HP Pavilion Dv7 4000 Entertainment Notebook Pc Series Manual

4–2Maintenance and Service Guide
Removal and replacement procedures
Drive handling
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CAUTION: Drives are fragile components that must be handled with care. To prevent damage to the computer, damage to a 
drive, or loss of information, observe these precautions:
■Before removing or inserting a hard drive, 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. 
■Before handling a drive, be sure that...

Removal and replacement procedures
Maintenance and Service Guide4–3
The following table shows how humidity affects the electrostatic voltage levels generated by different activities.
ÄCAUTION: A product can be degraded by as little as 700 V. 
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...

4–4Maintenance and Service Guide
Removal and replacement procedures
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...

Removal and replacement procedures
Maintenance and Service Guide4–5
Component replacement procedures 
This chapter provides removal and replacement procedures. 
There are as many as 73 screws including captive screws, in 9 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. 
Service tag 
When ordering parts or requesting information, provide the computer serial number and model...

4–6Maintenance and Service Guide
Removal and replacement procedures
Computer feet
The computer feet are adhesive-backed rubber pads. The feet are included in the Rubber Feet Kit, spare part 
number 516499-001. There are 4 rubber feet that attach to the base enclosure in the locations illustrated below.
Battery
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...

Removal and replacement procedures
Maintenance and Service Guide4–7
To install the battery, insert the rear edge of the battery into the battery bay and pivot the front edge of the battery 
downward until it is seated. The battery release latch automatically locks the battery into place. 
Webcam/microphone module
✎This section applies only to computer models equipped with BrightView display assemblies.
If it has been determined that the webcam/microphone module is the component that must be replaced to...

4–8Maintenance and Service Guide
Removal and replacement procedures
4. Release the display bezel top edge 3 from the display enclosure.
5. Release the webcam/microphone module 1 from the display enclosure as far as the webcam/microphone 
module cable allows.
6. Disconnect the webcam/microphone module cable 2 from the webcam/microphone module.
7. Remove the webcam/microphone module.
Reverse this procedure to install the webcam/microphone module. 

Removal and replacement procedures
Maintenance and Service Guide4–9
Optical drive 
✎The optical drive spare part kit includes an optical drive bezel and bracket.
Before removing the optical drive, 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...

4–10Maintenance and Service Guide
Removal and replacement procedures
Reverse this procedure to reassemble and install the optical drive. 
Memory module
Before removing the 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...

Removal and replacement procedures
Maintenance and Service Guide4–11
5. Spread the retaining tabs 1 on each side of the memory module to release the memory module. (The edge of 
the module opposite the slot rises away from the computer.) 
✎If necessary, use a non-conductive pointed tool to spread the retaining tabs.
6. Remove the memory module 2 by pulling the module away from the slot at an angle. 
✎Memory modules are designed with a notch 3 to prevent incorrect insertion into the memory module slot....