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Crown FM100 Manuals
Manuals and User Guides for Crown FM100. We have
1
Crown FM100 manual available for free PDF download: User Manual
Crown FM100 User Manual (111 pages)
Broadcast transmitters
Brand:
Crown
| Category:
Transmitter
| Size: 3.17 MB
Table of Contents
Important Notices
2
Table of Contents
3
Section 1-Getting Acquainted
7
Your Transmitter
8
Applications and Options
9
Stand-Alone
10
Backup
10
Booster
10
Exciter
10
Translator
11
Satellator
12
Nearcasting
12
Transmitter/Exciter Specifications
13
Receiver Specifications
16
Safety Considerations
16
Dangers
16
Warnings
16
Cautions
16
Section 2-Installation
17
Operating Environment
18
Power Connections
18
AC Line Voltage Setting
18
Fuses
20
Battery Power
21
Frequency (Channel) Selection
21
Modulation Compensator
23
Receiver Frequency Selection
24
RF Connections
26
Audio Input Connections
27
SCA Input Connections
28
Composite Input Connection
28
Audio Monitor Connections
29
Pre-Emphasis Selection
29
Program Input Fault Time-Out
30
2.12 Remote I/O Connector
30
Section 3-Operation
33
Initial Power-Up Procedures
34
Power Switches
36
DC Breaker
36
Power Switch
36
Carrier Switch
36
Front Panel Bar-Dot Displays
37
Audio Processor Input
37
Highband and Wideband Display
37
Modulation Display
37
Input Gain Switches
38
Processing Control
38
Stereo-Mono Switch
38
RF Output Control
39
Digital Multimeter
39
Fault Indicators
40
Section 4-Principles of Operation
41
Part Numbering
42
Audio Processor Circuit Board
43
Stereo Generator Circuit Board
44
RF Exciter Circuit Board
46
Metering Circuit Board
48
Motherboard
49
Display Circuit Board
50
Voltage Regulator Circuit Board
51
Power Regulator Circuit Board
52
RF Driver/Amplifier (FM30)
52
RF Driver (FM100/FM250)
53
RF Amplifier (FM100/FM250)
53
Chassis
54
RF Output Filter & Reflectometer
54
Receiver Circuit Board Option
55
Section 5-Adjustments and Tests
57
Audio Processor Adjustments
58
Pre-Emphasis Selection
58
Pre-Emphasis Fine Adjustment
58
Stereo Generator Adjustments
58
Separation
58
Composite Output
58
Using a Modulation Monitor
59
19-Khz Level
60
19-Khz Phase
60
Frequency Synthesizer Adjustments
60
Frequency (Channel) Selection
60
Modulation Compensator
60
Frequency Measurement and Adjustment
60
FSK Balance Control
61
Metering Board Adjustments
61
Power Calibrate
61
Power Set
61
SWR Calibrate
61
PA Current Limit
62
Motherboard Adjustments
62
Display Modulation Calibration
62
Voltage Regulator Adjustments
62
Bias Set (RF Power Amplifier)
63
Performance Verification
63
Audio Proof-Of-Performance Measurements
63
De-Emphasis Input Network
63
Carrier Frequency
64
Output Power
64
RF Bandwidth and RF Harmonics
64
Pilot Frequency
64
Audio Frequency Response
65
Audio Distortion
65
Modulation Percentage
65
FM and AM Noise
65
Stereo Separation
65
Crosstalk
65
Main Channel into Sub
66
Sub Channel into Main
66
38-Khz Subcarrier Suppression
66
Additional Checks
66
Section 6-Reference Drawings
67
Views
68
Board Layouts and Schematics
70
Revision
75
Section 7-Service and Support
96
7.1 Service
97
7.2 24-Hour Support
97
7.3 Spare Parts
97
Crown Broadcast Three Year Limited Product Warranty
98
Factory Service Instructions
100
Transmitter Output Efficiency
101
Glossary
103
Index
108
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