HP Pavilion Dv8 1200 Entertainment Notebook Pc Series Manual

							Removal and replacement procedures
Maintenance and Service Guide4–43
4. Turn the computer right-side up, with the front toward you.
5. Disconnect the following cables from the system board:
1 TouchPad board cable
2 TouchPad on/off button board cable
3 USB board cable
4 Power connector cable
6. Release the power connector cable 1 and USB board cable 2 from the clips and routing channel built into the 
top cover. 
						

							4–44Maintenance and Service Guide
Removal and replacement procedures
7. Remove the five Phillips PM2.5×7.0 screws that secure the top cover to the base enclosure. 
8. Lift the rear edge 1 of the top cover until it rests at an angle.
9. Slide the top cover 2 back until the fingerprint reader board cable is accessible. 
						

							Removal and replacement procedures
Maintenance and Service Guide4–45
10. Release the ZIF connector 1 to which the fingerprint reader board cable is attached, and disconnect the 
fingerprint reader board cable from the system board.
11. Remove the top cover 2.
Reverse this procedure to install the top cover. 
						

							4–46Maintenance and Service Guide
Removal and replacement procedures
TouchPad on/off button board
Before removing the TouchPad on/off button board, 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 4-7). 
5. Remove the following components:
a. Optical drive (see “Optical drive” on page 4-8)
b. Mass storage device (see “Mass storage device” on page 4-10)
c. TV tuner module (see “TV tuner module” on page 4-13)
d. Memory module (see “Memory module” on page 4-16)
e. WLAN module (see “WLAN module” on page 4-17)
f. Switch cover (see “Switch cover” on page 4-21)
g. Keyboard cover (see “Keyboard cover” on page 4-23)
h. Keyboard (see “Keyboard” on page 4-27)
i. Speaker assembly (see “Speaker assembly” on page 4-33)
j. Display assembly (see “Display assembly” on page 4-34)
k. Top cover (see “Top cover” on page 4-41)
Description Spare part number 
TouchPad on/off button board (includes cable) 580986-001 
						

							Removal and replacement procedures
Maintenance and Service Guide4–47
Remove the TouchPad on/off button board:
1. Turn the top cover upside down, with the front toward you.
2. Remove the Phillips PM2.0×4.0 screw 1 that secures the TouchPad on/off button board to the top cover.
3. Remove the TouchPad on/off button board 2.
Reverse this procedure to install the TouchPad on/off button board. 
						

							4–48Maintenance and Service Guide
Removal and replacement procedures
System board
Before removing the system board, 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 4-7). 
5. Remove the following components: 
a. Optical drive (see “Optical drive” on page 4-8)
b. Mass storage device (see “Mass storage device” on page 4-10)
c. TV tuner module (see “TV tuner module” on page 4-13)
d. Memory module (see “Memory module” on page 4-16)
e. WLAN module (see “WLAN module” on page 4-17)
f. Switch cover (see “Switch cover” on page 4-21)
g. Keyboard cover (see “Keyboard cover” on page 4-23)
h. Keyboard (see “Keyboard” on page 4-27)
i. Speaker assembly (see “Speaker assembly” on page 4-33)
j. Display assembly (see “Display assembly” on page 4-34)
k. Top cover (see “Top cover” on page 4-41)
When replacing the system board, be sure that the following components are removed from the defective system 
board and installed on the replacement system board:
■RTC battery (see “RTC battery” on page 4-15)
■Fan/heat sink assembly (see “Fan/heat sink assembly” on page 4-60)
■Processor (see “Processor” on page 4-63)
DescriptionSpare part number 
System board (includes 1024 MB of graphics subsystem memory and replacement thermal material) 573758-001 
						

							Removal and replacement procedures
Maintenance and Service Guide4–49
Remove the system board: 
1. Turn the computer upside down, with the front toward you.
2. Disconnect the subwoofer cable from the system board.
3. Turn the computer right-side up, with the front toward you.
4. Disconnect the fan cable 1 from the system board.
5. Release the ZIF connector to which the audio/infrared board cable 2 is attached, and disconnect the 
audio/infrared board cable from the system board.
6. Disconnect the USB board cable 3 from the system board.
7. Disconnect the power connector cable 4 from the system board. 
						

							4–50Maintenance and Service Guide
Removal and replacement procedures
8. Remove the three Phillips PM2.5×7.0 screws that secure the system board to the base enclosure.
9. Use the optical drive connector 1 to lift the system board 2 until it rests at an angle.
10. Remove the system board 3 by sliding it up and to the right.
Reverse this procedure to install the system board. 
						

							Removal and replacement procedures
Maintenance and Service Guide4–51
Fan
Before removing the fan, 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 4-7). 
5. Remove the following components: 
a. Optical drive (see “Optical drive” on page 4-8)
b. Mass storage device (see “Mass storage device” on page 4-10)
c. TV tuner module (see “TV tuner module” on page 4-13)
d. Memory module (see “Memory module” on page 4-16)
e. WLAN module (see “WLAN module” on page 4-17)
f. Switch cover (see “Switch cover” on page 4-21)
g. Keyboard cover (see “Keyboard cover” on page 4-23)
h. Keyboard (see “Keyboard” on page 4-27)
i. Speaker assembly (see “Speaker assembly” on page 4-33)
j. Display assembly (see “Display assembly” on page 4-34)
k. Top cover (see “Top cover” on page 4-41)
l. System board (see “System board” on page 4-48)
DescriptionSpare part number 
Fan514290-001 
						

							4–52Maintenance and Service Guide
Removal and replacement procedures
Remove the fan:
1. Remove the two Phillips PM2.0×4.0 screws 1 that secure the fan to the base enclosure.
2. Remove the fan 2 from the base enclosure.
Reverse this procedure to install the fan.