General Purpose LCD MonitorsTrouble Shooting Guide en 23

9

Trouble Shooting Guide

 

 

 

Problem

 

Solution

 

 

No image is displayed on screen

– 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.

 

 

“Check Input Signal” message is

– The signal cable should be completely connected to the video card/

displayed in PC mode

computer.

 

 

– The video card should be completely seated in its slot and the computer

 

 

switched ON.

 

 

Display image is not centered, is

Push the down key to activate the Autoset function.

too small, or too large in the PC

 

mode

 

 

 

 

Vertical or horizontal noise is

Adjust the Clock and Phase in the OSD submenu.

present in the picture in PC mode

 

 

 

 

Incorrect colors

 

– 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.

 

 

The error message “Unsupport

PC is operating with either a resolution or timing mode that is not supported.

Mode” is displayed

 

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)

 

 

 

Bosch Security Systems, Inc.

User’s Manual

F.01U.127.338 2.0 2009.05

Page 27
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Bosch Appliances UML-151-90, UML-191-90, UML-171-90 user manual Trouble Shooting Guide, Problem Solution