The
p lug-in Controls
w ill be set
to:
VOLTS/CM (A and B)
.05
MODE
B ONLY
Adjust the Type 190 Constant Amplitude
Signal Generator to obtain an output frequency
o f 50 kc. Attach the Type 190 to the B channel
vertical input connector installing the 5XT
between the 190 attenuator box and the plug-
in. Adjust the Output Amplitude control on the
Type 190 to obtain exactly 3 cm of vertical
deflection on the crt. Adjust the Type 190
fo r an output frequency of 24 mc making sure
not to move the Output Amplitude control.
There should now be at least 2.1 cm of vertical
deflection remaining.
Turn the MODE switch to A O N LY and
connect the Type 190 to the B channel vertical
input connector. Make sure not to disturb the
control settings of the Type 190 when making
this transfer. The A channel should also have
at least 2.1 cm of vertical deflection.
16. High Frequency Rejection Check
Remove the Type 190 and the 5XT from the
A channel vertical input connector. Install the
Dual Input Connector on the Type CA Unit
and then reinstall the 5XT and the Type 190
on its connector.
Adjust the Type 190 to obtain an output fr e
quency of 50 kc and an output amplitude of one
volt, as read on the m eter of the Type 190.
Now without changing the output amplitude of the
Type 190, increase the frequency of the Type
190 to 24 mc.
Turn the MODE switch to ADDED ALGEBRAI-
C A L L Y and switch the P O LA R IT Y switch of
A channel to INVERTED. With the waveform
positioned to the vertical System electrical
center a cancellation of the Signal, within 1 cm,
should occur. If the cancellation just described
doesn’t take place try returning the A channel
P O L A R IT Y switch to NORMAL and changing
the B channel PO LA R IT Y switch to INVERTED.
The plug-in is satisfactory if either condition
w ill permit proper cancellation of the Signal.
Now position both the AC-DC switches to
AC and check to see that you have cancel
lation of the Signal within one centimeter.
L3372
L4354
L4362
Channel B VOLTS/CM
Compensations. See Step 13.
L3362
Channel A VOLTS/CM
Compensations. See Step 13.
F ig . 5-4. L e ft sid e vie w o f Typ e C A Unit showing location o f adjustments.
A A
1
5-6
Calibration - Type CA
Содержание CA PLUG-IN
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