Broadcast Electronics AM-2.5E, Руководство пользователя

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FIGURE 2-14. TEST EQUIPMENT CONNECTIONS, SEPARATION
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1999 BROADCAST ELECTRONICS, INC
2-141. Operate the oscilloscope for: 1) 200 mV/div sensitivity and 2) dc coupled.
2-142. Refer to Figure 2-8 and connect an audio generator to the audio input terminals.
2-143. Operate the transmitter rear-door ac on/off control switch to ON.
2-144. Select the antenna which is configured for equalization circuit 1 operation (refer to STE
REO CIRCUIT BOARD PROGRAMMING in the preceding text if required) and determine
a power level.
2-145. Depress the desired power level switch/indicator to illuminate the switch/indicator.
2-146. Refer to SECTION III, OPERATION and perform the following:
1. Operate the stereo circuit board mode control switch to illuminate the stereo
indicator. When power is applied to the transmitter, the stereo circuit board will
automatically be configured to the stereo mode.
2. Operate the stereo circuit board pilot switch to off.
3. Ensure the equalization circuit 1 indicator on the stereo circuit board is
illuminated.
2-147. Adjust equalization circuit 1 as follows:
1. Adjust the audio generator for a 1 KHz left channel output at +10 dBm and
observe the lissajous pattern displayed on the oscilloscope.