Troubleshooting Guide - Bosch Uml-202 Instruction Manual

UML -202-90
9

TroubleShooting Guide

Problem
No image is displayed on
screen
"Going to Sleep" mes-
sage is displayed
Display image is not cen-
tered, 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
1. Check that the power cord of the monitor is securely con-
nected into the wall outlet or grounded extension cable or
strip.
2. Power switch should be in the ON position and the LED lit.
3. Check that the Brightness and/or Contrast adjustments of the
display have not been turned down to minimum levels.
1. The signal cable should be completely connected to the video
card/computer.
2. The video card should be completely seated in its slot and the
computer switched ON.
Push the down key to activate the Autoset function.
-or-
Adjust the Clock and Phase in the OSD submenu.
Push the down key to activate the Autoset function (for VGA inputs
only).
-or-
Adjust the Clock and Phase in the OSD submenu.
1. Press the Menu button on the front panel of the monitor, then
press the right arrow to select the Color menu. Press the
down arrow on the front panel and select Cool, Warm, or Nor-
mal.
- or -
2. Press the Menu button on the front panel of the monitor, then
press the right arrow to select the Utility menu. Press the
down arrow on the front panel and select Recall to reset to
the default settings.
PC is operating with either a resolution or timing mode that is not
supported by the UML-202-90. Change the PC timing mode to one
of the valid combinations below:
640 x 480; 60/72/75 Hz
800 x 600; 60/72/75 Hz
1024 x 768; 60/70/75 Hz
1280 x 1024; 60/75 Hz
1600 x 1200; 60 Hz
Instruction Manual
TroubleShooting Guide | en
F01U076723 | 1.0 | 2007.09
27