HP 6730b Service Manual

							Reverse this procedure to install the USB/digital media board.
Bluetooth module cable
NOTE:The Bluetooth module cable is included in the Cable Kit, spare part number 487138-001.
Before removing the Bluetooth 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 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 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)
Remove the Bluetooth module cable:
1.Disconnect the Bluetooth module cable (1) from the system board.
2.Remove the Bluetooth module cable (2) from the opening built into the base enclosure.
3.Remove the Bluetooth module cable.
Reverse this procedure to install the Bluetooth module cable.
Component replacement procedures 91 
						

							Rear cover
DescriptionSpare part number
Rear cover487143-001
Before removing the rear 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 (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)
Remove the rear cover:
1.Turn the computer upside down, with the rear panel toward you.
2.Remove the four Torx8 T8M2.5×9.0 screws that secure the rear cover to the base enclosure.
3.Turn the computer right side up, with the front toward you.
92 Chapter 4   Removal and replacement procedures 
						

							4.Remove the three Phillips PM2.5×3.0 broad-head screws (1) that secure the rear cover to the base
enclosure.
NOTE:The microphone extension cable ground loop (2) is secured the computer by the left-most
broad-head screw.
5.Remove the two Phillips PM2.5×5.0 screws (3) that secure the rear cover to the base enclosure.
6.Remove the microphone extension cable (4) from the clips and routing channel built into the rear
cover.
NOTE:The microphone extension cable is included in the Cable Kit, spare part number
487138-001.
7.Lift the rear edge of the rear cover (1) until it disengages from the base enclosure.
8.Remove the rear cover (2) by lifting it straight up.
Reverse this procedure to install the rear cover.
Component replacement procedures 93 
						

							SIM connector board
NOTE:This section applies only to computer models equipped with a WWAN module.
DescriptionSpare part number
SIM connector board486252-001
Before removing the SIM connector 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 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.Rear cover (see 
Rear cover on page 92)
Remove the SIM connector board:
1.Remove the two Phillips PM2.5×5.0 screws (1) that secure the SIM connector board to the base
enclosure.
2.Lift the left side of the SIM connector board (2) to disconnect it from the system board.
94 Chapter 4   Removal and replacement procedures 
						

							3.Remove the SIM connector board (3) by sliding it forward and out of the base enclosure.
Reverse this procedure to install the SIM connector board.
Modem module cable
NOTE:The modem module cable is included in the Cable Kit, spare part number 487138-001.
Before removing the modem 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 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 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.Rear cover (see 
Rear cover on page 92)
Remove the modem module cable:
1.Disconnect the modem module cable (1) from the system board.
2.Remove the modem module cable (2) from the clips and routing channel (3) built into the system
board bracket.
Component replacement procedures 95 
						

							3.Release the RJ-11 connector (4) from the clip built into the base enclosure.
4.Remove the modem module cable.
Reverse this procedure to install the modem module cable.
Serial connector and cable
NOTE:The serial connector and cable are available using spare part number 487120-001.
Before removing the serial connector and 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 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 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.Rear cover (see 
Rear cover on page 92)
96 Chapter 4   Removal and replacement procedures 
						

							Remove the serial connector and cable:
1.Disconnect the serial connector cable (1) from the system board.
2.Remove the two HM5.0×9.0 screw locks (2) that secure the serial connector to the base enclosure.
3.Remove the serial connector (3) from the clip built into the base enclosure.
4.Remove the serial connector and cable.
Reverse this procedure to install the serial connector and cable.
System board
NOTE:All system board spare part kits include replacement thermal material.
DescriptionSpare part number
For use only with HP Compaq 6735b computer models equipped with both WLAN and WWAN
modules488193-001
For use only with HP Compaq 6735b computer models equipped with a WLAN module but not a
WWAN module488194-001
For use only with HP Compaq 6730b computer models equipped with both WLAN and WWAN
modules486247-001
For use only with HP Compaq 6730b computer models equipped with a WLAN module but not a
WWAN module486248-001
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.
Component replacement procedures 97 
						

							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.Fan (see 
Fan on page 68)
f.Heat sink (see 
Heat sink on page 69)
g.Display assembly (see 
Display assembly on page 75)
h.Top cover (see 
Top cover on page 81)
i.ExpressCard board (see 
ExpressCard board on page 84)
j.Audio board (see 
Audio board on page 85)
k.Speaker (see 
Speaker on page 88)
l.Rear cover (see 
Rear cover on page 92)
m.SIM connector board (see 
SIM connector board on page 94)
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:
●SIM (see 
SIM on page 48)
●RTC battery (see 
RTC battery on page 55)
●Memory modules (see 
Primary memory module on page 64 and Expansion memory module
on page 57)
●WLAN module (see 
WLAN module on page 59)
●WWAN module (see 
WWAN module on page 65)
●Processor (see 
Processor on page 73)
●Optical drive connector board (see 
Optical drive connector board on page 101)
Remove the system board:
1.Position the base enclosure with the rear panel toward you.
2.Remove the two Phillips PM2.5×3.0 broad-head screws (1) that secure the system board bracket
to the base enclosure.
3.Remove the two HM5.0×9.0 screw locks (2) that secure the system board bracket to the base
enclosure.
98 Chapter 4   Removal and replacement procedures 
						

							4.Remove the system board bracket (3).
NOTE:The system board bracket is available using spare part number 486291-001.
5.Position the base enclosure with the front toward you.
6.Disconnect the following cables from the system board:
(1) Modem module cable
(2) Bluetooth module cable
(3) Serial connector cable
NOTE:Step 7 applies only to computer models not equipped with WWAN capability.
7.Remove the Phillips PM2.5×5.0 screw (4) that secures the system board to the base enclosure.
8.Remove the two Phillips PM2.5×5.0 screws (1) that secure the optical drive connector board to the
base enclosure
Component replacement procedures 99 
						

							9.Remove the Phillips PM2.5×5.0 screw (2) that secures the system board to the base enclosure.
10.Use the right side of the system board (1) immediately behind the optical drive connector board
(2) to lift the right side of the system board (3) until it rests at an angle.
CAUTION:When lifting the system board, do not exert any pressure on the optical drive
connector board (2). Failure to follow this caution can result in damage to the system board and
optical drive connector.
11.Remove the system board (4) by sliding it up and away from the base enclosure at an angle.
Reverse this procedure to install the system board.
100 Chapter 4   Removal and replacement procedures