Tektronix 7A15A Instruction Manual page 27

I
I
j. Connect the square-wave generator fast-rise (1 nano-
•
second) output to the Input connector with the five-
nanosecond GR cable, 10X GR attenuator, and thru-line
I
EiO-ohm GR attenuator.
I
I
I
I
I
I
I.
I
I
I
I
I
I
I .
I
I
k. Set square-wave generator for a six-division display
(60 millivolts) of a 100 kilohertz signal.
i. Set time-base unit for a triggered display at a sweep
rate of 0.2 microseconds/division.
NOTE
In the fol/owing steps, change the time-base unit mag-
nifier from Xl to Xl0 and compare the response at
both sweep rates.
IREV. B, OCT. 1974
Calibration-7A15A17A15AN
m. CHECK-CRT display for optimum square-wave
response with aberrations not to exceed 0.24 divisions peak
to peak.
n. ADJUST -adjustments numbers 4 and 5 for optimum
square-wave response with aberrations. Use low-capacitance
screwdriver to adjust the variable capacitor. Repeat these
adjustments until optimum response is obtained.
This completes the calibration of the 7A15A/7A15AN.
Disconnect all test equipment.
5-5