Benutzeranleitung / Produktwartung THINKPAD X121E des Produzenten IBM
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Har dwar e Maint enance Manual ThinkP ad X121e.
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 103.
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 .
2050 Wireless LAN ant enna assembly, wir eless WAN antenna assembly, and L CD rear cover assembly . . . . . . . . . . . . . . . . . 76 Chapter 9. L ocations . . . . . . . . . 79 F ront view . . . . . . . . . . . . . . . . 79 Rear view . . . . . . . . .
About this manual This manual contains service and r eference information for the following ThinkPad ® pr oducts. ThinkPad X121e Machine types (MT) 3045, 3048, 3049, 3051, 3053, 3055 Use this manual along with the advanced diagnostic tests to troubleshoot problems.
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Chapter 1. Safety information This chapter presents following safety information that you need to be familiar with befor e you service a ThinkP ad Notebook.
Electrical safety Observe the following rules when working on electrical equipment. Important: Use only approved tools and t est equipment. Some hand tools have handles cover ed 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 to assist you in identifying pot entially unsafe conditions.
2. Mak e sur e 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 inserted 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 DANGER 8 Hardwar e Maintenance Manual.
DANGER DANGER DANGER DANGER DANGER Chapter 1 . Safety information 9.
DANGER DANGER VORSICHT VORSICHT VORSICHT 10 Hardwar e Maintenance Manual.
VORSICHT VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 . Safety information 11.
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Chapter 1 . Safety information 13.
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Chapter 1 . Safety information 15.
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Chapter 1 . Safety information 17.
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Chapter 2. Important ser vice information This chapter pr esents following important service information that applies to all machine types supported by this manual: • “Str ategy for replacing FRUs.
• 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.
• The PEW r ecord is the 4-digit MT and 3-digit model, where model = “C T O” (Example: 1829-CT O). • eSupport will show both the CT O and CMV machine type models (Example: 1829-CT O and 1829-W15 will be found on the eSupport site.) • The HMM will have the 4-digit MT and 3-digit CT O model only (Example: 1829-C T O).
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Chapter 3. General checkout This chapter pr esents following information: • “What t o do rst” on page 23 • “Checkout guide” on page 24 – “Diagnostics using PC-Doctor for DOS” on p.
The following are not covered under warr anty: • L CD panel cracked fr om the application of e xcessive force or from being dropped • Scr atched (cosmetic) parts • Dist ortion, deformation, or d.
Note: When you initialize the computer congur ation, some devices are disabled, such as the serial port. If you test one of these devices, you will need to enable it by using Conguration 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 • System Memory • Systemboar d • Video Adapter • Fixed Disks • Diskette Drives • Other Devices .
Note: T o install the latest L enovo ThinkV antage T oolbox on the comput er , go to http://web.lenovothinkvantagetoolbo x.com/ click Download Lenovo ThinkV antage T oolbox , and then follow the instructions on the Web sit e.
T able 1. FRU tests (continued) FRU Applicable t est T r ackP oint or pointing device If the T rackP oint does not work, check the conguration as specied in the ThinkPad Setup. If the T r ackP oint is disabled, select Automatic to enable it. After you use the T rackP oint, the point er may drift on the scr een for a short time.
Note: Output voltage of pin no.2 of the ac power adapter may different fr om the one you are servicing. 3. If the voltage is not corr ect, replace the ac power adapter . 4. If the voltage is acceptable, do the following: • Replace the system board. • If the problem persists, go to “FRU tests” on page 27.
4. If the voltage is more than +11.0 V dc, measur e the r esistance between battery t erminals 5 and 7. The r esistance must be 4 to 30 K Ω. If the r esistance is not corr ect, replace the batt ery pack. If the resistance is correct, r eplace the system boar d.
Chapter 4. Related ser vice information This chapter pr esents following information: • “Restoring the fact ory contents by using Recovery Disc Set” on page 31 • “P asswords” on page 32 .
2. Insert the Operating System Recovery Disc int o the DVD drive. 3. P ress F10 to save the ThinkP ad Setup congur ation changes. F ollow the instructions on the scr een to begin the r ecovery pr ocess. 4. Select your language and click Ne xt . 5. Read the license.
Attention: If the user HDP has been forgotten, check whether a master har d disk password has been set. If a master hard disk password has been set, it can be used to access the hard disk drive.
1. T urn on the comput er . 2. When the ThinkP ad logo comes up, immediately press F1 to enter ThinkP ad Setup. 3. Select Security . 4. Select P assword . 5. Select Hard-disk x password , wher e x is the letter of the har d disk drive. A pop-up window opens.
• The time set on the r esume timer elapses. Note: The comput er does not accept any input immediately aft er it enters sleep (standby) mode. Wait a few seconds before taking any action to reenter oper ation mode.
Note: F or a device not supported by diagnostic codes in the ThinkP ad Notebooks, see the manual for that device. Numeric err or codes T able 2. Numeric error codes Symptom or error FRU or action, in sequence 0177 Bad SVP data, stop POS T task- The checksum of the supervisor passwor d in the EEPROM is not corr ect.
Error messages T able 3. Error messages Symptom or err or (beeps, if any) FRU or action, in sequence F an err or . 1. F an . 2. Thermal gr ease. 3. Syst em boar d. Thermal sensing error . System board . This syst em does not support batt eries that are not genuine Lenovo-made or authoriz ed.
T able 5. No-beep symptoms (continued) Symptom or error FRU or action, in sequence The power -on passwor d prompt appears. A power -on passwor d or a supervisor passwor d is set. T ype the passwor d and press Enter . The har d-disk password prompt appears.
Undetermined problems If the diagnostic tests did not identify the adapt er or device that has failed, if wr ong devices are installed, or if the syst em simply is not operating, follow these pr ocedures t o isolate the failing FRU (do not isolate FRUs that have no defects).
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Chapter 5. Status indicators This chapter presents the system status indicators that show the status of the computer . 1 2 3 T able 7. Status indicators Indicator Meaning 1 Caps lock When the Caps Lock mode is enabled, the Caps Lock indicat or is displayed on the screen.
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Chapter 6. Fn k ey combinations The following table shows the function of each combination of Fn with a function k ey . T able 8. Fn key combinations Key combination Description Fn+Esc Speaker mut e If you mute the sound and then turn off your computer , the sound will remain mut ed when you turn on your comput er again.
T able 8. Fn key combinations (continued) Key combination Description F or Windows 7: Switch between the computer display and an e xternal monitor . Windows will show these display options: • Comput.
Chapter 7. FRU replacement notices External CRU statement t o customers: Some problems with your pr oduct can be r esolved with a replacement part you can install yourself, called a “Cust omer Replaceable Unit” or “CRU . ” Some CRUs ar e designat ed as Self-service CRUs and others are designated as Optional-service CRUs.
Notes: • Make sure that you use the correct scr ew. If you have a tor que screwdriver , tighten all scr ews rmly to the tor que shown in the table for each step in Chapter 8 “Removing and r eplacing a FRU” on page 49. Never use a screw that you removed.
MTM on the rear label: TTTT -C T O S/N SSSSSSS Product ID on the rear label: TTTT -MMM (Use this number when setting the serial number) In the example, the Serial Number to be input is “1S TTTTMMMSSSSSSS”.
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Chapter 8. Removing and replacing a FRU External CRU statement t o customers: Some problems with your pr oduct can be r esolved with a replacement part you can install yourself, called a “Cust omer Replaceable Unit” or “CRU . ” Some CRUs ar e designat ed as Self-service CRUs and others are designated as Optional-service CRUs.
T o remove the SIM card, you need t o remove the batt ery pack rst. (See “1010 Battery pack” on page 50.) After you nish the servicing, make sure that you insert the car d back int o the slot rmly .
T able 9. Removal steps of battery pack (continued) 2 2 1 When installing: Install the battery pack in the slot, and make sure that the battery latch is in the locked position. 1020 Bott om slot cover F or access, r emove this FRU: • “1010 Battery pack” on page 50 T able 10.
1030 Memory modules F or access, remove these FRUs in or der: • “1010 Battery pack” on page 50 • “1020 Bottom slot cover” on page 51 T able 11. Removal steps of memory modules 1 1 2 Note: If only one memory module is used on the computer you are servicing, the card must be installed in the upper SL OT a , but not in the lower SL O T b .
1040 Har d disk drive or solid stat e drive assembly F or access, remove these FRUs in or der: • “1010 Battery pack” on page 50 • “1020 Bottom slot cover” on page 51 Attention: • Do not dr op the drive or apply any physical shock t o it.
T able 12. Removal st eps of hard disk drive or solid state drive (continued) 3 When installing: Make sure the hard disk drive or solid state drive assembly is attached rmly . T able 13. Removal steps of the hard disk drive or solid state drive bracket 1 1 2 Step Screw (quantity) Color T orque 1 M3 × 2.
T able 14. Removal steps of PCI Express Mini Card for wireless LAN In step 1 , unplug the jacks by using the removal tool antenna RF connector (P/N: 08K7159) or pick the connect ors with your ngers and gently unplug them in the direction of the arr ows.
T able 14. Removal steps of PCI Express Mini Card for wireless LAN (continued) When installing: Plug the gray cable int o the jack marked MAIN or M , and the black cable into the jack marked A UX or A on the card.
T able 15. Removal steps of PCI Express Mini Card for wireless W AN (continued) 3 1070 K eyboard F or access, remove these FRUs in or der: • “1010 Battery pack” on page 50 • “1020 Bottom slot cover” on page 51 T able 16. Removal steps of k eyboard 1 1 When installing: Mak e sure the scr ews have been fast ened to secure to k eyboard.
T able 16. Removal st eps of keyboar d (continued) 2 2 3 4 6 5 7 8 When installing: Make sur e that the connect ors are attached rmly . 58 Hardwar e Maintenance Manual.
T able 16. Removal st eps of keyboar d (continued) When installing: Attach the k eyboard so that the keyboar d edge is under the frame as shown in the following gure.
T able 17. Removal steps of power sub card (continued) 3 2 Step Screw (quantity) Color T orque 2 M2 × 3 mm, wafer -head, nylon-coated (1) Black 0.181 Nm (1.85 kgfcm) T able 18. Removal steps of microphone 2 When installing: Make sur e that the connect ors are attached rmly .
T able 19. Removal steps of t op case assembly 1 1 1 1 Step Screw (quantity) Color T orque 1 • F ront side: M2 × 5 mm, wafer -head, nylon-coat ed (2) • Rear side: M2.5 × 5 mm, wafer -head, nylon-coated (2) Black 0.181 Nm (1.85 kgfcm) 2 2 2 7 3 4 5 6 Step Screw (quantity) Color T orque Chapter 8 .
T able 19. Removal steps of top case assembly (continued) 2 M2 × 5 mm, wafer -head, nylon-coated (3) Black 0.181 Nm (1.85 kgfcm) In st ep 8 , push the top case assembly out fr om the frame as shown i.
T able 20. Removal steps of Bluetooth daughter card (continued) Step Screw (quantity) Color T orque 1 M2 × 3 mm, wafer -head, nylon-coated (1) Black 0.181 Nm (1.85 kgfcm) When installing: Make sure that the connector on the bottom side of the car d is attached rmly to the syst em board.
T able 21. Removal steps of speaker assembly (continued) When installing: A ttach the speaker assembly and rout e the cable as shown in the following gur e, and make sure that the speaker connector is attached rmly .
1130 System board assembly, fan assembly, and backup batter y Important notices for handling the system board: When handling the syst em board, bear the following in mind. • The system board has an acceler ometer , which can be br oken if sever al thousands of G-for ces ar e applied.
T able 23. Removal steps of system board (continued) 7 2 1 1 4 3 6 5 Step Screw (quantity) Color T orque 1 M2 × 3 mm, wafer -head, nylon-coated (2) Black 0.181 Nm (1.85 kgfcm) When installing: Make sur e that the connect or is attached rmly to the system board.
T able 24. Removal st eps of fan assembly and backup battery Loosen the screws 10 . DANGER Use only the battery specied in the parts list for your computer . Any other batt er y could ignite or explode. 11 13 14 10 10 10 10 12 When installing: Make sur e that the connector is attached rmly .
T able 25. Removal st eps of CR T board assembly 2 1 4 3 2 3 Step Screw (quantity) Color T orque 3 M2 × 3 mm, wafer -head, nylon-coated (2) Black 0.392 Nm (4 kgfcm) When installing: Make sur e that the connect or is attached rmly to the system board.
T able 26. Removal steps of DC-in sub card 3 1 2 Applying labels t o the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. The following illustr ations show the location of each label. 5 7 2 1 3 6 4 8 Chapter 8 .
10 9 11 12 16 15 17 18 20 23 24 13 14 19 22 21 Note: If the Windows Certicate of Authentication label (COA) 2 or 9 is attached t o a part that is r eplaced, return the old part with the label attac.
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 t o the new base cover . 2010 L CD unit F or access, remove these FRUs in or der: .
T able 27. Removal st eps of L CD unit (continued) 2 2 1 1 1 1 Step Screw (quantity) Color T orque 3 M2.5 × 5 mm, wafer -head, nylon-coated (4) Black 0.
T able 27. Removal st eps of L CD unit (continued) 2 2 2 2 2 2 2 2 2 2 2 When installing: Make sur e that the connect or is attached rmly to the system board.
T able 28. Removal steps of L CD bezel assembly (continued) 2 2 2 2 2 2 2 2 2 2 2 When installing: Make sure that all the latches ar e attached rmly .
2040 L CD panel, L CD cable, and hinges F or access, remove these FRUs in or der: • “1010 Battery pack” on page 50 • “1020 Bottom slot cover” on page 51 • “1040 Hard disk drive or soli.
T able 31. Removal st eps of hinges 1 1 2 2 Step Screw (quantity) Color T orque 1 M2 × 4 mm, wafer -head, nylon-coated (2) Silver 0.181 Nm (1.85 kgfcm) 2050 Wireless LAN antenna assembly, wir eless W.
T able 32. Removal steps of Wireless LAN antenna assembly, wireless WAN antenna assembly, and L CD rear cover assembly (continued) 1 1 1 2 2 2 2 2 2 1 1 1 3 3 Cable routing: When you install the antenna assembly, r oute the cables as shown in the following gure.
T able 32. Removal steps of Wireless LAN antenna assembly, wireless WAN antenna assembly, and L CD rear cover assembly (continued) a b a : Wireless LAN AUX antenna (black) and wireless WAN A UX antenn.
Chapter 9. L ocations This chapt er pr esents the locations of the ThinkP ad X121e har dware components. F ront view 1 2 3 4 5 6 7 8 9 10 11 1 Integr ated camera 7 T ouch pad 2 P ower switch 8 T r ack.
Rear view 1 2 3 4 5 6 7 1 Sleep (standby) status indicator 5 HDMI port 2 Combo audio jack 6 F an louvers 3 Ethernet connector 7 Ext ernal monitor connect or 4 USB connector F or the description of the power status indicator , see Chapter 5 “Status indicators” on page 41.
Chapter 10. P arts list This chapter contains following lists of the service parts. • “Overall” on page 82 • “L CD FRUs” on page 90 • “Keyboar d” on page 94 • “Miscellaneous part.
Overall 1 5 8 11 12 13 14 15 17 16 20 10 9 21 18 19 7 6 2 4 3 82 Hardwar e Maintenance Manual.
T able 33. P arts list-Overall No. FRU (Over all) FRU no. CRU ID 1 L CD unit (see “L CD FRUs” on page 90) 2 Keyboar d be zel assembly with ngerprint reader • 3045-C TO , 63x, 64x, 65x, 66x, 6.
T able 33. Parts list-Overall (continued) No. FRU (Over all) FRU no. CRU ID 5 Battery pack, 6 cell Li-ion (2.8 Ah) • 3045-C TO , 62x, 63x, 64x, 65x, 66x, 67x, 68x, 6Ax, 6Bx, 6Cx, 6Dx, 6Fx, 6Jx, 6Mx,.
T able 33. Parts list-Overall (continued) No. FRU (Over all) FRU no. CRU ID 7 USB sub card • 3045-C TO , 62x, 63x, 64x, 65x, 66x, 67x, 68x, 69x, 6Ax, 6Bx, 6Cx, 6Dx, 6Fx, 6Gx, 6Hx, 6Jx, 6Kx, 6Mx, 6Px.
T able 33. Parts list-Overall (continued) No. FRU (Over all) FRU no. CRU ID 12 SA T A har d disk drive, 250 GB, 5400 rpm • 3045-C TO , 62x, 69x, 6Ax, 6Bx, 6Cx, 6Dx, 6Gx, 6Hx • 3048-C TO , 2Lx, 2Mx.
T able 33. Parts list-Overall (continued) No. FRU (Over all) FRU no. CRU ID 13 Bluet ooth daught er car d (BDC-3.0) • 3045-C TO , 63x, 64x, 65x, 66x, 67x, 68x, 6Dx, 6Fx, 6Jx, 6Kx, 6Mx, 6Px, 6Qx, 6Rx.
T able 33. Parts list-Overall (continued) No. FRU (Over all) FRU no. CRU ID 14 Syst em board assembly, Intel Celeron 847 P rocessor , non- TPM • 3045-C TO • 3048-C TO • 3049-C TO 04W1825 N 15 1 .
T able 33. Parts list-Overall (continued) No. FRU (Over all) FRU no. CRU ID 16 Gobi3000 Wir eless WAN car d for Malaysia • 3045-C TO • 3048-C TO • 3049-C TO • 3051-C TO • 3053-C TO • 3055-.
T able 33. Parts list-Overall (continued) No. FRU (Over all) FRU no. CRU ID 21 T rackP oint caps 91P9642 * - ac power adapter (see “ac power adapters” on page 95) L CD FRUs In ThinkP ad X121e models, the type of the L CD is 11.6-inch HD LED-backlight L CD (T able 34 “P arts list-L CD” on page 91).
1 2 3 7 6 4 5 T able 34. P arts list-L CD No. FRU (L CD) FRU no. CRU ID 1 LCD front bezel 04W2229 N 2 LCD module, 11.6-inch HD anti-glare 04W1594 N Chapter 10 .
T able 34. Parts list-L CD (continued) No. FRU (L CD) FRU no. CRU ID 3 W ireless LAN/W AN ant enna 04W2223 N 4 Hinges • 3045-C TO , 62x, 63x, 64x, 65x, 66x, 67x, 68x, 69x, 6Ax, 6Bx, 6Cx, 6Dx, 6Fx, 6.
T able 34. Parts list-L CD (continued) No. FRU (L CD) FRU no. CRU ID 6 Integrated camera • 3045-C TO , 62x, 63x, 64x, 65x, 66x, 67x, 68x, 69x, 6Ax, 6Bx, 6Cx, 6Dx, 6Fx, 6Gx, 6Hx, 6Jx, 6Kx, 6Mx, 6Px, .
T able 34. Parts list-L CD (continued) No. FRU (L CD) FRU no. CRU ID 7 LCD cover kit, red, without Wir eless WAN • 3045-C TO • 3048-C TO • 3049-C TO • 3051-C TO • 3053-C TO • 3055-C TO 04W.
T able 35. Parts list-K eyboard (continued) Language FRU no. CRU ID P olish 63Y0068 63Y0140 P ortuguese 63Y0069 63Y0141 Russian 63Y0070 63Y0142 Slovak 63Y0071 63Y0143 Slovenian 63Y0072 63Y0144 Spanish.
P ower cords A ThinkP ad power cord for a specic country or r egion is usually available only in that country or region: T able 39. Parts list–2-pin power cords Country or region FRU no. CRU ID Argentina • Models: C T O, xxY 42T5020 42T5105 Brazil • Models: C T O, xxP 42T5180 42T5183 Canada, U .
Recovery discs Windows XP Pr ofessional (32-bit) DVDs Windows XP P rofessional is preinstalled as the oper ating system in the following models: • 3045-C T O • 3048-C T O • 3049-C T O • 3051-C T O • 3053-C T O • 3055-C T O T able 41.
• 3053-C T O • 3055-C T O T able 42. Parts list-Windows Vista Business (32-bit) recovery DVDs Language P/N CRU ID US English 04T1844 N Windows 7 Home Basic (32-bit) DVDs Windows 7 Home Basic (32-b.
Windows 7 Home P remium (64-bit) DVDs Windows 7 Home Pr emium (64-bit) is pr einstalled as the operating syst em in the following models: • 3045-C T O, 6Sx • 3048-C T O, 24x, 25x, 2Mx • 3049-C T O • 3051-C T O, 5Rx • 3053-C T O, 22x, 23x • 3055-C T O T able 45.
• 3051-C T O, 52x, 5Ax, 5Bx, 5Dx, 5Ex • 3053-C T O • 3055-C T O T able 46. Parts list-Windows 7 Professional (32-bit) recovery DVDs Language P/N CRU ID Indian English 03W7981 Japanese 03W7982 Si.
T able 47. P arts list-Windows 7 Professional (64-bit) recovery DVDs (continued) Language P/N CRU ID Slovak 03W8001 Spanish 03W8002 T r aditional Chinese 03W7987 T urkish 03W8004 US English 03W8006 US.
T able 50. P arts list-Windows 7 Starter (32-bit) recovery DVDs Language P/N CRU ID Arabic 04T1919 Brazilian P ortuguese 04T1920 F rench 04T1922 P ortuguese 04T1923 Russian 04T1924 Spanish 04T1925 T urkish 04T1926 Indian English 04T1921 US English 04T1927 N Common service tools T able 51.
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 corresponding information in the User Guide .
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Part Number: 0A96013 Printed in China (1P) P/N: 0A96013 *0A96013*.
Ein wichtiger Punkt beim Kauf des Geräts IBM THINKPAD X121E (oder sogar vor seinem Kauf) ist das durchlesen seiner Bedienungsanleitung. Dies sollten wir wegen ein paar einfacher Gründe machen:
Wenn Sie IBM THINKPAD X121E noch nicht gekauft haben, ist jetzt ein guter Moment, um sich mit den grundliegenden Daten des Produkts bekannt zu machen. Schauen Sie zuerst die ersten Seiten der Anleitung durch, die Sie oben finden. Dort finden Sie die wichtigsten technischen Daten für IBM THINKPAD X121E - auf diese Weise prüfen Sie, ob das Gerät Ihren Wünschen entspricht. Wenn Sie tiefer in die Benutzeranleitung von IBM THINKPAD X121E reinschauen, lernen Sie alle zugänglichen Produktfunktionen kennen, sowie erhalten Informationen über die Nutzung. Die Informationen, die Sie über IBM THINKPAD X121E erhalten, werden Ihnen bestimmt bei der Kaufentscheidung helfen.
Wenn Sie aber schon IBM THINKPAD X121E besitzen, und noch keine Gelegenheit dazu hatten, die Bedienungsanleitung zu lesen, sollten Sie es aufgrund der oben beschriebenen Gründe machen. Sie erfahren dann, ob Sie die zugänglichen Funktionen richtig genutzt haben, aber auch, ob Sie keine Fehler begangen haben, die den Nutzungszeitraum von IBM THINKPAD X121E verkürzen könnten.
Jedoch ist die eine der wichtigsten Rollen, die eine Bedienungsanleitung für den Nutzer spielt, die Hilfe bei der Lösung von Problemen mit IBM THINKPAD X121E. Sie finden dort fast immer Troubleshooting, also die am häufigsten auftauchenden Störungen und Mängel bei IBM THINKPAD X121E gemeinsam mit Hinweisen bezüglich der Arten ihrer Lösung. Sogar wenn es Ihnen nicht gelingen sollte das Problem alleine zu bewältigen, die Anleitung zeigt Ihnen die weitere Vorgehensweise – den Kontakt zur Kundenberatung oder dem naheliegenden Service.
