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HP mt20 Maintenance and Service Guide - Page 42

Keyboard, Disconnect the power from the computer

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Keyboard In this section, the first table provides the main spare part number for the keyboards. The second table provides the country codes. Description Keyboard, no backlight Keyboard, backlit Spare part number 906764-xxx 906763-xxx For use in country or region Belgium Brazil Bulgaria Canada Czech Republic and Slovakia Denmark, Finland, and Norway France Germany Greece Hungary Spare part number -A41 -201 -261 -DB1 -FL1 For use in country or region Iceland India Israel Italy Japan -DH1 Latin America -051 The Netherlands -041 Northern Africa -151 Portugal -211 Russia Spare part number -DD1 -D61 -BB1 -061 -291 For use in country or region Saudi Arabia Slovenia South Korea Spain Switzerland -161 Taiwan -B31 -FP1 -131 -251 Thailand Turkey United Kingdom United States Spare part number -171 -BA1 -AD1 -071 -BG1 -AB1 -281 -141 -031 -001 Before removing the keyboard, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Place the computer in "Battery Safe mode" (Battery Safe mode on page 25). 3. Disconnect all external devices connected to the computer. 4. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer. 5. Remove the main service door (see Service door on page 26). Remove the keyboard: 1. Remove the 2 Phillips PM2.5×5.0 screws that secure the keyboard to the computer (1). 32 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts

Section	Page
Product description	11
Components	14
Right	14
Left	15
Display	16
Top	17
TouchPad	17
Lights	18
Buttons and speakers	19
Special function keys	20
Using the hot keys	21
Bottom	22
Labels	23
Illustrated parts catalog	24
Computer major components	24
Cable Kit	26
Display components	27
Plastics Kit	28
Miscellaneous parts	29
Removal and replacement procedures preliminary requirements	31
Tools required	31
Service considerations	31
Plastic parts	31
Cables and connectors	31
Grounding guidelines	32
Electrostatic discharge damage	32
Packaging and transporting guidelines	33
Workstation guidelines	33
Equipment guidelines	34
Removal and replacement procedures for Customer Self-Repair parts	35
Component replacement procedures	35
Battery Safe mode	35
Service door	36
Memory modules	37
WLAN/Bluetooth combo card	39
M.2 solid-state drive	41
Keyboard	42
Removal and replacement procedures for Authorized Service Provider parts	45
Component replacement procedures	45
Display subcomponents (bezel, webcam, panel)	45
Top cover	49
Power button board	52
Function board	54
Speaker assembly	56
TouchPad assembly	57
USB/audio board	59
Battery	60
Fan	62
System board	64
RTC battery	67
Heat sink assembly	68
Display assembly	70
Power connector and cable	76
Computer Setup (BIOS), TPM, and HP Sure Start	77
Using Computer Setup	77
Starting Computer Setup	77
Navigating and selecting in Computer Setup	77
Restoring factory settings in Computer Setup	77
Updating the BIOS	78
Determining the BIOS version and using Setup to update BIOS	78
Downloading a BIOS update	79
Changing the boot order using the f9 prompt	79
TPM BIOS settings (select products only)	80
Using HP Sure Start (select products only)	80
Using HP PC Hardware Diagnostics (UEFI) (Windows only)	81
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device	81
Diagnostics and troubleshooting	83
LEDs	83
Wake-on LAN	84
Power-On Sequence	84
Power-on diagnostic tests	84
Interpreting POST diagnostic front panel LEDs and audible codes	85
POST numeric codes and text messages	87
Troubleshooting	89
Basic troubleshooting	89
Diskless (No-Flash) unit troubleshooting	90
Configuring a PXE server	91
HP ThinUpdate	92
Device management	93
Specifications	94
Computer specifications	94
35.6-cm (14.0-in) display specifications	95
Solid-state drive specifications	95
Statement of memory volatility	96
Nonvolatile memory usage	99
Questions and answers	101
Using HP Sure Start (select models only)	102
Power cord set requirements	103
Requirements for all countries and regions	103
Requirements for specific countries and regions	103
Recycling	105

Match case Limit results 1 per page

Keyboard

In this section, the

ﬁrst

table provides the main spare part number for the keyboards. The second table

provides the country codes.

Description

Spare part number

Keyboard, no backlight

906764-xxx

Keyboard, backlit

906763-xxx

For use in country

or region

Spare part

number

For use in country

or region

Spare part

number

For use in country

or region

Spare part

number

Belgium

-A41

Iceland

-DD1

Saudi Arabia

-171

Brazil

-201

India

-D61

Slovenia

-BA1

Bulgaria

-261

Israel

-BB1

South Korea

-AD1

Canada

-DB1

Italy

-061

Spain

-071

Czech Republic

and Slovakia

-FL1

Japan

-291

Switzerland

-BG1

Denmark, Finland, and

Norway

-DH1

Latin America

-161

Taiwan

-AB1

France

-051

The Netherlands

-B31

Thailand

-281

Germany

-041

Northern Africa

-FP1

Turkey

-141

Greece

-151

Portugal

-131

United Kingdom

-031

Hungary

-211

Russia

-251

United States

-001

Before removing the keyboard, follow these steps:

Shut down the computer. If you are unsure whether the computer is

oﬀ

or in Hibernation, turn the

computer on, and then shut it down through the operating system.

Place the computer in “Battery Safe mode” (

Battery Safe mode

on page

Disconnect all external devices connected to the computer.

Disconnect the power from the computer by

ﬁrst

unplugging the power cord from the AC outlet, and

then unplugging the AC adapter from the computer.

Remove the main service door (see

Service door

on page

Remove the keyboard:

Remove the 2 Phillips PM2.5×5.0 screws that secure the keyboard to the computer

(1)

Chapter 5

Removal and replacement procedures for Customer Self-Repair parts