Panasonic WV-CW370 Service Manual page 15

(8.1). White Balance 6 500°K ATW Limit R
Adjustment
Test Point: Video Output Cable
8 Change the Colour Temperature from 3 200°K to 6 500°K
by mounting the Colour Temperature Conversion Filters
on the Lens.
8 Aim the Camera at the White Chart or White Paper.
8 Set the Gain Control of the Vectorscope to maximum.
8 Adjust data with the ARROW keys so that the vector
shifts 10 % (Burst=100 %) to the Cyan side of the
Vectorscope as shown in Fig.5-10.
8 Press the ENTER key for next adjustment.
(8.2). White Balance 6 500°K ATW Limit B
Adjustment
Test Point: Video Output Cable
8 Keep the Colour Temperature at 6 500°K.
8 Aim the Camera at the White Chart or White Paper.
8 Set the Gain Control of the Vectorscope to maximum.
8 Adjust data with the ARROW keys so that the vector
shifts 10 % (Burst=100 %) to the Cyan side of the
Vectorscope as shown in Fig.5-10.
8 Repeat adjustment steps (8.1) and (8.2) until vector shifts
10 % (Burst=100 %) to the Cyan side of the Vectorscope.
g R
dø
20% 75%
Y
L
100%
dG
10°
0°
10°
yl
20%
dG
G
Fig. 5-10
8 Press the ENTER key for next adjustment.
(9.1). 3 200°K R Gain Adjustment
Test Point: Video Output Cable
8 Return the Colour Temperature from 6 500°K to 3 200°K
by removing the Colour Temperature Conversion Filters
from the Lens.
8 Aim the Camera at the Colour Chip Chart.
8 Adjust data with the ARROW keys so that the Red gain
becomes 220 % ± 5 %.
8 Press the ENTER key for next adjustment.
Note: Chrominance phase and gain are adjusted to proper
position as shown in Fig. 5-11 and Table 5-2.
Shifts 10% to
cy
Cyan side.
M
G
V
b
U
B
C
mg
Y
r
(9.2). 3 200°K B Gain Adjustment
Test Point: Video Output Cable
8 Keep the Colour Temperature at 3 200°K.
8 Adjust data with the ARROW keys so that the Yellow gain
becomes 120 % ± 5 %.
8 Press the ENTER key for next adjustment.
Note: Chrominance phase and gain are adjusted to proper
position as shown in Fig. 5-11 and Table 5-2.
(9.3). 3 200°K Phase Adjustment
Test Point: Video Output Cable
8 Keep the Colour Temperature at 3 200°K.
8 Adjust data with the ARROW keys so that the Red vector
phase becomes 108° ± 2°.
8 Repeat adjustment steps (9.1) to (9.3) until both
Chrominance phase and gain are adjusted to proper posi-
tion as shown in Fig. 5-11 and Table 5-2.
dø
20%
Y
dG
10°
0°
10°
20%
dG
Phase
Gain
8 Press the ENTER key for next adjustment.
(10.1). 5 100°K R Gain Adjustment
Test Point: Video Output Cable
8 Change the Colour Temperature from 3 200°K to 5 100°K
by mounting the Colour Temperature Conversion Filter on
the Lens.
8 Aim the Camera at the Colour Chip Chart.
8 Adjust data with the ARROW keys so that the Red gain
becomes 220 % ± 5 %.
8 Press the ENTER key for next adjustment.
2-9
cy
g R
M
G
V
75%
L
100%
b
U
B
yl
C
G mg
Y
r
Fig. 5-11
Red Yellow
± 2˚ ± 5˚
108˚ 165˚
220 % ± 5 % 120 % ± 5 %
Table 5-2