Compaq 321 Compaq 320, 321, 420, 421, 620, 621 Notebook PCs and HP 420, 620 No - Page 90

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 31 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 49). 5. Remove the palm rest (see Palm rest on page 64). 6. Remove the keyboard (see Keyboard on page 69). 7. Remove the top cover (see Top cover on page 73). 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. 80 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
31
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
49
).
5.
Remove the palm rest (see
Palm rest
on page
64
).
6.
Remove the keyboard (see
Keyboard
on page
69
).
7.
Remove the top cover (see
Top cover
on page
73
).
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.
80
Chapter 4
Removal and replacement procedures