Ecler SAM512T User Manual [en, de, es, fr]

USER MANUAL MANUAL DE INSTRUCCIONES NOTICE D'UTILISATION BEDIENUNGSANLEITUNG

SAM512T

INSTRUCTION MANUAL

1. IMPORTANT REMARK 04

1.1. Safety Precautions 04

2. INTRODUCTION 04

3. INSTALLATION 05

4. INPUTS 05

5. OUTPUTS 06

6. CONSIDERATIONS 07

6.1. Starting Up 07

6.2. Gain, equalization, level indicators 07

6.3. Prelistening, monitoring 07

6.4. Ground loops, background noise 08

6.5. Cleaning 08

7. TECHNICAL CHARACTERISTICS 27

8. DIAGRAMS 28

8.1. Function list 28

8.2. Function diagram 29

8.3. Configuration diagram 30

8.4. Block diagram 31

All numbers subject to variation due to production tolerances. ECLER SA reserves the right to make changes or improvements in manufacturing or design which may affect specifications.

1. IMPORTANT REMARK We thank you for trusting on us and choosing our SAM512T mixer. In order to get the most in

operation and efficiency from your mixing unit, it is VERY IMPORTANT for you - before you plug anything to read this manual very carefully and take seriously into account all considerations specified within it. In order to guarantee the optimum operation of this unit, we strongly recommend that its maintenance be carried out by our Authorised Technical Services.

1.1. Safety Precautions This apparatus must be earthed through its mains cable.

Do not expose the unit to rain or water splashes, and do not place liquid containers or incandescent objects like candles on top of the unit.

Any change in the configuration of the unit must be carried out by a qualified technician. Should

any connection / disconnection task be done, always disconnect the unit from the mains supply.

There are no user serviceable parts inside the unit.

2. INTRODUCTION

Easy operation, 1-unit rack-height professional mixer, designed for installation and professional outdoors sound applications. These are its main features:

• 5 Channels with 2 selectable inputs per channel (balanced MIC and LINE).

• Mic input channel sensitivity internally selectable.

• +18V Phantom power available for all mic inputs.

• Level control and PFL (prelistening) for each channel.

• Direct microphone input on the front panel, channel 1.

• Included talkover assigned to "INPUT 1 with internally selectable recovery time.

• 3-Band tone controls, accessible with a screwdriver.

• Output level indicator (-10, 0 and +6dB).

• Independent output level control for "OUT 1" (balanced) and "OUT 2" (unbalanced).

• 2 Output levels, internally adjustable.

• Headphones level control.

• 2 Record outputs. Being REC 1 pre tone control and REC 2 post tone control.

• Direct access to the mix bus, in order to increase the number of inputs by just connecting another

mixer. Adjustable input sensitivity (0dB, -10dB).

• Remote MUTE of all inputs to allow connection to fire detection systems or any other required remote device. Internally configurable NO / NC (Normally Open / Normally Closed).

• Mono/stereo selector.

3. INSTALLATION This unit has been specially designed to be placed in a standard 19" rack, taking up 1 height unit.

The SAM512T is very well suited to be operated by people with a low technical knowledge. This is why its input sensitivity and tone controls are not easily accessible. The first ones can be internally changed by using jumpers; the second ones from the front panel, by using a trimming screwdriver (see 6.2.). Two considerations must be taken into account when you look for the right location where to put your SAM512T: first, maximum user comfort and second, easy access to the back panel in order to plug several different devices to and from the mixer. Your SAM512T has a very low power consumption, so it does not need any fan cooling, but you should avoid exposing the unit to very extreme temperatures and the atmosphere of the room where it is located should be as dry and dust-free as possible. Also, you should place the SAM512T away from noise sources (dimmers, motors, etc...), as well as from the power cables. The SAM512T operates under voltages from 90 to 264 V at 47 to 63 Hz. This device features an over dimensioned power supply that adapts to the mains voltage in any country of the world with no need to make any adjustments. In order to protect the mixer from eventual overloads, the SAM512T is protected by a timered power fuse (27) of 0.5A. If it gets blown up, you must replace it with an identical one. NEVER REPLACE THE FUSE WITH ANOTHER ONE WITH A HIGHER VALUE.

CAUTION: Fuse substitutions have to be performed by a qualified technician.

4. INPUTS Your SAM512T holds two kinds of inputs in each of its channels (MIC, stereo LINE). Selection

between them is done via push button located on the back panel of the device.

- Microphones: 5 mixable channels provided with a jack connector (15) for a microphone with a nominal input level of -50dBV (3.16mV). Internally adjustable to –30dBV (31.6mV). See diagram. There is also another microphone input, located on the front panel (1), which is connected in parallel with the existing one of the same channel on the back panel. These microphone inputs allow a balanced connection; for this, you must plug a stereo 1/4" jack as follows:

Live or direct signal > Tip Cold or inverted signal > Center ring Ground/Earth > Back ring

Microphones must be low impedance (200 to 600Ω) and monophonic. For NON balanced connections, use monophonic jacks. It is also possible to make a non balanced connection with a stereo jack connector by shorcircuiting the center ring to ground.

The SAM512T features a phantom power supply necessary for using condenser microphones,

where the tip and the ring of the connector correspond to the positive and the sleeve to the negative voltage. A set of jumpers let you enable or disable the phantom power supply for individual microphone inputs. See configuration diagram. The factory default setting is enabled.

Talkover functionality is provided and actuates when signal is detected on channel 1 and

"TALKOVER" (2) push button is activated. Talkover performs a fixed attenuation on remaining input channels of the unit.

- Compact disc, DAT, MP3, DVD Audio... It is recommended to plug them to a stereo LINE input (17), which have RCA connectors. All these inputs can hold line signals with a level of 0dBV (1V).

- Turntables CAN NOT be directly connected to this unit, because none of the SAM512T's inputs has a RIAA preamplifier.

- MIX connection to other mixing units (18): Your SAM512T allows direct access to the main mixing "bus". This input is specially useful to interconnect two SAM512T units, or to plug another mixer, thus increasing the maximum effective number of inputs and mixable channels. Input sensitivity is selectable by internal jumper between 0dBV (factory adjustment) and –10dBV. See configuration diagram.

5. OUTPUTS

- The SAM512T provides with two main outputs OUT 1 (21, 22) and OUT 2 (24), The type of connector is the only difference between them: XLR3 connectors for OUT 1 (electronically balanced output) and RCA for OUT 2 output.

XLR 3 pin assignment to signal corresponds to: Live or direct signal > Pin 2

Cold or inverted signal > Pin 3 Ground/Earth > Pin 1

The balancing circuit simulates a transformer so, if you want to use OUT 1 in non balanced mode, you must shorcircuit the pin 3 to pin 1. If you do not do this, the output signal will not have the right level and quality. You should be careful when manipulating the OUT VOL (9, 11) of every output of this unit and avoid having the "clip" indicators from the connected power amplifier lit up permanently; instead, make them light up ONLY following the low frequencies from time to time, in the worst situation.

- The SAM512T has 2 record outputs which use RCA type connectors. The only difference between them is that REC 1 (19) is not effected by the tone control / L+R and REC 2 (20) is.

- L+R switch (23): This back panel switch can turn the signal from the REC 2, OUT 1 and OUT 2 into mono.

- Headphones: For best operation, they must be high impedance ones (200 to 600 Ω). Plug them to the headphones output (13), located on the front control panel, by means of a standard stereo 1/4" jack connector. Center ring is right, tip is left and back ring is ground.

- SAM512T Incorporates a REMOTE MUTE (25) feature that mutes all inputs of the unit when a remote contact is closed (factory adjustment) or open (internally selectable by jumper). See configuration diagram. Remote MUTE feature has been designed for the connection with fire detection systems or any other security system. It affects all inputs channels. Internally configurable NO / NC (Normally open / Normally closed).

6. CONSIDERATIONS

6.1. Starting up You can power up this unit by pressing the power switch (14). Although powering up noise is

minimum, it is advisable to power up all your devices by following this sequence: sound sources, mixing unit, equalizer and - finally - power amplifiers. Powering down sequence must be identical but in reverse order. By following this simple rules you will avoid any peaks or transitories produced by these devices to reach the following elements of the chain.

6.2. Gain, equalization, level indicators GAIN

The SAM512T provides with an efficient way of trimming the input sensitivities, which allows the different signal levels from all your sources to be matched. This system uses some bridges or "jumpers" which allow a direct connection to the terminals located on the circuit board itself (see configuration diagram). The mixer is shipped with the following factory adjust for sensitivities and levels:

MIC: -50dBV LINE: 0dBV MIX: 0dBV OUT: 0dBV EQUALIZATION

Tone controls (5, 6, 7) provide a gain/attenuation of ±15dB for each of the three bands, which are centered at 100Hz, 2kHz and 10kHz. Because of the intended applications of this unit, it has a tone control system that needs a screwdriver to be used in order to perform the adjust, thus avoiding any error during the normal use procedure.

LEVEL INDICATORS These indicators (8) monitor the signal level at the MIX. The nominal internally-adjusted output level corresponds to 0dB.

6.3. Prelistening, monitoring This is performed by switching on the PFL switches - beside the volume faders - (4) of any of the

inputs. By doing this (just or several at the same time), the input signals from the corresponding channels will be routed to the phones output. The VOL (12) fader from the MONITOR section allows this signal to be adjusted.

6.4. Ground loops, background noise You should always make sure that the signal sources coming to the unit, as well as all devices

connected to its outputs, do not have their grounds interconnected, that is; ground must never come from two different devices. Should this ever happen, noises could occur and seriously interfere the sound quality. Cable shielding, when connected to the chassis, must never be interconnected, so as to avoid ground loops. The SAM512T mixer has been designed for the lowest possible background noise. Independently from the electronic design itself, background noise level will directly depend on the right installation and use of the mixing unit. I. e.: setting a channel VOL to "2" and the output to "10" is not the same as the other way round. In the first case, the signal coming to the mixing amplifier - which has got its own noise - is low, and so is the signal-to-noise ratio (low signal). When the output amplifier boosts the whole signal we will get a very high background noise. In the second case - with the channel fader at maximum - the mixing level is high, and so is the signal-to-noise ratio. When the signal reaches the VOL OUTPUT and is boosted, it will keep a much better signal-to-noise ratio than in the preceding case.

6.5. Cleaning The front panel should not be cleaned with dissolvent or abrasive substances because silk-

printing could be damaged. To clean it, use a soft cloth slightly wet with water and neutral liquid soap; dry it with a clean cloth. Be careful that water never gets into the unit through the holes of the front panel.

MANUAL DE INSTRUCCIONES

1. NOTA IMPORTANTE 10

1.1. Precauciones 10

2. INTRODUCCIÓN 10

3. INSTALACIÓN 11

4. ENTRADAS 11

5. SALIDAS 12

6. CONSIDERACIONES 13

6.1. Puesta en funcionamiento 13

6.2. Ganancia, ecualización, indicadores de nivel 13

6.3. Preescucha, monitoraje 13

6.4. Bucles de masa, ruido de fondo 14

6.5. Limpieza 14

7. CARACTERÍSTICAS TÉCNICAS 27

8. DIAGRAMAS 28

8.1. Lista de funciones 28

8.2. Diagrama de funciones 29

8.3. Diagrama de configuración 30

8.4. Diagrama de bloques 31

Todos los datos están sujetos a variación debida a tolerancias de producción. ECLER S.A. se reserva el derecho de realizar cambios o mejoras en la fabricación o diseño que pudieran afectar las especificaciones.

1. NOTA IMPORTANTE Agradecemos su confianza por haber elegido nuestro mezclador SAM512T. Para conseguir la

máxima operatividad y rendimiento del mezclador es MUY IMPORTANTE antes de su conexión leer detenidamente y tener muy presentes las consideraciones que en este manual se especifican. Para garantizar el óptimo funcionamiento de este aparato recomendamos que su mantenimiento sea llevado a cabo por nuestros Servicios Técnicos autorizados.

1.1. Precauciones Este aparato debe ser conectado a tierra mediante su cable de alimentación.

No exponga el aparato a la caída de agua o salpicaduras, no ponga encima objetos con líquido ni fuentes de llama desnuda, como velas.

Cualquier cambio en la configuración debe ser realizada por personal técnico cualificado.

En caso de requerir alguna intervención y / o conexión desconexión del aparato debe desconectarse previamente de la alimentación. En el interior del aparato no existen elementos manipulables por el usuario.

2. INTRODUCCIÓN Mezclador profesional de una unidad rack de sencilla manipulación diseñado para aplicaciones de

sonorización. Estas son sus características principales:

• Cinco canales con dos entradas seleccionables por canal (micro balanceado, línea).

• Nivel de sensibilidad de micro internamente configurable.

• +18V de alimentación Phantom disponible en todas las entradas "MIC"

• Control de nivel y preescucha por canal.

• Entrada directa de micro en panel frontal, canal 1.

• Incluye talkover asignado a la "INPUT 1" con selector interno del tiempo de recuperación.

• Controles de tono de tres bandas accesibles mediante destornillador.

• Indicadores de nivel de salida por canal (-10, 0 y +6dB).

• Controles independientes de nivel de salida sobre "OUT 1" balanceada y "OUT 2" no balanceada.

• Dos niveles de salida internamente ajustables.

• Control de nivel para auriculares.

• Dos salidas de grabación. Una no queda afectada por los tonos y otra sí.

• Acceso directo al "bus" de mezcla para incrementar el número de entradas interconectando con

otro mezclador. Con la sensibilidad de entrada ajustable a 0dB o –10dB.

• Control remoto de "MUTE" que afecta a todas las entradas para la conexión de sistemas de detección de fuego u otros dispositivos de seguridad. Configurable internamente "NO / NC" (normalmente abierto, normalmente cerrado).

• Selector mono / estéreo.

+ 22 hidden pages