CFG253 Performance Verification & Adjustment Procedures
Page 4 of 19 Procedure #: CP1005 Revision: A
2. CHECK MAIN OUTPUT AMPLITUDES
a. Set-Up:
AMPLITUDE CW
DC OFFSET Pushed In
RANGE 1K
FUNCTION Triangle
VOLTS OUT Button Out
FREQ/10 Button Out
FREQ DIAL 3.0
b. Test Scope Set-Up:
Volts/Div 2V
Time/Div 0.2 mSec
c. Connect MAIN OUTPUT to test scope vertical input via coax cable and 50 ohm
terminator.
d. Check the test scope display for > 5 divisions (10V).
e. Rotate the AMPLITUDE knob to nearly CCW.
f. Set test scope to 10 mV/Div. Check that the display reduces to less than 5
divisions (50mV) as the AMPLITUDE knob approaches the CCW stop.
g. Set the VOLTS OUT button in and change the test scope Volts/Div to 5mV.
h. Check for a display of < 1 division (5mV) as the knob approaches the CCW stop.
i. Set the test scope Volts/Div to 0.2 V. Rotate the AMPLITUDE knob fully CW.
j. Check the display for > 5 divisions (1V).
k. Return the VOLTS OUT button to the out position and ensure that the
AMPLITUDE is CW.
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