HP ProBook 4525s HP ProBook 4525s Notebook PC - Maintenance and Service Guide - Page 64

Thermal shield, Remove the two PM2.5×3.0 screws

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Reverse this procedure to install the speakers. Thermal shield NOTE: The spare part number for the thermal shield is 617451-001. Before removing the thermal shield, 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 45). 5. Remove the switch cover and keyboard (see Switch cover and keyboard on page 46). NOTE: It is not necessary to disconnect the keyboard cable from the system board before removing the thermal shield. Remove the thermal shield on the 15.6-in computer: 1. Position the computer right-side up with the front toward you. 2. Remove the two PM2.5×3.0 screws (1 and 2) from the thermal shield. 3. Raise the thermal shield (3) and remove it (4) from the computer. 56 Chapter 4 Removal and replacement procedures

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Reverse this procedure to install the speakers.
Thermal shield
NOTE:
The spare part number for the thermal shield is 617451-001.
Before removing the thermal shield, 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
45
).
5.
Remove the switch cover and keyboard (see
Switch cover and keyboard
on page
46
).
NOTE:
It is not necessary to disconnect the keyboard cable from the system board before
removing the thermal shield.
Remove the thermal shield on the 15.6-in computer:
1.
Position the computer right-side up with the front toward you.
2.
Remove the two PM2.5×3.0 screws
(1 and 2)
from the thermal shield.
3.
Raise the thermal shield
(3)
and remove it
(4)
from the computer.
56
Chapter 4
Removal and replacement procedures