This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-Lenovo features or options not covered by this inspection guide.
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.
Grounding requirements Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician. Safety notices (multilingual translations) The safety notices in this section are provided in the following languages: •...
• Check for obvious damage to a hard disk drive. If the spindle of a hard disk drive becomes noisy, the hard disk drive might have been dropped or subject to excessive force. CRU list Table 1. Model: ThinkBook 14s Yoga ITL (MT: 20WE) Type ac power adapter...
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. ThinkBook 14s Yoga ITL exploded view Table 2. FRU (CRU) categories...
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Fingerprint board I/O board with cable I/O bracket (right) CMOS battery Lenovo Smart Pen charger cable Lenovo Smart Pen holder Lenovo Smart Pen Solid-state drive (SSD) bracket Note: The SSD bracket is used to lock the screw for the 2242 SSD.
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Figure 2. ThinkBook 14s Yoga ITL LCD unit - exploded view Table 3. FRU categories for the LCD unit FRU (CRU) category Microphone rubbers Camera privacy shutter Camera LCD module Strip cover Removable tape Chapter 3 Identifying FRUs (CRUs)
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Table 3. FRU categories for the LCD unit (continued) LCD cover Rubber hinges Hinges EDP cable Sensor board with cable Hardware Maintenance Manual...
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.
Remove the Lenovo Smart Pen Step 1. Remove the Lenovo Smart Pen. Figure 3. Remove the Lenovo Smart Pen Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Lenovo Smart Pen Remove the lower case Make sure the computer has been shut down before servicing the computer and the following FRUs (or CRUs) have been removed.
Step 3. Pry up the latches and then remove the lower case. Figure 5. Pry up the latches and then remove the lower case Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Lower case Remove the battery pack Make sure the following FRUs (or CRUs) have been removed.
Screw specifications Number of screws M2 x L4.0 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Battery pack Remove the solid-state drive (SSD) Make sure the following FRUs (or CRUs) have been removed.
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Figure 9. Remove one screw and separate the SSD from the SSD bracket Screw specifications Number of screws M2.0 x L2.0 Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: SSD bracket Chapter 4...
Remove the Wi-Fi card Make sure the following FRUs (or CRUs) have been removed. “Remove the Lenovo Smart Pen” on page 28 “Remove the lower case” on page 28 Step 1. Disconnect the battery pack cable from the system board.
Screw specifications Number of screws M2 x L2.0 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Heat sink Remove the fan Make sure the following FRUs (or CRUs) have been removed. “Remove the Lenovo Smart Pen” on page 28 “Remove the lower case”...
Number of screws M2 x L4.0 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Remove the memory module Make sure the following FRUs (CRUs) have been removed. “Remove the Lenovo Smart Pen” on page 28 “Remove the lower case”...
Figure 15. Remove the memory module Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: Memory module Memory module shielding Remove the I/O bracket (left) Make sure the following FRUs (or CRUs) has been removed.
Figure 17. Remove four screws and then remove the left I/O bracket Screw specifications Number of screws M2 x L4.0 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: I/O bracket (left) Remove the I/O board bracket (right) Make sure the following FRUs (or CRUs) have been removed.
Screw specifications Number of screws M2 x L4.0 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: I/O bracket (right) Remove the CMOS battery Make sure the following FRUs (or CRUs) has been removed.
Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable. Step 2. Remove two screws and then remove the Lenovo Smart Pen holder. Figure 21. Remove two screws and then remove the Lenovo Smart Pen holder Screw specifications Number of screws M1.6 x L3.0...
Figure 22. Disconnect the pen holder cable and the fingerprint board cable from the I/O board, and disconnect the I/O board cable from the system board. Then, remove the I/O board with cable. Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: I/O board with cable Remove the speakers Make sure the following FRUs (CRUs) have been removed.
“Remove the I/O board with cable” on page 39 Step 1. Peel off the tape and then remove the Lenovo Smart Pen charger cable. Figure 24. Peel off the tape and then remove the Lenovo Smart Pen charger cable Hardware Maintenance Manual...
Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Lenovo Smart Pen charger cable Remove the fingerprint board Make sure the following FRUs (CRUs) have been removed. “Remove the Lenovo Smart Pen” on page 28 “Remove the lower case”...
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“Remove the heat sink” on page 33 “Remove the fan” on page 33 “Remove the memory module” on page 34 “Remove the I/O bracket (left)” on page 35 Step 1. Peel off the tapes. Figure 26. Peel off the tapes Step 2.
Figure 28. Remove one screw and then remove the system board Screw specifications Number of screws M1.98 x L3.0 Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: System board Remove the LCD unit Make sure the following FRUs (CRUs) have been removed.
M2.5 x L5.5 Remove the upper case (with keyboard and touchpad) Make sure the following FRUs (CRUs) have been removed. “Remove the Lenovo Smart Pen” on page 28 “Remove the lower case” on page 28 “Remove the battery pack” on page 29 “Remove the solid-state drive (SSD)”...
“Remove the system board” on page 41 “Remove the LCD unit” on page 43 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Upper case (with keyboard and touchpad) Disassemble the LCD unit The LCD unit as a whole is not an FRU. Instead, it contains FRUs as its components. Before disassembling the LCD unit, make sure it has been detached from the upper case.
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“Remove the strip cover” on page 45 Step 1. Remove the rubber hinges. Figure 33. Remove the rubber hinges Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Rubber hinges Remove the LCD module Make sure the following FRUs (CRUs) have been removed.
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Step 3. Disconnect the touch cable, and then remove the LCD module. Figure 36. Disconnect the touch cable, and then remove the LCD module Go to to look up the Lenovo part numbers of the following https://support.lenovo.com/partslookup replacement parts: LCD module...
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Disconnect the EDP cable from the sensor board and then remove the EDP cable. Figure 37. Disconnect the EDP cable from the sensor board and then remove the EDP cable Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part:...
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Go to to look up the Lenovo part number of the following replacement https://support.lenovo.com/partslookup part: Microphone rubbers Remove the camera shutter Make sure the following FRUs (CRUs) have been removed. “Remove the LCD unit” on page 43 “Remove the strip cover” on page 45 “Remove the LCD module”...
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Figure 40. Disconnect the camera cable from the camera board and then remove the camera Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: Camera Remove the sensor board with cable Make sure the following FRUs (CRUs) have been removed.
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“Remove the camera” on page 49 “Remove the sensor board with cable” on page 50 “Remove the hinges” on page 50 Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part: LCD cover Chapter 4 Removing a FRU or CRU...