Troubleshooting - Bosch UML-223-90 User Manual

34 en | Troubleshooting
8

Troubleshooting

Problem
No image displayed on
screen
Display image is not
centered, is too small or
too large in the PC mode
Vertical or horizontal
noise is present in the
picture
F.01U.272.027 | 1.0 | 2012.08
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.
Push the down arrow key to activate the Auto
Adjust function.
- or -
Adjust the Frequency and Phase in the PC OSD
submenu.
Push the down arrow key to activate the Auto
Adjust function.
- or -
Adjust the Frequency and Phase in the PC OSD
submenu.
User's Manual
Bosch HD LCD Monitors
Bosch Security Systems, Inc.