Table of contents sommario sommaire – FBT MMA 3240 User Manual

Page 3

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TABLE OF CONTENTS

SOMMARIO

SOMMAIRE

SOMMAIRE

1.

Description générale

1.1

Panneau frontal

............................. 13

1.2

Panneau postérieur

....................... 13

2.

Précautions générales

2.1

Installation

..................................... 14

2.2

Alimentation

................................... 14

2.3

Conseils de securite ....................... 14

3.

Connexions

3.1

Criteres generaux

.......................... 15

3.2

Entrées micro

................................. 15

3.3

Entrées MIC/LINE

.......................... 15

3.4

Entrées auxiliaires

.......................... 16

3.5

Entrée téléphonique

....................... 16

3.6

Sortie ‘Music On Hold’ (MOH) .......... 17

3.7

Priorité micro et
signal d’annonce

............................ 17

3.8

Sorties de puissance

...................... 18

3.8.1

Systèmes à basse impédance ......... 18
- Calcul de l’impédance sur

les branchements en série ........... 18

- Calcul de l’impédance sur

les branchements en parallèle ...... 18

3.8.2

Systèmes à tension constante ........ 19
- Calcul du nombre de

diffuseurs (par les puissances) ..... 19

- Calcul du nombre de

diffuseurs (par les impedances) ... 19

3.9

Sortie enregistreur/booster
et prise egaliseur

........................... 19

3.10

Selection de zones d’ecoute ........... 20

4.

Utilisation de l’appareil

4.1

Mise en marche

.............................. 21

4.2

Controle de volume principal .......... 21

4.3

Correction acoustique

.................... 21

- Contrôle tonalité basses (BASS) ... 21

- Contrôle tonalité aigues (TREBLE) . 21

4.4

Surcharge et protection

................. 21

5.

Caractéristiques techniques...

22

Schéma fonctionnel

...........................

33

TABLE OF CONTENTS

1.

General description

1.1

Front panel

...................................... 3

1.2

Rear panel

....................................... 3

2.

General warnings

2.1

Installation

....................................... 4

2.2

Power supply

................................... 4

2.3

Safety notes

.................................... 4

3.

Connections

3.1

General features .............................. 5

3.2

Microphone inputs ............................ 5

3.3

MIC/LINE inputs

............................... 5

3.4

Auxiliary inputs

................................ 6

3.5

Telephone input

............................... 6

3.6

’Music On Hold’ output (MOH) ........... 7

3.7

Microphone priority
and warning signal

........................... 7

3.8

Power outputs

................................. 8

3.8.1

Low-impedance systems ................... 8
- Calculating the impedance

value in series connections ............ 8

- Calculating the impedance

value in parallel connection ............ 8

3.8.2

Constant voltage systems ............... 9
- Determining the number of

speakers (through power values) .. 9

- Determining the number of

speakers (through impedance) ....... 9

3.9

Recorder/booster output
and equaliser socket ........................ 9

3.10

Selecting the listening areas ........... 10

4.

Operation

4.1

Power on

....................................... 11

4.2

Master volume control

.................... 11

4.3

Acoustic adjustment

....................... 11

- Bass control (BASS) ..................... 11
- Treble control (TREBLE) ............... 11

4.4

Overloading and protection ............ 11

5.

Technical specifications

.......... 12

Block diagram

.....................................

33

SOMMARIO

1.

Descrizione generale

1.1

Pannello frontale .............................. 3

1.2

Pannello posteriore .......................... 3

2.

Avvertenze generali

2.1

Installazione

.................................... 4

2.2

Alimentazione

................................... 4

2.3

Note di sicurezza .............................. 4

3.

Connessioni

3.1

Criteri generali

................................. 5

3.2

Ingressi microfonici

.......................... 5

3.3

Ingressi MIC/LINE

............................ 5

3.4

Ingressi ausiliari

............................... 6

3.5

Ingresso telefonico

.......................... 6

3.6

Uscita ‘Music On Hold’ (MOH) ............ 7

3.7

Precedenza microfonica
e segnale di preavviso ..................... 7

3.8

Uscite di potenza

............................. 8

3.8.1

Sistemi a bassa impedenza ............... 8
- Calcolo dell’impedenza

nei collegamenti in serie ................. 8

- Calcolo dell’impedenza

nei collegamenti in parallelo ............ 8

3.8.2

Sistemi a tensione costante .............. 9
- Calcolo del numero

di diffusori (tramite le potenze) ...... 9

- Calcolo del numero

di diffusori (tramite le impedenze) .. 9

3.9

Uscita registratore/booster
e presa equalizzatore ....................... 9

3.10

Selezione di zone d’ascolto ............. 10

4.

Uso dell’apparecchio

4.1

Accensione

.................................... 11

4.2

Controllo di volume principale ......... 11

4.3

Correzione acustica

....................... 11

- Controllo toni bassi (BASS) ........... 11
- Controllo toni acuti (TREBLE) ........ 11

4.4

Sovraccarico e protezione .............. 11

5.

Caratteristiche tecniche

......... 12

Schema a blocchi

...............................

33

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