Harris Atlas DVL1100, Техническое руководство

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2/25/03 888-2473-001 3-7
WARNING: Disconnect primary power prior to servicing.
Section 3 Operation
ATLAS Series™
1.
Auto/Manual - This toggle button should always be in the Auto posi-
tion for normal operation. Placing it in Manual mode prevents an
autoswitch to the alternate drive chain or ASI input. In AUTO mode, if
the on-air drive chain drops below 50% of nominal power the controller
will automatically switch to the backup drive chain (if available). Also,
if the ASI input is lost it will automatically switch to the optional sec-
ond ASI input. Manual mode could be used if an exciter or driver has
been removed for service or for any application where an automatic
switch to the alternate drive chain is not desired.
2.
Drive Chain A/B - This is the manual drive chain switch. To use this
button, place the Auto/Manual button to Manual, then press this button
to change the on-air drive chain.
3.
ASI 1/2 - This is the manual ASI stream select button. Pressing this
button will change to the optional second ASI input.
3.5.1 Drive Chain Faults
When the "Drive Faults" button in Figure 3-4 is pressed, it will bring up the screen
shown in Figure 3-5. This screen is basically a fault display for 1 or 2 exciters. For
more information on these faults and what to do if one should occur, refer to the V-
XCAST exciter manual.
Figure 3-5 Drive Chain Faults Screen