Performance Check Procedure-2225 Service
h. CHECK-That the display can be untriggered at
either extreme or rotation of the Trigger LEVEL
control.
i.
Set the Trigger SOURCE switch to EXTl10.
j.
CHECK-That the display can be triggered
about the midrange of the Trigger LEVEL control.
k.
Set the Trigger SLOPE switch to negative
(I)
and repeat Part
j.
I.
Disconnect the test equipment from the instru-
ment.
4.
Check Single Sweep Operation
a. SET:
CH
1
VOLTSIDIV 10 mV
SECIDIV 0.5 ms
Trigger SOURCE CH
1
Trigger COUPLING AC
Trigger SLOPE Positive
(s)
b. Connect 50-mV, standard-amplitude signal
from the calibration generator via a
504 BNC coaxial
cable to the CH
1
OR
X
input connector.
c. Adjust the Trigger LEVEL control to obtain a
stable display.
d. SET:
CH
1
AC-GND-DC GND
Trigger MODE SGL SWP
e. Press the SGL SWP RESET button. The READY
light should light up and remain on.
f. Set the CH
1
AC-GND-DC switch to DC.
NOTE
The INTENSITY control may require adjustment
to observe the single-sweep trace.
g. CHECK-READY light goes out and a single
sweep occurs.
h. Press the SGL SWP RESET button several
times.
i.
CHECK-A single-sweep trace occurs, and the
READY light comes on briefly every time the SGL SWP
RESET button is pressed.
j.
Disconnect the test equipment from the instru-
ment.
REV
APR
1990
Scans
by
ARTEK
MEDL.4
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