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Full HD LCD Monitors
8
Troubleshooting
Problem
No image displayed on screen
The message "Going to
Sleep" is displayed
Display image is not
centered, is too small, or too
large in the PC mode
Vertical or horizontal noise is
present in the picture
Incorrect colors
The error message "Out of
Range" is displayed
Bosch Security Systems, Inc.
Solution
–
Check that the power cord of the monitor is
securely connected into the wall outlet or grounded
extension cable or strip.
–
Power switch should be in the ON position and the
LED lit.
–
Check that the Brightness and/or Contrast
adjustments of the display have not been turned
down to minimum levels.
–
The signal cable should be completely connected to
the video card/computer.
–
The video card should be completely seated in its
slot and the computer switched ON.
Push the down key to activate the Auto Adjust function.
- or -
Adjust the Frequency and Phase in the PC OSD submenu.
Push the down key to activate the Auto Adjust function.
- or -
Adjust the Frequency and Phase in the PC OSD submenu.
Select 5500°K, 6500°K, or 7500°K in the Color Tone
menu.
- or -
Use the Reset function to reset to the default settings.
PC is operating with either a resolution or timing mode
that is not supported by the monitor. Change the PC
timing mode to one of the valid combinations below:
–
640 x 480; 60/72/75 Hz
–
720 x 400; 70 Hz
–
800 x 600; 60/75 Hz
–
1024 x 768; 60/75 Hz
–
1280 x 768; 60 Hz
–
1280 x 960; 60 Hz
–
1280 x 1024; 60/75 Hz
–
1366 x 768; 60 Hz
User's Manual
Troubleshooting | en
F.01U.172.600 | 1.0 | 2010.10
49
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