Video; Sync - Philips PM 5508 Operating Manual

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VIDEO:
Circuits requiring an encoded colour video signal or a black/white video
signal (e.g. monitors, decoders, video tape-recorders, etc.) should be
connected to socket "VIDEO" by means of a coaxial 7552 cable. A positive
video signal with an output impedance of 75 S2 can be taken from this socket.
If loaded with 75 5?, the output amplitude is 1 Vp-p.
SYNC.:
If an oscilloscope is to be triggered externally for some measurements,
connect the sockets "SYNC." to the external trigger input of the oscil-
loscope.
Set switch "SYNC." to position "LINE" in case this triggering is to take
place in the line sync.-pulse-rhythm and to position "FRAME" in case of
triggering with field-sync. pulses. The polarity of the trigger pulses is
positive.