HP VA-1809 - Manual (Page 33)

HSYNC
Data Enable
HP
HF HD HB HS
Fig. Vertical sync signal
Data Enable
VT
VF VD VB VS
HSYNC
VSYNC
Fig. Vertical sync signal (in non-interlace mode)
Data Enable
VT
VF VD VB VS
HSYNC
VSYNC
Fig. Vertical sync signal (in interlace mode)
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