Trouble Shooting Guide - Bosch UML-151 User Manual

General Purpose LCD Monitors
9

Trouble Shooting Guide

Problem
No image is displayed on screen
"Check Input Signal" message is
displayed in PC mode
Display image is not centered, is
too small, or too large in the PC
mode
Vertical or horizontal noise is
present in the picture in PC mode
Incorrect colors
The error message "Unsupport
Mode" 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 Autoset function.
Adjust the Clock and Phase in the OSD submenu.
– 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 9300K or 6500K.
- or -
– 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.
Change the PC timing mode to one of the valid combinations below:
Timing mode
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 (17 and 19 inch only)
User's Manual
Trouble Shooting Guide | en
F.01U.127.338 | 2.0 | 2009.05
23