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Vertikal-Signal:
Video-Ausgang:
Video-Ausgang:
2.7 HF-Teil
BNC-Buchse Riickwand
Ausgangsspannung U,, = 4V + 0,5V
an 75Q
Ausgangswiderstand R; = 75Q + 5%
Periodendauer: 20 ms
impulsbreite: 640 us
BNC-Buchse Riickwand
Ausgangsspannung: Ug, = 1V an 75Q
Ausgangswiderstand: R; = 75Q + 3%
BNC-Buchse Frontplatte
Variabler Videoausgang
Ausgangsspannung max: U,, ~ 2V an
75Q
Ausgangswiderstand: R; = 75Q + 3%
Polaritat der Video-
spannung umschaltbar
mittels Kurzhubschal-
ter am Potentiometer
Schalter gedriickt: Polaritat positiv
Schalter gezogen:
Polaritat negativ
2.7.1 Bildtrager-Generator
Frequenz-
bereich:
Stabilitat der
Frequenz:
Temperaturgang
der Frequenz:
Video-
modulation:
Tontrager-
modulation:
Tontrager/
Bildtrager-
abstand:
<37 MHz > 86 MHz
nach 15 min. Einlaufzeit
typ.
3x 104/10 min.
nach 1 Std. Einlaufzeit
typ. £5 x107°/40 min.
(86 MHz)
typ.£5x10-4/K
NORM B(N)
HF-Synchronpegel = 100%
HF-Schwarzpegel = 73% (75%)
HF-WeiBpegel = 10%
(NORM lI)
(HF-Synchronpegel = 100%)
(HF-Schwarzpegel = 76%)
(HF-WeiBpegel = 20%)
NORM B BT+5,5MHz
(NORM | BT+6,0MHz)
(NORM N BT+4,5MHz)
NORM B 13 dB
(NORM | 7 GB)
(NORM N 10 dB)
Vertical signal:
Video output:
Video output:
BNC connector in rear panel
Output voltage Vpp = 4 V+0.5 V at
75Q
Output impedance R; = 75Q+5%
Cycle duration: 20 msec
Pulse width: 640 psec
BNC connector in rear panel
Output voitage: Vp, = 1 V at 75Q
Output impedance: R; = 75Q +3%
BNC connector in front panel
Variable video output
Output voltage, max.: Vpp) 2 V at 75Q
Output impedance: R; = 75 Q+3%
Polarity of the video voltage
switchable with a short-stroke
switch on the potentiometer.
Switch depressed: Positive polarity
Switch released: Negative polarity
2.7 HF section
2.7.1 Video carrier generator
Frequency
"range:
Frequency
stability:
Temperature
effect on
frequency:
Video
modulation:
Audio carrier
modulation:
Audio carrier/
video carrier
separation:
<37 MHz > 86 MHz
After a warmup time of 15 min
Typical + 3 x 10-4/10 min
After a warmup time of 1 hour
Typical + 5 x 105/10 min (86 MHz)
Typical + 5 x 1074/K
STANDARD B(N)
HF sync. level = 100%
HF black level = 73% (75%)
HF white level = 10%
(STANDARD 1)
(HF syne. level = 100%)
(HF black level = 76%)
(HF white level = 20%)
STANDARD B BT +5.5 MHz
(STANDARD | BT +6.0 MHz)
(STANDARD N BT +4,5 MHz)
STANDARD B 13 dB
(STANDARD | 7 dB)
(STANDARD N 10 dB)
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