HP EliteBook 8770w Manual

							5.Remove the service access cover (see Service access cover on page 52).
6.Remove the optical drive (see 
Optical drive on page 63) or upgrade bay hard drive (see Upgrade
bay hard drive on page 66).
NOTE:The optical drive or hard drive carrier in the upgrade bay must be removed in order to
remove the keyboard.
Remove the keyboard:
1.Position the computer with the front toward you.
2.Loosen the three Phillips captive screws that secure the keyboard to the computer.
3.Position the computer on its side with the display open at a 90 degree angle.
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							4.Insert a small tool at an angle through the hole in the optical drive bay at an angle to push out
the top edge of the keyboard. This gives you access to the back of the keyboard and releases
the top edge of the keyboard.
NOTE:Make sure that the optical drive or upgrade hard drive have been removed before
performing this procedure.
5.Turn the computer right-side up, with the front toward you.
6.Open the display as far as it will open.
7.Lift the top edge (1) of the keyboard until it rests at an angle.
8.Slide the keyboard back toward the display (2).
9.Release the keyboard ZIF connector (1) and lift the keyboard cable (2) to release it.
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							10.Release the pointing stick ZIF connector (3) and lift the cable (4) to release it.
Reverse this procedure to install the keyboard.
Fan/graphics board heat sink assembly
NOTE:The fan/graphics board heat sink assemblies include replacement thermal material.
DescriptionSpare part number
For use only with computer models equipped with AMD graphics subsystems 688733-001
For use only with computer models equipped with NVIDIA graphics subsystems 696435-001
NOTE:To properly ventilate the computer, allow at least a 7.6-cm (3-inch) 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 graphics board heat sink, 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 51).
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							5.Remove the service access cover (see Service access cover).
6.Remove the optical drive (see 
Optical drive on page 63) or upgrade bay hard drive (see Upgrade
bay hard drive on page 66).
7.Remove the keyboard (see 
Keyboard on page 71).
8.Remove the top cover (see 
Top cover on page 83)
9.Remove the display assembly (see 
Display assembly on page 88).
Remove the fan/graphics board heat sink assembly:
NOTE:Before proceeding, make sure you disconnect the power button board cable and the RJ-45
cable.
1.Following the sequence stamped into the graphics board heat sink, loosen the 4 Phillips captive
screws (1) that secure the graphics board heat sink/fan assembly to the system board.
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							2.Lift the heat sink/fan assembly (2) straight up to remove it.
NOTE:Due to the adhesive quality of the thermal material located between the fan/graphics
board heat sink assembly and graphics board components, it may be necessary to move the
graphics board heat sink from side to side to detach it from the system board.
NOTE:The thermal material must be thoroughly cleaned from the surfaces of the graphics
board heat sink and the graphics board each time the graphics board heat sink is removed:
Thermal paste is used on the largest component (1) and (2) on the graphics board and the
graphics board heat sink section (3) and (4) that service it.
Reverse this procedure to install the fan/graphics board heat sink assembly.
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							Display bezel
DescriptionSpare part number
Display bezel for use with computer models without a webcam 688763-001
Before removing the display bezel, 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 display assembly (see 
Display assembly on page 88).
Remove the display bezel:
1.Remove the screw covers (1), the captive screw (2), and the two screws (3) that secure the
display bezel to the display enclosure.
2.Remove the screw covers securing the bezel to the display panel (1), and then remove the
screws (2).
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							3.Flex the inside edges of the top edge (3), the left and right sides (4), and the bottom edge (5) of
the display bezel until the bezel disengages from the display enclosure and then remove the
bezel (6).
Reverse this procedure to install the display bezel.
Display panel
DescriptionSpare part number
43.9 cm (17.3 in), HD+ AG LED WVA 691223-001
43.9 cm (17.3 in), FHD AG WVA 691224-001
Before removing the display panel, 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 display assembly (see 
Display assembly on page 88).
5.Remove the display bezel (see 
Display bezel on page 78).
Remove the display panel:
1.Remove the 2 Torx screws on each hinge (1).
2.Remove the two Phillips rawhead screws (2) on the upper left and right corners of the display
panel.
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							3.Remove the 1 Phillips screws (3) that secure the display panel brackets to the hinge pipe.
4.Slide the hinge pipe to the right (1) and remove the hinge pipe (2).
NOTE:Make sure you pull back the antenna cables when removing the hinge pipe.
5.Remove the display panel.
Reverse this procedure to reassemble and to install the display panel.
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							Display panel cable
DescriptionSpare part number
Display panel cable (select models only) 688761-001
To remove the display panel cable:
▲Release the adhesive tape that secures the display panel cable to the display panel (1).
Disconnect the cable (2), and then remove the cable (3).
Hinge brackets
DescriptionSpare part number
Display hinge brackets (consists of the hinge piece and the vertical support brackets for the left and
right sides)652528-001
To remove the display panel hinge brackets:
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							▲Remove the 4 screws that secure each hinge assembly to the panel (1), and then remove the
hinge brackets (2).
Webcam module
DescriptionSpare part number
Webcam module with microphone 688752-001
Before removing the webcam 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 display assembly (see 
Display assembly on page 88).
5.Remove the display panel (see 
Display panel on page 79).
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