
9
a. Select the SMPTE color bar pattern from the CSG-50
b. Connect the waveform monitor to Video Out and set it to observe 2H lines with the DC restorer set to ON, and the
blanking level positioned to 0 IRE.
c. Adjust R11 AMP for a video level of 1 volt p-p (140 IRE), ±1.4 IRE (1%) as measured from the -40 IRE sync tip level
to the 100 IRE white level.
d. Switch to the vector scope and adjust C37 EQ to place the chroma vectors at the centers of the targets. If only a
waveform monitor is available, adjust C37 so the tops of the yellow and cyan chroma levels (next to the SMPTE 100
IRE white level) are also at 100 IRE.
5.6 Audio Tone Amplitude
a. Connect the voltmeter to the 1KHz 0dB output and set it to measure AC RMS volts.
b. Adjust R23 for a reading of 776mV RMS (2.19V p-p), ±7.8mV (1%).
6
SPECIFICATIONS
Power
Operation
9-to-14V DC, 250 milliamperes
Connector
3.5 MM mini phone jack
AC Adapter
9 volt, 500 milliamperes
Color Bar Output
Standard
RS-170A timing
SMPTE
SMPTE EG-1-1990
Full-Field
EIA RS-189A colors
Amplitude
1volt (140 IRE) peak-to-peak
with 75-Ohm termination
Black-Burst Output
Standard
RS-170A timing
Amplitude
Equivalent to 1 volt p-p video with
with 75-Ohm termination. +7.5 IRE black level
Sync Pulse Output
Standard
RS-170A timing
Type
Composite sync
Amplitude
- .5volts with 75-Ohm termination
Audio Tone Output
Type
1 KHz .05% crystal controlled sine wave
Amplitude
OdB =775 mV RMS =OdB/OdBu, adjustable for OdB=1.0V RMS=OdBV
Impedance
Less than 20 ohms
Ref Frame Output
Type
1H pulse (63.5uS) on line 262 of
color field 4
Amplitude
+5 volts, (HCMOS)
Connectors
VIDEO OUT
SYNC OUT
BNC
REF FRAME
OUT
RCA
POWER
3.5MM Mini Phone
Switches And Controls
Power
0N/OFF toggle switch with associated red LED
Содержание CSG-50
Страница 11: ...11...