I would recommend that you contact AJA technical support for assistance. You mention using the Panasonic AJ-HD1400 VTR which is an HD device that could be configured to output SD, so perhaps it\'s a simply a setting on the VTR that needs to be addressed.
Again, please feel free to contact AJA technical support for assistance.
AJA Video Systems
+1 (530) 274-2048 Intl.
(800) 251-4224 US