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
normally?
END
Power off the monitor
and then restart PC
It is need to check
and repair the monitor
Is picture display
normally?
END
Make sure the correct signal is input.
Is the ATTENTION
picture displayed?
Check contrast level is not
minimized. (Press contrast
button, increase value to 100)
Is picture displayed
normally?
END
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
settingat76Hz&85Hz
Is picture displayed
normally?
1. Make sure the correct signal is input.
2. Press the keyboard or operate the mouse.
3. Make sure of the range of the input
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
YES
For example:
ATTENTION
CHECK SIGNAL CABLE
ATTENTION
NO SIGNAL INPUT
Green
Continued
No
No Yes Yes
YesNo
Yes
No
Yes Yes No
Yes
No
unsuccessful
OK
General Trouble Shooting Guide
190TW8 TV
59
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