Adjusting The Level Of Signals For Waveform Monitor - Sony HDCU-900 Series Installation And Maintenance Manual

2-4. Video Signal System
3. Adjust the color bar signal using the VBS LEVEL,
VBS CHROMA and VBS SYNC controls on the IF-
789A/789P board panel so that it is within the speci-
fied level.
Measurement point : VBS OUT 1 connector on the
HDCU rear panel
A = 100 ± 1 IRE [for UC]
Specifications :
A = 700 ± 7 mV p-p [for CE]
(VBS LEVEL control)
B = 40.0 ± 0.4 IRE [for UC]
B = 300 ± 3 mV p-p [for CE]
[for UC]
B
(VBS SYNC control)
Each luminescent spot on the vector monitor must be
within the "4" range.
[for UC]
R
M
G
Y
L
B
G
C
Y
(VBS CHROMA control)
Setting after Adjustment
Reset switch S708-1 on the IF-789A/789P board to OFF.
2-24 (E)
[for CE]
A
B
[for CE]
R
M
G
Y
L
B
G
C
Y
2-4-4. Adjusting the Level of Signals for
Waveform Monitor
The video output signal of the unit can be checked on the
waveform monitor connected to the WF output connector.
Adjust the WF output signal level using the color bar
signal.
In the system with the MSU-700A/750, CNU-700/500 or
VCS-700, the video output signal can be checked on the
waveform monitor connected to the VCS-700.
Adjusting the WF Output Signal Level
How to adjust on the RC-86 board of the unit
A
9 8 7
1. Press the BARS button of the MSU-700A/750, RCP-
740/741, etc., or press the ENC button of the WAVE-
FORM MONITOR buttons (or MONITOR SELECT
buttons) to display the color bars on the waveform
monitor.
2. Adjust the color bar signal using control RV350
(WFM GAIN) on the RC-86 board so that it is within
the specified level.
Measurement point : WF OUT connector on the
Specification :
[for UC]
6 5 4 3 2
1
RV350
RC-86 board (A side)
HDCU rear panel
A = 100 ± 1 IRE [for UC]
A = 700 ± 7 mVp-p [for CE]
[for CE]
A
HDCU-900 IMM
1
A
B
C
D
E
F
A