Clear-Com KB-701 User Manual

CLEAR-COM ENCORE

KB-701 SPEAKER STATION

INSTRUCTION MANUAL

KB-701 Speaker Station Instruction Manual

Part Number: 810350Z Rev. 3

Legal Disclaimer

Copyright © 2013 HME Clear-Com Ltd.

All Rights Reserved

Clear-Com, the Clear-Com logo, and Clear-Com Concert are trademarks or registered trademarks of HM Electronics, Inc.
The software described in this document is furnished under a license agreement and may be used only in accordance with the
terms of the agreement.

The product described in this document is distributed under licenses restricting its use, copying, distribution, and decompilation/
reverse engineering. No part of this document may be reproduced in any form by any means without prior written authorization
of Clear-Com, an HME Company.

Clear-Com Offices are located in California, USA; Cambridge, UK; Montreal, Canada; and Beijing, China. Specific addresses
and contact information can be found on Clear-Com's corporate website:
www.clearcom.com

Clear-Com Contacts

Americas and Asia-Pacific Headquarters

California, United States
Tel: [phone]
Email: [e-mail]

Europe, Middle East, and Africa Headquarters

Cambridge, United Kingdom
Tel: [phone]
Email: [e-mail]

Canada Office

Quebec , Canada
Tel: [phone]

China Office

Beijing Representative Office
Beijing, P.R.China
Tel: [phone]

CONTENTS

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Internal Adjustments and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

KB-701 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . 4-1

KB-701 Speaker Station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

LIMITED WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . 5-I

Warranty Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-i

Technical Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-i

Warranty Repairs and Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-ii

Non-Warranty Repairs and Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-ii

Extended Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-ii

Service Contract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-iii

Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-iii

KB-701 SPEAKER STATION

i

ii

KB-701 SPEAKER STATION

Please read and follow

these instructions before

operating this product.

IMPORTANT SAFETY
INSTRUCTIONS

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.

9. Only use attachments/accessories specified by the manufacturer.

10. Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination to avoid injury from
tip-over.

11. Unplug this apparatus during lightning storms or when unused for long
periods of time.

12. Refer all servicing to qualified service personnel. Servicing is required
when the apparatus has been damaged in any way, such as power-supply
cord or plug is damaged, liquid has been spilled or objects have fallen into
the apparatus, the apparatus has been exposed to rain or moisture, does
not operate normally, or has been dropped.

13. WARNING: To reduce the risk of fire or electric shock, do not expose
this product to rain or moisture.

Please familiarize yourself with the safety symbols in Figure 1. When you
see these symbols on this product, they warn you of the potential danger
of electric shock if the station is used improperly. They also refer you to
important operating and maintenance instructions in the manual.

KB-701 SPEAKER STATION

iii

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

This symbol alerts you to the presence of uninsulated dangerous
voltage within the product's enclosure that might be of sufficient
magnitude to constitute a risk of electric shock. Do not open
the product's case.

This symbol informs you that important operating and main­tenance instructions are included in the literature accompanying
this product.

Figure 1: Safety Symbols

EMC AND SAFETY

The KB-701 station meets all relevant CE and FCC specifications set out
below:

EN55103-1 Electromagnetic compatibility. Product family standard for
audio, video, audio-visual, and entertainment lighting control apparatus
for professional use. Part 1: Emissions.

EN55103-2 Electromagnetic compatibility. Product family standard for
audio, video, audio-visual, and entertainment lighting control apparatus
for professional use. Part 2: Immunity.

And thereby compliance with the requirement of Electromagnetic
Compatibility Directive 2004/108/EC and Low Voltage Directive
2006/95/EC

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.

iv

KB-701 SPEAKER STATION

OPERATION

INTRODUCTION

Congratulations on choosing this Clear-Com product. Clear-Com was
established in 1968 and remains the market leader in providing intercoms for
entertainment, broadcast and industrial applications. The ruggedness and high
build-quality of Clear-Com products defines the industry standard. In fact,
many of our original beltpacks and main stations are still in daily use around
the world.

The KB-701 speaker station is a powerful, yet user-friendly unit that can serve
as a versatile intercom station. We recommend that you read through this
manual completely to better understand the functions of the KB-701. If you
encounter a situation or have a question that this manual does not address,
contact your dealer or call Clear-Com directly at the factory. Our applications
support and service people are standing by to assist you. (Refer to Chapter 5:
“Warranty” for contact information.) Thank you for selecting Clear-Com for
your communications needs.

DESCRIPTION

The Clear-Com KB-701 speaker station is designed for use in theatres, live
performances, industrial environments, and small television facilities. It
features speech intelligibility, even at high-noise levels, and can be
customized through its programmable options.

Local or remotely controlled talking or listening is selectable and allows
either hands-on or hands-free operation. The talk button operates in
momentary mode. The integral microphone and speaker offer half-duplex
communication. The KB-701 offers both visual and audible call signaling to
attract the attention of operators.

A balanced program input allows the monitoring of external audio through the
speaker. This program input can also be used as a paging function.

The integral speaker’s volume level can be adjusted using a front-panel knob.
An internal control allows setting a minimum speaker level. An automatic
speaker switching circuit will quiet the speaker when the talk button is
activated.

The KB-701 receives power from the Clear-Com intercom line. The unit
mounts either in a standard four-gang electrical outlet box or in an optional
Clear-Com V-Box. The extra-thick front panel and compact surface-mount
circuitry maintains Clear-Com ruggedness. The intercom channel connects to
a plug-on-screw terminal strip. Male and female three-pin XLR connectors
are provided on the optional V-Box to offer a through connection to the
intercom channel.

KB-701 SPEAKER STATION

1-1

Although the optional EB7-TW daughter board module allows this unit to

Call

Talk

Program Level

Mic

1

2

5

6

4

3

KB-701KB-701

1-Channel

Speaker Station

Volume

function on a TW line, the unit’s operation will remain single channel. Also,
the EB7-4W four-wire daughter board module is available to allow
long-distance connections using separate pairs of wires for send audio and
receive audio.

The KB-701 is compatible with all Clear-Com party-line intercoms.

OPERATION

Normal operation of the KB-701 speaker station only requires access to the
front-panel controls. The controls located elsewhere on the unit are intended
to be set-and-forget in nature. For intercom operation, set the volume control
to the desired level and press the talk button when talking.

FRONT PANEL

The controls and indicators on the KB-701 front panel are shown in Figure
1-1 and are described by the following text.

Figure 1-1: Front Panel

1. Talk Button: The talk button activates the microphone feed to the
intercom channel. The button activates when pressed and deactivates
when released.

The talk button lights amber when the microphone feed to the intercom
channel is on, whether activated locally by pressing the button, or acti­vated remotely from another station using the call signal.

The talk button lights blue to indicate that the microphone feed to the

1-2

intercom line is off, but the station is receiving power.

KB-701 SPEAKER STATION