User's Manual
Selecting Channels
TDS 620A, 640A & 644A User Manual
3Ć127
( + % ,$'" #'' %
* ++$'" CH 1, CH 2, CH 3 AUX 1 (' ,# (* CH 4 AUX 2 ('
,# ,-*'+ ,# #'' % (' $! $, $+ '(, %* 1 ('
(- ( '(, -+ ,# #'' % + % ,$(' -,,('+ /# ' ,*$"" *$'" '+, 1(-
+ % , ,# ,*$"" * +(-* $' ,# $' *$"" * & '- (* %1 *$"" * & '-
Removing Waveforms From the Display
# WAVEFORM OFF -,,(' ,-*'+ ,# $+)%1 (! ,# + % , #'' %
/. !(*& , /$%% %+( * &(. !*(& ,# $+)%1 '1 -,(&, & +-* & ',+
$'" & (' ,#, /. !(*&
# ' 1(- ,-*' (!! /. !(*& ,# $"$,$2$'" (+$%%(+() -,(&,$%%1
+ % ,+ ,# ' 0, #$"# +, )*$(*$,1 /. !(*& $"-* 3 +#(/+ #(/ ,#
(+$%%(+() )*$(*$,$2 + /. !(*&+
ă1. CH1
ă2. CH2
ă3. CH3
AUX 1 (' ,#
ă4. CH4 AUX 2 (' ,#
ă5. MATH1
ă6. MATH2
ă7. MATH3
ă8. REF1
ă9. REF2
10. REF3
11. REF4
Figure 3Ć67:ăWaveform Selection Priority
! 1(- * ,-*'$'" (!! &(* ,#' (' /. !(*& ' 1(- +,*, 1 ,-*'$'" (!!
#'' % /. !(*& %% #'' %+ /$%% ,-*' (!! !(* "($'" ,( ,#
/. !(*&+ ! 1(- +,*, 1 ,-*'$'" (!! ,# /. !(*&+ %% ,#
/. !(*&+ /$%% ,-*' (!! !(* "($'" ,( ,# #'' % /. !(*&+
! 1(- ,-*' (!! #'' % ,#, $+ ,*$"" * +(-* $, (',$'- + ,( ,# ,*$"" *
+(-* . ' ,#(-"# ,# /. !(*& $+ '(, $+)%1
(' )" 3
(' )" 3
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