4-25
g. CHECK-That the Cursor Time Readout indicates
2.9700 to 3.0300 ms.
f. Set the HORIZONTAL MODE to B.
e. CHECK-That the Cursor Time Readout indicates
2.9700 to 3.0300 ms.
d. Use the CURSOR/DELAY control to align cursor to
the third graticule line to the right of center screen.
c. Press CURSOR SELECT to enable the alternate
cursor.
b. Use the CURSOR/DELAY control to align the mov-
able cursor (it will have more dots than the alternate cur-
sor) to the third graticule line to the left of center screen.
On
Select CURSOR FUNCTION
Set: TIME
1 V
2V
CH 1 VOLTS/DIV
CH
2
VOLTS/DIV
Set:
4. Check A and B Time Base Cursor Readout
Accuracies
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:
s. Disconnect test setup.
r. VERIFY-That the rising edge of the displayed time
marker can be aligned to the Trigger Point Indicator,
approximately 3 divisions right of center screen.
Performance Check and Functional Verification Procedure
2430 Service
q. Set the HORIZONTAL MODE to B.
p. VERIFY-That the falling edge of the A Trigger sig-
nal displayed in CH 2 is 3 divisions left of center screen.
o. Select DELAY EVENTS and set EVENTS ON:OFF
to ON. Use the CURSOR/DELAY control to set the
EVENTS COUNT to 60001 B TRIGS.
n. Set the HORIZONTAL MODE to A.
m. Use the HORIZONTAL POSITION control to align
the Trigger Point Indicators to the graticule line 3 divisions
right of center screen.
I.
Set the HORIZONTAL MODE to B and set the B
SEC/DIV control to 50
!J.s.
k. Set the Leveled Sine-Wave Generator amplitude to
3 volts and its frequency to
2
MHz.
j.
Connect the output of a Leveled Sine-Wave Genera-
tor to the EXT TRIG 1 input via a 50 Q BNC cable and a
50 Q terminator.
i. Select TRIGGER SOURCE and set EXT 1:2 to 1.
Press the A/B TRIG button to return to the A Trigger
System.
h. Press the A/B TRIG button to select the B Trigger
System.
g. Select EXT TRIG GAIN and set EXT1
-i-
5 on.
f. Use the VERTICAL POSITION controls to position
the CH 1 and CH 2 displays for easy viewing.
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