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External Connections 

Please  connect  the  monitor  to  external  devices  according  to  the  following  I/O  interface  list. 

Choose the corresponding incoming signal channel. 
 

 

 

VGA INPUT: D-SUB 15 pins Connector 
HDMI INPUT: HDMI Connector 
BNC IN: BNC Connector 

BNC OUT: BNC Connector 
AUDIO IN: Phone Jack, Stereo 
USB IN

Support USB update 

DP INPUT: 

Display Port

 

 
 

 

Attention 

 

Please turn off the power of the external device and the product when connecting. 

 

Main Menu 

Main Menu 

To activate, press the menu button on the bottom left of the bezel. The sub-menus of the main 
menu  are:  PC  Menu,  Picture  menu,  Audio  menu,  OSD  menu,  Function  menu  and  Geometry 

menu. 

Press  the  menu  button  to  select  the  sub-menu  item.  The  selected  menu  item  will  show  a 
bordered  wireframe.  Press  the 

▲▼

 button  to  move  among  the  secondary  menu  items  of  the 

sub-menu. 

 
 

Summary of Contents for LED284K

Page 1: ...LED284K 28 4K Widescreen LED Security Monitor Metal Housing Rev 101717 3625 Cincinnati Avenue Rocklin CA 95765 855 388 7422 www northernvideo com USER MANUAL LED284K...

Page 2: ...2 Notes 3 Introduction to the Product 3 Product Appearance 4 Performance Features 4 External Connections 5 Main Menu 6 Main Menu 6 Picture Menu 7 Sound Menu 7 Option Menu 8 Screen Menu 8 Channel Sele...

Page 3: ...s can easily result in a dangerous explosion Please turn off power or unplug the power cable immediately if there is smoking off odor or abnormal noise Contact the after sales service center for maint...

Page 4: ...use equipment failure Do not press stretch or heat the connecting lines which might cause damage to it Please firmly grasp the plug of the connecting line when inserting and removing Pulling the conne...

Page 5: ...rmance Features Supports 3D comb filter and 3D de interlace Low energy consumption long service life High contrast ratio and high luminance Automatically eliminates ghosting Rapid response times no tr...

Page 6: ...Support USB update DP INPUT Display Port Attention Please turn off the power of the external device and the product when connecting Main Menu Main Menu To activate press the menu button on the bottom...

Page 7: ...to change the selected function in OSD menu item D Rightward button Press the button to move the cursor to the needed function Press the button to change the selected function in OSD menu item E Left...

Page 8: ...olume calibration surround sound EQ and sound mode Press button to adjust value when item is selected press menu button to exit Option Menu Option menu can adjust OSD language set restore the unit to...

Page 9: ...een Menu Screen menu can adjust the H position V position clock phase and auto adjust the position of the image within the unit Press button to adjust value when item is selected press menu button to...

Page 10: ...the clean soft towel Wipe dry after cleaning it 3 Rubbing or scrapping the housing with fingernails or other hard objects might scratch the housing Troubleshooting Before consulting service staff ple...

Page 11: ...by other electric appliance may be present 5 Adjust fine tuning setting 6 Adjust luminance setting 7 Adjust contrast ratio setting 8 Adjust color setting 9 Check whether the system is set up properly...

Page 12: ...11 Dimensions...

Page 13: ...t o Selectable 16 9 or 4 3 in OSD Pixel Pitch 0 16 mm x 0 16 mm Color Depth 1 073G Brightness 250 cd m2 Contrast o 1000 1 Viewing Angle H V 178 178 Response Time 5 5ms Auto Adjustment Yes CE FCC UL La...

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