11. Loop and dress the excess cable length neatly near the edge of
the circuit board and secure them to the chassis with cable ties.
12. Replace the top and bottom covers.
13. Test the new configuration by connecting A output to A input
and B output to B input with external cables which do not have
a polarity inversion (conductors transposed) between the two
ends. Select LEVEL function with PHASE displayed in the
upper right display. With both generator outputs on and a 1 kHz
1 volt signal, the measured voltages should agree within the
instrument specification and the phase should read nearly zero
degrees for all four possible input configuration selections; A-B,
A-G, B-1, and B-G.
Swapping Speaker and Connector Panels
The ATS-1 is normally shipped with the Monitor loudspeaker installed
on the rear panel and the input/output connector panel installed on the
front. You may desire, especially in rackmounted production test
systems, to have the input/output connectors at the rear. To
interchange the loudspeaker and connector panels, perform the
following steps:
1. Remove the top and bottom covers as described earlier in this
section.
2. Clip the cable ties securing the cables from the connector panel to
the chassis.
3. Locate the two cables from the Analyzer Input connectors on the
panel to the Analyzer circuit board on the top side of the chassis.
Observe that each cable connects to the board connector
nearest its panel connector. Disconnect these cables from the
circuit board.
4. Locate the two cables from the Generator Output connectors on
the panel to the Generator circuit board on the bottom side of
the chassis. Observe that each cable connects to the board
connector nearest its panel connector. Disconnect these cables
from the circuit board.
C Internal Changes
Swapping Speaker and Connector Panels Appendix C - Performing Internal Changes
ATS-1 Dual Domain User's Manual C-3
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