Performance Tests
TDS 520A, 524A, 540A, & 544A Service Manual
4Ć45
H , -- .# -$ 4' (/ /..)( Upper Limit .# ( /- .# " ( ,&
*/,*)- %() .) -&)1&3 decrease .# .# Upper Limit , )/.
/(.$& .,$"" ,$(" $- &)-.
H .#. .# Upper Limit , )/. $- 1$.#$( m-.)m-
$(&/-$0
Disconnect the hookup: $-)(( . .# & !,)' .# " ( ,.), )/.*/.
. .# $(*/. )(( .), )! CH 1
Check Accuracy, TriggerĆlevel or Threshold, DC Coupled
Equipment Required: ( &$,.$)( " ( ,.), . ' )(
)(( .), . ' ( .1) *, $-$)( W )2$& & - . '
Prerequisites: # )-$&&)-)* '/-. ' . .# *, , +/$-$. - &$-. )(
*" 4
Procedure:
Install the test hookup and preset the instrument controls:
Hook up the testĆsignal source:
H . .# )/.*/. )! &$,.$)( " ( ,.), .) 0)&.-
H )(( . .# )/.*/. )! &$,.$)( " ( ,.), .#,)/"#
/&4(( )(( .), !)&&)1 3 W *, $-$)( )2$&
& .) )( -$ )! )(( .), $"/, 4
H )(( . .# (- )/.*/. )! .# " ( ,.), .#,)/"# - )(
/&4(( )(( .), !)&&)1 3 W *, $-$)( )2$&
& .) ).# , -$ )! .# )(( .), )1 )(( . .#
)(( .), .) CH 1 $"/, 4
/.*/. (-
DC Calibrator
50 W Coaxial Cables
Dual Banana to
BNC Adapter
BNC T Connector
Figure 4Ć16:ăInitial Test Hookup
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