I have a slightly younger 3PJS that was made after the 3PDF. The reset on mine functions by going to a particular function and the pressing the two buttons above and below 'reset' simultaneously for 1sec. It then resets that function only. I'm guessing this is the way yours works too. My 3PJS has a separate model reset (that is not a complete reset like a 3PK does) that listed in the radio as "RES .MDL". I don't think yours has one at all, at least I didn't see it in the 3PDF manual.

There is a screw missing for your ATL - there's supposed to be one there already. ALl thats said about it seems to be on pg8 in the manual. Sorry can't be of more help. Maybe try and call Futaba about getting teh right scew? They have a number listed on any Futaba ad on Tower hobbys site.