Performance veri
fi
cation
Black output rise and fall
time test
Perform this procedure to check that the Black output rise and fall time meet
speci
fi
cations.
Use the same setup as the previous test. (See Figure 9.)
1.
Connect the
BLACK 1
output of the SPG8000 to the oscilloscope and
terminate the input with a 75
Ω
feedthrough terminator.
NOTE.
Make sure that the oscilloscope input is set to 1 M
Ω
mode if you are using
the feedthrough terminator.
2.
Press the
BLACK
button until you see the
BLACK 1 : FORMAT
menu.
3.
Use the left (
◄
) or right (
►
) arrow button to select
NTSC
.
4.
Press the
ENTER
button.
5.
Press the
BLACK
button until you see
BLACK 1-3 : HD TRI-LEVEL
SYNC RATE
in the menu.
6.
Press the left (
◄
) arrow button to select
Integer
, and press the
ENTER
button.
7.
On the oscilloscope, set the trigger slope to negative and then measure the
10 % to 90 % fall time of the falling sync edge.
8.
Record the result in the test record.
9.
Press the
BLACK
button until you can see the
BLACK 1 : FORMAT
menu.
10.
Use the right (
►
) arrow to select a
1080 60i
signal format.
11.
Press the
ENTER
button.
12.
On the oscilloscope, set the trigger slope to positive and then measure the
10% to 90% rise time of the rising edge in the middle of the Tri-level Sync.
13.
Record the result in the test record.
14.
Repeat the above steps for the Black 2 and Black 3 outputs, skipping steps
5 and 6.
SPG8000 Speci
fi
cations and Performance Veri
fi
cation
49
