E595 Mm En

E590, R590, and E595

Hardware Maintenance Manual

ThinkPad Lenovo

Note: Before using this information and the product it supports, be sure to read the general information under Appendix A “Notices” on page 91.

LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to 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 ..... iii
Chapter 1. Safety information ..... 1
General safety ..... 1
Electrical safety ..... 1
Safety inspection guide ..... 3
Handling devices that are sensitive to electrostatic discharge ..... 3
Grounding requirements ..... 4
Safety notices (multilingual translations) ..... 4
Chapter 2. Important service information ..... 21
Strategy for replacing FRUs ..... 21
Strategy for replacing a hard disk drive or a solid-state drive ..... 21
Important notice for replacing a system board ..... 22
How to use error codes ..... 22
Strategy for replacing FRUs for CTO, special-bid, and standard models ..... 22
Product definition ..... 22
FRU identification ..... 23
Chapter 3. General checkout ..... 25
What to do first ..... 25
Checkout guide ..... 26
Diagnosing problems ..... 26
Quick test programs ..... 26
UEFI diagnostic program ..... 27
Bootable diagnostic programs ..... 27
Power system checkout ..... 28
Checking the ac power adapter ..... 28
Checking operational charging ..... 29
Checking the built-in battery and operational charging ..... 29
Checking the coin-cell battery ..... 30
Chapter 4. Related service information ..... 31
Recovery overview for the Windows 10 operating system ..... 31
Resetting your computer ..... 31
Using advanced startup options ..... 31
Recovering your operating system if Windows 10 fails to start ..... 32
Creating and using a recovery USB drive ..... 32
Power-on password ..... 33

Hard disk password ..... 33
Supervisor password ..... 33
How to remove the power-on password ..... 34
How to remove the hard disk password ..... 34
Power management ..... 35
Sleep mode ..... 35
Hibernation mode ..... 35
Symptom-to-FRU index ..... 36
Numeric error codes ..... 36
Error messages ..... 38
Beep errors ..... 38
No-beep symptoms ..... 40
LCD-related symptoms ..... 40
Intermittent problems ..... 40
Undetermined problems ..... 41
Chapter 5. Special keys ..... 43
Chapter 6. Locations ..... 45
Locating computer controls, connectors, and indicators ..... 45
Front ..... 45
Base ..... 45
Left ..... 46
Right ..... 46
Locating FRUs and CRUs ..... 46
Major FRUs and CRUs ..... 48
LCD FRUs and CRUs ..... 50
Miscellaneous parts ..... 51
Connector and cable guide ..... 51
Looking up FRU information ..... 53
Chapter 7. FRU replacement notices ..... 55
Service tool kit ..... 55
Screw notices ..... 55
Retaining serial numbers ..... 56
Restoring the serial number of the system unit ..... 56
Retaining the UUID ..... 57
Chapter 8. Removing or replacing a FRU ..... 59
General guidelines ..... 59
Before servicing the computer ..... 60
Disabling the built-in battery ..... 60
Removing the microSD card ..... 60
1010 Base cover assembly ..... 60

1020 Built-in battery . . .

1160 LCD unit ..... 81
1170 Keyboard bezel assembly ..... 83
2010 LCD bezel ..... 83
2020 LCD panel ..... 84
2030 LCD hinges ..... 85
2040 Camera/microphone module ..... 85
2050 LCD cable ..... 86
2060 Wireless-LAN antenna assembly ..... 87
2070 LCD cover assembly ..... 89
Appendix A. Notices.....91
Appendix B. Abbreviation and acronym table ..... 93

About this manual

This manual contains service and reference information for the following ThinkPad $ ^{\circledR} $ product:

Machine types (MT) 20NB and 20NC

Machine type (MT) 20ND

Machine type (MT) 20NF

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. 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 need to 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 3

• “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. Ensure 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