Performance veri
fi
cation
LTC level test
Perform this test to check the LTC levels are within limits. This test should be
performed in factory mode. (See page 19,
1.
Create an LTC load with voltmeter access by soldering a 600
Ω
resistor to
pins 2 and 3 of the female XLR connector.
2.
Connect the LTC load with voltmeter access to the LTC 1 connector on the
LTC/GPIO breakout adapter cable.
3.
Connect the LTC/GPIO adapter cable to the DSUB connector on the rear of
the module.
4.
Connect a BNC-to-test clip adapter to the voltmeter using a BNC-to-Banana
adapter and BNC cable.
5.
Attach the clips to either side of the 600
Ω
resistor.
Figure 11: Setup for LTC level test
6.
Press the
LTC
button to select
LTC 1
.
7.
Press the right (
►
) or left (
◄
) arrow button to view
Output (if allowed)
on the menu.
8.
Press the
ENTER
button.
9.
Press the down arrow button to select
LTC 1 : SOURCE
.
10.
Press the right (
►
) arrow button to select
Program Time
, and then press
the
ENTER
button.
SPG8000 Speci
fi
cations and Performance Veri
fi
cation
51
