HP PROBOOK 4520S Service Manual

WWAN module
NOTE: Only computers with UMA graphics include a WWAN module.
NOTE: The spare part number for the HP un2420 Broadband Module is 531993-001.
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).
5. Remove the switch cover and keyboard (see
Switch cover and keyboard on page 56)
Remove the WWAN module:
1. Position the computer right-side up with the front toward you.
2. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.
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. The
terminals and cables are both identified by number and color.
3. Remove the two Torx M2.5×6.0 screws (2) that secure the WWAN module to the computer. (The
edge of the module opposite the slot rises away from the computer.)
76 Chapter 4 Removal and replacement procedures

HP PROBOOK 4520S Specifications

General

Bus type	DMI
Stepping	C2
Tjunction	105 °C
Processor cache	3 MB
Processor cores	2
Processor model	i3-330M
System bus rate	2.5 GT/s
Processor family	Intel® Core™ i3
Processor series	Intel Core i3-300 Mobile Series
Processor socket	BGA 1288
Processor threads	4
Processor codename	Arrandale
Processing Die size	81 mm²
Processor frequency	2.13 GHz
Processor cache type	Smart Cache
Processor lithography	32 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	2.0
Processor operating modes	64-bit
ECC supported by processor	No
PCI Express configurations	1x16
Thermal Design Power (TDP)	35 W
Maximum number of PCI Express lanes	16
Number of Processing Die Transistors	382 M
Motherboard chipset	Intel® HM57 Express
HDD speed	7200 RPM
HDD interface	SATA II
Optical drive type	DVD Super Multi DL
Card reader integrated	Yes
Total storage capacity	320 GB
Display diagonal	15.6 \
Display resolution	1366 x 768 pixels
Native aspect ratio	16:9
Memory slots	2x SO-DIMM
Internal memory	3 GB
Memory clock speed	1333 MHz
Internal memory type	DDR2-SDRAM
Memory layout (slots x size)	1 x 1 + 1 x 2 GB
Discrete graphics card model	AMD Mobilty Radeon HD 4330
On-board graphics card model	Intel® HD Graphics
Discrete graphics card memory	0.512 GB
On-board graphics card base frequency	500 MHz
On-board graphics card dynamic frequency (max)	667 MHz
Type	PC
Wireless technology	802.11b/g/n
Intel segment tagging	Enterprise
Audio system	HD
Bluetooth version	2.1+EDR
Networking features	Gigabit Ethernet
Trial software	Corel Home Office; Microsoft Office Professional 2007; WinZip 12;
Operating system installed	Windows 7 Professional
Battery life (max)	5 h
Number of battery cells	6
Charging port type	DC-in jack
Serial ports quantity	0
USB 2.0 ports quantity	3
Sustainability certificates	ENERGY STAR
Processor code	SLBNF
Processor ARK ID	47663
Processor package size	rPGA 37.5x 37.5, BGA 34x28 mm
Graphics & IMC lithography	45 nm
Supported instruction sets	SSE4.1, SSE4.2
Country of origin	China

Weight and Dimensions

Depth	249.6 mm
Width	371.8 mm
Weight	2390 g
Height (front)	27.7 mm