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©2011 Broadcast Electronics
Connect the exciter to an appropriate power source with the power cord provided. The following events will
occur.
A. The fan will begin to operate.
B. The +20V, -20V, and +5V status indicators will illuminate. After approximately 5 seconds, the LOCK
status indicator will illuminate.
C. The multimeter WATTS and FWD indicators will illuminate.
D. The multimeter will indicate approximately 5 watts.
Depress the multimeter AFC switch.
A. The multimeter VOLTS and AFC indicators will illuminate.
B. The multimeter will indicate a potential within the range of +2.0 volts to +9.0 volts, dependent upon
carrier frequency. Refer to the final test data sheets for the correct voltage indication.
Depress the multimeter PAV switch.
A. The multimeter VOLTS and PAV indicators will illuminate.
B. The multimeter will indicate a potential within the range of +5.0 volts to +7.0 volts (assuming an RF
output power of 5 Watts).
Depress the multimeter PAI switch.
A. The multimeter AMPS and PAI indicators will illuminate.
B. The multimeter will indicate approximately 1.0 amperes (assuming an RF output power of 5 Watts).
Depress the multimeter FWD switch.
A. Extend the exciter forward on the slide rails to expose the R.F. POWER OUTPUT ADJ. control access hole
in the left side of the top cover.
B. Using an insulated adjustment tool, adjust the exciter output power to the level required by the
transmitter.
WARNING
DISCONNECT EXCITER PRIMARY POWER BEFORE
PROCEEDING.
WARNING
Disconnect ac primary power from the exciter.
Disconnect the RF load and connect the exciter output to the transmitter RF input connector.
LOW-PASS FILTER INSTALLATION.
The FX-50/E can be equipped with an optional low-pass filter to allow the unit to operate as a low power
transmitter. The optional low-pass filter is installed as follows.
Remove the exciter top-panel. Refer to Figure 2-4 and secure the low-pass filter to the inside rear-panel with the
hardware supplied.
Remove the coaxial cable from the RF OUTPUT receptacle and connect to filter input receptacle J1. Connect the
short coaxial cable (supplied) between filter receptacle J2 and the RF OUTPUT receptacle. When installation is
complete, replace the exciter top-panel.
Содержание FX-50
Страница 12: ...x 2011 Broadcast Electronics This page intentionally left blank ...
Страница 20: ...8 2011 Broadcast Electronics Figure 2 1 FX 50 E REAR PANEL CONNECTIONS SHEET 1 OR 2 ...
Страница 21: ...9 2011 Broadcast Electronics Figure 2 1 FX 50 E REAR PANEL CONNECTIONS SHEET 2 OR 2 ...
Страница 32: ...20 2011 Broadcast Electronics Figure 3 1 FX 50 E CONTROLS AND INDICATORS ...
Страница 35: ...23 2011 Broadcast Electronics Figure 4 1 FX 50 E OVERALL SIMPLIFIED SCHEMATIC ...
Страница 40: ...28 2011 Broadcast Electronics Figure 5 1 FX 50 E ASSEMBLY ...
Страница 46: ...34 2011 Broadcast Electronics Figure 6 1 CONTROL CIRCUITRY SIMPLIFIED SCHEMATIC ...
Страница 49: ...37 2011 Broadcast Electronics Figure 6 2 POWER SUPPLY SIMPLIFIED SCHEMATIC DIAGRAM ...
Страница 53: ...41 2011 Broadcast Electronics Figure 6 4 PARALLEL LOAD CONNECTION ...
Страница 56: ...44 2011 Broadcast Electronics Figure 6 5 NO PA VOLTAGE TO THE RF AMPLIFIER ...
Страница 58: ...46 2011 Broadcast Electronics Figure 7 1 METERING CIRCUIT REMOVAL AND INSTALLATION DIAGRAM ...
Страница 60: ...48 2011 Broadcast Electronics Figure 7 2 METTERING BOARD SIMPLIFIED SCHEMATIC ...
Страница 68: ...56 2011 Broadcast Electronics Figure 8 1 MODULATED OSCILLATOR SIMPLIFIED SCHEMATIC DIAGRAM ...
Страница 74: ...62 2011 Broadcast Electronics Figure 9 1 AFC PLL CIRCUIT BOARD SIMPLIFIED SCHEMATIC ...
Страница 81: ...69 2011 Broadcast Electronics Table 9 2 FREQUENCY SYNTHESIZER PROGRAMMING ...
Страница 84: ...72 2011 Broadcast Electronics Figure 9 4 NO RF OUTPUT LOCK IS EXTINGUISHED ...
Страница 85: ...73 2011 Broadcast Electronics Figure 9 5 NO MODULATION LOCK INDICATOR ILLUMINATED ...
Страница 89: ...77 2011 Broadcast Electronics Figure 10 1 RF AMPLIFIER SIMPLIFIED SCHEMATIC ...
Страница 92: ...80 2011 Broadcast Electronics Figure 10 2 RF AMPLIFIER CIRCUIT BOARD CONTROLS ...
Страница 95: ...83 2011 Broadcast Electronics Figure 10 3 RF AMPLIFIER TROUBLESHOOTING INFORMATION ...
Страница 100: ...88 2011 Broadcast Electronics Figure 11 1 SLAVE FM BOOSTER SIMPLIIFED SCHEMATIC ...
Страница 101: ...89 2011 Broadcast Electronics Figure 11 2 MASTER FM BOOSTER SIMPLIFIED SCHEMATIC ...
Страница 161: ...149 2011 Broadcast Electronics Figure 14 1 OPTIONAL LOW PASS FILTER ASSEMBLY ...
Страница 162: ...150 2011 Broadcast Electronics Figure 14 2 EXCITER FRONT RAIL MOUNTING APPLICATIONS ...
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