when i plug my motorola r2001d i watch just a vertical trace (see picture ) when i select 'scope AC' i have just a spot in screene , i can move this spot in vertical position but no horizontal move when i move horizontal botton .
i make the test the point TP1 TP4 TP5 TP6 for A2 modul :
TP1 : nice signal (see pic)
tp4 , tp5 : no signal (see pic )
tp6 : nice signal (see pic )
thaks and excuse for my bad english