X1 Titanium Gen1 Hmm En

Lenovo ThinkPad X1

X1 Titanium Gen 1

Hardware Maintenance Manual

Lenovo

Note: Before using this information and the product it supports, be sure to read the general information under Appendix A “Notices” on page 77.

Third Edition (August 2023)

© Copyright Lenovo 2021, 2023.

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-35F-05925.

Contents

About this manual . . .

Hibernation mode ..... 34
Symptom-to-FRU index ..... 34
Numeric error codes ..... 35
Error messages ..... 37
Beep symptoms ..... 37
No-beep symptoms ..... 39
LCD-related symptoms ..... 39
Intermittent problems ..... 40
Undetermined problems ..... 40
Chapter 5. Special keys ..... 41
Chapter 6. Locations ..... 43
Locating computer controls, connectors, and indicators ..... 43
Front view ..... 43
Side view ..... 44
Bottom view ..... 45
Locating FRUs and CRUs ..... 45
Major FRUs ..... 47
Miscellaneous parts and other FRUs ..... 49
Connector and cable guide ..... 49
Looking up FRU information ..... 50
Chapter 7. FRU replacement notices ..... 51
Service tool kit ..... 51
Screw notices ..... 51
Retaining serial numbers ..... 52
Restoring the serial number of the system unit ..... 52
Retaining the UUID ..... 53
Reading or writing the ECA information ..... 54
Chapter 8. Removing or replacing a FRU ..... 55
General guidelines ..... 55
Before servicing the computer ..... 56
Removing external devices ..... 56
Disabling the built-in battery ..... 56
Removing the nano-SIM card (for selected models) ..... 56
Removing a major FRU ..... 56
1010 Base cover assembly ..... 57
1020 2242 M.2 solid-state drive ..... 59
1030 Wireless-WAN card (for selected models) ..... 60
1040 Thermal fan assembly ..... 61

1050 Audio board with cable . . .

1120 Antenna assembly (for models with wireless-WAN card) ..... 68
1130 SSD-WWAN board ..... 70
1140 System board ..... 71
1150 Speaker assembly ..... 72
1160 LCD unit ..... 73
1170 Keyboard bezel assembly with keyboard ..... 75
Appendix A. Notices.....77

About this manual

This manual contains service and reference information for ThinkPad X1 Titanium Gen 1, machine types (MT): 20QA and 20QB.

Use this manual along with the advanced diagnostic tests to troubleshoot problems.

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.

• Depending on the model, some hardware configuration and software programs might not be available on the computer. Some statements in this manual might not be applicable to the computer.

• Before servicing a ThinkPad product, be sure to read all the information under Chapter 1 “Safety information” on page 1 and Chapter 2 “Important service information” on page 21.

Chapter 1. Safety information

This chapter presents the following safety information that you must be familiar with before you service a ThinkPad notebook computer.

• “General safety” on page 1

• “Electrical safety” on page 1

• “Safety inspection guide” on page 2

• “Handling devices that are sensitive to electrostatic discharge” on page 3

• “Grounding requirements” on page 4

• "Safety notices (multilingual translations)" 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 all covers correctly before returning the machine to the customer.

• Fan louvers on the machine help to prevent overheating of internal components. Do