1
LED Amber or Green?
Make sure of the state of the
computer (turn on). Press the
keyboard or operate the mouse.
Is picture display
It is need to check
and repair the monitor
Make sure the correct signal is input.
Is the ATTENTION
Check contrast level is not
button, increase value to 100)
1. Check video cable for bent
pins, reseat it.
2. Change resolution (It may
cause by PC.)
3. LCD monitor can not
display Vertical Frequency
setting at 76 Hz & 85 Hz
Is picture displayed
normally?
frequency and then set the computer.
It is need to check and
repair the monitor
Is picture displayed
normally?
END
END
1. Try system with
another monitor.
2. Try monitor with
another system.
It is need to check and
repair the monitor.
Amber
For example:
ATTENTION
CHECK SIGNAL CABLE
ATTENTION
NO SIGNAL INPUT
Green
Continued
No
Yes
No
Yes
No
unsuccessful
General Trouble Shooting Guide
220CW8 LCD
55