BOSE 268134R00 Schematic

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Page 1

FreeSpace

E-4 Business Music System

OWNER ’S GUIDE

Page 2

Safety Information

Caution marks on the product

These CAUTION marks ar e located on the back of the product.

The lightning ﬂash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the

presence of uninsulated dangerous voltage within the system enclosure that may be of sufﬁcient magnitude to consti tute a risk of electric shock.

The exclamation point within an equilateral triangle, as

marked on the system, is intended to alert the user to

the presence of important operating and maintenance instructions in this owner’s guide.

Important safety instructions

Read these instructions.

2. Keep these instructions – for future reference.

3. Heed all warnings – on the product and in the owner’s

guide.

4. Follow all instructions.

5. Do not use this apparatus near water or moisture.

Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accor-

dance with the manufacturer’s instructions – To ensure

reliable operation of the product and to protect it from over heating, put the product in a position and location that will not interfere with its proper ventilation.

8. Do not install near any heat sources, such as radiators,

heat registers, stoves, or other apparatus (including ampliﬁers) that produce heat.

9. Do not defeat the safety purpose of the polarized or

grounding-type plug. A polarized plug has two blades with one wider than the other . A grounding-type plug has two blades and a third grounding prong. The wider blade or third prong are provided for your safety. If the pro vided plug does not ﬁt in your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or

pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories speciﬁed by the

manufacturer.

12. Use only with the cart, stand, tripod,

bracket, or table speciﬁ ed 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.

13. Unplug this apparatus during lightning storms or when

unused for long periods of time

this product.

14. Refer all servicing to qualiﬁed service personnel. Servic-

ing 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

Opening or removing covers may expose you to dangerous voltages or other hazards. Please call Bose to be referred to an authorized service center near you.

15. To prevent risk of ﬁre or electric shock, avoid overload-

ing wall outlets, extension cords, or integral convenience receptacles.

16. Do not let objects or liquids enter the product – as they may touch dangerous voltage points or short-out parts that could result in a ﬁre or electric shock.

17. See product enclosure for safety related markings.

18. No naked ﬂame sources, such as lighted candles, should

be placed on the apparatus.

ARNING:

– to prevent damage to

– Do not attempt to service this product yourself.

o reduce the risk of ﬁre or electric shock, do

not expose the ampliﬁer to rain or moisture.

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Page 3

Safety Information

Information about products that generate electrical noise

If applicable, this equipment has been tested and found to com ply 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 in a residential installa tion. 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 commu nications. However, this is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, you are encour aged 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 to an outlet on a different circuit than the one to which the receiver is connected.

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

Note: Unauthorized modiﬁcation of the receiver or radio remote

control could void the user’s authority to operate this equipment.

This pr oduct complies with the Canadian ICES-003 Class B speciﬁcations.

The information furnished in this user’s guide does not include all of the details of design, production, or variations of the equip ment. Nor does it cover every possible situation which may arise during installation, operation, or maintenance. If you need assis tance beyond the scope of this user’s guide, please contact our Customer Service department. See page 64.

“Customer support” on

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Page 4

Contents

1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1 The Bose

FreeSpace

E-4 business

music system . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 E-4 system accessories . . . . . . . . . . . . . . . . . . 6

1.3 FreeSpace Installer ™ software . . . . . . . . . . . . . 7

2.0 Designing with the E-4 System . . . . . . . . . . . . . . . . 8

2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Basic design steps . . . . . . . . . . . . . . . . . . . . . . 8

2.2.1 Step 1 – Determine source routing . . . . . . 8

2.2.2 Step 2 – Determine Auto

Volume requirements . . . . . . . . . . . . . 8

2.2.3 Step 3 – Determine volume

control requirements . . . . . . . . . . . . . . 11

2.2.4 Step 4 – Determine the

speaker requirements . . . . . . . . . . . . . 11

2.2.5 Step 5 – Determine the

E-4 requirements . . . . . . . . . . . . . . . . . 11

2.3 Auto Volume layout examples . . . . . . . . . . . . . 13

3.0 E-4 Hardware Description . . . . . . . . . . . . . . . . . . . . 16

3.1 Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.1.1 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.1.2 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2 Rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2.1 System controls . . . . . . . . . . . . . . . . . . . . 17

3.2.2 Audio source inputs . . . . . . . . . . . . . . . . . 17

3.2.3 Amplifier outputs . . . . . . . . . . . . . . . . . . . 17

3.2.4 AC power . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.0 Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2 Included accessories . . . . . . . . . . . . . . . . . . . . 18

4.3 Placement guidelines . . . . . . . . . . . . . . . . . . . . 18

4.4 Shelf mounting the E-4 unit . . . . . . . . . . . . . . . 18

4.5 Rack mounting the E-4 unit . . . . . . . . . . . . . . . 19

4.6 Installing accessories . . . . . . . . . . . . . . . . . . . . 20

4.6.1 Sensing microphones . . . . . . . . . . . . . . . . 20

4.6.2 User interfaces . . . . . . . . . . . . . . . . . . . . . 20

4.7 System wiring . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.7.1 Auto volume microphone inputs . . . . . . . 22

4.7.2 Serial data communications . . . . . . . . . . . 22

4.7.3 User interface connections . . . . . . . . . . . 22

4.7.4 Remote standby switch . . . . . . . . . . . . . . 22

4.7.5 LINE 1/LINE 2 source input . . . . . . . . . . . 23

4.7.6 MIC/LINE 3 source input . . . . . . . . . . . . . 23

4.7.7 MIC/PAGE/LINE 4 source input . . . . . . . . 24

4.7.8 DIRECT IN/CONTROL source input . . . . 24

4.7.9 Amplifier output channels . . . . . . . . . . . . 25

4.7.10 Output voltage setting (70/100V) . . . . . . 25

4.7.11 Auxiliary output . . . . . . . . . . . . . . . . . . . 26

4.8 AC power connections . . . . . . . . . . . . . . . . . . . 26

5.0 Using FreeSpace System Installer Software . . . . . 27

5.1 Installing the software . . . . . . . . . . . . . . . . . . . . 27

5.2 Connecting to the E-4 system . . . . . . . . . . . . . 27

5.2.1 Connecting to another hardware device . 30

5.2.2 Viewing the sample design file . . . . . . . . 30

5.3 The Installer software user interface . . . . . . . . . 31

5.4 Set Up Hardware mode . . . . . . . . . . . . . . . . . . 33

5.5 Set Up Schedule mode . . . . . . . . . . . . . . . . . . 34

5.5.1 Setting the clock . . . . . . . . . . . . . . . . . . . 35

5.5.2 Adding events . . . . . . . . . . . . . . . . . . . . . 35

5.5.3 Viewing and changing event settings . . . 36

5.5.4 Removing events from the list . . . . . . . . . 36

5.6 Service Hardware mode . . . . . . . . . . . . . . . . . . 37

6.0 E-4 System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.2 Connecting your PC to an E-4 system . . . . . . . 39

6.3 System setup procedure . . . . . . . . . . . . . . . . . 40

6.3.1 Output gain . . . . . . . . . . . . . . . . . . . . . . . 40

6.3.2 Zone setup . . . . . . . . . . . . . . . . . . . . . . . . 41

6.3.3 Input gain . . . . . . . . . . . . . . . . . . . . . . . . . 42

6.3.4 Source assign . . . . . . . . . . . . . . . . . . . . . 44

6.3.5 Source EQ . . . . . . . . . . . . . . . . . . . . . . . . 46

6.3.6 Page set up . . . . . . . . . . . . . . . . . . . . . . . 46

6.3.7 Zone EQ . . . . . . . . . . . . . . . . . . . . . . . . . . 48

6.3.8 Dynamic EQ . . . . . . . . . . . . . . . . . . . . . . . 48

6.3.9 Auto Volume . . . . . . . . . . . . . . . . . . . . . . 49

7.0 User Interface Operation . . . . . . . . . . . . . . . . . . . . 54

7.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7.2 Standard user interface operation . . . . . . . . . . 54

7.3 Auto Volume interface operation . . . . . . . . . . . 55

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Contents

8.0 E-4 System Troubleshooting . . . . . . . . . . . . . . . . . . 56

8.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8.2 E-4 hardware indicators . . . . . . . . . . . . . . . . . . 56

8.2.1 Normal operation . . . . . . . . . . . . . . . . . . . 56

8.2.2 System fault . . . . . . . . . . . . . . . . . . . . . . . 56

8.2.3 Amplifier fault . . . . . . . . . . . . . . . . . . . . . . 57

8.2.4 Input clipping . . . . . . . . . . . . . . . . . . . . . . 58

8.2.5 Direct input is active . . . . . . . . . . . . . . . . . 58

8.2.6 No STANDBY and SYSTEM indicators . . 58

8.3 FreeSpace

8.3.1 Contents of the error log . . . . . . . . . . . . . 59

8.3.2 Hardware configuration . . . . . . . . . . . . . . 59

8.3.3 Power-on self-test results . . . . . . . . . . . . 59

8.3.4 Amplifier alarms . . . . . . . . . . . . . . . . . . . . 60

8.3.5 Solving faults reported in the error log . . . 61

8.4 Common problems . . . . . . . . . . . . . . . . . . . . . . 62

8.4.1 Communications port error . . . . . . . . . . . 62

8.4.2 No audio in zone . . . . . . . . . . . . . . . . . . . 62

8.4.3 User interface keypads do not

8.4.4 Bad sound in a zone . . . . . . . . . . . . . . . . . 63

8.4.5 User interface selects

8.4.6 Auto Volume does not calibrate . . . . . . . . 64

8.4.7 All front panel LEDs are amber . . . . . . . . . 64

8.5 Customer support . . . . . . . . . . . . . . . . . . . . . . . 64

8.5.1 Technical assistance . . . . . . . . . . . . . . . . 64

8.5.2 Reporting software bugs and issues . . . . 65

9.0 Upgrading E-4 Microcontroller Code . . . . . . . . . . . 66

10.0 Technical Specifications . . . . . . . . . . . . . . . . . . . . 68

10.1 Power amplifier . . . . . . . . . . . . . . . . . . . . . . . . 68

10.2 Digital signal processing . . . . . . . . . . . . . . . . . 68

10.3 Front panel indicators and

control connections . . . . . . . . . . . . . . . . . . . . 68

10.4 Rear panel inputs, outputs, and controls . . . . 68

E-4 system Error Log . . . . . . . . . . 59

operate correctly . . . . . . . . . . . . . . . . . 63

unassigned sources . . . . . . . . . . . . . . 64

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Page 6

1.0 Introduction

1.1 The Bose

FreeSpace

E-4 business

music system

The Bose Fr eeSpace E-4 system is an integrated four-channel digital signal processor and 400-watt power ampliﬁer for 70/100V business music applications.

The E-4 system has a total of four source inputs, including two Line In, one Mic/Line and one Mic/Page/Line, to provide the inputs needed for most business music installations. The system also has a direct input which can override the sources playing on all four output channels.

The E-4 system has four ampliﬁer output channels which can be conﬁgured for different zones. A Music on Hold output is also provided for simple integration into a phone system.

In a single chassis, it provides all of the processing and control features required for one-to-four zone business music applica tions. These features include:

• Auto Volume: When used with the optional FreeSpace system Auto Volume Sense Mic, E-4 system electronics dynamically control the program level in each zone so your customers can always hear it, regardless of the background noise

• Scheduling: Allows you to program the E-4 system electronics for automated on/off control, source changes, and volume changes according to time of day or day of week

• Opti-Voice regardless of variations in speech projection

• Source Leveling: Automatically compensates for variations in source input levels

• Dynamic Equalization: Maintains tonal balance at all listening levels

• Room Equalization: Provides easy adjustment of tonal balance in each zone

• Signal Routing: Meets the demands of most four-zone systems, allowing for an input source to be routed to any of the four ampliﬁer outputs

• Serial Data Interface: RS-232 serial port for easy interfacing to your PC

• Contact Closure Input: Accepts a remote STANDBY switch

The integrated 400-watt power ampliﬁer features a patented power-sharing technology which dynamically allocates power to each output.

For example, if you have a two-zone system that requires 5 watts in Zone 1 and 395 watts in Zone 2, the FreeSpace E-4 system electronics distributes the power based on those needs.

The E-4 also includes an easy-to-replace memory module, which holds the system conﬁguration settings and design ﬁle uploaded by the FreeSpace

Paging: Provides the appropriate sound level

Installer ™ software (see page 7).

1.2 E-4 system accessories

Optional Bose accessories for the E-4 system ar e available.

• FreeSpace E-4 System User Interface Kit (U.S.) (PC029856) A wall-mountable keypad that ﬁ ts into a standard U.S. singlegang junction box. It provides buttons for volume up/down control, 1-3 source selection, and mute.

• FreeSpace E-4 System User Interface Kit (Euro) (PC029857) A wall-mountable keypad that ﬁ ts into a standard Euro singlegang junction box. It provides buttons for volume up/down control, 1-3 source selection, and mute.

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1.0 Introduction

•

FreeSpace (PC030101)

E-4 System Auto V olume Interface Kit (U.S.)

A wall-mountable keypad that ﬁ ts into a standard U.S. singlegang junction box. It provides buttons for volume up/down control, 1-3 source selection, and Auto Volume on/off.

• FreeSpace E-4 System Auto Volume Interface Kit (Euro)

(PC030102)

A wall-mountable keypad that ﬁ ts into a standard Euro singlegang junction box. It provides buttons for volume up/down control, 1-3 source selection, and Auto Volume on/off.

• FreeSpace E-4 System Auto Volume Mic Kit (U.S.)

(PC029859)

One sensing micr ophone that can be mounted as is or in a standard U.S. single-gang junction box.

• FreeSpace E-4 System Auto Volume Mic Kit (Euro)

(PC029860)

One sensing micr ophone that can be mounted as is or in a standard Euro single-gang junction box.

• FreeSpace E-4 System Accessory Kit (U.S.) (PC030105) Supplemental r ear panel mating connectors and non-skid feet.

• FreeSpace E-4 System Rack Mount Kit (PC029858) One pair of rack ears.

1.3 FreeSpace Installer ™ software

Bose

Fr eeSpace Installer software is included with every E-4 system. The devices such as the E-4 system. The designed for use on a PC that is connected to the E-4 system through a serial data interface.

The Installer software requires a computer system with the following minimum requirements:

• 400 MHz Pentium

256 MB of RAM

• 50 MB of available hard-drive space

• RS-232 serial port

• 800 x 600 display

• 4x CD-ROM drive

• Microsoft Windows

Windows

Installer software allows you to conﬁgure hardware

Installer software is

-based PC

2000

98, Windows

98SE, Windows

NT ,

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Page 8

2.0 Designing with the E-4 System

2.1 Introduction

This section describes the basic steps for designing an E-4 sys tem and includes an example. It is assumed that a complete loudspeaker design and layout has already been created.

2.2 Basic design steps

Ther e are ﬁve basic steps in designing an E-4 system.

2.2.1 Step 1 – Determine source routing

Decide which sources will be played in each area. Create a “source map” such as the following one that shows which sources will be played in each major area of the facility.

Source 1 Source 2 Source 3 Source 4

Area 1 ● ● Area 2 ● ● ● Area 3 ● ● Area 4 ● Area 5 ●

2.2.2 Step 2 – Determine Auto Volume requirements

Identify which areas will use Auto Volume. Each Auto Volume zone must use one Auto Volume user interface and one Bose sensing microphone to control the volume. A 70/100V volume control cannot be used.

When using Auto Volume, remember that you will be adjusting the volume of an overall area. Imagine that you have a dining area and a bar adjacent to one another. If the sensing microphone is placed above the bar, the music may become too loud in the din ing area. Likewise, if you place the sensing microphone above the dining area, the music may never be heard in the bar.

The following table provides some guidelines for establishing Auto Volume zones.

Speaker height is…

>25 ft Not recommended 12-25 ft One Auto Volume

<12 ft One Auto Volume

Speaker mounting height and the overall quality of the background noise is used to determine the Auto Volume zoning requirements. Uniform background noise is found in an area where no part of the area is louder or quieter than any other. A room with non-uniform background noise would seem louder in some areas (people talking, machinery running, etc.) and quieter in others.

When ﬁnding mounting locations for the sensing microphones, remember these points:

• The sensing microphone must be mounted at the same height as the loudspeakers or higher. A sensing microphone must never be mounted lower than the speaker height.

• In all cases, there must be 6 ft (1.8 m), minimum, between the loudspeaker and the sensing microphone. This is so that the microphone does not receive signals only from a loudspeaker.

• There must be 35 ft (10.7 m), minimum, between the sensing microphones of two adjacent Auto Volume zones.

•Avoid placing the microphone near unique noise sources like HVAC equipment, dishwashers, motors, etc.

Separating the microphones as much as possible for two zones is the best practice. Consider the previous example of the dining area and a bar adjacent to one another. If each of these areas uses Auto Volume, it is possible to create a situation in the dining

area where the music is too loud simply because the microphone

is too close to the bar.

Background noise is uniform

zone for every 3600 ft

zone for every 1800 ft

Background noise is non-uniform

One Auto Volume

zone for every 1800 ft One Auto Volume

zone for every 900 ft

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Page 9

2.0 Designing with the E-4 System

The following are examples of correct and incorrect sensing microphone placements:

Correct placement Incorrect placement

Ceiling Flush

Mic

Wall Surface

Correct placement Incorrect placement

Mic

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Page 10

2.0 Designing with the E-4 System

When mounting sensing microphones, always maintain a distance of 6 feet (minimum) between the microphone and the speaker.

Ceiling Flush

≥6 ft

Mic

≥6 ft

Ceiling Surface

Mic

≥6 ft

≥ 6'

Wall Surface

≥6 ft

≥ 6'

Mic

≥6 ft

≥ 6'

≥6 ft

≥ 6'

32SE

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2.0 Designing with the E-4 System

2.2.3 Step 3 – Determine volume control requirements

Decide which areas will have volume controls. Create a control map, such as the following, showing the types of controls that will be used, and the areas in which they will be installed.

Auto

Volume

Interface

Area 1 ● Area 2 ● Area 3 ● Area 4 ● Area 5 ●

Standard and Auto Volume interfaces are available for use with the E-4 hardware. Each offers control over source selection and volume. The Standard interface contains a Mute button, and the Auto Volume interface contains an Auto Volume on/off button. If you have identiﬁed an area that uses Auto Volume, you must use an Auto Volume interface to control this zone.

It is also possible to use 70/100V volume controls between the ampliﬁer output and the speaker input. If you plan to use 70/100V controls, be aware that they cannot be used in zones where either Auto Volume or Dynamic EQ is used. Auto Volume and Dynamic EQ monitor the ampliﬁer output and make adjustments accordingly. Using a 70/100V volume control would cause these functions to operate improperly.

When determining the placement or physical location of the controls, ﬁrst think about how the control is used. If the control is very rarely used or it requires a secure location, it should be placed with the equipment. If the control is for an area that requires frequent adjustments, then it is best to place the control in the area being controlled.

Auto

Volume

Interface

70/100V

Volume Control

70/100V

Volume Control

2.2.4 Step 4 – Determine the speaker requirements

Determine the speaker coverage required for the design. Consider the following points as you do this:

• Each Auto Volume function requires a separate zone. Each

Auto Volume zone requires the dedicated use of one E-4 out put channel.

• Each type of actively equalized speaker requires the dedicated

use of one E-4 output channel. If you are designing a system that uses actively equalized speakers, such as the 102 speaker, Model 32, Model 32SE, or Model 8, you must dedicate one E-4 output channel for each speaker type. If you have a system that uses passive speakers, such as the FreeSpace

system, Model 16 or 302™A speaker, you can mix and

match them on an E-4 output channel.

Create a speaker map, such as the following, and match the speaker models to areas (Speaker Qty x Tap = Zone Power required):

Model

32SE

Area 1 ● Area 2 ● Area 3 ● Area 4 ● Area 5 ●

FreeSpace

3-I

Speaker

Qty Tap

2 50 100

5 8 40

1 50 50

3 4 12

6 8 48

Area

Power

2.2.5 Step 5 – Determine the E-4 requirements

Once you have identiﬁed the areas that use Auto Volume and unique loudspeakers, you can combine different areas based on the types of sources and controls they are using.

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2.0 Designing with the E-4 System

Now we can take a look at how the maps we created can help us determine the quantity of E-4s we will need.

Sources Controls Loudspeakers

1 2 3 4 AV1 AV2 VC1 VC2 M32SE FS3 Total W E-4 Ch.

Area 1 ● ● ● ● 100 1 Area 2 ● ● ● ● ● 40 2 Area 3 ● ● ● ● 50 3 Area 4 ● ● ● 12 4 Area 5 ● ● ● 48 4

By combining the maps you can easily combine sources, speaker types, and control types. The information placed in this table suggests that Area 1 and Area 3 need to be grouped separately because they are Auto Volume zones requiring separate E-4 system outputs. Area 2 uses one standard volume contr ol requiring one E-4 output channel. Areas 4 and 5 share a common volume control and can be combined on a thir d E-4 output channel. Since only four outputs are required and the total combined power requirement is less than 400W, only one E-4 unit would be needed for this system.

Total System Power = 250W

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2.0 Designing with the E-4 System

2.3 Auto Volume layout examples

Large, open retail space with single music source

FreeSpace Model 16 (pendant mounted) Sensing microphone

Acoustimass module

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Page 14

2.0 Designing with the E-4 System

Hair salon (Small space with specific noise)

FreeSpace® 3 system

Small space with specific noise

Sensing microphone

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Page 15

Hotel lobby

2.0 Designing with the E-4 System

22 ft

22'

40 ft

40'

Model 16

(flush mounted)

Sensing microphone

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Page 16

3.1 Front panel

3.0 E-4 Hardware Description

FreeSpace

Business Music System

3.1.1 Controls

STANDBY – The STANDBY button switches the unit

between standby and active. The color of the LED above the switch indicates the status:

Amber = Unit is in standby Unlit = Unit is active

USB – A USB communications port (for future use)

3.1.2 Indicators

SYSTEM STATUS – The SYSTEM STATUS LED indicates

the condition of the unit:

Green = Normal operation Red = Fault condition

AMP OUTPUTS

AUDIO SOURCES

AUDIO SOURCES – These LEDs indicate the operating

SYSTEM

STATUS

DIRECT

INPUT

STANDBY

USB

status of the four input sources:

Green = Good signal Amber = Low signal Red = Signal clipping Unlit = No signal

DIRECT INPUT – The color of this LED indicates the condi-

tion of the source connected to the DIRECT IN/CONTROL connector on the rear panel.

Amber = Active bypass Unlit = Normal operation

AMP OUTPUTS – These LEDs work in pairs (1 and 2, 3 and

4) and indicate the operating status of the four ampliﬁer output channels:

Green = Normal operation Red = Fault condition Unlit = No signal

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Page 17

3.2 Rear panel

3.0 E-4 Hardware Description

SENSE MICROPHONES

1234

WALL PLATE CONNECTION

LINE 1

LINE 2

CONTACT CLOSURE

INPUT

AUDIO SOURCES

MIC/

MIC/PAGE/

LINE 3

AUX OUT/

CONTROL

LINE4

RS232

MUSIC ON

HOLD/

PBX OUT

12V

DIRECT IN/

CONTROL

PTT PTT

ion.

INPUTS

3.2.1 System controls

SENSE MICROPHONES – Input connectors for sensing

microphones used with the Auto Volume feature. See the Auto Volume Kit.

RS-232 – Standard RS-232 communications port. Provides

a communications interface for a PC running FreeSpace® system Installer™ software. The Installer™ software is used to conﬁgure the E-4 hardware.

WALL PLATE CONNECTION – Input connectors for stan-

dard and Auto Volume user interfaces

50/60Hz

POWER

OFF

CLASS 2 WIRING

AMP OUT

OUTPUTS

®

LISTED 917D

AUDIO

EQUIPMENT

This device complies with part 15 of the FCC rules. Operation is subject to the following conditions: (1)This device may not cause harmful interference and (2)this device must accept any interference received,including interference which may cause undesired operat Complies with Canadian ICES-003 Class A Spec.

AMP OUT

geprüfte

TüV Rheinland

Sicherheit

RISK OF ELECTRICAL SHOCK

OUTPUT

VOLTAGE

70V 100V

DO NOT SWITCH

WHILE POWER IS ON

Bose Corporation, Framingham, MA 01701-9168

RISQUE DE CHOC ELECTRIQUE

DO NOT OPEN

FreeSpace Model E-4

400 Watt System Electronics

Made in the U.S.A.

NE PAS OUVRIR

100/120V~AC T6.25A, L250V 220/240V~AC T3.15A, L250V

300W MAX

Installer’s Note: Please notice the polarity markings when wiring speaker cables to the AMP OUT connectors.

CAUTION: DO NOT ground the minus (–) terminals.

AUX OUT/CONTROL – A line-level output that duplicates

the program material from LINE 4. May be used to feed another ampliﬁer installed for a large zone. The 12V control output is used to connect to Bose

MUSIC ON HOLD/PBX OUT – An audio output used to

ampliﬁer sequence inputs.

provide music input to a PBX system

CONTACT CLOSURE INPUT – An input connector for a

remote STANDBY switch

3.2.2 Audio source inputs

LINE 1/LINE 2 – Unbalanced audio inputs

MIC/LINE 3 – Balanced audio input with phantom power MIC/PAGE/LINE 4 – Balanced audio input with phantom power DIRECT IN/CONTROL – Balanced (DSP bypass at max. power)

3.2.3 Amplifier outputs

AMP OUT 1/2/3/4 – Speaker connections for four zones

3.2.4 AC power

OUTPUT VOLTAGE – Sets the AMP OUT lines to 70/100V.

Set fuse box to 100/120V for 70V; 220/240V for 100V

POWER ON/OFF – Switches AC power on or off

Fuse box – Conﬁgures the E-4 for 100/120V or 220/240 Set

OUTPUT VOLTAGE to 70V for 100/120V; 100V for 220/240V.

AC line cord jack – AC line voltage input

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4.0 Hardware Installation

4.1 Introduction

This section provides instructions for installing the FreeSpace® E-4 system hardware on a tabletop or in a rack.

4.2 Included accessories

The following accessories are shipped with the E-4 unit in the FreeSpace E-4 System Accessory Kit (PC030105).

• 2-terminal input connectors (6) – For wiring sensing microphones

• 3-terminal input connectors (2) – For wiring equipment to the MIC/LINE 3 input

• 4-terminal input connectors (3) – For wiring equipment to the AUX/OUT CONTROL, MIC/ PAGE/LINE 4, and DIRECT IN/CONTROL inputs

• 2-terminal output connectors (5) – For wiring speaker cables to the AMP OUT connections

• Rubber feet (4) – For installing the E-4 unit on a level surface

4.3 Placement guidelines

• Place the E-4 unit where it is protected from heat and allowed adequate ventilation.

• Place the E-4 unit away from direct heat sources, such as heating vents and radiators.

• Make sure that air can circulate freely behind, beside, and above the unit. Allow six inches on all sides.

Installer’s Note: Do not allow the chassis to exceed the maximum operating temperature of 50˚ C (122˚ F). Be aware of conditions in an enclosed rack that may increase the temperature above room-ambient conditions.

4.4 Shelf mounting the E-4 unit

The E-4 unit is ideal for shelf mounting. The included accessory kit contains four rubber feet for the bottom of the E-4 chassis. The rubber feet will protect the surface on which the E-4 unit is installed and help prevent movement of the E-4 unit. Be sure to follow the “Placement Guidelines” previously described when choosing a location for the E-4 unit.

• Replacement voltage label (2) – Used on OUTPUT VOLTAGE selection switch

• FreeSpace system Installer™

software CD

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Page 19

4.0 Hardware Installation

4.5 Rack mounting the E-4 unit

Required accessory: FreeSpace® E-4 System Rack Mount Kit

(PC029858)

Rack ears

The E-4 unit requires three 1.75" (4.4 cm) rack space units with a 16" (40.6 cm) inside depth (including the rear supports). When mounting, use four screws with washers to prevent marring the front panel. Neoprene rubber washers are a good choice because they grip the screw head and prevent the screws from backing out from vibration or during transportation.

Installer’s Note: If the E-4 unit is to be transported while mounted in a rack, be advised that the rear of the E-4 unit must be mechanically supported. Install a shelf under the unit or use brackets in such a way as to support the rear of the unit. Failure to use proper mounting hardware may result in damage to the E-4 unit during transport.

(8) #8-32 x 1/2 in

Attaching rack ears to the E-4 chassis

Attaching the E-4 chassis to the rack

(mounting screws not provided)

19 of 72

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4.0 Hardware Installation

4.6 Installing accessories

4.6.1 Sensing microphones

Required accessory:

FreeSpace® E-4 System Auto Volume Mic Kit [PC029859 (U.S.), PC029860 (Euro)]

Wall plate-microphone

assembly

Assembly:

The sensing microphone can be installed:

• Using a junction box, or

• The microphone can be removed from the wall plate and mounted on a wood or similar surface.

Wall plate-junction box

assembly

Temporary plug

(2) Wire nuts

(2) #6-32 screws

Wall plate-junction box

assembly

Painting:

To paint the wall plate assembly, install the supplied temporary plug over the microphone. Remove the plug when ﬁnished painting.

Mounting locations:

For instructions on mounting locations, see “Step 2 – Determine Auto Volume requirements” on page 8.

4.6.2 User interfaces

Required accessory: FreeSpace E-4 System User Interface Kit

Wall plate

[PC029856 (U.S.), PC029857 (Euro)] or FreeSpace E-4 Auto Volume Interface Kit [PC030101 (U.S.), PC030102 (Euro)]

Keypad

Back plate

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#6 x 32 screws

Page 21

4.0 Hardware Installation

Required additional equipment (not supplied):

Single-gang

RJ45

connectors

Cat 5 cable

electrical box

(with 4 twisted pairs)

Assembly:

SENSE MICROPHONE

123

WALL PLATE CONNECTION 1

LINE 1

LINE 2

LINE 3

User interface wiring:

Installer’s Note: Use only standard ethernet (Cat 5) cable to connect the user interface to the E-4 unit. DO NOT use crossover (XOV) cables.

568A Color Code

1 – White/Orange 2 – Orange

RJ45

3 – White/Green 4 – Blue 5 – White/Blue 6 – Green 7 – White/Brown 8 – Brown

CON CLO

AUDIO MIC/

Disabling source select keys:

Normally, when you press a source select key on either the standard user interface or Auto Volume user interface, you assign the selected source to the zone you are in. If you do not want a par ticular source available in the zone, you can disable the source key by making the following wiring modiﬁcations to the ethernet cable.

•To disable source 1 key: make no connection at position 4.

•To disable source 2 key: make no connection at position 5.

•To disable source 3 key: make no connection at position 6. For operation information, see “User Interface Operation” on

page 54.

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Page 22

4.0 Hardware Installation

C L

4.7 System wiring

Installer’s Note: Disconnect the E-4 unit from the AC (mains) power before making any input/output connections.

4.7.1 Auto volume microphone inputs

Connect each sensing microphone to the SENSE MICROPHONES jacks on the E-4 rear panel.

SENSE MICROPHONES

1234

WALL PLATE CONNECTION 132

LINE 1

LINE 2

CONTACT CLOSURE

INPUT

AUDIO SOURCES MIC/

LINE 3

4.7.2 Serial data communications

Connect your PC to the E-4 unit using a straight-wired serial data cable (DB9 male to DB9 female).

AUX OUT/ CONTROL

MIC/PAGE/

LINE4

RS232

MUSI

PBX

12V

DIRECT I CONTR

PTT

4.7.3 User interface connections

Connect the user interface from each zone to the appropriate WALL PLATE CONNECTION jack.

Installer’s Note: Only use standard ethernet (Cat 5) cable to connect the user interface to the E-4 unit. DO NOT use crossover (XOV) cables.

SENSE MICROPHONES

1234

WALL PLATE CONNECTION

CONTACT CLOSURE

INPUT

LINE 1

LINE 2

AUDIO SOURCES

MIC/

LINE 3

AUX OUT/ CONTROL

MIC/PAGE/

LINE4

RS232

MUSIC ON

HOLD/

PBX OUT

12V

DIRECT IN/ CONTROL

PTT PTT

4.7.4 Remote standby switch

If you are installing a remote standby switch, connect it to the CONTACT CLOSURE INPUT.

Remote Standby

Switch

E-4 CONTACT

CLOSURE INPUT

ion.

INPUTS

RS232 port pinout

Normally Open

Switch (latching)

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4.0 Hardware Installation

4.7.5 LINE 1/LINE 2 source input

Audio sources can be connected to the LINE 1 and LINE 2 inputs using one of the following cable types.

Source Connector

RCA

XLR

Phone Plug (Balanced)

Phone Plug (Unbalanced)

T R S

E-4 LINE 1/LINE 2

4.7.6 MIC/LINE 3 source input

A microphone or an audio source can be connected to the MIC/ LINE 3 input using one of the following cable types.

Source Connector

RCA

XLR

Phone Plug (Balanced)

Phone Plug (Unbalanced)

T R S

3 2

E-4 MIC/LINE 3

S R T

MIC/LINE 3

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4.0 Hardware Installation

4.7.7 MIC/PAGE/LINE 4 source input

A microphone or an audio source can be connected to the MIC/ PAGE/LINE 4 input using one of the following cable types.

Source Connector

RCA

XLR

Phone Plug (Balanced)

Phone Plug (Unbalanced)

Normally Open Switch (latching)

T R S

1 3 2

E-4 MIC/PAGE/LINE 4

PTT

S R

PTT

4.7.8 DIRECT IN/CONTROL source input

A microphone or an audio source can be connected to the DIRECT IN input using one of the following cable types. The con trol (PTT) input requires a normally open switch.

Source Connector

RCA

XLR

Phone Plug (Balanced)

Phone Plug (Unbalanced)

Normally Open Switch (latching)

T R S

E-4 DIRECT IN/CONTROL

PTT

S R

PTT

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PTT

Page 25

4.0 Hardware Installation

U.S A

4.7.9 Amplifier output channels

Connect cables from up to four zones to the AMP OUT jacks. Install an output connector (supplied) on each output line.

–

Installer’s Note: Please notice the polarity markings on the AMP OUT 1-4 connectors. Wire each connection as shown, using the 2-terminal output connector from the accessory kit.

OUTPUTS

Installer’s Note: DO NOT ground the minus (–) side of the line.

Turn the connector over and insert it into the appropriate AMP OUT jack.

CLASS 2 WIRING

AMP OUT

OUTPUTS

AMP OUT

LISTED917D

AUDIO EQUIPMEN T

This devicecomplies with part 15of the FCC rules. Operation is subject tothe following conditions: (1)Thisdevice may not cause harmfulinterference and (2)thisdevice mustaccept any interference received,includinginterference which maycause undesiredoperat Complies with Canadian ICES-003 Class A Spec.

rü

RISK

OFELECTRICA

DONOT OPEN

SHOC K

OUTPUT VOLTAGE

70V

100V

DO NOT SWITCH

WHILE POWER IS ON

FreeSpace Model E-4

Bose Corporation, Framingham

400 Watt System Electronics

Made in the

RISQU E

CLASS 2 WIRING

AMP OUT

DECHO NEPAS OUVRI

ELECTRIQU E

POWER

OFF

100/120V~AC T6.25A, L250V 220/240V~AC T3.15A, L250V

50/60Hz

300W MAX

4.7.10 Output voltage setting (70/100V)

Check the OUTPUT VOLTAGE switch setting and change if needed.

Installer’s Note: Disconnect power from the E-4 unit before changing the OUTPUT VOLTAGE setting.

To change the setting to 70V or 100V, remove the label, change the switch setting and replace the label. Additional labels are supplied in the accessory kit.

Installer’s Note: Changing this setting requires a corresponding change to the fuse box conﬁguration: 70V is selected for 100-120VAC; 100V is selected for 220-240VAC.

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4.0 Hardware Installation

4.7.11 Auxiliary output

The AUX OUT connection provides a line-level output that duplicates the program material on LINE 4. This may be used to feed another Bose output is used to connect to Bose ampliﬁer sequence inputs.

Source Connector

RCA

XLR

Phone Plug (Balanced)

Phone Plug (Unbalanced)

Control Signal

T R S

ampliﬁer installed for a large zone. The 12V contr ol

E-4 AUX OUT/CONTROL

S R

12V

4.8 AC power connections

Installer’s Note: The fuse box conﬁguration must be coordinated with the 70/100V OUTPUT VOLTAGE setting: 70V is selected for 100-120VAC; 100V is selected for 220-240VAC.

Check that the fuse box is set up for the line voltage used in your region. To change the source voltage setting:

1. Using a thin screwdriver blade, remove the fuse drawer and fuse.

2. Pull out the line voltage selector and turn it to display the new voltage. Reinsert the selector.

3. Insert the proper fuse drawer and fuse.

220-240V: Black drawer, 5 x 20 fuse 100-120V: Beige drawer, 3AG fuse (not provided)

4. Insert the proper power cord for the voltage used in your region.

Bose 1600, 1800 or M2150 Amplifier

12V

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Page 27

5.0 Using FreeSpace® System Installer™ Software

5.1 Installing the software

Insert the FreeSpace system Installer™ software CD into the CD tray of your laptop PC.

2. Set the rear panel POWER switch to ON. Verify that the STANDBY indicator is lit on the E-4 front panel. Then press the ST ANDBY push button to switch the E-4 har dware to the operating mode.

If the install program does not start automatically, open “My computer” from the desktop, double-click on the CD-ROM drive

POWER switch

icon, and double-click on the “Setup.exe” icon. Follow the instructions on the screen to complete the installation.

Programmer’s Note: For the Installer™ software to operate properly, your PC must be connected to the E-4 hardware. See the following section, “Connecting to the

WIRING OUT

RISKOF ELECTRICALSHOCK

DONOT OPEN

RISQUEDE CHOC ELECTRIQUE

NEPAS OUVRIR

POWER

OFF

E-4 system”.

OUT

5.2 Connecting to the E-4 system

Before you can conﬁgure a hardware device, your PC must ﬁrst be physically connected to the hardware device with a serial cable and then that connection must be activated using the soft ware.

1. Connect the RS-232 serial port of your laptop PC to the

peration is

not cause interference d operat

OUTPUT

VOLTAGE

70V 100V

DO NOT SWITCH

WHILE POWER IS ON

FreeSpace Model E-4

400 Watt System Electronics

Bose Corporation, Framingham, MA 01701-9168

Made in the U.S.A.

100/120V~AC T6.25A, L250V 220/240V~AC T3.15A, L250V

50/60Hz

300W MAX

RS-232 serial port on the rear panel of the E-4 hardware.

RS-232 serial data cable (not provided)

RS232

Laptop PC

E-4 system

AMP OUTPUTS

AUDIO SOURCES

SYSTEM

STATUS

DIRECT

INPUT

STANDBY

USB

STANDBY indicator

STANDBY push button

SENSE MICROPHONES

1234

WALL PLATE CONNECTION 1

CONTACT CLOSURE

INPUT

AUDIO SOURCES

LINE 2

MIC/

LINE 3

LINE 1

AUX OUT/ CONTROL

MIC/PAGE/

LINE4

RS232

MUSIC ON

HOLD/

PBX OUT

12V

DIRECT IN/ CONTROL

PTT PTT

ion.

INPUTS

27 of 72

Page 28

5.0 Using FreeSpace® System Installer™ Software

3. Launch the Installer™ software. The Installer software begins with a splash screen display:

If a hardware device is detected, you will see the following status message as the software automatically activates the connection.

By default, the Installer software tries to locate a hardwar e device on the COM 1 serial port. If the system hardware is not detected on COM 1, the “Choose COM port” dialog box opens with the message, “Could not detect system hardware on selected serial port.”

Programmer’s Note: Before dismissing the “Choose COM port” dialog, select the COM 2 port and click Try Again. Not doing this will cause the COM 1 port to be locked.

After your PC successfully connects to the E-4 hardware, the Choose COM port dialog should automatically close. If not, close the window manually.

Programmer’s Note: Clicking the Close button on the hardware connection status dialog will cause a communications failure, locking the serial port.

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5.0 Using FreeSpace® System Installer™ Software

The hardware device that you have connected to may have a design ﬁle in its internal memory that describes the conﬁguration of the unit and the system it resides in. After the ware reads the design ﬁle from the hardware, it will display a list of compatible ampliﬁers and ask you to choose which device you want to conﬁgure. The list will only include devices from the design ﬁle that are compatible with the system currently con nected to your PC. Select a device in the window and click OK.

After successfully connecting to an E-4 system, the Installer software opens in the Set Up Hardware mode and displays the E-4 block diagram or “E-4 front panel” like the one shown here:

Installer™ soft-

Programmer’s Note: If you are not connected to the E-4 hardware, you can still see an example of this front panel by opening the sample design ﬁle provided on the Installer CD. See “Viewing the sample design ﬁle” on page 30.

The ﬁrst time you connect to an E-4 unit, the front panel will display the factory default settings.

If no hardware is detected, you will see the following message:

In this case, the Installer software opens in the Set Up Hardware mode with a blank hardware pane.

Programmer’s Note: To conﬁgure an E-4 system, the E-4 unit must be powered up. DO NOT switch the E-4 unit to STANDBY mode while the Installer software is run ning.

Programmer’s Note: The Installer software does not notify you if there is a loss of communication between the E-4 hardware and your PC.

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5.0 Using FreeSpace® System Installer™ Software

5.2.1 Connecting to another hardware

device

1. Before disconnecting from the current hardware,

click the (Flash Hardware Conﬁguration) button to send the design ﬁle and conﬁguration to the hardware.

It is good pratice to save the design ﬁle to your hard drive,

click the (Save As) button.

2. Disconnect the serial cable from the current hardware device and connect it to the serial port of the other hardware device.

3. Click the (Detect Hardware) button to download the design ﬁle and conﬁguration from the new hardware. The “Status: Initialization” dialog will open and the “Design File compatible ampliﬁers” dialog may also open asking you to choose a hardware device to control.

5.2.2 Viewing the sample design file

A sample design ﬁle is included with your Installer™ software. This can be used to display a front panel when your PC is not connected to a system hardware device.

To open the sample design ﬁle:

1. Click the Open ﬁle tool in the Installer software window.

2. Select the “sample.fsi” design ﬁle in your Installer software directory: C:\Program Files\FreeSpace Installer 1.0.

3. Click the Open button in the dialog box.

4. Click on the FreeSpace E-4 system name in the System Overview pane. The E-4 front panel will appear in the appli cation window.

Programmer’s Note: If you are not connected to the E-4 unit when you open a design ﬁle, all controls within the software are grayed out and not accessible.

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5.0 Using FreeSpace® System Installer™ Software

5.3 The Installer™ software user interface

The following describes the software user interface.

Mode buttonsTool box Window sizing tools

Work area

System overview pane

Control pane

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5.0 Using FreeSpace® System Installer™ Software

Tool box

Open File – Displays the ﬁle open dialog.

Save File – Saves the design ﬁle and the current set-

tings of the connected hardware device to your PC’s hard drive.

Flash Hardware Conﬁguration – Sends the design ﬁle and current settings from your PC to the memory of the connected hardware device. This determines the default startup state of the device.

Detect Hardware – Uploads the design ﬁle and conﬁguration settings from the system hardware to your PC.

Help – Launches the online help system.

Mode buttons

Set Up System – Selects the

Set Up System mode enabling you to set up the system hardware or create a schedule to automate system operation.

Hardware – Selects the Set Up Hardware mode.

Schedule – Selects the Set Up Schedule mode.

Service Hardware – Selects the Service Hardware mode.

System overview pane – After connecting your PC to a system, this pane will list all the hardware devices in the system. The hardware device to which you are connected is highlighted. If there are several hardware devices available, they will be dis played in a hierarchical list.

Work area – The functions available for each mode are displayed in the work area.

Control pane – The control pane is used to display the controls for the function selected in the work area.

Screen sizing tools

Minimize Window – Collapses the application window

into the Windows Task bar. Maximize Window – Expands the application icon in

the Task bar to ﬁll the screen. Close Application – Closes the application program.

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5.0 Using FreeSpace® System Installer™ Software

5.4 Set Up Hardware mode

Using the Set Up Hardware mode, you can create new system conﬁgurations. The following example displays the software front panel for the FreeSpace

The hardware setup window consists of three panes: System overview pane – This pane displays the selected hard-

ware device that you are currently conﬁguring. For more information on the system overview pane, see “The Installer™ software user interface” on

E-4 system.

page 31.

Hardware pane – The hardware pane displays a software front panel of the hardware device that you selected in the system overview pane. Reading from left to right, this diagram shows you the functions and signal paths from input sources to output zones. All functions internal to the connected hardware device appear on a gray background.

Functions are selected by clicking on a button. When you select a function, all controls for that function appear in the control pane.

ontrol pane – When you select a function in the hardware pane, the controls that affect operation, conﬁguration, or setup of the selected function or device appear in the control pane. You can view additional functions by clicking on More.

33 of 72

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5.0 Using FreeSpace® System Installer™ Software

5.5 Set Up Schedule mode

The Set Up Schedule mode allows you to automate a system by creating up to 64 events. To select the Set Up Schedule mode, click the and controls of the Set Up Schedule window are as follows:

Event list selection tabs – These tabs determine which list of events is displayed. Click the top tab to display the system event

Schedule button under Set Up System. The features

Event list selection tabs

Event list

list. Click any one of the ZONE tabs to display the event list for a selected zone.

Event list – This list contains all scheduled events for the selected system or zone. Each event entry includes the time of the event, a description of the event, and the days of the week on which the event will occur.

System overview pane

Control pane

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5.0 Using FreeSpace® System Installer™ Software

Add event buttons – The Add Event buttons include On/Off, Volume, Source, and Auto Volume. The On/Off button is a sys-

tem event only. Volume, Source, and Auto Volume are zone events. When you click one of these buttons, the event is added to the list and the controls for the selected event are displayed in the Event control panel.

Control pane – When you select an event in the event list, this pane displays the settings for that event. Any changes made to these settings are reﬂected in the event listing.

Remove Event button – This button will remove a selected event from the event list.

Hardware clock display – The clock display shows the current date and time of the hardware clock. The used to set or change the clock.

System overview pane – This pane displays the selected hardware device that you are automating. For more information on the system overview pane, see “The face” on page 31.

Installer™ software user inter-

Set Clock button is

5.5.1 Setting the clock

The date and time of the hardware clock is initially set in Eastern Standard Time. After your PC is connected to the hardware, check the clock and set it as necessary for the time zone and region of your installation.

To adjust the clock settings manually, click the Set Clock button in the clock panel. The Clock Settings window opens, allowing you to make adjustments to the date and time. Click to set the clock in the hardware, or click dow and leave the clock settings unchanged.

Cancel to close the win-

Apply or OK

5.5.2 Adding events

When you click the On/Off, Volume, Source, or Auto Volume event button, an event of that type is added to the event list. At this point you can change the event settings. When the event list exceeds the length of the pane, the software will add a scroll bar on the right side.

A maximum of 64 events may be added to a system. This means that the total number of events from all event lists must not exceed 64. An On-Off event consumes two events, while source change, volume change, and Auto Volume events consume one apiece.

Zone events programmed to occur at the same time as a “System ON” event will not occur . To ensure that zone events will happen, they must be programmed to occur 15 minutes after the “System ON” event. For example, if a “System ON” event is pro grammed to occur at 8:00 AM, the ﬁrst zone event should be programmed to occur at 8:15 AM.

Installer’s Note: Flashing the Installer software conﬁguration ﬁle to the E-4 unit sets the default state of the system when it is turned on. Whenever possible the default state of the system should be set to meet the requirements most likely to occur after a scheduled “System ON” event.

Adds a system Auto On/Off event

This event applies only to the whole system. You can select individual on or off times for the day(s) you choose. Or, you can select on and off times in a single statement.

Programmer’s Note: One Auto On/Off event speciﬁes both an “On” time and an “Off” time and is counted as two events.

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5.0 Using FreeSpace® System Installer™ Software

Adds a zone Volume Change event

This event allows you to change the volume level at a speciﬁed time on selected days of the week.

Programmer’s Note: The maximum/minimum volume stops cannot be adjusted in this pane. T o adjust these limit stops, select the Output Gain function in the Set Up Hardware mode.

Adds a zone Source Change event

This event allows you to change the source at a speciﬁed time on selected days of the week.

Adds a zone Auto Volume event

This event allows you to turn Auto Volume on or off at a speciﬁed time on selected days of the week.

Programmer’s Note: Events are only saved to the E-4 unit when you click the (Flash Hardware Conﬁgu-

ration) button.

5.5.3 Viewing and changing event settings

To view any event and change the settings, ﬁrst click the system or one of the zone tabs. Then select an event in the list to display the event settings in the control pane. Now, you can edit the set tings just as when an event is added.

5.5.4 Removing events from the list

To remove an event from the list, select the event by clicking on it

and then click the

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(Remove Event) button.

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5.0 Using FreeSpace® System Installer™ Software

5.6 Service Hardware mode

The Service Hardware mode provides a list of any system errors that have occurred. To view the Error Log, click the

Hardware

Error Log is retrieved from the hardwar e and displayed in the win dow.

button. If you are already connected to hardware, the

Service

If not yet connected, select the hardware in the System Overview pane and after establishing the connection, click the

(Detect Hardware) button and the Update Log button.

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5.0 Using FreeSpace® System Installer™ Software

When the FreeSpace E-4 system is powered on, it performs a self-test. Any errors detected during a power-on cycle are appended to the Error Log. Likewise, any errors detected during normal operation are appended to the Error Log. The Error Log provides diagnostic information for repair technicians to help them repair the system.

For more information on reported errors, see “FreeSpace® E-4 system error log” on page 59.

The buttons below the Error Log display allow you to manage the Error Log information:

Uploads the current Error Log listing from the hardware. If you recently cleared the log, the Error Log will contain information reported only since the time you cleared it.

Exports the Error Log to your hard drive as a text ﬁle.

Clears the Error Log from the window and the E-4 hardware.

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Page 39

6.0 E-4 System Setup

w n n f

6.1 Introduction

This section provides instructions on setting up an installed E-4 system. To set up an E-4 system you need a PC running the FreeSpace

system Installer™ software.

6.2 Connecting your PC to an E-4 system

Before you can set up the E-4 system, your PC must ﬁrst be physically connected to the E-4 unit with a serial cable and then that connection must be activated using the

1. Connect the RS-232 serial port of your PC to the RS-232

serial port on the rear panel of the E-4 unit using a straight serial data cable.

RS-232 straight

RS232

serial data cable

(not provided)

E-4 system

SENSE MICROPHONES

1234

WALL PLATE CONNECTION 132

CONTACT CLOSURE

INPUT

AUDIO SOURCES MIC/

LINE 2

LINE 1

LINE 3

2. Set the E-4 rear panel POWER switch to ON. When the E-4

unit is powered up and ready, the SYSTEM STATUS indica tor is dark (unlit) and the STANDBY indicator is amber.

Installer™ software.

Laptop PC

RS232

INPUTS

MUSIC ON

HOLD/

AUX OUT/

PBX OUT

CONTROL

12V

DIRECT IN/

MIC/PAGE/

CONTROL

LINE4

PTT PTT

ion.

LISTED917D

AUDIO

EQUIPMENT

Thisdevice complies subjectto the followi harmfulinterference a received,includinginter Complies with Canadia

Rear

RISKOF ELECTRICALSHOCK

OUTPUT

VOLTAGE

70V 100V

DO NOT SWITCH

HILE POWER IS ON

Bose Corporation, Framingham, MA 01701-9168

DONOT OPEN

FreeSpace Model E-4

400 Watt System Electronics

Made in the U.S.A.

RISQUEDE CHOCELECTRIQUE

NEPAS OUVRIR

100/120V~AC T6.25A, L250V 220/240V~AC T3.15A, L250V

50/60Hz

300W MAX

POWER

OFF

POWER switch

SYSTEM STATUS indicator

Front

Green = Operating Red = Fault

AMP OUTPUTS

AUDIO SOURCES

SYSTEM STATUS

DIRECT

INPUT

STANDBY

USB

STANDBY indicator

Amber = Standby Off = Operating

STANDBY push button

3. Press the STANDBY push button to switch the E-4 hardware to the operating mode. The STANDBY indicator will turn off and the SYSTEM STATUS indicator will be green. (If a sys tem fault condition exists, the indicator will be red.)

Programmer’s Note: If the E-4 system experiences a brownout or power loss, the E-4 hardware will return to power in the STANDBY mode. To return to operation, press the STANDBY button, or press any key on any user Interface.

4. Launch the Installer™ software. See “Using FreeSpace® System Installer™ Software” on page 27 for more information on the launching sequence.

39 of 72

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6.0 E-4 System Setup

6.3 System setup procedure

The ﬁrst time you turn on an E-4 system it loads its factory (default) conﬁguration settings. These settings were stored in the E-4 when it was manufactured. Once your PC is fully connected to the E-4 system, you can use the changes to the factory conﬁguration settings.

The conﬁguration contains the “start-up” settings for the E-4 hardware. Once your work is completed and saved to the E-4 hardware, the new settings become the startup conﬁguration.

1. Select Output Gain for each zone and mute the output. This prevents any damage to speakers during this procedure. This also allows you to work without disturbing any other people in your work area. See “Output gain” on this page.

2. Set up the ZONE for each output channel. Choose a Speaker EQ (default is No EQ) for the speakers you are using. You can use the Subzones table to document your subzones. See

“Zone setup” on page 41.

3. Set up the Input Gain controls for each source. Choose settings for input type, gain, and source leveling. If the input type is set for microphone use, you can turn phantom power (+12V) on or off. See

“Input gain” on page 42.

4. Set up the Output Gain controls for each zone. Set the minimum/maximum gain (volume) limits and the initial gain level. See “Output gain” on this page.

5. Select Source Assign for each zone and assign sources for each. See

“Source assign” on page 44.

6. Set up the source EQ for MIC/LINE 3 and MIC/P AGE/LINE 4 inputs. See

“Source EQ” on page 46.

7. Select Page Set Up. See “Page set up” on page 46.

8. Select EQ for each zone. See “Zone EQ” on page 48.

9. Select the Dynamic EQ state for each zone. See “Dynamic EQ” on page 48.

10. Set up Auto Volume. See “Auto Volume” on page 49.

11. Create a System Schedule. See the “Set Up Schedule mode” on page 34.

12. Click the ﬂash conﬁguration button in the upper toolbox. You will be asked to conﬁrm that you want to save the conﬁgura tion to the E-4 hardware. Once you conﬁrm, the conﬁguration and scheduling settings are sent to the E-4 hardware.

Installer™ software to make

A copy of the Installer™ software design ﬁle is also sent to the hardware.

6.3.1 Output gain

The controls in the Output Gain control panel allow you to control the ampliﬁer output of the E-4 system.

Max. gain stop

Volume

Mute selection

Min. gain stop Signal level meter

Factory default settings

Gain Max. Gain Min. Gain Mute

–20 dB 0 dB –60 dB Off

Output gain circuit block diagram

Gain

adjustment

Output gain setup sequence

1. Set the maximum output gain. This sets the maximum allowed volume within a zone. Play a

source that will be used in that zone and raise the volume slider to the zero level. If it is too loud, lower the maximum gain stop.

Programmer’s Note: If the source still plays too loud at the –30 dB setting, you should lower the tap setting on your speakers for optimal system performance.

Clipping indicator

level

Clipping detector

Signal

meter

40 of 72

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6.0 E-4 System Setup

2. Set the minimum output gain. This sets the desired minimum volume within a zone. Play a

source that will be used in the zone and adjust the volume slider to the desired minimum level. Raise the minimum gain stop up to the volume slider level.

3. Set the initial output gain.

When the E-4 system is switched from standby to operating mode, it loads its conﬁguration (initial settings). Wherever the volume slider is set when you save the conﬁguration becomes the initial gain setting.

Output gain controls

Gain slider – This slide control adjusts the output gain. As you click and drag the slider, you will hear the level change. Release the mouse when you hear the level you want. The output gain is adjusted in an installed system by the Volume up/down buttons on the Standard or Auto Volume user interface.

Programmer’s Note: In zones using Auto Volume, the volume may only be adjusted using the Auto Volume interface.

Maximum and minimum gain stops – The maximum and minimum gain stops determine the maximum and minimum volume levels. Click and drag each stop to the values you want. If the stop meets the volume slider , the volume slider will move with the stop until the new setting is reached.

When a Standard or Auto Volume user interface is used in a zone, the volume control cannot set the gain outside these limits.

Programmer’s Note: In an Auto Volume zone, the maximum and minimum level stops are disabled once an Auto Volume calibration is run.

6.3.2 Zone setup

The Zone Setup control panel allows you to select the EQ for the speakers used in a zone and to document (optional) the number of speakers in a subzone and their tap settings.

Speaker EQ – The Speaker EQ drop-down list contains a list of speakers by model name. The selected loudspeaker equalization settings are sent to the E-4 hardware.

Mute selection – When checked, the Mute selection quiets the output audio.

Signal level meter – The gain signal level meter displays the output level of the E-4 system.

Clipping indicator – The clipping indicator tells you when clipping is occurring in the ampliﬁer. When indicated, clipping is caused by a low/reduced AC line voltage.

Each item in the list indicates a type of mounting: (F) for ﬂush, (S) for surface, and (P) for pendant. Some items are listed more than once because they may be mounted in more than one way. For example, the Model 16 has two entries: one with an (F) for ﬂush, and one with a (P) for pendant.

The list also includes commonly used groupings, such as combinations of FreeSpace® 3 bass and mid/high devices. Use these settings when you are using the FreeSpace 3 bass on the same speaker line with other speakers.

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6.0 E-4 System Setup

Programmer’s Note: If you are using the E-4 system to drive speakers that are not Bose® products, choose one of the four high-pass ﬁlter settings at the end of the list.

If you change the speaker EQ type, any subzones will be automatically changed to the new Speaker EQ setting, and be given the default loudspeaker tap. Depending on the quantity and tap of speakers, you could receive an error message notifying you that the system exceeds the 400 W limitation of the E-4 system. If this problem occurs, delete the subzones from the subzone list. This will allow you to change the speaker EQ type.

Subzones table – The Subzones table allows you to document the speakers used in a zone.

A zone is a group of speakers that are driven by the same ampliﬁer output channel. A subzone is a group of speakers within a zone that use a common tap or are of a common type.

For example, you may have installed ten Model 16 speakers in a dining room and set it up as a zone to be driven by channel 1. In this zone you may have established two subzones, one with ﬁve Model 16 speakers tapped at 8W and the other with ﬁve tapped at 16W.

To add a subzone

Click the Add button. When the Add Subzone window appears, enter a name for the new subzone, select the speaker model installed, enter the quantity, and select a tap setting. The Model Name list will include only speakers that are compatible with the Speaker EQ you selected.

Click OK to add the selections to the subzone table.

6.3.3 Input gain

The Input Gain controls allow you to adjust the input gain level to the system and turn the Source Leveling feature on or off.

Source type

Mic phantom

ower

Factory default settings

Input Type Initial Gain Gain Range Source Leveling

Mic 40 dB 80 dB Off Line 0 dB 60 dB Off Mic Page 40 dB 80 dB On Line Page 0 dB 60 dB On

Programmer’s Note: Input gain controls are disabled if the input channel is routed to a zone in which Auto Volume is enabled (on). You will only be able to change/ adjust the input gain by resetting the Auto Volume for the affected zone.

Gain slider Source leveling

Signal present indicator

Input gain meter

To delete a subzone

In the subzones table, select the subzone to be removed and click the

Delete button.

Input gain circuit block diagram

42 of 72

Gain

adjustment

* Only available for MIC/LINE and MIC/PAGE/LINE inputs.

See “Zone EQ” on page 48 for details.

Signal

detector

Signal

level

meter

3-band

equalizer*

SRC

LEVEL

Source

leveling

Page 43

6.0 E-4 System Setup

Input gain setup sequence

1. Set Source Leveling to Off. This allows you make the initial gain setting.

2. Select the source Type and determine if Mic Power +12V is needed. Set setting if you are using line inputs.

3. Start your input source and monitor its signal on the gain signal level meter. If the level is green, go to step 4. If the level is yellow, increase the input gain until the level is gr een. Likewise, if the level is red, reduce the input gain until the level is green.

Programmer’s Note: You may have to repeat step 3 a few times if the input source is a CD player. The output level of a CD player varies based on the program material.

4. Set Source Leveling to On. If you are using a source that produces a varying output level due to program material, such as a CD player, Source Leveling will compensate for these variances. If your system will be switching between multiple sources, Source Leveling will compensate for vari ances between the different sources.

5. Repeat steps 1 to 4 for the remaining system inputs.

When you turn Source Leveling on, you should only hear a small change in volume. If you hear a large increase, raise the input gain. Likewise, if you hear a large decrease, lower the input gain.

Mic Power to On if required. Leave it in the Off

Input gain controls

Type – This setting determines the initial gain and amount of gain available for the input signal. The following table lists the choices for each input line.

Input Line Input Type(s) Selection Initial Gain

Line 1 Line 0 Line 2 Line 0 Aux/Line 3 Line (default)

Mic

Page/Line 4 Line

Mic Line Page Mic Page (default)

0 40

0 40 0 40

Mic power +12V – This setting enables/disables +12V phantom power only for inputs 3 and 4, which are capable of accepting microphone signals. This power source is used for condenser type microphones.

Gain slider – Click and drag the gain slider up/down to set the input gain. Changes in the slider's position are continuously sent to the E-4 hardware so you will hear the change in gain as it is applied and see the change in the signal level on the meter. The gain range is dependent on the for Line.

Programmer’s Note: When setting up the system, adjust the input gain slider until the meter is green. Occaisional ﬂashes of red are acceptable.

Input gain meter – The input gain meter indicates the average input signal level of the hardware. The meter is divided into three color segments:

Amber = Low signal level Green = Good signal level Red = High signal level

Signal present indicator – The signal present indicator tells you if a signal is being received by the hardware:

Inactive = No signal Green = A signal is present

Source Leveling – The Source Leveling controls allow you to turn this feature on and off. When on, Source Leveling automati cally manages the input gain level so that the full output of the ampliﬁer can be achieved. It does this by adjusting the input sig nal level to obtain the desired ampliﬁer input signal level (+11 dBV). When setting the initial input gain level, check to make sure that Source Leveling is control pane, click on Off switch.

Programmer’s Note: The Source Leveling setting cannot be changed when the Opti-Voice® paging system is on.

More to display the Source Leveling On/

Type setting: 80 dB for Mic; 60 dB

Off. If you do not see this setting in the

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6.0 E-4 System Setup

The following chart shows how Source Leveling operates. For sources whose average input signal level is less than –20 dBV, Source Leveling will add 20 dB of gain. For sources whose aver age signal level is between –20 and 0 dBV, Source Leveling will add the necessary gain so that the average output of the Source Leveling function is +11 dBV. Sources whose average level is greater than 0 dBV will have gain reduction applied so that they maintain an average of +11 dBV at the Source Leveling output.

Gain (dB)

Compression (dB)

-1

-7

-15

-30-25-20-18-15 -13 -10 -8 -5 -3 0 3 5 8 10 13 15 18

Input Signal Level (dBV)

Input signals from –20 to 0 dBV fall within the ideal operating range for the Source Leveling function. This is reﬂected in the color scale used for the input gain signal level meter . If your input signal level is within the green area of –20 to 0 dBV, Source Level ing will effectively manage the input source level.

6.3.4 Source assign

In the Source Assign control, you can choose which system

sources will be available in each zone. The Source Assign control panel lists all system sources on the left and zone sources on the right. Sources are assigned by moving them from the System Sources list to the ZONE Sources list.

Factory default settings

LINE 1 input source is assigned and routed to all four zones.

Programmer’s Notes:

1. Because the E-4 hardware is a router, at least one source must always be assigned to a zone.

2. If you try to remove all sources from a zone, the last

active source will always remain assigned to the zone.

3. This function is disabled for zones in which Auto Volume is enabled (On). If you turn Auto Volume off and change source assignments, you will need to recali brate Auto Volume.

4. Any source assigned to ZONE 4 will also be sent to the AUX OUT/CONTROL output.

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6.0 E-4 System Setup

To assign a source to a zone

1. Select a source in the System Sources list.

2. Click the right arrow (") button to move the highlighted selection to the ZONE Sources list.

When the source appears in the ZONE Sources list, it is assigned to the current zone. Once a source is assigned to a zone, that source is no longer available in the System Sources list and appears grayed out

To unassign a source

1. Select the source in the ZONE Sources list.

2. Click the left arrow (#) button to move the highlighted selection to the System Sources list.

To route a source to a zone

Double-click on the source in the ZONE Sources list. When the source is routed, a sounding-speaker icon appears next to the source.

Programmer’s Note: Sources can also be routed by using the source selection buttons on the user interface installed in the zone.

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6.0 E-4 System Setup

6.3.5 Source EQ

An input source EQ control panel is available for inputs 3 and 4. This three-band equalizer is used primarily to compensate for microphone response or for handling noise.

Click and drag each slider to the level you want. The scale on the left side of the panel is expressed in dB.

Factory default settings

Low Mid Hi

0 dB 0 dB 0 dB

Source EQ operation

The center frequency and shape of each EQ band is ﬁxed and can be adjusted by ±6 dB.

• The low-frequency EQ (LF-EQ) is a low-pass shelf EQ with a corner frequency of 125 Hz and a roll-off of 6 dB per octave.

• The mid-frequency EQ (MF-EQ) has a center frequency of

1.6 kHz and a Q of 1.

• The high-frequency EQ (HF-EQ) is a high-pass shelf EQ with a corner frequency of 8 kHz and a roll-off of 6 dB per octave below this point.

LF-EQ

MF-EQ

HF-EQ

∑

6.3.6 Page set up

The Page Set Up control panel is used to set up the MIC/PAGE/ LINE input for paging. The page setup is available when “Mic/ Page” or “Line/Page” is selected for “Type” in the Input Gain con trol panel.

Factory default settings

Detection Type

Contact Closure Off –20 dB 2.0 sec.

Opti-Voice

Paging System

Page setup sequence with the Opti-Voice paging system

Since the Opti-Voice paging system implements predetermined settings for ducking depth and release time and source EQ, this is the most efﬁcient setup method. After the Opti-Voice paging system is turned on, the rest of the setup depends on the chosen detection method.

1. Set Opti-Voice to On in the Page Setup control panel.

2. Select a detection method. If you select Contact Closure, there is no further setup required. If you select Auto Detec tion, continue.

3. Ask another person to talk into the paging microphone at the lowest volume that will normally be used.

4. Lower the Page Threshold slider to the level where the page active light is constantly on.

5. Check your page threshold setting to make sure that no environmental noise, such as a music source or background noise, triggers the page.

If you hear the music source continually ramping up and down, the environmental noise is triggering a page. If this

Ducking

Depth

Release

Time

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6.0 E-4 System Setup

occurs, try one of the following:

• Increase the page threshold level.

• Lower the taps on the speakers near the page mic.

• Change the page mic location.

Page setup sequence without the Opti-Voice® paging system

1. Set Opti-Voice to Off in the Page Setup control panel. This enables the Ducking Depth and Release Time controls.

2. Set the Ducking Depth to the amount in dB that the music will be reduced to once a page is triggered.

3. Set the Release Time to the length of time (secs.) it will take for the music to return to its original level. The Release Time can determine the overall quality of a page.

• If you pause frequently while paging or release the pushto-talk (PTT) button during a page, use a long Release Time.

• If the Release Time is too short, the music will quickly return and the level will be reduced once the page continues.

Page setup controls

Detection type – Determines the page trigger method:

• Auto – for automatic sensing of input signal level. Requires that the Page Threshold level be set.

• Contact Closure – for PTT microphones. This setting disables the Page Threshold slider control.

Opti-Voice selection – The Bose® proprietary Opti-Voice paging system provides the appropriate sound level regardless of varia tions in speech projection. When on, this feature implements predetermined settings for Ducking Depth and Release Time, and source EQ.

Programmer’s Note: When the Opti-Voice paging system is on, the Ducking, Source Leveling, and Input EQ controls are unavailable. Only when the Opti-Voice paging system is off can these values be changed individually.

Page Threshold slider – The Page Threshold slider setting determines the signal level required to trigger a page when Auto Detection is used.

Page Active indicator – The Page Active indicator will be green when a page is being sent.

Ducking parameters – There are two settings for ducking:

• Depth – Determines how much to reduce the level of program material when a page starts.

• Release Time – Determines the amount of time to keep program material reduced after a page ends.

Page setup operation

When a page signal is triggered, the music signal is ramped down according to the ducking time. The ducking time is preset at 20 ms for automatic detection and 0 ms for contact closure triggering. The music level is reduced by the ducking depth which can be adjusted using the ducking depth control. Ducking depth is adjustable from 0 to –40 dB. Once a page is completed, the music volume is ramped up according to the ducking release time, which is adjustable from 0 to 5 seconds in 0.5-second increments.

Music signal

Ducking

depth

0 to –40dB

Page signal

Ducking

time

Fixed at 20 ms for Auto Detection, 0 ms for Contact Closure Detection.

Programmer’s Note: The attack time for a page is approximately 1 millisecond for a PTT input and 20 milliseconds for a voice-activated input.

Release time

0 to 5 secs

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6.0 E-4 System Setup

6.3.7 Zone EQ

The Zone EQ control panel provides a three-band equalizer for adjusting the sound quality of the zone.

Click and drag each slider to the level you want. The scale on the left side of the panel is expressed in dB.

Factory default settings

Low Mid Hi

0 dB 0 dB 0 dB

ZONE EQ operation

The center frequency and shape of each EQ band is ﬁxed and can be adjusted by ±6 dB.

LF-EQ

MF-EQ

HF-EQ

∑

6.3.8 Dynamic EQ

The Dynamic EQ control panel provides an on/off control to enable/disable Dynamic Equalization in the current zone.

Dynamic EQ should only be used in the following conditions:

• The system contains extended bass or a FreeSpace® 3 speaker system.

•A user interface is being used to control the volume and no autotransformers are being used on the speaker line. When autotransformers are used, the system cannot accurately monitor the output level of the system, and as a result, cannot provide the appropriate response for the current listening level.

Factory default settings

Dynamic EQ is set to Off.

Dynamic EQ compensates for a perceived loss of bass response at low listening levels. Based on the current output level of the E4 system, additional bass and high frequency will be added.

For Dynamic EQ to operate correctly, make sure the hardware is connected properly:

• An Auto Volume or Standard wall plate must be connected to the WALL PLATE CONNECTION input connector.

• The speaker(s) must be directly wired to the zone AMP OUT connector.

• The low-frequency EQ (LF-EQ) is a low-pass shelf EQ with a corner frequency of 125 Hz and a roll-off of 6 dB per octave.

• The mid-frequency EQ (MF-EQ) has a center frequency of

1.6 kHz and a Q of 1.

• The high-frequency EQ (HF-EQ) is a high-pass shelf EQ with a corner frequency of 8 kHz and a roll-off of 6 dB per octave below this point.

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6.0 E-4 System Setup

• DO NOT USE AUTOTRANSFORMERS: DO NOT use an auto transformer on the speaker line to adjust the speaker volume. Dynamic EQ will not operate properly with this added component.

Volume

E-4 System

AMP OUT 1

USER INTERFACE

CONNECTION 1

Adjustment

ZONE 1

Speaker

Standard User Interface or Auto Volume Interface

6.3.9 Auto Volume

The Auto Volume function controls the volume level in a zone in relation to its environmental noise. Using the Auto V olume control pane, you can conﬁgure and calibrate this function for each zone.

Auto Volume On/Off states

Auto Volume Tracking settings

IMPORTANT: Before you calibrate

Auto Volume

• Make sure that the system hardware installation is complete and that all components (sense microphones, speakers, and Auto Volume user interfaces) are properly connected. Remem ber that speakers must be directly wired to the zone's AMP OUT connector on the E-4 rear panel.

Sense

Mic

• Make sure that you have selected the correct speaker model in the ZONE setup pane.

• Make sure that the output gain is set so that the source can be heard without dropping out.

• Check that sources have been assigned to zones.

• Check the EQ pane and make any ﬁnal adjustments.

• DO NOT USE AUTOTRANSFORMERS: Speakers must be directly wired to the AMP OUT connector of the E-4 hardware. DO NOT use an autotransformer on the speaker line to adjust the speaker volume. If you lower the volume using an autotransformer, the E-4 system will raise the volume. Like wise, if you raise the volume using an autotransformer, the E-4 system will lower the volume.

E-4 System

AMP OUT 1

USER INTERFACE

CONNECTION 1

ZONE 1

Speaker

Auto Volume Interface

Auto Volume calibration button

Auto Volume calibration reset button

Factory default settings

Auto Volume Auto Volume Tracking

Off Equal to background noise

49 of 72

Sense

Mic

E-4 System

AMP OUT 1

USER INTERFACE

CONNECTION 1

Volume

Adjustment

ZONE 1

Speaker

Auto Volume Interface

Page 50

6.0 E-4 System Setup

Auto Volume setup procedure

Programmer’s Note: While the Auto Volume calibration is running,

• DO NOT use the paging microphone.

•Wait for the Auto Volume calibration to ﬁnish before adjusting other system functions.

• DO NOT disconnect the RS-232 cable from the E-4 unit.

1. Click button for the zone you want to calibrate.

2. Click More to display the Auto Volume Tracking settings.

3. Select Auto Volume Tracking settings for the type of system used in this zone. See “Auto Volume Tracking settings” on page 53.

4. Click Set Up to start the Auto Volume Setup process. The initial Auto Volume Setup dialog appears in the window.

5. Click Continue. Your Auto Volume Tracking settings are conﬁrmed. If the tracking settings are not correct, click the Cancel button, change the settings, and start the setup process again.

6. Click Continue. All sources assigned to the zone are listed in the window. You are asked to conﬁrm that a source is connected and operating. If the source list is wrong, click the Cancel button, use the Source Assign control panel to correct the problem and start the process again.

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6.0 E-4 System Setup

7. Click Continue. You are asked to make volume adjustments. The maximum output gain should always be greater than –20 dB for proper Auto Volume operation. If the maximum output is less than –20, the source calibration procedure might fail. If your system is too loud in this range, change the speaker taps to a lower setting.

8. Click Continue. The source calibration process takes about three minutes per source. For each source, the input gain is measured and optimized, and the source level is activated. When this is done, the software displays a conﬁrmation.

9. Click Continue to begin the Zone Microphone Calibration. This is performed using a test signal at the maximum zone volume and takes about 5 minutes. If this process fails, check the sensing microphone installation and make sure all sources are operating.

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6.0 E-4 System Setup

10. The software will notify you when the microphone calibration is completed. A list of controls that are disabled when Auto Volume is on will appear in the window. Click Auto Volume Setup. The Auto Volume function is now

Finish to exit

On.

Resetting a calibrated Auto Volume zone

To cancel the calibration in an Auto Volume zone, click the Reset button. The Reset button is available only after a zone is suc cessfully calibrated.

Programmer’s Note: Be sure you want to reset the zone before you click the Reset button. If you reset the zone, you will need to run the Auto Volume setup process again before you can use Auto Volume.

When you click the Reset button, you are asked to conﬁrm if you really want to reset the zone.

If you click Yes, all controls and functions that were disabled in the Auto Volume state will be accessible again, but you will need to recalibrate before you can use Auto Volume again.

If you click No, the zone will remain in the calibrated state.

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6.0 E-4 System Setup

When to repeat the Auto Volume calibration

You will need to repeat the Auto Volume process if:

•You reset a calibrated zone.

•You physically replaced source hardware.

• The source hardware has an output control and you changed

its setting after you calibrated Auto Volume.

•You have ﬂashed an existing ﬁle into a new hardware device in

a new installation. The calibration speciﬁc to the new installa

tion needs to be performed.

•You upgraded the E-4 microcontroller code.

Auto Volume controls

Auto Volume On/Off states – These selections appear grayed if the Auto Volume function is not calibrated. After a successful cal ibration, these controls are accessible and you can turn Auto Volume on and off.

Auto Volume Tracking settings – These settings determine the ratio between the background noise and the program material. Once calibrated, the Auto Volume function maintains this ratio.

For this type of system

Background system (music level

is …” to

less than

is less than room noise level)

Set “Program

Foreground system (music level

equal to NA

equals room noise level) Performance system (music level

more than 1 or 3 dB

is greater than room noise level)

Set Up (Auto Volume calibration) button – Clicking this button starts the calibration process. Once calibration is complete, the following functions are disabled for the applicable zone:

• Input Gain controls for all sources routed to the zone

• Source Type for all sources routed to the zone

• Source Assign

• Auto Volume Tracking

• Output Gain controls

Set “noise by …” to

1, 3, or 6 dB

Auto Volume reset button – Clears the Auto Volume calibration within the selected zone and enables the functions that were pre viously disabled. This button is enabled only when the zone is in a calibrated state. See

“Resetting a calibrated Auto Volume

zone” on page 52.

Auto Volume operation

The Auto Volume function monitors the zone source input r elative to the zone sensing microphone input. Based on these two inputs, the Auto Volume function determines if the output gain for the zone must be raised or lowered to maintain the predeter mined program-to-noise ratio.

Zone source input

Zone sense mic

Gain

• When the Auto Volume function is on, pressing Volume ▲ or Volume ▼ on the Auto Volume user interface will turn Auto Volume off. To turn Auto Volume on again, press the Auto

Volume key .

• When you turn Auto Volume off on the user interface, the user interface remembers the volume level setting at the time you turned Auto Volume off. The volume level returns to that level when Auto Volume is turned on again.

• When Auto Volume is on in two adjacent rooms and they are acoustically coupled, the same source must be played in each room. If this is not the case, each zone with Auto Volume will sense the other source as noise and try to overcome that noise. The result would be a very loud system.

Band-Pass

Filter

Band-Pass

Filter

Auto

Volume

Algorithm

Zone

Output

Gain

53 of 72

Page 54

7.0 User Interface Operation

7.1 Introduction

A standard or Auto Volume user interface can be installed in a zone to provide the user with source selection and volume controls.

The keypads on the two user interfaces differ only by the lower right key:

The standard keypad has a Mute key , and

the Auto Volume keypad has an Auto Volume on/off key .

Standard User

Interface Keypad

Auto Volume User

Interface Keypad

7.2 Standard user interface operation

• Press source 1, 2, or 3 to select the audio source assigned to that line. A green LED indicates the active source.

•Press the Volume ▲ or Volume ▼ button to increase or decrease the volume in 2 dB steps. Press and hold for continu ous increase/decrease. The red LED lights when either button is pressed.

• The maximum/minimum volume setting is determined by the min./max. level stop settings in the Output Gain control pane.

•Press the Mute button to silence the listening area. When the area is muted, a yellow LED ﬂashes. Press again to restore the volume.

Select LINE 1 input source

Select LINE 2 input source

Select MIC/ LINE 3 input source

Volume up (2 dB steps)

Volume down (2 dB steps)

Mute

Programmer’s Note: When the E-4 hardware is in STANDBY, pressing any key on either keypad will switch the system on.

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7.0 User Interface Operation

7.3 Auto Volume interface operation

• Press source 1, 2, or 3 to select the audio source assigned to that line. A green LED indicates the active source.

•Press the Volume ▲ or Volume ▼ button to increase or decrease the volume in 2 dB steps. Press and hold for continu ous increase/decrease. The red LED lights when either button is pressed.

• The maximum/minimum volume setting is determined by the min./max. level stop settings in the Output Gain control pane.

•Press the Auto Volume button to turn the Auto Volume function on or off. The yellow LED lights when Auto Volume is on.

• When the Auto Volume function is on, pressing Volume ▲ or Volume ▼ turns Auto Volume off. To turn Auto Volume on

again, press the

• When you turn Auto Volume off using the wall plate, the system remembers the volume level setting at the time you turned it off. The volume level returns to that level when Auto Volume is turned on again.

Select LINE 1 input source

Select LINE 2 input source

Select LINE 3 input source

Auto Volume button.

Volume up (2 dB steps)

Volume down (2 dB steps)

Auto Volume on/off

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Page 56

8.0 E-4 System Troubleshooting

8.1 Introduction

This section provides troubleshooting guidelines to use for solving any problems you may encounter while installing and servicing E-4 systems.

8.2 E-4 hardware indicators

8.2.1 Normal operation

These are the indications of normal operation.

STANDBY

Unlit

SYSTEM STATUS

Green

AMP OUTPUTS

Unlit or Green

AUDIO SOURCES

Unlit, Amber, or Green

DIRECT INPUT

Unlit

8.2.2 System fault

A red SYSTEM STATUS LED indicates that the E-4 received an error from one of its many internal components. A red SYSTEM STATUS LED after AC power is switched on may be caused by:

•A Power-On Self-Test failure

•A DSP error

• The DSP is ofﬂine

AMP OUTPUTS

1 2 3 4

AUDIO SOURCES

1 2 3 4

SYSTEM

STATUS

STANDBY

DIRECT

INPUT

When you check the error log using the FreeSpace® system Installer™ software you can identify the cause of the error, and determine an appropriate solution.

SYSTEM STATUS

indicator is red

Switch the E-4 unit to STANDBY and then

Have you cycled

the E-4 in and out

of STANDBY?

Yes

Have you cycled

the E-4 power

on and off?

Yes

Have you

disconnected all

input/output

cables?

Yes

back to active again. If the SYSTEM STATUS is green, the system may have logged an error. Check the Installer™ software Error Log.

1. Switch the E-4 unit to STANDBY.

2. Set the POWER switch to OFF.

3. Wait for STANDBY indicator to turn off.

4. Set the POWER switch to ON.

5. Press the STANDBY switch.

1. Switch the E-4 unit to STANDBY.

2. Set the POWER switch to OFF.

3. Disconnect all input/output signal cables.

4. Set the POWER switch to ON.

5. Press the STANDBY switch.

6. Reconnect one cable at a time and check the Error Log.

AMP OUTPUTS

1 2 3 4

AUDIO SOURCES

1 2 3 4

SYSTEM

STATUS

DIRECT

INPUT

System logged an error – Check the Installer™ software Error Log.

STANDBY

To determine the severity of the error, cycle the E-4 unit power off and back on again. If the SYSTEM STATUS indicator is now off, the E-4 system has logged an error, but is still operational.

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Contact Bose

Customer Service.

Page 57

8.0 E-4 System Troubleshooting

8.2.3 Amplifier fault

The AMP OUTPUT LEDs work in pairs (1 and 2, 3 and 4) and indicate the operating status of the four ampliﬁer output channels.

AMP OUTPUT

indicators

are red

AMP OUTPUTS

1 2 3 4

SYSTEM

STATUS

Check for

• Shorted wiring

• Overdriven amplifier (reduce output gain)

AUDIO SOURCES

1 2 3 4

DIRECT

STANDBY

INPUT

• Transformer saturation

• Entry in Installer™ software error log

When an ampliﬁer fault occurs, the ampliﬁer mutes its outputs and indicates an error. After a short period of time the ampliﬁer will try to operate again. If the fault condition persists, the ampli ﬁer will attempt to restart six times, after which it will remain muted.

Ampliﬁer faults are typically caused by a shorted speaker line, an overdriven ampliﬁer, or a saturated output transformer.

•To check for a shorted speaker line, remove the speaker connection from the ampliﬁer channel. If this resolves the problem, locate and correct the shorted loudspeaker line.

•To make sure that you are not overdriving the E-4 output, change to a different source. If the problem no longer exists, use the

Installer™ software to reduce the input level of the

original source that was overdriving the output.

•To make sure an output transformer is not being saturated, check to see if the correct speaker EQ setting is selected.

If none of these actions solve the problem, read the instructions in the following ﬂow chart or check the error log using the Installer™ software.

• Check the number of loudspeakers

Has the E-4 unit

shut down during

operation?

Is SYSTEM

STATUS indicator

green?

Yes

Does the Installer™

software Error Log list

any amplifier

faults?

Contact Bose

Customer Service.

Yes

connected to the E-4 unit. Verify that the total sum of loudspeaker taps connected to the E-4unit does not exceed 400W.

• Verify that there are no shorts on the speaker output lines.

• Switch POWER to OFF.

• Disconnect the load and switch POWER to ON.

• Verify that there are no shorts on the speaker output lines.

See amplifier fault troubleshooting section for course of action.

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8.0 E-4 System Troubleshooting

8.2.4 Input clipping

If clipping is occurring at the input of an ampliﬁer channel, the source LED will blink red.

AMP OUTPUTS

1 2 3 4

AUDIO SOURCES

1 2 3 4

SYSTEM

STATUS

STANDBY

DIRECT

INPUT

If this fault occurs:

• Reduce the output gain of the source, or

• Using the Installer™ software, reduce the input gain for the channel that is clipping.

8.2.5 Direct input is active

If the DIRECT INPUT LED is red:

• Check that the DIRECT INPUT/CONTROL contact closure is in the closed position.

• Check the device to which this input is connected.

AMP OUTPUTS

1 2 3 4

AUDIO SOURCES

1 2 3 4

SYSTEM

STATUS

STANDBY

DIRECT

INPUT

8.2.6 No STANDBY and SYSTEM indicators

STANDBY & SYSTEM LEDs are off

AC power is on

Is E-4 unit

plugged into an

AC source?

Yes

Is the E-4

POWER switch

set to ON?

Yes

STANDBY

indicator

on?

SYSTEM STATUS

indicator red?

Yes

Plug the E-4 unit into an AC receptacle.

Set E-4 POWER switch to ON.

Press the STANDBY switch on the E-4 front panel.

• Connect your PC to the E-4 unit and read the Error Log.

• Check the results of the Power On Self Test (POST).

• Use the POST troubleshooting chart for course of action.

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Is the unit properly

configured for the line

voltage?

Yes

Contact Bose

Customer Service.

• Set E-4 POWER switch to OFF.

• Verify that E-4 unit is configured for the correct AC line voltage.

• Verify that the fuse is good.

• Verify that the AC receptacle is live.

• Set POWER switch to ON.

Page 59

8.0 E-4 System Troubleshooting

8.3 FreeSpace® E-4 system Error Log

The FreeSpace E-4 system Error Log is displayed when the Installer™ software is in the Service Hardware mode.

8.3.1 Contents of the Error Log

The Error Log displays E-4 system hardware version numbers and records all alarms and their causes as shown in the following example.

Hardware version numbers

Type of alarm

Name of test

Test results

8.3.2 Hardware configuration

The E-4 system hardware version numbers appear at the top of the Error Log listing. These are the version numbers of the soft ware installed in the E-4 hardware at the time of manufacture. These version numbers do not pertain to the FreeSpace system Installer™ software installed on your PC.

8.3.3 Power-on self-test results

The power-on-self test (POST) results ar e only displayed when an error has occurred. The POST test checks the basic operation of the E-4 hardware to determine if it is capable of properly per forming audio processing and ampliﬁcation. During the POST test, six major components of the hardware are tested.

Bose® FreeSpace E-4 Error Log

------------------------------------------------Microcontroller: v1.0.0.64 DSP: v1.0.71.0 Peripheral: v1.0.0.10 Lower Amplifier: v1.0.0.14 Upper Amplifier: v1.0.0.14

------------------------------------------------power-on self-test alarm (ok) 2002/12/31 23:59 host controller test:

[OK]

host controller flash test:

[OK] peripheral controller test: DSP test: 1 upper amplifier test:

[OK]

• Host controller – The host contr oller monitors and controls the operation of the E-4 hardware. A host controller failure will cause the message, “Power-on self-test incomplete” to appear in the host controller test section. The failure type for a host controller is an SRAM address failure. If this occurs, contact Bose Customer Service. See

“Customer support” on page 64.

• Flash memory test – The ﬂash memory contains the conﬁguration, design ﬁle, and system event schedule. A ﬂash failure will cause the message, “Power-on sel-test incomplete” to appear in the host controller ﬂash test section. If this occurs, contact Bose Customer Service. See

“Customer support” on

page 64.

• Peripheral controller –

The peripheral controller monitors contact closures, front panel connections and user interface connections for incoming event messages. Any failures in these areas will cause the message, “Power-on self-test incomplete” to appear in the peripheral controller ﬂash test section. If a 12C, or code failure occurs, contact Bose Customer Service. See “Customer support” on page 64. If a user interface failure occurs, check the user interface wiring for shorts.

• DSP test – The DSP performs all signal processing and routing functions. If a DSP error occurs, contact Bose Customer Ser

vice. See “Customer support” on page 64.

• Upper and lower ampliﬁer test – The upper and lower ampliﬁer test determines if the ampliﬁers are operating properly. An ampliﬁer failure will cause the message, “Power-on self-test incomplete” to appear in the upper or lower ampliﬁer section of the POST test results. If a 12C, or code failure occurs, contact Bose Customer Service. See

“Customer support” on page 64. Additional details on the exact cause of an ampliﬁer failure can be found in the ampliﬁer section of the Error Log.

• Front panel board test – The front panel board test determines if the USB port is working properly. A USB failure will cause the message, “Powe-on self-test incomplete” to appear in this section of the POST results. If a USB failure occurs, con tact Bose Customer Service. See “Customer support” on page 64.

Programmer’s Note: The USB port is not currently used for communication with the E-4. If a USB failure occurs, the E-4 will still function normally for audio processing and ampliﬁcation.

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8.0 E-4 System Troubleshooting

8.3.4 Amplifier alarms

Each ampliﬁer section monitors its own operation and performance. If a fault condition occurs, it is reported in the Ampliﬁer Alarm section of the Error Log. Upper ampliﬁer alarms affect channels 1 and 2, and Lower ampliﬁer alarms affect channels 3 and 4.

The ampliﬁer section of the alarm log indicates the following:

• Alarm type – The generated alarm type is the ﬁrst item.

• Ampliﬁer status – When an alarm is generated, the ampliﬁer reports its current operating status for diagnostic purposes. The following items are reported in the status:

Date & Time: Date and time when alarm condition occurred. Rail Voltage: The ampliﬁer positive and negative rail voltages.

Normally, the ampliﬁer rail voltage should be between 100V and 190V. Voltages outside this range will cause the ampliﬁer to shut down. In the 70V mode, a normal rail voltage is approx imately 125V. In the 100V mode, a normal rail voltage is approximately 165V.

Temperature: The internal operating temperature of the ampliﬁer . Normally, this will be between 0 and 160 degrees Fahrenheit.

Output Voltage: The actual output voltage of the ampliﬁer at the time of the alarm.

Output Current: The actual output current of the ampliﬁer at the time of the alarm.

Input Status: The status of the input signal to the ampliﬁer. Possible status messages are DC sense fault, ampliﬁer module fault, AC power fault, sleep mode, high-frequency sense fault, and retry fault.

Output Status: The status of the ampliﬁer output at the time of the alarm. Possible status messages are “ampliﬁer module muted,” and “speaker relay off.”

Fan Speed: The fan speed at the time of the alarm. Operating Mode: The current setting of the output voltage

select switch, 70V or 100V.

Amplifier alarms – using output voltage and current

Reviewing the output voltage and current can help to diagnose a problem. Compare the output voltage and current for each of the two ampliﬁer outputs to determine the nature of the problem.

High Current

(>2A)

High Current

(<1A)

High Voltage

(>20V)

Driving an impedance <12Ω

• Reduce total speaker load

• Check for partial short of speaker line Loudspeaker trans-

former saturation at low frequency

• Check for proper Speaker EQ setting

• Set Speaker EQ to high-pass ﬁlter

Low Voltage

(<20V)

Short on speaker line

Amplifier alarms – using rail voltage

Normally, the ampliﬁer rail voltage should be between 100V and 190V. In the 70V mode a normal rail voltage is approximately 125V. In the 100V mode a normal rail voltage is approximately 165V.

By comparing the + and – rail voltages, you can determine if you are driving an impedance which is too low (<12 the difference between the two rails will probably be greater than 20%.

If one of the rails shows a voltage, and the other does not, the ampliﬁer should be replaced.

As you review all alarm records you can compare the plus rail voltage in each of the status sections. For example, a drop of 50% in one status could indicate a brownout condition occurred.

Ω). In this case

Amplifier alarms – input and output status

The Input and Output Status sections display the fault condition which caused the alarm and the current status of the ampliﬁer output.

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8.0 E-4 System Troubleshooting

A number of fault conditions can be displayed in the Input Status section:

DC Sense Fault: A power supply fuse, output FET, ampliﬁer module, or some combination of the above has blown. The unit should be replaced.

Ampliﬁer Module Fault: When the Ampliﬁer Module fault occurs by itself it can be caused by any of the following:

• Shorted speaker line – Check the loudspeaker line for shorts.

• System power exceeds 400W – Check that system power does not exceed 400W.

• Speaker transformer saturation – Check that proper speaker EQ is being used or use a high-pass ﬁlter for speaker EQ.

• Line voltage too high (surge) – Check Error Log for a rail voltage that exceeds 150V, in 70V mode, or 190V, in 100V mode.

• Line voltage too low (brownout) – Check Error Log for a rail voltage which is lower than normal by at least 20%.

• 70/100V mode switched with unit operating – Check that output voltage and AC input voltage selector are correct.

• Blown power supply fuse (as opposed to AC line fuse) – Replace the E-4 unit.

AC Power Fault: Might be an AC line dropout or severe brownout, or simply AC power turned off without ﬁrst placing the E-4 in standby mode. You can check that the power has been removed from the E-4, or that you experienced a power dropout.

Sleep Mode: The host microcontroller has told the ampliﬁer and power supply to turn off. This only occurs in conjunction with another alarm (usually AC power fault), because it in itself is not an alarm condition. When an AC power dropout occurs, the ampliﬁer immediately shuts the ampliﬁer and speaker relay off, then the other processing is shut down. This all happens fast enough to prevent data loss or corruption, and to prevent loud pops in the speakers. When this occurs you should check the alarm history to determine what other faults occurred at this time.

High-Frequency Sense Fault: This protection mode is designed to prevent damage to the ampliﬁer or speakers from excessive high-frequency audio or ultrasonic energy. The ampliﬁer is not capable of sustained operation at full power in the 10kHZ to 20kHz (+) range.

Generally, this fault results in a one-time 3-second dropout. If, when the ampliﬁer tries to restart after 3 seconds, the excess HF is still present, the amp (and speaker relay) will remain off for another 3 seconds and the loop repeats. Six of these in a row will cause the amp to shut down, and will trigger a Retry Fault.

When this fault occurs you can check your program material for excessive high-frequency content, or for a potential ground loop which has created an oscillation internal to the E-4 unit. You can also reduce the output gain for this ampliﬁer zone in an attempt to reduce the high-frequency energy going to the ampliﬁer.

Retry Fault: The ampliﬁer has tried to start up or recover from a fault condition at least six times. When this occurs, you will need to place the E-4 unit in standby and then press the STANDBY button again to clear the fault, at which time the E-4 unit will again try to start up.

When this occurs you should check the alarm history section of the Ampliﬁer Alarm to determine the exact fault type that trig gered the Retry Fault.

Input and output alarm history

This part of the Error Log displays the sequence of fault conditions where “0” is the initial fault reported followed by “1-6”. These occur over a very short period of time.

8.3.5 Solving faults reported in the Error Log

When errors are reported in the Error Log, you can try to solve the problem by performing one of the following actions:

• On the E-4 rear panel, turn the POWER switch to OFF. Wait a

few seconds and turn the POWER switch to ON. Then press STANDBY on the front panel.

• On the E-4 rear panel, turn the POWER switch to OFF. Discon-

nect all input/output signal cables. Wait a few seconds and turn the POWER switch to ON. Then press STANDBY on the front panel. Reconnect one cable at a time and check the Error Log.

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8.0 E-4 System Troubleshooting

8.4 Common problems

8.4.1 Communications port error

When you receive the communications port error dialog, the FreeSpace E-4 system on the COM 1 port.

This normally occurs due to one of three reasons:

• The PC and E-4 are not connected via a “straight-wired” serial cable.

• Another software application has control of the serial port. Applications such as the Palm OS, or other audio applications control the serial port while they are open. Close these applica tions and click the Try Again button.

• The E-4 is connected to another communications port. If this is the case you should select the appropriate COM port and click the

system Installer™ softwar e was not able to locate an

Try Again button.

Programmer’s Note: Before dismissing the “Choose COM port” dialog, select the COM 2 port and click Try Again. Not doing this will cause the COM 1 port to be locked.

8.4.2 No audio in zone

If the system is powered on and operational, but there is no sound, check the following:

• Do the front panel LEDs indicate normal operation?

• Is the source operating?

• Is routing correct?

• Is output gain correct?

• Is the output gain muted?

• Is cabling correct?

No audio in a zone

• Make sure that the audio sources are

Are the

AUDIO SOURCES

indicators

green?

Yes

AMP OUTPUT

indicator

red?

Are the

AMP OUTPUTS

indicators

green?

Yes

connected to the E-4 LINE inputs and that there is an input signal from the source.

• Using the Installer™ software, check that the input gain is raised.

• Make sure the source is on.

The amplifier is in “protect” mode. Disconnect the load and see if the output indicator changes to green. If so:

• Check for a short in the output line,

• Make sure no small strands of wire are touching other wires,

• Make sure speakers are functioning correctly, or

• Using a voltmeter, check for a voltage drop in the power line when amplifier is being driven excessively hard.

Check system settings using Installer™ software:

• Make sure sources have been assigned to the correct zones.

• Check that the input gain is raised and the output is not muted.

• Check the wall plate to see if an unused source input is selected.

62 of 72

Contact Bose

Customer Service.

Page 63

8.0 E-4 System Troubleshooting

8.4.3 User interface keypads do not

operate correctly

• Check wiring of RJ-45 connectors.

• Check for breaks/shorts in cable.

• Using the Installer™ software, check the Error Log for a peripheral controller error.

User interface keypads exhibit strange behavior

Is the keypad

connected to the correct

zone on the

E-4 unit?

Yes

Is the keypad

connector wiring

correct?

Yes

Connect the keypad to the correct zone on the E-4 unit.

Correct the keypad connector wiring.

8.4.4 Bad sound in a zone

Bad sound

Is the sound

unnatural?

Is the

AMP OUTPUT

indicator flashing?

Are input and

output indicators green

and sound is

distorted?

Yes

Verify that the correct Speaker EQ is selected in the Installer™ software for that zone.

Verify that the speakers are wired in phase. Check the rear panel markings.

Reduce the input gain using Installer™ software until the indicator is solid green.

Verify that the input source signal is clean. If source is from a mixer, decrease the mixer gain.

Does the Installer™

software Error Log list any

peripheral controller

faults?

Contact Bose

Customer Service.

Yes

See troubleshooting for the peripheral controller.

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Is the input

signal clean at the

E-4 input?

Verify source

hardware settings.

Yes

Verify that the loudspeakers are not being overdriven or are damaged.

Verify that the total load impedance presented to the E-4 output is within specified limits for the selected mode of operation.

Page 64

8.0 E-4 System Troubleshooting

8.4.5 User interface selects unassigned

sources

The user interface keypad controls the router stage of the DSP. If the keypad source buttons are selecting an unassigned source, make changes to the wiring of the RJ45 connector.

If you do not want a particular source available in the zone, you can disable the source key by making the following wiring modiﬁ cations to the ethernet cable.

•To disable source 1 key: make no connection at position 4.

•To disable source 2 key: make no connection at position 5.

•To disable source 3 key: make no connection at position 6.

568A Color Code

1 – White/Orange 2 – Orange

RJ45

3 – White/Green 4 – Blue 5 – White/Blue 6 – Green 7 – White/Brown 8 – Brown

8.4.6 Auto Volume does not calibrate

Auto Volume calibration may fail if the process cannot obtain an adequate source level. This may be due to:

• Speakers are tapped too high

• Maximum output gain is less than –20 dB

• Source is not operating

• Source level is too low Calibration could also fail if the calculated loop gain is not within

required limits. This may be due to:

•Broken microphone cable

• Speakers are not connected

• Sensing microphone is not connected, or is connected to the wrong zone

8.4.7 All front panel LEDs are amber

If all front panel LEDs are amber, the E-4 unit most likely will not come out of standby mode. Use the “Enable E-4 events” applica tion located in…

C:\Program Files\FreeSpace Installer 1.0\Utilities.

8.5 Customer support

8.5.1 Technical assistance

If you need further technical assistance, contact your local Bose representative, or send an email to the address for your area:

North America

InstallerSupportNA@bose.com

Europe

InstallerSupportEUR@bose.com

Asia, Australia, India and Middle East

InstallerSupportABDG@bose.com

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8.0 E-4 System Troubleshooting

8.5.2 Reporting software bugs and issues

Please email any problems, issues, or software bugs to your local Bose representative. Please include the following information:

• Software version

• E-4 Error Log ﬁle

• Computer make, model, and conﬁguration (hard drive storage capacity, processor speed, and amount of installed RAM)

• Description of the problem – Can it be reproduced? If so, what steps can be taken within the application to make the problem manifest itself?

If possible, attach the Installer™ software diagnostic ﬁles. The Installer software creates thr ee important diagnostic ﬁles (output, error, and log) each time the software runs. These ﬁles are dis tinct from the E-4 Error Log ﬁle which refers to the hardware errors and can be accessed using the Installer™ software.

The name of each Installer diagnostic ﬁle includes the date and time that

These ﬁles are automatically written in the “temporary ﬁle” directory of your computer’s operating system. Use the standard Windows “Search” of “Find” feature to look for ﬁles named

FreeSpaceInstallerOutput, FreeSpaceInstallerErrors, and FreeSpaceInstallerLog

on all local hard drives. This feature can be found in the Start menu of Windows 98, NT, 2000, or XP. Once the search is com plete, sort the listing by date to show the diagnostic ﬁles most recently created by the

Installer software was run. For example:

FreeSpaceInstallerOutput-Oct 8, 2002 12_53_05 PM.txt FreeSpaceInstallerErrors-Oct 8, 2002 12_53_05 PM.txt FreeSpaceInstallerLog-Oct 8, 2002 12_53_05 PM.txt

Installer™ software.

Service tab within the

To find the temporary file directory…

For Windows 2000, or Windows XP:

1. Right-click My Computer on the Windows desktop.

2. Select the Properties menu item.

3. Click the Advanced tab.

4. Click the Environment Variables... button.

5. Scroll down to the value of variable TEMP under “User variables”. If, and only if, it is not found there, look under System variables instead.

For Windows NT:

1. Right-click My Computer on the Windows desktop.

2. Select the Properties menu item.

3. Click the Environment Variables tab.

4. Scroll down to the value of variable TEMP under User vari-

ables. If, and only if, it is not found there, look under System variables

instead.

For Windows 98

1. Click on the Start menu.

2. Select Run...

3. Type command and hit Enter.

4. Type echo %TEMP% and hit Enter.

5. Write down the displayed value of variable TEMP.

6. Type exit and hit Enter.

Typical values for TEMP are C:\WINNT\TEMP, C:\windows\TEMP, C:\TMP, etc.

Programmer’s Note: You may not see these ﬁles if the contents of the “tmp” ﬁle are not visible. Use the Show all ﬁles option in the Windows Tools/Folder Options menu.

65 of 72

Page 66

9.0 Upgrading E-4 Microcontroller Code

The microcontroller code residing in the E-4 system hardware can be upgraded using the

1. Using the E-4 front panel STANDBY button, place the unit in standby mode (the STANDBY indicator should be amber).

2. Press the STANDBY button again to place the unit in operat- ing mode (the SYSTEM STATUS indicator should be green).

3. If not already done, connect your PC to the E-4 unit using a serial data cable.

4. Launch the Installer software. As the software activates the connection with the E-4 unit, a status dialog window appears. Once the connection is made, the E-4 front panel (block diagram) appears on your screen.

5. Click the (Flash Conﬁguration) button to send the conﬁguration to the E-4 hardware. This automatically updates the design ﬁle so that it is compatible with the current soft ware version. When you are asked to conﬁrm that you are going to overwrite the E-4 hardware memory, click

Installer™ software.

Yes.

6. Click the (Save File) button and save the design ﬁle to your PC. This ensures that all of your settings and events will be available later.

7. Press and hold the Ctrl and Alt keys on your PC keyboard and click the

Microcontroller Code dialog appears:

8. Locate the ﬁle BoseE4Uctlr-#.#.#.# in the installation directory, where ple,

C\Program Files\FreeSpace Installer 1.0\

9. When you are asked to conﬁrm that you are about to upload new ﬁrmware, click

(Flash Conﬁguration) button. The Upload

#.#.#.# is the version number. For exam-

Firmware\BoseE4Uctlr-1.0.0.62.bin.

Yes.

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9.0 Upgrading E-4 Microcontroller Code

The ﬁrmware upgrade runs automatically and will notify you when it is complete.

Once the upgrade is completed, select the Service Hardware mode and verify that the microcontroller version number is correct. For example:

------------------------------------------------Microcontroller: v1.0.0.64

DSP: v1.0.71.0 Peripheral: v1.0.0.10 Lower Ampliﬁer: v1.0.0.14 Upper Ampliﬁer: v1.0.0.14

-------------------------------------------------

If you do not see the correct microcontroller version number, or if any of the other ﬁrmware version numbers are less than the values shown in this example, please contact your local Bose Customer Support representa tive.

10. Open the design ﬁle you saved in Step 6. Click the (Flash Hardware Conﬁguration) button to restore your

hardware conﬁguration.

11. Perform an Auto Volume calibration for those zones in which

Auto Volume is used. Click the button to send your ﬁnal settings to the E-4 hardware.

12. Click the (Save File) button and save the design ﬁle to

your PC.

(Flash Conﬁguration)

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10.0 Technical Specifications

10.1 Power amplifier

Power output

Total shared power available for all channels: 400W Maximum power per channel: 400W

Output conﬁgurations

70.7V or 100V nominal

Frequency response

20 Hz to 20 kHz ±3 dB

Channel separation

>70 dB @ 1 kHz

THD

<1.0% at rated power, 0.1% at half rated power

Signal-to-noise ratio

>97 dB, A-weighted

Slew rate

20V/µs

10.2 Digital signal processing

Sample rate

44.1 kHz

A to D conversion

24-bit, 128x oversampling

D to A conversion

24-bit, 128x oversampling

10.3 Front panel indicators and control connections

Amp output signal indicators

Zone 1 – Zone 4: dual-color LED

Source input signal indicators

Source 1 – Source 4: dual-color LED

Other indicators

System Status: dual-color LED Direct Input: yellow LED Standby: yellow LED

PC input

USB connector (for future use)

10.4 Rear panel inputs, outputs, and controls

Line level inputs

Type: Unbalanced dual RCA connectors internally

summed to mono Sensitivity: –20 dBV to +20 dBV Impedance: 25K ohms Input Clip Level: +17 dBV

Mic level inputs

Type: Balanced Euroblock connectors Sensitivity: –60 dBV to 0 dBV Impedance: 3.3K ohms Input Clip Level: +17 dBV

Tested with AES 17 low-pass ﬁlter.

All speciﬁcations subject to change without notice.

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10.0 Technical Specifications

10.4 Rear panel inputs, outputs, and controls – cont.

Direct input

Type: Balanced Euroblock connectors Sensitivity: 0 dBV Impedance: 2.5K ohms Input Clip Level: +6 dBV

Sensing microphone inputs

Sensing Mic 1 - 4: Euroblock connector

Control connectors

Wall Plate Zone 1 - 4: RJ45 connector Contact Closure Input: Euroblock connector PC Input: RS-232 connector

Power ampliﬁer outputs (70V or 100V only)

Amp Out Zone 1 - 4: Inverted Euroblock connector

Audio outputs

Music on Hold/PBX Output: Euroblock connector Aux Out/Control: Euroblock connector

Output conﬁguration

70V or 100V: Switch

AC power consumption

60W or less at idle 200W with musical program 600W at maximum continuous rated power (1 kHz, sine wave input) 70V or 100V mode

AC power requirements (±10%)

120 VAC/50-60 Hz 220 VAC/50-60 Hz 240 VAC/50-60 Hz 100 VAC/50-60 Hz

Fusing/protection

120V: T6.25A, 250V rated 240V: T3.15A, L250V

Size (H x W x D)

5.25 in. (3U) x 17.25 in. x 15.5 in. (13.3 cm x 43.8 cm x 39.4 cm)

Weight

30 lb (13.6 kg)

Enclosure construction

Steel chassis designed for rack or shelf mounting

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BOSE 268134R00 Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual

1.2 E-4 system accessories

1.3 FreeSpace Installer ™ software

2.1 Introduction

2.2 Basic design steps

2.3 Auto Volume layout examples

3.1 Front panel

3.1.1 Controls

3.1.2 Indicators

3.2 Rear panel

3.2.1 System controls

3.2.2 Audio source inputs

3.2.3 Amplifier outputs

3.2.4 AC power

4.1 Introduction

4.2 Included accessories

4.3 Placement guidelines

4.4 Shelf mounting the E-4 unit

4.5 Rack mounting the E-4 unit

4.6 Installing accessories

4.6.1 Sensing microphones

4.6.2 User interfaces

4.7 System wiring

4.7.1 Auto volume microphone inputs

4.7.2 Serial data communications

4.7.3 User interface connections

4.7.4 Remote standby switch

4.7.5 LINE 1/LINE 2 source input

4.7.6 MIC/LINE 3 source input

4.7.7 MIC/PAGE/LINE 4 source input

4.7.8 DIRECT IN/CONTROL source input

4.7.9 Amplifier output channels

4.7.10 Output voltage setting (70/100V)

4.7.11 Auxiliary output

4.8 AC power connections

5.1 Installing the software

5.2 Connecting to the E-4 system

5.2.2 Viewing the sample design file

5.3 The Installer™ software user interface

5.4 Set Up Hardware mode

5.5 Set Up Schedule mode

5.5.1 Setting the clock

5.5.2 Adding events

5.5.3 Viewing and changing event settings

5.5.4 Removing events from the list

5.6 Service Hardware mode

6.1 Introduction

6.2 Connecting your PC to an E-4 system

6.3 System setup procedure

6.3.1 Output gain

6.3.2 Zone setup

6.3.3 Input gain

6.3.4 Source assign

6.3.5 Source EQ

6.3.6 Page set up

6.3.7 Zone EQ

6.3.8 Dynamic EQ

6.3.9 Auto Volume

7.1 Introduction

7.2 Standard user interface operation

7.3 Auto Volume interface operation

8.1 Introduction

8.2 E-4 hardware indicators

8.2.1 Normal operation

8.2.2 System fault

8.2.3 Amplifier fault

8.2.4 Input clipping

8.2.5 Direct input is active

8.2.6 No STANDBY and SYSTEM indicators

8.3 FreeSpace® E-4 system Error Log

8.3.1 Contents of the Error Log

8.3.2 Hardware configuration

8.3.3 Power-on self-test results

8.3.4 Amplifier alarms

8.3.5 Solving faults reported in the Error Log

8.4 Common problems

8.4.1 Communications port error