Lenovo N20p Chromebook Hardware Maintenance Manual - Lenovo N20p Chromebook
Lenovo N20p Chromebook Manual
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- Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 1
Hardware Maintenance Manual Lenovo N20p Chromebook - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 2
- Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 3
Hardware Maintenance Manual Lenovo N20p Chromebook - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 4
First Edition (June 2014) © Copyright Lenovo 2014. - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 5
. . 1 General safety 1 Electrical safety 1 Safety inspection guide 2 Handling devices that are sensitive to electrostatic discharge 3 Grounding (CRUs) . . 21 All FRUs (CRUs) for Lenovo N20p Chromebook . 21 Lenovo part numbers of replacement FRUs or CRUs 24 Chapter 4. Removing a FRU or - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 6
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information that you need to be familiar with before you service a Lenovo notebook computer. General safety Follow these rules to ensure general be hazardous to your eyes. • After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 8
; Instructions for service technicians from injury. This guide Lenovo features or options not covered by this inspection guide . If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem Manual - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 9
should be the authorized type specified for your computer. Go to: http://www.lenovo.com/serviceparts-lookup c. Insulation must not be frayed or worn. 4. Check as those listed below, to provide protection that meets the specific service requirement. Note: The use of a grounding system to guard against - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 10
section are provided in the following languages: • English • Arabic • Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese DANGER DANGER DANGER DANGER 4 Hardware Maintenance Manual - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 11
DANGER DANGER DANGER DANGER Chapter 1. Safety information 5 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 12
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PERIGO PERIGO PERIGO PERIGO Chapter 1. Safety information 7 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 14
PERIGO PERIGO PERIGO PERIGO DANGER DANGER 8 Hardware Maintenance Manual - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 15
DANGER DANGER DANGER DANGER DANGER Chapter 1. Safety information 9 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 16
DANGER VORSICHT VORSICHT VORSICHT VORSICHT 10 Hardware Maintenance Manual - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 17
VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1. Safety information 11 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 18
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Chapter 1. Safety information 13 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 20
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Chapter 1. Safety information 15 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 22
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Chapter 1. Safety information 17 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 24
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instructions, ensure that you read the following important notes. Important notes: • Only certified trained personnel should service the computer. • Before replacing any FRU, read the entire page on removing and replacing FRUs. • When you replace Before checking problems with the Lenovo 2014 19 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 26
by attachment of a non-supported device • Forgotten computer password be a symptom of unauthorized service or modification. • Check for replace the ac power adapter. • If the voltage is acceptable, do the following: a. Replace the system board. b. If the problem persists, call the Customer Support - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 27
3. Idetifying FRUs (CRUs) All FRUs (CRUs) for Lenovo N20p Chromebook The exploded illustrations help Lenovo service technicians identify FRUs or CRUs that they may need to replace when servicing a customer's computer. Refer to "Lenovo part numbers of replacement FRUs or CRUs" on page 24 if you need - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 28
1 2 4 3 5 8 6 7 9 10 11 12 13 Figure 1. N20p exploded view 22 Hardware Maintenance Manual - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 29
N N N N N N N N N N * * Note: A customer replaceable unit (CRU) is identified by a single asterisk (*) or two asterisks (**) in the single asterisk (*) means that the part is a Self-service CRU; two asterisks (**) means that the part is an Optional-service CRU. A Letter "N" in the CRU ID column - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 30
for the LCD module (continued) 3 Hinge assembly N 4 Camera board N 5 G-sensor board N 6 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 the following tables to order - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 31
Czh-Slk75KeyST1CJMEBlackKeySilverFrame Bulgarian75KeyST1CJMEBlackKeySilverFrame India74KeyST1CJMEBlackKeySilverFrame 3 Upper case Upper Case C N20P W/TP N-3G 4 Touchpad cable TouchPad Cable C N20 5 dc-in connector bracket DC-IN Bracket C N20 6 dc-in connector 25216100 25216101 25216102 25216045 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 32
C N20P MUTTO+AUO 3 Hinge assembly (left and right) Hinge Cover C N20 4 Camera board Hinge C N20P CAM&LCDCable&ANT WIFI 5 G-sensor board Camera C N20 G-Sensor Board C N20P Lenovo part number 5D10G15045 5D10G15030 5CB0G15026 5H50G15014 5C20G15029 5C50G15040 26 Hardware Maintenance Manual - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 33
Table 4. Part numbers of LCD FRUs (continued) 6 LCD base cover LCD Cover C N20P 5CB0G15019 Chapter 3. Idetifying FRUs (CRUs) 27 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 34
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or replacing a FRU, ensure that you observe the following general guidelines: 1. Do not try to service any Lenovo parts numbers in Appendix B "Lenovo part numbers of screws used on N20p Chromebook" on page 47 for replacement screws and order them through the Lenovo CRM system. 7. When replacing - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 36
Step 3. Turn over the Chromebook again and then open the LCD cover. Step 4. Lift the 3 "Part numbers of FRUs (CRUs)" on page 24 to look up the Lenovo part numbers of replacement keyboards. Note: Replacement keyboards are available in different languages and colors. Check the color and language type - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 37
be completely detached. Remove the two screws 1 under the rubbers. Remove the four screws 2 . a a b b b b Figure 7. Remove 6 screws Step 4. Turn over the Chromebook and open the LCD cover. Step 5. Open the touch pad socket 3 and pull out the cable 4 . Chapter 4. Removing a FRU or CRU 31 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 38
Black Black Black Torque 3.7 - 4.0 kgf * cm 3.7 - 4.0 kgf * cm 1.7 - 2.0 kgf * cm Refer to Table 3 "Part numbers of FRUs (CRUs)" on page 24 to look up the Lenovo part numbers of the following replacement parts: Upper case Touch pad cable 32 Hardware Maintenance - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 39
Remove the WLAN & Bluetooth combo module Make sure the following FRUs (CRUs) have been removed: "Remove the keyboard" on page 29 "Remove the upper case" on page 31 Step 1. Disconnect the white and black cables from the WLAN & Bluetooth combo module 1 . a a Figure 10. Disconnect antenna cables Step - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 40
(CRUs)" on page 24 to look up the Lenovo part numbers of replacement WLAN & Bluetooth combo modules. Remove the LCD module the LCD and camera cables Step 2. Release the antenna, LCD, and camera cables out of cable guides. Step 3. Remove the five screws 3 that fix the LCD module to the base cover. cc - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 41
The LCD module is not a FRU. It contains FRUs as its components. Refer to "Disassemble the LCD module" on page 40 if you need to replace a FRU contained in the LCD module. Remove the dc-in connector Make sure the following FRUs (CRUs) have been removed: "Remove the keyboard" on page - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 42
a Figure 16. Unplug the dc-in cable Step 2. Remove the two screws 2 and then remove the metal bracket 3 that fastens the dc-in connector. b b c Figure 17. Remove 2 screws Step 3. Remove the dc-in connector 4 . 36 Hardware Maintenance Manual - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 43
nylon-coated Color Silvery Torque 1.7 - 2.0 kgf * cm Refer to Table 3 "Part numbers of FRUs (CRUs)" on page 24 to look up the Lenovo part numbers of the following replacement parts: dc-in bracket dc-in connector Remove the battery pack "Remove the keyboard" on page 29 "Remove the upper case" on - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 44
to Table 3 "Part numbers of FRUs (CRUs)" on page 24 to look up the Lenovo part numbers of the following replacement parts: Battery pack I/O board cable Remove the speakers Make sure the following FRUs (CRUs) Step 2. Hold the speakers with two hands to remove them 2 . 38 Hardware Maintenance Manual - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 45
I/O board 3 . b c Figure 23. Remove the system board and the I/O board Refer to Table 3 "Part numbers of FRUs (CRUs)" on page 24 to look up the Lenovo part numbers of the following replacement parts: System board I/O board Base cover (with coin-cell battery) Chapter 4. Removing a FRU or CRU 39 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 46
, make sure it has been detached from the base cover. Refer to "Remove the LCD module" on page 34 for instructions. Remove the LCD panel Step 1. Pry and then remove the two hinge covers 1 . a a Figure 24. Pry and the LCD cable 4 and the touch module cable 5 . 40 Hardware Maintenance Manual - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 47
-coated Color Silvery Torque 3.7 - 4.0 kgf * cm Refer to Table 4 "Part numbers of LCD FRUs" on page 26 to look up the Lenovo part numbers of the following replacement parts: Hinge covers LCD panel Remove the G-sensor board Make sure the following FRUs (CRUs) have been removed: "Remove the LCD - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 48
26 to look up the Lenovo part number of the G-sensor from the LCD base cover 4 and release all cables from cable guides. e d d Figure 30. Remove the hinge assembly and the FRUs" on page 26 to look up the Lenovo part numbers of the following replacement parts: Hinge assembly (left and right, cables - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 49
LCD base cover Chapter 4. Removing a FRU or CRU 43 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 50
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Appendix A. Features, controls, and connectors Figure 31. N20p Chromebook features and connectors Table 14. N20p Chromebook features and connectors No. Feature or connector 1 Integrated camera 2 12 Battery status indicator 13 Memory card (SD/MMC) slot © Copyright Lenovo 2014 45 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 52
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B. Lenovo part numbers of screws used on N20p Chromebook Table 15. Part numbers of N20p screws Screw description SCREW N20 M M2 2.0D 2L K 7D SCREW N20 M M 1.98D 3.0L K 4.6D SCREW N20 M2D 3L K 4.5D ZK SCREW N20 M2.5D 3.5L K 5.3D SCREW N20 M M 2D 5L K 4.6D SCREW N20 M2.5D 5.0L K 4.6D SCREW N20 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 54
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LP-23A+LFC-3R+LS-18 VOLEX AU10S3+H03VV-F+VAC5S lux 0038+H03VV-F 0.75/3C+0011 LINETEK LS15+VCTF+LP-53 Lenovo part number 36200602 36200606 36200610 145000593 145000561 145000605 145500000 145000585 145000553 145000525 145500001 145000594 145000562 145000537 145500002 145000600 145000568 145000538 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 56
145000554 145500010 145000596 145000564 145000527 145500011 145000595 145000563 145000526 145500012 145000597 145000565 145000524 145500013 145000598 145000566 145000534 145500014 145000599 145000567 145000528 145500015 50 Hardware Maintenance Manual - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 57
/TW Brazil Israel Malaysia South Africa d Indonesia label e KR KCC label Country or region All All Dimensions 66 x 24 mm 43 x 24 mm United States, Canada, Taiwan Brazil Israel Malaysia South Africa Indonesia Korea 32 x 10 mm 35 x 15 mm 32 x 10 mm 15 x 15 mm 20 x 10 mm 26 x 10 - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 58
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Trademarks Lenovo and the "lenovo" logo are trademarks of Lenovo in the United States, other countries or both: Other company, product, or service names may be trademarks or service marks of others. - Lenovo N20p Chromebook | Hardware Maintenance Manual - Lenovo N20p Chromebook - Page 60
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