HP 420 Compaq 320, 321, 420, 421, 620 and 621 Notebook PCs HP 420 and 620 Not - Page 92

Bluetooth module, Cables, on Battery, Palm rest, Keyboard, Top cover

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Bluetooth module NOTE: The Bluetooth module spare part number is 537921-002 and is used in all countries and regions except Japan and Asia Pacific countries and regions. The Bluetooth module cable is included in the Cable Kit, spare part number 605793-001. See Cables on page 34 for more Cable Kit spare part number information. Before removing the Bluetooth module, 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 53). 5. Remove the palm rest (see Palm rest on page 68). 6. Remove the keyboard (see Keyboard on page 73). 7. Remove the top cover (see Top cover on page 77). Remove the Bluetooth module on 39.6-cm (15.6-in) computers: 1. Position the computer right-side up with the front toward you. 2. Disconnect the Bluetooth cable (1) from the system board and remove the antenna (2) from the base enclosure. The antenna is held to the base enclosure with adhesive. Remove the Bluetooth module on 35.6-cm (14.0-in) and 33.8-cm (13.3-in) computers: 1. Position the computer right-side up with the front toward you. 84 Chapter 4 Removal and replacement procedures

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Bluetooth module
NOTE:
The Bluetooth module spare part number is 537921-002 and is used in all countries and
regions except Japan and Asia Pacific countries and regions. The Bluetooth module cable is included in
the Cable Kit, spare part number 605793-001. See
Cables
on page
34
for more Cable Kit spare part
number information.
Before removing the Bluetooth module, 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
53
).
5.
Remove the palm rest (see
Palm rest
on page
68
).
6.
Remove the keyboard (see
Keyboard
on page
73
).
7.
Remove the top cover (see
Top cover
on page
77
).
Remove the Bluetooth module on
39.6-cm
(15.6-in) computers:
1.
Position the computer right-side up with the front toward you.
2.
Disconnect the Bluetooth cable
(1)
from the system board and remove the antenna
(2)
from the
base enclosure. The antenna is held to the base enclosure with adhesive.
Remove the Bluetooth module on
35.6-cm
(14.0-in) and
33.8-cm
(13.3-in) computers:
1.
Position the computer right-side up with the front toward you.
84
Chapter 4
Removal and replacement procedures