Performance Tests
TDS 520A, 524A, 540A, & 544A Service Manual
4Ć31
Third, turn on the
Measurement called
mean and read the
results here.
Second, input a DC
level equal to the offset
plus 3 divisions.
First set vertical and position
offsets to maximum (no input).
Note gnd ref indicator bounded
onĆscreen for the offset baseline
below screen.
Figure 4Ć7:ăMeasurement of DC Accuracy at Maximum Offset and Position
Check against limits:
H && & $"'& "$ & %'$ !& Mean $"'& "!
%$! % )&! & &% %& "$ & '$$!& ($& % !
#"%&"!"%&!$&"$ %&&!%
H #& %&# $($%! & #"$&* " & #"%&"! "%& !
!$&"$ %&&!% % % %& ! & &
H && & Mean %'$ !& $"'& "! %$! % )&!
& &% %& "$ & '$$!& ($& % %&&! ! #"%&"!
"%&!$&"$ %&&!%
H #& %'%&#% &$"' '!& ($& % %&&!% %&+
&!% %& ! + ! + "$ & !
$ "$ & !! '!$ &%&
Test all channels: #& %'%&#% &$"' "$ "'$ !!%
Disconnect the hookup:
Set the generator output to 0 V
! %"!!& & $" & !$&"$ "'&#'& & & !#'&
"!!&"$ " & !! %& &%&
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