55
ENG
ENGLISH
TROUBLESHOOTING
TROUBLESHOOTING
No image is displayed
Problem
Resolution
Is the product power cord
connected?
y
See if the power cord is properly connected to the outlet.
Is the power indicator light on?
y
See if the power switch is turned on.
y
May need service.
Power is on, power indicator
is red but the screen appears
extremely dark.
y
Adjust brightness and contrast again.
y
Backlight may need repair.
Does the 'Out of range'
message appear?
y
The signal from the PC (video card) is out of the vertical or horizontal
frequency range of the product. Adjust the frequency range by
referring to the Specifications in this manual.
Does the 'Check signal cable'
message appear?
y
The signal cable between PC and product is not connected. Check
the signal cable.
y
Press the INPUT menu in the remote Control to check the input signal.
'Unknown Product' message appears when the product is connected.
Problem
Resolution
Did you install the driver?
y
See if the plug&play function is supported by referring to the video
card user manual.
'Key Lock On' message appears.
Problem
Resolution
The Key Lock On message
appears when pressing the
SETTINGS button.
y
The Lock function prevents the OSD settings from being changed
inadvertently. To release the lock, go to Menu and Option and disable
the Key Lock option.