40
Timings
•
H Total
Press
to adjust the horizontal total.
Use this function to adjust the clock frequency of pixel sampling (horizontal pixel frequency
of the analog input source generated by the ADC). If you notice flickering or verticle lines
in the image, it means that the pixel sampling frequency is insufficient. You can use this
function to adjust the frequency to achieve consistent image quality.
The following image is an example of test image from an external signal source:
Adjust image quality by
changing the value of horizontal
total to smoothen the image.
*In order to adjust timings the pattern should be used is pixel (on/off)*
•
H Start
Use
to adjust the projected image’s horizontal position.
If the projected image is not at the center of the screen (i.e. shifted to right or left) and
ends up being cropped, use this function to adjust the image’s horizontal position.The
following image is an example of test image from an external signal source:
Native picture
Skewed left
Skewed right
•
H Phase
Use
to adjust the projected image’s phase.
Use this function to adjust the phase of pixel sampling clock (relative to input signal).
Should the image still flicker or show noise (i.e. edges on texts) after optimization, adjust
phase accordingly.
•
V Start
Use
to adjust the projected image’s vertical position.
If the projected image is not at the center of the screen (i.e. shifted up or down) and ends
up being cropped, use this function to adjust the image’s vertical position.The following
image is an example of test image from an external signal source:
原始圖面
圖面下偏
圖面上偏
Native picture
Skewed down
Skewed Up
It is recommended that when adjusting the image, the horizontal total should be adjusted before the horizontal phase.
However, if the image still flickers even after you have adjusted both, try lowering the image noise.
