In most cases SMPTE should have been set correctly from the factory, but ETC did run into
a few systems that needed adjustment in the field. If the adjustments do not fix the problem
use SMPTE Quickguide and verify the source. The typical output will be +4 to +8 dBm, with
a source impedance of 50 to 600 ohms. This is roughly a 1.2 to 2 volt, peak-to-peak signal.
If source is absolutely known good, then hardware problem exists.
Verify that ECO1886 was installed. You should see wire mod on back and cut trace.
If not, ECO1886 will need to be performed.