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7. Troubleshooting
No image appears on the monitor screen.
• Check to see if the AC power cord is tightly plugged in.
• Check to see if the unit's power switch is turned on.
• Check the input signal.
• Check to see if the input is selected as specified.
• Check to see if the signal is listed in the applicable signals chart.
Images on the monitor screen are improper.
• Check to see if the input is fed into the selected input terminal.
• Check to see if the video signal cable is tightly connected.
• Check to see if the signal is listed in the applicable signals chart.
• Check to see if the signal is fed to the input side, not to the output side.
Images are too dark.
• Check to see if the video signal level is as specified.
• Check to see if the brightness control is at minimum.
• Check to see if the contrast control is at minimum.
• Check to see if the backlight level on the User Setting Screen is too low.
• Check to see if the R. Gain, G. gain or B. Gain level on the Color Setting Screen is too low
with RGB or components inputs.
Hightlighted images are not accentuated.
• Check to see if the input signal is connected to the IN side, not to the OUT side.
• Check to see if the contrast control is at maximum with high-level input signals.
• Check to see if the S-Video input is handled in the through-out configuration and if two or
more units are connected with the main power off. The S-Video input is terminated off
when the main power is turned off. Turn on the main power of all the monitors.
Images are too weak.
• Check to see if the chroma near the proper value of 64.
• Check to see if the brightness level is too high.
• Check to see if the gamma level is appropriately at 2.2.
• Check to see if the R. Gain, G. Gain or B. Gain level on the Color Setting Screen is too low
with RGB or component inputs.
Colors are not as specified.
With Video or S-Video signal inputs
• Check to see if the brightness and contrast levels are as specified.
• Check to see if the chroma and hue levels on the Image Setting Screen are as specified.
• Check to see if the color temperature is selected and preset as specified.
• Check to see if the R. Gain, G. Gain or B. Gain level on the Color Setting Screen is as
specified.
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