HP 6730b Service Manual

							6.Remove the heat sink clips (2) by sliding them to left, and then lifting them up.
7.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.
Component replacement procedures 71 
						

							8.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 paste is used on the
processor (1) and the section of the heat sink (1) that services it. Thermal pads are used on the
Northbridge chip (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.
Reverse this procedure to install the heat sink.
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							Processor
NOTE:All processor spare part kits include replacement thermal material.
DescriptionSpare part number
AMD processors for use only with HP Compaq 6735b computer models: 
●AMD Turion 64 ZM-86 2.40-GHz processor488198-001
●AMD Turion 64 ZM-82 2.20-GHz processor488196-001
●AMD Turion 64 ZM-80 2.10-GHz processor488195-001
●AMD Turion 64 RM-70 2.00-GHz processor488199-001
●AMD Sempron SI-40 2.00-GHz processor488197-001
●AMD Athlon QL-60 1.90-GHz processor488200-001
Intel processors for use only with HP Compaq 6730b computer models: 
●Intel Core 2 Duo T9600 2.80-GHz processor (6-MB L2 cache, 800-MHz FSB)486257-001
●Intel Core 2 Duo T9400 2.53-GHz processor (6-MB L2 cache, 800-MHz FSB)486256-001
●Intel Core 2 Duo T8600 2.40-GHz processor (3-MB L2 cache, 800-MHz FSB)486255-001
●Intel Core 2 Duo T8400 2.26-GHz processor (3-MB L2 cache, 800-MHz FSB) 486254-001
Before removing the processor, 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 
Switch cover on page 66)
b.Switch cover (see 
Switch cover on page 66)
c.Fan (see 
Fan on page 68)
d.Heat sink (see 
Heat sink on page 69)
Remove the processor:
NOTE:Steps 1 and 2 apply only to HP Compaq 6730b computer models. See steps 3 and 4 for
removing the processor on HP Compaq 6735b computer models.
1.Use a flat-bladed screwdriver to turn the processor locking screw (1) one-half turn counterclockwise
until you hear a click.
Component replacement procedures 73 
						

							2.Lift the processor (2) straight up and remove it.
NOTE:When you install the processor, the gold triangle (3) on the processor must be aligned
with the triangle (4) embossed on the processor socket.
NOTE:Steps 3 and 4 apply only to HP Compaq 6735b computer models. See steps 1 and 2 for
removing the processor on HP Compaq 6730b computer models.
3.Use a flat-bladed screwdriver to turn the processor locking screw (1) one-half turn counterclockwise
until you hear a click.
4.Lift the processor (2) straight up and remove it.
NOTE:When you install the processor, the gold triangle (3) on the processor must be aligned
with the triangle (4) embossed on the processor socket.
Reverse this procedure to install the processor.
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							Display assembly
NOTE:All display assembly spare part kits include 2 WLAN antenna transceivers and cables.
DescriptionSpare part number
Display assemblies for use only with HP Compaq 6735b computer models:
●15.4-inch SXGA+ display assembly with 2 microphones and webcam for use only with
computer models equipped with both WLAN and WWAN modules
492177-001
●15.4-inch SXGA+ display assembly with 1 microphone for use only with computer models
equipped with both WLAN and WWAN modules492178-001
●15.4-inch SXGA+ display assembly with 2 microphones and webcam for use only with
computer models equipped with a WLAN module but not a WWAN module492179-001
●15.4-inch SXGA+ display assembly with 1 microphone for use only with computer models
equipped with a WLAN module but not a WWAN module492180-001
●15.4-inch WXGA BrightView display assembly with 2 microphones and webcam for use only
with computer models equipped with both WLAN and WWAN modules492181-001
●15.4-inch WXGA BrightView display assembly with 1 microphone for use only with computer
models equipped with both WLAN and WWAN modules492182-001
●15.4-inch WXGA Brightview display assembly with 2 microphones and webcam for use only
with computer models equipped with a WLAN module but not a WWAN module492183-001
●15.4-inch WXGA Brightview display assembly with 1 microphone for use only with computer
models equipped with a WLAN module but not a WWAN module492184-001
●15.4-inch WXGA display assembly with 2 microphones and webcam for use only with
computer models equipped with both WLAN and WWAN modules492173-001
●15.4-inch WXGA display assembly with 1 microphone for use only with computer models
equipped with both WLAN and WWAN modules492174-001
●15.4-inch WXGA display assembly with 2 microphones and webcam for use only with
computer models equipped with a WLAN module but not a WWAN module492175-001
●15.4-inch WXGA display assembly with 1 microphone for use only with computer models
equipped with a WLAN module but not a WWAN module492176-001
Display assemblies for use only with HP Compaq 6730b computer models:
●15.4-inch SXGA+ display assembly with 2 microphones and webcam for use only with
computer models equipped with both WLAN and WWAN modules
487126-001
●15.4-inch SXGA+ display assembly with 1 microphone for use only with computer models
equipped with both WLAN and WWAN modules487127-001
●15.4-inch SXGA+ display assembly with 2 microphones and webcam for use only with
computer models equipped with a WLAN module but not a WWAN module487128-001
●15.4-inch SXGA+ display assembly with 1 microphone for use only with computer models
equipped with a WLAN module but not a WWAN module487129-001
●15.4-inch WXGA BrightView display assembly with 2 microphones and webcam for use only
with computer models equipped with both WLAN and WWAN modules487130-001
●15.4-inch WXGA BrightView display assembly with 1 microphone for use only with computer
models equipped with both WLAN and WWAN modules487131-001
●15.4-inch WXGA BrightView display assembly with 2 microphones and webcam for use only
with computer models equipped with a WLAN module but not a WWAN module487132-001
Component replacement procedures 75 
						

							DescriptionSpare part number
●15.4-inch WXGA BrightView display assembly with 1 microphone for use only with computer
models equipped with a WLAN module but not a WWAN module487133-001
●15.4-inch WXGA display assembly with 2 microphones and webcam for use only with
computer models equipped with both WLAN and WWAN modules487122-001
●15.4-inch WXGA display assembly with 1 microphone for use only with computer models
equipped with both WLAN and WWAN modules487123-001
●15.4-inch WXGA display assembly with 2 microphones and webcam for use only with
computer models equipped with a WLAN module but not a WWAN module487124-001
●15.4-inch WXGA display assembly with 1 microphone for use only with computer models
equipped with a WLAN module but not a WWAN module487125-001
Before removing the display assembly, 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.Disconnect the wireless antenna cables from the WLAN module (see 
WLAN module on page 59).
6.Disconnect the wireless antenna cables from the WWAN module (see 
WWAN module
on page 65).
7.Remove the fan (see 
Fan on page 68).
8.Remove the switch cover (see 
Switch cover on page 66).
Remove the display assembly:
1.Close the computer and position it with the rear panel toward you.
2.Remove the four Torx T8M2.5×9.0 screws that secure the display assembly to the computer.
3.Position the computer with the front toward you.
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							4.Open the computer as far as possible.
5.Disconnect the display panel cable (1) from the system board.
6.Disconnect the microphone cable (2) from the microphone extension cable.
7.Remove the Torx8 T8M2.5×4.0 screw (3) that secures the left display hinge cover to the computer.
8.Remove the left display hinge cover (4).
NOTE:The left and right hinge covers are available using spare part number 487144-001.
9.Disconnect the camera cable (1) from the system board.
10.Remove the wireless antenna cables (2) from the clips (3) and routing channel built into the top
cover.
CAUTION:The display assembly will be unsupported when the following screws are removed.
To prevent damage to the display assembly, support it before removing the screws.
11.Remove the two T8M2.5×9.0 screws (1) that secure the display assembly to the computer.
NOTE:The screw on the left display assembly hinge secures a display panel cable ground loop.
Component replacement procedures 77 
						

							12.Lift the display assembly (2) straight up and remove it.
13.If it is necessary to replace the display bezel or display hinges, remove the following:
(1) Four beveled rubber screw covers on the display bezel top edge. All rubber screw covers are
available in the Display Rubber Kit, spare part number 486775-001.
(2) Two flat rubber screw covers on the display bezel bottom edge. All rubber screw covers are
available in the Display Rubber Kit, spare part number 486775-001.
(3) Six Torx T8M2.5×7.0 screws that secure the display bezel to the display assembly.
14.Flex the inside edges of the left and right sides (1) and the top and bottom sides (2) of the display
bezel until the bezel disengages from the display enclosure.
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							15.Remove the display bezel (3). The display bezel is available using spare part numbers 487336-001
(for use with computer models equipped with a webcam) and 487338-001 (for use with computer
models not equipped with a webcam).
16.If it is necessary to replace the display hinges, remove the two four T8M2.5×7.0 screws (1) that
secure the display panel to the display enclosure.
17.Remove the display panel (2).
18.Remove the four Phillips PM2.0×4.0 screws (1) that secure each display hinge to the display
panel.
Component replacement procedures 79 
						

							19.Remove the display hinges (2). The left and right display hinges are available using spare part
number 487337-001.
Reverse this procedure to reassemble and install the display assembly.
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