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– 6 –
300 mV
±
30 mV
1. FSC Adjustment
Test Point:
Pin 2 of CN2 (14MHz)
Sensor Board
8
Set the Synchronization Mode Selector (on the Video
Board SW1) to INT Position.
Board SW1) to INT Position.
8
Connect the Frequency Counter to Pin 2 of CN2.
8
Adjust data with the ARROW keys so that the Subcurrier
Frequency becomes 14.18750 MHz ± 40 Hz.
Frequency becomes 14.18750 MHz ± 40 Hz.
8
Press the ENTER key for next adjustment.
3. ALC Level Adjustment
Test Point:
Pin 1 of CN2 (CDS OUT)
Sensor Board
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the Osilloscope to the Pin 1 of CN2.
8
Adjust data with the ARROW keys so that the CDS OUT
signal level becomes 300 mV ± 30 mV as shown in Fig.
5-4.
signal level becomes 300 mV ± 30 mV as shown in Fig.
5-4.
Fig. 5-4
8
Press the ENTER key for next adjustment.
4. AGC OFF Gain Adjustment
Test Point:
Pin 3 of CN2 (AGC OUT)
Sensor Board
8
Keep the Colour Temperature at 3 200ºK.
8
Aim the Camera at the Logarithmic Gray Scale Chart.
8
Connect the Osilloscope to the Pin 3 of CN2.
8
Adjust data with the ARROW keys so that the AGC OUT
signal level becomes 300 mV ± 30 mV as shown in Fig.
5-5.
signal level becomes 300 mV ± 30 mV as shown in Fig.
5-5.
300 mV
±
30 mV
Fig. 5-5
8
Press the ENTER key for next adjustment.
5.1. OB Level Adjustment
Test Point:
CN5 (Video Output Connector)Video Board
8
Connect the terminated Osilloscope with 75
Ω
to CN5.
8
Adjust data with the ARROW keys so that the Pedestal
level becomes 50 mV ± 10 mV as shown in Fig. 5-6.
level becomes 50 mV ± 10 mV as shown in Fig. 5-6.
Fig. 5-6
8
Press the ENTER key for next adjustment.
5.2. Video Output Gain 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 Video sig-
nal level becomes 700 mV ± 50 mV as shown in Fig. 5-7.
nal level becomes 700 mV ± 50 mV as shown in Fig. 5-7.
700 mV
±
50 mV
50 mV
±
10 mV
Fig. 5-7
8
Press the ENTER key for next adjustment.
5.3. OB Confirmation (Don't Change Data)
8
Press the ENTER key for next adjustment.
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