Images Are Unclear - NEC MultiSync LCD2080UX -BKA Service Manual

3.2 Images are Unclear

Are pictures still unclear even though H.SIZE
and FINE are adjusted?
OK
NG
Is the display used in the ENLARGE mode?
OK
NG
Isn't SHARPNESS fall?
OK
NG
Replace the connection cable that is extended
toward the PC.
OK
NG
Check waveforms around ICA01 Pins 5, 13
and 20.
* For the automatic adjustment of H/V POSITION, H.SIZE, and FINE, it is necessary to use
images in the outermost periphery of the video activity area. During adjustments, use
images of full screen display by WINDOWS.
Normal
Adjust SMOOTHING to the TEXT mode.
Service reset in the service mode is
performed.
Normal
6-7