6.4.1. Horizontal and Vertical Sync

Try these first

1. 1.

   What does HSYNC signal control?

   Hint

   Think about what happens row by row on the screen.

2. 2.

   Explain the purpose of the VSYNC signal.

   Hint

   Consider how often the screen gets refreshed.

3. 3.

   What does the horizontal sync (HSYNC) control?

   • Frame refresh
   • Row start
   • Color depth

   Hint

   It directly relates to how rows of pixels are rendered.

4. 4.

   Is the purpose of vertical sync (VSYNC) primarily to control the color depth?

   • True
   • False

   Hint

   Think about what frame refresh means for the display.

5. 5.

   Given a display with a 75Hz refresh rate, calculate the duration of each frame in seconds, and discuss how improper sync might affect the display.

   Hint

   Consider how refresh rates impact visual clarity.

6. 6.

   How would you approach diagnosing a video display that only shows distorted images? Assume sync signals may be involved.

   Hint

   Device settings could heavily influence image rendering.