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, Cyprus, the Czech Republic,
Denmark, Djibouti, Dominica, the Dominican Republic, East Timor, Ecuador, Egypt, El
Salvador, Equitorial Guinea, Eritrea, Estonia, Ethiopia, Fiji, Finland, France, French
Guiana, Gabon, Gambia, Georgia, Germany, Ghana, Gibraltar, Greece, Grenada,
Guadeloupe, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong,
Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, the Ivory Coast, Jamaica, Jordan,
Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia,
Liechtenstein, Lithuania, Luxembourg, Macedonia, Madagascar, Malawi, Malaysia, the
Maldives, Mali, Malta, the Marshall Islands, Martinique, Mauritania, Mauritius, Mexico,
Micronesia, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Namibia, Nauru,
Nepal, the Nether Antilles, the Netherlands, New Zealand, Nicaragua, Niger, Nigeria,
Norway, Oman, Palau, Panama, Papua New Guinea, Paraguay, the Peoples Republic
of China, Peru, the Philippines, Poland, Portugal, Qatar, the Republic of Moldova,
Romania, Russia, Rwanda, Samoa, San Marino, Sao Tome & Principe, Saudi Arabia,
Senegal, Serbia, the Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, the
Solomon Islands, Somalia, South Africa, South Korea, Spain, Sri Lanka, St. Kitts & Nevis,
St. Lucia, St. Vincent and the Grenadines, Suriname, Swaziland, Sweden, Switzerland,
Taiwan, Tajikistan, Tanzania, Thailand, Togo, Tonga, Trinidad & Tobago, Tunisia, Turkey,
Turkmenistan, Tuvalu, Uganda, Ukraine, the United Arab Emirates, the United Kingdom,
Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zaire, Zambia, and
Zimbabwe459263-002
●For use in the United States and Canada459263-001
802.11n WLAN modules: 
●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, Cyprus, the Czech Republic,
Denmark, Djibouti, Dominica, the Dominican Republic, East Timor, Ecuador, Egypt, El
Salvador, Equitorial Guinea, Eritrea, Estonia, Ethiopia, Fiji, Finland, France, French
Guiana, Gabon, Gambia, Georgia, Germany, Ghana, Gibraltar, Greece, Grenada,
Guadeloupe, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong,
Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, the Ivory Coast, Jamaica, Jordan,
Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia,
Liechtenstein, Lithuania, Luxembourg, Macedonia, Madagascar, Malawi, Malaysia, the
Maldives, Mali, Malta, the Marshall Islands, Martinique, Mauritania, Mauritius, Mexico,
Micronesia, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Namibia, Nauru,
Nepal, the Nether Antilles, the Netherlands, New Zealand, Nicaragua, Niger, Nigeria,
Norway, Oman, Palau, Panama, Papua New Guinea, Paraguay, the Peoples Republic
of China, Peru, the Philippines, Poland, Portugal, Qatar, the Republic of Moldova,
Romania, Russia, Rwanda, Samoa, San Marino, Sao Tome & Principe, Saudi Arabia,
Senegal, Serbia, the Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, the
Solomon Islands, Somalia, South Africa, South Korea, Spain, Sri Lanka, St. Kitts & Nevis,
St. Lucia, St. Vincent and the Grenadines, Suriname, Swaziland, Sweden, Switzerland,
Taiwan, Tajikistan, Tanzania, Thailand, Togo, Tonga, Trinidad & Tobago, Tunisia, Turkey,
Turkmenistan, Tuvalu, Uganda, Ukraine, the United Arab Emirates, the United Kingdom,
Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zaire, Zambia, and
Zimbabwe453730-002
●For use in Japan453730-291
●For use in the United States and Canada 453730-001
Component replacement procedures 63 
						

							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 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 55).
5.Remove the hard drive bay cover (see 
Hard drive on page 59)
Remove the WLAN module:
1.Disconnect the wireless antenna wires (1) from the from the wireless module.
2.Remove the 2 Phillips PM2.0×4.0 screws (2) securing the WLAN module to the computer.
3.Remove the WLAN module (3) by pulling it away from the slot at an angle. (The edge of the module
opposite the slot rises away from the computer.)
NOTE:WLAN modules are designed with a notch (4) to prevent incorrect insertion into the WLAN
module slot.
Reverse this procedure to install a WLAN module.
64 Chapter 4   Removal and replacement procedures 
						

							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 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 WWAN 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 power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4.Remove the battery (see 
Battery on page 55).
Remove the WWAN module:
1.Loosen the Phillips PM2.5×6.0 captive screw (1) that secures the WWAN module cover to the
computer. (The edge of the module opposite the slot rises away from the computer.)
2.Lift the inside edge of the cover and slide out to disengage the tabs (2).
3.Remove the cover (3).
4.Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.
Component replacement procedures 65 
						

							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 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 55).
Remove the memory module:
1.Position the computer with the front toward you.
2.Loosen the Phillips PM2.5×6.0 captive screw (1) that secures the memory module compartment
cover to the computer.
Component replacement procedures 67 
						

							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 into the memory
module slot.
Reverse this procedure to install a memory module.
68 Chapter 4   Removal and replacement procedures 
						

							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 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 55).
5.Remove the hard drive bay cover (see 
Hard drive on page 59).
Remove the RTC battery:
1.Disconnect the RTC battery cable (1) from the system board.
2.Remove the RTC battery (2).
Reverse this procedure to install the RTC battery.
Component replacement procedures 69 
						

							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 assembly internal components replacement part numbers, see 
Display
assembly on page 80.
Before removing the camera/microphone 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 power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4.Remove the battery (see 
Battery on page 55).
Remove the camera/microphone module:
1.Turn the computer display-side up, with the front toward you, and open the display as far as it will
open.
2.Flex the top edge (1), and the inside edges of the left and right sides (2) of the display bezel until
the bezel disengages from the display enclosure.
3.Release the display bezel top edge (3).
70 Chapter 4   Removal and replacement procedures 
						

							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 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 55).
Remove the keyboard:
1.Turn the computer upside down, with the front toward you.
2.Remove the two Phillips PM2.5×17.0 screws (1), and the Phillips PM2.5×9.0 screw (2) that secure
the keyboard to the computer.
3.Turn the computer display-side up, with the front toward you.
4.Open the computer as far as possible.
72 Chapter 4   Removal and replacement procedures