Fluke PM5414V - Handbuch (Seite 29)

PM 5414 V OPERATING INSTRUCTIONS
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3.5.9 Video Signal
The video signal (CVBS) generated by the instrument is available at the BNC socket VIDEO OUT. The
signal is also available at the Scart connector AUDIOA/IDEO OUT, pin 19. The ampiitude of the video
signai is 1 Vpp into 75 £2 with the VIDEO AMPL control in stop position ‘1 V’; it can aiso be set from
Oto 1.5 V, PP-
The chrominance signal within the CVBS signal and the subcarrier sync signal (color burst) is fixed
to 100 % and can be turned off by pressing the CHROMA OFF pushbutton.
3.5.10 Synchronization, Triggering
Fortriggeringofthetimebaseofan osciiloscope, respectively a waveform monitorthe pattern gener­
ator feeds a composite sync signal to the LINE/FIELD SYNC OUT connector. The amplitude (open
circuit) of the line sync pulses is 2.6 Vpp, while it is 5 Vpp for the frame puises. By means of the trigger
signal a convenient synchronization of the V- and H-signals is possible.
3.5.11 Y/C& RGB Unit
Modern video instruments can directly be controlled via Y/C respectively RGB signals. Using higher
bandwidths in the transmission path results in improved picture quaiity. Using the Y/C signai
(iuminance and color signal are transmitted separately) avoids color cross talk and improves the
color reproduction. The Y/C signal is avaiiabie at a 4-pole S-connector (Hosiden); the RGB signal,
composite sync and color subcarrier are available at 5 BNC sockets.
Output level at the Y/C and RGB sockets (into 75 Q):
R-G-B-signals (Vpp): 0.7 V
Y/C-signals (Vpp): 1.0 V
Subcarrier (Vpp) : 1.0 V
Composite sync: 2.0 V (negative going, related to 0 V)
Depending on the TV system selected, the subcarrier frequencies and video levels are switched over
(see specifications).
If the DEM or VCR patterns are turned on, the luminance part is represented oniy.
Composite Sync in Green
An additional sync in the RGB signai GREEN for control of monitors can be switched on by jumper
X002 on the Y/C & RGB unit. On delivery from the factory the jumper is in the OFF position.