Tektronix 475 User Manual

h. Set the A SOURCE switch to CH 1.
Calibration—475
I. Replace the X I0 BNC attenuator to the test setup.
i. CHECK—A stable display can be obtained on both
slopes of the displayed waveform in the AC, LF REJ, and
DC positions of the A COUPLING switch by adjusting the
A LEVEL control.
j. Set the A SOURCE switch to NORM.
k. CHECK—Repeat step 45-i.
46. Check A External 40 Megahertz Triggering
a. Set the HORIZ DISPLAY switch to A, the A
SOURCE switch to EXT, the B SOURCE switch to NORM,
and the CH 1 VOLTS/DIV switch to 20 mV.
b. Adjust the Medium-Frequency signal generator for a
five division display of a 40 megahertz signal.
c. Add a X2 BNC attenuator to the External Trigger
signal test setup between the X I0 BNC attenuator and the
50 £2 BNC termination.
d. CHECK—A stable display can be obtained, by
adjusting the A LEVEL control, on both slopes of the
displayed waveform in the AC and DC positions of the A
COUPLING switch.
e. Remove the X2 BNC attenuator from the External
Trigger signal test setup.
f. CHECK—A stable display can be obtained, by
adjusting the A LEVEL control, on both slopes of the
displayed waveform in the LF REJ position of the A
COUPLING switch.
g. Set the A SOURCE switch to EXT -F 10.
h. Remove the X I0 BNC attenuator from the test setup.
i. CHECK—Repeat step 46-f.
j. Replace the X2 BNC attenuator to the test setup.
k. CHECK—Repeat step 46-d.
47. Check B External 40 Megahertz Triggering
a. Set the HORIZ DISPLAY switch to B D LY'D, the B
SOURCE switch to EXT, and the A SOURCE switch to
NORM.
b. Adjust the Medium-Frequency signal generator for a
five division display.
c. CHECK—A stable display can be obtained, by
adjusting the LEVEL controls, on both slopes of the
displayed waveform in the AC and DC positions of the B
COUPLING switch.
d. Remove the X2 BNC attenuator from the test setup.
e. CHECK—A stable display can be obtained, by
adjusting the LEVEL controls, on both slopes of the
displayed waveform in the LF REJ position of the B
COUPLING switch.
f . Disconnect the test setup.
48. Check External 200 Megahertz Triggering
a. Set the TIM E /D IV switch to 10jus, the TRIG MODE
switch to AUTO, the X10 MAG button in, both VOLTS/
DIV switches to 1 V, the VERT MODE switch to CH 1, and
the A SOURCE switch to EXT.
b. Connect the High-Frequency Constant-Amplitude
Signal Generator (067-0532-01) to the A and B External
Trigger inputs via a 50 £2 Signal Pickoff Unit (Type CT-3),
GR-to-BNC adapter, X I0 BNC attenuator, X2 BNC
attenuator, 50 £2 BNC termination, and a dual-input
coupler.
c. Connect the 10% BNC output connector of the Signal
Pickoff Unit to the CH 1 and CH 2 inputs via an 18-inch
50 £2 BNC cable, a 50 £2 BNC termination, and a dual input
coupler.
d. Adjust the High-Frequency signal generator for a five
division display of a 3 megahertz signal.
e. Set the TIM E/D IV switch to 0.1 (a s.
®
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Tektronix 475 Specifications

General

Brand	Tektronix
Model	475
Category	Test Equipment
Language	English