HP 6730b Service Manual

Top cover
DescriptionSpare part number
Top cover487140-001
Before removing the top cover, 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...

3.Remove the three Phillips PM2.5×3.0 screws (1) and the two Phillips PM2.5×3.0 broad-head
screws (2) that secure the top cover to the computer.
4.Turn the computer right side up, with rear panel toward you.
5.Lift the rear edge of the top cover until it rests at an angle.
6.Release the ZIF connector to which the TouchPad cable (1) is attached, and disconnect the
TouchPad cable from the ExpressCard board.
NOTE:The fingerprint reader board is available only on select models.
82 Chapter 4   Removal and...

7.Disconnect the fingerprint reader board cable (2) from the ExpressCard board.
8.Remove the top cover.
Reverse this procedure to install the top cover.
TouchPad assembly
DescriptionSpare part number
For use only with computer models equipped with a fingerprint reader (includes a fingerprint reader
board and cable)487134-001
For use only with computer models not equipped with a fingerprint reader 487135-001
Before removing the TouchPad assembly, follow these steps:
1.Shut down the computer. If you are...

Remove the TouchPad assembly:
1.Hold the top cover above the work surface.
2.Release the TouchPad assembly (1) by pushing up on the front edge of the assembly from
underneath the top cover.
3.Remove the TouchPad assembly (2) by sliding it up and forward at an angle
Reverse this procedure to install the TouchPad assembly.
ExpressCard board
DescriptionSpare part number
ExpressCard board (includes RTC battery) 487119-001
Before removing the ExpressCard board, follow these steps:
1.Shut down the computer. If...

e.Display assembly (see Display assembly on page 75)
f.Top cover (see 
Top cover on page 81)
Remove the ExpressCard board:
1.Remove the two Phillips PM2.5×3.0 broad-head screws (1) that secure the ExpressCard board to
the computer.
2.Remove the ExpressCard board (2).
Reverse this procedure to install the ExpressCard board.
Audio board
DescriptionSpare part number
Audio board (includes cable) 486250-001
Before removing the audio board, follow these steps:
1.Shut down the computer. If you are unsure...

e.Display assembly (see Display assembly on page 75)
f.Top cover (see 
Top cover on page 81)
g.ExpressCard board (see 
ExpressCard board on page 84)
Remove the audio board:
1.Remove the three Phillips PM2.5×5.0 screws (1) that secure the audio board to the system board.
NOTE:The audio board cable ground loop (2) is secured by the audio board rear screw.
2.Disconnect the speaker cable (3) from the audio board.
3.Disconnect the audio board cable (4) from the system board.
4.Release the audio board (1) by...

6.Disconnect the modem module cable (3) from the modem module.
7.Remove the audio board.
Reverse this procedure to install the audio board.
Modem module
NOTE:The modem module spare part kits do not include a modem module cable. The modem module
cable is included in the Cable Kit, spare part number 487138-001.
DescriptionSpare part number
For use in all countries and regions except Australia and New Zealand491575-001
For use only in Australia and New Zealand 491575-011
Before removing the modem module,...

f.Top cover (see Top cover on page 81)
g.ExpressCard board (see 
ExpressCard board on page 84)
h.Audio board (see 
Audio board on page 85)
Remove the modem module:
1.Turn the audio board upside down, with the audio connectors toward you.
2.Remove the two Phillips PM2.5×3.0 screws (1) that secure the modem module to the audio board.
NOTE:The audio board cable ground loop (2) is secured by the modem module rear screw.
3.Lift the modem module (3) straight up to disconnect it from the audio board.
4.Remove...

4.Remove the battery (see Battery on page 47).
5.Remove the following:
a.Hard drive (see 
Hard drive on page 53)
b.Optical drive (see 
Optical drive on page 56)
c.Keyboard (see 
Keyboard on page 61)
d.Switch cover (see 
Switch cover on page 66)
e.Display assembly (see 
Display assembly on page 75)
f.Top cover (see 
Top cover on page 81)
g.ExpressCard board (see 
ExpressCard board on page 84)
h.Audio board (see 
Audio board on page 85)
Remove the speaker:
1.Remove the two Phillips PM2.5×5.0 screws (1)...

USB/digital media board
DescriptionSpare part number
USB/digital media board (includes cable) 486249-001
Before removing the USB/digital media 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...