b. Set VECTORS ON:OFF to OFF for the displayed
menu.
a. Press the tront-panel button labeled SELECT.
Select CH 1 COUPLING/INVERT
Set: 50
n
ON:OFF OFF
Select VERTICAL MODE
Set: CH 2 Off
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:
10. Check Display Versus Graticule Centering
and Dot Versus Vector Display Offset.
Check VECTOR Response for NORMAL and
ENVELOPE Acquisition Modes.
aa. Disconnect test setup.
z. VERIFY-That the trace is within
±
2 divisions of
the center graticule line.
y. Set the CH 1 VOLTS/DIV to 5 mV and the CH 1
COUPLING to DC.
x. Use the CH 1 VERTICAL POSITION control to align
the grounded trace to the center horizontal graticule line.
w. Select CH 1 COUPLING/INVERT and set GND on.
Set the A SEC/DIV control to 500 us:
v. Disconnect the 50 n cable from the CH 2 input.
u. CHECK-The display amplitude is 4.2 divisions or
greater.
t. Set the A SEC/DIV control to 5 ns.
s. Set the generator output level for a 6 division
display at the 3 MHz reference frequency. then change the
output frequency to 50 MHz. Adjust the CH 1 VERTICAL
POSITION control as required to view the display.
4-14
r. Set the A SEC/DIV control to 200 ns.
q. Select CH 2 COUPLING/INVERT and set 50 n
ON:OFFto ON.
p. Disconnect the 50 n cable from the Calibration Gen-
erator output and connect it to the output of a Leveled
Sine-Wave Generator.
o. CHECK-That the cursor readout indicates 90.00-
110.00 mV. Set 50
n
ON:OFFback to ON.
n. Align the cursors to the displayed waveform as in
parts i and k.
m. Select CH 1 COUPLING/INVERT and set 50
n
ON:OFFto OFF.
I.
CHECK-That the cursor readout (upper right corner
of display) indicates 45.00-55.00 mV.
k. Use the CURSOR/DELAY control to align this cur-
sor to the top of the CH 1 waveform. Take care to use the
same reference points (top edge. bottom edge. or center)
of the waveform and cursor as in part
i.
j. Press CURSOR/SELECT to enable the alternate
cursor.
i. Using the CURSOR/DELAY control. align the mov-
able cursor (segmented) to the bottom of the CH 1
waveform.
h. Use the CH 1 VERTICAL POSITION control to align
the bottom of the displayed waveform to the graticule line
three divisions below graticule center.
g. Select VERTICAL MODE and set CH 2 off.
f. Connect the CH 2 OUT connector (on the rear panel)
to the CH 1 OR X input connector via a 50 12BNC cable.
Do not use a terminator.
e. Use the generator VARIABLE AMPLITUDE control
to adjust the CH 2 display for precisely 5 divisions
amplitude.
Performance Check and Functional Verification Procedure
2430 Service
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