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Summary of Contents for Lenovo Chromebook Duet 3
- Page 1 Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
- Page 2 First Edition (January 2023) © Copyright Lenovo 2023.
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Page 3: Table Of Contents
CRU ....25 Trademarks ....xlvii © Copyright Lenovo 2023... -
Page 4: About This Manual
Important: • This manual is intended only for trained service technicians who are familiar with Lenovo products. • Before servicing a Lenovo product, be sure to read all the information under Chapter 1 “Safety information” on page 1. © Copyright Lenovo 2023... -
Page 5: Chapter 1. Safety Information
• Do not work alone under hazardous conditions or near equipment that has hazardous voltages. • Disconnect all power before: – Performing a mechanical inspection – Working near power supplies © Copyright Lenovo 2023... -
Page 6: Safety Inspection Guide
• Explosive hazards, such as a damaged cathode ray tube (CRT) face or a bulging capacitor • Mechanical hazards, such as loose or missing hardware Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual... -
Page 7: Handling Devices That Are Sensitive To Electrostatic Discharge
4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo alterations. 7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage. -
Page 8: Grounding Requirements
• Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese DANGER DANGER DANGER Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual... - Page 9 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
- Page 10 Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
- Page 11 PERIGO PERIGO PERIGO Chapter 1 Safety information...
- Page 12 PERIGO PERIGO PERIGO PERIGO PERIGO Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
- Page 13 DANGER DANGER DANGER DANGER Chapter 1 Safety information...
- Page 14 DANGER DANGER DANGER DANGER VORSICHT Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
- Page 15 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
- Page 16 VORSICHT VORSICHT VORSICHT Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
- Page 17 Chapter 1 Safety information...
- Page 18 Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
- Page 19 Chapter 1 Safety information...
- Page 20 Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
- Page 21 Chapter 1 Safety information...
- Page 22 Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
- Page 23 Chapter 1 Safety information...
- Page 24 Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
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Page 25: Chapter 2. General Checkout
• Scratched (cosmetic) parts • Distortion, deformation, or discoloration of the cosmetic parts • Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force • Damage caused by liquid spilled into the system © Copyright Lenovo 2023... -
Page 26: Cru List
Keyboard* self-service Kickstand* self-service Pen pouch* self-service Lenovo USI Pen 2* self-service USB dongle* self-service * for selected models Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual... -
Page 27: Chapter 3. Identifying Frus (Crus)
Chapter 3. Identifying FRUs (CRUs) Locate FRUs and CRUs The exploded illustrations help Lenovo service technicians identify FRUs or CRUs that they may need to replace when servicing a customer’s computer. Figure 1. Exploded view © Copyright Lenovo 2023... - Page 28 Left I/O board cable Power and volume board Power and volume board cable Rear-facing camera bracket Microphone cables * for selected models Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
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Page 29: Chapter 4. Removing A Fru Or Cru
Chapter 4. Removing a FRU or CRU Service tools The following table lists tools for servicing Lenovo computers. Tools with a cross mark are needed for serving the product models as described by this publication. Prepare them before you service the product. -
Page 30: Remove The Lcd Module
Lift the LCD module. Figure 2. Lift the LCD module Step 3. Remove two screws, and then remove the battery cable bracket. Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual... - Page 31 Figure 3. Remove two screws and the battery cable bracket Screw specifications Number of screws M1.4 × L2 Step 4. Disconnect the battery pack cable and the EDP cable, and then remove the LCD module. Figure 4. Disconnect cables and remove the LCD module Step 5.
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Page 32: Remove The Battery Pack
“Remove the LCD module” on page 26 Step 1. Pull out the removable tapes. Then, remove the battery pack. Figure 6. Remove the battery pack Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual... -
Page 33: Remove The Speakers
Note: Removable tapes are not reusable. Use new removable tapes when the battery pack is reinstalled or replaced. Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Battery pack Removable tape Remove the speakers Make sure the following FRUs (CRUs) have been removed. -
Page 34: Remove The I/O Board Brackets
Step 1. Remove four screws, and then remove the I/O board brackets. Figure 9. Remove four screws and the I/O board brackets Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual... -
Page 35: Remove The I/O Board With Cable
Number of screws M1.4 × L2.5 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts: I/O board bracket Remove the I/O board with cable Make sure the following FRUs (or CRUs) have been removed. -
Page 36: Remove The Pogo Pin Bracket
Make sure the following FRUs (or CRUs) have been removed. “Remove the LCD module” on page 26 Step 1. Remove four screws, and then remove the pogo pin bracket. Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual... -
Page 37: Remove The Heat Sink
Figure 12. Remove four screws and remove pogo pin bracket Screw specifications Number of screws M1.4 × L2.5 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Pogo pin bracket Remove the heat sink Make sure the following FRUs (or CRUs) have been removed. -
Page 38: Remove The Front-Facing Camera
Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Heat sink Remove the front-facing camera Make sure the following FRUs (or CRUs) have been removed. Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual... -
Page 39: Remove The Front-Facing Camera Led Cable
Remove the front-facing camera. Figure 15. Remove the front-facing camera Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Front-facing camera Remove the front-facing camera LED cable Make sure the following FRUs (or CRUs) have been removed. -
Page 40: Remove The Antenna Module
“Remove the front-facing camera LED cable” on page 35 Step 1. Remove the antenna mylar, and then disconnect the antennas from the system board. Figure 17. Disconnect the antennas Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual... -
Page 41: Remove The Microphone Cables
Screw specifications Number of screws M1.4 × L2.5 Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement part: Antenna module Antenna mylar Remove the microphone cables Make sure the following FRUs (or CRUs) have been removed. -
Page 42: Remove The Power And Volume Board And Cable
“Remove the antenna module” on page 36 Step 1. Disconnect and remove the power and volume board cable. Then remove the power and volume board. Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual... -
Page 43: Remove The Rear-Facing Camera And Bracket
Step 2. Remove the power and volume board. Figure 21. Remove the power and volume board Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Power and volume board Power and volume board cable Remove the rear-facing camera and bracket Make sure the following FRUs (or CRUs) have been removed. - Page 44 Number of screws M1.4 × L2.5 Step 2. Disconnect and remove the rear-facing camera. Figure 23. Disconnect and remove the rear-facing camera Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
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Page 45: Remove The System Board
Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Rear-facing camera Rear-facing camera bracket Remove the system board Make sure the following FRUs (or CRUs) have been removed. “Remove the LCD module” on page 26 “Remove the heat sink”... -
Page 46: Remove The Pogo Pin Cable
“Remove the pogo pin bracket” on page 32 Step 1. Remove the pogo pin cable. Figure 26. Remove the pogo pin cable Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual... - Page 47 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement part: Pogo pin cable Chapter 4 Removing a FRU or CRU...
- Page 48 Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
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Page 49: Chapter 5. Label Location
43 mm × 24 mm 32 mm × 10 mm USA/CA label Country label South Africa D-side Label 20 mm × 10 mm TW label 32 mm × 10 mm 22 mm × 30 mm New BIS label © Copyright Lenovo 2023... - Page 50 Lenovo Chromebook Duet 3, IdeaPad Duet 3 Chromebook (11″, 7), and Lenovo Duet Chromebook Education Edition Hardware Maintenance Manual...
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Page 51: Trademarks
Trademarks LENOVO, the LENOVO logo, and IdeaPad are trademarks of Lenovo. All other trademarks are the property of their respective owners. © 2023 Lenovo.
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