8
Fig. 3-3
(8). Output P
B
Gain Adjustment
Test Point:
Video Out P
B
Connector
Rear Panel
Adjust:
R442 (P
B
GAIN)
Mixer Board
8
Set the Video Out to MII Component by the Device
Setting.
8
Connect the terminated Oscilloscope with 75
Ω
to the
Video Out P
B
Connector.
8
Adjust VR442 so that the P
B
signal level of the build-in
Colour Bar signal (Setup = 0) becomes 525 mV as shown
in Fig. 3-4.
Fig. 3-4
Note: When using the
β
Component for the adjustment,
adjust it to 756 mV (106 ± 1 IRE).
(9). Output P
R
Gain Adjustment
Test Point:
Video Out P
R
Connector
Rear Panel
Adjust:
R443 (P
R
GAIN)
Mixer Board
8
Set the Video Out to MII Component by the Device
Setting.
8
Connect the terminated Oscilloscope with 75
Ω
to the
Video Out P
R
Connector.
8
Adjust R443 so that the P
R
signal level (p-p) of the build-in
Colour Bar signal (Setup = 0) becomes 525 mV as shown
in Fig. 3-5.
100
20
–20
–40
700
±
7
mV
Fig. 3-5
Note: When using the
β
Component for the adjustment,
adjust it to 756 mV (106 ± 1 IRE).
(10). Output C Gain Adjustment
Test Point:
Video Out Y/C Connector
Rear Panel
Adjust:
R441 (C GAIN)
Mixer Board
8
Connect the Vectorscope to the Video Out Y/C Connector.
8
Adjust VR441 so that the Chrominance Gain and Phase
are adjusted to proper position (± 3%, 3%) as shown in
Fig. 3-6.
Fig. 3-6
(11). Composite Y Gain Adjustment
Test Point:
Video Out Composite Connector
Rear Panel
Adjust:
R440 (COMP Y)
Mixer Board
8
Connect the Waveform Monitor to the Video Out
Composite Connector.
8
Adjust VR440 so that the Y signal level becomes 700 ± 7
mV as shown in Fig. 3-7.
Fig. 3-7
525 mV
525 mV
cy
g
M
G
Y
L
yl
B
b
G
C
Y
dG
10
°
0
°
10
°
dø
100%
75%
R
V
U
mg
r
20%
20%
dG
100
20
–20
–40
BURST
SYNC
700
±
7
mV