HP Pavilion Dv8 1200 Entertainment Notebook Pc Series Manual

Removal and replacement procedures
Maintenance and Service Guide4–53
Subwoofer
Before removing the subwoofer, 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...

4–54Maintenance and Service Guide
Removal and replacement procedures
Remove the subwoofer: 
1. Remove the three Phillips PM2.5×5.0 broadhead screws 1 that secure the subwoofer to the base enclosure.
2. Remove the subwoofer 2 by lifting it straight up.
✎The rubber grommets 3 should be inspected and replaced in the correct locations 4 on the subwoofer. 
These grommets are critical for satisfactory subwoofer performance.
Reverse this procedure to install the subwoofer. 

Removal and replacement procedures
Maintenance and Service Guide4–55
Audio/infrared board
Before removing the audio/infrared 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...

4–56Maintenance and Service Guide
Removal and replacement procedures
Remove the audio/infrared board:
1. Release the ZIF connector 1 to which the audio/infrared board cable is attached, and disconnect the 
audio/infrared board cable from the system board.
2. Remove the Phillips PM2.0×4.0 screw 2 that secures the audio/infrared board to the base enclosure.
3. Remove the audio/infrared board 3 by lifting it straight up.
Reverse this procedure to install the audio/infrared board. 

Removal and replacement procedures
Maintenance and Service Guide4–57
USB board
Before removing the USB 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...

4–58Maintenance and Service Guide
Removal and replacement procedures
Power connector cable
✎The power connector cable is included in the base enclosure spare part kit, spare part number 577005-001.
Before removing the power connector cable, 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...

Removal and replacement procedures
Maintenance and Service Guide4–59
TV tuner module cable
✎The TV tuner module cable is included in the Cable Kit, spare part number 496891-001.
Before removing the TV tuner module cable, 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...

4–60Maintenance and Service Guide
Removal and replacement procedures
Fan/heat sink assembly
✎To properly ventilate the computer, allow at least 7.6 cm (3 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...

Removal and replacement procedures
Maintenance and Service Guide4–61
Remove the fan/heat sink assembly:
1. Disconnect the fan cable 1 from the system board. 
2. Loosen the four Phillips PM2.0×11.0 captive screws 2 and the two Phillips PM2.5×5.0 captive screws3 that 
secure the fan/heat sink assembly to the system board.
✎Due to the adhesive quality of the thermal material located between the fan/heat sink assembly and 
system board components, it may be necessary to move the fan/heat sink assembly from...

4–62Maintenance and Service Guide
Removal and replacement procedures
✎The thermal material must be thoroughly cleaned from the surfaces of the fan/heat sink assembly and the system 
board each time the fan/heat sink assembly is removed:
■Thermal paste is used on the processor 1 and the heat sink section 2 that services it.
■Thermal pads are used on the Northbridge chip 3 and the heat sink section 4 that services it.
■Thermal pads are used on various other system board components 5 and 7, and heat sink...