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27 

Troubleshoot 

Problem & Question 

Possible Solutions 

Power LED Is Not ON 

Make sure the power button is ON and the Power Cord is properly connected 

to a grounded power outlet and to the monitor.   

No images on the screen 

  Is the power cord connected properly? 

Check the power cord connection and power supply. 

  Is the cable connected correctly? 

(Connected using the HDMI cable) 

Check the HDMI cable connection.    

(Connected using the DP cable) 

Check the DP cable connection.  

*HDMI/ DP input is not available on every model. 

  If the power is on, reboot the computer to see the initial screen (the login 

screen), which can be seen. 

If the initial screen (the login screen) appears, boot the computer in the 

applicable mode (the safe mode for Windows 7/8/8.1/10) and then 

change the frequency of the video card. 

(Refer to the Setting the Optimal Resolution) 

If the initial screen (the login screen) does not appear, contact the 

Service Center or your dealer. 

  Can you see "Input Not Supported" on the screen? 

You can see this message when the signal from the video card exceeds 

the maximum resolution and frequency that the monitor can handle 

properly. 

Adjust the maximum resolution and frequency that the monitor can 

handle properly. 

  Make sure the AOC Monitor Drivers are installed. 

Picture Is Fuzzy & Has 

Ghosting Shadowing Problem   

Adjust the Contrast and Brightness Controls.   

Press to auto adjust.   

Make sure you are not using an extension cable or switch box. We 

recommend plugging the monitor directly to the video card output connector 

on the back.   

Picture Bounces, Flickers Or 

Wave Pattern Appears In The 

Picture 

Move electrical devices that may cause electrical interference as far away 

from the monitor as possible.   

Use the maximum refresh rate your monitor is capable of at the resolution 

you are using.   

Содержание U2790PQU

Страница 1: ...1 LCD Monitor User Manual U2790PQU LED backlight www aoc com 2018 AOC All Rights Reserved...

Страница 2: ...necting the Monitor 11 Wall Mounting 12 Adjusting 13 Hotkeys 13 OSD Setting 15 Luminance 16 Image Setup 17 Color Setup 18 Picture Boost 19 OSD Setup 20 Extra 21 Exit 22 LED Indicator 23 Driver 24 i Me...

Страница 3: ...used as follows NOTE A NOTE indicates important information that helps you make better use of your computer system CAUTION A CAUTION indicates either potential damage to hardware or loss of data and...

Страница 4: ...ectrician install the correct outlet or use an adapter to ground the appliance safely Do not defeat the safety purpose of the grounded plug Unplug the unit during a lightning storm or when it will not...

Страница 5: ...recommended by the manufacturer A product and cart combination should be moved with care Never push any object into the slot on the monitor cabinet It could damage circuit parts causing a fire or elec...

Страница 6: ...t the stain instead of strong detergent which will cauterize the product cabinet When cleaning make sure no detergent is leaked into the product The cleaning cloth should not be too rough as it will s...

Страница 7: ...are not blocked by a table or curtain Do not engage the LCD monitor in severe vibration or high impact conditions during operation Do not knock or drop the monitor during operation or transportation...

Страница 8: ...ables DP HDMI USB cables CD manual will be provided for all countries and regions Please check with the local dealer or AOC branch office for confirmation CD Manual Warranty Card Stand Base Power Cabl...

Страница 9: ...9 Setup Base Please setup or remove the base following the steps as below Please place the monitor on a soft and flat surface to prevent the scratch Setup Remove...

Страница 10: ...to look at the full face of the monitor and then adjust the monitor s angle to your own preference Hold the stand so you will not topple the monitor when you change the monitor s angle NOTE Do not ad...

Страница 11: ...the back of the monitor 2 Optional Requires a video card with HDMI port Connect one end of the HDMI cable to the back of the monitor and connect the other end to the computer s HDMI port 3 Optional R...

Страница 12: ...ble the wall mounting arm 3 Place the wall mounting arm onto the back of the monitor Line up the holes of the arm with the holes in the back of the monitor 4 Insert the 4 screws into the holes and tig...

Страница 13: ...uto configure Only for the models with D Sub Volume When there is no OSD press to active volume adjustment bar press or to adjust volume Only for the models with Audio ECO When there is no OSD press d...

Страница 14: ...for 5 seconds to activate the Clear Vision Demo and a message of Clear Vision Demo on will be display on the screen for a duration of 5 seconds Press Menu or Exit button the message will disappear Pre...

Страница 15: ...nction Press AUTO to exit If you want to adjust any other function repeat steps 2 3 4 OSD lock function When the OSD menu is closed press and hold the Down key for about 10 seconds to lock or unlock t...

Страница 16: ...ster Brightness 0 100 Backlight Adjustment Eco mode Standard Standard Mode Text Text Mode Internet Internet Mode Game Game Mode Movie Movie Mode Sports Sports Mode Uniformity Uniformity Mode Gamma Gam...

Страница 17: ...to adjust 5 Press to exit Clock 0 100 Adjust picture Clock to reduce Vertical Line noise Phase 0 100 Adjust Picture Phase to reduce Horizontal Line noise Sharpness 0 100 Adjust picture sharpness H Pos...

Страница 18: ...r Color Temperature from EEPROM DCB Mode Full Enhance ON OFF Disable or Enable Full Enhance Mode Nature Skin ON OFF Disable or Enable Nature Skin Mode Green Field ON OFF Disable or Enable Green Field...

Страница 19: ...Disable Bright Frame Frame Size 14 100 Adjust the Size of the Frame Brightness 0 100 Brightness Adjustment for Enhance Area Contrast 0 100 Contrast Adjustment for Enhance Area H position 0 100 Adjust...

Страница 20: ...0 Adjust the OSD timeout DP Capability 1 1 1 2 If the DP video content supports DP1 2 please select DP1 2 for DP Capability otherwise please select DP1 1 H Position 0 100 Adjust the horizontal positio...

Страница 21: ...adjust the picture to default Off Timer 0 24 hrs Select DC off time Image Ratio Wide Select wide format for display 4 3 4 3 1 1 Native resolution Movie 1 over scan Top 9 Down 9 Movie 2 over scan Top 9...

Страница 22: ...22 Exit 1 Press MENU Menu to display menu 2 Press or to select Exit and press to enter 3 Press to exit...

Страница 23: ...23 LED Indicator Status LED Color Full Power Mode White Power Saving Orange...

Страница 24: ...lcome to i Menu software by AOC i Menu makes it easy to adjust your monitor display setting by using on screen menus instead of the OSD button on the monitor To complete installation please follow the...

Страница 25: ...l wizard to complete software installation Under each of the four PC statuses you may choose the desired time in minutes from the pull down menu for your monitor to automatically shutdown The example...

Страница 26: ...ool it splits the desktop into different panels and each panel displays a different window You only need to drag the window to a corresponding panel when you want to access it It supports multiple mon...

Страница 27: ...efer to the Setting the Optimal Resolution If the initial screen the login screen does not appear contact the Service Center or your dealer Can you see Input Not Supported on the screen You can see th...

Страница 28: ...The LED should either turn ON or OFF after hitting the CAPS LOCK key Missing one of the primary colors RED GREEN or BLUE Inspect the monitor s video cable and make sure that no pin is damaged Make su...

Страница 29: ...um 335 664mm Optimal preset resolution 3840x2160 30Hz HDMI2 3840x2160 60Hz HDMI1 DP Plug Play VESA DDC2B CI Input Connector DP HDMIx2 USBx2 Earphone Power Source 100 240V 50 60Hz Power Consumption Typ...

Страница 30: ...75 029 SXGA 1280x1024 60Hz 63 981 60 020 1280x1024 75Hz 79 976 75 025 WXGA 1440x900 60Hz 55 935 59 887 1440x900 60Hz 55 469 59 901 WSXGA 1680x1050 60Hz 65 290 59 954 1680x1050 60Hz 64 674 59 883 FHD...

Страница 31: ...CL 6 TMDS Data 1 16 SDA 7 TMDS Data 0 17 DDC CEC Ground 8 TMDS Data 0 Shield 18 5V Power 9 TMDS Data 0 19 Hot Plug Detect 10 TMDS Clock 20 Pin Color Display Signal Cable Pin No Signal Name Pin No Sign...

Страница 32: ...SA DDC STANDARD It allows the monitor to inform the host system of its identity and depending on the level of DDC used communicate additional information about its display capabilities The DDC2B is a...

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