HP Pavilion Tx1200 Notebook Pc Series Service Guide

System board
DescriptionSpare part number
For use only with computer models equipped with WWAN441097-001
For use only with computer models not equipped with WWAN 441096-001
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:
● Memory module (see 
Memory module on page 43
)
● WLAN module (see 
WLAN module on page 44
)
● RTC battery (see 
RTC battery on page 62
)
● Bluetooth module (see 
Bluetooth...

3. Remove the ExpressCard slot bezel  (4) from the ExpressCard slot.
NOTE: The ExpressCard slot bezel is included in the Plastics Kit, spare part number
441138-001.
4 . Use the optical drive connector  (1) to lift the left side of the system board  (2) until the power connector
(3)  is clear of the base enclosure.
5 . Pull the system board  (4) away from the top cover at an angle and remove it.
Reverse this procedure to install the system board.
ENWW Component replacement procedures 67 

Pen holder
DescriptionSpare part number
Pen holder441146-001
Pen eject assembly 441145-001
Before removing the pen holder, 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 device
s connected to the computer.
3 . Disconnect the power cord.
4 . Remove the battery (see 
Battery on page 36
).
5 . Remove the following components:
a
. Pen (see...

4. Remove the pen holder  (4).
Reverse this procedure to install the pen holder.
Audio/infrared board
DescriptionSpare part number
Audio/infrared board (includes au dio/infrared board cable) 441144-001
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 device
s connected to the computer.
3 ....

i. System board (see System board on page 66
)
j . Pen holder (see 
Pen holder on page 68
).
Remove the audio/infrared board:
1 . Remove the two Phillips PM2.0×5.0 screws  (1) that secure the audio/infrared board to the system
board.
2 . Release the audio/infrared board  (2) by sliding it away from you until the connectors on the front
of the board disengage from the  openings in the base enclosure.
3 . Remove the audio/infrared board  (3).
Reverse this procedure to inst all the audio/infrared board....

d. Keyboard (see Keyboard on page 47
)
e . Switch cover (see 
Switch cover on page 50
)
f . Display assembly (see 
Display assembly on page 52
)
g . Top cover (see 
Top cover on page 59
)
h . Power switch assembly (see 
Power switch assembly on page 63
)
i . System board (see 
System board on page 66
)
Remove the WWAN antenna board:
1 . Remove the two Phillips PM2.0×4.0 screws  (1) that secure the WWAN external antenna board to
the base enclosure.
2 . Remove the WWAN external antenna board and cable...

Before removing the fan/heat sink 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 device
s connected to the computer.
3 . Disconnect the power cord.
4 . Remove the battery (see 
Battery on page 36
).
5 . Remove the following components:
a
. Hard drive (see 
Hard drive on page 38
)
b . Memory module compartment cover (see 
Memory...

3. Remove the fan/heat sink assembly  (3).
NOTE: Due to the adhesive quality of the therma l paste and thermal pads located between
the fan/heat sink assembly and system board co mponents, it may be necessary to move the
fan/heat sink assembly from side  to side to detach the assembly.
NOTE:The thermal paste and thermal pads should be  thoroughly cleaned from the surfaces of
the fan/heat sink assembly  (1) and the system board components  (2) each time the fan/heat sink
assembly is removed. Thermal pas...

Processor
NOTE:All processor spare part kits include thermal paste.
DesriptionSpare part number
AMD Turion 64 Mobile Technology TL-60 processor (2.0-GHz, 1-MB L2 cache)436257-001
AMD Turion 64 Mobile Technology TL-56 processor (1.8-GHz, 1-MB L2 cache)431373-001
AMD Turion 64 Mobile Technology TL-52 processor (1.6-GHz, 1-MB L2 cache)431372-001
AMD Turion 64 Mobile Technology TL-50 processor (1.6-GHz, 512-KB L2 cache)431371-001
AMD Turion 64 Mobile Technology MK-36 pr ocessor (2.0-GHz, 512-KB L2 cache)...

2. Lift the processor  (2) straight up and remove it.
NOTE: The gold triangle  (3) on the processor should be aligned with the triangle  (4)
embossed on the processor socket when you install the processor.
Reverse this procedure to install the processor.
ENWW Component replacement procedures 75