TABLE OF CONTENTS
SECTION I
GENERAL INFORMATION
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Scope And Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
SECTION II
INSTALLATION/OPERATION
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Returns and Exchanges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
General Installation Information . . . . . . . . . . . . . . . . . . . . . 2-1
Power Distribution for Optimum Transmitter Perform-
ance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Overheating from Line Unbalance . . . . . . . . . . . . . . 2-1
Transmitter Noise Performance . . . . . . . . . . . . . . . . 2-1
The Causes of Line Unbalance . . . . . . . . . . . . . . . . . 2-1
Three Phase Delta Distribution Transformers . . . . . 2-2
Three Phase Wye Distribution Transformers . . . . . . 2-2
General Installation
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Equipment Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Pre-Installation Inspection . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Equipment Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Ground Strap Installation . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
RF Output Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Audio Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Airflow Sensor Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Failsafe Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Modulation Monitor Sample . . . . . . . . . . . . . . . . . . . . . . 2-5
Initial Turn On Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Initial Turn On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Modulation Monitor Carrier Level. . . . . . . . . . . . . . . . . . 2-6
Application of Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Remote Meter Calibration . . . . . . . . . . . . . . . . . . . . . . . . 2-7
SECTION III
MAINTENANCE
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Station Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Maintenance Logbook . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Maintenance Of Components . . . . . . . . . . . . . . . . . . . . . . 3-1
Air System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
GATES Series™ Top Removal
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Low Voltage Supply Adjustment . . . . . . . . . . . . . . . . . . . 3-2
High Voltage Supply Adjustment . . . . . . . . . . . . . . . . . . 3-4
RF Drive Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
IPA Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
PA Voltage Electrical Zero . . . . . . . . . . . . . . . . . . . . . . . 3-5
PA Volt Meter Calibration . . . . . . . . . . . . . . . . . . . . . . . . 3-5
PA Current Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Power Supply Current Calibration . . . . . . . . . . . . . . . . . . 3-5
Power Output Calibration . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Overload Adjustment Procedures . . . . . . . . . . . . . . . . . . 3-6
Power Supply Current Overload . . . . . . . . . . . . . . . 3-6
Underdrive Fault. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
VSWR Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Replacing Boards and
Replacing Board Components . . . . . . . . . . . . . . . . . . . . . 3-6
SECTION IV
TROUBLESHOOTING
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Definition of
Front Panel Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Symptom: Transmitter Will Not Turn On - None of
the Green LED’s on the Power Level Switches are Il-
luminated. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Possible Causes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Loss of AC Power . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Control Supply Failure . . . . . . . . . . . . . . . . . . . . . . . 4-1
Symptom: Green Power Level Status LED’s Illumi-
nate, but the Primary Contactors Do Not Energize and
No Overload LED’s Illuminate . . . . . . . . . . . . . . . . . . . . . 4-1
Possible Causes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Phase Monitor (3
∅
FIVE only). . . . . . . . . . . . . . . . 4-1
Blown fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Open Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Failsafe Interlock Open . . . . . . . . . . . . . . . . . . . . . . 4-1
Interface board Output . . . . . . . . . . . . . . . . . . . . . . . 4-1
Open Contactor Circuit . . . . . . . . . . . . . . . . . . . . . . 4-1
Contactor Control Signal . . . . . . . . . . . . . . . . . . . . . 4-1
Symptom: One or Both Primary Contactors Energize,
But There Is No Power Output . . . . . . . . . . . . . . . . . . . . . 4-1
High Voltage Supply Failure. . . . . . . . . . . . . . . . . . . . . . 4-1
Symptom: High Voltage Is Present, But There Is No
Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
PDM Kill Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
PDM Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Possible Causes For Overloads . . . . . . . . . . . . . . . . . . . . . . 4-2
Supply Voltage Overload . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Supply Voltage Too High . . . . . . . . . . . . . . . . . . . . 4-2
Power Supply Current Overloads- At Turn On . . . . . . . 4-2
Supply Short . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Power Supply Current Overloads, Continuous Cycling
and Automatic Cutback . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
PDM System Problem . . . . . . . . . . . . . . . . . . . . . . . 4-2
PDM Generator Outputs High . . . . . . . . . . . . . . . . . 4-2
PDM Amplifier Shorts . . . . . . . . . . . . . . . . . . . . . . . 4-2
Supply Current Calibration . . . . . . . . . . . . . . . . . . . 4-2
Random Supply Current Overloads With Modulation . . 4-2
Sub-audible Signals . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Underdrive Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Low/No Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
IPA and PA Transistors . . . . . . . . . . . . . . . . . . . . . . 4-2
VSWR Overload- Continuous VSWR Cycling . . . . . . . 4-2
Bad Load Impedance . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Antenna Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Output Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
viii
888-2314-001
Rev. X
WARNING: Disconnect primary power prior to servicing.
Содержание Gates Five 994 9204 002
Страница 4: ......
Страница 6: ...iv 888 2314 001 Rev X WARNING Disconnect primary power prior to servicing...
Страница 8: ...vi 888 2314 001 Rev X WARNING Disconnect primary power prior to servicing...
Страница 28: ...2 12 888 2314 001 Rev AC 2 29 00 WARNING Disconnect primary power prior to servicing...
Страница 40: ...Figure 5 1 PDM Flow Diagram 5 2 888 2314 001 Rev T Jan 1996 WARNING Disconnect primary power prior to servicing...
Страница 42: ...Figure 5 2 PDM Loop 5 4 888 2314 001 Rev T Jan 1996 WARNING Disconnect primary power prior to servicing...
Страница 43: ...Figure 5 3 RF Flow Rev T Jan 1996 888 2314 001 5 5 WARNING Disconnect primary power prior to servicing...
Страница 76: ...C 6 888 2314 001 Rev AE 03 05 2002 WARNING Disconnect primary power prior to servicing...
Страница 82: ...E 4 888 2314 001 Rev AE 03 05 2002 WARNING Disconnect primary power prior to servicing...
Страница 88: ...F 6 888 2314 001 Rev AE 03 05 2002 WARNING Disconnect primary power prior to servicing...
Страница 96: ...H 2 888 2314 001 Rev AA 8 18 1999 WARNING Disconnect primary power prior to servicing...
Страница 104: ...K 2 888 2314 001 Rev AE 03 05 2002 WARNING Disconnect primary power prior to servicing...
Страница 105: ...Figure K 1 Interface Board Rev AE 03 05 2002 888 2314 001 K 3 WARNING Disconnect primary power prior to servicing...
Страница 108: ...L 2 888 2314 001 WARNING Disconnect primary power prior to servicing...