Extron SM 28 User manual

Brand: Extron

Model: SM 28

Category: Car speakers

Type: User manual

Extron SM 28 is a two-way surface mount speaker with 8-inch woofer and 1.1-inch tweeter. It features a concealed wall mounting system with a separate mounting plate and can be attached directly to a wall. The SM 28 has a patent-pending design and comes with a security key for locking and unlocking the speaker. It also has a tap selector switch for adjusting the speaker's volume. The SM 28 is ideal for a variety of applications, including classrooms, conference rooms, and home theaters.

User Guide

SM 28

Speakers

SpeedMount

Surface Mount Speakers

68-2165-01 Rev. A

07 15

Safety Instructions

Safety Instructions • English

WARNING: This symbol, , when used on the product, is intended to

alert the user of the presence of uninsulated dangerous voltage within the

product’s enclosure that may present a risk of electric shock.

ATTENTION: This symbol, , when used on the product, is intended

to alert the user of important operating and maintenance (servicing)

instructions in the literature provided with the equipment.

For information on safety guidelines, regulatory compliances, EMI/EMF

compatibility, accessibility, and related topics, see the Extron Safety and

Regulatory Compliance Guide, part number 68-290-01, on the Extron website,

www.extron.com.

Instructions de sécurité • Français

AVERTISSEMENT : Ce pictogramme, , lorsqu’il est utilisé sur le

produit, signale à l’utilisateur la présence à l’intérieur du boîtier du produit

d’une tension électrique dangereuse susceptible de provoquer un choc

électrique.

ATTENTION : Ce pictogramme, , lorsqu’il est utilisé sur le produit, signale

à l’utilisateur des instructions d’utilisation ou de maintenance importantes

qui se trouvent dans la documentation fournie avec le matériel.

Pour en savoir plus sur les règles de sécurité, la conformité à la réglementation,

la compatibilité EMI/EMF, l’accessibilité, et autres sujets connexes, lisez les

informations de sécurité et de conformité Extron, réf. 68-290-01, sur le site

Extron, www.extron.com.

Sicherheitsanweisungen • Deutsch

WARNUNG: Dieses Symbol auf dem Produkt soll den Benutzer darauf

aufmerksam machen, dass im Inneren des Gehäuses dieses Produktes

gefährliche Spannungen herrschen, die nicht isoliert sind und die einen

elektrischen Schlag verursachen können.

VORSICHT: Dieses Symbol auf dem Produkt soll dem Benutzer in der

im Lieferumfang enthaltenen Dokumentation besonders wichtige Hinweise

zur Bedienung und Wartung (Instandhaltung) geben.

Weitere Informationen über die Sicherheitsrichtlinien, Produkthandhabung,

EMI/EMF-Kompatibilität, Zugänglichkeit und verwandte Themen finden Sie in

den Extron-Richtlinien für Sicherheit und Handhabung (Artikelnummer

68-290-01) auf der Extron-Website, www.extron.com.

Instrucciones de seguridad • Español

ADVERTENCIA: Este símbolo, , cuando se utiliza en el producto,

avisa al usuario de la presencia de voltaje peligroso sin aislar dentro del

producto, lo que puede representar un riesgo de descarga eléctrica.

ATENCIÓN: Este símbolo, , cuando se utiliza en el producto, avisa

al usuario de la presencia de importantes instrucciones de uso y

mantenimiento recogidas en la documentación proporcionada con el

equipo.

Para obtener información sobre directrices de seguridad, cumplimiento

de normativas, compatibilidad electromagnética, accesibilidad y temas

relacionados, consulte la Guía de cumplimiento de normativas y seguridad de

Extron, referencia 68-290-01, en el sitio Web de Extron, www.extron.com.

Инструкция по технике безопасности • Русский

ПРЕДУПРЕЖДЕНИЕ: Данный символ, , если указан

на продукте, предупреждает пользователя о наличии

неизолированного опасного напряжения внутри корпуса

продукта, которое может привести к поражению

электрическим током.

ВНИМАНИЕ: Данный символ, , если указан на продукте,

предупреждает пользователя о наличии важных инструкций

по эксплуатации и обслуживанию в руководстве,

прилагаемом к данному оборудованию.

Для получения информации о правилах техники безопасности,

соблюдении нормативных требований, электромагнитной

совместимости (ЭМП/ЭДС), возможности доступа и других

вопросах см. руководство по безопасности и соблюдению

нормативных требований Extron на сайте Extron: www.extron.com,

номер по каталогу - 68-290-01.

安全说明 • 简体中文

警告：产品上的这个标志意在警告用户该产品机壳内有暴露的危险电压，

有触电危险。

注意：产品上的这个标志意在提示用户设备随附的用户手册中有

重要的操作和维护(维修）说明。

关于我们产品的安全指南、遵循的规范、EMI/EMF 的兼容性、无障碍

使用的特性等相关内容，敬请访问 Extron 网站 www.extron.com，参见

Extron 安全规范指南，产品编号 68-290-01。

安全記事 • 繁體中文

警告: 若產品上使用此符號，是為了提醒使用者，產品機殼內存在著

可能會導致觸電之風險的未絕緣危險電壓。

注意: 若產品上使用此符號，是為了提醒使用者，設備隨附的用戶手冊中有重

要的操作和維護（維修）説明。

有關安全性指導方針、法規遵守、EMI/EMF 相容性、存取範圍和相關主題的詳細資

訊，請瀏覽 Extron 網站：www.extron.com，然後參閱《Extron 安全性與法規

遵守手冊》，準則編號 68-290-01。

安全上のご注意 • 日本語

警告: この記号が製品上に表示されている場合は、筐体内に絶縁されて

いない高電圧が流れ、感電の危険があることを示しています。

注意: この記号が製品上に表示されている場合は、本機の取扱説明書

に記載されている重要な操作と保守(整備)の指示についてユーザーの

注意を喚起するものです。

安全上のご注意、法規厳守、EMI/EMF適合性、その他の関連項目に

ついては、エクストロンのウェブサイト www.extron.com より『 Extron Safety

and Regulatory Compliance Guide』 (P/N 68-290-01) をご覧ください。

안전 지침 • 한국어

경고: 이 기호 가 제품에 사용될 경우, 제품의 인클로저 내에 있는

접지되지 않은 위험한 전류로 인해 사용자가 감전될 위험이 있음을

경고합니다.

주의: 이 기호 가 제품에 사용될 경우, 장비와 함께 제공된 책자에 나와

있는 주요 운영 및 유지보수(정비) 지침을 경고합니다.

안전 가이드라인, 규제 준수, EMI/EMF 호환성, 접근성, 그리고 관련 항목에

대한 자세한 내용은 Extron 웹 사이트(www.extron.com)의 Extron 안전 및

규제 준수 안내서, 68-290-01 조항을 참조하십시오.

FCC Class B Notice

This equipment has been tested and found to comply with the limits for a

ClassB digital device, pursuant to part15 of the FCC rules. These limits provide

reasonable protection against harmful interference in a residential installation. This

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

and used in accordance with the instructions, may cause harmful interference to radio

communications. There is no guarantee that interference will not occur. If this equipment

does cause interference to radio or television reception, which can be determined by turning

the equipment off and on, you are encouraged to try to correct the interference by one or

more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

NOTE: For more information on safety guidelines, regulatory compliances,

EMI/EMF compatibility, accessibility, and related topics, see the “Extron Safety and

Regulatory Compliance Guide” on the Extron website.

Trademarks

All trademarks mentioned in this guide are the properties of their respective owners.

The following registered trademarks

, registered service marks

(SM)

, and trademarks

(TM)

are the property of

RGBSystems, Inc. or Extron Electronics:

Registered Trademarks

(®)

AVTrac, Cable Cubby, CrossPoint, eBUS, EDID Manager, EDID Minder, Extron, Flat Field, FlexOS, Global Configurator, GlobalViewer, Hideaway,

Inline, IPIntercom, IPLink, KeyMinder, LockIt, MediaLink, PlenumVault, PoleVault, PowerCage, PURE3, Quantum, SoundField, SpeedMount,

SpeedSwitch, SystemINTEGRATOR, TeamWork, TouchLink, V-Lock, VersaTools, VN-Matrix, VoiceLift, WallVault, WindoWall, XTP, and XTP

Systems

Registered Service Mark

(SM)

: S3 Service Support Solutions

Trademarks

(

™

)

AAP, AFL (Accu-RateFrameLock), ADSP(Advanced Digital Sync Processing), Auto-Image, CableCover, DRS(ClassDRippleSuppression),

DDSP (Digital Display Sync Processing), DMI (DynamicMotionInterpolation), DriverConfigurator, DSPConfigurator, DSVP(Digital Sync

Validation Processing), DTP. eLink, EQIP, FastBite, FOX, FOXBOX, IP Intercom HelpDesk, LinkLicense, MAAP, MicroDigital, NetPA, ProDSP,

QS-FPC(QuickSwitch Front Panel Controller), Room Agent, Scope-Trigger, ShareLink, SIS, Simple Instruction Set, Skew-Free, SpeedNav,

Triple-Action Switching, True4K, Vector, Webshare, XTRA, ZipCaddy, ZipClip

Conventions Used in this Guide

Notifications

The following notifications are used in this guide:

WARNING: Potential risk of severe injury or death.

AVERTISSEMENT : Risque potentiel de blessure grave ou de mort.

ATTENTION:

• Risk of property damage.

• Risque de dommages matériels.

NOTE: A note draws attention to important information.

Specifications Availability

Product specifications are available on the Extron website, www.extron.com.

Extron Glossary of Terms

A glossary of terms is available at http://www.extron.com/technology/glossary.aspx.

SM 28 Surface Mount Speaker • Contents v

Contents

Introduction .................................................... 1

About this Guide ................................................. 1

About the SM 28 Surface Mount Speaker .......... 1

Features ............................................................. 2

Application Diagram ........................................... 3

Installation ...................................................... 4

Installing the Speaker Mounting Plate ................. 5

Mounting to a Wall Stud ..................................... 6

Mounting the SM 28 Using the Yoke Mount

Kit ................................................................... 11

Attaching a Secondary Support Cable .............. 11

Attaching the Speaker to the Mounting Plate .... 12

Setting the Tap Selector Switch (SM 28T

Model Only) ..................................................... 13

Using the Security Key to Lock and Unlock

the Speaker ..................................................... 14

Removing the Speaker from the Mounting

Plate ................................................................ 15

Contents

SM 28 Surface Mount Speaker • Contents vi

SM 28 Surface Mount Speaker • Introduction 1

Introduction

This section gives an overview of the Extron SM 28 SpeedMount Surface Mount Speaker.

Topics include:

• About this Guide

• About the SM 28 Surface Mount Speaker

• Features

• Application Diagram

About this Guide

This guide describes the Extron SM 28 surface mount speaker and discusses how to install,

conﬁgure, and operate it.

In this guide, the terms “SM 28” and “speaker” refer to the SM 28 surface mount speaker.

About the SM 28 Surface Mount Speaker

The Extron SM 28 SpeedMount Surface Mount Speaker is a two-way speaker with a

patent-pending, concealed wall mounting system. It features an 8-inch (20.3 cm) woofer

with dual tuned ports and a 1.1-inch (2.8 cm) tweeter. Speaker mounting incorporates a

separate mounting plate that can be attached directly to a wall. The speaker wiring attaches

to the mounting plate so that the speaker can easily slide into the mounting plate, making

electrical contact between the plate and the contacts on the speaker. A built-in locking

mechanism between the speaker and the mounting plate also prevents the speaker from

being removed by unauthorized personnel. A release on the speaker bafﬂe allows for

quick removal from the mount. The release is lockable and hidden, and together with the

concealed speaker wiring contacts, helps to deter theft.

SM 28 Surface Mount Speaker • Introduction 2

Features

• SM 28 and SM 28T — The SM 28 is available as an 8 ohm model, and an SM 28T

version which can operate in 8 ohm direct as well as 70 volt and 100 volt modes.

• Six-position power tap selector — The SM 28T features a six-position power tap

selector for up to 64 watts, which can conveniently be accessed through the grille from

outside the speaker.

• Patent pending, concealed mounting system — One installation step connects the

speaker to the wiring contacts, and secures it into place.

• Include 0° mounting plate and 10° mounting adapter — Four position 10°

mounting adapter attaches to 0° mounting plate, and provides flexibility for vertical or

horizontal speaker installation with 10° of tilt downward, upward, left, or right.

• Designed to accommodate division-of-labor installations and save costs

• 1.1-inch (2.8 cm) silk dome tweeter

• 8" (20.3 cm) long-throw woofer with dual tuned bass reflex ports

• Two versions available for low impedance or 70/100 volt systems:

• 8 ohm direct operation only

• 8 ohm direct and 70/100 volt operation

• Convenient six-position, through-the-grille power tap selector on the SM 28T:

• 8 ohm direct

• 70 volt: 64, 32, 16, and 8 watt selectable

• 100 volt: 64, 32, and 16 watt selectable

• Off

• Optional yoke mount allows 180° of speaker pivot in 10° detented steps

• Frequency range: 59 Hz to 22 kHz

• 90 watts continuous pink noise, 180 watts continuous program

• Internal driver overload protection

• Hidden locking speaker release mechanism

• Mounting plate provides cable raceway access for surface-mounted wiring

applications

• Black or white high-impact enclosure

• Dimensions with 0° mounting plate: 16.5" H x 11.5" W x 7.8" D (41.91 cm H x

29.21 cm W x 19.81 cm D)

• 5 year parts and labor warranty

SM 28 Surface Mount Speaker • Introduction 3

100-240V ~ 50/60 Hz

-- A MAX

CONFIGURABLE

HDMI

IN1606

HDMI

INPUTS OUTPUTS AUDIO INPUTS OUTPUTS REMOTE

L 1

L 2

L 3

L 4

L 5

+48V

1 2

L R

VARIABLE

Tx Rx

RS-232

LAN

RESET

MIC/LINE

L 6

100-240V 0.5A, 50-60Hz

XPA 1002 Plus

LIMITER/PROTECT

SIGNAL

∞

ATTENUATION

8Ω / 4Ω OUTPUTS

REMOTE

INPUTS

CLASS 2 WIRING

GCV

10V 50mA

STANDBY

POWER

12V

x.xA MAX

Tx Rx RTS CTS

COM 1

Tx Rx

COM 2

COM 3

S G

IR/SERIAL

RELAYS

1 2 C

3 4 C

1 2 3 4 G

DIGITAL I/O

PWR OUT = 6W

eBUS

+V+ S

-S

LAN

1 2 3

IPCP PRO 350

Extron

Help

System

Off

Display

Room

Control

Off

Mute

Screen

Lighting

December 15, 2013 - 7:58 AM

Audio

Control

Volume

Mute

Tuner

1 2 3

VCR

Laptop

DVD

Doc

Cam

Tuner

Channel

Last

Presets

Enter

ETV

Ethernet

RS-232

Ethernet/PoE

Extron

IN1606

Scaling Presentation

Switcher

TCP/IP

Network

Display with Speakers

Microphones

1 and 2

Blu-ray

Laptop

VGA

Audio

Extron

XPA 1002 Plus

Power Amplier

Extron

SM 28

Surface Mount

Speakers

S-video

HDMI

HDMI with

Embedded Audio

HDMI with

Embedded

Audio

HDMI with

Embedded

Audio

Document

Camera

DisplayPort

to HDMI

Adapter

Extron

TLP Pro 720T

7" Tabletop

TouchLink Pro

Touchpanel

Extron

IPCP Pro 350

IP Link Pro

Control Processor

Application Diagram

The following diagram shows an example of how the SM 28 surface mount speakers can be

connected.

Figure 1. Application Diagram for the SM 28 Surface Mount Speakers

SM 28 Surface Mount Speaker • Installation 44

Installation

NOTE: Unless otherwise stated, mounting hardware is not included.

This section describes the installation and setup of the SM 28 surface mount speaker.

Topics include:

• Installating the Speaker Mounting Plate

• Mounting to a Wall Stud

• Yoke Mounting the SM 28

• Attaching a Secondary Support Cable

• Attaching the Speaker to the Mounting Plate

• Setting the Tap Selector Switch (SM 28T Model Only)

• Using the Security Key to Lock and Unlock the Speaker

• Removing the Speaker from the Mounting Plate

WARNING: All structural steps and electrical installation must be performed by qualiﬁed

personnel in accordance with local and national building codes and electrical

codes. Since applications can vary considerably, it is the responsibility of the

installer to exercise good judgment when selecting the mounting location, method,

and hardware. Extron is not responsible for damages resulting from the negligent

installation of any mount or speaker.

AVERTISSEMENT : Toute étape structurelle et installation électrique, doit être

effectuée par un personnel qualiﬁé, conformément aux codes du bâtiment, aux codes

incendie et sécurité, et aux codes électriques, locaux et nationaux. Étant donné

l’éventuelle variation importante des applications, il incombe à l’installateur d’agir avec

discernement lors de la sélection de l’emplacement, de la méthode et du matériel de

montage. Extron ne sera pas tenu responsable des éventuels dommages résultant de

la mauvaise installation des attaches de montage ou des enceintes.

SM 28 Surface Mount Speaker • Installation 5

Installing the Speaker Mounting Plate

The SM 28 speaker comes with a ﬂat mounting plate and an adapter for positioning the

speaker 10° up, down, left, or right.

• 0° mounting plate — The flat (0°) mounting plate allows the speaker to be mounted flat

on a suitable surface.

• 10° mounting adapter — The 10° mounting adapter allows the speaker to be installed

at a 10 degree angle so that the speaker can be pointed up, down, left, or right from an

elevated position by rotating the adapter.

0° Mounting Plate

10° Mounting Adapter

Figure 2. Mounting Adapter and Mounting Plate

The mounting plate can be installed vertically or horizontally, as shown below.

Catch Tab

Vertical Mounting

Figure 3. Positioning the Mounting Plate

NOTE: Observe all applicable building codes and local ordinances when installing the

speaker.

Horizontal Mounting

SM 28 Surface Mount Speaker • Installation 6

Mounting to a Wall Stud

NOTE: Mounting hardware not provided.

1. Locate the wall stud where the mounting plate will be installed.

2. If using the 10° mounting adapter, position the adapter to the wall stud according to how

the speaker will be angled and mark the positions of the pilot holes. See the figure below

for mounting hole locations.

Mounting

Holes

Figure 4. Mounting the Adapter

If not using the adapter, position the mounting plate against the wall. The #28 arrow

molded into the mounting plate indicates the vertical midpoint of the SM 28 speaker

when it is mounted on a wall stud. While positioning the mounting plate on the wall,

mark the location of two pilot holes using the holes indicated below.

33-0000-01 Rev. Ax1

–

LOOP

–

LOOP

SM28 Speaker

Stud

Mounting

Holes

Figure 5. Positioning the Mounting Plate

NOTE: A speaker wire access hole (see figure 6 on the next page, and figure 8

on page 8) must also be cut in the wall, so mark that hole location now with the

mounting plate positioned on the wall while ensuring that the wall stud does not

interfere with the wire routing and that the mounting plate hides the access hole.

3. Drill the mounting plate pilot holes and cut the speaker wire access hole, as previously

marked.

4. Install the speaker cables into the wall before installing the speaker mounting plate.

Leave enough slack in the cable.

5. The SM 28 can be mounted with or without the 10° mounting adapter. In either case,

the wiring of the quick connect contacts remains the same, but the wire routing will vary.

SM 28 Surface Mount Speaker • Installation 7

Routing the wires without the 10° mounting adapter

Route the speaker cable through the rear of the 0° mounting plate and attach the wire

ends to the quick connect contacts using a small screwdriver, as shown below. Be sure

to observe the correct polarity.

Quick Connect Contacts

Figure 6. Routing the Wires Without the Mounting Adapter

Red Wire (+) from Ampliﬁer

Black Wire (-) from Ampliﬁer

Red Wire (+) from

Ampliﬁer/Previous Speaker

Red Wire (+) to Next Speaker

Black Wire (-) from

Ampliﬁer/Previous Speaker

Black Wire (-) to Next Speaker

LOOPIN INLOOP

Number of Wires

per Connection Point

Maximum

Wire Gauge

1 12 AWG

2 16 AWG

4 18 AWG

Wire Gauge Table

Loop-through Connection

Single speaker Connection

Figure 7. Wiring the Connectors

Number of Wires

per Connection Point

Maximum

Wire Gauge

1 12 AWG

2 16 AWG

4 18 AWG

Wire Gauge Table

SM 28 Surface Mount Speaker • Installation 8

Routing the wires with the 10° mounting adapter

Route the speaker cable through the 10° mounting adapter and the 0° mounting plate,

and attach the adapter to the 0° mounting plate using the four included screws and

washers, as shown below. Then, attach the wire ends to the quick connect contacts

using a small screwdriver, as shown below.

10° Mounting

Adapter

0° MountingPlate

(4) 4-40 x 3/16"

Screws

Quick Connect Contacts

Figure 8. Routing Wires Through the Adapter and Plate

NOTE: If surface mounting, route wires through alternate access points.

0° Mounting Plate

Alternate Access Point

Alternate Access Points

10° Mounting Adapter

33-0000-01 Rev. Ax1

–

LOOP

–

LOOP

Figure 9. Routing Wires Through Alternate Access Points

Page is loading ...

SM 28 Surface Mount Speaker • Installation 10

Figure 11. Attaching the Mounting Plate to the Wall

Mounting Scr

ews

SM 28 Surface Mount Speaker • Installation 11

Mounting the SM 28 Using the Yoke Mount Kit

The SM 28 can be mounted using the optional yoke mount kit. Refer to the Yoke Mount Kit

Setup Guide for installation details.

Attaching a Secondary Support Cable

If a secondary support cable is being attached, attach the cable to the eye bolt, as shown

below. The cable end should be properly swaged.

Secondary

Attachment

Cable

Anchor this end to a

suitable secure point.

ttach cable here

and secure.

Figure 12. Attaching the Support Cable

NOTE: Attach the secondary support cable before attaching the 0° mounting plate.

SM 28 Surface Mount Speaker • Installation 12

Attaching the Speaker to the Mounting Plate

ATTENTION:

• By default, the SM 28 speaker is shipped unlocked. When mounting the speaker

to the mounting plate, be sure that the speaker is unlocked. Failure to place

the speaker in the unlocked position will result in damage to the speaker lock

mechanism should an attempt be made to mount a locked speaker (see “Using

the Security Key to Lock and Unlock the Speaker” on page 14).

• Par défaut, l’enceinte SM 28 est livrée en mode déverrouillé. Lors du montage de

l’enceinte sur la plaque de montage, assurez-vous que l’enceinte soit déverrouillée.

Si elle n’est pas déverrouillée avant son montage sur la plaque, elle pourrait subir

des dommages au niveau de son mécanisme de verrouillage (voir « Utiliser la clé de

sécurité pour le verrouillage et le déverrouillage de l’enceinte »).

NOTE: If the secondary attachment point is being used, see the “Attaching a

Secondary Support Cable” on the previous page for installation details before

proceeding further.

Position the rear mounting slot of the speaker above the catch tab of the mounting plate,

then slide the speaker down into the mounting plate until a click is heard indicating that

the speaker is secured in place (see ﬁgure below). When properly seated, the speaker

connections are automatically made.

Catch Tab

Vertical Mounting

Figure 13. Attaching the Speaker to the Mounting Plate

SM 28 Surface Mount Speaker • Installation 13

Setting the Tap Selector Switch (SM 28T Model Only)

For the SM 28T model, insert a small screwdriver through the upper left portion of the front

grille, as shown below, to adjust the tap selector switch to the desired setting.

8Ω

100

8Ω

Tap Indicator

for 70 volt

Tap Indicator

for 100 volt

Figure 14. Setting the Tap Selector Switch

70V 64 W 32 W 16 W 8 W OFF 8Ω

100V • 64 W 32 W 16 W OFF 8Ω

SM 28 Surface Mount Speaker • Installation 14

Using the Security Key to Lock and Unlock the Speaker

Insert the key into the center of the speaker grille and turn the key, as needed, so that

the speaker is in the unlocked position (see the ﬁgure below). There are three small raised

“dimples” (see the ﬁgure on the next page) on the grille surface that surrounds the keyhole.

Repeat this procedure, but set the key to the locked position to lock the speaker.

ATTENTION:

• The key must be rotated to the unlocked position before the speaker is attached to

the mounting plate. Failure to place the speaker in the unlocked position will result

in damage to the speaker lock mechanism should an attempt be made to mount

the speaker. By default, the SM 28 speaker is shipped unlocked.

• La clé doit être basculée en mode déverrouillé avant le rattachement de l’enceinte

à la plaque de montage. Si l’enceinte n’est pas placée en mode déverrouillé, elle

pourrait subir des dommages au niveau de son mécanisme de verrouillage lors

de son montage sur plaque. Par défaut, l’enceinte SM 28 est livrée en mode

déverrouillé.

Unlocked

Figure 15. Unlocking the Speaker

Twist to

Lock/Unlock

Unlocked

Locked

Figure 16. Using the Security Key to Lock and Unlock the Speaker

SM 28 Surface Mount Speaker • Installation 15

Removing the Speaker from the Mounting Plate

To remove the speaker from the mounting plate, you must unlatch the locking mechanism.

1. Insert the security key into the keyhole of the speaker grille (see the previous

section) and turn the key to the unlock position.

2. Remove the security key.

3. Apply pressure to the grille with your finger over the “dimpled” keyhole to

unlatch the speaker from the mounting plate while lifting up on the speaker

(see figure below).

Press to Release

Figure 17. Removing the Speaker from the Mounting Plate

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Extron SM 28 User manual

Brand: Extron

Model: SM 28

Category: Car speakers

Type: User manual

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Extron SM 28 User manual

Extron SM 28 User manual

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