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Adjustment Procedures
VITS100 NTSC VITS Inserter Instruction Manual
6–7
Program color fields
1 and 3
Program color fields
2 and 4
Line 18 Line 17
Line 20 Line 19
Line 18 Line 17
Line 20 Line 19
S1 S2 S3 S4
Figure 6–3: VITS selection DIP switches
12. Change the coaxial cable from the VITS inserter MONITOR OUT to the
PROGRAM OUT.
13. Set the waveform/vector monitor line selector for line 17 all fields.
14. Set the waveform/vector monitor waveform gain to X5.
15. Adjust the DC ADJ, R127, to match the inserted 0% black to the program
lines from fields 2 and 4.
16. Turn the waveform/vector monitor line-select off.
Adjust program and test signal gain with the following steps.
1. Connect the test signal generator to the CH A input of the waveform/vector
monitor with two 75 W coaxial cables and a female-to-female BNC
connector as shown in Figure 6–4. Terminate the remaining side of the
monitor loop-through with a 75 W terminator.
Gain Adjustments