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2-5
(5.1). OB Level Adjustment
Test Point:
Video Output Connector
8
Connect the terminated Oscilloscope with 75
Ω
to Video
Output Connector.
8
Adjust data with the ARROW keys so that the Pedestal
level becomes 50 mV ± 10 mV as shown in Fig. 5-5.
level becomes 50 mV ± 10 mV as shown in Fig. 5-5.
Fig. 5-5
8
Press the ENTER key for next adjustment.
(5.2). Video Output Gain 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 Video sig-
nal level becomes 700 mV ± 50 mV as shown in Fig. 5-6.
nal level becomes 700 mV ± 50 mV as shown in Fig. 5-6.
700 mV
±
50 mV
50 mV
±
10 mV
Fig. 5-6
8
Press the ENTER key for next adjustment.
(5.3). OB Confirmation (Don't Change Data)
8
Press the ENTER key for next adjustment.
(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.5-7, 5-8, 5-9 and Table 5-2.
level, phase and Red vector phase are adjusted to proper
position as shown in Fig.5-7, 5-8, 5-9 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:
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. 5-7 and Fig. 5-8.
and phase are adjusted to proper position as shown in
Fig. 5-7 and Fig. 5-8.
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. 5-7 and Fig. 5-8.
and phase are adjusted to proper position as shown in
Fig. 5-7 and Fig. 5-8.
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.
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