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Multimedia LCD P
r
o
j
ecto
r
-50
-
Symptom Possible cause
Remedy
The power is
not turned on
*The main power switch is not
turned on.
*The power cord is disconnected.
*Turn on the main power switch.
*Plug the power cord into an AC
power outlet
No video
*The input is not correctly
connected.
*No signal input
*No open lens cover
*Select the appropriate input
source
*Connect correctly
*Remove the lens cover
No audio
*The projector is not correctly
connected.
*The volume is set to minimum.
*Mute is turned on
*Check audio cable connect
correctly.
*Adjust the volume.
*Press the MUTE button
No remote
function
*No battery
*Remote signal be obstructed
*Check battery of remote
controller
*Remove obstacle between
projector and remote controller
Colors are
pale
*Color density and color
matching are not correctly
adjusted.
*Color lose
*Adjust the RGB setting.
*Check VGA cable.
Abnormal
brightness &
contrast
*Brightness and contrast are not
correctly adjusted.
*The lamp is nearing the end of
its service life
*Adjust the brightness and
contrast setting.
*Replace with a new lamp
Video is
blurred
*Focus or RGB phase is out of
adjustment.
*Adjust the focus and phase.