USB board
Description
Spare part number
USB board (includes cable)
749649-001
Before removing the USB board, 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.
Disconnect all external devices connected to the computer.
3.
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.
4.
Remove the battery (see
Battery on page 31
), and then remove the following components:
●
Keyboard (see
Keyboard on page 35
)
●
Top cover (see
Top cover on page 43
)
●
WLAN module (see
WLAN module on page 51
)
●
System board (see
System board on page 56
)
●
Hard drive (see
Hard drive on page 49
)
To remove the USB board:
1.
Position the computer upright.
2.
Disconnect the USB board cable from the system board
(1)
.
3.
Remove the tape that secures it to the cable to the base enclosure
(2)
.
4.
Remove the Phillips PM2.5×5.0 screw
(3)
that secures the USB board to the base enclosure.
5.
Remove the USB board
(4)
.
Reverse this procedure to install the USB board.
Component replacement procedures
59
Summary of Contents for 255 G3
Page 1: ...HP 255 G3 Notebook PC Maintenance and Service Guide ...
Page 4: ...iv Safety warning notice ...
Page 12: ...4 Chapter 1 Product description ...
Page 34: ...26 Chapter 3 Illustrated parts catalog ...
Page 46: ...38 Chapter 5 Removal and replacement procedures for Customer Self Repair parts ...
Page 80: ...72 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...
Page 84: ...76 Chapter 7 Using Setup Utility BIOS and HP PC Hardware Diagnostics UEFI in Windows 8 1 ...
Page 88: ...80 Chapter 8 Using Setup Utility BIOS and System Diagnostics in Windows 7 ...
Page 114: ...106 Chapter 14 Statement of Volatility ...