Lenovo Tablet 183822U User Manual

Hardware Maintenance Manual  
ThinkPad Tablet  
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Contents  
1
1
3
Electrical safety .  
Safety inspection guide .  
Screw notices .  
33  
discharge.  
3
4
4
34  
35  
36  
board  
19  
36  
40  
41  
19  
20  
20  
42  
44  
45  
46  
FRU identification for CTO, CMV, and GAV  
products .  
20  
23  
24  
24  
24  
25  
25  
hardware components . . . . . . . . 49  
52  
55  
56  
57  
57  
58  
58  
59  
59  
60  
60  
Miscellaneous parts  
Micro-USB cable.  
Notices .  
condition .  
27  
27  
28  
28  
29  
29  
29  
30  
Trademarks . .  
Power management  
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About this manual  
This manual contains service and reference information for the following ThinkPad® products.  
Machine  
Machine type (MT)  
ThinkPad Tablet  
1838, 1839  
Important:  
• This manual is intended only for trained service technicians who are familiar with ThinkPad products. Use  
this manual along with the advanced diagnostic tests to troubleshoot problems effectively.  
• Before servicing a ThinkPad product, be sure to read all the information under Chapter 1 “Safety  
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Chapter 1. Safety information  
This chapter presents following safety information that you need to be familiar with before you service a  
ThinkPad Tablet.  
“Electrical safety” on page 1  
“Safety inspection guide” on page 3  
“Grounding requirements” on page 4  
General safety  
Follow these rules to ensure general safety:  
• Observe good housekeeping in the area of the machines during and after maintenance.  
• When lifting any heavy object:  
1. Make sure that you can stand safely without slipping.  
2. Distribute the weight of the object equally between your feet.  
3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.  
4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the  
muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that  
you think is too heavy for you.  
• Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.  
• Before you start the machine, make sure that other service technicians and the customer's personnel are  
not in a hazardous position.  
• Place removed covers and other parts in a safe place, away from all personnel, while you are servicing  
the machine.  
• Keep your toolcase away from walk areas so that other people will not trip over it.  
• Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your  
sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.  
• Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, about 8  
centimeters (3 inches) from the end.  
• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.  
Attention: Metal objects are good electrical conductors.  
• Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using  
solvents, or working in any other conditions that might be hazardous to your eyes.  
• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device  
that is worn or defective.  
• Reinstall other parts that you have removed.  
Electrical safety  
Observe the following rules when working on electrical equipment.  
Important:  
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• 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.  
• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical  
accident occurs, you can then operate the switch or disconnect the micro-USB cable quickly.  
• 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  
– Removing or installing main units  
• Before you start to work on the machine, disconnect the micro-USB cable. If you cannot unplug it, power  
off the wall box that supplies power to the machine, and lock the wall box in the off position.  
• If you need to work on a machine that has exposed electrical circuits, observe the following precautions:  
– Ensure that another person, familiar with the power-off controls, is near you.  
Attention: Another person must be there to switch off the power, if necessary.  
– Use only one hand when working with powered-on electrical equipment; keep the other hand in your  
pocket or behind your back.  
Attention: An electrical shock can occur only when there is a complete circuit. By observing the above  
rule, you may prevent a current from passing through your body.  
– When using testers, set the controls correctly and use the approved probe leads and accessories for  
that tester.  
– Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as  
metal floor strips and machine frames.  
Observe the special safety precautions when you work with very high voltages; Instructions for these  
precautions are in the safety sections of maintenance information. Use extreme care when measuring  
high voltages.  
• Regularly inspect and maintain your electrical hand tools for safe operational condition.  
• Do not use worn or broken tools and testers.  
Never assume that power has been disconnected from a circuit. First, check that it has been powered off.  
• Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors,  
nongrounded power extension cables, power surges, and missing safety grounds.  
• Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is  
conductive; such touching can cause personal injury and machine damage.  
• Do not service the following parts with the power on when they are removed from their normal operating  
places in a machine:  
– Power supply units  
– Pumps  
– Motor generators  
– Similar units to listed above  
This practice ensures correct grounding of the units.  
• If an electrical accident occurs:  
– Use caution; do not become a victim yourself.  
– Switch off power.  
– Send another person to get medical aid.  
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Safety inspection guide  
The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each  
machine was designed and built, required safety items were installed to protect users and service technicians  
from injury. This guide addresses only those items. You should use good judgment to identify potential  
safety hazards due to attachment of non-ThinkPad 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.  
Consider these conditions and the safety hazards they present:  
• Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal  
electrical shock)  
• Explosive hazards, such as a damaged CRT face or a bulging capacitor  
• Mechanical hazards, such as loose or missing hardware  
To determine whether there are any potentially unsafe conditions, use the following checklist at the beginning  
of every service task. Begin the checks with the power off and the micro-USB cable disconnected.  
Checklist:  
1. Check exterior covers for damage (loose, broken, or sharp edges).  
2. Turn off the tablet.  
3. Disconnect the power supply of the internal battery by pressing the emergency reset button inside the  
emergency reset hole using a straightened paper clip.  
4. Disconnect the micro-USB cable.  
5. Check the micro-USB cable for the following:  
a. Make sure that a third-wire ground connector is in good condition. Use a meter to measure the  
third-wire ground continuity, and make sure that the continuity between the external ground pin and  
the frame ground is 0.1 ohm or less.  
b. The micro-USB cable is the type specified in the parts list.  
c. Insulation is not frayed or worn.  
6. Remove the LCD module assembly.  
7. Check for cracked or bulging internal batteries.  
8. Check for any obvious non-ThinkPad alterations. Use good judgment as to the safety of any  
non-ThinkPad alterations.  
9. 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.  
10. Check for worn, frayed, or pinched cables.  
11. Check that the internal battery fasteners (screws or rivets) have not been removed or tampered with.  
Handling devices that are sensitive to electrostatic discharge  
Any tablet part containing transistors or integrated circuits (ICs) should be considered sensitive to  
electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects.  
Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the  
person handling the part are all at the same charge.  
Notes:  
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1. Use product-specific ESD procedures when they exceed the requirements noted here.  
2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.  
When handling ESD-sensitive parts:  
• Keep the parts in protective packages until they are inserted into the product.  
• Avoid contact with other people.  
• Wear a grounded wrist strap against your skin to eliminate static on your body.  
• Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when  
you are wearing a wrist strap.  
• 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.  
– Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.  
– When working on a double-insulated or battery-operated system, use an ESD common ground or  
reference point. You can use coax or connector-outside shells on these systems.  
– Use the round ground prong of the ac plug on ac-operated tablets.  
Grounding requirements  
Electrical grounding of the tablet 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:  
• English  
• Arabic  
• Brazilian Portuguese  
• French  
• German  
• Hebrew  
• Japanese  
• Korean  
• Spanish  
Traditional Chinese  
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Chapter 2. Important service information  
This chapter presents the following important service information that applies to all machine types supported  
by this manual:  
“Product definition” on page 20  
“FRU identification for CTO, CMV, and GAV products” on page 20  
Important:  
• Advise customers to access http://www.lenovo.com/support to view the software fixes and driver  
downloads for the tablet. To install them, advise customers to call the Lenovo® Customer Support Center.  
Telephone numbers for Lenovo Support Center are available at:  
http://www.lenovo.com/support/phone  
• System disassembly and reassembly videos that show the FRU removal and replacement procedures for  
the Lenovo authorized service technicians are available at:  
Strategy for replacing FRUs  
Before replacing parts:  
Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs:  
If you are instructed to replace a FRU but the replacement does not correct the problem, reinstall  
the original FRU before you continue.  
• Some tablets have both a processor board and a system board. If you are instructed to replace either  
the processor board or the system board, and replacing one of them does not correct the problem,  
reinstall that board, and then replace the other one.  
• If an adapter or a device consists of more than one FRU, any of the FRUs may be the cause of the error.  
Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change.  
Replace only the FRU that changed the symptoms.  
Attention: The setup configuration on the tablet you are servicing may have been customized. Running  
Automatic Configuration may alter the settings. Note the current configuration settings (using the View  
Configuration option); then, when service has been completed, verify that those settings remain in effect.  
Important notice for replacing a system board  
Attention: When handling a system board:  
• Do not drop a system board or apply any excessive force to it.  
• Avoid rough handling of any kind.  
• Avoid bending a system board and hard pushing to prevent cracking at each BGA (Ball Grid Array) chipset.  
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Strategy for replacing FRUs for CTO, CMV, and GAV  
Product definition  
Dynamic Configure To Order (CTO)  
This provides the ability for a customer to configure a Lenovo solution from an eSite, and have this  
configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label,  
Product Entitlement Warehouse (PEW), eSupport, and the HMM will load these products as the 4-digit MT  
and 3-digit model, where model = “CTO” (Example: 1829-CTO).  
Custom Model Variant (CMV)  
This is a unique configuration that has been negotiated between Lenovo and the customer. A unique 4-digit  
MT and 3-digit model is provided to the customer to place orders (Example: 1829-W15). A CMV is a special  
bid offering. Therefore, it is NOT generally announced.  
• The MTM portion of the machine label is the 4-digit MT and 3-digit model, where model = “CTO”  
(Example: 1829-CTO). The PRODUCT ID portion of the machine label is the 4-digit MT and 3-digit CMV  
model (Example: 1829-W15).  
• The PEW record is the 4-digit MT and 3-digit model, where model = “CTO” (Example: 1829-CTO).  
• eSupport will show both the CTO and CMV machine type models (Example: 1829-CTO and 1829-W15  
will be found on the eSupport site.)  
• The HMM will have the 4-digit MT and 3-digit CTO model only (Example: 1829-CTO). Again, CMVs are  
custom models and are not found in the HMM.  
General Announce Variant (GAV)  
This is a standard model (fixed configuration). GAVs are announced and offered to all customers. The MTM  
portion of the machine label is a 4-digit MT and 3-digit model, where model = a “fixed part number”, not  
“CTO” (Example: 1829-F1U). Also, PEW, eSupport, and the HMM will list these products under the same  
fixed model number.  
FRU identification for CTO, CMV, and GAV products  
There are three information resources to identify which FRUs are used to support CTO, CMV, and GAV  
products. These sources are PEW, eSupport, and the HMM.  
Using PEW  
PEW is the primary source for identifying FRU part numbers and FRU descriptions for the key  
commodities for CTO, CMV and GAV products at a MT - serial number level. An example of key  
commodities are system boards and Liquid Crystal Displays (LCDs).  
• Remember, all CTO and CMV products are loaded in PEW under the 4-digit MT and 3-digit model, where  
model = “CTO” (Example: 1829-CTO). GAVs are loaded in PEW under the 4-digit MT and 3-digit model,  
where model = a “fixed part number”, not “CTO” (Example: 1829-F1U).  
• PEW can be accessed at the following Web site:  
Select Warranty lookup. Input the machine type and the serial number and the list of key commodities will  
be returned in the PEW record under COMPONENT INFORMATION.  
Using eSupport  
For key commodities (examples - system board and LCD)  
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• eSupport can be used to view the list of key commodities built in a particular machine serial (this is the  
same record found in PEW).  
• eSupport can be accessed at the following Web site:  
To view the key commodities, do the following:  
1. Click Products & Service Warranty.  
2. Click Check Warranty Status.  
3. On the Warranty Status Lookup page, click Parts Lookup.  
4. Type your machine type and serial number, and then click Submit. The key commodities will be  
displayed.  
For the remaining FRUs (the complete list of FRUs at the MT model level)  
• eSupport can be used to view the complete list of FRUs for a machine type and model.  
To view the complete list of FRUs, do the following:  
1. Click Product & Parts Detail and then follow the instructions on the screen to reach the Product  
and Parts Details page.  
2. Click the Parts Detail tab to view the list of service parts.  
Using the HMM  
For key commodities (examples - system board and LCD)  
Use the HMM as a backup to PEW and eSupport to view the complete list of FRUs at the MT model level.  
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Chapter 3. General checkout  
This chapter presents the following information:  
Diagnostics: Instructions for accessing and using system resident service diagnostics can be found at the  
following Web site:  
Note: To access and use the diagnostics, you must have a valid login ID and password.  
Important:  
Only certified trained personnel should service the computer.  
Before replacing any FRU, read the entire page on removing and replacing FRUs.  
When you replace FRUs, use new nylon-coated screws.  
Be extremely careful during such write operations as copying, saving, or formatting.  
Replace a FRU only with another FRU of the correct model.  
When you replace a FRU, make sure that the model of the machine and the FRU part number are correct  
by referring to the FRU parts list.  
A FRU should not be replaced because of a single, unreproducible failure.  
Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such  
as cosmic radiation, electrostatic discharge, or software errors. Consider replacing a FRU only when  
a problem recurs. If you suspect that a FRU is defective, clear the error log and run the test again. If  
the error does not recur, do not replace the FRU.  
Be careful not to replace a non-defective FRU.  
What to do first  
When you do return a FRU, you must include the following information in the parts exchange form or  
parts return form that you attach to it:  
1. Name and phone number of service technician  
2. Date of service  
3. Date on which the machine failed  
4. Date of purchase  
5. Failing FRU name and part number  
6. Machine type, model number, and serial number  
7. Customer's name and address  
Note: During the warranty period, the customer may be responsible for repair costs if the tablet damage  
was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper  
maintenance by the customer. Following is a list of some common items that are not covered under warranty  
and some symptoms that might indicate that the system was subjected to stress beyond normal use.  
Before checking problems with the tablet, determine whether the damage is covered under the warranty by  
referring to the following list:  
The following are not covered under warranty:  
• LCD panel cracked from the application of excessive force or from being dropped  
• Scratched (cosmetic) parts  
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• 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  
• Damage caused by the improper insertion of a PC Card or the installation of an incompatible card  
• Fuses blown by attachment of a nonsupported device  
• Forgotten tablet password (making the tablet unusable)  
• Sticky keys caused by spilling a liquid  
• Damage caused due to use of an incorrect ac charger  
The following symptom might indicate damage caused by nonwarranted activities:  
• Missing parts might be a symptom of unauthorized service or modification.  
Power system checkout  
To verify a symptom, do the following:  
1. Turn off the tablet.  
2. Remove the internal battery.  
3. Attach the tablet to a ThinkPad Tablet Dock (hereafter referred to as the dock) and then connect the  
dock to an electrical outlet using the 65 W ac power adapter shipped with the dock.  
4. Check whether power is supplied when you turn on the tablet.  
5. Turn off the tablet.  
6. Disconnect the ac power adapter and detach the dock. Then install the internal battery.  
7. Check whether the internal battery supplies power when you turn on the tablet.  
If you suspect a power problem, see the appropriate one of the following power supply checkouts:  
Checking the internal battery  
When you use the internal battery but the tablet fails, see the instructions in this topic to check the internal  
battery.  
To check the internal battery, do the following:  
1. Turn off the tablet.  
2. Replace the internal battery with another battery.  
3. Check that power is supplied when you turn on the tablet.  
If you can turn on the tablet, replace the internal battery.  
Checking the internal battery condition  
After you have used the tablet for a long time, check the internal battery condition and determine if the  
battery shall be replaced with a new one.  
To check the internal battery condition, do the following:  
1. Open the Android Settings screen.  
To open the Android Settings screen, do either of the following:  
• From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The Android  
Settings screen is displayed.  
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Touch the application icon from the action bar and then touch Settings. The Android Settings  
screen is displayed.  
2. Touch About tablet.  
3. Touch Status Battery Condition. One of the following conditions might be displayed:  
Good  
Fair  
Poor  
If the condition is Fair or Poor, replace the internal battery.  
Checking the ThinkPad Tablet AC Charger  
When you use the ThinkPad Tablet AC Charger to charge the tablet but no power is charged, see the  
instructions in this topic to check the ThinkPad Tablet AC Charger.  
To check the ThinkPad Tablet AC Charger, do the following:  
1. Disconnect the micro-USB cable from the tablet.  
2. Measure the output voltage across the connector marked B of the micro-USB cable. Refer to the  
following figure:  
2
3 (5V)  
Pin  
1
Voltage (V dc)  
Ground  
2
0
3
+5  
Note: The output voltage across pin 3 of the micro-B connector might be different from the one you are  
servicing.  
3. If the voltage is not correct, replace the micro-USB cable.  
4. If the voltage is acceptable, replace the system board.  
Checking the internal battery status  
To check the battery status of the tablet, do either of the following:  
Approximate information about the battery status  
Get the approximate status of the battery at any time by checking the battery status icon on the system  
bar in the lower-right corner of the screen. The shorter the blue bar is, the less the battery power remains.  
Accurate information about the battery status  
To get the accurate information about the battery status of the tablet, do the following:  
1. Open the Android Settings screen.  
To open the Android Settings screen, do either of the following:  
– From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The  
Android Settings screen is displayed.  
Touch the application icon from the action bar and then touch Settings. The Android Settings  
screen is displayed.  
2. Touch About tablet on the Android Settings screen.  
3. Touch Status to view the accurate percentage of the remaining battery power. You also can touch  
Battery use to check what applications are consuming battery power.  
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Chapter 4. Related service information  
This chapter presents the following information:  
“Locking the screen” on page 27  
“Power management” on page 29  
Resetting a tablet preload to the factory condition  
Note: The following data will be erased when you reset a tablet preload to the factory condition.  
• Google Account  
• System and application data and settings  
• Downloaded applications  
• Music  
• Photos  
• Other user data  
To reset a tablet preload to the factory condition, do the following:  
1. Open the Android Settings screen.  
To open the Android Settings screen, do either of the following:  
• From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The Android  
Settings screen is displayed.  
Touch the application icon from the action bar and then touch Settings. The Android Settings  
screen is displayed.  
2. Touch Privacy.  
3. Touch Factory data reset.  
4. Touch the Reset tablet icon and the tablet will be reset to the factory condition.  
Locking the screen  
To protect your tablet data against unauthorized access, lock the screen and set an unlock mode for  
unlocking the screen. The screen unlock mode can be a personal or corporate password, a PIN, or a pattern.  
After a screen unlock mode is set and the screen is locked, the next time you turn on your tablet or wake up  
the screen, you must type the password or the PIN, or draw the unlock pattern to unlock it.  
After you lock the tablet, nothing happens if you touch the screen, but you still can listen to the music and  
use the volume control buttons.  
Notes: To listen to the music when the screen is locked, do the following:  
1. Open the Android Settings screen.  
To open the Android Settings screen, do either of the following:  
• From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The Android  
Settings screen is displayed.  
Touch the application icon from the action bar and then touch Settings. The Android Settings  
screen is displayed.  
2. Touch Privacy.  
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3. Touch the Screen lock sounds icon.  
Enabling the screen unlock function  
To enable the screen unlock function and set up a password, PIN, or pattern to unlock the screen, do  
the following:  
1. Open the Android Settings screen.  
To open the Android Settings screen, do either of the following:  
• From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The Android  
Settings screen is displayed.  
Touch the application icon from the action bar and then touch Settings. The Android Settings  
screen is displayed.  
2. Touch Location & Security Configure lock screen to open a list of options.  
3. Touch one of the following options to set up the screen unlock mode:  
Not secured: No password, PIN, or pattern is required to unlock the screen.  
Pattern: A pattern is a unique way you set to unlock the screen. The first time you try to set a  
pattern, a short tutorial about creating an unlock pattern is displayed.  
PIN: Type a series of numbers.  
Password: Type a series of characters, numbers, or a combination of both.  
Corporate Logon: Select this option to use the same user name and password when you log on to  
your company’s Active Directory domain to unlock your tablet screen.  
4. Touch OK to save your setting. The next time you turn on the tablet or wake up the screen, type the  
password or the PIN, or draw the unlock pattern to unlock the screen.  
Notes:  
• For the Corporate Logon mode, after 10 incorrect attempts to unlock your tablet, your tablet will reset  
itself to the factory default state. This process erases all user-created data from the tablet, including  
Google or other e-mail account settings, system and application data and settings, and downloaded  
applications.  
• For other unlock modes, if you forget the password, PIN, or pattern, contact Lenovo support for system  
reset.After 10 times of incorrect password, PIN, or pattern input, the tablet will reset itself to the factory  
default settings. The reset process will erase all data from the tablet, including Google or other e-mail  
account settings, system and application data and settings, and downloaded applications. Therefore,  
take a note of your password, PIN, or pattern in case you forget it.  
Changing the password, PIN, or pattern  
To change a password, PIN, or pattern, do the following:  
1. Open the Android Settings screen.  
To open the Android Settings screen, do either of the following:  
• From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The Android  
Settings screen is displayed.  
Touch the application icon from the action bar and then touch Settings. The Android Settings  
screen is displayed.  
2. Touch Location & Security Configure lock screen.  
3. Touch the screen unlock mode you have set and type the password or PIN, or draw the pattern. Then  
touch OK.  
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4. Type your new password or PIN, or draw a new pattern. Confirm it by typing or drawing it for a second  
time.  
5. Touch OK to save your change.  
Disabling the screen lock function  
To disable the screen lock function, do the following:  
1. Open the Android Settings screen.  
To open the Android Settings screen, do either of the following:  
• From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The Android  
Settings screen is displayed.  
Touch the application icon from the action bar and then touch Settings. The Android Settings  
screen is displayed.  
2. Touch Location & Security Configure lock screen.  
3. Touch Not secured. The screen unlock function is disabled.  
Power management  
To reduce power consumption, you can set the tablet into screen blank mode or disconnect the tablet from  
the wireless network.  
Screen blank mode  
To turn off the screen when the tablet is not in use, do either of the following:  
• Press the power button once.  
Touch the screen lock widget to turn off the screen.  
For more information about how to lock the screen, refer to “Locking the screen” on page 27.  
• Configure the Timeout policy to turn off the screen automatically when the tablet is not in use.  
To configure the Timeout policy, do the following:  
1. Open the Android Settings screen.  
To open the Android Settings screen, do either of the following:  
– From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The  
Android Settings screen is displayed.  
Touch the application icon from the action bar and then touch Settings. The Android Settings  
screen is displayed.  
2. Touch Screen.  
3. Touch Timeout and then select when the screen will be turned off automatically if the tablet is  
not in use.  
Note: The tablet screen turns off automatically after 30 minutes when the tablet is not in use.  
To resume the tablet from screen blank mode, do either of the following:  
• Press any key button.  
Touch the Unlock icon on the main Home screen to unlock the screen.  
Note: If you have set up a screen unlock password, PIN, or pattern, type the password or PIN, or draw  
the pattern to unlock the screen. For more information about how to change or remove the password,  
PIN, or pattern, refer to “Disabling the screen lock function” on page 29.  
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Wireless network disconnect policy  
To get a longer battery life, manage your wireless connections more reasonably by configuring the wireless  
network disconnect policy.  
To configure the wireless network disconnect policy, do the following:  
1. Open the Android Settings screen.  
To open the Android Settings screen, do either of the following:  
• From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The Android  
Settings screen is displayed.  
Touch the application icon from the action bar and then touch Settings. The Android Settings  
screen is displayed.  
2. Touch Wireless & network Wi-Fi settings.  
3. Touch the Menu icon and then touch Advanced.  
4. Touch Wireless Enhanced Settings. The following options are displayed. Touch to enable the function  
or to further configure the setting.  
Turn off Wi-Fi when display is off  
Never turn off Wi-Fi when connect to the specified [SSID]  
Turn off Wi-Fi on schedule  
Turn off WAN when connect to Wi-Fi  
Connect to the WAN  
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Chapter 5. Hot key combinations on the ThinkPad Tablet  
Keyboard Folio Case  
The following table lists the functions of the hot key combinations on the ThinkPad Tablet Keyboard Folio  
Case.  
Table 1. Hot key combinations on the ThinkPad Tablet Keyboard Folio Case  
Hot key  
Description  
Go back to the previous screen  
Speaker mute  
Speaker volume down  
Speaker volume up  
Microphone mute  
Open the main Home screen  
View notifications from Lenovo  
Open the Android Settings screen  
Lock the screen  
Zoom in  
Zoom out  
Go to the previous track or scene  
Play or pause  
Go to the next track or scene  
Open the menu for the current application  
Launch Google Search  
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Chapter 6. FRU replacement notices  
External CRU statement to customers:  
Some problems with your product can be resolved with a replacement part you can install yourself, called  
a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as Self-service CRUs and others  
are designated as Optional-service CRUs. Installation of Self-service CRUs is your responsibility; you may  
request that Lenovo installs an Optional-service CRU according to the warranty service for your product.  
Where you are installing the CRU, 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 may  
may be required to return the defective part that is replaced by the CRU. When return is required: (1) return  
instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you  
may be charged for the replacement CRU if Lenovo does not receive the defective part within thirty (30) days  
of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details.  
This chapter presents notices related to removing and replacing parts. Read this chapter carefully before  
replacing any FRU.  
Screw notices  
Loose screws can cause a reliability problem. In a ThinkPad Tablet, this problem is addressed with special  
nylon-coated screws that have the following characteristics:  
• They maintain tight connections.  
• They do not easily come loose, even with shock or vibration.  
• They are harder to tighten.  
• Each one should be used only once.  
Do the following when you service the tablet:  
• Keep the screw kit in your tool bag. For the part number (P/N) of the screw kit, see “Miscellaneous  
• Always use new screws.  
• Use a torque screwdriver if you have one.  
Tighten screws as follows:  
Plastic to plastic  
Turn an additional angle of 90 degrees after the screw head touches the surface of the plastic part.  
Logic card to plastic  
Turn an additional angle of 180 degrees after the screw head touches the surface of the logic card.  
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Notes:  
• Make sure that you use the correct screw. If you have a torque screwdriver, tighten all screws firmly to the  
torque shown in the table for each step in Chapter 7 “Removing and replacing a FRU” on page 35. Never  
use a screw that you removed. Use a new one. Make sure that all of the screws are tightened firmly.  
• Ensure torque screwdrivers are calibrated correctly following country specifications.  
Retaining serial numbers, MTM, UUID, and Asset ID  
Instructions for retaining serial numbers, MTM, UUID, or asset ID can be found at the following Web site:  
Note: To access the instructions, use, and download the required Android Package (APK) file, you must  
have a valid login ID and password.  
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Chapter 7. Removing and replacing a FRU  
External CRU statement to customers:  
Some problems with your product can be resolved with a replacement part you can install yourself, called  
a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as Self-service CRUs and others  
are designated as Optional-service CRUs. Installation of Self-service CRUs is your responsibility; you may  
request that Lenovo installs an Optional-service CRU according to the warranty service for your product.  
Where you are installing the CRU, 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 may  
may be required to return the defective part that is replaced by the CRU. When return is required: (1) return  
instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you  
may be charged for the replacement CRU if Lenovo does not receive the defective part within thirty (30) days  
of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details.  
This chapter presents directions and drawings for use in removing and replacing a FRU. Be sure to observe  
the following general rules:  
1. Do not try to service any tablet unless you have been trained and certified. An untrained person runs  
the risk of damaging parts.  
2. Before replacing any FRU, review Chapter 6 “FRU replacement notices” on page 33.  
3. Begin by removing any FRUs that have to be removed before replacing the failing FRU. Any such FRUs  
are listed at the top of each FRU replacement page. Remove them in the order in which they are listed.  
4. Follow the correct sequence in the steps for removing a FRU, as given in the drawings by the numbers  
in square callouts.  
5. When turning a screw to replace a FRU, turn it in the direction as given by the arrow in the drawing.  
6. When removing a FRU, move it in the direction as given by the arrow in the drawing.  
7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain to  
replacement. For information about connecting and arranging internal cables, see Chapter 8 “Locating  
8. When replacing a FRU, use the correct screw(s) as shown in the procedures.  
DANGER  
Before removing any FRU, turn off the tablet, disconnect all power supplies, remove the internal  
battery, and then disconnect any interconnecting cable.  
Attention: After replacing a FRU, do not turn on the tablet until you have made sure that all screws, springs,  
and other small parts are in place and none are loose inside the tablet. Verify this by shaking the tablet gently  
and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.  
Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge. Before  
touching it, establish personal grounding by touching a ground point with one hand or by using an  
electrostatic discharge (ESD) strap (P/N 6405959).  
Before servicing the ThinkPad Tablet  
Some models of the ThinkPad Tablet you are servicing might have the SIM card that the customer has  
installed.  
If the tablet you are servicing has the SIM card, remove it before you start the servicing.  
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Note: Before removing the SIM card, disconnect the power supply of the internal battery by pressing the  
emergency reset button inside the emergency reset hole using a straightened paper clip.  
After you finish the servicing, make sure that you insert the card back into the slot firmly.  
1010 ThinkPad Tablet Pen  
Removal steps of ThinkPad Tablet Pen  
1020 Front-facing camera, rear-facing camera assembly, and internal  
battery  
For access, remove this FRU:  
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Removal steps of front-facing camera, rear-facing camera assembly, and internal battery  
DANGER  
Use only the battery specified in the parts list for the tablet. Any other battery could ignite or  
explode.  
Note: Before removing the front-facing camera, rear-facing camera assembly, and internal battery,  
disconnect the power supply of the internal battery by pressing the emergency reset button inside the  
emergency reset hole using a straightened paper clip.  
Detach the Back and Home buttons on the LCD module assembly with your thumbs as shown in the  
following illustration.  
3
3
Torque  
Step  
Screw (quantity)  
Color  
3
0.181 Nm  
M2 × 8 mm, flat-head, nylon-coated (2)  
Silver  
(1.85 kgfcm)  
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Insert a nipper into the gap between the LCD module assembly and the base cover and then detach the  
hooks between the LCD module assembly and the base cover.  
5a  
5b  
4
9
8
7
6
When installing: Make sure that the connector is attached firmly to the system board.  
Torque  
Step  
Screw (quantity)  
Color  
9
0.181 Nm  
M2 × 4 mm, flat-head, nylon-coated (1)  
Silver  
(1.85 kgfcm)  
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12  
13  
11  
10  
When installing: Make sure that the connector is attached firmly to the system board.  
Torque  
Step  
Screw (quantity)  
Color  
12  
0.181 Nm  
M2 × 4 mm, flat-head, nylon-coated (1)  
Silver  
(1.85 kgfcm)  
14  
14  
14  
Torque  
Step  
Screw (quantity)  
Color  
14  
0.181 Nm  
M2 × 4 mm, flat-head, nylon-coated (3)  
Silver  
(1.85 kgfcm)  
Chapter 7. Removing and replacing a FRU 39  
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15  
16  
When installing: Make sure that the battery connector 16 is attached firmly to the system board.  
1030 Speaker assembly  
For access, remove these FRUs in order:  
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Removal steps of speaker assembly  
Torque  
Step  
Screw (quantity)  
Color  
1
Black  
0.181 Nm  
M2 × 3 mm, flat-head, nylon-coated (1)  
(1.85 kgfcm)  
When installing: Make sure that the connector 3 is attached firmly to the system board.  
1040 PCI Express Mini Card for wireless WAN  
For access, remove these FRUs in order:  
Removal steps of PCI Express Mini Card for wireless WAN  
In step 1 , unplug the jacks by using the removal tool antenna RF connector (P/N: 08K7159) or pick the  
connectors with your fingers and gently unplug them in the direction of the arrows.  
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1
2
1
Torque  
Step  
Screw (quantity)  
Color  
2
Black  
0.181 Nm  
M2 × 3 mm, flat-head, nylon-coated (1)  
(1.85 kgfcm)  
When installing: When you install the card, plug the red cable into the jack labeled MAIN on the card, and  
the blue cable into the jack labeled AUX.  
1050 PCI Express Mini Card for wireless LAN and Bluetooth combo card  
For access, remove these FRUs in order:  
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Removal steps of PCI Express Mini Card for wireless LAN and Bluetooth combo card  
In step 1 , unplug the jacks by using the removal tool antenna RF connector (P/N: 08K7159) or pick the  
connectors with your fingers and gently unplug them in the direction of the arrows.  
Note: Some models might have a third white antenna cable.  
1
2
1
Torque  
Step  
Screw (quantity)  
Color  
2
Black  
0.181 Nm  
M2 × 3 mm, flat-head, nylon-coated (1)  
(1.85 kgfcm)  
Chapter 7. Removing and replacing a FRU 43  
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When installing: Plug the gray cable into the jack marked MAIN or M, and the black cable into the jack  
marked AUX or A on the card.  
Note: In models with a wireless LAN card that has three antenna connectors, plug the gray cable (MAIN) into  
the jack marked TR1, the white cable (third) into the jack marked RO or TR3, and the black cable (AUX)  
into the jack marked TR2 on the card.  
1060 LCD module assembly  
For access, remove these FRUs in order:  
Removal steps of LCD module assembly  
2
5
3
4
6
1
7
When installing: Make sure that the connectors are attached firmly.  
Note: When you replace the LCD module assembly, apply the FCC label a to the assembly as shown in  
the following illustration.  
a
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1070 Microphone assembly  
For access, remove these FRUs in order:  
Removal steps of microphone assembly  
Detach the wireless WAN antenna assembly in the direction as shown by the arrow 2 .  
2
1
When installing: Make sure that the connector 1 is attached firmly to the system board.  
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3
1080 System board, base cover, and LCD cable  
For access, remove these FRUs in order:  
Removal steps of system board and base cover  
In step 1 , unplug the jack by using the removal tool antenna RF connector (P/N: 08K7159) or pick the  
connector with your fingers and gently unplug it in the direction of the arrow.  
1
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2
2
2
2
3
Torque  
Step  
Screw (quantity)  
M2 × 3 mm, flat-head, nylon-coated (4)  
Color  
2
Black  
0.181 Nm  
(1.85 kgfcm)  
Applying labels to the base cover  
The new base cover FRU is shipped with a kit containing labels of several kinds.  
When you replace the base cover, apply the following labels:  
10 Homologation label  
11 Serial number label  
Following labels need to be peeled off from the old base cover, and need to be put on the new base cover.  
1 Israel Homo Wireless LAN/Bluetooth label  
2 Non Encryption label  
9 GEO label (for others)  
12 Brazil Anatel 3G label  
3 Israel Homo 3G labellabel  
4 Indonesia Kit label  
13 Brazil Anatel Wireless LAN/Bluetooth label  
14 SIRIM 3G label  
5 China Wireless WAN label  
15 SIRIM Wireless LAN/Bluetooth label  
16 Indonesia Postel Wireless LAN/Bluetooth label  
6 China Wireless WAN label (for models with Huawei  
EM660 card)  
7 Wireless WAN MAC address label  
17 Indonesia Postel 3G label  
8 GEO label (for China)  
For the location of each label, refer to the following figure:  
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2
4
1
3
17  
5
16  
15  
14  
13  
6
12  
11  
9
8
7
10  
Removal steps of LCD cable  
When installing: Make sure that the LCD cable is attached firmly to the system board.  
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Chapter 8. Locating the controls and hardware components  
This following illustration shows the locations of controls and hardware components on a ThinkPad Tablet.  
1
2
3
17  
18  
16  
4
19  
15  
5
6
7
20  
21  
22  
8
9
14  
10  
13  
12  
11  
1 Power button  
12 Speaker  
13 ThinkPad Tablet Pen slot  
2 Microphone  
3 Rear-facing camera  
14 ThinkPad Tablet Pen string holes  
15 Volume control button  
16 Ambient light sensor  
17 Front-facing camera  
18 Multi-touch display  
19 Home button  
4 Headphone or microphone connector  
5 Mini HDMI connector  
6 Micro-USB connector  
7 ThinkPad Tablet Dock connector  
8 SIM card slot  
9 Emergency reset hole  
10 3-in-1 media card reader  
11 USB connector  
20 Back button  
21 Browser button  
22 Screen rotation lock button  
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Chapter 9. Parts list  
This section contains following lists of the service parts.  
“Overall” on page 52  
“ThinkPad Tablet Keyboard Folio Case OP ” on page 55  
“Miscellaneous parts” on page 56  
“Micro-USB cable” on page 58  
Notes:  
• Each FRU is available for all types or models, unless specific types or models are specified.  
• FRU with specific models listed and described as xxU (where U is an example of a country designator) should be  
used for all models ending in U.  
• FRU with specific models listed and described as 3Dx (where 3D is an example of a unique configuration) should be  
used for all of these models, unless specific country or region designator is specified.  
• A CRU (customer replaceable unit) is identified by a single asterisk (*) or two asterisks (**) in the CRU ID column. An  
N in the CRU ID column means that the part is not a CRU. A single asterisk (*) means that the part is a Self-service  
CRU; two asterisks (**) means that the part is an Optional-service CRU.  
External CRU statement to customers:  
Some problems with your product can be resolved with a replacement part you can install yourself, called  
a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as Self-service CRUs and others are  
designated as Optional-service CRUs. Installation of Self-service CRUs is your responsibility; you may request  
that Lenovo installs an Optional-service CRU according to the warranty service for your product. Where you are  
installing the CRU, 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 may find a list of CRUs in the  
publications that ship with your product or at http://www.lenovo.com/CRUs. You may be required to return the  
defective part that is replaced by the CRU. When return is required: (1) return instructions, a prepaid shipping label,  
and a container will be included with the replacement CRU; and (2) you may be charged for the replacement CRU if  
Lenovo does not receive the defective part within thirty (30) days of your receipt of the replacement CRU. See your  
Lenovo Limited Warranty documentation for full details.  
A ThinkPad Tablet contains the following types of CRUs:  
Self-service CRUs: These CRUs unplug or are held by no more than two screws. Examples of these types of  
CRUs include the ac charger and micro-USB cable. Other Self-service CRUs depending on product design  
might include the wireless card and ThnkPad Tablet Keyboard Folio Case.  
Optional-service CRUs: These CRUs are isolated parts within the tablet that are concealed by an access panel  
that is typically secured by more than two screws. Once the access panel is removed, the specific CRU is visible.  
• FRUs marked with OP are available as options.  
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Overall  
14  
13  
12  
2
3
11  
10  
9
4
5
6
8
7
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Table 2. Parts list - Overall  
No. FRU  
FRU no.  
CRU  
ID  
1
04W2150  
04W2151  
04W2152  
N
LCD module assembly, 10.1" WXGA  
• 1838-CTO, 22x, 23x, 24x, 25x, 26x, 27x, 28x, 29x, 2Ax, 2Bx, 2Cx, 2Dx, 2Ex, 2Fx, 2Gx,  
2Hx, 2Jx, 2Kx, 2Lx, 2Mx, 2Nx, 2Px, 2Qx, 2Rx, 2Sx, 2Tx, 2Ux, 2Vx, 2Wx, 2Xx, 2Yx, 2Zx,  
32x, 33x, 34x, 35x, 36x, 37x, 38x, 39x, 3Ax, 3Bx, 3Cx, 3Dx, 3Ex, 3Fx, 3Gx, 3Hx, 3Jx, 3Kx,  
3Lx, 3Mx, 3Nx, 3Px, 3Qx, 3Rx, 3Sx, 3Tx, 3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 3Zx, 42x, 43x, 44x,  
45x, 46x, 47x, 48x, 49x, 4Ax, 4Bx, 4Cx, 4Dx, 4Ex  
• 1839-CTO, 22x, 23x, 24x, 25x, 26x, 27x, 28x, 29x, 2Ax, 2Bx, 2Cx, 2Dx, 2Ex, 2Fx, 2Gx,  
2Hx, 2Jx, 2Kx, 2Lx, 2Mx, 2Nx, 2Px, 2Qx, 2Rx, 2Sx, 2Tx, 2Ux, 2Vx, 2Wx, 2Xx, 2Yx, 2Zx,  
32x, 33x, 34x, 35x, 36x, 37x, 38x, 39x, 3Ax, 3Bx, 3Cx, 3Dx, 3Ex, 3Fx, 3Gx  
2
2
2
2
2
60Y3257  
60Y3291  
60Y3279  
60Y3267  
60Y3289  
N
N
N
N
N
Integrated Mobile Broadband (Gobi 3000)  
• 1838-CTO  
• 1839-CTO  
Integrated Mobile Broadband (Gobi 3000), Indigo only SKU  
• 1838-CTO, 29x, 2Ax  
• 1839-CTO  
Integrated Mobile Broadband (F5521gw)  
• 1838-CTO  
• 1839-CTO  
Integrated Mobile Broadband (F5521gw), Malaysia SKU  
• 1838-CTO  
• 1839-CTO  
Integrated Mobile Broadband (F5521gw), Indigo only SKU  
• 1838-CTO, 2Bx, 2Cx, 2Dx, 2Ex, 2Fx, 2Gx, 2Mx, 2Nx, 2Px, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx,  
3Nx, 3Px, 3Qx, 3Rx, 3Sx, 3Tx, 3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 3Zx, 42x, 43x, 44x, 45x, 46x,  
47x, 48x, 49x, 4Ax, 4Bx, 4Cx, 4Dx, 4Ex  
• 1839-CTO, 2Hx, 2Kx, 2Mx, 2Nx, 2Px, 2Qx, 2Rx, 36x, 37x, 38x, 39x, 3Ax, 3Bx, 3Cx, 3Dx,  
3Ex, 3Fx, 3Gx  
2
60Y3239  
N
Integrated China Telecom Mobile Broadband (Huawei EM660)  
• 1838-CTO  
• 1839-CTO  
3
4
60Y3285  
04W3406  
N
N
Azuware BC4329 (SDIO) Wireless & Bluetooth combo card  
System board assembly, 16 GB eMMC, 1 GB memory, with WWAN antenna, Non-DRM, China  
• 1838-CTO  
• 1839-CTO  
4
4
04W3400  
04W2147  
N
N
System board assembly, 16 GB eMMC, 1 GB memory, with WWAN antenna, DRM, U.K.  
• 1838-CTO  
• 1839-CTO  
System board assembly, 16 GB eMMC, 1 GB memory, with WWAN antenna, DRM, U.S.  
• 1838-CTO, 22x, 23x, 24x, 29x, 2Bx, 2Gx, 2Hx, 2Mx, 2Qx, 2Sx, 2Vx, 2Wx, 2Xx, 2Yx, 2Zx,  
32x, 33x, 34x, 35x, 36x, 37x, 38x, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Px, 3Qx, 4Ax, 4Bx  
• 1839-CTO, 22x, 23x, 24x, 29x, 2Ax, 2Lx, 2Mx, 2Nx, 2Sx, 2Tx, 2Ux, 2Vx, 2Wx, 2Xx, 36x,  
37x, 38x  
4
04W3403  
N
System board assembly, 16 GB eMMC, 1 GB memory, with WWAN antenna, DRM, western  
European  
• 1838-CTO  
• 1839-CTO  
Chapter 9. Parts list 53  
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Table 2. Parts list - Overall (continued)  
No. FRU  
FRU no.  
CRU  
ID  
4
04W3409  
N
System board assembly, 16 GB eMMC, 1 GB memory, with WWAN antenna, Non-DRM,  
worldwide  
• 1838-CTO  
• 1839-CTO  
4
4
4
04W3407  
04W3401  
04W2148  
N
N
N
System board assembly, 32 GB eMMC, 1 GB memory, with WWAN antenna, Non-DRM, China  
• 1838-CTO  
• 1839-CTO  
System board assembly, 32 GB eMMC, 1 GB memory, with WWAN antenna, DRM, U.K.  
• 1838-CTO  
• 1839-CTO  
System board assembly, 32 GB eMMC, 1 GB memory, with WWAN antenna, DRM, U.S.  
• 1838-CTO, 25x, 26x, 2Ax, 2Cx, 2Ex, 2Jx, 2Lx, 2Nx, 2Tx, 39x, 3Ax, 3Bx, 3Cx, 3Rx, 3Sx,  
3Tx, 3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 4Cx, 4Dx  
• 1839-CTO, 25x, 26x, 2Bx, 2Cx, 2Dx, 2Kx, 2Px, 2Qx, 2Yx, 2Zx, 32x, 39x, 3Ax, 3Bx  
4
4
04W3404  
04W3410  
N
N
System board assembly, 32 GB eMMC, 1 GB memory, with WWAN antenna, DRM, western  
European  
• 1838-CTO  
• 1839-CTO  
System board assembly, 32 GB eMMC, 1 GB memory, with WWAN antenna, Non-DRM,  
worldwide  
• 1838-CTO  
• 1839-CTO  
4
4
4
04W3408  
04W3402  
04W2149  
N
N
N
System board assembly, 64 GB eMMC, 1 GB memory, with WWAN antenna, Non-DRM, China  
• 1838-CTO  
• 1839-CTO  
System board assembly, 64 GB eMMC, 1 GB memory, with WWAN antenna, DRM, U.K.  
• 1838-CTO  
• 1839-CTO  
System board assembly, 64 GB eMMC, 1 GB memory, with WWAN antenna, DRM, U.S.  
• 1838-CTO, 27x, 28x, 2Dx, 2Fx, 2Kx, 2Px, 2Rx, 2Ux, 3Dx, 3Ex, 3Fx, 3Gx, 3Zx, 42x, 43x,  
44x, 45x, 46x, 47x, 48x, 49x, 4Ex  
• 1839-CTO, 27x, 28x, 2Ex, 2Fx, 2Gx, 2Hx, 2Jx, 2Rx, 33x, 34x, 35x, 3Cx, 3Dx, 3Ex, 3Fx, 3Gx,  
4
4
04W3405  
04W3411  
N
N
System board assembly, 64 GB eMMC, 1 GB memory, with WWAN antenna, DRM, western  
European  
• 1838-CTO  
• 1839-CTO  
System board assembly, 64 GB eMMC, 1 GB memory, with WWAN antenna, Non-DRM,  
worldwide  
• 1838-CTO  
• 1839-CTO  
5
6
Microphone cable  
04W3316  
04W3317  
N
N
Base cover assembly, Wi-Fi only  
• 1838-CTO, 22x, 23x, 24x, 2Vx, 2Wx, 2Xx, 2Yx, 2Zx, 32x  
• 1839-CTO, 22x, 23x, 24x, 2Sx, 2Tx, 2Ux  
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Table 2. Parts list - Overall (continued)  
No. FRU  
FRU no.  
CRU  
ID  
6
04W3318 N  
Base cover assembly, 3G capable  
• 1838-CTO, 25x, 26x, 27x, 28x, 29x, 2Ax, 2Bx, 2Cx, 2Dx, 2Ex, 2Fx, 2Gx, 2Hx, 2Jx, 2Kx,  
2Lx, 2Mx, 2Nx, 2Px, 2Qx, 2Rx, 2Sx, 2Tx, 2Ux, 33x, 34x, 35x, 36x, 37x, 38x, 39x, 3Ax, 3Bx,  
3Cx, 3Dx, 3Ex, 3Fx, 3Gx, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Px, 3Qx, 3Rx, 3Sx, 3Tx, 3Ux,  
3Vx, 3Wx, 3Xx, 3Yx, 3Zx, 42x, 43x, 44x, 45x, 46x, 47x, 48x, 49x, 4Ax, 4Bx, 4Cx, 4Dx, 4Ex  
• 1839-CTO, 25x, 26x, 27x, 28x, 29x, 2Ax, 2Bx, 2Cx, 2Dx, 2Ex, 2Fx, 2Gx, 2Hx, 2Jx, 2Kx,  
2Lx, 2Mx, 2Nx, 2Px, 2Qx, 2Rx, 2Vx, 2Wx, 2Xx, 2Yx, 2Zx, 32x, 33x, 34x, 35x, 36x, 37x,  
38x, 39x, 3Ax, 3Bx, 3Cx, 3Dx, 3Ex, 3Fx, 3Gx  
7
8
ThinkPad Keyboard Folio Case OP (see “ThinkPad Tablet Keyboard Folio Case OP ” on page 55.)  
ThinkPad Tablet Dock OP  
04W2181 *  
• 1838-CTO, 28x, 29x, 2Ax, 2Hx, 2Jx, 2Kx, 2Wx, 2Yx, 2Zx, 32x, 35x, 37x, 38x, 3Ax, 3Bx,  
3Cx, 3Fx, 3Gx, 3Lx, 3Nx, 3Px, 3Qx, 3Ux, 3Wx, 3Xx, 3Yx, 44x, 46x, 47x, 48x, 49x  
• 1839-CTO, 28x, 2Cx, 2Dx, 2Gx, 2Hx, 2Jx, 2Kx, 2Ux, 2Xx, 32x, 35x, 38x, 3Bx, 3Ex, 3Gx  
9
04W3314  
04W3315  
N
N
N
Speaker assembly  
10  
11  
LCD cable  
42T4963  
42T4965  
Internal battery, 2 cell Li-ion (24 Wh)  
12 Rear-facing camera  
13 Front-facing camera  
04W2156  
04W2155  
04W3310  
N
N
*
14 ThinkPad Tablet Pen OP  
• 1838-CTO, 23x, 24x, 25x, 26x, 27x, 28x, 29x, 2Ax, 2Bx, 2Cx, 2Dx, 2Ex, 2Fx, 2Gx, 2Hx,  
2Jx, 2Kx, 2Sx, 2Tx, 2Ux, 2Vx, 2Wx, 2Xx, 2Yx, 2Zx, 32x, 33x, 34x, 35x, 36x, 37x, 38x,  
39x, 3Ax, 3Bx, 3Cx, 3Dx, 3Ex, 3Fx, 3Gx, 3Hx, 3Jx, 3Kx, 3Lx, 3Mx, 3Nx, 3Px, 3Qx, 3Rx,  
3Sx, 3Tx, 3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 3Zx, 42x, 43x, 44x, 45x, 46x, 47x, 48x, 49x, 4Ax,  
4Bx, 4Cx, 4Dx, 4Ex  
• 1839-CTO, 23x, 24x, 25x, 26x, 27x, 28x, 2Ax, 2Cx, 2Dx, 2Fx, 2Gx, 2Hx, 2Jx, 2Kx, 2Lx,  
2Mx, 2Nx, 2Px, 2Qx, 2Rx, 2Sx, 2Tx, 2Ux, 2Vx, 2Wx, 2Xx, 2Yx, 2Zx, 32x, 33x, 34x, 35x,  
36x, 37x, 38x, 39x, 3Ax, 3Bx, 3Cx, 3Dx, 3Ex, 3Fx, 3Gx  
14 ThinkPad Tablet Pen without Alkarine battery OP  
04W3398  
*
• 1838-CTO  
• 1839-CTO  
ThinkPad Tablet AC Charger (see “ThinkPad Tablet AC Charger” on page 57.)  
ThinkPad Tablet Keyboard Folio Case  
OP  
For the following models, a ThinkPad Tablet Keyboard Folio Case can be ordered separately from Lenovo.  
• 1838-CTO, 24x, 26x, 29x, 2Ax, 2Hx, 2Jx, 2Kx, 2Tx, 2Ux, 2Xx, 2Zx, 32x, 34x, 36x, 38x, 3Cx, 3Ex, 3Gx,  
3Kx, 3Mx, 3Px, 3Qx, 3Tx, 3Vx, 3Xx, 3Yx, 43x, 45x, 47x, 48x, 49x, 4Ax, 4Bx, 4Cx, 4Dx, 4Ex  
• 1839-CTO, 24x, 26x, 2Cx, 2Dx, 2Fx, 2Gx, 2Hx, 2Jx, 2Kx, 2Lx, 2Nx, 2Qx, 2Tx, 2Wx, 2Zx, 34x, 37x,  
3Ax, 3Dx, 3Fx, 3Gx  
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Table 3. Parts list - ThinkPad Tablet Keyboard Folio Case OP  
Language  
P/N  
CRU ID  
Arabic  
04W2159  
04W2180  
04W2158  
04W2160  
04W2161  
04W2163  
04W2164  
04W2165  
04W2247  
04W2166  
04W2175  
04W2178  
04W2179  
04W2167  
04W2168  
04W2169  
04W2170  
04W2162  
04W2171  
04W2177  
04W2176  
04W2172  
04W2173  
04W2157  
04W2174  
**  
Brazilian Portuguese  
Canadian French (058)  
Czech  
Danish  
French  
German  
Hebrew  
Indian English  
Italian  
Japanese  
Korean  
Latin American Spanish  
Norwegian  
Portuguese  
Russian  
Swedish, Finnish  
Spanish  
Swiss  
Thai  
Traditional Chinese  
Turkish  
U.K. English  
U.S. English  
U.S. English (International, with a Euro symbol)  
Miscellaneous parts  
Table 4. Parts list - Miscellaneous parts  
FRU  
P/N  
CRU  
ID  
04W3312  
N
Screw kit:  
• M2 × 2 mm, flat-head, (1)  
• M2 × 2.5 mm, flat-head, (21)  
• M2 × 3 mm, flat-head, (8)  
• M2 × 4 mm, flat-head, (4)  
• M2 × 6 mm, flat-head, (10)  
• M2 × 8mm, flat-head, (4)  
• M2 × 9mm, flat-head, (2)  
04W3313  
04W3311  
N
N
System miscellaneous parts kit  
Button kit  
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Table 4. Parts list - Miscellaneous parts (continued)  
FRU  
P/N  
CRU  
ID  
Rubber kit  
04W1783  
04W3412  
N
N
Switch board  
ThinkPad Tablet AC Charger  
A ThinkPad Tablet AC Charger for a specific country or region usually is available only in that country or  
region.  
ThinkPad Tablet AC Charger  
Table 5. Parts list - ThinkPad Tablet AC Charger (charger head)  
FRU  
FRU no.  
CRU ID  
45N0158  
*
ThinkPad Tablet AC Charger (charger head)  
Table 6. Parts list - ThinkPad Tablet AC Charger (snap-in prongs)  
FRU  
FRU no.  
45N0160  
45N0162  
45N0164  
45N0166  
45N0168  
45N0170  
45N0172  
45N0174  
45N0176  
45N0178  
CRU ID  
*
Snap-in prongs for U.S.  
Snap-in prongs for European countries  
Snap-in prongs for U.K.  
Snap-in prongs for China  
Snap-in prongs for Australia  
Snap-in prongs for Argentine  
Snap-in prongs for Brazil  
Snap-in prongs for Korea  
Snap-in prongs for India  
Snap-in prongs for South Africa  
ThinkPad Tablet Dock ac power adapter  
OP  
For the following models, an ac power adapter can be ordered separately from Lenovo for a specific  
country or region.  
• 1838-CTO, 28x, 29x, 2Ax, 2Hx, 2Jx, 2Kx, 2Wx, 2Yx, 2Zx, 32x, 35x, 37x, 38x, 3Ax, 3Bx, 3Cx, 3Fx, 3Gx,  
3Lx, 3Nx, 3Px, 3Qx, 3Ux, 3Wx, 3Xx, 3Yx, 44x, 46x, 47x, 48x, 49x  
• 1839-CTO, 28x, 2Cx, 2Dx, 2Gx, 2Hx, 2Jx, 2Kx, 2Ux, 2Xx, 32x, 35x, 38x, 3Bx, 3Ex, 3Gx  
Table 7. Parts list - 2-pin ThinkPad Tablet Dock ac power adapter OP  
FRU  
FRU no.  
42T5282  
42T4423  
42T4419  
CRU ID  
*
2-pin (65 W, 20 V) adapter (models CTO, xxE, xxF, xxJ, xxL, xxP, xxS, xxU, xxY)  
2-pin (65 W, 20 V) adapter (models CTO, xxE, xxF, xxJ, xxL, xxP, xxS, xxU, xxY)  
2-pin (65 W, 20 V) adapter (models CTO, xxE, xxF, xxJ, xxL, xxP, xxS, xxU, xxY)  
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Table 8. Parts list - 3-pin ThinkPad Tablet Dock ac power adapter OP  
FRU  
FRU no.  
42T5283  
42T4421  
42T4417  
CRU ID  
*
3-pin (65 W, 20 V) adapter (models CTO, xxA, xxB, xxG, xxH, xxK, xxM, xxQ, xxT, xxV)  
3-pin (65 W, 20 V) adapter (models CTO, xxA, xxB, xxG, xxH, xxK, xxM, xxQ, xxT, xxV)  
3-pin (65 W, 20 V) adapter (models CTO, xxA, xxB, xxG, xxH, xxK, xxM, xxQ, xxT, xxV)  
Micro-USB cable  
Table 9. Parts list - Micro-USB cable  
FRU  
FRU no.  
04W2153  
CRU  
ID  
*
Micro-USB cable  
ThinkPad Tablet Dock power cord cable  
OP  
For the following models, a ThinkPad Tablet Dock power cord cable can be ordered separately from Lenovo  
for a specific country or region.  
• 1838-CTO, 28x, 29x, 2Ax, 2Hx, 2Jx, 2Kx, 2Wx, 2Yx, 2Zx, 32x, 35x, 37x, 38x, 3Ax, 3Bx, 3Cx, 3Fx, 3Gx,  
3Lx, 3Nx, 3Px, 3Qx, 3Ux, 3Wx, 3Xx, 3Yx, 44x, 46x, 47x, 48x, 49x  
• 1839-CTO, 28x, 2Cx, 2Dx, 2Gx, 2Hx, 2Jx, 2Kx, 2Ux, 2Xx, 32x, 35x, 38x, 3Bx, 3Ex, 3Gx  
Table 10. Parts list - 2-pin ThinkPad Tablet Dock power cord cable OP  
FRU no.  
Country or region  
CRU  
ID  
Argentina  
• models -CTO, xxY  
42T5020 42T5105  
42T5180 42T5183  
42T5008 42T5093  
42T5014 42T5099  
*
Brazil  
• models -CTO, xxP  
Canada, U.S.  
• models -CTO, xxF, xxL, xxS, xxU  
Japan  
• models -CTO, xxE, xxJ  
Table 11. Parts list - 3-pin ThinkPad Tablet Dock power cord cable OP  
FRU no.  
Country or region  
CRU  
ID  
Australia, New Zealand  
• models -CTO, xxM  
42T5050 42T5135  
42T5056 42T5141  
42T5004 42T5089  
42T5065 42T5150  
42T5041 42T5126  
42T5029 42T5114  
*
Bangladesh, Sri Lanka, South Africa  
• models -CTO, xxG  
Canada, U.S.  
• models -CTO, xxG, xxT  
China (P.R.C.) (other than Hong Kong S.A.R.)  
• models -CTO, xxC  
Denmark  
• models -CTO, xxG  
European countries  
• models -CTO, xxG  
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Table 11. Parts list - 3-pin ThinkPad Tablet Dock power cord cable OP (continued)  
FRU no.  
Country or region  
CRU  
ID  
India  
42T5083 42T5168  
42T5062 42T5147  
42T5047 42T5132  
42T5077 42T5162  
42T5044 42T5129  
42T5071 42T5156  
42T5035 42T5120  
• models -CTO, xxQ  
Israel  
• models -CTO, xxG  
Italy  
• models -CTO, xxG  
Korea  
• models -CTO, xxK  
Switzerland  
• models -CTO, xxG  
Taiwan  
• models -CTO, xxV  
U.K., China (Hong Kong S.A.R.)  
• models -CTO, xxB, xxG, xxH  
Common service tools  
Table 12. Parts list - Common service tools  
Tool  
P/N  
95F3598  
Screwdriver kit  
1650840  
93F2838  
00P6967  
08K7159  
40Y8704  
42W7820  
1/4" drive spinner handle  
1/4" Sq. to 1/4" hex torx adapter  
TR7-TR-10 tamper resistant torx bits  
Removal tool antenna RF connector  
USB cable  
Test card for integrated Smart Card  
Notices  
Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult  
your local Lenovo representative for information on the products and services currently available in your  
area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that  
Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service  
that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user's  
responsibility to evaluate and verify the operation of any other product, program, or service.  
Lenovo may have patents or pending patent applications covering subject matter described in this  
document. The furnishing of this document does not give you any license to these patents. You can send  
license inquiries, in writing, to:  
Lenovo (United States), Inc.  
1009 Think Place - Building One  
Morrisville, NC 27560  
U.S.A.  
Attention: Lenovo Director of Licensing  
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LENOVO PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS  
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,  
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow  
disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply  
to you.  
This information could include technical inaccuracies or typographical errors. Changes are periodically  
made to the information herein; these changes will be incorporated in new editions of the publication.  
Lenovo may make improvements and/or changes in the product(s) and/or the program(s) described in this  
publication at any time without notice.  
The products described in this document are not intended for use in implantation or other life support  
applications where malfunction may result in injury or death to persons. The information contained in this  
document does not affect or change Lenovo product specifications or warranties. Nothing in this document  
shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo  
or third parties. All information contained in this document was obtained in specific environments and is  
presented as an illustration. The result obtained in other operating environments may vary.  
Lenovo may use or distribute any of the information you supply in any way it believes appropriate without  
incurring any obligation to you.  
Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not in  
any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of  
the materials for this Lenovo product, and use of those Web sites is at your own risk.  
Any performance data contained herein was determined in a controlled environment. Therefore, the result  
obtained in other operating environments may vary significantly. Some measurements may have been  
made on development-level systems and there is no guarantee that these measurements will be the same  
on generally available systems. Furthermore, some measurements may have been estimated through  
extrapolation. Actual results may vary. Users of this document should verify the applicable data for their  
specific environment.  
Electronic emission notices  
For electronic emission information on Class B digital devices, refer to the corresponding information in  
the User Guide.  
Trademarks  
The following terms are trademarks of Lenovo in the United States, other countries or both:  
Lenovo  
ThinkPad  
TrackPoint  
Other company, product, or service names may be the trademarks or service marks of others.  
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Part Number: 0A96158  
(1P) P/N: 0A96158  
*0A96158*  
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