3-5
ASUS LCD Monitor PB278 Series
• 4:3 is only available when input source is in 4:3 format。OverScan is only
available for the HDMI input source
• Phase adjusts the phase of the pixel clock signal. With a wrong phase
adjustment, the screen shows horizontal disturbances.
• Clock (pixel frequency) controls the number of pixels scanned by one
horizontal sweep. If the frequency is not correct, the screen shows vertical
stripes and the image is not proportional.
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