HP Pavilion Hdx9575la Entertainment Notebook Pc Service Guide

Grounding guidelines
Electrostatic discharge damage
Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure
determine the degree of sensitivity. Networks built into many integrated circuits provide some protection,
but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions.
A discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or
microcircuitry. Even if the spark is...

Packaging and transporting guidelines
Follow these grounding guidelines when packaging and transporting equipment:
●To avoid hand contact, transport products in static-safe tubes, bags, or boxes.
●Protect ESD-sensitive parts and assemblies with conductive or approved containers or packaging.
●Keep ESD-sensitive parts in their containers until the parts arrive at static-free workstations.
●Place items on a grounded surface before removing items from their containers.
●Always be properly grounded when...

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 grounded mats with banana-plug connectors,
use alligator clips to connect a wrist strap.
●When standing, use foot straps and a grounded floor mat....

Unknown user password
If the computer you are servicing has an unknown user password, follow these steps to clear the password.
NOTE:These steps also clear CMOS.
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...

Component replacement procedures
This chapter provides removal and replacement procedures.
There are as many as 154 screws, in 18 different sizes, that must be removed, replaced, or loosened
when servicing the computer. Make special note of each screw size and location during removal and
replacement.
Serial number
Report the computer serial number to HP when requesting information or ordering spare parts. The serial
number is located on the bottom of the computer.
Component replacement procedures 37 

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....

Computer feet
DescriptionSpare part number
Rubber Feet Kit (includes 11 computer feet in 4 sizes) 452320-001
The computer feet are adhesive-backed rubber pads. The feet attach to the base enclosure in the locations
illustrated below.
Component replacement procedures 39 

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...

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 bezel lower right edge
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...

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 enclosure.
11.Release the camera module (2) from the display enclosure as far as the camera module cable allows.
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...