7.  Press Coupling repeatedly to 
select the trigger coupling, 
DC or AC. 
8.  Press Rejection to select the 
frequency rejection mode. 
9.  Press Noise Rej to turn the 
noise rejection on or off. 
10. Press Previous menu to go 
back to the previous menu. 
Configuring the video trigger 
 
1.  Press the Trigger menu key. 
2.  Press Type repeatedly to 
select video trigger. The 
video trigger indicator 
appears at the bottom of the 
display. 
3.  Press Source repeatedly to 
select the trigger source 
channel.