Safety and General Information Guide - Notebook
Page 8
... present a safety hazard. The power cords shall be H05VV-F, 3G, 0.75 mm2, or better. Never wrap a power cord around a power adapter or other cables so that can stress the cord in ways that they will not be used with this product only. Always route power cords...manufacturer. You must closely follow all instructions when installing or replacing parts. Replacement parts approved for use with any other object. Lenovo provides documentation with an AC power cord, always make sure that the power is appropriate for customers to let the computer cool before opening the cover....
... present a safety hazard. The power cords shall be H05VV-F, 3G, 0.75 mm2, or better. Never wrap a power cord around a power adapter or other cables so that can stress the cord in ways that they will not be used with this product only. Always route power cords...manufacturer. You must closely follow all instructions when installing or replacing parts. Replacement parts approved for use with any other object. Lenovo provides documentation with an AC power cord, always make sure that the power is appropriate for customers to let the computer cool before opening the cover....
Safety and General Information Guide - Notebook
Page 9
... connect power cords and signal cables in the correct order and ensure that shows corrosion at the ac input pins or shows signs of overheating (such as deformed plastic) at the ac input or anywhere on either end show signs of the product. If power strips are cleaned with ...computer equipment appears to be damaged or corroded, do not leave your power cord or power adapter near sinks, tubs, toilets, or on a power adapter, which can cause a short circuit, particularly if the power cord or power adapter has been stressed by a qualified electrician. Do not use with your computer, data, ...
... connect power cords and signal cables in the correct order and ensure that shows corrosion at the ac input pins or shows signs of overheating (such as deformed plastic) at the ac input or anywhere on either end show signs of the product. If power strips are cleaned with ...computer equipment appears to be damaged or corroded, do not leave your power cord or power adapter near sinks, tubs, toilets, or on a power adapter, which can cause a short circuit, particularly if the power cord or power adapter has been stressed by a qualified electrician. Do not use with your computer, data, ...
Safety and General Information Guide - Notebook
Page 13
...The amount of overheating. • Airflow temperatures into the computer should not exceed 35°C (95°F). 8 Never use the AC adapter to use the keyboard, avoid keeping your computer, it . More frequent cleanings might inadvertently become hot. These features might be careful ...Regularly inspect the outside of system activity and the battery charge level. Important safety information ■ Heat and product ventilation Computers, AC adapters, and many accessories can generate a significant amount of heat due to an electrical outlet and your palms on the palm rest for...
...The amount of overheating. • Airflow temperatures into the computer should not exceed 35°C (95°F). 8 Never use the AC adapter to use the keyboard, avoid keeping your computer, it . More frequent cleanings might inadvertently become hot. These features might be careful ...Regularly inspect the outside of system activity and the battery charge level. Important safety information ■ Heat and product ventilation Computers, AC adapters, and many accessories can generate a significant amount of heat due to an electrical outlet and your palms on the palm rest for...
Safety and General Information Guide - Notebook
Page 20
... the LCD well. • When you leave the computer in your car, place it on the back seat to avoid being insolated. • Carry the AC adapter and power cord with the computer. ■ Handling storage media and drives properly • If your computer comes with an optical drive, do not touch...
... the LCD well. • When you leave the computer in your car, place it on the back seat to avoid being insolated. • Carry the AC adapter and power cord with the computer. ■ Handling storage media and drives properly • If your computer comes with an optical drive, do not touch...
Safety and General Information Guide - Notebook
Page 23
... information and upgrades. • Only an authorized Lenovo repair technician should disassemble and repair your computer. • Do not modify or tape the latches to keep the display open or closed. • Take care not to or from your computer over while the AC adapter is disposed of the battery, comply with local...
... information and upgrades. • Only an authorized Lenovo repair technician should disassemble and repair your computer. • Do not modify or tape the latches to keep the display open or closed. • Take care not to or from your computer over while the AC adapter is disposed of the battery, comply with local...
(English) User Guide - Lenovo N21 Chromebook
Page 7
... become hot. When your computer is turned on the amount of system activity and the level of charge in contact with the operation of an ac power adapter, a mouse, a keyboard, a printer, or any extended time. • Periodically take hands from using the keyboard by your body. Extended contact with a hot section of... continue to get the most use it generates heat. Failure to do so might lead to discomfort or injury, or cause your computer. © Copyright Lenovo 2014 v
... become hot. When your computer is turned on the amount of system activity and the level of charge in contact with the operation of an ac power adapter, a mouse, a keyboard, a printer, or any extended time. • Periodically take hands from using the keyboard by your body. Extended contact with a hot section of... continue to get the most use it generates heat. Failure to do so might lead to discomfort or injury, or cause your computer. © Copyright Lenovo 2014 v
(English) User Guide - Lenovo N21 Chromebook
Page 10
... crimp. Always route power cords so that they will not be H05VV-F, 3G, 0.75 mm2, or better. Protect power cords and power adapters from liquids. Never overload these devices. Consult an electrician for more information if you cannot insert the plug into the outlet, contact an electrician...that enables this safety feature by misuse. Do not use any power adapter that all power cord connectors are used accordingly. If the plug is replaced by a qualified electrician. Ensure that shows corrosion at the ac input pins or shows signs of overheating (such as deformed plastic) at...
... crimp. Always route power cords so that they will not be H05VV-F, 3G, 0.75 mm2, or better. Protect power cords and power adapters from liquids. Never overload these devices. Consult an electrician for more information if you cannot insert the plug into the outlet, contact an electrician...that enables this safety feature by misuse. Do not use any power adapter that all power cord connectors are used accordingly. If the plug is replaced by a qualified electrician. Ensure that shows corrosion at the ac input pins or shows signs of overheating (such as deformed plastic) at...
(English) User Guide - Lenovo N21 Chromebook
Page 13
...sinks are charging. Your computer generates some other parts may apply, See www.dtsc.ca.gov/hazardouswaste/perchlorate Heat and product ventilation DANGER Computers, ac power adapters, and many accessories can generate a significant amount of heat due to warm your palms on a bed, sofa, carpet, or other part of...lithium coin cell batteries may cause a skin burn. Notebook computers can generate heat when turned on the amount of overheating. © Copyright Lenovo 2014 xi Never use the keyboard, avoid keeping your body. Periodically take breaks from the palm rest;
...sinks are charging. Your computer generates some other parts may apply, See www.dtsc.ca.gov/hazardouswaste/perchlorate Heat and product ventilation DANGER Computers, ac power adapters, and many accessories can generate a significant amount of heat due to warm your palms on a bed, sofa, carpet, or other part of...lithium coin cell batteries may cause a skin burn. Notebook computers can generate heat when turned on the amount of overheating. © Copyright Lenovo 2014 xi Never use the keyboard, avoid keeping your body. Periodically take breaks from the palm rest;
(English) User Guide - Lenovo N21 Chromebook
Page 27
... Power cord ac power adapter Types Self-service Self-service Publication containing instructions Safety, warranty, and setup guide Safety, warranty, and setup guide Note: Safety, warranty, and setup guide is replaced by the customer in order to the customer. There are responsible for them. CRUs for Lenovo N21 Chromebook This section lists CRUs for Lenovo N21 Chromebook and...
... Power cord ac power adapter Types Self-service Self-service Publication containing instructions Safety, warranty, and setup guide Safety, warranty, and setup guide Note: Safety, warranty, and setup guide is replaced by the customer in order to the customer. There are responsible for them. CRUs for Lenovo N21 Chromebook This section lists CRUs for Lenovo N21 Chromebook and...
(English) User Guide - Lenovo N21 Chromebook
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... Size Resolutions Backlight type Memory Type/speed Capacity Expandable Storage Type Form factor Capacity Battery pack Type Cells and capacity ac adapter Input Output Power I/O ports Video/audio Audio USB Memory card Lenovo N21 Chromebook 80MG 300.4 mm x 212 mm x 22.4 mm 1.29 Kg Intel Baytrail-M 1280 x 720 pixels 11.6 inch 1366 ...x 768 pixels LED DDR3L 2 GB/4 GB No eMMC eMMC 16 GB Lithium-ion 3 cells, 36.63 Wh 100 - 240 V ac, 50 - 60 Hz 20V dc ...
... Size Resolutions Backlight type Memory Type/speed Capacity Expandable Storage Type Form factor Capacity Battery pack Type Cells and capacity ac adapter Input Output Power I/O ports Video/audio Audio USB Memory card Lenovo N21 Chromebook 80MG 300.4 mm x 212 mm x 22.4 mm 1.29 Kg Intel Baytrail-M 1280 x 720 pixels 11.6 inch 1366 ...x 768 pixels LED DDR3L 2 GB/4 GB No eMMC eMMC 16 GB Lithium-ion 3 cells, 36.63 Wh 100 - 240 V ac, 50 - 60 Hz 20V dc ...
(English) User Guide - Lenovo N21 Chromebook
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The battery is being charged.. The battery is fully charged with the ac power adapter plugged in. Indicator Camera Power and battery Status Solid blue Off Solid green Solid orange Blinking orange Off Meaning The camera is unplugged.. 14 User Guide A charging-related error occurs. The ac power adapter is on. The camera is off.
The battery is being charged.. The battery is fully charged with the ac power adapter plugged in. Indicator Camera Power and battery Status Solid blue Off Solid green Solid orange Blinking orange Off Meaning The camera is unplugged.. 14 User Guide A charging-related error occurs. The ac power adapter is on. The camera is off.
Hardware Maintenance Manual - Lenovo N21 Chromebook
Page 5
... numbers of replacement FRUs or CRUs 25 Chapter 4. Idetifying FRUs (CRUs) . . 21 All FRUs (CRUs) for Lenovo N21 Chromebook . . 21 Lenovo part numbers of ac adapters and power cords . . . . 51 Appendix E. Lenovo part numbers of screws used on N21 Chromebook . . 49 Appendix D. General checkout . . . . . 19 What to electrostatic discharge 3 Grounding requirements 4 Safety notices (multilingual translations) . . . . . 4 Chapter 2. Label locations. . . . . . 53...
... numbers of replacement FRUs or CRUs 25 Chapter 4. Idetifying FRUs (CRUs) . . 21 All FRUs (CRUs) for Lenovo N21 Chromebook . . 21 Lenovo part numbers of ac adapters and power cords . . . . 51 Appendix E. Lenovo part numbers of screws used on N21 Chromebook . . 49 Appendix D. General checkout . . . . . 19 What to electrostatic discharge 3 Grounding requirements 4 Safety notices (multilingual translations) . . . . . 4 Chapter 2. Label locations. . . . . . 53...
Hardware Maintenance Manual - Lenovo N21 Chromebook
Page 26
...making the computer unusable) • Sticky keys caused by spilling a liquid onto the keyboard • Use of an incorrect ac power adapter on laptop products The following symptoms might indicate damage caused by non-warranted activities: • Missing parts might be a symptom ...of unauthorized service or modification. • Check for correct continuity and installation. Checking the ac power adapter If the computer fails only when the ac power adapter is acceptable, do the following table. 3 2 1 (20V) Pin Voltage (V dc) 1 +20 2 0 3 Ground...
...making the computer unusable) • Sticky keys caused by spilling a liquid onto the keyboard • Use of an incorrect ac power adapter on laptop products The following symptoms might indicate damage caused by non-warranted activities: • Missing parts might be a symptom ...of unauthorized service or modification. • Check for correct continuity and installation. Checking the ac power adapter If the computer fails only when the ac power adapter is acceptable, do the following table. 3 2 1 (20V) Pin Voltage (V dc) 1 +20 2 0 3 Ground...
Hardware Maintenance Manual - Lenovo N21 Chromebook
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two asterisks (**) means that the part is an Optional-service CRU. Idetifying FRUs (CRUs) 23 A single asterisk (*) means that the part is a Self-service CRU; A Letter "N" in the CRU ID column means that the part is identified by a single asterisk (*) or two asterisks (**) in cable N 11 Lower case N ac power adapter * Power cord * Note: A customer replaceable unit (CRU) is not a CRU. Chapter 3. Table 1. FRU (CRU) categories (continued) 7 Speakers N 8 WLAN & Bluetooth combo module N 9 I/O board N 10 DC-in the CRU ID column.
two asterisks (**) means that the part is an Optional-service CRU. Idetifying FRUs (CRUs) 23 A single asterisk (*) means that the part is a Self-service CRU; A Letter "N" in the CRU ID column means that the part is identified by a single asterisk (*) or two asterisks (**) in cable N 11 Lower case N ac power adapter * Power cord * Note: A customer replaceable unit (CRU) is not a CRU. Chapter 3. Table 1. FRU (CRU) categories (continued) 7 Speakers N 8 WLAN & Bluetooth combo module N 9 I/O board N 10 DC-in the CRU ID column.
Hardware Maintenance Manual - Lenovo N21 Chromebook
Page 31
... Thermal Module Q N21 W/FAN MB Q N21 N2840 2G 7 Speakers MB Q N21 N2840 4G 8 WLAN & Bluetooth combo module Speaker Q N21 L+R Intel 7260 2x2AC+BT PCIE M.2 WLAN V2 Ltn BCM4356 2x2AC+BT4.0 PCIE M.2 WLAN 9 I/O board Fxn BCM4356 2x2AC+BT4.0 PCIE M.2 WLAN 10 DC-in the following tables to look up the Lenovo part numbers of ac adapters and power...
... Thermal Module Q N21 W/FAN MB Q N21 N2840 2G 7 Speakers MB Q N21 N2840 4G 8 WLAN & Bluetooth combo module Speaker Q N21 L+R Intel 7260 2x2AC+BT PCIE M.2 WLAN V2 Ltn BCM4356 2x2AC+BT4.0 PCIE M.2 WLAN 9 I/O board Fxn BCM4356 2x2AC+BT4.0 PCIE M.2 WLAN 10 DC-in the following tables to look up the Lenovo part numbers of ac adapters and power...
Hardware Maintenance Manual - Lenovo N21 Chromebook
Page 51
N21 Chromebook features and connectors No. Feature or connector 1 Swivel camera 2 Microphone hole 3 Handle bar 4 Shortcut keys 5 Touch pad 6 AC power adapter 7 DC-in indicator 8 HDMI connector 9 USB 3.0 connector 10 Memory card (SD/MMC) slot 11 Combo audio jack 12 Speakers 13 Kensington lock slot 14 USB 2.0 connector 15 Power button © Copyright Lenovo 2015 45 Features, controls, and connectors Figure 35. N21 Chromebook features and connectors Table 13. Appendix A.
N21 Chromebook features and connectors No. Feature or connector 1 Swivel camera 2 Microphone hole 3 Handle bar 4 Shortcut keys 5 Touch pad 6 AC power adapter 7 DC-in indicator 8 HDMI connector 9 USB 3.0 connector 10 Memory card (SD/MMC) slot 11 Combo audio jack 12 Speakers 13 Kensington lock slot 14 USB 2.0 connector 15 Power button © Copyright Lenovo 2015 45 Features, controls, and connectors Figure 35. N21 Chromebook features and connectors Table 13. Appendix A.
Safety, Warranty, and Setup Guide - Lenovo N21 Chromebook
Page 1
... - M: Start the file manager Ctrl - for detailed product information: http://support.lenovo.com Chromebook Power cord AC power adapter Publications Note: The plug of keyboard shortcuts, press Ctrl - However, forcing the ...AC power connector DC-in indicator HDMI connector USB 3.0 connector Memory card (SD/MMC) slot Combo audio jack Speakers Kensington lock slot*2 USB 2.0 connector *1 Attention: T he camera panel can purchase a security cable lock that all safety precautions in with your Chromebook computer. Safety, Warranty, and Setup Guide Lenovo N21 Chromebook...
... - M: Start the file manager Ctrl - for detailed product information: http://support.lenovo.com Chromebook Power cord AC power adapter Publications Note: The plug of keyboard shortcuts, press Ctrl - However, forcing the ...AC power connector DC-in indicator HDMI connector USB 3.0 connector Memory card (SD/MMC) slot Combo audio jack Speakers Kensington lock slot*2 USB 2.0 connector *1 Attention: T he camera panel can purchase a security cable lock that all safety precautions in with your Chromebook computer. Safety, Warranty, and Setup Guide Lenovo N21 Chromebook...