Adjusting The Vbs Signal Level - Sony CCU-590 Maintenance Manual

2-4-4. Adjusting the VBS Signal Level

Adjust the level of the VBS signal output from the VBS
connector of the unit using a color-bar signal.
1. Adjustment by CONFIGURATION menu
1. Connect the RCP or RM to the CCU-590 and press the
BARS button to display the color-bar signal on a
waveform monitor or vectorscope.
2. Adjust the color-bar signal by the CCU CONFIGU-
RATION menu (page "C08") so that the signal meets
the specified level.
Test points: VBS 1 OUT connector/CCU rear panel
Specifications: A = 100 ± 1 IRE (for NTSC)
A = 700 ± 7 mV (for PAL)
Specifications:
[For NTSC]
The beam spots for each color shall be positioned inside
the corresponding frame 4 on the vectorscope.
[For NTSC]
R
M
G
Y
L
B
G
C
Y
2. Adjustment by on-board control
1. Extend the EN-156B board.
2. Adjust the level with the control 1RV303 on the EN-
156B board.
CCU-590/P/V1(E)
[For PAL]
A
[For PAL]
R
M
G
Y
L
B
G
C
Y
A
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