HP Pavilion Hdx9400 Entertainment Notebook Pc Series Service Guide

●Avoid contact with pins, leads, or circuitry.
●Turn off power and input signals before inserting or removing connectors or test equipment.
Equipment guidelines
Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation.
●When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible straps
with a minimum of one megohm ±10% resistance in the ground cords. To provide proper ground,
wear a strap snugly against the skin at all times. On...

Before disassembling the computer, 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 36).
5.Remove the RTC battery (see...

Battery
DescriptionSpare part number
9-cell, 2.55-Ah, 83-Wh battery 448158-001
Before disassembling the computer, 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....

Display assembly internal components
NOTE:If it has been determined that the display bezel, camera module, display inverter, display panel,
or speakers are the components that must be replaced to complete the computer repair, the display
assembly does not have to be completely removed from the computer. Replacement of these components
can be completed by removing only the display bezel. Follow the procedures in this section to replace
the display bezel, camera module, display inverter, display panel, or...

4.Remove the two Phillips 2.5×5.0 screws (2) that secure the display bezel to the display enclosure.
5.Position the computer with the front toward you.
6.Remove the following screw covers and logo labels:
(1) Two rubber screw covers on the display bezel top edge corners
(2) Two rubber screw covers on the display bezel top edge
(3) Four rubber screw covers on the display bezel left and right sides
(4) Speaker logo label on the display bezel lower left edge
(5) Computer model logo label on the display...

7.Remove the ten Phillips PM2.5×5.0 screws that secure the display bezel to the display assembly.
8.Flex the inside edges of the left and right sides (1) and the top and bottom edges (2) of the display
bezel until the bezel disengages from the display enclosure.
9.Remove the display bezel (3). The display bezel is available using spare part number
452307-001.
10.If it is necessary to replace the camera module, remove the two Phillips PM2.5×5.0 screws (1) that
secure the camera module to the display...

12.Disconnect the camera module cable (3) from the camera module.
13.Remove the camera module. The camera module is available using spare part number
452304-001.
14.If it is necessary to replace the display inverter, remove the display inverter (1) from the display
enclosure as far as the two display inverter cables and the backlight cable allow.
15.Disconnect the two display panel cables (2) and the backlight cable (3) from the display inverter.
16.Remove the display inverter. The display inverter is...

17.I f  i t  i s  n e c e s s a r y  t o  r e p l a c e  t h e  display panel, remove the eight Phillips PM2.5×5.0 screws that secure
the display panel to the display enclosure.
18.Tilt the top edge of the display panel (1) forward until the display panel cable connector is accessible.
19.Squeeze the tabs on the display panel cable connector (2) together and disconnect the cable (3)
from the display panel.
20.Remove the display panel. The display panel is available using spare part numbers 452301-001...

23.Remove the speakers (3). The speakers are available using spare part number 452310-001
Reverse this procedure to install the display bezel, camera module, display inverter, display panel, and
speakers.
Hard drive
NOTE:All hard drive spare part kits include a hard drive bracket.
DescriptionSpare part number
320-GB, 5400-rpm459611-001
250-GB, 5400-rpm454605-001
200-GB, 4200-rpm448155-001
160-GB, 5400-rpm448154-001
120-GB, 7200-rpm448152-001
120-GB, 5400-rpm448153-001
100-GB, 7200-rpm452313-001
Before...

2.Lift the rear edge of the hard drive bay cover (2), swing it forward, and remove the cover. The hard
drive bay cover is included in the Plastics Kit, spare part number 448171-001.
3.Loosen the Phillips PM2.5×12.0 screw (1) that secures each hard drive to the computer.
4.Disconnect the hard drives (2) from the system board by sliding the hard drives away from the hard
drive connectors.
5.Remove the hard drives (3) from the hard drive compartments.
6.If it is necessary to replace the hard drive bracket,...