Broadcast Electronics AM-2.5E, User Manual

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3-6
TABLE 3-2. ECU CONTROLS AND INDICATORS
(Sheet 4 of 6)
INDEX
NO. NOMENCLATURE FUNCTION
9 RESET Switch/ SWITCH - Clears the transmitter fault circuitry
Indicator when: 1) the switch is depressed and 2) if the fault
condition is removed.
INDICATOR - Illuminates to indicate a fault has
been encountered.
10 EXCITER MONITOR Illuminates to indicate the exciter is configured
STEREO Indicator to the stereo mode.
11 EXCITER MONITOR SWITCH - Selects either left/right channel or
MODE Switch/ L-R/L+R information for presentation on the
Indicator EXCITER MONITOR LED bar-graph display.
INDICATOR - Indicates the type of information
selected for display on the exciter monitor. The L/R
indicator will illuminate to indicate the display of
left/right channel information. The L+R/L-R indi-
cator will illuminate to indicate the display of L+R/
L-R information.
12 EXCITER MONITOR SWITCH - Selects either positive or negative peak
+/- POLARITY audio for application to the EXCITER MONITOR
Switch/Indicator LED bar-graph display.
INDICATOR - Indicates the signal polarity selected
for display on the exciter monitor. The + indicator will
illuminate to indicate the display of positive informa-
tion. The - indicator will illuminate to indicate the
display of negative information.
13 EXCITER MONITOR Displays left, right, L+R, or L-R audio channel
LED Bar-Graph Display peak levels as selected by the EXCITER MONITOR
MODE and POLARITY switches. Each indicator
will illuminate at the level indicated on the display.
In addition, the display is equipped with an autorange
feature to allow the monitoring of signals in the 0.5%
to 14.5% range. Indications of autorange operation are
provided by the R/L-R and L/L+R X10 indicators.
14 EXCITER MONITOR Illuminates to indicate the exciter is configured to the
MONO Indicator mono L, mono R, or mono L+R mode of operation.
15 R/L-R Display Illuminates to indicate the autorange feature is
X10 Indicator enabled to expand the R/L-R display by 10 to provide
the resolution required for low level audio monitoring.