Troubleshooting - LG Flatron 775FT User Manual

Technical Information

Troubleshooting

Check the following before calling for service.
SELF DIAGNOSTICS message.
The signal cable is not connected, or is loose. Check and secure the
connection.
OUT OF FREQUENCY message appears.
The frequency of the signal from the video card is outside the operating
range of the monitor.
*Horizontal Frequency : 30-70kHz
*Vertical Frequency : 50-160Hz
Use the graphics board's utility software to change the frequency
setting (Refer to the manual for graphics board).
The power LED is illuminated amber.
Display power management mode.
There is no active signal coming from the PC.
The signal cable is not fastened securely.
Check the computer power and graphics adapter configuration.
The image on the SCREEN is not centered, or too small,
or not a rectangle shape.
Image adjustment not been done yet in the current operating mode.
Use the OSD, SET and
The monitor doesn't enter the power saving off mode
(Amber).
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.
An abnormal picture is displayed on the screen. For
example, the upper part of the picture may be missing or
dark.
If using certain non-VESA Standard video card, an abnormal picture may
be displayed. Try setting it to one of the factory preset modes, or selecting
to a resolution and refresh rate within the specification limits of the
monitor.
NOTE
If the power indicator(LED) light is blinking amber, may result in abnomal
condition of the monitor.
Then press a power ON/OFF button on the front panel control and call your
A15
service technician for more information.
buttons to set the image to your liking.