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8.4.3.1
Computer Mode.
Select the SP mode.
Although the
unit may be set up in any mode, the SP mode prevents overloads of other
components during setup.
No patch panel need be inserted; however, if
there is one on the computer, it does no harm.
8.4.3.2
Setup Panel Switches.
Open the drawer containing the
setup panel and make sure that all switches are in the OFF position; this
includes the switches marked SETUP, TB, SVO, ON/OFF, IC/OFF, and RATE.
The
switch marked RESET/OPERATE should be in the RESET position. Close the drawer.
8.4.3.3
Selecting the DFG.
Address the DFG to be set on the
signal selector.
Its output should be near zero, since the computer is in
the SP mode.
Now open the drawer containing the DFG (Figure 8.5), and turn
on the SETUP switch near the front of the drawer.
There is one switch for
each pair of ten-segment DFG's.
When the SETUP switch for any DFG is turned
on, the "F" button on the signal selector keyboard will light.
This button
is also lit whenever the AMP BAL switch is in the ON position.
Hence, after
setting up DFG's or balancing DFG amplifiers, the operator has a visual warn-
ing reminding him to turn off the setup panel before proceeding with compu-
tation.
Table 8.1
x
Y
=
f(x)
0.00
0.90
0.20
0.50
0.30
0.36
0.38
0.30
0.44
0.28
0.50
0.28
0.58
0.34
0.80
0.66
0.88
0.72
0.94
0.72
1.00
0.68
8.4.3.4
Checking other DFG's.
The operator should now check
all other DFG's to make sure that their setup switches and their SEGMENT
SELECTOR switches are all in the OFF position.
Only one DFG can be set up
at a time, and if several are turned on at once, they will be interconnected
through the setup panel, making accurate setup impossible.
8-9
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