Many thanks for reply, all now working well. Morale: dont drink wine, even one glass, whilst programming radio ! Still can't find the manual and its almost two years since I last programmed a complex model, my BVM F4 but used aux 3 slaved to elevator.
The rest I could remember ! Nice to see JR now offer a three year warranty. Yesterday I found an old Apex 7 Receiver, 19 years old. Workds perfectly. Again, many thanks