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Lenovo Chromebook 100e 2nd Gen MTK Hardware Maintenance Manual
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Lenovo Chromebook 100e 2nd Gen MTK Hardware Maintenance Manual

Lenovo Chromebook 100e 2nd Gen MTK Hardware Maintenance Manual

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Hardware Maintenance Manual
Lenovo 100e/300e Chromebook 2nd Gen MTK

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Summary of Contents for Lenovo Chromebook 100e 2nd Gen MTK

  • Page 1 Hardware Maintenance Manual Lenovo 100e/300e Chromebook 2nd Gen MTK...
  • Page 2 First Edition (March 2019) © Copyright Lenovo 2019. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-...

  • Page 3: Table Of Contents

    Trademarks ....lvii Miscellaneous parts ... Looking up FRU information ..© Copyright Lenovo 2019...
  • Page 4 Hardware Maintenance Manual...

  • Page 5: About This Documentation

    Hereinafter referred to Lenovo 100e Chromebook 2nd 81QB 100e MTK Gen MTK Lenovo 300e Chromebook 2nd 81QC 300e MTK Gen MTK • To improve readability, this manual commonly takes Lenovo 300e Chromebook 2nd Gen MTK as an example. © Copyright Lenovo 2019...
  • Page 6 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Safety Information

    Chapter 1. Safety information This chapter presents the safety information that you need to be familiar with before you service a Lenovo notebook computer. This chapter contains the following topics: “General safety” on page 1 “Electrical safety” on page 1 “Safety inspection guide”...

  • Page 8: Safety Inspection Guide

    Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock.

  • Page 9: 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 10: Grounding Requirements

    • Use a grounded work mat to provide a static-free work surface. The mat is especially useful when handling ESD-sensitive devices. • Select a grounding system, such as those listed below, to provide protection that meets the specific service requirement. Note: The use of a grounding system to guard against ESD damage is desirable but not necessary.
  • Page 11 DANGER DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 Hardware Maintenance Manual...
  • Page 13 PERIGO PERIGO Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO Hardware Maintenance Manual...
  • Page 15 PERIGO DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER VORSICHT Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Hardware Maintenance Manual...
  • Page 25 Chapter 1 Safety information...
  • Page 26 Hardware Maintenance Manual...

  • Page 27: Chapter 2. General Checkout

    The following are not covered under warranty: • LCD panel cracked from the application of excessive force or from being dropped • Scratched (cosmetic) parts • Distortion, deformation, or discoloration of the cosmetic parts © Copyright Lenovo 2019...

  • Page 28: Checking The Ac Power Adapter

    • Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force • Damage caused by liquid spilled into the system • Damage caused by the improper insertion of a personal-computer card (PC card) or the installation of an incompatible card •...

  • Page 29: Chapter 3. Create And Use A Usb Repair Shim

    Step 2. Download the image file of the repair shim from . A Lenovo service http://www.lenovo.com/support credential is needed to download the image file. Attention: Make sure to download the latest version of the image file. A shim created with an earlier version of the image file may cause the repair process to fail.

  • Page 30: Factory Test Items

    If the system board is replaced, you are required to enter the VPD. Note: The VPD is a 20 — character string. Table 1. Combination of the 20 – character VPD Preceding characters Machine type Model number “1S”, 2 digits 7 digits 3 digits 8 digits...
  • Page 31 Table 2. Factory test items (continued) FATP Test The FATP Test is designed to test the individual component to verify its function, such as the display, audio, camera, keyboard, and other components. It is recommended that you run all the FATP Test items. Some test items might require an HDMI monitor or an SD card.
  • Page 32 Hardware Maintenance Manual...

  • Page 33: Chapter 4. Identifying Frus (Crus)

    Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at .

  • Page 34: Major Frus And Crus

    Major FRUs and CRUs Figure 1. Exploded view Note: Depending on the computer model, your computer might look different from the illustration above. Hardware Maintenance Manual...
  • Page 35 Table 3. Major FRUs and CRUs FRU description Self-service CRU Optional-service CRU LCD module Upper case (with keyboard) Touchpad Speakers Base cover System board USB board Battery pack Chapter 4 Identifying FRUs (CRUs)

  • Page 36: Lcd Frus And Crus

    LCD FRUs and CRUs Figure 2. LCD module – exploded view (for 300e Chromebook 2nd Gen MTK) Table 4. LCD FRUs and CRUs (for 300e Chromebook 2nd Gen MTK) FRU description Self-service CRU Optional-service CRU Hinge cover LCD panel Camera assembly Hardware Maintenance Manual...
  • Page 37 Table 4. LCD FRUs and CRUs (for 300e Chromebook 2nd Gen MTK) (continued) Hinges LCD & camera cable LCD base cover Figure 3. LCD module – exploded view (for 100e Chromebook 2nd Gen MTK) Chapter 4 Identifying FRUs (CRUs)

  • Page 38: Miscellaneous Parts

    • Screw M1.6 x L1.5, silver (3) • Screw M2.5 x L6, black (9) ac power adapter Power cord Rubber pack Thermalpad Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to: https://support.lenovo.com/partslookup Hardware Maintenance Manual...

  • Page 39: Chapter 5. Removing A Fru Or Cru

    6. If screws are missing, look up details in “Miscellaneous parts” on page 32 for replacement screws and order them through the Lenovo CRM system. 7. When replacing the base cover, reapply all labels that come with the replacement base cover. If some original labels are not included with the replacement base cover, peal them off from the original base cover and paste them on the replacement base cover.

  • Page 40: Remove The Upper Case (With Keyboard)

    When prompted to log on to the local host, type chronos and press enter. Step 5. Type sudo bash and press enter. Step 6. Type ectool batterycutoff and press enter. Step 7. When the message SUCCESS. The battery has arranged a cut-off and the system should be Step 8.
  • Page 41 Figure 5. Lift the upper case Step 4. Detach the battery connector , and then detach the keyboard and touchpad connectors Attention: Use your fingernail to pull the connector to detach it. Do not pull the cable itself. Refer to “Major FRUs and CRUs” on page 28 to look up details about the following replacement part: Upper case (with keyboard) Chapter 5 Removing a FRU or CRU...

  • Page 42: Remove The Touchpad

    Remove the touchpad Make sure the following FRUs (or CRUs) have been removed. “Remove the upper case (with keyboard)” on page 34 Step 1. Remove the 3 screws. Figure 6. Remove the screws Screw specifications Number of screws M1.6 x 1.5 Step 2.

  • Page 43: Remove The Speakers

    Figure 8. Detach the connector Step 2. Remove the 4 screws. Figure 9. Remove the screws Screw specifications Number of screws M2.0 x 4 Step 3. Remove the battery pack Figure 10. Remove the battery pack Refer to “Major FRUs and CRUs” on page 28 to look up details about the following replacement part: Battery pack Remove the speakers Make sure the following FRUs (CRUs) have been removed.

  • Page 44: Remove The Power Board

    “Remove the upper case (with keyboard)” on page 34 “Remove the battery pack” on page 36 Step 1. Detach the connector from the power board, and then remove the two screws. Figure 11. Detach the connector and remove the screws Screw specifications Number of screws M2.0 x 2.5...

  • Page 45: Remove The System Board

    Figure 13. Remove the cable Step 2. Remove the 4 screws, and then remove the power board. Figure 14. Remove the power board Screw specifications Number of screws M2.0 x 4 Step 3. Remove the power board Figure 15. Remove the power board Refer to “Major FRUs and CRUs”...
  • Page 46 “Remove the battery pack” on page 36 Step 1. Remove the 3 screws, and then open the hinge. Figure 16. Remove the screws Number of screws Screw specifications M2.5 x 5 Step 2. Detach the two connectors , and then remove the cable that connects the power board to the system board.

  • Page 47: Remove The Lcd Module

    Screw specifications Number of screws M2.0 x 4 Step 4. Remove the system board Figure 19. Remove the system board Refer to “Major FRUs and CRUs” on page 28 to look up details about the following replacement parts: System board Remove the LCD module Make sure the following FRUs (CRUs) have been removed.

  • Page 48: Disassemble The Lcd Module (For 300E Mtk)

    Figure 21. Remove the screws Screw specifications Number of screws M2.5 x 5 Step 3. Lift up the LCD module to detach it from the base cover. The LCD module is not a FRU. Instead, it contains FRUs as its components. Refer to “Disassemble the LCD module (for 300e MTK)”...

  • Page 49: Remove The Lcd Panel

    Figure 23. Remove the screws Screw specifications Number of screws M2.0 x 3 Step 3. Remove the hinge cover with a plastic opening tool. Figure 24. Remove the hinge cover Refer to “LCD FRUs and CRUs” on page 30 to look up details about the following replacement parts: hinge cover Remove the LCD panel Make sure the following FRUs (or CRUs) have been removed.

  • Page 50: Remove The Camera Board And The Lcd Cable

    Figure 25. Remove the screws Screw specifications Number of screws M2.0 x 3 Step 2. Remove the hinge rubbers that secure the LCD cable and antenna cables. Figure 26. Remove the hinge rubbers Step 3. Push the LCD panel from top to bottom, and then remove the LCD panel. Figure 27.
  • Page 51 “Remove the LCD module” on page 41 “Remove the hinge cover” on page 42 “Remove the LCD panel” on page 43 Step 1. Turn over the LCD panel, detach the LCD cable , and unplug the G sensor cable Figure 28. Detach the cables Step 2.

  • Page 52: Remove The Hinges

    Figure 31. Remove the camera. Step 5. Remove the LCD cable. Figure 32. Remove the LCD cable. Refer to “Major FRUs and CRUs” on page 28 to look up details about the following replacement part: Camera LCD cable Remove the hinges Make sure the following FRUs (or CRUs) have been removed.

  • Page 53: Disassemble The Lcd Module (For 100E Mtk)

    Figure 33. Remove the screws Screw specifications Number of screws M2 x 3 Step 2. Remove the hinges. Refer to “LCD FRUs and CRUs” on page 30 to look up details about the following replacement parts: Hinges Disassemble the LCD module (for 100e MTK) The LCD module as a whole is not a FRU.
  • Page 54 Figure 34. Pull the inner sides of the LCD bezel Step 2. Remove the 4 screws. Figure 35. Remove the 4 screws Number of screws Screw specifications M2.0 x 3 Step 3. Lift up the LCD panel, and then detach the LCD cable connector. Hardware Maintenance Manual...

  • Page 55: Remove The Camera Board

    Figure 36. Remove the LCD panel Refer to “LCD FRUs and CRUs” on page 30 to look up details about the following replacement parts: LCD bezel LCD module Remove the camera board Make sure the following FRUs (or CRUs) have been removed. “Remove the upper case (with keyboard)”...

  • Page 56: Remove The Hinges And Lcd Cable

    Figure 38. Remove the camera board Refer to “LCD FRUs and CRUs” on page 30 to look up details about the following replacement part: Camera board Remove the hinges and LCD cable Make sure the following FRUs (or CRUs) have been removed. “Remove the upper case (with keyboard)”...
  • Page 57 Figure 40. Remove the hinges Step 3. Remove the LCD cable. Figure 41. Remove the LCD cable Refer to “LCD FRUs and CRUs” on page 30 to look up details about the following replacement parts: Hinges LCD cable LCD cover Chapter 5 Removing a FRU or CRU...
  • Page 58 Hardware Maintenance Manual...

  • Page 59: Appendix A. Features, Controls, And Connectors

    Appendix A. Features, controls, and connectors Figure 42. Lenovo 100e/300e Chromebook 2nd Gen MTK features and connectors Table 7. Lenovo 100e/300e Chromebook 2nd Gen MTK features and connectors Features and connectors Camera Microphone Shortcut keys Screen lock Touchpad dc-in / USB-C connector...
  • Page 60 Hardware Maintenance Manual...

  • Page 61: Appendix B. Label Locations

    US/CA/TW W/L label US/CA 32 mm x 10 mm W/L label Israel India BIS label India 22 mm x 30 mm MCMC label Malaysia 8 mm x 8 mm W/L label South Africa 20 mm x 10 mm © Copyright Lenovo 2019...
  • Page 62 Hardware Maintenance Manual...

  • Page 63: Trademarks

    Trademarks LENOVO and the LENOVO logo are trademarks of Lenovo. The terms HDMI and HDMI High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries. USB-C is a trademark of USB Implementers Forum. All other trademarks are the...

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