The TM-600 Series monitor uses firm's SmartVue Video processor to maintain user-preset brightness and contrast levels on the display during dynamic scene changes and when switching between video sources. An internal test pattern gray scale generator lets the operator set brightness and contrast through dc command voltages. Video input can be at 875 or 1023 lines using the RS-343 or at 525 lines using RS-170. The unit automatically switches between 525 and 875 lines based on the input signal.