User Manual - TRS-RenTelco

Appendix B: Performance Verification
NOTE. Settings are for “CH3” rather than “CH1”, and “R” in place of “G”.
21. In Table B -9, subtract the Measured Black Levels (row 2) from the
Measured White Levels (row 1) and enter the results in row 3. These are the
Measured White-to-Black Amplitude values for each channel.
22. Calculate the Upper and Lower White limit values and the Upper and Lower
Black limit values, using the equations shown in Table B -9.
NOTE. The equations reference the DC700 and DC0 multimeter values from
Table B -8 on page B -20. For these calculations, make sure you use the
multimeter values from Table B -7 on page B -20, not the 9500B Amplitude
Setting values.
23. Check that the Measured White and Black levels for each channel fall within
the corresponding Upper and Lower limit vales.
24. Check that the Measured White-to-Black Amplitudes for each channel fall
within the corresponding Upper and Lower limit values.
25. Turn the 9500B OUTPUT OFF and disconnect the min-loss pad and cable
from the MIU input.
Table B- 9: Amplitude measurement results
Characteristic G B R
Measured White level
Measured Black level
Lower White limit value {(DC700) x (0.980)} - 8 mV
Upper White limit value {(DC700) x (1.020)} + 8 mV
Lower Black limit value
Upper Black limit value
Lower White-to-Black limit
value
Upper White-to-Black limit
value
(DC0)-8mV
(DC0) + 8 mV
{[(DC700) x (DC0)] x (0.982)} - 3 mV
{[(DC700) x (DC0)] x (1.018)} + 3 mV
VM5000 Automatic Video Measurement Set User Manual B-23