81
©2011 Broadcast Electronics
WARNING
DISCONNECT THE PRIMARY POWER TO THE EXCITER
BEFORE PROCEEDING.
WARNING
A. Disconnect the exciter primary power.
B. Refer to the REMOVAL PROCEDURE in SECTION II, REMOVAL AND INSTALLATION and remove the RF
amplifier assembly from the exciter chassis.
C. Refer to Figure 10-2 and remove the 10 screws securing the RF amplifier assembly to the mounting
bracket/shield.
D. Refer to Figure 10-2 and position the RF amplifier assembly in the chassis as shown.
E. Refer to Figure 10-2 and connect J15 to P15 of the RF amplifier assembly power/ control cable.
F. Refer to Figure 10-2 and connect P18 to J18 on the rear of the RF amplifier assembly.
G. Connect a 100 watt non-inductive test load to the exciter rear-panel RF OUTPUT receptacle.
H. Apply primary power to the exciter and record the forward power meter indication
WARNING
MAINTENANCE WITH POWER APPLIED IS ALWAYS
CONSDIERED HAZARDOUS AND THEREFORE CUATION
SHOULD BE OBSERVED. DO NOT TOUCH ANY
COMPONENTS WITHIN THE EXCITER WHEN POWER IS
APPLIED.
WARNING
WARNING
USE AN INSULATED TOOL FOR ADJUSTMENT.
WARNING
I. Remove RF drive by disconnecting P17 from the RF amplifier.
J. Refer to Figure 10-2 and adjust PWR SET control R52 on the power supply/control circuit board fully
clockwise.
K. Depress front-panel PAI meter function switch.
L. Refer to Figure 10-2 and adjust R17 for 300 milliamps (0.30) as indicated on the front-panel meter.
M. Refer to Figure 10-2 and connect P17 to the RF amplifier.
N. Refer to Figure 10-2, adjust PWR SET control R52 until the meter indicates the value recorded in step H.
WARNING
DISCONNECT THE PRIMARY POWER TO THE EXCITER
BEFORE PROCEEDING.
WARNING
O. Disconnect primary power to the exciter.
P. Remove all test equipment and replace the RF amplifier assembly mounting bracket/shield.
Q. Refer to the INSTALLATION PROCEDURE in SECTION II, REMOVAL AND INSTALLATION and install the RF
amplifier assembly in the exciter chassis.
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 ...
Страница 163: ......
Страница 164: ......
Страница 165: ......
Страница 166: ......
Страница 167: ......
Страница 168: ......
Страница 169: ......
Страница 170: ......
Страница 171: ......
Страница 172: ......
Страница 173: ......
Страница 174: ......
Страница 175: ......
Страница 176: ......
Страница 177: ......
Страница 178: ......
Страница 179: ......
Страница 180: ......
Страница 181: ......
Страница 182: ......
Страница 183: ......
Страница 184: ......
Страница 185: ......
Страница 186: ......
Страница 187: ......
Страница 188: ......
Страница 189: ......