Performance Tests
TDS 520A, 524A, 540A, & 544A Service Manual
4Ć35
! Check against limits:
H -"- -" PkĆPk +).- )( ,+( #, 0#-"#( -" &#'#-, &#,-
#( &4 )+ -" .++(- /+-#& ,& ,--#(!.
H "( #(#," "%#(! ,- -" ")+#3)(-& SCALE % -) -"
(, ,--#(!
"%#(! " "((&, (0#-" - && /+-#& ,& ,--#(!, #,
-#' )(,.'#(! ( .((,,+2 ). '2 ,%#* "%#(! -" +4
'#(#(! /+-#& ,& ,--#(!, #( &4 -"- #, ,%#* -" )&&)0#(!
,.,-* " # -"#, #!#-#3#(! ),#&&),)* ", *+ )+' , )&&)0,
H ,, -" ' /+-#& ,& ,--#(! $.,- "% #( -"#,
*+).+
H ,, -" Verify Internal Adjustment, Self Compensation, and
Diagnostics *+).+ ).( .(+ Self Tests, )( *! 4
NOTE
Passing the signal path compensation confirms the signal path for
all vertical scale settings for all channels. Passing the internal diagĆ
nostics ensures that the factoryĆset adjustment constants that conĆ
trol the bandwidth for each vertical scale setting have not changed.
" Check remaining vertical scale settings against limits (optional):
H ,#+ #(#," "%#(! -" +'#(#(! /+-#& ,& ,--#(!, )+
-" "((& .(+ -,- 2 +*-#(! ,.,-*, -"+).!" ! )+
" ) -" +'#(#(! ,& ,--#(!, ,--#(!, &#,- #( &4
)+ -" "((& .(+ -,-
H "( )#(! ,.,-* ,%#* -" ,.*+-, -"- -.+( )( -" 1
%4% ',.+'(- .(-#& 2). "% (0 "((&
H (,-&&+')/ --(.-)+, -0( -" !(+-)+ &/&#(!
" ( -" "((& #(*.- , #, ( -) )-#( -" ,#1 #/#,#)(
+ +( ,#!(&, &#,- #( -" -&
# Test all channels: *- ,.,-*, -"+).!" ! )+ && ).+ "((&,
Disconnect the hookup: #,)((- -" -,- "))% .* +)' -" #(*.-
)((-)+ ) -" "((& &,- -,-
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