Appendix
C:
Performance Verification
A EXT COUPL
Storage
STOREINON-STORE
NON-STORE
(button out)
Procedure Steps:
Step 1
:
Check External 2-Axis Operation
a. Connect the leveled sine wave generator output via a 50
Q
cable
and a T-connector to the
CH
1
OR
X
input connector. Then connect
a 50
0
cable and a 50
Q
termination from the T-connector to the EXT
Z-AXIS INPUT connector on the rear panel.
b. Set the generator to produce a 5 V, 50 kHz signal.
c. CHECK
-
For noticeable intensity modulation. The positive part of
the sine wave should be of lower intensity than the negative part.
d. Disconnect the test equipment from the instrument.
Step
2:
Check Probe Adjust Operation
a. Set:
CH
1
VOLTSIDIV
A SECIDIV
10 mV
0.2
rns
b. Connect the 1 OX Probe to the
CH
1
OR
X
input connector and insert
the probe tip into the
PRB ADJ
(Probe Adjust) jack on the instru-
ment front panel. If necessary, adjust the probe compensation for a
flat-topped square-wave display.
c. CHECK
-
Display amplitude is 4.75 to 5.25 divisions.
d. Disconnect the probe from the instrument.
Step
3:
Check External Clock
a. Set:
CH 1 VOLTSIDIV
A
SECIDIV
b. Connect the Pulse Generator high amplitude output via a 50
Q
cable
and a 50
Q
termination to
CH
1
OR
X input connector.
c. Set the generator to produce a 10
ps square wave, with a pulse
duration of 5
ps. Set the amplitude for a five division display, with
a
base (bottom) of 0 volts and a top of 5 volts
(TTL
levels).
d. Disconnect the cable from the
CH
1
OR
X
input connector and
connect it to the BNC male-to-tip plug via BNC female to BNC
female connector.
e. Insert the BNC male-to-tip plug signal lead and ground lead into pin
1
(EXT
CLOCK)
and pin
6
(SIG GND)
respectively of the X-Y Plotter
connector.
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