Bosch UML-151-90 User Manual - Page 27

General Purpose LCD Monitors Trouble 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 - displayed in PC mode - 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. Display image is not centered, is too small, or too large in the PC mode Push the down key to activate the Autoset function. 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 Mode" is displayed 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) Bosch Security Systems, Inc. User's Manual F.01U.127.338 | 2.0 | 2009.05