Compaq Presario CQ70-100 HP G70 Notebook PC Compaq Presario CQ70 Notebook PC - - Page 70

USB board

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Removal and replacement procedures USB board Description USB board USB board cable (includes num lock LED) Spare part number 486633-001 489123-001 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 4-6). 5. Remove the following components: a. Optical drive (see "Optical drive" on page 4-7) b. Hard drive (see "Hard drive" on page 4-9) c. Keyboard (see "Keyboard" on page 4-15) d. Keyboard cover (see "Keyboard cover" on page 4-17) e. Power button board (see "Power button board" on page 4-19) f. Display assembly (see "Display assembly" on page 4-20) g. Top cover (see "Top cover" on page 4-26) Remove the USB board: 1. Disconnect the USB board cable 1 from the system board. 2. Disconnect the num lock LED cable 2, and then remove the USB board 3. Reverse this procedure to install a USB board. 4-34 Maintenance and Service Guide

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Maintenance and Service Guide
Removal and replacement procedures
USB board
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 4-6
).
5. Remove the following components:
a.
Optical drive (see
“Optical drive” on page 4-7
)
b.
Hard drive (see
“Hard drive” on page 4-9
)
c.
Keyboard (see
“Keyboard” on page 4-15
)
d.
Keyboard cover (see
“Keyboard cover” on page 4-17
)
e.
Power button board (see
“Power button board” on page 4-19
)
f.
Display assembly (see
“Display assembly” on page 4-20
)
g.
Top cover (see
“Top cover” on page 4-26
)
Remove the USB board:
1. Disconnect the USB board cable
1
from the system board.
2. Disconnect the num lock LED cable
2
, and then remove the USB board
3
.
Reverse this procedure to install a USB board.
Description
Spare part number
USB board
486633-001
USB board cable (includes num lock LED)
489123-001