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2-6
(6). Burst Level Adjustment
8
Repeat adjustment from steps (6.1) to (6.4) until Burst
level, phase and Red vector phase are adjusted to proper
position as shown in Fig.4-6, 4-7, 4-8 and Table 4-2.
level, phase and Red vector phase are adjusted to proper
position as shown in Fig.4-6, 4-7, 4-8 and Table 4-2.
8
First, adjust the Burst Level and Phase according to fol-
lowing formula.
lowing formula.
DATA of (6.1) = DATA of (6.3)
DATA of (6.2) = DATA of (6.4)
DATA of (6.2) = DATA of (6.4)
Note the DATA at each adjustment step.
8
Then adjust the Burst Level according to following formu-
la.
la.
DATA of (6.1)
/
Current DATA –
α
DATA of (6.2)
/
Current DATA +
α
DATA of (6.3)
/
Current DATA –
α
DATA of (6.4)
/
Current DATA +
α
(6.1). Burst Level Adjustment
Test Point:
Video Output Connector
8
Keep the Colour Temperature at 3 200°K.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to Video
Output Connector.
8
Set the Mode Switch of the Vectorscope to NTSC mode.
8
Adjust data with the ARROW keys so that the Burst level
and phase are adjusted to proper position as shown in
Fig. 4-6 and Fig. 4-7.
and phase are adjusted to proper position as shown in
Fig. 4-6 and Fig. 4-7.
8
Note the DATA for step (6.3).
8
Press the ENTER key for next adjustment.
(6.2). Burst Level Adjustment
Test Point:
Video Output Connector
8
Keep the Colour Temperature at 3 200°K.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to Video
Output Connector.
8
Adjust data with the ARROW keys so that the Burst level
and phase are adjusted to proper position as shown in
Fig. 4-6 and Fig. 4-7.
and phase are adjusted to proper position as shown in
Fig. 4-6 and Fig. 4-7.
8
Note the DATA for step (6.4).
8
Press the ENTER key for next adjustment.
(6.3). Burst Level Adjustment
Test Point:
Video Output Connector
8
Keep the Colour Temperature at 3 200°K.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to Video
Output Connector.
8
Adjust data with the ARROW keys so that the data
becomes same value of adjustment step (6.1).
becomes same value of adjustment step (6.1).
8
Press the ENTER key for next adjustment.
(6.4). Burst Level Adjustment
Test Point:
Video Output Connector
8
Keep the Colour Temperature at 3 200°K.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to Video
Output Connector.
8
Adjust data with the ARROW keys so that the data
becomes same value of adjustment step (6.2).
becomes same value of adjustment step (6.2).
300 mV
±
10 mV
Fig. 4-6
M
G
Y
L
B
G
C
Y
dG
10
°
0
°
10
°
dø
100%
75%
R
V
U
20%
20%
dG
135
±
1
°
M
G
Y
L
B
G
C
Y
dG
10
°
0
°
10
°
dø
100%
75%
R
V
U
20%
20%
dG
90
±
2
°
NTSC mode
PAL mode
Fig. 4-7
8
Press the ENTER key.
8
Select the item "6.1 BURST LEVEL" with the ROLL
DOWN key and press the ENTER key.
DOWN key and press the ENTER key.
(6.1). Burst Level Adjustment
Test Point:
Video Output Connector
8
Keep the Colour Temperature at 3 200°K.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to Video
Output Connector.
8
Adjust data with the ARROW keys so that the data
becomes –
becomes –
α
from noted data.
8
Press the ENTER key for next adjustment.
(6.2). Burst Level Adjustment
Test Point:
Video Output Connector
8
Keep the Colour Temperature at 3 200°K.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to Video
Output Connector.
8
Adjust data with the ARROW keys so that the data
becomes +
becomes +
α
from noted data.
8
Press the ENTER key for next adjustment.
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