Full HD LCD Monitors

Troubleshooting en 49

 

 

8Troubleshooting

Problem

Solution

No image 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.

 

 

 

The message "Going to

The signal cable should be completely connected to

Sleep" is displayed

 

the video card/computer.

 

The video card should be completely seated in its

 

 

slot and the computer switched ON.

 

 

Display image is not

Push the down key to activate the Auto Adjust function.

centered, is too small, or too

- or -

 

large in the PC mode

Adjust the Frequency and Phase in the PC OSD submenu.

 

 

Vertical or horizontal noise is

Push the down key to activate the Auto Adjust function.

present in the picture

- or -

 

 

Adjust the Frequency and Phase in the PC OSD submenu.

 

 

Incorrect colors

Select 5500°K, 6500°K, or 7500°K in the Color Tone

 

menu.

 

- or -

 

 

Use the Reset function to reset to the default settings.

 

 

The error message “Out of

PC is operating with either a resolution or timing mode

Range” is displayed

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

 

 

 

Bosch Security Systems, Inc.

User’s Manual

F.01U.172.600 1.0 2010.10

Page 49
Image 49
Bosch Appliances UML-262-90, UML-422-90 user manual Troubleshooting, Problem Solution