REV DEC 1986
i. CHECK-That the Cursor Readout indicates a volt-
age ~ 450 mV.
h. Use the CURSOR/DELAY control to align the Volt-
age cursor to the top flat portion of the CH 1 waveform.
g. Select CURSOR UNITS and set A:ABS to ABS.
f. Select CURSORS FUNCTION and set VOLTS on.
e. CHECK-That both of the waveforms are displayed
with their falling edges aligned to the Trigger Point Indica-
tor (a small "T" riding on each waveform).
d. Using the CH 1 and CH 2 VERTICAL POSITION
controls, position the CH 1 waveform to the top half of the
screen and the CH 2 waveform to the bottom half for easy
viewing.
c. Connect the TRIGGER OUTPUT (rear panel) to the
CH 2 input connector via a 50
n
cable.
b. Connect the RECORD TRIGGER OUTPUT (rear
panel) to the CH 1 input connector via a 50
n
cable and a
50
n
terminator.
Select TRIGGER SOURCE
Set: LINE On
CH 1 VOLTS/DIV
CH 2 VOLTS/DIV
200 mV
200 mV
Set:
6. Check A TRIGGER and RECORDTRIGGER
Outputs for Logic Polarity and Minimum HI/LO
(50 n loads).
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:
af. Disconnect the test setup.
ae. VERIFY-That the controller display indicates that
the OSCilloscopeVERTICAL MODE setting is CH 1 on,
CH 2 on, and ADD on.
ad. Enter the command VMOde? to the controller.
4-30
ac. VERIFY-That the CH 2 trace is displayed 2 divi-
sions below the center graticule line with an intensified
zone 2 divisions right of center screen.
abo VERIFY-That the CH 1 trace is displayed 2 divi-
sions above the center graticule line, with an intensified
zone 1 division right of center screen.
aa. Press the MENU OFF/EXTENDED FUNCTIONS
button.
z. Select BEAMFIND. VERIFY-That front panel
STATUS readout indicates the control setting changes
sent over the controller in part I have been performed.
y. Enter the command RTL to the controller.
VERIFY- That the LOCK light is extinguished.
1. VMOde ADD:ON
2. CH1 VOlts: 1E-1,VARiable:50,POSition:2,
COUpling:GND,FIFty:OFF, INVert:ON
3. CH2 VOlts: 1E-1,VARiable:50,POSit-2,
COUpling:GND,FIFty:OFF, INVert:ON
4. BWLimit TWEnty
5. HORizontal ASEC:1E-3,BSEC:1E-4
6. DLTime DELta:ON,DLY1:1E-3,DLY2:1E-3
x. Enter the following commands on the controller:
w. Enter the command LLO. VERIFY-That the LOCK
light is illuminated.
v. VERIFY-That the GPIB STATUS SRQ light is no
longer illuminated.
u. Enter a carriage return at the controller.
t.
VERIFY-The GPIB STATUS SRQ light is still
illuminated when the power-up sequence is finished.
s. VERIFY-That all three GPIB STATUS lights
illuminate during the power-up sequence.
r. Press the instrument POWER button twice to power
the instrument OFF and then ON.
Performance Check and Functional Verification Procedure
2430 Service
q. Enter the command RQS ON.
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