Troubleshooting - LG StudioWorks 77i User Manual

Troubleshooting

Symptom: Self diagnostics message.
Possible causes:
The signal cable is not connected.
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Symptom: OUT OF FREQUENCY message appears.
Possible causes:
O U T O F F R E Q U E N C Y
H F : 1 2 0 . 8 K H Z
V F : 1 1 0 . 1 H Z
O P E R A T I N G F R E Q U E N C Y
H F : 3 0 - 7 0 K H Z
V F : 5 0 - 1 6 0 H Z
P O WE R MA N A G EM E N T 20 S EC .
Use the graphics board's utility software to change the frequency setting
(Refer to the manual for graphics board).
Symptom: The power LED is illuminated amber.
Possible causes:
Display power management mode.
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These is no sync signal.
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The signal cable is not fastened securely.
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Check the computer power and graphics adapter configuration.
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Symptom: The image on the SCREEN is not centered, or too small,
or not a rectangle shape.
Possible Causes: Image adjustment not been done yet in the
current operating mode. Use the SELECT and
the image to your liking.
Symptom:The monitor doesn't enter the power saving off mode
(Amber).
Possible Causes:Computer video signal is not VESA DPMS
standard. Either the PC or the video controller card is not using the
VESA DPMS power management function.
The frequency of the sync input is outside the
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operating range of the monitor.
*Horizontal Frequency: 30KHz-70KHz
*Vertical Frequency: 50Hz-160Hz
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