Virtual Boy Optimal Timing Capture Settings
These settings should work with both RGB cables and YPbPr cables such as the ones HD Retrovision makes. The only setting that will not change for every person is the hsize. Take the settings as a base to get started.
Vision Configuration
Window
Size Width: 384 Height: 250
Check: Exclude borders
Capture Format: 8-8-8
Scaling: Slow (high quality)
Input
Resolution and Refresh: Width: 384 Height: 250 (same values as your Size in Window tab)
Color Domain: AUTO(RGB (709))
Video Adjustements
Horizontal Position: 102
Horizontal Size: 508
Phase: 23
Vertical Positon: 12
Black Level: 8
After configuring these settings, close the vision window and re-open, then re-enter the settings on the window page.
VCS Configuration
Ste's Explanation 