NEC MultiSync 20WGX2 Series Service Manual page 53

Composite Sync Type
This figure shows only positive sync waveform. Monitor should support negative sync waveform too.
Hsync Type 1P
Vsync Type 1P
Composite Sync (Type1P)
Composite Sync (Type2P)
Composite Sync (Type20P)
Composite Sync (Type21P)
Composite Sync (Type22P)
Composite Sync (Type 3P)
2.1.3 Digital Input
Signal Format : TMDS
Frequency
Range
Sync Pulse
Back Porch
Video Swing
Setup
Sync
Sync On Green Wave Form
Dot clock
H-sync
V-sync
H-sync
V-sync
H-sync
V-sync
White Level
Black Level
Blank Level
Sync Level
Spec
Minimum Typical
25.2MHz --
31.5kHz --
49Hz --
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5-5
Maximum
165MHz
81.2kHz
76Hz
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