Performance Tests
TDS 520A, 524A, 540A, & 544A Service Manual
4Ć55
Modify the initialized frontĆpanel control settings:
H $ $ ") $ SCALE $ m#
H "## SHIFT $ ACQUIRE MENU
H "## $ *% %$$ Mode !"## $ #*%
%$$ Hi Res
Confirm Main and Delayed Trigger outputs are within limits for logic levels:
Display the test signal:
H "## WAVEFORM OFF $ $%" $ !"## CH 2 $
#!( $$ $ $ &"$ SCALE $
H "## TRIGGER MENU
H "## $ *% %$$ Source $ !"## $ #*%
%$$ CH 3 "## SET LEVEL TO 50%
H # $ &"$ POSITION $ $" $ #!( #"
Measure logic levels:
H "## MEASURE $ !"## $ *% %$$ Select
Measrmnt for Ch2
H !$( !"## $ #*% %$$ -more- %$ High
Low !!" $ # % $" # " # ' $ $ $
"## $ #*% %$$ # High Low %" *
First, turn on the
measurements
high and low.
Second, read the
measurement
results here.
Figure 4Ć22:ăMeasurement of Main Trigger Out Limits
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