HP Pavilion Dv4 1200 Entertainment Notebook Pc Series Manual

DescriptionSpare part number
●For use in Afghanistan, Albania, Algeria, Andorra, Angola, Antigua & Barbuda, Argentina,
Armenia, Aruba, Australia, Austria, Azerbaijan, the Bahamas, Bahrain, Bangladesh,
Barbados, Belarus, Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, Bosnia &
Herzegovina Botswana, Brazil, the British Virgin Islands, Brunei, Bulgaria, Burkina Faso,
Burundi, Cambodia, Cameroon, Cape Verde, the Central African Republic, Chad, Chile,
Colombia, Comoros, the Congo, Costa Rica, Croatia,...

CAUTION:The WWAN module and the WLAN module are not interchangeable.
CAUTION:To prevent an unresponsive system, replace the wireless module only with a wireless
module authorized for use in the computer by the governmental agency that regulates wireless devices
in your country or region. If you replace the module and then receive a warning message, remove the
module to restore computer functionality, and then contact technical support through Help and Support.
Before removing the WLAN module, follow...

WWAN module
DescriptionSpare part number
WWAN modules 
HP EVDO-A WWAN module for use in the United States451131-002
HP un2400 Mobile Broadband Module483377-001
HP UMTS/HSDPA/EDGE WWAN module, including GPRS 459350-001
CAUTION:The WWAN module and the WLAN module are not interchangeable.
CAUTION:To prevent an unresponsive system, replace the wireless module only with a wireless
module authorized for use in the computer by the governmental agency that regulates wireless devices
in your country or region. If...

NOTE:The red WWAN antenna cable is connected to the WWAN module “Main” terminal. The
blue WWAN antenna cable is connected to the WWAN module “Aux” terminal.
5.Remove the two Phillips PM2.0×4.0 screws that secure the module to the computer (2).
6.Remove the WWAN module (3) by pulling the module away from the slot at an angle.
NOTE:WWAN modules are designed with a notch (4) to prevent incorrect insertion.
Reverse this procedure to install the WWAN module.
66 Chapter 4   Removal and replacement procedures 

Memory module
DescriptionSpare part number
Memory modules (800-MHz, PC2-6400, 1-DIMM)
For use in computer models with AMD processors:
 
●2048-GB482169-002
●1024-MB482168-002
●512-MB482167-002
For use in computer models with Intel processors: 
●2048-MB482169-001
●1024-MB482168-001
●512-MB482167-001
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...

3.Lift the right side of the cover (2), swing it to the left, and remove the cover (3). The memory module
compartment cover is included in the Plastics Kit, spare part number 486833-001.
4.Spread the retaining tabs (1) on each side of the memory module slot to release the memory
module. (The edge of the module opposite the slot rises away from the computer.)
5.Remove the module (2) by pulling it away from the slot at an angle.
NOTE:Memory modules are designed with a notch to prevent incorrect insertion...

RTC battery
DescriptionSpare part number
RTC battery486835-001
NOTE:Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all
passwords and CMOS settings to be cleared.
Before removing the RTC battery, 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...

Camera/microphone module for standard display assembly
DescriptionSpare part number
Camera/microphone module (includes camera/microphone module bracket and 2-sided
tape)486876-001
If it has been determined that the camera/microphone module is the component that must be replaced
to complete the computer repair, the display assembly does not have to be removed. Follow the
procedures in this section to replace the camera/microphone module. For information on replacing the
display assembly and display...

4.Release the camera/microphone module assembly from the display enclosure brackets (1), and
lift it out as far as the camera/microphone module cable allows (2).
5.Disconnect the camera/microphone module cable (3) from the camera/microphone module.
Reverse this procedure to install the camera/microphone module.
Component replacement procedures 71 

Keyboard
DescriptionSpare part number
Keyboards
For use with standard computer models
486901-xxx
For use in blue-colored computer models only in the United States507319-001
For use only with bronze-colored computer models508119-xxx
For use in blue-colored computer models 508120-xxx
NOTE:For a comprehensive list of keyboard spare part numbers, see the Sequential part number
listing on page 36.
Before removing the keyboard, follow these steps:
1.Shut down the computer. If you are unsure whether the...