4-11
t. Disconnect the test setup.
s. Repeat parts j through p to check bandwidth limit
for CH 1.
r. Select VERTICAL MODE and set CH 1 on.
q. Set the VERTICAL BANDWIDTH to FULL. Move
the 50 Q cable from the CH 2 input to the CH 1 input
connector.
p. CHECK-That the generator output frequency is
from
40
MHz to 55 MHz.
o. Set the VERTICAL BANDWIDTH to 50 MHz on and
increase the generator output frequency until the display
amplitude is 4.2 divisions.
n. CHECK-That the generator output frequency is
from 13 MHz to 24 MHz.
m. Increase the generator output frequency until the
display amplitude is 4.2 divisions.
I.
Select VERTICAL BANDWIDTH and set to 20 MHz
on. Set the A SEC/DIV to 20 ns.
k. Set the generator to a 50 kHz reference frequency
and adjust the output level for a
6
division display (change
attenuators as required).
j. Set A SEC/DIV to
10
os.
i.
Repeat parts b through g to check CH
2
bandwidth,
substituting CH
2
controls and input connector.
off.
h. Select VERTICAL MODE and set CH 2 on and CH 1
g. Repeat parts c through f for all CH 1 VOLTS/DIV
settings through 500 mV, removing and/or adding attenua-
tors as necessary to allow adjusting the generator output
level to
6
divisions.
Performance Check and Functional Verification Procedure
2430 Service
REV DEC 1986
f. Return the A SEC/DIV control to
200
ns and set the
CH 1 VOLT/DIV control to the next higher setting.
e. CHECK-The display amplitude is 4.2 divisions or
greater.
d. Set A SEC/DIV to 5 ns.
c. Set the generator output level for a 6 division
display at the 3 MHz reference frequency, then change the
output frequency to 150 MHz.
b. Connect the output of the Leveled Sine-Wave Gen-
erator to the CH 1 OR X input connector via a precision
50 Q BNC cable, a 10X Attenuator, and a 2X Attenuator.
Off
Select VERTICAL MODE
Set: CH 2
2
mV
2
mV
200 ns
CH 1 VOLTS/DIV
CH
2
VOLTS/DIV
A SEC/DIV
Set:
6. Check CH 1 and CH 2 Bandwidth and
Bandwidth Limit (20 MHz and 50 MHz).
a. Recall the Initial Front Panel Setting by performing
the following sequence: Select SAVE/RECALL SETUP,
press the menu button labeled RECALL (menu will
change), and then press the menu button labeled 1. Make
the following changes to the front panel setup:
I.
Disconnect the test setup.
k. Repeat parts c through h to check CH
2
position
range, using the CH
2
input connector and controls.
j. Select VERTICAL MODE and set CH 2 on and
CH
1
off.
i.
Reinstall the 5X attenuator and move the cable to
the CH
2
OR
Y
input.
h. CHECK-That the top of the waveform is within
+0.4
to
-0.7
division of the center horizontal graticule
line.
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