Tektronix WFM601, Service Manual

Page: 98 / 304

Performance Verification
4–10
WFM 601 - Service Manual
b. Select 1 FIELD SWEEP.
c. CHECK – for approximately 12 divisions of signal.
d. Select 2 FIELD SWEEP.
e. CHECK – for approximately 12 divisions of signal.
f. Select 2 LINE SWEEP (10
m
S/Div).
g. CHECK – for approximately 12 divisions of signal.
h. Select 1 LINE SWEEP (5
m
S/Div).
i. CHECK – for approximately 12 divisions of signal.
j. Push EXT REF.
k. CHECK – for approximately 12 divisions of signal.
l. Select 2 LINE SWEEP (10
m
S/Div).
m. CHECK – for approximately 12 divisions of signal.
n. Select 1 FIELD SWEEP.
o. CHECK – for approximately 12 divisions of signal.
p. Select 2 FIELD SWEEP.
q. CHECK – for approximately 12 divisions of signal.
r. Push EXT REF to turn it off.
8. Check Vertical Gain, Calibrator Amplitude, and Variable Gain Range
REQUIREMENT – 700 mV input = 700 mV
$
2%. Calibrator Amplitude: 700
mV
"
1%. Variable Gain Range: 0.2X to 1.4X. Serial Output Level = 800 mV
$
10%.
a. CHECK – that the signal display is 700 mV
"
14 mV (1 minor division
equals 20 mV).
b. Select Serial B.
c. CHECK – that the signal display is 700 mV
"
14 mV (1 minor division
equals 20 mV).
d. Connect a 75
W
coaxial cable, through a 75
W
feed–through termination,
from the WFM 601 rear-panel SERIAL OUT to the test scope vertical
input.