User's Manual
27
TROUBLESHOOTING
Note:WhenthereisaprobleminVGAmode(onlywhenVGAmodeisapplied).
PROBLEM POSSIBLE SOLUTIONS
The signal is out of range 
• Adjust resolution, horizontal or vertical 
frequency.
• Check whether the signal cable is connected or 
loose.
• Check the input source. 
Vertical bar or strip on the 
background, horizontal noise 
and incorrect position 
• Setthe autocongureoradjustclock, phase,or
H/V position. 
Screen color is unstable or is a 
single color 
• Check the signal cable.
• Reinstall the PC video card. 
Maintenance
Early malfunction can be prevented. Careful and regular cleaning can extend 
the amount of time you will have with your new TV. Be sure to turn the power off 
and unplug the power cord before you begin any cleaning.
Do not use your TV in areas that are too hot or too cold, because the cabinet 
may warp or the screen may malfunction. Your TV works best in temperatures 
that are comfortable to you.
Storagetemperaturesare32°to122°F(0°to50°C).
Workingtemperaturesare32°to95°F(0°to35°C).
Do not place your TV in direct sunlight or near a heat source.
Clean the screen
A great tip to dust off your screen: wet a soft cloth in a mixture of lukewarm 
water and a little fabric softener or dish washing detergent. Wring the cloth until 
it’s almost dry, and then use to wipe the screen.
Make sure the excess water is off the screen, then let air-dry before you turn on 
the TV. 
Cleaning the cabinet
To remove dirt or dust, wipe the cabinet with a soft, dry, line-free cloth. Please 
be sure not to use a wet cloth.










