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HP ENVY Ultrabook 4-1043cl HP Envy 4 - Maintenance and Service Guide - Page 68

Keyboard, Remove the Power button board

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5. Remove the base enclosure (see Base enclosure on page 33). 6. Disconnect the battery cable (see Battery on page 35). Remove the Power button board and cable: 1. Turn the top cover upside down, with the back edge toward you. 2. Remove the 2 Phillips PM 2.0x3x0 screws securing the Power button board to the top cover (1). 3. Remove the Power button board (2). NOTE: The Power button board's cable is attached to the board. Keyboard NOTE: The keyboard spare part kit includes a keyboard cable. For use in country or region: Keyboard in black finish: For use in the United States For use in Japan For use in South Korea For use in France For use in Latin America Spare part number: 686836-001 686836-291 686836-AD1 686836-051 686836-161 For use in country or region: Spare part number: For use in Thailand 686836-281 For use in Taiwan 686836-AB1 For use in the United Kingdom and 686836-031 Singapore For use in Italy 686836-061 For use in Russia 686836-251 60 Chapter 4 Removal and replacement procedures

Section	Page
Product description	9
External component identification	12
Display	12
Button, speakers, and subwoofer	13
Keys	14
Lights	15
TouchPad	16
Left side	16
Right side	18
Bottom	19
Illustrated parts catalog	20
Service tag	20
Computer major components	21
Mass storage devices	26
Miscellaneous parts	27
Sequential part number listing	27
Removal and replacement procedures	33
Preliminary replacement requirements	33
Tools required	33
Service considerations	33
Plastic parts	33
Cables and connectors	33
Drive handling	34
Grounding guidelines	34
Electrostatic discharge damage	34
Packaging and transporting guidelines	36
Workstation guidelines	36
Equipment guidelines	37
Component replacement procedures	37
Service label	38
Display panel	39
Base enclosure	41
Battery	43
Hard drive	45
RTC battery	48
Memory module	49
WLAN module	51
TouchPad module	53
Fan	54
System board	55
Heat sink	59
RJ-45 module cover	60
Media card reader assembly (smart card reader)	61
Subwoofer	62
Security bracket	63
USB/Audio board	64
Power connector cable	65
Speakers	66
Power button board	67
Keyboard	68
Top cover	71
WLAN antenna cables	72
Display panel cable assembly	73
Webcam assembly	74
Display hinges and hinge covers	75
Setup Utility (BIOS) and System Diagnostics	77
Using Setup Utility	77
Starting Setup Utility	77
Changing the language of Setup Utility	77
Navigating and selecting in Setup Utility	78
Displaying system information	78
Restoring factory settings in Setup Utility	79
Exiting Setup Utility	79
Updating the BIOS	79
Determining the BIOS version	80
Downloading a BIOS update	80
Using System Diagnostics	81
Specifications	82
Computer specifications	82
14.0-inch display specifications	82
Backup and recovery	84
Restoring the system	84
Creating restore media	84
Performing a system recovery	85
Using the dedicated recovery partition	85
Restoring using the restore media	87
Changing the computer boot order	87
Backing up and recovering your information	87
Using Windows Backup and Restore	88
Using Windows system restore points	89
When to create restore points	89
Create a system restore point	89
Restore to a previous date and time	89
Power cord set requirements	90
Requirements for all countries	90
Requirements for specific countries and regions	90
Recycling	92