HP 4520S, 4720S manual

Page 171

15.Remove the backlight cables (1) from the clip (2) in the display panel.

16.Turn the display panel upside-down.

WARNING! The backlight contains mercury. Exercise caution when removing and handling the backlight to avoid damaging this component and causing exposure to the mercury.

17.Remove the backlight frame from the display panel.

Display 161

Image 171
Contents HP ProBook 4520s Notebook PC HP ProBook 4720s Notebook PC First Edition March Document Part Number Revision Publication date Description MSG revision historyIv MSG revision history Safety warning notice Vi Safety warning notice Table of contents Computer Setup 122 Specifications 132 Recycling 157 Battery Display Index 163 Processors Product descriptionProduct description Category Description HP ProBook 4520s UMA 4720s Discrete MemoryHard drives Modem Optical drivesDiskette drive Audio/visualExternal media CardsPorts Pointing devices PowerOperating system Preinstalled with Microsoft Office KeyboardCategory Description HP ProBook 4520s UMA 4720s Discrete Web Support Restore mediaPage Top Components TouchPadComponent Description Lights Buttons, switches, and speakers select models only Fn key KeysFront components Left-side components Right-side componentsBottom components Display Component Wireless antennasAdditional hardware components Illustrated parts catalog Service tagComputer major components Item DescriptionFor use only with computers with 17.3-in displays Illustrated parts catalog Top cover Power button boardThermal shield SpeakersFan/heat sink assembly Description Bluetooth moduleBroadcom 4312G 802.11b/g WiFi adapters Broadcom 4322 AGN, 802.11a/b/g/n 593836-001 Intel Core processors Base enclosure BatteryModem module Memory module750-GB, 5400-rpm 598699-001 640-GB, 5400-rpm 617667-001 Display assembly components Description Spare part number Display bezelWebcam module Plastics Kit Description Spare part number Display Hinge KitLCD Cable Kit with webcam cable Description Spare part number Base Cable Kit Cable KitsDisplay cable, HD+ 629030-001 Description Spare part number Misc LCD Cable KitDescription Spare part number Mass storage devicesItem Description Spare part number Miscellaneous partsDescription Spare part number Screw Kit, includes 598672-001 Spare part Description Number Sequential part number listingSequential part number listing Illustrated parts catalog 598670-001 Illustrated parts catalog Sequential part number listing Illustrated parts catalog Sequential part number listing 617667-001 640-GB, 5400-rpm hard drive Sequential part number listing Preliminary replacement requirements Service considerationsTools required Cables and connectors Electrostatic discharge damage Grounding guidelinesPackaging and transporting guidelines Material Use Voltage protection level Equipment guidelinesService tag Component replacement proceduresComputer feet Battery Switch cover and keyboard Page Page Page Memory module Optical drive Page Power button board Page Speakers Page Thermal shield Page Page Intel Centrino Wireless-N1000 802.11 b/g Wlan moduleBroadcom 4312 802.11b/g Wlan modules Intel Wi-Fi Link 1000, 802.11b/g/n Wlan module Adapter Component replacement procedures Page Page Wwan module Page Heat sink and fan Page Page Page Page Intel Celeron processor ProcessorDescription Spare part number Intel Core processors Intel Pentium processorsPalm rest Description Spare part number Page Hard drive Page Display assembly on computers with 17.3-in displays Page Page Page Page Page Page Display assembly on computers with 15.6-in displays Description Spare part number Page Page Page Page Page Top cover Page Page Page Description Spare part number RTC battery RTC batteryPage Bluetooth module Modem module Page Audio board Page System board Page Page USB connector assembly Remove the thermal shield see Thermal shield on RJ-11 connector assembly Power connector assembly Page Computer Setup Starting Computer SetupUsing Computer Setup Restoring factory settings in Computer Setup Select To do this Computer Setup menusIgnore Changes and Exit Security menu System Configuration menu Use of a USB keyboard in Computer Setup even Select Computer Setup Enable/disable the eSATA port select models only Computer specifications Display specifications Viewing angle @ CR10 21.0 cm35.98 cm 39.1 cmHard drive specifications Cache buffer DVD-ROM Drive specificationsAccess time Applicable discWrite DVD±RW Double-Layer Combo Drive specificationsTransfer mode Applicable disc ReadCD-DA, CD+EG, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA Applicable disc Read WriteBackup and recovery in Windows OverviewBacking up your information Select Start All Programs Maintenance Backup and Restore Using the Windows recovery tools Performing a recoveryUsing a Windows 7 operating system DVD purchased separately Using f11Backup and recovery in Windows Vista Performing a recovery Using the Windows recovery tools Follow the on-screen instructions Backup and recovery Backup and recovery in Windows XP Recovering your information Page Pin Signal Audio-in microphoneAudio-out headphone External monitor Hdmi RJ-11 modem Universal Serial Bus RJ-45 networkRequirements for all countries and regions Power cord set requirementsCountry/region Accredited agency Applicable note number Requirements for specific countries and regionsRecycling BatteryPage Page Page Page Page Index HP QuickLook light USB DVD
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4720S, 4520S specifications

The HP ProBook 4720s is a well-engineered business laptop that combines performance, durability, and affordability, making it suitable for professionals and small business owners alike. Introduced as part of the HP ProBook series, this model stands out for its robust build quality and essential features tailored to meet the demands of various work environments.

One of the main features of the HP 4720s is its 17.3-inch display. This spacious screen provides a generous workspace for multitasking, with a resolution of 1600 x 900 pixels. The anti-glare technology helps reduce reflections, ensuring that users can work comfortably in different lighting conditions. The large screen also makes it suitable for presentations and sharing visuals with colleagues.

Under the hood, the HP ProBook 4720s is equipped with Intel's second generation Core processors. The inclusion of options such as the Intel Core i5 and i7 provides users with the power necessary for demanding applications while maintaining energy efficiency. With up to 8GB of DDR3 RAM, multitasking is seamless, allowing users to run multiple applications simultaneously without experiencing lag.

Storage options are varied, including traditional hard drives and solid-state drives which offer faster data access speeds. This flexibility ensures that users can choose the configuration that best fits their needs, balancing performance and storage capacity.

In terms of connectivity, the HP 4720s offers a range of ports including USB 2.0 and USB 3.0, HDMI, and Ethernet, providing users with versatile options for connecting peripherals and external displays. The integrated webcam and microphone are essential for video conferencing, essential in today’s remote working environment.

Another characteristic that makes the HP ProBook 4720s stand out is its security features. The optional fingerprint reader and HP’s Client Security software provide enhanced protection for sensitive data. This focus on security is crucial for professionals who handle confidential information.

Moreover, the laptop's design features a sturdy chassis that meets military specifications for durability. This ruggedness is complemented by a spill-resistant keyboard, which enhances its usability in various environments.

Overall, the HP ProBook 4720s embodies a balance of performance, functionality, and durability. Its features cater well to business users seeking a reliable device, making it a commendable choice in the competitive landscape of laptops. Whether for office use or on-the-go productivity, the HP 4720s delivers a solid computing experience.