Performance Tests
TDS 520A, 524A, 540A, & 544A Service Manual
4Ć33
Confirm the input channels are within limits for analog bandwidth: % )
%""%,$ (*()&(Ċ )() '() skipping substepsa and b since
CH 1 is already set up for testing from step 1.
Select an unchecked channel:
H '(( WAVEFORM OFF )% '#%+ ) $$" *() %$'#
'%# (&"-
H '(( ) '%$)0&$" *))%$ )) %''(&%$( )% ) $$" -%*
' )% %$'#
H %+ ) "+"$ )% ) $$" -%* (")
Match the trigger source to the channel selected:
H '(( TRIGGER MENU
H '(( ) #$0#$* *))%$ Source
H '(( ) (0#$* *))%$ )) %''(&%$( )% ) $$"
(")
Set its input impedance:
H '(( VERTICAL MENU )$ &'(( ) #$0#$* *))%$
Coupling
H '(( ) (0#$* W *))%$ )% )%" ) )% ) 50 W ())$
Set the vertical scale: ) ) +')" SCALE )% %$ % ) ())$(
"() $ "0 $%) -) ! )') ,) ) # ())$
TableĂ4Ć5:ăAnalog Bandwidth
Vertical Scale
Attenuators
(10X)
Reference Amplitude
(at 6 MHz)
Horizontal
Scale
Test
Frequency Limits
/# $%$ /# +(%$( $( . /#
$%$ +(%$( $( .
/# $%$ +(%$( $( .
/# $%$ / +(%$( $( . #
/# # +(%$( $( . #
/# /# +(%$( $( . #
/# /# +(%$( $( . /#
/# /# +(%$( $( . /#
/# /# +(%$( $( . /#
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