Alto Professional Stealth Pro User's Guide

User Guide

English ( 3 – 14 )

Guía del usuario

Español ( 15 – 26 )

Guide d’utilisation

Français ( 27 – 38 )

Guida per l’uso

Italiano ( 39 – 50 )

Benutzerhandbuch

Deutsch ( 51 – 62 )

Appendix

English ( 63 )

2

User Guide (English)

Introduction

Box Contents

alth Pro Transmitter (x1)

Ste
Stealth Pro Receiver (x2)
Power Adapters (x3)
Mini-XLR to XLR Cables (x2)
Removable Antennas (x6)
M10 Rigging Bolts (x2)

Short Rack Ear (x2)
Long Rack Ear (x1)
M4 Rack Ear Coupling Bolts (x5)
Center Coupling Bracket (x1)
User Guide
Safety & Warranty Manual

Support

F

or the latest information about this product (system requirements, compatibility information, etc.)

and product registration, visit altoprofessional.com.
For additional product support, visit altoprofessional.com/support.

Important Safety Precautions

ease note: Alto Professional and inMusic are not responsible for the use of its products or the

Pl

misuse of this information for any purpose. Alto Professional and inMusic are not responsible for the
misuse of its products caused by avoiding compliance with inspection and maintenance procedures.
Please also refer to the included safety and warranty manual for more information.

Sound Level

manent hearing loss may be caused by exposure to extremely high noise levels. The U.S.

Per
Occupational Safety and Health Administration (OSHA) has specified permissible exposures to
certain noise levels. According to OSHA, exposure to high sound pressure levels (SPL) in excess of
these limits may result in hearing loss. When using equipment capable of generating high SPL, use
hearing protection while such equipment is under operation.

Hours per day SPL (dB) Example

8 90 Small gig
6 92 Train
4 95 Subway train
3 97 High level desktop monitors
2 100 Classical music concert

1.5 102 Riveting machine
1 105 Machine factory

0.50 110 Airport

0.25 or less 115 Rock concert

3

Quick Start

Assembly

Note: If you require assistance, contact Alto Professional customer service at altoprofessional.com/support.

Mounting the Receiver to the Loudspeaker

Use the supplied M10 rigging bolts to connect the Stealth Pro Wireless receiver to the powered
speaker's fly point.

M10 Rigging Bolt

Fly Point

4

Rack-Mounting One Transmitter

M4 (x5)

Rack-Mounting Two Transmitters

M4 (x16)

5

Connection Diagrams

Items not listed under Introduction > Box Contents are sold separately.

Example 1 – Mono Operation

To send mono signals through the Stealth Pro transmitter to a single receiver:

1. Connect your mixer’s main output to an input on the Stealth Pro transmitter, and connect the
receiver’s output to your loudspeaker’s input. Keep all mixer volume and transmitter volume
controls at their minimum settings.

Note: When the transmitter is set to Mono, either input can be transmitted on both channels. This
allows you to adjust the signal levels being sent to separate zones, for example.

2. Power on the Stealth Pro transmitter and receiver. Set their channels to matching numbers. See
the instructions for using the Auto Sync function in Operation for more information.

3. Adjust the transmitter and receiver antennas to a vertical position for best results in transmitting
the wireless signal. If the wireless signal quality is poor, change the position of the antennas.

4. Set the transmitter to Mono and adjust the Volume control to get a strong signal without clipping.

5. Turn on your loudspeaker, adjust the output level on your mixer, and adjust the Volume control
on the transmitter to hear the audio signal. If you hear noise in the signal, change to a different
channel until a clean signal comes through. See the instructions for changing the RF frequency in

Operation for more information.

Receiver

Power

Power

Transmitter

Mixer

6

Powered Speaker

Example 2 – Stereo Operation

To send stereo signals through the Stealth Pro transmitter to two receivers:

1. Connect your mixer’s main outputs to the corresponding input channels on the Stealth Pro
transmitter, and connect the receivers’ outputs to your loudspeakers’ inputs. Keep all mixer
volume and transmitter volume controls at their minimum settings.

2. Power on the Stealth Pro transmitter and receivers. Set their channels to matching numbers. See
the instructions for using the Auto Sync function in Operation for more information.

3. Adjust the transmitter and receiver antennas to a vertical position for best results in transmitting
the wireless signal. If the wireless signal quality is poor, change the position of the antennas.

4. Set the transmitter to Stereo and adjust the Volume control to get a strong signal without
clipping.

5. Turn on your loudspeakers, adjust the output level on your mixer, and adjust the Volume control
on the transmitter to hear the audio signal. If you hear noise in the signal, change to a different
channel until a clean signal comes through. See the instructions for changing the RF frequency in

Operation for more information.

Receiver Receiver

Power

Powered Speaker

Power

Mixer

Transmitter

Powered Speaker

Power

7

Operation

To set up and use your Stealth Pro, follow the steps in this chapter in order. If you are setting up a
system using multiple receivers, set up each receiver one at a time, and keep each receiver powered
on as you set up additional units.

Setting Up the Receiver

Frequency Selection

1. Use the included mini-XLR to XLR cable to connect the receiver’s Audio Output to your
loudspeaker.

2. Use the included power adapter to connect the receiver’s power connector to your power
source. The receiver will power on automatically.

3. Set the receiver’s channel using one of the following methods:

• To automatically select a frequency:

i. Press the Scan button to automatically scan for the next available RF channel. The

channel will flash on the Display and the RF meter will show the level of RF congestion
for each scanned channel in real-time.

To exit auto frequency selection at any time during the scanning process, press the Freq
button. Press the L/R, Delay, or SQ buttons to exit Scan mode and enter that respective
mode. The receiver will revert to the last selected frequency.

ii. Once the receiver finds the next available channel with an acceptable RF congestion

level, it will hold that channel and continue flashing the channel number in the display.
During this time you can audition the held channel.

iii. If you need to keep scanning for a different available frequency, press the Up/Down

buttons while the channel is flashing to continue scanning in that direction for the next
available channel.

iv. Press the Scan button to select the auto-scanned frequency

and enter broadcast mode. The RF indicator in the display will
flash, indicating that the selected frequency is being broadcast
to the transmitter via the 2.4 GHz frequency (see image).

If the Scan button is not pressed after 5 minutes, the receiver will exit Scan mode and
revert to the previously selected frequency.

v. Once the transmitter has synced with the receiver (see Setting Up the Transmitter

below), the receiver will automatically stop broadcasting the selected frequency and the
RF indicator will stop flashing. You can exit broadcast mode by pressing the Scan
button to return to normal operation, or press the L/R, Delay, or SQ buttons to exit
broadcast mode and enter the selected function.

8

• To manually select a frequency:

i. Press the Freq button once to enter manual frequency selection mode. The RF

frequency and channel will flash on the Display.

ii. With the frequency flashing, press the Up/Down buttons to increase (+) or decrease (-)

the frequency and corresponding channel.

iii. When an acceptable frequency is found, press Freq a second time to complete manual

frequency selection and enter broadcast mode. The RF indicator will flash in the display,
signaling that the selected frequency is being broadcast to the transmitter via the 2.4
GHz frequency (see image, above).

iv. Once the transmitter has synced with the receiver (see Setting Up the Transmitter

below), the receiver will automatically stop broadcasting the selected frequency and the
RF indicator will stop flashing. You can exit broadcast mode by pressing the Scan
button to return to normal operation, or press the L/R, Delay, or SQ buttons to exit
broadcast mode and enter the selected function.

4. The transmitter must be in Sync mode to accept frequency changes made by the receiver.

• The receiver will stop sending frequency data if it receives an RF signal lock from the

transmitter, or if it receives no RF signal lock after 10 minutes.

Delay Line Adjustment

1. Press the Delay button once to enter delay line adjustment mode. The measurement units on

the display will flash. By default, the selected measurement unit when the Delay button is first
pressed is milliseconds (ms). To change the measurement unit:

i. Press Delay a second time to change the unit to feet (ft.).

ii. Press Delay a third time to change the unit to meters (m).

iii. If Delay is pressed a fourth time, the measurement units will stop flashing and delay line

adjustment mode is exited. To start over, press Delay again.

2. Once the measurement unit is selected, use the Up/Down buttons to increase (+) or decrease

(-) the delay parameter. Increasing the delay amount greater than zero should cause the Delay
On icon in the Display to light.

• Single press the Up/Down buttons to adjust the value incrementally.

• Press and hold the Up/Down buttons to continually adjust the value.

3. When the desired value is reached, press the Delay button to exit delay line adjustment mode.

You can also press the Scan, Freq, L/R, Delay, or SQ buttons to exit delay line adjustment
mode and enter that respective mode.

9

Setting Up the Transmitter

1. Use a standard XLR cable or 1/4” (6.35 mm) cable (not included) to connect your mixer or other
audio source to the transmitter’s Combo Inputs.

2. Use the included power adapter to connect the transmitter’s power connector to your power
source. Press the Power Switch to turn the transmitter on.

3. To enter frequency selection mode, first press the Freq button on the transmitter.

i. Press once for Channel 1. The Channel 1 frequency will flash on the Display.

ii. Press a second time within 10 seconds of the first press to enter frequency selection

mode for Channel 2. The Channel 2 frequency will flash on the Display.

iii. Press a third time within 10 seconds of the second press to exit manual frequency

selection mode.

Next, set the transmitter’s frequency using one of the following methods:

• To automatically synchronize the transmitter with the receiver’s selected frequency:

i. Make sure the receiver is powered on and within 3 feet (1 meter) of the transmitter.

ii. Press the Sync button on the transmitter. The Sync indicators will flash on both

channels in the Display, and the transmitter is ready to receive channel and frequency
information from the receivers.

iii. With Sync flashing on the transmitter, press the Freq button on

the receiver you want to synchronize until the RF indicator
flashes on the Display (see image). When the RF indicator
flashes, the receiver will enter broadcast mode and transmit
channel and frequency information via the 2.4 GHz frequency.

If the transmitter has not received a frequency from the receiver after 5 minutes, it will
exit Sync mode and revert to the last set frequency. You can also press the Sync button
a second time while the Display is flashing to exit automatic frequency selection mode.

iv. When synchronization is complete and the receiver exits broadcast mode, the RF

indicator will stop flashing on the receiver and the Sync indicator will stop flashing and
disappear on the synchronized channel of the transmitter.

Important: If you are setting up a system using multiple receiver-transmitter pairs, set
up each receiver one at a time and keep each receiver powered on as you set up
additional units. This will prevent each pair from automatically selecting the same
channel.

• To manually select a frequency:

i. With Channel 1 or Channel 2 flashing on the transmitter (see above), press the Up/Down

buttons on the transmitter to increase (+) or decrease (-) the frequency and
corresponding channel.

ii. When an acceptable frequency is found, press Freq again to exit manual frequency

selection mode. The frequency will stop flashing, and the new RF channel is now active.

4. Press the Vol button until the volume level of the appropriate channel flashes in the Display. Use
the Up/Down buttons to adjust the volume level. When finished, press the Vol button until the
display stops flashing.

10

Features

Transmitter

Front Panel

1. Power Switch: This switch turns the
transmitter on or off.

2. Display: This display shows the current
channel, frequency, and AF volume
level. See Display for more information.

3. Up/Down (+/–): Use these buttons to
adjust the selected value on the
Display.

4. Volume: Press this button to adjust the incoming signal level.

5. Sync: Press this button to automatically synchronize with the receiver. See Operation for more
information.

6. Freq: Press this button to manually select the RF frequency and channel for each stereo channel.
The selected channel will flash on the Display. See Operation for more information.

i. Press once to manually adjust the Left Channel.

ii. Press a second time to manually adjust the Right Channel.

iii. Press a third time to exit manual frequency adjustment mode.

Display

1. AF: This meter shows the current audio signal
level received from the Combo Inputs.

2. Frequency: This is the current RF frequency in
MHz.

3. Channel (region specific): This is the current RF
channel number. The number of available
channels depends on your region.

Rear Panel

1. Power Connector: Connect the
included 12 V, 1.0 A power adapter
here.

2. Combo Inputs: Connect balanced or
unbalanced 1/4” (6.35 mm) or XLR line­level sources here.

3. Mono/Stereo Select: Adjust this switch to change the wireless signal that is sent to the receiver
to be either mono or stereo.

4. Antenna Terminals: Attach the BNC antennas to these connectors. Place the antennas in a
vertical position for best results in transmitting the wireless signal. If the wireless signal quality is
poor, change the position of the antennas.

4

5

6

2

4

2 2

3 3

3

1 1

2

1

3

1

4

11

Receiver

Top Panel

1. Antennas (BNC): The wireless receiver’s 2 antennas

2. Display: This display shows the current channel,

3. Mount: Use this M10 mounting point to attach the

4. Up/Down (+/–): Use these buttons adjust the

5. Scan: Press this button to automatically scan for the

6. Freq: Press this button to manually select the RF

7. L/R: Selects which stereo channel the receiver

8. Delay: Press this button to adjust the time alignment of loudspeakers depending on their

iii. Press a third time to change the measurement unit to meters (m).
iv. Press a fourth time to exit delay line adjustment mode.

9. SQ (Squelch): Sets an RF signal level limit. Signals must come in above that noise limit in order

receive the signal that is sent from the transmitter.
Place the antennas in a vertical position for best
results in transmitting the wireless signal. If the
wireless signal quality is poor, change the position of
the antennas.

frequency, and other settings. See Display for more
information.

1

1

3

2

receiver to a loudspeaker.

selected value on the Display.

best available RF frequency and channel. See

Operation for more information.

frequency and channel. See Operation for more
information.

receives from the transmitter. This only applies if both
receivers are being used in a stereo application. On
both receivers, set the switch to the appropriate
positions that match the L/R speaker configuration.

position. See Operation for more information.
i. Press once to enter delay line adjustment mode. The selected measurement unit will flash on

the Display. The default measurement unit is milliseconds (ms)

ii. Press a second time to change the measurement unit to feet (ft.).

to pass through the squelch filter. Higher settings allow for greater noise reduction and dynamic
range, but a setting that’s too high can cause intentionally quieter sounds to be silenced along
with the noise. Be sure to experiment with different settings to find an optimal balance.

6

8

5

7

9

4

12

Display

1. RF: During the scan process, the RF meter shows the
relative amount of RF noise on each scanned
frequency. A low meter value means that the RF
channel is clear, while a high RF meter value indicates
that there is a significant amount of RF interference on
the currently scanned channel.

2. AF: This meter shows the current audio signal level
sent from the receiver’s Audio Output.

3. Frequency: This is the current RF frequency in MHz.

4. Channel (region specific): This is the current RF channel number. The number of available
channels depends on your region.

5. L/R: Indicates which stereo channel the receiver is receiving from the transmitter.

6. Delay: Indicates whether the Delay function is on or off and displays the selected measurement
unit. The available measurement units are milliseconds (ms), feet (ft.), and meters (m).

Rear Panel

1. Power Connector: Connect the included 12 V, 1.0 A
power adapter here.

2. Audio Output (mini-XLR): Use the included mini-XLR
to XLR cable to connect this balanced output to your

loudspeaker.

1

6

2

4

3

2

5

1

13

Troubleshooting

Problem Solution

The receiver does not produce any
sound.

There is audible interference in the
transmission.

The signal is distorted. Make sure the receiver is not immediately near any metal objects or

14

Make sure the receiver’s power adapter is properly connected to
the power connector and a power source.

Make sure the receiver’s audio output is properly connected to
your mixer, amplifier system, etc. Also, make sure the volume
controls on your mixer and speaker are turned up.

Make sure both the transmitter and receiver are set to the same RF
frequency and channel.

Make sure the receiver and transmitter are within 200 feet (60
meters) and have a clear line of sight. Also, make sure the receiver
is not immediately near any metal objects or devices that could
cause RF interference (other wireless systems, TVs, radio, etc.).

Adjust the squelch control setting. A higher squelch setting
provides better protection against interference but may also reduce
signal range. Choose a setting that most effectively mutes
interference yet allows the true signal to pass through. If poor signal
quality requires a higher squelch setting, try to eliminate the
interference or switch the transmitter/receiver channel to avoid a
loss of signal range.

Make sure the receiver and transmitter are within 200 feet (60
meters) and have a clear line of sight. Also, make sure the receiver
is not immediately near any metal objects or devices that could
cause RF interference (other wireless systems, TVs, radio, etc.).

Change the RF frequency and channel on both the transmitter and
receiver (to the same channel).

If you are using multiple transmitter-receiver pairs, use only one pair
at a time, or make sure the pairs are not using the same or adjacent
frequencies.

Adjust the squelch control setting. A higher squelch setting
provides better protection against interference but may also reduce
signal range. Choose a setting that most effectively mutes
interference yet allows the true signal to pass through. If poor signal
quality requires a higher squelch setting, try to eliminate the
interference or switch the transmitter/receiver channel to avoid a
loss of signal range.

devices that could cause RF interference (other wireless systems,
TVs, radio, etc.).

Make sure the receiver antennas do not touch each other.

Keep any connected audio cables away from the antennas.

Make sure no other devices are sending signals on the same RF
frequency and channel.

Change the RF frequency and channel on both the transmitter and
receiver (to the same channel).

Guía del usuario (Español)

Introducción

Contenido de la caja

Transmisor Stealth Pro (1)
Receptor Stealth Pro (2)
Adaptadores de alimentación (3)
Cables mini XLR a XLR (2)
Antenas removibles (6)
Tornillos M10 (2)

Soporte

Para obtener la información más completa acerca de este product (los requisitos del sistema,
compatibilidad, etc) y registro del producto, visite altoprofessional.com.

Para soporte adicional del producto, visite altoprofessional.com/support.

Precauciones importantes para la seguridad

Para tener en cuenta: Alto Professional e inMusic no son responsables del uso de sus productos o

el mal uso de esta información para cualquier propósito. Alto Professional e inMusic no son
responsables del mal uso de sus productos causados por la omisión del cumplimiento de los
procedimientos de inspección y mantenimiento. Para más información, consulte también el manual
de seguridad y garantía incluido.

Nivel de sonido

La exposición a niveles muy altos de ruido puede causar pérdidas auditivas permanentes. La
Administración de Seguridad y Salud Ocupacional de EE.UU. (OSHA) ha especificado los niveles de
exposición permisibles a ciertos niveles de ruido. Según la OSHA, la exposición a niveles de presión
sonora (SPL) elevados que excedan estos límites puede causar pérdidas auditivas. Cuando utilice
equipos capaces de generar SPL elevados, use protecciones auditivas mientras dichos equipos
están en funcionamiento.

Horas diarias SPL (dB) Ejemplo

8 90 Música de bajo volumen
6 92 Tren
4 95 Tren subterráneo
3 97 Monitores de escritorio de alto nivel
2 100 Concierto de música clásica
1,5 102 Remachadora
1 105 Máquina fabril
0,50 110 Aeropuerto
0,25 o menos 115 Concierto de rock

Orejeta corta para rack (2)
Orejeta larga para rack (1)
Pernos M4 de acoplamiento de orejeta para rack (5)
Soporte de acoplamiento central (1)
Guía del usuario
Manual sobre la seguridad y garantía

15

Inicio rapido

Montaje

Nota: Si requiere asistencia, póngase en contacto con el servicio al cliente de Alto Professional

ingresando a altoprofessional.com/support.

Montaje del receptor en el altavoz

Use el tornillo M10 suministrado para conectar el receptor Stealth Pro Wireless al punto de conexión
del altavoz alimentado.

Tornillo M10

Punto de
conexión

16

Montaje en rack de un transmisor

M4 (x5)

Montaje en rack de dos transmisores

M4 (x16)

17

A

A

Diagramas de conexión

Los elementos que no se enumeran en Introducción > Contenido de la caja se venden por separado.

Ejemplo 1 – Configuración monocanal

Para enviar señales mono del transmisor Stealth Wireless a un solo receptor:

1. Conecte la salida principal de su mezclador a una entrada del transmisor Stealth Pro y conecte

la salida del receptor a la entrada de su altavoz. Mantenga todos los controles de volumen del
mezclador y ajuste del transmisor en sus valores mínimos.

Nota: Con el transmisor se ajusta a mono, cualquier entrada se puede transmitir en ambos
canales. Esto le permite ajustar los niveles de la señal que se envía a zonas separadas, por
ejemplo.

2. Encienda el transmisor y el receptor del Stealth Pro. Ajuste sus canales a números

coincidentes. Consulte las instrucciones sobre el uso de la función de sincronización
automática en la sección Funcionamiento para más información.

3. Ajuste las antenas del transmisor y el receptor a una posición vertical para lograr los mejores

resultados en la transmisión de la señal inalámbrica. Si la calidad de la señal inalámbrica es
pobre, cambie la posición de las antenas.

4. Configure el transmisor a mono y adjuste el control de ajuste para obtener una señal intensa sin

recorte.

5. Encienda el altavoz, ajuste el nivel de salida de su mezclador y ajuste los controles de ajuste del

transmisor para oír la señal de audio. Si oye ruido en la señal, cambie a un canal diferente hasta
que oiga una señal limpia. Consulte las instrucciones para el cambio de la frecuencia de RF en
la sección Funcionamiento para más información.

Receptor

limentación

limentación

Transmisor

Altavoz

alimentado

Mezclador

18

A

A

A

Ejemplo 2 – Configuración de doble canal

Para enviar señales estéreo del transmisor Stealth Wireless a dos receptores:

1. Conecte la salida principal de su mezclador a una entrada del transmisor Stealth Pro y conecte

la salida del receptor a la entrada de su altavoz. Mantenga todos los controles de volumen del
mezclador y ajuste del transmisor en sus valores mínimos.

2. Encienda el transmisor y los receptores del Stealth Pro. Ajuste sus canales a números

coincidentes. Consulte las instrucciones sobre el uso de la función de sincronización
automática en la sección Funcionamiento para más información.

3. Ajuste las antenas del transmisor y el receptor a una posición vertical para lograr los mejores

resultados en la transmisión de la señal inalámbrica. Si la calidad de la señal inalámbrica es
pobre, cambie la posición de las antenas.

4. Configure el transmisor a stereo y adjuste los controles de ajuste para obtener una señal

intensa sin recorte.

5. Encienda el altavoz, ajuste el nivel de salida de su mezclador y ajuste los controles de ajuste del

transmisor para oír la señal de audio. Si oye ruido en la señal, cambie a un canal diferente hasta
que oiga una señal limpia. Consulte las instrucciones para el cambio de la frecuencia de RF en
la sección Funcionamiento para más información.

Receptor

limentación

Altavoz alimentado

Receptor

limentación

limentación

Transmisor

Altavoz alimentado

Mezclador

19

Funcionamiento

Para instalar y utilizar su Stealth Pro, siga los pasos en este capítulo en orden. Si está instalando un
sistema con múltiples receptores, instale cada receptor de a uno a la vez y mantenga cada receptor
encendido a medida que instala los otros.

Preparación del receptor

Selección de frecuencia

1. Utilice el cable mini XLR a XLR incluido para conectar la salida de audio del receptor a su
altavoz.

2. Utilice el adaptador de corriente incluido para conectar el conector de corriente del receptor a
su fuente de corriente. El receptor se encenderá automáticamente.

3. Ajuste el canal del receptor mediante uno de los siguientes métodos:

• Cómo seleccionar una frecuencia de forma automática:

i. Pulse el botón Scan (explorar) para explorar de forma automática el siguiente canal de

RF disponible. El canal parpadeará en la pantalla y el medidor de RF mostrará el nivel
de congestión de RF para cada canal explorado en tiempo real.

Para salir de la selección de frecuencia automática en cualquier momento durante el
proceso de exploración, pulse el botón Freq. Pulse los botones L/R, Delay (retardo) o
SQ para salir del modo de exploración y entrar ese modo respectivo. El receptor
regresará a la última frecuencia seleccionada.

ii. Una vez que el receptor encuentre el siguiente canal disponible con un nivel de

congestión de RF aceptable, permanecerá en ese canal y hará parpadear
continuamente el número del canal en la pantalla. Durante este período usted puede
probar el canal seleccionado.

iii. Si necesita seguir explorando hasta encontrar una frecuencia diferente disponible, pulse

los botones subir/bajar mientras el canal esté parpadeando para seguir buscando el
siguiente canal disponible en esa dirección.

iv. Pulse el botón Scan para seleccionar la frecuencia explorada

automáticamente y entrar al modo de transmisión. El indicador
de RF en la pantalla parpadeará, indicando que la frecuencia
seleccionada se está transmitiendo hacia el transmisor a
través de la frecuencia de 2,4 GHz (ver imagen).

Si el botón Scan no se pulsa tras 5 minutos, el receptor saldrá del modo de exploración
y volverá a la frecuencia anteriormente seleccionada.

v. Una vez que el transmisor se ha sincronizado con el receptor (consulte Preparación del

transmisor más abajo), el receptor dejará de transmitir automáticamente por la

frecuencia seleccionada y el indicador de RF dejará de parpadear. Puede salir del modo
de transmisión pulsando el botón Scan para regresar al funcionamiento normal, o pulsar
los botones L/R, Delay o SQ para salir del modo de transmisión y entrar a la función
seleccionada.

20