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– 7 –
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 posi-
tion as shown in Fig.5-8, 5-9, 5-10 and Table 5-2.
phase and Red vector phase are adjusted to proper posi-
tion as shown in Fig.5-8, 5-9, 5-10 and Table 5-2.
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:
CN5 (Video Output Connector)Video Board
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to CN5.
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. 5-8 and Fig. 5-9.
and phase are adjusted to proper position as shown in
Fig. 5-8 and Fig. 5-9.
8
Note the DATA for step 6.3.
8
Press the ENTER key for next adjustment
6.2. Burst Level Adjustment
Test Point:
CN5 (Video Output Connector)Video Board
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to CN5.
8
Adjust data with the ARROW keys so that the Burst level
and phase are adjusted to proper position as shown in
Fig. 5-8 and Fig. 5-9.
and phase are adjusted to proper position as shown in
Fig. 5-8 and Fig. 5-9.
8
Note the DATA for step 6.4.
8
Press the ENTER key for next adjustment.
6.3. Burst Level Adjustment
Test Point:
CN5 (Video Output Connector)Video Board
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to CN5.
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:
CN5 (Video Output Connector)Video Board
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to CN5.
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. 5-8
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. 5-9
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:
CN5 (Video Output Connector)Video Board
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to CN5.
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:
CN5 (Video Output Connector)Video Board
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the terminated Oscilloscope with 75
Ω
to CN5.
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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