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Notes 

 

Please put the product in a flat, stable and dry place. Avoid direct sunlight, high temperature, 

humidity, dust, and corrosive gas. 

 

If the product  is  installed on  the  wall,  please make  sure  the  wall’s  load bearing  capacity  is 

sufficient. To avoid falling and injuring people, install according to the included instructions 
with mounting hardware.   

 

The LCD may experience image distortion or color decay when the temperature variation is 
too large. Wait for a moment (with power on) and the distortion should disappear. 

 

Do not block the ventilation opening. Install the product according to this handbook. 

 

Do not install the product near any heat source such as a radiator, heat register or stove. 

 

Do not use uncertified connecting lines, which might cause 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 
connecting line might cause damage to it. 

 

Cut  off  power  and  the  connecting  line  immediately  and  contact  the  after-sales  service 

center  if  the  product  or  the  connecting  line  is  damaged  for  some  reason.  Continued  use 
without maintenance might cause smoking or off-odor. 

 

Do  not  hang  or  lean  on  the  product.  Doing  so  can  cause  the  product  to  fall  or  become 

damaged. It may also cause injury to people. Pay special attention when children are nearby. 

 

Please turn off power for safety if not using the product for a long time. 

 

Do not let the connecting line get squeezed, buckled, pulled or twisted. 

 

Make sure the power is turned off and the connecting lines are removed when moving the 

product. 

 

Avoid collisions with the product. This may cause equipment failure. 

 

 
 

 
 

 

 
 

 

 
 

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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