420 and L421 models: 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 When installing: Make sure that the cables ar e attached to the cable guides rmly .
T able 27. Removal steps of L CD unit (continued) 5 5 5 5 Step Screw (quantity) Color T or que 5 M2.5 × 6.5 mm, at-head, nylon-coated (4) Black 0.392 Nm (4 kgfcm) 6 6 2010 T op shielding assembly .
• “1010 Battery pack” on page 57 • “1030 Optical drive or tr avel cover ” on page 60 • “1110 Wireless W AN slot cover and PCI Expr ess Mini C ard for wireless W AN” on page 71 • .
T able 28. Removal steps of t op shielding assembly (continued) F or ThinkPad L420 and L421 models: 2 1 1 2 2 3 Step Screw (quantity) Color T orque 1 M2 × 3 mm, at-head, nylon-coated (2) Black 0.181 Nm (1.85 kgfcm) 2 M2 × 5 mm, at-head, nylon-coated (3) Black 0.
2020 System boar d assembly Important notices for handling the system board: When handling the syst em board, bear the following in mind. • The system board has an acceleromet er , which can be brok en by applying sever al thousands of G-forces.
T able 29. Location of major sensitive components on the system board in ThinkP ad L420, L421, and L520 models The following components solder ed on the top side of the system board are e xtremely sensitive. When you service the system boar d, avoid any kind of rough handling.
T able 29. L ocation of major sensitive components on the system board in ThinkP ad L420, L421, and L520 models (continued) F or ThinkP ad L520 models with an integr ated thermal module (top side view.
T able 29. L ocation of major sensitive components on the system board in ThinkP ad L420, L421, and L520 models (continued) F or ThinkP ad L420 and L421 models with a discr ete thermal module (bottom .
T able 30. Removal steps of syst em board assembly F or ThinkP ad L520 models: 1 1 1 1 Step Screw (quantity) Color T or que 1 M2 × 5 mm, at-head, nylon-coat ed (4) Black 0.181 Nm (1.85 kgfcm) F or ThinkPad L420 and L421 models: 1 1 Step Screw (quantity) Color T or que 1 M2 × 5 mm, at-head, nylon-coat ed (2) Black 0.
T able 30. Removal steps of system board assembly (continued) F or ThinkP ad L520 models: 2 2 3 F or ThinkPad L420 and L421 models: 2 2 3 When installing: Mak e sure that the connect ors are attached rmly t o the system boar d.
• “1050 Hard disk drive or solid state drive assembly” on page 62 • “1110 Wireless W AN slot cover and PCI Expr ess Mini C ard for wireless W AN” on page 71 • “1110 mSA T A solid stat .
T able 31. Removal steps of USB connect or board and USB cable assembly (continued) F or ThinkPad L420 and L421 models: 2040 DC-in cable and base cover F or access, remove these FRUs in or der: • .
T able 32. Removal st eps of DC-in cable and base cover F or ThinkP ad L520 models: 2 1 1 3 Step Screw (quantity) Color T or que 1 M2 × 3 mm, at-head, nylon-coat ed (2) Black 0.181 Nm (1.85 kgfcm) F or ThinkPad L420 and L421 models: 3 1 2 Step Screw (quantity) Color T or que 1 M2 × 5 mm, at-head, nylon-coat ed (1) Black 0.
T able 32. Removal steps of DC-in cable and base cover (continued) Cable r outing: Route the cable as shown in the following gur es. F or ThinkP ad L520 models: F or ThinkPad L420 and L421 models: Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of sever al kinds.
7 Serial number label 13 Pr oduct label 8 FCC label F or some models, you need t o apply two FCC labels. Check the old base cover; if it has two FCC labels, apply both to the new base cover .
• “1110 Wireless W AN slot cover and PCI Expr ess Mini C ard for wireless W AN” on page 71 • “1110 mSA T A solid stat e drive” on page 73 • “1120 P alm r est assembly with cables” on.
• “1110 Wireless W AN slot cover and PCI Expr ess Mini C ard for wireless W AN” on page 71 • “1110 mSA T A solid stat e drive” on page 73 • “1120 P alm r est assembly with cables” on.
T able 35. Removal steps of integrated camera 1 1 2 3 Step Screw (quantity) Color T or que 1 M2 × 3 mm, at-head, nylon-coat ed (2) Black 0.181 Nm (1.
T able 36. Removal steps of antenna assembly Release the ant enna cables fr om the cable guides of the L CD rear cover assembly and from the hinges. F or ThinkP ad L520 models: 1 1 1 1 1 1 F or ThinkPad L420 and L421 models: 1 1 1 1 1 1 When installing: Route the cables as shown in the following gure.
T able 36. Removal steps of antenna assembly (continued) 2 2 2 2 2 2090 Hinges, L CD panel, L CD cable, and L CD rear cover assembly F or access, remove these FRUs in or der: • “1010 Battery pack.
T able 37. Removal steps of hinges, L CD panel, L CD cable, and L CD rear cover assembly (continued) 1 1 1 1 Step Screw (quantity) Color T or que 1 M2 × 5 mm, at-head, nylon-coat ed (4) Black 0.181 Nm (1.85 kgfcm) F or ThinkPad L420 and L421 models: 1 1 Step Screw (quantity) Color T or que 1 M2 × 5 mm, at-head, nylon-coat ed (2) Black 0.
T able 37. Removal steps of hinges, L CD panel, L CD cable, and L CD rear cover assembly (continued) 2 3 3 4 3 3 4 Step Screw (quantity) Color T or que 3 M2 × 3 mm, at-head, nylon-coat ed (4) Black 0.
T able 37. Removal steps of hinges, L CD panel, L CD cable, and L CD rear cover assembly (continued) 7 5 6 When installing: Mak e sure that the L CD connect or is attached rmly .
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Chapter 9. Locations This chapter presents the locations of ThinkP ad L420, L421, and L520 har dware components. F ront view 1 2 3 3 4 6 5 7 8 9 11 12 10 13 14 15 16 17 18 19 1 Integr ated camer a 11 .
Rear view 2 3 4 1 6 7 5 1 Combo audio jack 5 External monitor connect or 2 DisplayP ort connector 6 Security keyhole 1 3 eSA T A/USB combo connector 7 USB connector 4 RJ-45 (E thernet) connector 1 : In some models, the security keyhole is locat ed on the right side of the computer .
Chapter 10. P arts list This chapter contains following lists of the service parts. • “Overall” on page 116 • “L CD FRUs” on page 144 • “Keyboar d” on page 152 • “Miscellaneous p.
Overall 1 2 3 4 5 8 7 6 10 9 11 12 28 27 26 23 24 25 22 21 20 19 18 17 16 13 14 15 116 Hardwar e Maintenance Manual.
T able 38. P arts list—Overall No. FRU (Overall) FRU no. CRU ID 1 LCD unit (see “L CD FRUs” on page 144.) 2 Keyboard bez el assembly for 14W 04W1813 N 2 Keyboard bez el assembly for 15W 04W1814 .
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 4 4-GB DDR3-1333 SDRAM SO-DIMM (PC3-10600) car d • 7826-C TO , 39x, 3Ax, 3Bx • 7827-C TO , 5Rx, 45x, 46x, 4Cx, 4Hx, 4Kx.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 10 Battery pack, 4 cell Li-ion (2.2 Ah) • 7826-C TO , 34x, 3Fx, 3Gx • 7827-C TO , 5Mx, 5Nx, 5Px • 7829-C TO • 7853-.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 10 Battery pack, 6 cell Li-ion (2.2 Ah) • 7826-C TO , 3Px, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Qx • 7827-C TO , 4Cx, 4Dx, 4E.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 10 Battery pack, 6 cell Li-ion (2.6 Ah) • 7826-C TO , 3Rx, 3Sx, 3Tx, 3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 32x, 33x, 35x, 36x, 37x, 38.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 10 Battery pack, 6 cell Li-ion (2.6 Ah) • 7826-C TO , 3Rx, 3Sx, 3Tx, 3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 32x, 33x, 35x, 36x, 37x, 38.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 10 Battery pack, 9 cell Li-ion (2.8 Ah) • 7826-C TO • 7827-C TO , 45x, 46x, 24x, 23x • 7829-C TO , 45x, 46x • 7853-.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 12 DVD-RAM/RW drive • 7826-C TO , 3Px, 3Rx, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Qx, 3Sx, 3Tx, 3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 32x, 33.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 12 DVD-RAM/RW drive • 7826-C TO , 3Px, 3Rx, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Qx, 3Sx, 3Tx, 3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 32x, 33.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 12 DVD-RAM/RW drive • 7826-C TO , 3Px, 3Rx, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Qx, 3Sx, 3Tx, 3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 32x, 33.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 13 SIM slot cover with screw 60Y4187 * 14 Wireless LAN car d slot cover with screw for 14W 60Y4185 * 14 Wireless LAN car d .
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 16 SA T A hard disk drive, 160 GB, 7,200 rpm, 7mmH • 7826-C TO • 7827-C TO • 7829-C TO • 7853-C TO • 7854-C TO .
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 16 SA T A hard disk drive, 250 GB, 5,400 rpm • 7826-C TO • 7827-C TO , 5Qx, 5Sx, 52x, 53x, 55x, 56x, 58x • 7829-C TO .
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 16 OP AL SA T A hard disk drive, 250 GB, 7,200 rpm • 7826-C TO • 7827-C TO • 7829-C TO • 7853-C TO • 7854-C TO .
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 16 SA T A hard disk drive, 320 GB, 5,400 rpm • 7826-C TO , 34x • 7827-C TO , 5Jx, 5Rx, 4Lx, 5Cx • 7829-C TO , 4Yx, 49.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 16 SA T A hard disk drive, 320 GB, 7,200 rpm • 7826-C TO , 3Px, 3Rx, 3Nx, 3Qx, 3Xx, 3Yx, 3Cx, 3Dx, 3Ex • 7827-C TO , 5H.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 16 SA T A hard disk drive, 320 GB, 7,200 rpm, 7mmH • 7826-C TO , 3Px, 3Rx, 3Nx, 3Qx, 3Xx, 3Yx, 3Cx, 3Dx, 3Ex • 7827-C T.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 16 SA T A hard disk drive, 500 GB, 7,200 rpm • 7826-C TO , 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Sx, 3Tx, 3Ux, 3Vx, 3Wx, 32x, 33x, 35.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 16 SA T A solid state drive, 128 GB, 2.5", 7mmH • 7826-C TO • 7827-C TO , 4Tx, 23x • 7829-C TO , 4Ax • 7853-C .
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 17 Ericsson F5521gw Wireless W AN car d • 7826-C TO • 7827-C TO • 7829-C TO • 7853-C TO • 7854-C TO • 7856-C TO.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 17 mSA T A solid stat e drive, 80GB • 7826-C TO , 3Px, 3Rx, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Qx, 3Sx, 3Tx, 3Ux, 3Vx, 3Wx, 3.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 21 ThinkPad 11b/g/n Wir eless LAN Mini-PCI Express Adapter II • 7826-C TO , 3Px, 3Rx, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Qx, .
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 21 Intel Centrino Advanced-N + WiMAX 6250, Russia SK U • 7826-C TO • 7827-C TO • 7829-C TO • 7853-C TO • 7854-C TO • 7856-C TO • 5015-C TO • 5016-C TO • 5017-C TO • 5019-C TO • 7859-C TO • 7860-C TO 60Y3209 ** 22 Bluetooth daughter car d (BDC-3.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 22 Bluetooth daughter car d (BDC-3.0) • 7826-C TO , 3Px, 3Rx, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Qx, 3Sx, 3Tx, 3Ux, 3Vx, 3Wx,.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 23 CPU assembly, Intel Core i5-2410M P rocessor (2.30 GHz) • 7826-C TO , 3Hx, 3Lx, 3Ux, 3Vx • 7827-C TO , 49x • 7829-.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 23 CPU assembly, Intel Core i7-2620M P rocessor (2.70 GHz) • 7826-C TO , 39x • 7827-C TO , 4Cx, 4Hx, 4Kx, 4Px, 4Qx, 4Ux.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 24 System board assembly, HM65 14W non-docking, non- TPM, A UO4, without wir eless WAN • 7826-C TO • 7827-C TO • 7829.
T able 38. Parts list—Overall (continued) No. FRU (Overall) FRU no. CRU ID 24 System board assembly, HM65 integr ated 15W Dock, non- TPM, A UO4, with wir eless WAN • 5015-C TO • 5016-C TO , 4Hx,.
• 15.6-inch HD LED-backlight L CD (T able 40 “P arts list—15.6-inch HD L CD” on page 148) • 15.6-inch HDx, LED-backlight L CD (T able 41 “Parts list—15.
T able 39. Parts list—14.0-inch HD L CD No. FRU (14.0-inch HD L CD) FRU no. CRU ID 1 LCD fr ont bez el for 14W 04W1735 N 2 Integrat ed camer a with microphone (1M) • 7826-C TO , 3Px, 3Rx, 3Hx, 3Jx.
T able 39. P arts list—14.0-inch HD L CD (continued) No. FRU (14.0-inch HD L CD) FRU no. CRU ID 2 Integrat ed camer a with microphone (1M) • 7826-C TO , 3Px, 3Rx, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Qx.
T able 39. P arts list—14.0-inch HD L CD (continued) No. FRU (14.0-inch HD L CD) FRU no. CRU ID 8 LCD module, 14.0-inch HD anti-glar e • 7826-C TO , 3Px, 3Rx, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Qx, 3S.
T able 40. P arts list—15.6-inch HD L CD (continued) No. FRU (15.6-inch HD L CD) FRU no. CRU ID 2 Integrat ed camera with microphone (1M) • 5015-C TO , 33x, 34x • 5016-C TO , 5Px, 22x, 5Qx, 44x,.
T able 40. P arts list—15.6-inch HD L CD (continued) No. FRU (15.6-inch HD L CD) FRU no. CRU ID 8 LCD module, 15.6-inch HD anti-glare • 5015-C TO , 38x, 39x, 3Ax, 3Bx, 3Cx, 36x, 37x, 33x, 34x • .
T able 41. P arts list—15.6-inch HD+ L CD (continued) No. FRU (15.6-inch HD+ L CD) FRU no. CRU ID 2 Integrat ed camer a with microphone (1M) • 5015-C TO • 5016-C TO , 5Kx, 46x, 45x, 47x, 4Hx, 4T.
K eyboard T able 42. P arts list—K eyboard Language FRU no. CRU ID Arabic 45N2288 45N2358 45N2428 Belgian 45N2289 45N2359 45N2429 Brazilian P ortuguese 45N2287 45N2357 45N2427 Bulgarian 45N2290 45N2.
Miscellaneous parts T able 43. Parts list—Miscellaneous parts FRU FRU no. CRU ID Screw kit (including nylon-coat ed screws): • M2 × 2 mm (silver), at-head (1) • M2 × 3 mm (black), at-head (43) • M2 × 5 mm (black), at-head (48) • M2 × 6 mm (black), at-head (2) • M2 × 8 mm (black), at-head (2) • M2.
T able 44. P arts list—Miscellaneous parts (continued) FRU FRU no. CRU ID System boar d miscellaneous parts: • Mini Car d stud, system board • Stud, syst em boar d • Insulation (top) • Insul.
T able 46. Parts list—3-pin ac power adapters FRU FRU no. CRU ID 3-pin (65 W , 20 V) adapter (models CT O , xxA, xxB, xxC, xxG, xxH, xxK, xxM, xxQ, xxT , xxV) 42T5283 3-pin (65 W , 20 V) adapter (mo.
T able 48. P arts list—3-pin power cords (continued) Country or region FRU no. CRU ID Italy • models -CT O , xxG 42T5047 42T5132 Kor ea • models -CT O , xxK 42T5077 42T5162 Switzerland • models -CT O , xxG 42T5044 42T5129 T aiwan • models -CT O , xxV 42T5071 42T5156 U.
T able 49. Parts list—Windows XP P rofessional (32 bit) recovery DVDs (continued) Language P/N CRU ID Kor ean 03W7489 Norwegian 03W7491 P olish 03W7492 P ortuguese 03W7493 Russian 03W7494 Simplie.
• 7859-C T O • 7860-C T O T able 51. P arts list—Windows Vista Business (32 bit) recovery DVDs Language P/N CRU ID Japanese 03W8059 US English 03W8060 N Windows 7 Home Basic (32 bit) DVDs Window.
• 5016-C T O • 5017-C T O • 5019-C T O • 7859-C T O • 7860-C T O T able 53. P arts list—Windows 7 Home Premium (32 bit) recovery DVDs Language P/N CRU ID Indian English 03W8107 Simplied.
T able 54. Parts list—Windows 7 Home P remium (64 bit) recovery DVDs (continued) Language P/N CRU ID P ortuguese 03W8123 Romanian 03W8124 Russian 03W8125 Serbian-Latin 03W8128 Simplied Chinese 03.
• 7854-C T O, 4Wx, 4Ux, 4Vx, 4Nx, 4Px, 4Qx, 4Rx, 4Sx, 4Tx, 34x, 37x, 38x, 39x, 3Ax, 3Bx, 3Cx, 3Ex, 3Fx, 3Gx, 3Hx, 3Jx, 3Lx, 3Nx, 3Px, 3Sx, 3Tx, 3Xx, 3Yx, 3Zx, 42x, 43x, 44x, 45x, 46x, 4Gx, 4Hx, 4Kx,.
Windows 7 Ultimate (32 bit) DVDs Windows 7 Ultimate (32 bit) is pr einstalled as the oper ating system in the following models: • 7826-C T O • 7827-C T O • 7829-C T O • 7853-C T O • 7854-C T O • 7856-C T O • 5015-C T O • 5016-C T O • 5017-C T O • 5019-C T O • 7859-C T O • 7860-C T O T able 57.
• 5015-C T O • 5016-C T O • 5017-C T O • 5019-C T O • 7859-C T O • 7860-C T O T able 59. Parts list—Windows 7 Ultimate (64 bit) recovery DVDs Language P/N CRU ID Indian English 03W8135 Russian 03W8136 US English 03W8137 N Common service tools T able 60.
164 Hardwar e Maintenance Manual.
Appendix A. Notices Lenovo may not offer the pr oducts, services, or features discussed in this document in all countries. Consult your local Lenovo repr esentative for information on the pr oducts and services curr ently available in your area.
Electronic emissions notices F or electr onic emission information on Class B digital devices, r efer to the corr esponding information in the User Guide .
.
Part Number: 0A60342_01 (1P) P/N: 0A60342_01 *0A60342_01*.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Lenovo L421 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Lenovo L421 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Lenovo L421, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Lenovo L421 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Lenovo L421, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Lenovo L421.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Lenovo L421. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Lenovo L421 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
