Tektronix Camcorder 1780-R Bedienungsanleitung Seite 105

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Operating Instructions
1780R-Series Operators Manual
3–53
Left CRT display
Figure 3–24: Configure Menu Screen, page 1
Table 3–6: Configure Menu Selections, page 1
SYNC Direct or Auto Frequency Controlled wfm sync.
COUPLING AC / DC coupling or ground reference, sets all four inputs. (The probe
input is always AC coupled.) When GND is selected, the words
“INPUTS GROUNDED” are displayed on the CRT.
FIELD TRIG For two-field sweep only, selects whether field one or field two will be
displayed on the left of the CRT.
FIXED CAL
AMPL
Selects one of three fixed calibration amplitudes:
700 mV, 714 mV, or 1000 mV.
DC REST Wfm DC restorer clamps: slow, fast, or off.
CLAMP Waveform is clamped to sync tip or back porch time.
PAL
+V
PAL: +V and –V lines overlaid; appears as though only +V were
displayed (similar to NTSC display).
+V: The –V lines are demodulated 180° away from the +V lines.
SYSTEM
B/G I
Instrument operates in PAL systems B / G or I. ICPM measurements are
most affected (0 carrier reference level varies between systems).
Operating Instructions
1780R-Series Operators Manual
3–53
Left CRT display
Figure 3–24: Configure Menu Screen, page 1
Table 3–6: Configure Menu Selections, page 1
SYNC Direct or Auto Frequency Controlled wfm sync.
COUPLING AC / DC coupling or ground reference, sets all four inputs. (The probe
input is always AC coupled.) When GND is selected, the words
“INPUTS GROUNDED” are displayed on the CRT.
FIELD TRIG For two-field sweep only, selects whether field one or field two will be
displayed on the left of the CRT.
FIXED CAL
AMPL
Selects one of three fixed calibration amplitudes:
700 mV, 714 mV, or 1000 mV.
DC REST Wfm DC restorer clamps: slow, fast, or off.
CLAMP Waveform is clamped to sync tip or back porch time.
PAL
+V
PAL: +V and –V lines overlaid; appears as though only +V were
displayed (similar to NTSC display).
+V: The –V lines are demodulated 180° away from the +V lines.
SYSTEM
B/G I
Instrument operates in PAL systems B / G or I. ICPM measurements are
most affected (0 carrier reference level varies between systems).
Seitenansicht 104
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