17 Jul
2012
17 Jul
'12
6:40 p.m.
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From: Tony Duell <ard at p850ug1.demon.co.uk>
Sync-on-green means that the green video signal actually looks like a
composite video signal, the sync pulses are 'blacker than black' (they
ahve a voltage level below the black level). if the monitor is poorly
designed, then the circuit may well take the bottom of the sync signal as
the black level (being the lowest voltge on that input), so when the
input is at the real black level the montiro displays a dim green. -
?C: the essence of what Chuckers said. Makes sense now, sort of. Like I said though, I
have in the past added sync signals to the green line w/a haphazardly selected resistor.
Never had a problem. But these were Sony monitors, monsters in their day, so I'll
assume they were designed well enough that something like that wouldn't be a problem.
Still have a couple of those monitors (16" actual diagonal). One 48khz, one 64khz.
They say HP, but Sony made them.