Ativa AT22OH - Manual (Page 12)

English
9
Care and Maintenance
Care
Avoid exposing your monitor directly to sunlight or other heat source. Place your 
monitor away from the sun to reduce glare.
Put your monitor in a well ventilated area. 
Do not place any heavy  items on top of your monitor.
Make certain your monitor is installed in a clean and moisture-free area. 
Keep your monitor away from magnets, motors, transformers, speakers, and TV 
sets.
Safety Tips
If smoke, abnormal noise, or odor appears to arise from your monitor, remove 
the power cord immediately and call your service center.
Never remove the rear cover of your monitor cabinet. The display unit inside 
contains high-voltage parts and may cause electric shock to human bodies.
Never try to repair your monitor yourself. Always call your service center or a 
qualified technician to fix it.
Troubleshooting
No power (Power indicator is not lit and there is no image)
Make sure A/C power cord is securely connected to the power adapter and the 
power supply is firmly connected to the monitor.
Plug another electrical device into the power outlet to verify that the outlet is 
supplying proper voltage.
Make sure all signal cables are installed. 
Power indicator is green but there is no screen image
Make sure the video cable supplied with the monitor is tightly secured to the 
video output port on back of the computer. If not, tightly secure it.
Adjust brightness. 
Wrong or abnormal colors
If any colors (red, green, blue) are missing, check the video cable to make sure 
it is securely connected. Loose or broken pins in the cable connector could
cause an improper connection.
Connect the monitor to another computer. 
“No signal” message appears on the screen
 Make sure the computer is turned on and that the monitor cable is properly
connected and/or has no bent pins.