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Manuel d’utilisation Crown FM1000A

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  • Crown FM1000A - page 1

    i FM1000A RF Amplifier Package User's Manual ©200 5 Crown Broadcast, a division of International Radio and Electronics, Inc. 25166 Leer Drive, Elkhart, Indiana, 46514-5425 U.S.A. (574) 262-8900 ® ...

  • Crown FM1000A - page 2

    ii Revision Control Revision Print Date Initial Release (Rev . 0) 900413-1 November 1998 Revision 1 April 2002 Important Notices ©200 5 , Crown Broadcast, a division of International Radio and Electronics, Inc. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated ...

  • Crown FM1000A - page 3

    iii Contents Contents Contents Contents Contents Section 1—Getting Acquainted 1.1 Y our Amplifier Package ....................................................................................... 1–2 1.2 Amplifier Package Specifications ......................................................................... 1–3 1.3 Safety Considerations ..... ...

  • Crown FM1000A - page 4

    iv 4.2 PS1000 Power Supply ...................................................................................... 4–4 4.2.1 AC Input Board ............................................................................................. 4–5 4.2.2 PFC (Power Factor Correcting) Switching Board .......................................... 4–5 4.2.3 DC ...

  • Crown FM1000A - page 5

    Getting Acquainted 1–1 I INFORMATION Section 1—Getting Acquainted This section provides a general description of the FM1000A power amplifier system and introduces you to safety conventions used within this document. Review this material before install- ing or operating the amplifier and power supply. ...

  • Crown FM1000A - page 6

    FM1000A User’ s Manual I 1–2 1.1 Y our Amplifier Package The FM1000A is a highly efficient amplifier package designed to set a new standard in FM transmitter design offering modularity, ease of use, and long-term reliabil- ity. The FM1000A package includes a PA1000 amplifier, PS1000 power supply, and an FM1K accessory pack. The PA1000 broadband ...

  • Crown FM1000A - page 7

    Getting Acquainted 1–3 1.2 Amplifier Package Specifications RF Power Output : 100 to 1100 watts continuous with remote controlled power adjust RF Drive Requirement : 30 watts for full output RF Output Impedance: 50 ohms (unbalanced) Maximum SWR: 1.7:1 (With power foldback at high SWR) Frequency Range : 87–108 MHz RF Harmonics/Spurious Products: ...

  • Crown FM1000A - page 8

    FM1000A User’ s Manual I 1–4 1.3 Safety Considerations Crown Broadcast assumes the responsibility for providing you a safe product and safety guidelines during its use. “Safety” means protection to all individuals who install, operate, and service the transmitter as well as protection of the transmitter itself. To promote safety, we use sta ...

  • Crown FM1000A - page 9

    2–1 Installation Section 2—Installation This section provides important guidelines for installing your power amplifier and power supply . Review this information care- fully for proper installation. ® ...

  • Crown FM1000A - page 10

    2–2 FM1000A User’ s Manual 2.1 Operating Environment You can install the FM1000A amplifier system in a standard 19–inch component rack or on a suitable surface such as a bench or desk. In any case, the area should be as clean and well-ventillated as possible. The power supply must be installed directly above or below the power amplifier (for ...

  • Crown FM1000A - page 11

    2–3 Installation 2.4 Preinstallation 2.4.1 Power Amplifier Modules The PA1000 incorporates four power amplifiers (two each in two modules). Due to possible damage during shipment, the power modules have been removed. Follow these steps to install the modules: 1. Remove the front panel of the PA1000 (four screws). 2. Taking ESD precautions (see pa ...

  • Crown FM1000A - page 12

    2–4 FM1000A User’ s Manual W ARNING 2.4.2 Hubble T wist Lock® Connector Wiring Prepare the wiring for the Hubble Twist-Lock® connector in the following manner before connecting to your AC power source: 1. Use round cord with a diameter of 0.385–0.780 inches (10–20 mm), Type SJ 12/3 – 10/3; Type S 16/3 – 10/3. 2. Select conductor size ...

  • Crown FM1000A - page 13

    2–5 Installation 2.5 Installation 1. Mount the units in an appropriate 19–inch wide cabinet. The power supply must be installed directly below the power amplifier for the included cables to reach their respective connectors (see illustration 2–4 below). Note: The PS1000 weighs approximately 40 pounds (18.1 kg); the PA1000, approximately 43 po ...

  • Crown FM1000A - page 14

    2–6 FM1000A User’ s Manual 2.6 Remote I/O Connection LOCAL MAXIMUM +5V LOCAL POWER ADJUST MINIMUM REMOTE T ANSMITTER CONTROL SW3 RAISE SW4 LOWER SW5 R62 Electro- Control Circuit REMOTE RAISE POWER Pin 4 Remote I/O Conn. REMOTE LOWER POWER Pin 15 Remote I/O Conn. Illustration 2–5 Local and Remote Functions The Remote I/O Connector on the back ...

  • Crown FM1000A - page 15

    2–7 Installation For remote I/O (Input/Output) connection, connect your remote I/O cable from your remote control location to the 25–pin (female) D-sub connector on the back panel of the PA1000. The I/O Connector on the power amplifier is described in the following diagram: The Remote I/O Connector Pinout Table on the next page summarizes the R ...

  • Crown FM1000A - page 16

    2–8 FM1000A User’ s Manual Remote I/O Connector Pinout T able Pin # Function 1 P A#8 Current Monitor (a buff ered metering output with 1 V = 2 A) 2 P A#7 Current Monitor (a buff ered metering output with 1 V = 2 A) 3 Ground 4 Remote RAISE P ower (a momentary s witch, on this pin, when held low will raise the po wer le vel 10 w atts e very 0.5 s ...

  • Crown FM1000A - page 17

    3–1 Operation Section 3—Operation This section provides general operating parameters of your power amplifier system and a detailed description of the front panel display . ...

  • Crown FM1000A - page 18

    3–2 FM1000A User’ s Manual These steps summarize the operating procedures you should use for the initial operation of the power amplifier and power supply. More detailed information follows. 1. Ensure that the external remote control unit is properly connected (See the Pin Out Description Table, Section 2.6, page 2–8 for proper pin configura- ...

  • Crown FM1000A - page 19

    3–3 Operation Illustration 3–3 PS1000 Front Panel Functions 8. Check the PA1000 parameters with the Digital Multimeter for a current (Tot Current) of 20 to 30 amps and a voltage (PA Voltage) of 25 to 35 volts. If parameters are within range, increase the Local Power Adjust to the maxi- 6. Before power-up, place the Local/Remote switch (located ...

  • Crown FM1000A - page 20

    3–4 FM1000A User’ s Manual 3.2.1 AC Input Circuit Breaker The PS1000 supplies power to the PA1000 by converting single-phase 220/240 VAC into 50 VDC. The PS1000 is protected by a 20 A, double-pole circuit breaker located on the rear panel. This AC input circuit breaker must be in the “up” position (as shown below) for operation. 3.2 Power S ...

  • Crown FM1000A - page 21

    3–5 Operation 3.2.2 DC Power Switch The main on/off power switch located on the front panel of the power supply controls high voltage output. (The control circuit activates this voltage.) Illustration 3–5 DC Power Switch Illustration 3–6 Interlock Switch Interlock Switch ® Power I O P ower Switch W W ARNING ARNING Lethal voltages are still p ...

  • Crown FM1000A - page 22

    3–6 FM1000A User’ s Manual 3.3 Digital Multimeter Illustration 3–7 Digital Multimeter The 3–digit numeric display in the upper left corner of the front panel provides information on the amplifier’s operation. Use the “up” and “down” push-buttons to select one of the following parameters as indicated by a green LED. In Ref —Input ...

  • Crown FM1000A - page 23

    3–7 Operation 3.4 Fault Indicators Illustration 3–8 Fault Indicators CAUTION Possible equipment damage! Do not exceed 40 watts of input drive. Damage to the PA1000 will result if this level is exceeded. Faults are indicated by illuminated red LED’s when the following occurs: Antenna —Load SWR exceeds 1.5:1. ALC voltage is reduced to limit t ...

  • Crown FM1000A - page 24

    3–8 FM1000A User’ s Manual 3.5 Fuse Indicators Illustration 3–9 Fuse Indicators The PA1000 consists of two field-replacable power modules with two amplifiers in each module. Each of the paralleled amplifiers is protected by a 10 ampere fast-acting fuse. When a fuse opens, the indicator light next to it illuminates. Fuses 3 and 4 represent amp ...

  • Crown FM1000A - page 25

    4–1 Principles of Operation i n q u e s t o m o n do, e r o n o d u e p e r s o n e c h e a b b i a n o f o r s e , u n o s i d i ce c h e n o n h a l a d i s p o z i o n e d o f a r l o . M s e d i c i a m o c h e c h e n o n c ' e n u l l a n e l m o n d o r e a l e d i m a s c r i v e n d o c on l a m a t i t a c i i n s e g n a a n o n p ...

  • Crown FM1000A - page 26

    i n q u e s t o m o n d o , f o r s e , u n o s i d i c e s e d i c i a m o c h e m a s c r i v e n d o c o n i n q u e s t o m o n d o , f o r s e , u n o s i d i c e s e d i c i a m o c h e m a s c r i v e n d o c o n m a s c r i v e n d o c o n i n q u e s t o m o n d o , f o r s e , u n o s i d i c e s e d i c i a m o c h e m a s c r i v e n d ...

  • Crown FM1000A - page 27

    4–3 Principles of Operation 4.1.3 Backplane Assembly The backplane assembly is located in the vertical center of the PA1000 behind the power modules. The Backplane Assembly is the common connection point for the major sections of the transmitter. This assembly consists of the Input Divider Board, Output Combiner Board, and Backplane Interconnect ...

  • Crown FM1000A - page 28

    i n q u e s t o m o n d o , f o r s e , u n o s i d i c e s e d i c i a m o c h e m a s c r i v e n d o c o n i n q u e s t o m o n d o , f o r s e , u n o s i d i c e s e d i c i a m o c h e m a s c r i v e n d o c o n m a s c r i v e n d o c o n i n q u e s t o m o n d o , f o r s e , u n o s i d i c e s e d i c i a m o c h e m a s c r i v e n d ...

  • Crown FM1000A - page 29

    4–5 Principles of Operation 4.2.1 AC I nput Board The AC Input Board is located on the left side of the PS1000. AC power from the circuit breaker connects to the AC Input Board where it connects to a ±12 volt DC power supply and three relays. The ±12 volts is used to close the three relays when the DC Power Switch on the front panel is switched ...

  • Crown FM1000A - page 30

    i n q u e s t o m o n d o , f o r s e , u n o s i d i c e s e d i c i a m o c h e m a s c r i v e n d o c o n i n q u e s t o m o n d o , f o r s e , u n o s i d i c e s e d i c i a m o c h e m a s c r i v e n d o c o n m a s c r i v e n d o c o n i n q u e s t o m o n d o , f o r s e , u n o s i d i c e s e d i c i a m o c h e m a s c r i v e n d ...

  • Crown FM1000A - page 31

    5–1 T roubleshooting TROUBLE TROUBLE TROUBLE Section 5—T roubleshooting This section describes procedures for service personnel to diag- nose and troubleshoot potential fault conditions in the power amplifier and power supply . ...

  • Crown FM1000A - page 32

    TROUBLE TROUBLE TROUBLE 5–2 FM1000A User’ s Manual 5.1 T roubleshooting Flow Chart Analysis Does y our amplif ier have output power? Yes No Is pow er output at the proper level? Yes No See S ect ion 3.1 Ini t ial Pow er-up procedures. Do you have power now ? Yes No Is y our e xcite r turned on? Secu re al l con nec tions to the PS 2000. Ensu re ...

  • Crown FM1000A - page 33

    5–3 T roubleshooting W W ARNING ARNING 5.2 Digital Multimeter Parameters The following procedures are general in nature; for in-depth service, and repair see the Service & Support section of this manual. Lethal voltages present! Only technically qualified individuals shoud attempt troubleshooting or service procedures . If any abnormal readin ...

  • Crown FM1000A - page 34

    TROUBLE TROUBLE TROUBLE 5–4 FM1000A User’ s Manual 5.2.5 P A T em p The meter should read between 35–50°C with an ambient temperature of 25°C. If temperature is 75°C or above, then check and do the following: ❑ Ambient temperature higher than 50°C; reduce temperature. ❑ Restricted air flow; remove any obstructions, clean dirty air fil ...

  • Crown FM1000A - page 35

    5–5 T roubleshooting If one of the LED fault indicators is illuminated red, troubleshoot using the follow- ing suggestions: 5.3 Fault Indicators 5.3.1 Antenna Antenna mismatch. ❑ Effects from inclement weather conditions such as icing. ❑ Check for moisture in the feedline. ❑ Secure antenna connections. 5.3.2 RF Drive Denotes lack of or insu ...

  • Crown FM1000A - page 36

    TROUBLE TROUBLE TROUBLE 5–6 FM1000A User’ s Manual 5.3.5 Multiple Indicators Call your Crown Broadcast service representative. See Section 7, Service and Support, for contact information. a. The circuit breaker is located on the rear panel of the power supply. If the breaker has popped out, reset it by pushing it in. If the breaker continues to ...

  • Crown FM1000A - page 37

    6–1 Reference Drawings Section 6—Reference Drawings The illustrations in this section may be useful for making adjustments, taking measurements, troubleshooting, or understanding the circuitry of your RF power amplifier and power supply . ...

  • Crown FM1000A - page 38

    6–2 FM1000A User’ s Manual Illustration 6–1 Front View 240 V A C IN RF Input Remote I/O Control RF Monitor (Optional Connection) RF Output Circuit Breakers + DC Input DC Input + DC Output DC Output PS1000 P A1000 Air Intakes/Filters Ground Screws Fans Power Control Air Exhaust V ents OFF OFF Illustration 6–2 Back View 6.1 Views Fault Antenn ...

  • Crown FM1000A - page 39

    6–3 Reference Drawings Illustration 6–3 FM1000A Block Diagram 30 W Exciter (Crown FM30) P A1000 Power Amplifier 1 kW RF Power Output Remote I/O Connector Power Supply Control 0–50 VDC P A Supply PS1000 Power Supply RF Input Excitation 240 V AC 50/60 Hz Input Power Single Phase 6.2 Diagrams and Schematics ...

  • Crown FM1000A - page 40

    6–4 FM1000A User’ s Manual Illustration 6–4 PS1000 Block Diagram 240 V A C AC CIRCUIT BREAKER AC INPUT NEUTRAL GROUND AC INPUT CCA POWER SWITCH RECTIFIER PFC & CONTROL CCA DC OUTPUT CCA + 0 to 50 VDC RETURN PS CONTROL 9-PIN DSUB 220 VDC +/ 12 VDC VOLT AG E BOOST INDUCTOR 360 VDC 360 VDC CONTROL ...

  • Crown FM1000A - page 41

    6–8 FM1000A User’ s Manual Illustration 6–5 P A1000 Block Diagram ...

  • Crown FM1000A - page 42

    6–13 Reference Drawings Backplane Distribution Note: All bypass capacitors are 0.01 mf ...

  • Crown FM1000A - page 43

    6–14 FM1000A User's Manual Ribbon Cables and Connectors Ribbon Cables and Connectors ...

  • Crown FM1000A - page 44

    6–16 FM1000A User's Manual Notes: ...

  • Crown FM1000A - page 45

    7–1 Service and Support Section 7—Ser vice and Support W e understand that you may need various levels of support or that the product could require servicing at some point in time. This section provides information for both of these scenarios. ...

  • Crown FM1000A - page 46

    7– 2 FM1000 A User's Manual 7.1 Service The product warranty (see opposite page) outlines our responsibility for defective products. Before returning a product for repair or replacement (our choice), call our Customer Service department using the following telephone number: (866) 262-891 7 Our Customer Service Representative will give you fu ...

  • Crown FM1000A - page 47

    Service and support 7 – 3 Crown Broadcast Three Year Limited Product Warranty SUMMARY OF WARRANTY Crown Broadcast, IREC warrants its broadcast products to the ORIGINAL PURCHASER of a NEW Crown Broadcast product, for a period of three (3) years after shipment from Crown Broadcast. All products are warranted to be free of defects in materials and w ...

  • Crown FM1000A - page 48

    7– 4 FM1000 A User's Manual Notes: ...

  • Crown FM1000A - page 49

    7–5 Service and Support To obtain factory service, complete the bottom half of this page, include it with the unit, and ship to: International Radio and Electronics Company, Inc. 25166 Leer Drive Elkhart, Indiana, U.S.A. 46514-5425 For units in warranty (within 3 years of purchase from any authorized Crown Dealer): We pay for ground UPS shipments ...

  • Crown FM1000A - page 50

    G–1 Glossary Glossar y The following pages define terms and abbreviations used throughout this and other Crown Broadcast manuals. A B C ...

  • Crown FM1000A - page 51

    G– 2 FM 10 00 A User's Manual A B C AF Audio Frequency; the frequencies between 20 Hz and 20 kHz in the electromagnetic spectrum. ALC Automatic Level Control AM Amplitude Modulation; the process of impressing information on a radio-frequency signal by varying its amplitude. bandwidth The range of frequencies available for signalling. BCD Bin ...

  • Crown FM1000A - page 52

    G–3 Glossary exciter (1) A circuit that supplies the initial oscillator used in the driver stage. (2) A transmitter configuration which excludes stereo generation and audio processing. FET Field-Effect T ransistor frequency synthesizer A circuit that generates precise frequency signals by means of a single crystal oscillator in conjunc- tion with ...

  • Crown FM1000A - page 53

    G– 4 FM 10 00 A User's Manual A B C PA I Power Amplifier Current PA V Power Amplifier Voltage pilot A 19–kHz signal used for stereo transmissions. pre-emphasis The deliberate accentuation of the higher audio frequencies; made possible by a high-pass filter . processing The procedure and/or circuits used to modify incoming audio (keeping it ...

  • Crown FM1000A - page 54

    G–5 Glossary SWR Standing-Wave Ratio; on a transmission line, the ratio of the maximum voltage to the minimum voltage or maximum current to the minimum current; also the ratio of load impedance to in- tended (50 ohms) load impedance. THD T otal Harmonic Distortion translator A transmitter designed to internally change an FM signal from one freque ...

  • Crown FM1000A - page 55

    Index-i Index A A A A A AC Input Board 4–5 AC Power 1–3 AC power 2–4 ALC 3–4, 5–3 Antenna 3–7 mismatch 5–5 antenna 2–5 B B B B B Backplane Assembly 4–3 Backplane DC Interconnect Board 4–3 Board Layouts 6–3 C C C C C Circuit Breaker 3–4 Combiner Board 4–2 Connections 2–5 Connectors Hubble T wist Lock® 2–4 Hubble T wist ...

  • Crown FM1000A - page 56

    Index-ii R R R R R remote I/O 2–7 RF Drive Requirement 1–3 RF Harmonics 1–3 RF Output Impedance 1–3 RF output power 1–2 RF Power Output 1–3 RF power output 1–2 RU spaces 1–2 S S S S S S/N Ratio 1–3 Safety 1–4 Schematics 6–3 Spurious Products 1–3 SWR 1–3, 3–4, 5–3 T T T T T T ot Current 5–4 transmitter package 1–2 T ...

Fabricant Crown Catégorie Stereo Amplifier

Les documents que nous recevons du fabricant de l'appareilCrown FM1000A peuvent être divisés en plusieurs groupes. Ceux-ci sont, entre autres:
- dessins techniques Crown
- manuels d’utilisations FM1000A
- fiches produit Crown
- dépliants
- ou étiquettes-énergie Crown FM1000A
Tous sont importants, mais les informations les plus importantes du point de vue de l'utilisation de l'appareil se trouvent dans le manuel d’utilisation Crown FM1000A.

Un groupe de documents appelé manuels d’utilisation est également divisé en types plus spécifiques, tels que: Manuels d’installation Crown FM1000A, manuels d’entretien, brefs manuels ou manuels de l’utilisateur Crown FM1000A. Selon vos besoins, vous devriez chercher le document dont vous avez besoin. Sur notre site, vous pouvez voir le manuel le plus populaire d’utilisation du produit Crown FM1000A.

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Manuel d’utilisation complet de l’appareil Crown FM1000A, quelle devrait-elle être?
Le manuel d’utilisation, également appelé le mode d’emploi, ou tout simplement le manuel, est un document technique destiné à aider à utiliser Crown FM1000A par les utilisateurs. Des manuels sont généralement écrits par un rédacteur technique, mais dans un langage accessible à tous les utilisateurs Crown FM1000A.

Le manuel d’utilisation complet Crown, devrait inclure plusieurs éléments de base. Certains d'entre eux sont moins importants, tels que: la couverture / page de titre ou pages d'auteur. Cependant, la partie restante, devrait nous fournir des informations importantes du point de vue de l'utilisateur.

1. Introduction et des conseils sur la façon d'utiliser le manuel Crown FM1000A - Au début de chaque manuel, nous devrions trouver des indices sur la façon d'utiliser le document. Il doit contenir des informations sur l'emplacement de la table des matières Crown FM1000A, FAQ ou des problèmes les plus fréquents - les points qui sont les plus souvent recherchés par les utilisateurs de chaque manuel
2. Table des matières - index de tous les conseils pour lCrown FM1000A qui peuvent être trouvés dans le document courant
3. Conseils sur la façon d'utiliser les fonctions de base de l’appareil Crown FM1000A - qui devraient nous aider dans les premières étapes lors de l'utilisation Crown FM1000A
4. Troubleshooting - séquence systématique des activités qui nous aideront à diagnostiquer et ensuite résoudre les principaux problèmes de Crown FM1000A
5. FAQ - questions fréquemment posées
6. Détails du contact Informations sur l'endroit où chercher le contact avec le fabricant / service Crown FM1000A dans un pays donné, si le problème ne peut être résolu par nous-mêmes.

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