HP TouchSmart tx2-1109au HP TouchSmart tx2 Notebook PC - Maintenance and Servi - Page 75

Fan/heat sink assembly, Display assembly see

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Fan/heat sink assembly Description Fan/heat sink assembly (includes thermal material) Spare part number 487925-001 NOTE: To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the right side and rear panel 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 cord. 4. Remove the battery (see Battery on page 38). 5. Remove the following components: a. Hard drive (see Hard drive on page 40) b. Memory module compartment cover (see Memory module on page 44) c. Optical drive (see Optical drive on page 43) d. Keyboard (see Keyboard on page 49) e. Switch cover (see Switch cover on page 51) f. Display assembly (see Display assembly on page 53) g. Top cover (see Top cover on page 56) h. Power switch assembly (see Power switch assembly on page 58) i. System board (see System board on page 61) Remove the fan/heat assembly: 1. Disconnect the fan cable (1) from the system board. 2. Remove the four Phillips PM2.0×4.0 screws (2) that secure the fan/heat sink assembly to the system board. Component replacement procedures 67

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Fan/heat sink assembly
Description
Spare part number
Fan/heat sink assembly (includes thermal material)
487925-001
NOTE:
To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the right
side and rear panel 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 cord.
4.
Remove the battery (see
Battery
on page
38
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
40
)
b.
Memory module compartment cover (see
Memory module
on page
44
)
c.
Optical drive (see
Optical drive
on page
43
)
d.
Keyboard (see
Keyboard
on page
49
)
e.
Switch cover (see
Switch cover
on page
51
)
f.
Display assembly (see
Display assembly
on page
53
)
g.
Top cover (see
Top cover
on page
56
)
h.
Power switch assembly (see
Power switch assembly
on page
58
)
i.
System board (see
System board
on page
61
)
Remove the fan/heat assembly:
1.
Disconnect the fan cable
(1)
from the system board.
2.
Remove the four Phillips PM2.0×4.0 screws
(2)
that secure the fan/heat sink assembly to the
system board.
Component replacement procedures
67