SMART Audio 400 User Manual

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SMARTAudio 400

classroom amplification system

USER’S GUIDE

FOR SCA-400

Important information

Federal Communication Commission interference statement

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two

conditions:

1. This device may not cause harmful interference, and

2. this device must accept any interference received, including interference that may cause

undesired operation.

This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a commercial environment. This

equipment generates, uses, and can radiate radio frequency energy and, if not installed and used

in accordance with the instruction manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential area is likely to cause harmful

interference in which case the user will be required to correct the interference at his own expense.

Radiation Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled

environment. This equipment should be installed and operated with minimum distance of 20 cm

between the radiator and your body. This transmitter must not be co-located or operated in

conjunction with any other antenna or transmitter.

Trademark no tice

SMARTBoard , s marttech, the SMART logo and all SMART tagli nes are trade marks or re giste red trademarks of SMARTT echnolog iesU LC in the U.S. and/or other
countries. All third -party pr oduct and company names may b e trademarks o f their res pective owner s.

Copyrigh t n otice

© 20 17SMARTTechnolo gies ULC. All rights rese rved . N o part of this publication may b e repr oduced , transmitted, transcrib ed, store d in a re trieval system or
translated into any language in any form by any means without the p rio r w ritten conse nt of S MARTT echnologi esULC. Information i n this manual is subje ct to change
without notice and d oe s not repr ese nt a commitmento n the p art o f SMART.

This prod uct and/or use there of is cove red by one or more of the fo llowing U.S. patents:

www.smarttech.com/patents

05-2017

smar ttech.com/kb/171144

Contents

Important information 2

Introduction 4

Using the teacher microphone 4

Using the student microphone 7

Using the SMARTAudio 400 receiver 9

Using input devices 11

Maintaining the microphones 12

Pairing the microphones 12

Troubleshooting SMARTAudio 400 13

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SMARTAUDIO 400

Introduction

The SMARTAudio 400 classroom amplification system provides high-quality audio amplification

for classrooms. SMARTAudio is the control center for the wireless microphone and speakers. The

system comes with a teacher microphone and optional student microphone. The receiver receives

audio signals and translates them into crystal-clear sound through the speakers. A variety speaker

options are available, including wall mounted speakers (SBA-150) and ceiling mounted speakers

(SBA-150c).

Using the teacher microphone

Control the input device’s volume directly from the teacher microphone. The teacher microphone

is ideal for large spaces. For more information see Acoustics in the SMART installation standards

(smarttech.com/kb/171035).

About the Teacher microphone

No. Function Description

1 OTHER LEDindicates that the volume buttons control the student

microphone.

2 LINE LEDindicates that the volume buttons control the auxiliary

audio source.

3 CHG LEDindicates charging status. See Charging the microphone

on page12.

4 UP and DOWN buttons Controls volume for the selected audio source.

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No. Function Description

5 REC LEDindicates that the microphone is paired with the receiver.

6 PWR/ MUTE button

Turns on microphone

l

Mutes microphone

l

7 SELECTbutton Selects an audio source.

8 BATT LEDindicates battery charge level. See About the teacher

microphone LEDs below.

9 OWN LED indicates that the volume buttons control the teacher’s

microphone.

10 Microphone [N/A]

11 MICIN Connect an external microphone (for example, a lapel or

headset microphone). This mutes the internal microphone on
the teacher microphone.

12 Mini USBA receptacle Connects the USB power cable to charge the microphone.

13 AUDIOIN Connects an external audio device using a a 3.5 mm audio

cable.

About the teacher microphone LEDs

The BATT and CHG LEDs provide status and troubleshooting information for the teacher

microphone.

BATT LED status Description

Solid green Microphone is on.

Flashing green or flashing

Pairing with receiver or microphone is muted.

orange

Solid yellow Battery is low.

Flashing yellow Microphone is out of range of the receiver.

Solid red Battery is depleted.

Flashing red Pairing error. See Resolving issues with the microphones on

page13.

CHG LED status Description

Solid

Flashing

Flashing rapidly

Battery has finished charging.

Battery is charging.

There has been a charging error.

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SMARTAUDIO 400

Using the teacher microphone

TIP

l Wear the microphone 4–6" (10–15 cm) below your chin.

l Charge the microphone every night.

l Speak at a normal conversational volume.

l Don’t turn up the speaker volume too high. If you can hear your voice, it’s too loud. Have

another adult in the room help you set the volume.

To turn the teacher microphone on

NOTE

l The power on sequence occurs within 5 seconds

l There isn’t an audible beep when you turn on the microphone.

1. Press and hold the PWR/MUTE button for at least three seconds.

2. BATT LED briefly lights green.

3. BATT LED flashes orange while the microphone pairs.

4. TheBATT LED lights solid green.

To turn the teacher microphone off

Press and hold the PWR/MUTE button for at least three seconds.

To mute the teacher microphone

Press the PWR/MUTE button.

If the microphone is muted for more than five minutes, the microphone turns off to conserve

battery.

To adjust the volume of the teacher microphone

1. Press the SELECT button until the OWNLED is lit.

2. Use the UP or DOWN buttons to adjust the volume.

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To adjust the volume of the student microphone from the teacher microphone

1. On the teacher microphone, press the SELECT button until the OTHERLED is lit.

2. Use the UP or DOWN buttons to adjust the volume.

Using the student microphone

The student microphone encourages student participation and facilitates communication between

students and between students and the teacher.

About the student microphone

No. Function Description

1 CHG LEDindicates charging status. See About the student

microphone LEDs on the next page.

2 BATT LED indicates the battery charge level. See About the

student microphone LEDs on the next page.

3 TALK button Turns the microphone on while the button is pressed.

4 TALK switch Turns the microphone on.

5 PWR/LINK button Press this button to initiate pairing with the receiver.

6 3.5 mm receptacle Connects an external audio device using a a 3.5 mm

audio cable.

7 Mini USBA receptacle Connects the USB power cable to charge the

microphone.

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About the student microphone LEDs

The BATTand CHGLEDs provide status and troubleshooting information for the student

microphone.

BATT LED status Description

Solid green Microphone is on.

Flashing green or flashing
orange

Solid yellow Battery is low.

Flashing yellow Microphone is out of range of the receiver.

Solid red Battery is depleted.

Flashing red Pairing error. See Resolving issues with the microphones on

CHG LED status Description

Solid

Flashing

Flashing rapidly

Pairing with receiver or microphone is muted.

page13.

Battery has finished charging.

Battery is charging.

There has been a charging error.

Using the student microphone

To turn the student microphone on or off

1. Press and hold the TALK button or slide the switch until the BATT LED briefly lights green.

2. BATT LED flashes orange while the microphone pairs.

3. TheBATT LED lights solid green.

To turn the student microphone off

Slide the switch down.

To use the microphone

Press and hold the TALK button while talking.

OR

Slide the switch up to keep the microphone on.

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To adjust the volume of the student microphone

1. On the teacher microphone, press the SELECT button until the OTHERLED is lit.

2. Use the UP or DOWN buttons to adjust the volume.

Using the SMARTAudio 400 receiver

The receiver for the SMARTAudio 400 classroom amplification system receives an audio signal

and transmits it to the speakers. Pairing the microphones and the receiver is easy, and the receiver

doesn’t allow unpaired microphone audio to bleed into the speaker system. The LEDs make it

easy to tell at a glance if microphones are properly connected.

About the receiver

No. Function Description

1 MIC1 LED indicates that a microphone is paired.

2 POWER LED indicates the power status.

3 MIC2 LEDindicates that another microphone is paired.

4 LINK LED indicates the pairing status.

5 Link button Press the Link button to pair the receiver with the

microphones. See Pairing the microphones on page12
for more information.

6 Dip switches See Troubleshooting SMARTAudio 400 on page13 for

more information.

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No. Function Description

7 LINEIN L/R Connects an interactive display or interactive flat panel

using a stereo 3.5 mm cable. See Connecting a

SMARTBoard interactive display or SMARTBoard
interactive flat panel to the receiver on the facing page

for more information.

8 Power Connects the power cable.

9 Speaker Connects the wall speaker or ceiling speakers to the

receiver.

Receiver LED status

MIC 1 LED status Description

Solid green Microphone is activated on that channel.

Solid orange Feedback blocker is on.

NOTE

To turn off the feedback blocker, turn dip switch 5 off and turn
the receiver off and back on.

Solid red System error. Turn the microphone off and then back on to clear

the error.

POWER LED status Description

Solid green Receiver is on.

MIC 2 LED status Description

Solid green Microphone is activated on that channel.

Solid orange Feedback blocker is on.

Solid red System error. Turn the microphone off and then on to clear the

error.

LINK LED status Description

Solid green Microphone is paired with the receiver.

Flashing yellow Receiver is attempting to pair with a microphone.

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SMARTAUDIO 400

Connecting a SMARTBoard® interactive display or SMARTBoard
interactive flat panel to the receiver

To connect a SMARTBoard interactive display or SMARTBoard interactive flat panel to the

receiver

1. Using a 3.5 mm stereo cable, connect the cable to the receiver’s LINE INL/R port.

2. Connect the cable to the display or board. See the display’s installation and maintenance

guide or the board’s administrator’s guide for more information.

Using input devices

You can connect a mobile device, MP3 player or computer to SMARTAudio 400. Using a 3.5 mm

audio cable, connect your device to the AUDIO INreceptacle on the microphone or receiver.

Connecting a device to the teacher or student microphone

To connect a device to the teacher or student microphone

NOTE

Set the device’s volume to 80–90% of its maximum volume. Then use the volume controls on

the teacher or student microphone.

1. Using an audio cable that with 3.5 mm stereo plugs on both ends, connect the cable to the

AUDIO INreceptacle on the microphone.

2. Connect the cable to the headphone receptacle on the mobile device, MP3 player or

computer.

3. Use the volume control on the mobile device, MP3 player or computer to set the playback

volume.

OR

If the LINELED is lit, use the microphone’s volume controls to adjust the volume.

Adjusting the volume of input devices

1. On the teacher microphone, press the SELECT button until the LINELED is lit.

2. Use the UP or DOWN buttons to adjust the volume.

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SMARTAUDIO 400

Maintaining the microphones

The teacher and student microphones contain a rechargeable lithium-ion battery. Charge the

microphones every night and during the weekend.

Charging the microphone

To charge the teacher or student microphone

1. Connect the wall charging adapter to a power outlet.

2. Connect the USB cable to the adapter.

3. Connect the USB cable to the microphone.

4. The CHG LED flashes red while the microphone charges.

5. The CHG LED lights solid red when the microphone is fully charged.

Cleaning the microphone

To clean the teacher or student microphone

Spray skin-safe disinfectant on a cloth and use the cloth to clean the microphone.

CAUTION

l Make sure no cleaning liquid enters the microphone.

l Take care when wiping the silk screened labels.

Pairing the microphones

To check if the microphone is paired to the receiver, press the PWR/MUTE button for 1 second on

the microphone. If the BATT LED flashes green, the microphone is paired. If the BATT LED flashes

in another color, turn off the microphone and use the following instructions to pair the microphone

to the receiver.

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SMARTAUDIO 400

Pairing the teacher microphone

To pair the teacher microphone

1. If the teacher microphone is turned on, turn it off by pressing and holding the

PWR/MUTEbutton for three seconds.

2. On the receiver, press the LINK button. The LINK LED flashes yellow.

3. On the teacher microphone, press and hold the PWR/MUTE and REC buttons.

A beep is heard through the speakers.

The BATTLED on the microphone and the LINKLEDon the receiver light green.

Pairing the student microphone to the receiver

To pair the student microphone

1. If the student microphone is turned on, turn it off by sliding the TALK switch.

The BATT LED is unlit.

2. On the receiver, press the LINK button. The LINK LED flashes yellow.

3. On the student microphone, press and hold the PWR / LINK button and the TALK button.

A beep is heard through the speakers.

The BATTLED on the microphone and the LINKLEDon the receiver light green.

Troubleshooting SMARTAudio 400

Use the information below to troubleshoot your issues for the SMARTAudio 400 classroom

amplification system.

Resolving issues with the microphones

Issue Solutions

The microphone is turned on and
paired to the receiver, but MIC1 or
MIC2 LEDis not lit.

Check the pairing again. See Pairing the
microphones on the previous page.

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SMARTAUDIO 400

Issue Solutions

The BATTLED is flashing green or
orange.

Microphone is muted.

l

Unmute the microphone.

The microphone is pairing to a receiver.

l

Wait for the microphone to finish pairing with the
receiver.

The BATTLED is flashing yellow. Microphone is out of range of the receiver. Move

back into range.

The BATTLED is flashing red. There was a pairing error with the receiver. Try

pairing the microphone again. See Pairing the
microphones on page12.

Resolving issues with audio

Issue Solutions

All components are turned on and the
microphones are paired, but there is
no audio.

Check for audio from audio port first, and then from

l

mic port.

If the audio is working from both ports and but not
from the internal mic element, the microphone may
be defective. Contact SMART for a replacement.

Check the connection from the receiver to the

l

speakers. If the speakers are firmly and properly
connected and there is still no audio, contact SMART
regarding the receiver.

The audio is distorted

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If a device is connected to the teacher or student

l

microphone using the AUDIOINport, set the
device’s volume to 80–90% of its maximum volume.
Then use the volume controls on the teacher
microphone to adjust the volume.

Turn on dip switch 8 on the receiver.

l

Test the microphone from the malfunctioning system

l

with a properly functioning system. If the audio is still
distorted, contact SMARTregarding the
microphone.

Test a microphone from a properly functioning

l

system with the malfunctioning system. If the audio is
still distorted, contact SMART regarding the
receiver.

SMARTAUDIO 400

Issue Solutions

There is audio feedback.

NOTE

Feedback occurs when the
microphone picks up audio from
the speakers and transmits it to the
speaker again in a loop. Feedback
sounds like an intermittent high­pitched squealing or burst of
sound, and it can occur when you
stand in a particular spot (especially
if the microphone is very close to
the speakers) or randomly in a
room.

Feedback is distinct from a buzzing
or humming, which is a constant low
noise that doesn’t necessarily
change when the microphone used
or turned on or off.

There is an audible hum.

Volume is set incorrectly. Set the volume while

l

standing beneath the speaker with the microphone.

TIP

Have someone else in the room help determine if
the volume is not loud enough.

Do not stand directly beneath the speakers. This can

l

cause feedback.

TIP

Have someone else in the room help determine if
the volume is not loud enough.

Turn on dip switch 5 on the receiver. This will mute

l

your microphone if a feedback loop starts.

Verify that the cables are connected properly.

l

The speaker cables may be running parallel with

l

power lines.

Replace any input cables that might be too long or

l

are unshielded.

The speakers are making a crackling
sound.

Audio is interrupted

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The speakers and the receiver aren’t connected
properly.

o

If the crackling sound is coming from all the
speakers, check the connection at the back of
the receiver.

o

If the crackling sound is coming from only one
speaker, check the connection at the back of
the speaker.

Flip dip switch 8 on the receiver to boost the signal.

l

Remove metallic obstructions between the receiver

l

and the microphones.

SMARTAUDIO 400

Resolving issues with power

Issue Solutions

The receiver isn’t receiving power. l Test the outlet with a device known to be working

correctly.

Try a different outlet.

l

If neither solution resolves the issue, contact SMART.

l

Resolving issues with battery charging

Issue Solutions

The microphone isn’t charging.

Make sure the charging cable is inserted correctly in

l

the AC adapter and in the microphone.

l Make sure the cable is oriented correctly in the

microphone. The arrow should face out towards the

microphone.

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