HP Pavilion 15-bj000 Maintenance and Service Guide - Page 56

Fan

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Fan Description Fan Spare part number 833139-001 NOTE: To properly ventilate the computer, allow at least 7.6 cm (3.0 in) of clearance on the left side of the computer. The computer uses an electric fan for ventilation. The fan is controlled by a temperature sensor and is designed to turn on automatically when high temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software requirements. Exhaust air is displaced through the ventilation grill located on the left side of the computer. Before removing the fan/heat sink assembly, 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 34). 5. Remove the optical drive (see Optical drive on page 35). 6. Remove the bottom cover (see Bottom cover on page 38). To remove the fan: 1. Position the computer upright and open it. 2. Disconnect the fan cable (1) from the system board. 3. Remove the two Phillips PM3.0×3.0 screws (2) that secure the fan to the computer. 4. Lift the Mylar tape that secures the fan to the speaker (3). 48 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts

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Fan
Description
Spare part number
Fan
833139-001
NOTE:
To properly ventilate the computer, allow at least
7.6 cm
(3.0 in) of clearance on the left side of the
computer. The computer uses an electric fan for ventilation. The fan is controlled by a temperature sensor and
is designed to turn on automatically when high temperature conditions exist. These conditions are
affected
by
high external temperatures, system power consumption, power management/battery conservation
configurations,
battery fast charging, and software requirements. Exhaust air is displaced through the
ventilation grill located on the left side of the computer.
Before removing the fan/heat sink assembly, 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
34
).
5.
Remove the optical drive (see
Optical drive
on page
35
).
6.
Remove the bottom cover (see
Bottom cover
on page
38
).
To remove the fan:
1.
Position the computer upright and open it.
2.
Disconnect the fan cable
(1)
from the system board.
3.
Remove the two Phillips PM3.0×3.0 screws
(2)
that secure the fan to the computer.
4.
Lift the Mylar tape that secures the fan to the speaker
(3)
.
48
Chapter 6
Removal and replacement procedures for Authorized Service Provider parts