HP 6730b Service Manual

							3.Remove the WLAN module (3) by pulling the module away from the slot at an angle.
NOTE:WLAN modules are designed with a notch (4) to prevent incorrect insertion into the WLAN
module slot.
Reverse this procedure to install the WLAN module.
Keyboard
Country or regionSpare part numberCountry or regionSpare part number
Belgium487136-181Norway487136-091
Brazil487136-201Portugal487136-131
The Czech Republic487136-221Russia487136-251
Denmark487136-081Saudi Arabia487136-171
France487136-051Slovakia487136-231
French Canada487136-121Slovenia487136-BA1
Germany487136-041South Korea487136-AD1
Hungary487136-211Spain487136-071
Iceland487136-DD1Sweden and Finland487136-B71
Israel487136-BB1Switzerland487136-BG1
Italy487136-061Taiwan487136-AB1
Japan487136-291Thailand487136-281
Latin America487136-161The United Kingdom487136-031
The Netherlands 487136-B31 The United States 487136-001
Component replacement procedures 61 
						

							Before removing the keyboard, 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).
Remove the keyboard:
1.Loosen the three Phillips PM2.5×9.0 captive screws that secure the keyboard to the computer.
2.Turn the computer display-side up, with the front toward you.
3.Open the computer as far as possible.
4.Slide the four keyboard retention tabs (1) toward you. The tabs are located between the esc and
f1 keys, between the f4 and f5 keys, between the f8 and f9 keys, and between the f12 and scroll
keys.
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							5.Lift the rear edge of the keyboard (2) until it rests at an angle, and slide it back (3) until it rests on
the display assembly and switch cover.
6.Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached, and
disconnect the keyboard cable (2) from the system board.
7.Remove the keyboard.
Reverse this procedure to install the keyboard.
Component replacement procedures 63 
						

							Primary memory module
DescriptionSpare part number
2048-MB memory module (PC2-6400, 667-MHz, DDR2)483194-001
1024-MB memory module (PC2-6400, 667-MHz, DDR2) 483193-001
Before removing the primary memory 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 battery (see 
Battery on page 47).
5.Remove the keyboard (see 
Keyboard on page 61).
Remove the primary memory module:
1.Spread the retaining tabs (1) on each side of the memory module slot to release the memory
module. (The edge of the module opposite the slot rises away from the computer.)
2.Remove the memory module (2) by pulling the module away from the slot at an angle.
NOTE:Memory modules are designed with a notch (3) to prevent incorrect insertion into the
memory module slot.
3.Remove the memory module.
Reverse this procedure to install the primary memory module.
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							WWAN module
DescriptionSpare part number
HSDPA EVDO WWAN module 483377-001
Before removing the WWAN 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 battery (see 
Battery on page 47).
5.Remove the keyboard (see 
Keyboard on page 61).
Remove the WWAN module:
1.Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.
NOTE:The red WWAN antenna cable is connected to the WWAN module “Main” terminal. The
blue WWAN antenna cable is connected to the WWAN module “Aux” terminal.
2.Remove the two Phillips PM2.5×4.0 screws (2) that secure the WWAN module to the computer.
(The edge of the module opposite the slot rises away from the computer.)
3.Remove the WWAN module (3) by pulling the module away from the slot at an angle.
NOTE:WWAN modules are designed with a notch (4) to prevent incorrect insertion into the
WWAN module slot.
4.Remove the WWAN module.
Reverse this procedure to install the WWAN module.
Component replacement procedures 65 
						

							Switch cover
DescriptionSpare part number
Switch cover (includes LED board and cable) 487139-001
Before removing the switch 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 keyboard (see 
Keyboard on page 61).
Remove the switch cover and keyboard:
1.Release the ZIF connector to which the LED board cable (1) is attached, and disconnect the LED
board cable from the system board.
2.Lift the left and right sides of the switch cover (2) until it detaches from the computer.
3.Release the switch cover (3) as far as the power button board cable allows.
4.Disconnect the power button board cable (4) from the system board.
5.Remove the switch cover.
Reverse this procedure to install the switch cover.
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							Power button board
DescriptionSpare part number
Power button board (includes cable) 487118-001
Before removing the power 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 47).
5.Remove the keyboard (see 
Keyboard on page 61).
6.Remove the switch cover (see 
Switch cover on page 66).
Remove the power button board:
1.Turn the switch cover upside down, with the front toward you.
2.Remove the three Phillips PM2.0×5.0 screws (1) that secure the power button board to the switch
cover.
3.Remove the power button board (2) from the switch cover.
Reverse this procedure to install the power button board.
Component replacement procedures 67 
						

							Fan
DescriptionSpare part number
Fan486288-001
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 47).
5.Remove the keyboard (see 
Keyboard on page 61).
6.Remove the switch cover (see 
Switch cover on page 66).
Remove the fan:
1.Disconnect the fan cable (1) from the system board.
2.Loosen the two Phillips PM2.5×7.0 screws (2) that secure the fan to the base enclosure.
3.Remove the fan (3) from the base enclosure.
Reverse this procedure to install the fan.
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.
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							Heat sink
NOTE:The heat sink spare part kits include replacement thermal material.
DescriptionSpare part number
For use only with HP Compaq 6735b computer models488315-001
For use only with HP Compaq 6730b computer models 486289-001
Before removing the 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 47).
5.Remove the following components:
a.Keyboard (see 
Keyboard on page 61)
b.Switch cover (see 
Switch cover on page 66)
c.Fan (see 
Fan on page 68)
Remove the heat sink:
NOTE:Steps 1 through 4 apply only to HP Compaq 6730b computer models. See steps 5 through 8
for removing the heat sink on HP Compaq 6735b computer models.
1.Loosen the two Phillips PM2.0×4.0 captive screws (1) that secure the heat sink clip to the heat
sink.
2.Remove the heat sink clip (2) by sliding it to the right, and then lifting it up.
Component replacement procedures 69 
						

							3.Lift the right side of the heat sink (1) until it releases from the system board components.
NOTE:Due to the adhesive quality of the thermal material located between the heat sink and
system board components, it may be necessary to move the heat sink from side to side to detach
it.
4.Remove the heat sink (2) by sliding it to the right.
NOTE:The thermal material must be thoroughly cleaned from the surfaces of the heat sink and
the system board components each time the heat sink is removed. Thermal pads are used on the
Northbridge chip (1) and the section of the heat sink (1) that services it. Thermal paste is used on
the processor (2) and the section of the heat sink (2) that services it. Replacement thermal material
is included with all heat sink, system board, and processor spare part kits.
NOTE:Steps 5 through 8 apply only to HP Compaq 6735b computer models. See steps 1 through
4 for removing the heat sink on HP Compaq 6730b computer models.
5.Remove the two Phillips PM2.0×4.0 screws (1) that secure the heat sink clips to the heat sink.
70 Chapter 4   Removal and replacement procedures