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Notebook Computer

Versa

E120 DayLite

™

User’s

Guide

819-200887-replica 3/21/02 4:18 PM Page 1

Содержание VERSA DAYLITE E120

Страница 1: ...otebook Computer ersa E120 DayLite User s Guide ...

Страница 2: ...entation by customers of each product may vary the suitability of specific product configurations and applications must be determined by the customer and is not warranted by NEC Solutions To allow for design and specification improvements the information in this document is subject to change at any time without notice Reproduction of this document or portions thereof without prior written approval...

Страница 3: ...2 Around the Left Side of the System 1 13 Around the Right Side of the System 1 14 Around the Bottom of the System 1 15 2 Getting Started NEC VersaGlide Touchpad 2 2 VersaGlide Adjustments 2 3 VersaGlide Tips 2 3 Power Sources for Your NEC Versa 2 3 AC Adapter 2 4 Connecting the AC Adapter 2 5 Powering On Your System 2 6 System Batteries 2 7 Primary Battery 2 7 Secondary Battery 2 7 Using the Prim...

Страница 4: ...Menu 3 8 Password Protection 3 9 Hard Disk Drive Passwords 3 10 Establishing Hard Disk Drive Passwords 3 10 Changing Hard Disk Drive Passwords 3 11 Using Hard Disk Drive Password Protection 3 11 Moving the Hard Disk Drive 3 11 Boot Menu 3 12 Exit Menu 3 12 Updating the BIOS 3 13 Obtaining the BIOS Update 3 13 Preparing the BIOS Update Diskette 3 13 Performing the BIOS Update 3 14 4 Using the Opera...

Страница 5: ... NEC CD RW CD 4 16 5 Adding Expansion Devices USB Devices 5 2 USB Diskette Drive 5 3 USB CD ROM Drive 5 4 Using the USB CD ROM Drive 5 5 Handling CDs 5 6 USB CD R RW Drive 5 7 Using the USB CD R RW Drive 5 10 Handling CDs 5 11 Memory Module 5 12 Installing a Memory Module 5 12 Removing a Memory Module 5 14 PC Cards 5 15 Inserting a PC Card 5 15 Removing a PC Card 5 16 CF Cards 5 17 Inserting a CF ...

Страница 6: ...oblem Checklist 8 2 Startup Problems 8 3 POST Error Messages 8 4 If You Need Assistance 8 5 9 Getting Service and Support Service and Support Contact Information 9 2 Web Site 9 3 Support Services 9 4 E mail to Support Services 9 4 A Setting Up a Healthy Work Environment Making Your Computer Work for You A 2 Arrange Your Equipment A 3 Adjust Your Chair A 3 Adjust Your Input Devices A 4 Adjust Your ...

Страница 7: ...Contents vii C Frequently Asked Questions External Mouse C 2 Display C 2 PC Cards C 2 Diskette Drive C 3 Booting C 4 Power Management C 4 Battery Charging C 6 Miscellaneous C 7 Glossary Index ...

Страница 8: ...sion Devices to add and use USB devices such as optical drives and to add a PC Card a CF Card an external monitor headphones a printer or speakers This chapter also includes installation information for adding a memory module and a secondary battery to the NEC Versa E120 DayLite system Chapter 6 Communicating with Your NEC Versa for essential information about using the built in MDC modem and LAN ...

Страница 9: ...type For example type dir and press Enter Related Documents See the following documents for additional information on your NEC Versa notebook computer NEC Versa E120 DayLite Quick Setup The Quick Setup shows how to quickly get your system connected and powered on NEC Versa E120 DayLite Release Notes Release Notes provide additional information about your notebook computer that was not available at...

Страница 10: ...NEC Versa Before You Begin About Your NEC Versa Notebook Around the Front of the System Around the Back of the System Around the Left Side of the System Around the Right Side of the System Around the Bottom of the System ...

Страница 11: ... completing the steps in the quick setup sheet that comes with your computer your NEC Versa E120 DayLite system is ready to go To get started do the following Read Appendix A Setting Up a Healthy Work Environment for guidelines that help you use your computer productively and safely Information includes how to set up and use your computer to reduce your risk of developing nerve muscle or tendon di...

Страница 12: ...nal CRT port and many other features These features can make the life of a traveling executive a lot easier at home and in the office The Versa E120 DayLite notebook comes with 256 MB of system memory and is easily upgradeable supporting up to 768 MB of memory You have virtually unlimited storage capacity with the hard disk system which can handle most 2 5 inch 9 5 mm IDE industry standard drives ...

Страница 13: ...ver see the section Front Features to locate the latch Base Unit The base unit of your NEC Versa notebook offers the features shown in the following figure Feature descriptions follow the figure After extended use the surface of the base unit below the keyboard might become hot to the touch LCD panel and base unit A LCD Panel E Keyboard B Shortcut Buttons F Drive and Keyboard Status LEDs C Power B...

Страница 14: ...on Powers the system on and off see the section System Controls Shortcut Buttons Launch your browser or your e mail application see the section System Controls NEC VersaGlide Touchpad Works like a standard computer mouse Simply move your fingertip over the VersaGlide to control the position of the cursor Use the selection buttons below the VersaGlide to select menu items See NEC VersaGlide Touchpa...

Страница 15: ... The power button is a smart switch You can configure the power button to go into Standby or Hibernate mode or to power off when pressed With Windows XP you can also configure the power button to go into a Do nothing or Ask me what to do mode of operation Note See Windows Power Management in Chapter 4 for information about managing system power resources The default power button operation is to sh...

Страница 16: ...e unable to power off the system use the power override Press the power button and hold it in place approximately 4 to 5 seconds until the system powers off Shortcut Buttons The Versa E120 DayLite system has two shortcut buttons that you can configure to launch your default Internet browser and your default e mail application See One Touch Start Button Settings Utility in Chapter 4 for information...

Страница 17: ... to indicate that battery power is at 10 capacity or less Lights amber blinks when in Standby mode to indicate that battery power is at 4 capacity or less The Power Status LED is off when system power is off or when the system is in Hibernate mode see Hibernate in Chapter 4 Battery Charging LED Lights to indicate battery charging activity Lights amber when the primary battery is charging Blinks am...

Страница 18: ...for the location of these LEDs Drive Activity LED Lights when the NEC Versa accesses the hard disk Caps Lock LED Lights when caps lock is in effect Scroll Lock LED Lights when scroll lock is in effect Num Lock LED Lights when num lock mode is active In this mode you can use the embedded numeric keypad Keyboard Panel The NEC Versa E120 DayLite keyboard has a standard QWERTY key layout Models shippe...

Страница 19: ... Application key provides quick access to shortcut menus This key acts like a right mouse button Floating Window key displays the Start menu Numeric Keypad Pressing Fn Num Lk on the keyboard activates the numeric keypad numbers and functions printed in yellow on top of the keys The keypad lets you type numbers and mathematical operands as you would on a calculator The keypad is ideal for entering ...

Страница 20: ...using the Prt Sc key Front Features The features on the front edge of the system are described after the figure Front features A Microphone In Jack C Volume Control B Headphone External Speaker Jack D LCD Panel Latch Microphone In Jack Allows you to connect an external microphone for monophonic recording or amplification through the unit Headphone External Speaker Jack Lets you plug in stereo head...

Страница 21: ... possible to keep the battery pack and internal CMOS battery charged USB Port Allows you to easily and conveniently connect a USB equipped peripheral device to the NEC Versa There are many USB devices available for example storage devices printers keyboards mouse monitors scanners and digital cameras to expand system capabilities The NEC Versa E120 DayLite has two additional USB ports on the right...

Страница 22: ...odem Port Use this port to connect the system s internal V 90 fax modem to an analog telephone line for access to fax machine emulation telephone answering machine functions and the Internet LAN Port Use this port to connect the system to a local area network LAN CF Card Slot Allows you to insert a Type I or Type II CompactFlash CF Card into this slot for connection to a wide variety of options su...

Страница 23: ...evices support Plug and Play connectivity for transfer rates of up to 400 Mbps PC Card Eject Button Press this button to release a PC Card PC Card Slot Allows you to insert a Type I or Type II PC Card into this slot for connection to a variety of options such as flash memory SCSI adapters LAN connections and hard drives USB Ports Allows you to easily and conveniently connect a USB equipped periphe...

Страница 24: ...Contains a socket for the installation of an optional Mini PCI module when available Memory Module Bay Contains a socket for memory upgrade See Chapter 5 for detailed memory upgrade information Secondary Battery Bay Connector Allows the connection of a secondary lithium ion Li Ion battery pack See Chapter 2 for information about installing charging and using the secondary battery Stereo Speakers P...

Страница 25: ...stalling charging and using the primary battery See Windows Power Management in Chapter 4 to fully utilize battery power in your NEC Versa notebook Battery Lock Release Buttons Press the buttons towards each other to remove the primary battery pack See Chapter 2 for detailed battery installation information ...

Страница 26: ...2 Getting Started NEC VersaGlide Touchpad Power Sources for Your NEC Versa AC Adapter System Batteries Using the Primary Battery Using a Secondary Battery System Care ...

Страница 27: ...nd hold then drag your finger across the VersaGlide touchpad equivalent to a click and drag of the primary mouse button Press the scroll button up or down to scroll your document or screen VersaGlide features A NEC VersaGlide touchpad C Scroll Button B Left Button D Right Button Try all of the VersaGlide features and decide which you prefer If you find the double tap or any of the other features d...

Страница 28: ...he NEC Versa notebook with your keyboard and VersaGlide at a comfortable height Keep your forearms parallel to the floor Your wrists should be relaxed and straight While using the keyboard and VersaGlide keep your shoulders and arms as relaxed as possible Take regular breaks from the computer to rest your eyes Perform stretching exercises to relax your fingers hands wrists forearms and shoulders S...

Страница 29: ... AC adapter charges the battery when it is connected whether the NEC Versa notebook is powered on or off AC adapter A AC Adapter Cable C Power Cable B AC Adapter D Wall plug Do not attempt to disassemble the AC adapter The AC adapter has no user replaceable or serviceable parts inside Dangerous voltage in the AC adapter can cause serious personal injury or death The AC adapter is intended for use ...

Страница 30: ...er cable to the power port at the rear of your NEC Versa notebook 2 Plug one end of the AC power cable into the AC adapter and the other end into a properly grounded 120 or 240 volt 50 or 60 Hz wall outlet Connecting the AC adapter Do not cover or place objects on the AC adapter Keeping the adapter clear of objects lets the adapter cool properly during use Only use the AC adapter that comes with y...

Страница 31: ...240 volt 50 or 60 Hz wall outlet Using the AC adapter wall plug Powering On Your System Power on the system as follows 1 Locate the latch on the front of the LCD panel slide it to the right and raise the panel see Front Features in Chapter 1 2 Locate the power button and press it to turn on system power For additional information about power button features and power LED status see Chapter 1 Intro...

Страница 32: ... installing or removing the primary battery see the section Replacing the Battery later in this chapter For more information about the primary battery see the section Using the Primary Battery Note See Windows Power Management in Chapter 4 to fully utilize battery power in your NEC Versa notebook Secondary Battery You can install an optional secondary lithium ion battery on the bottom of your NEC ...

Страница 33: ...nd an optional battery s power level If your system is configured default setting to display the Power icon on the taskbar the following taskbar icons appear An electrical plug appears when the system is connected to an AC power source A battery icon appears when the system is not connected to an AC power source Use the system s power meter to determine battery status Access the system s power met...

Страница 34: ...and a wall outlet Returning the Battery to its Normal State If battery performance drops for example you experience shorter work times try one of the following procedures to improve battery performance Remove and reinstall the battery in your NEC Versa notebook and fully recharge the battery to 100 Refresh the battery using the Battery Refresh function in the Exit menu of the BIOS Setup utility se...

Страница 35: ...tery out of the reach of children Replacing the Primary Battery The following symptoms indicate that battery life is nearing an end Replace batteries that display these symptoms Shorter work times Discoloration warping Hot to the touch Strange odor Replace the battery installed in your NEC Versa system as follows Only use batteries that are designed for your NEC Versa computer Installing another m...

Страница 36: ... battery lock button to the left release position Slide the release button to the right and hold firmly While holding the release button slide the battery out of the battery bay Removing the primary battery A Battery Release Button C Primary Battery B Battery Lock Button ...

Страница 37: ...slot and connector Align the grooves on the sides of the battery with the rails in the battery bay Slide the battery into the battery bay Press the battery into the connector to secure it Press the battery lock button to the right locked position Installing the primary battery A Battery Bay Slot D Primary Battery B Battery Bay Connector E Battery Groove left side C Battery Bay Rail 5 Turn the syst...

Страница 38: ... To avoid personal injury and property damage read these battery precautions on handling charging and disposing of Li Ion batteries Keep the battery away from heat sources including direct sunlight open fires microwave ovens and high voltage containers Temperatures over 140º F 60ºC may cause damage Do not drop or bump the battery Do not disassemble the battery Do not solder the battery Do not punc...

Страница 39: ...r installation information Use the secondary battery in addition to the primary battery to extend the amount of time you can run your system on battery power Do not run the system on secondary battery power without the primary battery in place The connector in the primary battery bay should not be exposed An exposed connector can cause a danger if it is accidentally touched or if it connects with ...

Страница 40: ...100 240 volts and 50 or 60 Hz AC Never use the AC adapter if the voltage falls outside of this range Watch for this when traveling to other countries Turn computer power off before attaching or removing non plug and play devices that are not warm or hot swappable Do not push any foreign objects into the NEC Versa bays connectors and slots Do not set the computer on top of a magnetized area Doing s...

Страница 41: ...ystem and its components away from organic solvents or corrosive gases Avoid leaving the system and its components in direct sunlight or near heat sources Routine Cleaning Clean or dust your system as follows Never use harsh solutions household cleaners or spray cleaners that contain caustic materials on the NEC Versa computer These cleaners are usually high in alkalinity which is measured in pH U...

Страница 42: ...3 Using the BIOS Setup Utility Introducing BIOS Setup Entering BIOS Setup Checking Setting System Parameters Updating the BIOS ...

Страница 43: ...ns system configuration information when system power is off The lithium CMOS battery charges when your NEC Versa notebook is connected to AC power Entering BIOS Setup Access the BIOS utility at power on Just press F2 when the following prompt appears Press F2 to Enter BIOS Setup When you press F2 to enter BIOS Setup the system interrupts the Power On Self Test POST and displays BIOS Setup utility...

Страница 44: ... Menu After you press F2 the system displays the BIOS Setup Main Menu screen similar to the following menu BIOS Setup Main Menu Use the up and down arrow keys located on the lower right corner of the keyboard to move through the BIOS Setup menu items ...

Страница 45: ... the screen This area lists parameters and their current settings Available Options and Help The right side of the screen This area lists alternate settings and Help text for each parameter Key Legend The bottom of the screen These lines display the keys that move the cursor and select parameters Options that are grayed out are not available for the current selection ...

Страница 46: ... between subfields For example for System Time Tab moves the cursor from hour to minute to second Enter Brings up a parameter sub menu F9 Reapplies the factory shipped defaults F10 Saves and exits the BIOS Setup utility Checking Setting System Parameters The BIOS Setup consists of a number of screens each representing a specific area of the BIOS The following tables list the BIOS parameters their ...

Страница 47: ...cally detected CPU Speed automatically detected BIOS Version automatically detected System Time Sets the time enter the current hour minute and second in hr min sec 24 hour format To set the time use the Tab Shift Tab or Enter keys to move from field to field Use the F5 F6 keys to change the numbers within each field Date Sets your NEC Versa s calendar month day and year The calendar clock is year...

Страница 48: ... 8 Mb 16 Mb 32 Mb BootUp Message Enabled Disabled Summary Screen Disabled Enabled Silent Boot Enabled Black Disabled Legacy USB Support Enabled Disabled USB Operation Mode 1 1 Mode 2 0 Mode Remote Power on Disabled Enabled Intel SpeedStep Technology Enabled Disabled NumLock on Boot Specifies whether NumLock is enabled when the system boots Internal Mouse Sets the mouse function Enabled allows the ...

Страница 49: ...set to 2 0 Mode the system uses the faster USB 2 0 standard Remote Power on When set to Enabled allows the LAN board to wake the system Intel SpeedStep Technology When enabled Intel SpeedStep technology is controlled by the operating system or applet The system works at the optimized performance When disabled the system operates in a power conservation mode Security Menu Use the Security menu to c...

Страница 50: ...ite protect Setting to Write Protect protects the hard disk boot sector against viruses Password Protection Your NEC Versa supports a password for system security Keep in mind that you must set the supervisor password before the BIOS Setup utility allows you to set a user password Once you set a supervisor password you must enter it before you can enter BIOS Setup To establish password protection ...

Страница 51: ...d protection If you set the master and user password on a hard drive password security can never be disabled Passwords can be changed If the master password is forgotten and the drive is installed in another system you cannot access the data on the hard drive If the hard drive is installed in another NEC Versa system with hard disk drive security enabled the password must be entered to allow acces...

Страница 52: ...nd user password on a hard drive password security can never be disabled Passwords can be changed If the master password is forgotten and the drive is installed in another system you cannot access the data on the hard drive If the hard drive is installed in another NEC Versa system with hard disk drive security enabled the password must be entered to allow access to the hard drive If this NEC Vers...

Страница 53: ...isabled disables the network boot function Exit Menu The Exit menu provides the following options Exit Saving Changes Saves the changes you may have made to the BIOS settings and exits the BIOS Setup utility Exit Discarding Changes Exits the BIOS Setup utility without saving Setup data Load Setup Defaults Resets all BIOS settings to what they were when the system was shipped from the factory Disca...

Страница 54: ...iskette Perform the BIOS Update Obtaining the BIOS Update If you are informed that the default BIOS needs an update contact NEC Solutions Support Services at 1 800 632 4525 or access the NEC Solutions Web site www necsolutions am com to obtain a copy of the BIOS update Note If you purchased and are using this computer outside the U S or Canada please contact a local NEC office or dealer in your co...

Страница 55: ...lier in this chapter Remove any bootable CDs from any installed USB optical drive Write down what you ve done to customize your BIOS settings Once you have prepared the system for a BIOS update perform the following steps 1 Insert the BIOS Update diskette into the diskette drive 2 Power on the computer with the diskette in the diskette drive The computer boots and automatically loads the utility R...

Страница 56: ... to continue The utility updates the BIOS Power off your computer The next time you power on your computer you will have the latest NEC Versa E120 DayLite computer BIOS revision level 8 Power on your computer A CMOS Checksum message appears and prompts you to press F2 to enter Setup 9 Press F2 to enter Setup and restore the default parameter settings 10 Reconfigure Setup with the custom settings y...

Страница 57: ...ating System and Utilities Windows Introduction Windows Power Management NEC Customize Utility One Touch Start Button Settings Utility Application and Driver CD NEC Online Documentation Product Recovery CD NEC CD RW CD ...

Страница 58: ...ows XP displays a menu with programs and tools such as Internet Explorer My Computer Control Panel and Printers and Faxes For a description of Windows XP icons buttons and menus take the online Windows XP tour The Windows 2000 operating system has a traditional Windows desktop with icons such as My Computer and Internet Explorer on the desktop Left click the Windows Start button to select the trad...

Страница 59: ...technology Windows 2000 option Power Schemes Use the Power Schemes options to define the appropriate Power scheme for your system and to set timeouts for standby LCD panel and hard disk Define parameters for your system when running under AC plugged in or DC running on batteries power Power Schemes Parameter Default Setting Alternate Setting s Power Schemes Portable Laptop Home Office Desk Present...

Страница 60: ...3 hours Windows 2000 After 1 hours 10 15 20 25 30 45 minutes 1 2 3 4 5 6 hours Never System hibernates Running on batteries Windows XP After 2 hours Windows 2000 After 10 minutes 10 15 20 25 30 45 minutes 1 2 3 4 5 6 hours Never Power Schemes Defines the most appropriate power scheme for your computer Turn off monitor Selects the time delay before your LCD panel turns off Turn off hard disks Selec...

Страница 61: ...ication Display message Sound alarm Alarm Action Windows XP Hibernate Windows 2000 Standby Power Off Standby Hibernate Run a program None When the alarm occurs run this program Enabling an Alarm action enables Force stand by or shutdown even if program stops responding setting Low battery alarm Allows you to define a low battery alarm percentage notification and system action Critical battery alar...

Страница 62: ...how icon on the taskbar Determines whether or not the Power Meter icon displays on the taskbar Prompt for password when computer goes off standby Determines whether or not the system prompts for your Windows password when resuming from Standby When I close the lid of my computer Defines the system action when the LCD panel is closed When I press the Power button on my computer Defines the system a...

Страница 63: ...operties However the default settings are recommended for optimal performance and battery conservation Recognizing Windows Power Management States It s important to recognize your system s behavior when in each of these power management states The following table describes the system behavior for each power management state Windows Power Management Behavior Feature LCD Timeout Standby STR Hibernat...

Страница 64: ... Utility Screen The NEC Customize utility screen has the following features A window at the top half of the screen lists the available options The window below the options list displays a description of each option when the option is highlighted The Launch button initiates a selected option when clicked The More Info button provides an overview of the NEC Customize utility The Exit button closes t...

Страница 65: ...Utility Click One Touch Start Button Settings Utility The utility launches 3 For each button browse and select the default program you wish to launch You can rename the program for example My browser Note The name of the program displays on your screen by default Uncheck the box for Display on screen to display name on screen if you do not want to display the name 4 Click OK Select Yes to save the...

Страница 66: ...lude applications drivers utilities Internet browsers and the NEC Online Documentation Description Located in the bottom portion of the dialog box the text describes the selected or highlighted software category or application driver etc Install Clicking the Install button installs the selected software View Clicking the View button displays installation instructions for those utilities that are n...

Страница 67: ...e If you determine that you need to restore your system to its initial installation state use the instructions that follow Note Only use the Product Recovery utility to restore your system to its initial installation state as a last resort Check the problem checklist in Chapter 8 for information about solving problems before using the CD The Product Recovery utility provides options that either re...

Страница 68: ...allows you to format only the primary partition without affecting the extended partition s Partition Only formats drive C of a multiple partitioned drive and restores drive C to its initial installation state To use the Partition Only option drive C must be equal to or greater than 1 GB Additional partitions for example drives D E etc remain intact Note Use the Partition Only restore option if you...

Страница 69: ...se your restore option carefully to prevent losing data and applications installed on your system 5 Read the Warning screen A warning displays indicating that your hard disk is about to be erased 6 Select Continue to proceed to perform a Full Disk Drive restore If you select Back the recovery utility returns to the prior screen which has an exit option If you select Continue an NEC screen loads 7 ...

Страница 70: ...ons drives or the Partition Only restore process will erase them completely The Partition Only restore option deletes all files on drive C and replaces them with the original factory installed files Only use the Partition Only restore option if the preinstalled software on drive C is unusable Use the Product Recovery utility to perform a Partition Only restore as follows 1 Check the Product Recove...

Страница 71: ...ption If you select Continue an NEC screen loads 7 At the NEC screen click Continue to start the recovery process A screen with progress bars is displayed and indicates the progress of the recovery Do not turn off or disturb the system during the recovery process If you are restoring the Windows 2000 operating system the recovery program prompts you for the next CD If you are restoring Windows 200...

Страница 72: ...rograms from a CD and write information to a CD The NEC CD RW CD provides a driver CDINIT and an application Easy CD Creator The materials that come with the CD describe how to install and use your software On screen prompts provide guidelines during the installation Once the software is installed access the on screen help for more information about using and configuring your CD R RW drive ...

Страница 73: ...5 Adding Expansion Devices USB Devices Memory Module PC Cards CF Cards Secondary Battery Monitor IEEE 1394 Devices Audio Options ...

Страница 74: ...d three devices one to each USB port add multiple devices to each USB port by daisy chaining each device to the next device each device must have a USB port add multiple devices to each port through an optional multiple USB port hub To connect an external USB device to your notebook plug the USB device into one of the USB ports See Chapter 1 to locate USB ports on your system Some USB devices migh...

Страница 75: ...tions When the indicator is lit do not eject the diskette unplug the USB cable or turn off the NEC Versa notebook Doing so can cause loss of data from your diskette Eject button Ejects the diskette USB cable Connects to a USB port on your NEC Versa notebook Ease of use Allows connection or removal from your notebook at any time with notebook power on or off USB diskette drive features A USB Cable ...

Страница 76: ...CDs The USB CD ROM drive is fully compatible with Kodak multisession Photo CD discs and standard audio CDs The USB CD ROM drive is automatically assigned an available drive letter CD ROM drive features are shown in the following figure see the descriptions following the figure USB CD ROM drive side and front features A Phones headset Jack D Status LED B Volume Control E Play Stop Button C Release ...

Страница 77: ... this connector located at the back of drive Ease of use The USB CD ROM can be disconnected or connected to your notebook at any time with notebook power on or off Using the USB CD ROM Drive To use the USB CD ROM drive follow these steps 1 Connect the USB cable Plug the small end of the USB cable into the USB connector on the back of the drive Plug the large end of the USB cable into the USB port ...

Страница 78: ...plays if it has an auto start file If it does not auto start launch the CD from My Computer Handling CDs When handling CDs keep the following in mind Always pick up the disc by its edges Avoid scratching or soiling either side of the disc Do not write on or apply labels to the data side of the disc Keep the disc away from direct sunlight or high temperatures Clean fingerprints or dust from the dis...

Страница 79: ... the Easy CD Creator application allows you to write information to a CD and to back up information from your hard disk drive to a CD For detailed information about using the USB CD R RW drive and installing the Easy CD Creator software refer to the accessory sheet that ships with the drive The USB CD R RW drive features are shown in the following figure see the descriptions following the figure U...

Страница 80: ...5 8 Adding Expansion Devices USB CD R RW drive rear features A DC In 6V Port C Line Out Jack B I F Port USB CD R RW drive bottom features A Mode Switch B Emergency Release Latch ...

Страница 81: ...powered on Lights amber during read operations When the LED is lit do not open the CD R RW drive cover unplug the USB cable unplug the power cable or turn off the NEC Versa notebook Doing so might cause the loss of data from the CD Power Switch Switches power on or off when the CD R RW drive is connected to AC power with the AC DC power adapter Slide the switch to power on the CD R RW drive Disk O...

Страница 82: ... USB CD R RW drive follow these steps Also refer to any instructions that might come with the drive 1 Connect the small end of the USB cable to the I F port at the rear of the USB CD R RW drive Connect the other end of the cable to the USB connector on your notebook 2 Connect the AC DC power adapter to a 115 Vac power source Plug the other end of the adapter into the DC IN connector on the rear of...

Страница 83: ... on or apply labels to the data side of the disc Keep the disc away from direct sunlight or high temperatures Clean fingerprints or dust from the disc by wiping it with a soft cloth Gently brush the cloth from the center of the disc toward the edge Avoid using benzene paint thinner record cleaner static repellent or any other chemical on the disc Chemicals and cleaners can damage the disc ...

Страница 84: ...on the bottom of your notebook See the following procedures to upgrade system memory Installing a Memory Module Follow these steps to upgrade the system memory 1 Power off the system disconnect AC power and disconnect any peripheral devices If installed remove the optional secondary battery see Secondary Battery later in this chapter 2 Locate the screw securing the memory bay cover to the bottom o...

Страница 85: ...tor Holding the memory module at a 40 degree angle to the notebook insert the module connector into the socket Firmly push the module into the socket Press down on the edge of the memory module until the locking tabs on the sides of the socket snap into place securing the module Installing the memory module A Module Alignment Notch 5 Replace the memory bay cover and its screw If removed reinstall ...

Страница 86: ... internal components discharge static electricity from yourself by touching a nearby unpainted metal surface 1 Press the locking tabs away from the sides of the module until the module pops up at an angle 2 Pull the memory module out of the slot along the angle and store it in a static free bag Removing the memory module A Memory Module B Locking Tab 1 of 2 ...

Страница 87: ...es beyond the normal card size The extension can be as large as 40 mm deep by 9 65 mm high The extension provides room for additional electronics as well as a location for external connectors Inserting a PC Card The system integrates one PC Card slot on the right side of the notebook To insert a PC Card follow these steps 1 Remove the PC Card slot cover by pressing twice on the eject button next t...

Страница 88: ...t Stop Windows alerts you if any applications are still using the card Close the application s If all applications using the PC Card are shut down services for that card are closed A message displays on the screen stating that it is safe to remove the PC Card 3 Remove the PC Card from it slot by pressing the eject button next to the slot Pull the card out Store the PC Card in a static free contain...

Страница 89: ...er by pressing twice on the eject button next to the slot Pull the cover out of the slot and save it CF card slot cover A CF Card Slot Cover B CF Card Eject Button 2 Align the CF Card so that the connector end points toward the CF Card slot and the printed label side is up 3 Insert the CF Card into the slot 4 Follow the CF Card manufacturer s instructions for using the card Removing a CF Card To r...

Страница 90: ...dary battery Installing the Secondary Battery To install the optional secondary battery pack proceed as follows see Chapter 2 for procedures to install the primary battery 1 Power off the system disconnect AC power and disconnect any peripheral devices 2 Turn the notebook over and locate the secondary battery connector cover see the following figure Open the connector cover rotate it back and pres...

Страница 91: ...ng screws directly over the locking slots on the notebook see the previous figure to locate the locking slots 6 Set the battery pack down on the notebook ensuring that the two locking screws are in the locking slots 7 Slide the battery pack toward the front of the notebook away from the primary battery until the battery pack locks in place 8 Turn the locking screws to the locked position Don t for...

Страница 92: ...One end of the cable must have a 15 pin connector for the notebook Follow these steps to connect an external monitor to your notebook 1 Check that the notebook is powered off and the monitor power switch is turned off Note The NEC Versa notebook must be powered off or suspended while the monitor is being connected 2 Open the monitor port cover and attach the 15 pin cable connector to the VGA monit...

Страница 93: ...dio Options The NEC Versa comes equipped with built in audio ports that let you record and play sound The audio ports are conveniently located at the front of the NEC Versa notebook see Front Features in Chapter 1 for port locations You can connect the following audio options an external microphone to the microphone in jack headphones to the headphone external speaker jack powered stereo speaker s...

Страница 94: ...6 Communicating with Your NEC Versa MDC Modem LAN Connection Internet Connections ...

Страница 95: ... analog cable for your convenience Use only a 26AWG phone line when connecting the modem Use the following steps to connect the analog phone cable to your modem Note When using a modem outside the U S and Canada you might need an international telephone adapter available at most electronics supply stores 1 Locate the analog phone cable that ships with the NEC Versa notebook Each end of the cable h...

Страница 96: ... use an existing account Before using the Internet Connection wizard to transfer an existing account for e mail and Internet access you need an Internet service provider ISP account and some or all of the following configuration information the dial up telephone number TCP IP settings port settings a user name logon and password your e mail address the name of a POP3 IMAP or HTTP server for incomi...

Страница 97: ... with an E mail shortcut button located above keyboard see Around the Front of the System in Chapter1 The first time that you press the E mail shortcut button the Internet Connection Wizard launches allowing you to configure your system for e mail access Once your Internet connection is configured pressing the E mail shortcut button launches your associated dial up network connection allowing you ...

Страница 98: ...7 Traveling Tips Preparing for Travel Packing for Travel Using Power Connections Getting Through Customs Connecting to the Internet ...

Страница 99: ...sembly of the system Back up your NEC Versa s hard disk Insert a fully charged battery to make sure your system is ready to quickly boot up at the airport security check Fully charge all your batteries Tape your business card to your NEC Versa AC adapter and batteries If you run your system with battery power maximize battery life by using power saving features whenever possible Take along any app...

Страница 100: ...r through customs by carrying the appropriate documentation to assure the customs agent that your system is not a recent purchase Travelers are often asked when returning to their home country whether or not they purchased the computer while outside of the country Sometimes the proof of purchase such as a bill of sale insurance policy or purchase receipt is sufficient Taking along the purchase rec...

Страница 101: ... phone can be less expensive than charging the call to your hotel room 2 Prepare your system for phone line access in another country Line access outside of a hotel may require the addition of a 9 or 8 preceding the phone number string To circumvent unusual dial tone sounds sometimes encountered in other countries you may have to modify a system configuration setting to ignore the dial tone 3 Alwa...

Страница 102: ...gured to Use DHCP for WINS Resolution you should be able to access the Internet If your TCP IP network settings are not set to use DHCP a help screen may appear or you may be directed to call the LAN provider for assistance configuring your system Follow the instructions that are provided to you completely so your settings work effectively with the provider s system If you have problems the hotel ...

Страница 103: ...8 Solving System Problems Problem Checklist Startup Problems If You Need Assistance ...

Страница 104: ...is configured correctly The display s brightness control is adjusted properly If using battery power check that the battery pack is properly inserted and fully charged Troubleshooting Problem What to Do The system does not power on If you are operating the system with battery power check that the battery pack is correctly inserted Attach the AC adapter to recharge the battery If you have the AC ad...

Страница 105: ... work Make sure the component is securely installed or connected Verify that the system parameter for the I O port configuration is set correctly in Setup Startup Problems The system displays an invalid configuration error message at power on when there are the following conditions the current configuration information doesn t match configuration information stored in Setup such as when an interna...

Страница 106: ...the map indicates a failed bit Fixed Disk 0 1 Disk Controller Failure Fixed disk is not working or not configured properly Check to see if fixed disk is attached properly Run Setup to make sure the fixed disk type is correctly identified Incorrect Drive A type run SETUP Type of floppy drive A not correctly identified in Setup Keyboard Controller error The keyboard controller failed test You may ha...

Страница 107: ...place the battery and run Setup to reconfigure the system System cache error Cache disabled RAM cache failed the BIOS test BIOS disabled the cache System CMOS checksum bad run SETUP CMOS has been corrupted or modified incorrectly perhaps by an application program that changes data stored in CMOS Run Setup and reconfigure the system either using the Default Values and or making your own selections ...

Страница 108: ...9 Getting Service and Support Service and Support Contact Information Web Site Support Services E mail to Support Services ...

Страница 109: ...il address tech support nec computers com Note If you purchased your computer outside the U S or Canada please contact the local NEC office or their dealers for support and service If you have access to a telephone a modem and or a LAN Internet connection you can use these services to obtain information about your system at any time day or night seven days a week Not only do these services provide...

Страница 110: ...ical documentation including Frequently Asked Questions reference manuals and warranty information BIOS updates drivers and Setup Disk files to download contact information including telephone numbers for Technical Support and links to vendor Web sites an automated e mail form for your technical support questions a password accessible area for resellers To access the NEC Solutions Home Page enter ...

Страница 111: ...se have your system accessible while calling for technical support to ensure that NEC Solutions support personnel can successfully troubleshoot your system For outside the U S or Canada please contact your local NEC office or dealer for the support and service available in your country E mail to Support Services NEC Solutions Support Services offers technical support by e mail if you have Internet...

Страница 112: ...lthy Work Environment Making Your Computer Work for You Arrange Your Equipment Adjust Your Chair Adjust Your Input Devices Adjust Your Screen or Monitor Vary Your Workday Pre existing Conditions and Psychosocial Factors ...

Страница 113: ...l disorders it is still unclear whether working at a computer causes such disorders Some doctors believe that using the keyboard and mouse may aggravate existing musculoskeletal disorders Note Contact a doctor if you experience pain tenderness swelling burning cramping stiffness throbbing weakness soreness tingling and or numbness in the hands wrists arms shoulders neck back and or legs Some peopl...

Страница 114: ...ilt the backrest slightly backwards The angle formed by your thighs and back should be 90 or more Your seat depth should allow your lower back to comfortably contact the backrest Make sure that the backs of your lower legs do not press against the front of the chair Extend your lower legs slightly so that the angle between your thighs and lower legs is 90 or more Place your feet flat on the floor ...

Страница 115: ...Avoid resting your wrists on sharp edges Type with your wrists straight Instead of twisting your wrists sideways to press hard to reach keys move your whole arm Keep from bending your wrists hands or fingers sideways Press the keys gently do not bang them Keep your shoulders arms hands and fingers relaxed Adjust Your Screen or Monitor Correct placement and adjustment of the screen or external moni...

Страница 116: ...les and joints that were in one position for an extended period of time Relax muscles and joints that were active Use a timer or reminder software to remind you to take breaks To enhance blood circulation alter your sitting posture periodically and keep your hands and wrists warm Note For more information on workstation setup see the American National Standard for Human Factors Engineering of Visu...

Страница 117: ...ver one s work Contact a doctor if you experience pain tenderness swelling burning cramping stiffness throbbing weakness soreness tingling and or numbness in the hands wrists arms shoulders neck back and or legs This appendix was prepared in consultation with Dr David Rempel of the University of California San Francisco Ergonomics Program and Mr M F Schneider of HUMANTECH Inc Ann Arbor Michigan ...

Страница 118: ...B Specifications Base System Expansion Power Security Dimensions and Weight Recommended Environment ...

Страница 119: ... Optional Memory One SO DIMM slot on bottom of system supports optional 128 MB 256 MB or 512 MB PC133 memory module support for up to 768 MB of memory Video RAM 8 MB UMA Cache RAM 512 KB L2 cache Read Only Memory ROM 512 KB flash ROM Calendar Clock Year month day hour minute second maintained by internal back up battery Core Chip VIA Twister T chipset composed of VT8606 North Bridge and VT82C686B ...

Страница 120: ...luding 4 arrow keys arranged in inverted T layout Numeric keypad embedded Windows keyset Fn key function key for ROM based key functions Shortcut keys 2 keys Internet e mail Pointing Device VersaGlide NX pad with scroll button Hard Disk Drive Internal 2 5 inch 9 5mm IDE UltraDMA 100 20 GB 30 GB or higher hard disk drive Note When referring to storage capacity GB stands for one billion bytes Some u...

Страница 121: ...gh density D sub Microphone In 1 port 3 pin Mini Pin jack Stereo Headphone Out 1 port 3 pin Mini Pin jack with SP DIF MDC Modem K56flex compatible V 34 extended rate protocol V 90 compliant Enhanced AT command set Class 1 and 2 Fax protocols Built in speaker with software controllable volume Integrated on main board LAN 10Base T and 100Base TX Resume on LAN support Full duplex support Software sup...

Страница 122: ...otal user accessible capacity may vary depending on operating environments Card Slots One 32 bit card slot for Type I or II PC Card One CF card slot for Type I or Type II CF Card Power ACPI power management support power status and battery charge status LEDs Primary Battery Lithium ion Li Ion 4 cell Housed in battery compartment on bottom of system Optional Secondary Battery Lithium ion Li Ion 8 c...

Страница 123: ...n 270 mm max Depth 8 66 in 220 mm max Height 0 77 in to 0 93 in 19 5 mm to 23 7 mm Weight minimum 2 98 lbs 1 35kg Recommended Environment Operation Temperature 41ºF to 95ºF 5ºC to 35ºC Relative Humidity 20 to 80 Noncondensing Storage Temperature 4ºF to 104ºF 20ºC to 40ºC Relative Humidity 20 to 80 Noncondensing ...

Страница 124: ...C Frequently Asked Questions External Mouse Display PC Cards Diskette Drive Booting Power Management Battery Charging Miscellaneous ...

Страница 125: ...the external monitor You can obtain higher resolutions if you connect a higher resolution external monitor and switch to CRT only mode How can I change my video drivers Right click My Computer in the Start menu in Windows XP on the desktop in Windows 2000 select Properties select the Hardware tab Click the Device Manager button From Device Manager double click Display adapters Right click S3graphi...

Страница 126: ...and your drive Remove the diskette before powering off How do I format a diskette Select My Computer in the Start menu in Windows XP on the desktop in Windows 2000 and then right click click the right hand mouse button on the diskette drive icon Select Format and choose the format process that best suits your needs What type of diskette do I use in my diskette drive The Versa E120 DayLite supports...

Страница 127: ...boot and a cold boot A warm boot restarts the system while system power is on A warm boot is also a software reset A warm boot clears volatile system memory and reloads the operating system A cold boot is a system start with power off A cold boot also resets the hardware It checks the hardware and reloads the operating system Power Management Does my system come with power management features enab...

Страница 128: ...vides the greatest power savings by putting the system into a maximum power shutdown When the system goes into Hibernation mode it saves data and system status and then shuts off power to all components Hibernation mode lets you save power without first saving your work Resuming from Hibernation mode requires less time than performing a cold boot Your system must be configured for Hibernation In W...

Страница 129: ...ng the system on AC power while using external devices such as a printer or a USB drive or when connected to a network Battery Charging Is it normal for the area near the VersaGlide touchpad to get warm while recharging a battery The battery generates heat during recharging and discharging You do not need to worry about overheating A protection circuit inside the notebook prevents overheating Why ...

Страница 130: ...esidual discharge effect See Exit Menu in Chapter 3 for information about this feature Once refreshed your battery is conditioned to recharge to its full capacity with the AC adapter connected to AC power Miscellaneous How do I set the time and date You can change the time and date in Windows double clicking the time in the lower right corner of the screen Change the date and time as needed How do...

Страница 131: ...ws application If you need help in a Windows application click on a Help button or Help menu item Most applications provide online help If the application doesn t provide these try pressing F1 How do I save a file You save a file by selecting File then Save from the drop down menu If the file was not previously named you are prompted for a file name In Windows XP and Windows 2000 you can use up to...

Страница 132: ... 533 MBps and 1 07 GBps animation The art of making things appear to move in two dimensional 2D or three dimensional 3D space and making events happen over time applications programs Software designed to perform specific functions like solving business or mathematical problems audio The range of acoustic mechanical or electrical frequencies that humans hear B base RAM Area of system memory between...

Страница 133: ...ormance and can operate at speeds up to 32 MHz CD Compact disc A polished metal platter capable of storing digital information The most prevalent types of compact discs or those used by the music industry to store digital recordings and CDs used to store computer data Both types are read only which means that once the data is recorded onto them they can only be read or played CD audio Also called ...

Страница 134: ...creen image using tiny dots called pixels See also LCD cursor A movable image on the display screen that indicates where the next entered data appears D default A value option or setting that the computer automatically selects until you direct it otherwise digital audio Recorded sounds such as speech and sound effects These are played back by the audio circuit s Digital to Analog Converter DAC dig...

Страница 135: ...ction key The set of keys on the keyboard usually F1 through F12 that let you get help and error message information or quickly select frequently used commands H hard disk A rigid magnetic storage device that provides fast access to stored data hardware The electrical and mechanical parts from which a computer is made hertz Hz A unit of frequency equal to one cycle per second hot key Combination o...

Страница 136: ...EC Versa notebook is Infrared Data Association IrDA compatible interface A connection that enables two devices to communicate interrupt A special control signal from an I O device that diverts the attention of the microprocessor from the program to a special address K kilobyte KB 1024 bytes L LAN Local Area Network LCD Liquid Crystal Display An LCD consists of a thin sandwich of two glass plates w...

Страница 137: ...usical Instrument Digital Interface A standard serial bus digital interface designed to connect electronic musical devices MIDI has no innate sound of its own MIR Medium Infrared an infrared technology that sends data at 1 152 Mbit second 1 152 000 bits per second mode A method of operation for example the NEC Versa notebook operates in either normal or power saving modes modem MOdulator DEModulat...

Страница 138: ...eived via modem to a paging device from a computer with paging communications software or telephone parallel interface Interface that communicates multiple data bits at a time parallel printer A printer with a parallel interface parameter A characteristic of a device or system partition Process of dividing mass storage hard disk drive into isolated or separate sections Partitioning a hard drive cr...

Страница 139: ...o attach the device to the computer processor In a computer a functional unit that interprets and executes instructions prompt A special symbol indicating the beginning of an input line Also a message that appears on the screen indicating that the user must take a certain action Q QWERTY The QWERTY keyboard designed in the 1800s for mechanical typewriters refers to the first six keys QWERTY on the...

Страница 140: ...n interface that communicates information one bit at a time serial printer A printer with a serial interface SIR Serial Infrared an infrared technology that sends data at 2 4 Mbit second 2 400 000 bits per second SO DIMM Small Outline Dual Inline Memory Module A small circuit board that holds memory chips A dual in line memory module DIMM has a 64 bit path software Programs that run on a computer ...

Страница 141: ...and a graphics resolution of 1400 x 1050 pixels system board The main printed circuit board inside the system unit into which other boards and major chip components such as the system microprocessor are connected s video Short for super video a technology for transmitting video signals over a cable by dividing the video information into two separate signals one for color and the other for brightne...

Страница 142: ...mory W warm boot Process of resetting the computer without turning off the power through keyboard input pressing Ctrl Alt and Del keys simultaneously The system returns to an initial or arbitrarily selected condition warm swap Process of swapping devices in and out of a computer system without turning off the power The system must be in a sleep state before removing or inserting a device waveform ...

Страница 143: ...io connecting options 5 21 specifications B 3 B Battery alarms 4 5 bay 1 12 charging 2 13 C 6 charging LED 1 8 2 13 CMOS 3 2 conserving power 2 9 4 2 C 2 C 6 extending life 2 9 4 2 C 2 handling 2 10 inserting 2 12 life 1 3 lock release buttons 1 16 2 11 low battery status 2 9 maintaining a charge C 6 power 1 8 2 3 precautions 2 13 primary 1 12 1 16 2 3 2 7 recharging precautions 2 14 refresh 2 9 3...

Страница 144: ...ot 1 13 5 17 B 5 types 1 13 Charging the battery 2 13 Cleaning LCD screen 2 16 system case 2 15 2 16 Closing LCD panel 4 6 CMOS battery 3 2 Cold boot C 4 Conserving battery power 2 9 4 2 C 2 C 6 Control keys 1 10 Cooling the AC adapter 2 5 Cooling the system 1 13 1 14 Core chip B 2 Critical battery alarm 4 5 Cursor control keys 1 11 D Date and time 3 2 3 6 DC power 4 2 DC power port 1 12 Default B...

Страница 145: ...ation 1 10 video mode 1 10 zoom 1 10 G Getting through customs 7 3 H Hard disk drive moving 3 11 password protection 3 10 power management 4 3 4 4 specifications B 3 status LEDs 1 5 1 9 turning off 4 4 HDD password 3 9 3 10 Headphone connecting 5 21 jack 1 11 Hibernate mode 1 8 4 4 4 6 C 5 I IEEE 1394 B 4 devices 1 14 5 21 port 1 14 standard 1 14 Input output facilities B 4 Intel SpeedStep technol...

Страница 146: ... Lithium ion battery See Battery Locating CF Card slot 1 13 DC power port 1 12 fax modem port 1 13 headphone jack 1 11 LAN port 1 13 LCD panel latch 1 11 LEDs 1 4 microphone in jack 1 11 PC Card slot 1 13 Power button 1 4 shortcut buttons 1 4 speaker jack 1 11 stereo speakers 1 15 VersaGlide touchpad 1 4 volume control 1 11 Low battery alarm 4 5 power 2 9 M Main BIOS Setup menu 3 3 Managing system...

Страница 147: ...Optional battery 2 7 P Panel brightness 1 10 Partition Only restore 4 14 Partitioning the hard disk 4 12 4 14 Password establishing 3 9 hard disk drive 3 9 3 10 on boot 3 9 protection 3 9 Standby 4 6 PC Card inserting 5 15 power consumption C 2 releasing 1 14 removing 5 16 slot 1 14 5 15 B 5 support 5 15 5 17 type 1 14 5 15 5 17 Performing BIOS update 3 14 Ports DC power 1 12 fax modem 1 13 headph...

Страница 148: ...so Battery bay 1 15 charging 1 8 2 13 features 2 7 installing 5 18 removing 5 20 specifications B 5 using 2 3 2 14 Security BIOS Setup menu 3 8 Kensington security lock 1 13 specifications B 6 Sending and receiving e mail 6 4 Setting Up a Healthy Work Environment A 2 Shortcut buttons 1 4 1 5 features 1 7 location 1 6 modifying 4 9 6 4 Show icon on taskbar 4 6 Silent boot 3 8 Simultaneous video mod...

Страница 149: ...rive 5 7 connecting 5 10 emergency release latch 5 10 features 5 9 5 10 media 5 10 software 5 10 using 5 10 USB CD ROM drive connecting 5 5 features 5 4 using 5 5 USB devices connecting 1 12 1 14 5 2 support 1 12 5 2 USB diskette drive booting C 3 connecting 5 3 features 5 3 using 5 3 C 3 USB operation support 3 8 USB ports 1 12 1 14 5 2 C 2 User password 3 9 Using AC adapter 2 4 primary battery 2...

Страница 150: ...b site for NEC Solutions America Inc 9 3 Weight specifications B 6 Windows 2000 operating system 4 2 introduction 4 2 keys 1 10 power management 4 2 XP operating system 4 2 Windows keys 1 10 Windows power management states 4 7 X XGA LCD panel C 2 ...

Страница 151: ...e is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the...

Страница 152: ...er uniquement avec une batterie du même type ou d un type recommandé par le constructeur Mettre au rébut les batteries usagées conformément aux instructions du fabricant Battery Disposal The main battery may be made of Lithium Ion Li Ion and the CMOS clock battery is made of Lithium Do not place used batteries in your regular trash The batteries must be collected recycled or disposed of in an envi...

Страница 153: ... CA 95828 declare that the product NEC Versa E120 DayLite is in conformity with part 15 of the FCC Rules Operation of this product is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation ...

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