Calibration—475
52. Check B 60 Hertz and LF REJ Triggering
p. CHECK—Repeat step 52-f.
a. Set the B TIM E /D IV switch to 5ms, the HORIZ
DISPLAY switch to B DLY'D, both SOURCE switches to
NORM, and both VOLTS/DIV switches to 0.1 V.
q. Set the B SOURCE switch to EXT.
b. Connect the Low-Frequency Sine-Wave Generator
(General Radio 1310-A) to the CH 1 input via a 42-inch
r. CHECK—Repeat step 52-e.
50 £2 BNC cable, a BNC-T connector, an 18-inch 50 £2 BNC
cable, and a 50 £2 BNC termination.
s. CHECK—Repeat step 52-f.
c. Connect the other side of the BNC-T connector to the
B External Trigger input via a X10 BNC attenuator and a
53. Check A 60 Hertz and LF REJ Triggering
50 £2 BNC termination.
a. Set the HORIZ DISPLAY switch to A.
d. Adjust the Low-Frequency generator for a 0.3
division display of a 60 hertz signal.
b. Move the signal from the B External Trigger input to
the A External Trigger input.
e. CHECK—That a stable display can be obtained on
both slopes of the displayed waveform in the AC, HF REJ,
and DC positions of the B COUPLING switch, by adjusting
the LEVEL controls.
c. CHECK—That a stable display can be obtained on
both slopes of the displayed waveform, in the AC, HF REJ,
and DC positions of the A COUPLING switch, by adjusting
the A LEVEL control.
f. CHECK—That a stable display cannot be obtained in
the LF REJ position of the B COUPLING switch.
d. CHECK—That a stable display cannot be obtained in
the LF REJ position of the A COUPLING switch.
g. Set the B SOURCE switch to CH 1.
e. Set the A SOURCE switch to CH 2.
h. CHECK—Repeat step 52-e.
f. CHECK—Repeat step 53-c.
i. CHECK—Repeat step 52-f.
g. CHECK—Repeat step 53-d.
j. Set the B SOURCE switch to CH 2.
h. Set the A SOURCE switch to CH 1.
k. CHECK—That a stable display cannot be obtained in
any position of the B COUPLING switch.
i. CHECK—That a stable display cannot be obtained in
any position of the A COUPLING switch.
1. Move the test signal from the CH 1 input to the CH 2
input.
j. Move the test signal from the CH 2 input to the CH 1
input.
m. Set the VERT MODE switch to CH 2. k. Set the VERT MODE switch to CH 1.
n. Adjust the Low-Frequency generator for a 0.3
division display of a 60 hertz signal.
1. Adjust the Low-Frequency generator for a 0.3 division
display of a 60 hertz signal.
o. CHECK—Repeat step 52-e.
m. CHECK—Repeat step 53-c.
5-46
®
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