20-05-2024, 08:38 AM
(19-05-2024, 10:09 PM)James2001 Wrote: Unlike the BBC where it was triggered by a piece of equipment at TV Centre being unplugged and plugged back in.Unplugging the input to the Sound in Syncs encoder - that then output black level with no Field syncs ..
Detect Field syncs at the trasnmitter -
if they are there .....turn on with sequence of getting each stage up befre the next
if not after a time out ... turn off.
There was something always on the line so the PO did not disconnect it.