Safety and General Information Guide - Notebook
Page 20
... you hear the CD or DVD click into the center pivot of an optical drive before moving it by the display. • Use a quality carrying case that the battery is in your car, place it on the back seat to avoid being insolated. • Carry the AC adapter and power cord...
... you hear the CD or DVD click into the center pivot of an optical drive before moving it by the display. • Use a quality carrying case that the battery is in your car, place it on the back seat to avoid being insolated. • Carry the AC adapter and power cord...
Safety and General Information Guide - Notebook
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If possible, be near your computer when you call in case the technical assistance representative needs to http://support.lenovo.com. When calling for technical assistance, please have downloaded the most current drivers and system updates, and recorded information before... your proof of operation, go to help and service Refer to your Lenovo hardware warranty for a full explanation of Lenovo warranty terms. Be sure to obtain warranty service. If the number for your Lenovo reseller or Lenovo marketing representative. 23 Getting help you have the following information available: &#...
If possible, be near your computer when you call in case the technical assistance representative needs to http://support.lenovo.com. When calling for technical assistance, please have downloaded the most current drivers and system updates, and recorded information before... your proof of operation, go to help and service Refer to your Lenovo hardware warranty for a full explanation of Lenovo warranty terms. Be sure to obtain warranty service. If the number for your Lenovo reseller or Lenovo marketing representative. 23 Getting help you have the following information available: &#...
(English) User Guide - Lenovo N21 Chromebook
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...be safe and effective. However, do not use your notebook personal computer. Carry your computer carefully. • Use a quality carrying case that provides adequate cushioning and protection. • Do not pack your computer in a tightly packed suitcase or bag. • Before ...hissing. Follow and retain all information included with any question about the condition of danger. Handle your purchase agreement or the Lenovo® Limited Warranty. Important safety information This information can become damaged due to diagnose the situation yourself. Customer safety is ...
...be safe and effective. However, do not use your notebook personal computer. Carry your computer carefully. • Use a quality carrying case that provides adequate cushioning and protection. • Do not pack your computer in a tightly packed suitcase or bag. • Before ...hissing. Follow and retain all information included with any question about the condition of danger. Handle your purchase agreement or the Lenovo® Limited Warranty. Important safety information This information can become damaged due to diagnose the situation yourself. Customer safety is ...
(English) User Guide - Lenovo N21 Chromebook
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... on these devices. Click the settings button ( ) in the lower right corner. © Copyright Lenovo 2014 5 Step 1. Select unused files and then click the delete button ( ) in the upper ...: http://drive.google.com. Note: A storage space may need to delete unused files to a Chromebook is available for better management of files. Step 3. Google Drive provides a convenient way of various ... only view and edit files in a folder named Downloads. Step 2. Delete unused files In some cases, you to save files of sharing files between devices. On the left pane, select a storage ...
... on these devices. Click the settings button ( ) in the lower right corner. © Copyright Lenovo 2014 5 Step 1. Select unused files and then click the delete button ( ) in the upper ...: http://drive.google.com. Note: A storage space may need to delete unused files to a Chromebook is available for better management of files. Step 3. Google Drive provides a convenient way of various ... only view and edit files in a folder named Downloads. Step 2. Delete unused files In some cases, you to save files of sharing files between devices. On the left pane, select a storage ...
Hardware Maintenance Manual - Lenovo N21 Chromebook
Page 5
.... . 4 Chapter 2. Idetifying FRUs (CRUs) . . 21 All FRUs (CRUs) for Lenovo N21 Chromebook . . 21 Lenovo part numbers of screws used on N21 Chromebook . . 49 Appendix D. Removing a FRU or CRU . 27 General guidelines 27 Remove the upper case and the battery. . . . . 27 Remove the speakers 31 Remove the I/O board ...cable 40 Remove the hinges and the WLAN antennas . 42 Appendix A. Label locations. . . . . . 53 Trademarks lv © Copyright Lenovo 2015 iii Safety information . . . . . 1 General safety 1 Electrical safety 1 Safety inspection guide 2 Handling devices that are sensitive to...
.... . 4 Chapter 2. Idetifying FRUs (CRUs) . . 21 All FRUs (CRUs) for Lenovo N21 Chromebook . . 21 Lenovo part numbers of screws used on N21 Chromebook . . 49 Appendix D. Removing a FRU or CRU . 27 General guidelines 27 Remove the upper case and the battery. . . . . 27 Remove the speakers 31 Remove the I/O board ...cable 40 Remove the hinges and the WLAN antennas . 42 Appendix A. Label locations. . . . . . 53 Trademarks lv © Copyright Lenovo 2015 iii Safety information . . . . . 1 General safety 1 Electrical safety 1 Safety inspection guide 2 Handling devices that are sensitive to...
Hardware Maintenance Manual - Lenovo N21 Chromebook
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... - Attention: Metal objects are good electrical conductors. • Wear safety glasses when you are servicing the machine. • Keep your tool case away from the end. • Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for you attempt to be trapped in...operate the switch or unplug the power cord quickly. • Do not work alone under hazardous conditions or near power supplies © Copyright Lenovo 2015 1 Working near equipment that is worn or defective. • Reinstall all personnel, while you can be familiar with a non-conductive ...
... - Attention: Metal objects are good electrical conductors. • Wear safety glasses when you are servicing the machine. • Keep your tool case away from the end. • Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for you attempt to be trapped in...operate the switch or unplug the power cord quickly. • Do not work alone under hazardous conditions or near power supplies © Copyright Lenovo 2015 1 Working near equipment that is worn or defective. • Reinstall all personnel, while you can be familiar with a non-conductive ...
Hardware Maintenance Manual - Lenovo N21 Chromebook
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3 7 10 11 Figure 1. FRU (CRU) categories No. FRU (CRU) category 1 LCD module 2 Foot rubber pack 3 Upper case 4 Battery pack 5 Thermal module 6 System board 22 Hardware Maintenance Manual 1 2 4 5 6 8 9 CRU ID N N N N N N N21 exploded view Table 1.
3 7 10 11 Figure 1. FRU (CRU) categories No. FRU (CRU) category 1 LCD module 2 Foot rubber pack 3 Upper case 4 Battery pack 5 Thermal module 6 System board 22 Hardware Maintenance Manual 1 2 4 5 6 8 9 CRU ID N N N N N N N21 exploded view Table 1.
Hardware Maintenance Manual - Lenovo N21 Chromebook
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Chapter 3. Idetifying FRUs (CRUs) 23 FRU (CRU) categories (continued) 7 Speakers N 8 WLAN & Bluetooth combo module N 9 I/O board N 10 DC-in cable N 11 Lower case N ac power adapter * Power cord * Note: A customer replaceable unit (CRU) is identified by a single asterisk (*) or two asterisks (**) in the CRU ID column means that the part is not a CRU. A single asterisk (*) means that the part is a Self-service CRU; A Letter "N" in the CRU ID column. two asterisks (**) means that the part is an Optional-service CRU. Table 1.
Chapter 3. Idetifying FRUs (CRUs) 23 FRU (CRU) categories (continued) 7 Speakers N 8 WLAN & Bluetooth combo module N 9 I/O board N 10 DC-in cable N 11 Lower case N ac power adapter * Power cord * Note: A customer replaceable unit (CRU) is identified by a single asterisk (*) or two asterisks (**) in the CRU ID column means that the part is not a CRU. A single asterisk (*) means that the part is a Self-service CRU; A Letter "N" in the CRU ID column. two asterisks (**) means that the part is an Optional-service CRU. Table 1.
Hardware Maintenance Manual - Lenovo N21 Chromebook
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... for the LCD module (continued) 7 WLAN antennas N 8 LCD base cover N Lenovo part numbers of replacement FRUs or CRUs When servicing a customer's computer, Lenovo service technicians may use part numbers listed in cable I/O Board Q N21 W/Cable 11 Lower case DC/IN Cable Q N21 Lower Case Q N21 W/Root Rubber Lenovo part number 5CB0H70355 5CB0G15038 5B10H33230 5H40H70348 5B20H70345 5B20H70352 5SB0H70351 20200552...
... for the LCD module (continued) 7 WLAN antennas N 8 LCD base cover N Lenovo part numbers of replacement FRUs or CRUs When servicing a customer's computer, Lenovo service technicians may use part numbers listed in cable I/O Board Q N21 W/Cable 11 Lower case DC/IN Cable Q N21 Lower Case Q N21 W/Root Rubber Lenovo part number 5CB0H70355 5CB0G15038 5B10H33230 5H40H70348 5B20H70345 5B20H70352 5SB0H70351 20200552...
Hardware Maintenance Manual - Lenovo N21 Chromebook
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...are not included with one hand or by ESD. Begin by the arrow in Appendix C "Lenovo part numbers of screws used on N21 Chromebook" on the back side of each FRU replacement procedure. When replacing a FRU, carefully retain ...After replacing a FRU, do not turn on the replacement base cover. Any such FRUs are missing, look up the Lenovo parts numbers in the illustration. 5. Follow the correct sequence in square callouts. 4. DANGER Before removing any computer unless you...you have ensured that have been trained and certified. Remove the upper case and the battery Step 1.
...are not included with one hand or by ESD. Begin by the arrow in Appendix C "Lenovo part numbers of screws used on N21 Chromebook" on the back side of each FRU replacement procedure. When replacing a FRU, carefully retain ...After replacing a FRU, do not turn on the replacement base cover. Any such FRUs are missing, look up the Lenovo parts numbers in the illustration. 5. Follow the correct sequence in square callouts. 4. DANGER Before removing any computer unless you...you have ensured that have been trained and certified. Remove the upper case and the battery Step 1.
Hardware Maintenance Manual - Lenovo N21 Chromebook
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Pry rubbers out of recesses Note: Each recess is marked with a number, please make sure that all rubbers are put in the right recesses when installing. e e e e e e e e e e Figure 4. Turn over the Chromebook and open the LCD cover. Use a pry bar to slide through the grooves between the upper case and the base cover 6 , and then slowly lift the upper case until the keyboard socket appears 7 . 28 Hardware Maintenance Manual Remove the ten screws 5 . Remove 10 screws Step 3. Step 2. c b d a Figure 3. Step 4.
Pry rubbers out of recesses Note: Each recess is marked with a number, please make sure that all rubbers are put in the right recesses when installing. e e e e e e e e e e Figure 4. Turn over the Chromebook and open the LCD cover. Use a pry bar to slide through the grooves between the upper case and the base cover 6 , and then slowly lift the upper case until the keyboard socket appears 7 . 28 Hardware Maintenance Manual Remove the ten screws 5 . Remove 10 screws Step 3. Step 2. c b d a Figure 3. Step 4.
Hardware Maintenance Manual - Lenovo N21 Chromebook
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Lift the upper case Step 5. Step 7. Chapter 4. Note: The Chromebook will be powered on automatically when LCD cover is unplugged before doing the following operations. Therefore, please make sure that the battery cable is open. Removing a FRU or CRU 29 Detach the touchpad cable 9 . Unplug the battery cable 8 . Open the keyboard socket 10 , pull out the keyboard cable 11 , and then remove the upper case in the direction shown by arrow 12 . g f Figure 5. h Figure 6. Unplug the battery cable Step 6.
Lift the upper case Step 5. Step 7. Chapter 4. Note: The Chromebook will be powered on automatically when LCD cover is unplugged before doing the following operations. Therefore, please make sure that the battery cable is open. Removing a FRU or CRU 29 Detach the touchpad cable 9 . Unplug the battery cable 8 . Open the keyboard socket 10 , pull out the keyboard cable 11 , and then remove the upper case in the direction shown by arrow 12 . g f Figure 5. h Figure 6. Unplug the battery cable Step 6.
Hardware Maintenance Manual - Lenovo N21 Chromebook
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...shown by arrow 14 . Remove the battery Table 5. Screw specifications - Detach the touchpad cable and the keyboard cable Step 8. m m m n Figure 8. removing the upper case and the battery Screw label 5 13 Specifications M2 × 4.5mm, flat-head, nylon-coated M2 × 3mm, flat-head, nylon-coated Color Black Black Torque... 1.85 +/- 0.15kgf-cm 1.85 +/- 0.15kgf-cm Refer to Table 3 "Part numbers for FRUs (CRUs)" on page 25 to look up the Lenovo part numbers of the following replacement parts: Upper case Foot rubber pack battery pack 30 Hardware Maintenance Manual
...shown by arrow 14 . Remove the battery Table 5. Screw specifications - Detach the touchpad cable and the keyboard cable Step 8. m m m n Figure 8. removing the upper case and the battery Screw label 5 13 Specifications M2 × 4.5mm, flat-head, nylon-coated M2 × 3mm, flat-head, nylon-coated Color Black Black Torque... 1.85 +/- 0.15kgf-cm 1.85 +/- 0.15kgf-cm Refer to Table 3 "Part numbers for FRUs (CRUs)" on page 25 to look up the Lenovo part numbers of the following replacement parts: Upper case Foot rubber pack battery pack 30 Hardware Maintenance Manual
