Figure 3A-2. Switchboard/Meter Panel
Controls and Indicators
REF. CONTROL/INDICATOR FUNCTION
1 VOLTAGE multimeter Indicates voltages at points selected by the Multimeter Switch (Ref. 11).
2 SUPPLY CURRENT meter Indicates the 230V supply current being supplied to the Power Amplifier.
3 POWER meter Indicates either FORWARD or REFLECTED power at the transmitter output, whichever is
selected by the POWER METER selector switch (Ref. 4).
4 POWER, selector Selects Forward power output or Reflected power, to be read on the POWER meter.
5 OFF, pushbutton Used to turn the transmitter off. (Low voltage supplies remain on as long as AC primary
power is applied).
6 LOWER, pushbutton Used to adjust power level. When the transmitter is in the LOW, MEDIUM, or HIGH
power mode, depress to LOWER power output and hold until desired power is reached. IN-
DICATOR illuminates while power is being lowered.
7 RAISE, pushbutton Used to adjust power level. When the transmitter is in the LOW, MEDIUM, or HIGH
power mode, depress to RAISE power output and hold until desired power is reached. IN-
DICATOR illuminates while power is being raised.
8 HIGH, pushbutton Used to turn the transmitter on at the preset HIGH power level, or to change power to the
preset HIGH power level. INDICATOR: The pushbutton will illuminate when in the HIGH
power mode.
9 MEDIUM, pushbutton Used to turn the transmitter on at the preset MEDIUM power level, or to change power to
the preset MEDIUM power level. INDICATOR: The pushbutton will illuminate when in
the MEDIUM power mode.
10 LOW, pushbutton Used to turn the transmitter on at the preset LOW power level, or to change power to the
preset LOW power level. The pushbutton will illuminate when in the LOW power mode.
11 MULTIMETER switch Selects the desired point to be monitored by the VOLTAGE multimeter.
Table 3A-2. Switchboard/Meter Panel
Controls and Indicators
DX-25U
3A-2 888-2297-002 Rev AA: 8/9/2000
WARNING: Disconnect primary power prior to servicing.
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