Performance veri
fi
cation
d.
You should see
INPUT-OUTPUT
in the menu. If you do not, press the
down (
▼
) arrow button until it appears.
e.
You should see
OUTPUT
(if allowed) in the menu. If you do, press the
ENTER
button. If you do not, press the right (
►
) arrow button until it
appears in the menu, and then press the
ENTER
button.
f.
Press the down (
▼
) arrow button until
SELECT FORMAT
appears in
the menu and then press the
ENTER
button.
g.
You should see
NTSC
in the menu. If you do, press the
ENTER
button.
If you do not, press the right (
►
) arrow button until it appears, and then
press the
ENTER
button.
h.
Press the right (
►
) arrow button until
Black Burst with Field REF
appears, and then press the
ENTER
button.
i.
Press the
BACK
button twice to exit the menu.
3.
Set the REF source of the SPG8000 under test to NTSC Burst as follows:
a.
Press the
REF
button.
b.
You should see
SOURCE
in the menu. If you do not, press the down
(
▼
) arrow button until it appears.
c.
Press the right (
►
) arrow button until
NTSC Burst
appears, and then
press the
ENTER
button.
4.
Run the GPS ADC Bus stuck and short diagnostics on the SPG8000 under
test as follows:
a.
Press the
SYSTEM
button.
b.
Press the up (
▲
) arrow button until you see
SYSTEM : DIAGNOSTICS
.
c.
Press the
ENTER
button to enter the Diagnostics menu.
d.
Press the down (
▼
) arrow button to select
GPS ADC BUS
.
e.
View the results for the
Stuck
and
Short
bits.
5.
Check the following and record Pass or Fail under
Genlock ADC Bus Stuck
and
Genlock ADC Bus Short
in the test record, depending on the following
conditions:
If all bits in the
Stuck
fi
eld show a “-”, they all have activity. Record Pass
in the test record.
If any bits in the
Stuck
fi
eld show an
H
or an
L
, then the bit is not moving.
Record Fail in the test record.
If all bits in the
Short
fi
eld show a “-”, then none as shorted together.
Record Pass in the test record.
If any bits in the
Short
fi
eld show an
S
, then record Fail in the test record.
SPG8000 Speci
fi
cations and Performance Veri
fi
cation
39
Содержание Tektronix SPG8000
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Страница 12: ...General safety summary vi SPG8000 Specifications and Performance Verification...
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