Triggering
TDS 620A, 640A & 644A User Manual 2Ć17
 #!"   ! %  " %$    "
"  # !" "! '#   '  !#  " %"  !
  " "   "" # ! " "  ! "  "   "
  """ # !  " "  !" !""   "
 '# $!#( " "  !" !"" " " "  " !'
!  " %  " "  # !  " %$   #
!" "  (" # %"  " " %$    %
"  "   "
' #! ! !'  "   " $# " #!"
"#  &  '#   " '"  " #!  #%"
" '# "!"  #" " ' $ $# " "  " " 
 " "      # ""#  "   " "
' '(%"    " "'# ' #$ #! #"
" !#  " "
 !"  " ! %" " !!! " "  "
 " ! "    ! ! #  )
#!" "  ! ' !"Slope  "    #  "
!"  " !   !!  " ! #""  !
 $"  " ! %   "" " "  " # !
! # )
PositiveĆGoing Edge NegativeĆGoingEdge
TriggerSlope Can be Positive or Negative
TriggerLevel Can be
Adjusted Vertically
Figure 2Ć3:ăSlope and Level Controls Help Define the Trigger
 "(!! "! '# !" " " �� $ %" "" 
MAIN LEVEL 
Trigger PositionSlope and Level