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Battery pack

The computer uses a battery pack that gives you long use between 
charges.

Battery pack characteristics

The battery pack has the following characteristics:

Employs current battery technology standards.

Delivers a battery-low warning.

The battery is recharged whenever you connect the computer to the 
AC adapter. Your computer supports charge-in-use, enabling you to 
recharge the battery while you continue to operate the computer. 
However, recharging with the computer turned off results in a 
significantly faster charge time.

The battery will come in handy when you travel or during a power 
failure. It is advisable to have an extra fully charged battery pack 
available as backup. Contact your dealer for details on ordering a spare 
battery pack.

Maximizing the battery's life

Like all other batteries, your computer's battery will degrade over 
time. This means that the battery's performance will diminish with 
time and use. To maximize your battery's life, you are advised to 
adhere to the recommendations set out below.

Conditioning a new battery pack

Before you use a battery pack for the first time, there is a 
"conditioning" process that you should follow:
1

Insert the new battery without turning the computer on.

2

Connect the AC adapter and fully charge the battery.

3

Disconnect the AC adapter.

4

Turn on the computer and operate using battery power.

5

Fully deplete the battery until the battery-low warning appears.

6

Reconnect the AC adapter and fully charge the battery again.

Summary of Contents for 5935G-744G50Mi

Page 1: ...Aspire Series Generic User Guide ...

Page 2: ... space provided below The serial number and model number are recorded on the label affixed to your computer All correspondence concerning your unit should include the serial number model number and purchase information No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronically mechanically by photocopy recording or otherwise...

Page 3: ...ng all power cords from the power supplies CAUTION for Accessibility Be sure that the power outlet you plug the power cord into is easily accessible and located as close to the equipment operator as possible When you need to disconnect power to the equipment be sure to unplug the power cord from the electrical outlet CAUTION for bundled dummy cards only for certain models Your computer shipped wit...

Page 4: ...d ventilation openings and AC adapter may get hot To avoid injury ensure they do not come in contact with your skin or body Your device and its enhancements may contain small parts Keep them out of the reach of small children Using electrical power This product should be operated from the type of power indicated on the marking label If you are not sure of the type of power available consult your d...

Page 5: ...ice provider Product servicing Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage points or other risks Refer all servicing to qualified service personnel Unplug this product from the wall outlet and refer servicing to qualified service personnel when the power cord or plug is damaged cut or frayed liquid was spilled into the product t...

Page 6: ...o not short circuit the battery Accidental short circuiting can occur when a metallic object such as a coin clip or pen causes direct connection of the positive and negative terminals of the battery These look like metal strips on the battery This might happen for example when you carry a spare battery in your pocket or purse Short circuiting the terminals may damage the battery or the connecting ...

Page 7: ... NICHT DEM STRAHLL AUSSETZEN PRODUCTO LÁSER DE LA CLASE I ADVERTENCIA RADIACIÓN LÁSER INVISIBLE AL SER ABIERTO EVITE EXPONERSE A LOS RAYOS ADVARSEL LASERSTRÅLING VEDÅBNING SE IKKE IND I STRÅLEN VARO LAVATTAESSA OLET ALTTINA LASERSÅTEILYLLE VARNING LASERSTRÅLNING NÅR DENNA DEL ÅR ÖPPNAD ÅLÅ TUIJOTA SÅTEESEENSTIRRA EJ IN I STRÅLEN VARNING LASERSTRÅLNING NAR DENNA DEL ÅR ÖPPNADSTIRRA EJ IN I STRÅLEN ...

Page 8: ...ear with the hearing aid Do not place credit cards or other magnetic storage media near the device because information stored on them may be erased Medical devices Operation of any radio transmitting equipment including wireless phones may interfere with the functionality of inadequately protected medical devices Consult a physician or the manufacturer of the medical device to determine if they ar...

Page 9: ...our device before boarding an aircraft The use of wireless teledevices in an aircraft may be dangerous to the operation of the aircraft disrupt the wireless telephone network and may be illegal Potentially explosive environments Switch off your device when in any area with a potentially explosive atmosphere and obey all signs and instructions Potentially explosive atmospheres include areas where y...

Page 10: ...cing features or performance Acer is proud to offer our customers products with the ENERGY STAR mark What is ENERGY STAR Products that are ENERGY STAR qualified use less energy and prevent greenhouse gas emissions by meeting strict energy efficiency guidelines set by the U S Environmental Protection Agency Acer is committed to offer products and services worldwide that help customers save money co...

Page 11: ...your company s health and safety department The following section provides tips for more comfortable computer use Finding your comfort zone Find your comfort zone by adjusting the viewing angle of the monitor using a footrest or raising your sitting height to achieve maximum comfort Observe the following tips refrain from staying too long in one fixed posture avoid slouching forward and or leaning...

Page 12: ...g a task light changing the display s viewing angle using a glare reduction filter using a display visor such as a piece of cardboard extended from the display s top front edge Avoid adjusting your display to an awkward viewing angle Avoid looking at bright light sources such as open windows for extended periods of time Developing good work habits Develop the following work habits to make your com...

Page 13: ... your computer can help you to be more productive please refer to the AcerSystem User Guide This guide contains detailed information on such subjects as system utilities data recovery expansion options and troubleshooting In addition it contains warranty information and the general regulations and safety notices for your notebook It is available in Portable Document Format PDF and comes preloaded ...

Page 14: ...puter to magnetic fields Do not expose the computer to rain or moisture Do not spill water or any liquid on the computer Do not subject the computer to heavy shock or vibration Do not expose the computer to dust or dirt Never place objects on top of the computer Do not slam the computer display when you close it Never place the computer on uneven surfaces Taking care of your AC adapter Here are so...

Page 15: ...of used batteries according to local regulations Recycle if possible Cleaning and servicing When cleaning the computer follow these steps 1 Turn off the computer and remove the battery pack 2 Disconnect the AC adapter 3 Use a soft moist cloth Do not use liquid or aerosol cleaners If either of the following occurs the computer has been dropped or the body has been damaged the computer does not oper...

Page 16: ...xvi ...

Page 17: ...AC adapter xiv Taking care of your battery pack xv Cleaning and servicing xv Special keys and indicators 1 Enabling your wireless devices 2 Touchpad 3 Touchpad basics with two click buttons 3 Using the keyboard 4 Lock keys and embedded numeric keypad 4 Hotkeys 5 Windows keys 6 Audio 7 Acer PureZone only for certain models 7 Tuba only for certain models 7 Using Dolby Home Theater for surround multi...

Page 18: ...e battery pack 26 Charging the battery 27 Checking the battery level 27 Optimising battery life 27 Battery low warning 28 Taking your notebook PC with you 29 Disconnecting from the desktop 29 Moving around 29 Preparing the computer 29 What to bring to meetings 30 Taking the computer home 30 Preparing the computer 30 What to take with you 30 Special considerations 31 Setting up a home office 31 Tra...

Page 19: ...ptional DVB T digital TV antenna for selected models 41 To connect the digital antenna 41 Watching TV with an external antenna or cable socket 42 BIOS utility 43 Boot sequence 43 Enable disk to disk recovery 43 Password 43 Using software 44 Playing DVD movies 44 Frequently asked questions 45 Requesting service 48 International Travelers Warranty ITW 48 Before you call 48 Troubleshooting 49 Trouble...

Page 20: ......

Page 21: ...ammable only for certain models Power indicator Indicates the computer s power status Battery indicator Indicates the computer s battery status 1 Charging The light shows amber when the battery is charging 2 Fully charged The light shows blue when in AC mode Communication indicator Indicates the computer s wireless connectivity device status HDD indicator Indicates when the hard disk drive is acti...

Page 22: ... bring up the Launch Manager window panel A red toggle indicates the device is off Click the red toggle to turn the device on A green toggle indicates the device is on Click the green toggle to turn the device off Note Communication devices may vary by system configuration Remember to access the respective wireless devices configuration panel for additional options ...

Page 23: ... Note Illustrations for reference only The exact configuration of your PC depends on the model purchased Note When using the touchpad keep it and your fingers dry and clean The touchpad is sensitive to finger movement hence the lighter the touch the better the response Tapping harder will not increase the touchpad s responsiveness Note By default vertical and horizontal scrolling is enabled on you...

Page 24: ...d are in uppercase Num Lock Fn F11 When Num Lock is on the embedded keypad is in numeric mode The keys function as a calculator complete with the arithmetic operators and Use this mode when you need to do a lot of numeric data entry A better solution would be to connect an external keypad Scroll Lock Fn F12 When Scroll Lock is on the screen moves one line up or down when you press the up or down a...

Page 25: ...lay screen external monitor if connected and both Fn F6 Display off Turns the display screen backlight off to save power Press any key to return Fn F7 Touchpad toggle Turns the internal touchpad on and off Fn F8 Speaker toggle Turns the speakers on and off Fn F11 NumLk Turns the embedded numeric keypad on or off only for certain models Fn Brightness up Increases the screen brightness Fn Brightness...

Page 26: ...ork domain M Minimizes all windows R Open the Run dialog box T Cycle through programs on the taskbar U Open Ease of Access Center X Open Windows Mobility Center BREAK Display the System Properties dialog box SHIFT M Restore minimized windows to the desktop TAB Cycle through programs on the taskbar by using Windows Flip 3 D SPACEBAR Bring all gadgets to the front and select Windows Sidebar CTRL F S...

Page 27: ...he beam forming to get the multi sound source input Tuba only for certain models The dedicated Tuba CineBass subwoofer pumps out earthshaking movie house audio The innovative design integrates the subwoofer with the tube style hinge Using Dolby Home Theater for surround multi channel sound only for certain models Your Acer notebook comes with the Dolby Home Theater audio enhancement featuring Dolb...

Page 28: ...sults in sound that is more spacious open and dramatic improving listening comfort and making listeners feel as if the action is happening all around them Dolby Natural Bass A bass enhancement system which provides up to an octave of downward extension in the bass response of most speakers Dolby Sound Space Expander A sound stage enhancer which produces a wide stereo image and improves the separat...

Page 29: ...FingerLaunch Acer ProfileLaunch can launch up to three applications websites with a single finger swipe Acer Bio Protection Fingerprint Solution also allows you to navigate through web browsers and documents using Acer FingerNav With Acer Bio Protection Fingerprint Solution you can now enjoy an extra layer of protection for your personal computer as well as the convenience of accessing your daily ...

Page 30: ...ngs indicated below Double vertical Triple primary at left Triple primary at right or Quad Acer Gridvista is dual display compatible allowing two displays to be partitioned independently Acer GridVista is simple to set up 1 Run Acer GridVista and select your preferred screen configuration for each display from the taskbar 2 Drag and drop each window into the appropriate grid 3 Enjoy the convenienc...

Page 31: ...o proceed to the following screen Click the button and follow the onscreen instructions 1 Select the content you want to back up The less content you select the quicker the process will be but it will increase your risks of losing data 2 Select where you want the backup copies to be stored You will need to select an external drive or your D drive Acer Backup Manager cannot store a backup on the so...

Page 32: ...nagement scheme that supports the advanced configuration and power interface ACPI which allows for maximum power conservation and maximum performance at the same time Windows handles all power saving chores for your computer Acer PowerSmart key Note This feature is only available on certain models The Acer PowerSmart key uses the power saving features of your computer s graphics sub system to redu...

Page 33: ...d Applications Disc 2 Restore Completely Restore System to Factory Defaults Restore Operating System and Retain User Data Reinstall Drivers or Applications This chapter will guide you through each process Note This feature is only available on certain models For systems that do not have a built in optical disc burner plug in an external optical disc burner before entering Acer eRecovery Management...

Page 34: ...ctory default or drivers and applications you would like to burn to disc 4 Follow the instructions on screen to complete the process Note Create a factory default image when you want to burn a bootable disc that contains your computer s entire operating system as it was delivered to you from the factory If you wish to have a disc that will allow you to browse the contents and install selected driv...

Page 35: ...backups You can also reinstall applications and drivers for your Acer system 1 Click on Start All Programs Acer Acer eRecovery Management 2 Switch to the Restore page by clicking Restore 3 You can choose to restore the system from a factory default image or reinstall applications and drivers 4 Follow the instructions on screen to complete the process ...

Page 36: ...ain submenu 4 Use the up and down arrow keys to select F12 Boot Menu 5 Use the F5 or F6 key to change F12 Boot Menu to Enabled 6 Press the ESC key to enter the Exit submenu press the ENTER key to Exit Saving Changes Press the ENTER key again to select Yes The system will reboot 7 After rebooting when the Acer logo shows press the F12 key to open the Boot Menu Here you can select which device to bo...

Page 37: ...he IDE1 device 5 Use the F6 key to move the IDE1 device to the highest boot priority or use the F5 key to move other devices to a lower boot priority Ensure that the IDE1 device is the highest priority 6 Press the ESC key to enter the Exit submenu press the ENTER key to Exit Saving Changes Press the ENTER key again to select Yes The system will reboot 7 When you reboot Windows will be installed fr...

Page 38: ...e media content Advanced change settings update your Arcade software view the help file and About information Albums view photos stored on your hard disk or removable media Music listen to music files in a variety of formats Online Media browse online content from YouTube and Flickr Note While watching videos optical discs or slideshows your screensaver and power saving features are unavailable No...

Page 39: ...p down Note When playing movies from optical discs there are additional controls added to the right of the volume controls These are discussed in more detail in the Cinema of this guide Cinema Play Movie Click Play Movie to watch a movie from your optical disc drive Depending in the type of optical drive installed in your computer you can play movies from Blu Ray discs standard DVDs and video CDs ...

Page 40: ...vie from the beginning or eject the disk Videos Click Videos to watch a video clip stored on your hard drive Note The Video feature is designed to play back many different kinds of video formats Refer to the Video help section for a full list of compatible formats If you want to watch a DVD or VCD use Cinema Playing a video file Click Videos to open a file browser to navigate to the video clip you...

Page 41: ...n contains the settings in Acer Arcade Deluxe that allow you to fine tune its performance to suit your machine and your personal preferences Live Update Click Live Update to connect to the Internet to check for and download available updates to the software Settings Click Settings to make various adjustments to your Acer Arcade Deluxe Here you will be able to modify Display Audio Photo DVD and BD ...

Page 42: ... recommended that you do not select Virtual Surround Sound in order to avoid damaging your speakers Audio Channel Expander should be used for better 4 or 6 speaker output Dynamic Range Compression can compensate for different listening environments for enhanced audio enjoyment Photo Use this page to set preferences for your slideshow when viewing photos DVD Acer Arcade Deluxe has several features ...

Page 43: ... zoom in and out and to pan in four directions Editing Pictures Choose Menu Fix and you can Rotate Remove Red Eye and Auto Fix optimize the brightness and contrast pictures to improve the appearance of your images Slideshow settings To change slideshow settings refer to the Arcade section above Music For convenient access to your music collection click Music to open the Music homepage Select the f...

Page 44: ... clips will be displayed as thumbnails select a thumbnail to view the video clip s title and number of views Press Enter or double click a thumbnail to view the video Alternatively you can log into your YouTube account to view your favorite video clips You need to be logged in to save a video clip to your favorites Flickr Select Flickr to view 200 recently uploaded photos on Flickr You can log int...

Page 45: ...tra fully charged battery pack available as backup Contact your dealer for details on ordering a spare battery pack Maximizing the battery s life Like all other batteries your computer s battery will degrade over time This means that the battery s performance will diminish with time and use To maximize your battery s life you are advised to adhere to the recommendations set out below Conditioning ...

Page 46: ...n of the battery is adversely affected by the following usage patterns Using the computer on constant AC power with the battery inserted If you want to use constant AC power you are advised to remove the battery pack after it is fully charged Not discharging and recharging the battery to its extremes as described above Frequent use the more you use the battery the faster it will reach the end of i...

Page 47: ...ly charged battery Checking the battery level The Windows power meter indicates the current battery level Rest the cursor over the battery power icon on the taskbar to see the battery s present charge level Optimising battery life Optimizing battery life helps you get the most out of battery operation prolonging the charge recharge cycle and improving recharging efficiency You are advised to follo...

Page 48: ... outlet are available 1 Plug the AC adapter into the computer and then connect to the mains power supply 2 Save all necessary files 3 Resume work Turn off the computer if you want to recharge the battery rapidly An extra fully charged battery pack is available 1 Save all necessary files 2 Close all applications 3 Shut down the operating system to turn off the computer 4 Replace the battery pack 5 ...

Page 49: ...to secure the computer Moving around When you are just moving within short distances for example from your office desk to a meeting room Preparing the computer Before moving the computer close and latch the display cover to place it in Sleep mode You can now safely take the computer anywhere you go within the building To bring the computer out of Sleep mode open the display then press and release ...

Page 50: ...he battery by putting the computer in Sleep mode Press Fn F4 or close the display cover whenever you are not actively using the computer To resume open the display if closed then press and release the power button Taking the computer home When you are moving from your office to your home or vice versa Preparing the computer After disconnecting the computer from your desktop follow these steps to p...

Page 51: ...ure between outside and room temperature Setting up a home office If you frequently work on your computer at home you may want to purchase a second AC adapter for use at home With a second AC adapter you can avoid carrying the extra weight to and from home If you use your computer at home for significant periods of time you might also want to add an external keyboard monitor or mouse Traveling wit...

Page 52: ... cords that are appropriate for the country to which you are traveling Spare fully charged battery packs Additional printer driver files if you plan to use another printer Proof of purchase in case you need to show it to customs officials International Travelers Warranty passport Special considerations Follow the same special considerations as when traveling with the computer In addition these tip...

Page 53: ...mputer from unauthorized access Setting these passwords creates several different levels of protection for your computer and data Supervisor Password prevents unauthorized entry into the BIOS utility Once set you must enter this password to gain access to the BIOS utility See BIOS utility on page 43 User Password secures your computer against unauthorized use Combine the use of this password with ...

Page 54: ...ss Enter When the User Password is set and the password on boot parameter is enabled a prompt appears at boot up Type the User Password and press Enter to use the computer If you enter the password incorrectly a warning message appears Try again and press Enter Important You have three chances to enter a password If you fail to enter the password correctly after three tries the system halts Press ...

Page 55: ... computer read the following section Fax data modem only for certain models Your computer has a built in V 92 56 Kbps fax data modem only for certain models Warning This modem port is not compatible with digital phone lines Plugging this modem into a digital phone line will damage the modem To use the fax data modem port connect a phone cable from the modem port to a telephone jack Warning Please ...

Page 56: ... To use the network feature connect an Ethernet cable from the Ethernet RJ 45 port on the chassis of the computer to a network jack or hub on your network Consumer Infrared CIR only for certain models The computer s Consumer Infrared CIR port is used to receive signals from your remote control or other devices with CIR capability ...

Page 57: ...u to connect USB peripherals without taking up precious system resources IEEE 1394 port only for certain models The computer s IEEE 1394 port allows you to connect to an IEEE 1394 compatible device like a video camera or digital camera See your video or digital camera s documentation for details ...

Page 58: ...e implementation allows tidy setup and fast connection ExpressCard only for certain models The ExpressCard is the newest version of the PC Card It is a smaller and faster interface that further enhances the usability and expandability of your computer ExpressCards support a vast number of expansion options including flash memory card adapters TV tuners Bluetooth connectivity and IEEE 1394B adapter...

Page 59: ...e icon on the taskbar and stop the card operation 3 Push the card gently into the slot and release to pop out the card Then pull the card free from the slot Installing memory Follow these steps to install memory 1 Turn off the computer unplug the AC adapter if connected and remove the battery pack Then turn the computer over to access its base 2 Remove the screws from the memory cover then lift up...

Page 60: ...t clicks into place 4 Replace the memory cover and secure it with the screw 5 Reinstall the battery pack and reconnect the AC adapter 6 Turn on the computer The computer automatically detects and reconfigures the total memory size Please consult a qualified technician or contact your local Acer dealer ...

Page 61: ...tenna for selected models or a PAL SECAM or NTSC connector Please refer to the appropriate section Watching TV using the optional DVB T digital TV antenna for selected models DVB T digital TV is an international standard that is used to transmit terrestrial television services in digital format It is gradually replacing analog broadcasts in many countries The DVB T digital antenna can be used with...

Page 62: ... TV cables connected to an external antenna or cable socket to watch TV on your computer Connecting antenna cables To connect your cables 1 Plug the antenna connector into the RF jack of your computer 2 Connect the other end to your TV cable using the cable converter if necessary Important Please ensure you use the correct cable system for your region before attempting to connect the antenna cable...

Page 63: ...t sequence in the BIOS utility activate the BIOS utility then select Boot from the categories listed at the top of the screen Enable disk to disk recovery To enable disk to disk recovery hard disk recovery activate the BIOS utility then select Main from the categories listed at the top of the screen Find D2D Recovery at the bottom of the screen and use the F5 and F6 keys to set this value to Enabl...

Page 64: ... maximum of five times including the first time after which the last region code set will remain permanent Recovering your hard disk does not reset the number of times the region code has been set Refer to the table below for DVD movie region code information 2 The DVD movie will automatically play after a few seconds Note To change the region code insert a DVD movie of a different region into the...

Page 65: ...system Nothing appears on the screen The computer s power management system automatically blanks the screen to save power Press any key to turn the display back on If pressing a key does not turn the display back on three things might be the cause The brightness level might be too low Press Fn increase to adjust the brightness level The display device might be set to an external monitor Press the ...

Page 66: ...p into the hole and push to eject the tray The keyboard does not respond Try attaching an external keyboard to a USB port on the computer If it works contact your dealer or an authorized service center as the internal keyboard cable may be loose The printer does not work Check the following Make sure that the printer is connected to a power outlet and that it is turned on Make sure that the printe...

Page 67: ...and all data will be erased It is important to back up all data files before using this option Before performing a restore operation please check the BIOS settings 1 Check to see if Acer disk to disk recovery is enabled or not 2 Make sure the D2D Recovery setting in Main is Enabled 3 Exit the BIOS utility and save changes The system will reboot Note To activate the BIOS utility press F2 during POS...

Page 68: ...ill get in contact with our offices worldwide Please consult http global acer com Before you call Please have the following information available when you call Acer for online service and please be at your computer when you call With your support we can reduce the amount of time a call takes and help solve your problems efficiently If there are error messages or beeps reported by your computer wri...

Page 69: ...roblems after going through the corrective measures please contact your dealer or an authorized service center for assistance Some problems may be solved using the BIOS utility Error messages Corrective action CMOS battery bad Contact your dealer or an authorized service center CMOS checksum error Contact your dealer or an authorized service center Disk boot failure Insert a system bootable disk i...

Page 70: ...re of the following measures Reorient or relocate the receiving antenna Increase the separation between the device and receiver Connect the device into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio television technician for help Notice Shielded cables All connections to other computing devices must be made using shielded ca...

Page 71: ...r service temporarily If possible they will notify you in advance But if advance notice is not practical you will be notified as soon as possible You will also be informed of your right to file a complaint with the FCC Your telephone company may make changes in its facilities equipment operations or procedures that could affect the proper functioning of your equipment If they do you will be notifi...

Page 72: ...tem of Telepermitted equipment of a different make or model nor does it imply that any product is compatible with all of Telecom s network services 2 This equipment is not capable under all operating conditions of correct operation at the higher speeds for which it is designed Telecom will accept no responsibility should difficulties arise in such circumstances 3 Some parameters required for compl...

Page 73: ...mergency use LCD pixel statement The LCD unit is produced with high precision manufacturing techniques Nevertheless some pixels may occasionally misfire or appear as black or red dots This has no effect on the recorded image and does not constitute a malfunction Radio device regulatory notice Note Below regulatory information is for models with wireless LAN and or Bluetooth only General To prevent...

Page 74: ...d output power of the wireless LAN Mini PCI Card and Bluetooth card is far below the FCC radio frequency exposure limits Nevertheless the notebook PC series shall be used in such a manner that the potential for human contact during normal operation is minimized as follows 1 Users are requested to follow the RF safety instructions on wireless option devices that are included in the user s manual of...

Page 75: ...eil numérique de la classe B est conforme à la norme NMB 003 No 4 et CNR 210 No 4 Dec 2000 et No 5 Nov 2001 To prevent radio interference to the licensed service this device is intended to be operated indoors and away from windows to provide maximum shielding Equipment or its transmit antenna that is installed outdoors is subject to licensing Pour empêcher que cet appareil cause du brouillage au s...

Page 76: ...ss IV Screen tilt angle 85 0 Design screen illuminance Illuminance level 250 250cosα lx where α 85 Color Source D65 Reflection class of LCD panel positive and negative polarity Ordinary LCD Class I Protective LCD Class III Image polarity Both Reference white Pre setting of luminance and color temperature 6500K tested under BM7 Yn u n v n Pixel fault class Class II ...

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