Bose SE-1 User manual

Service Manual

SE-1 Audio/Video Switcher

AUTO-SW

MRI-CD20

ZONE

OPTICAL DIGITAL AUDIO

SENSE

CENT

COAX DIGITAL AUDIO

ANALOG AUDIO LEFT

ANALOG AUDIO RIGHT

COMPOSITE VIDEO

S-VIDEO

SOURCE

12VDC

OUTPUT

VOLUME

CONTENTS

CAUTION: The Bose®SE-1 Audio/Video Switcher

contains no user-serviceable parts. To prevent warranty infractions,

refer servicing to warranty service stations or factory service.

WARRANTY INFORMATION

The Bose SE-1Audio/Video Switcher is covered by a 1-year transferable limited warranty.

PROPRIETARY INFORMATION

THISDOCUMENTCONTAINSPROPRIETARYINFORMATIONOF

BOSE CORPORATION WHICH IS BEING FURNISHED ONLY FOR

THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT

BYAN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF

THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR

USED FOR ANY OTHER PURPOSE.

Contents ............................................................................................................................................2

Warranty Information.........................................................................................................................2

Product Description .........................................................................................................................3

Specifications:...................................................................................................................................3

The Bose® SE-1 System Expander ...............................................................................................4

Connecting the SE-1 system expander...................................................................................... 5-8

Output connections..........................................................................................................................6

Connecting to the MRI or CD20 music center...............................................................................6

Adding a TV on/off sensor ...............................................................................................................8

Support for IR control of other rooms or zones............................................................................8

Control inputs/outputs .....................................................................................................................9

Part List Notes ..................................................................................................................................9

Electrical Part List, Main PCB ................................................................................................. 10-17

Troubleshooting ....................................................................................................................... 18-19

Service Manual Revision History .................................................................................................20

PRODUCT DESCRIPTION

The Bose®BUILT-INvisible®SE-1 system expander simplifies the wiring and hookup of the

BUILT-INvisible TA-1 amplifier and other home theater components such as DVD, digital satellite

television, etc. It creates a highly flexible, easy-to-install and easy-to-use home theater system.

Features:

• Five audio/video inputs. Four digital inputs (two with optical connections)

•Fully integrates with the BUILT-INvisibleTA-1theateramplifierandthe BUILT-INvisibleCD-20

and CD-50 music centers

• IR control allows one remote to operate all of the home theater equipment including the Bose

BUILT-INvisible music center

• Simple installation

• TV sensing automatically switches sources and turns on the amplifier when the TV is turned on

• Small, remote, IR sensor

Specifications:

Power Supply 12VDC, 400mA

Control Inputs/Outputs

IR Sensor: For use with included IR sensor assembly

AMP: RS-232C, for connecting to the TA-1 theater amplifier

Music Center: TTL-level, for connecting to the CD-20or CD-50 music centers

TV Sense: For use with logic level (0 - 5VDC) TV sensing devices (not included)

Audio/Video Inputs

5Audio (L/R) 25K input impedance

5 Video (NTSC composite) 75 input impedance

5 Video (Y/C S-video) 75 input impedance

4 S/PDIF (coaxial) 75 input impedance

2 Toslink (optical) S/PDIFAudio/video outputs

3Audio (L/R) 265 output impedance

2 Video (NTSC composite) 75 output impedance

2 Video (Y/C S-video) 75 output impedance

1 S/PDIF (coaxial) 75 output impedance

Indicators

Power

Command

Selected source (6)

Push-button Controls (for installer use)

Volume up and down

Source selection

Dimensions 1"H x 10"W x 7.25"D (2.5 cm x 25.5 cm x 18.5 cm)

Weight 3 lb (1.35 kg)

The SE-1 system expander is designed for use with the Bose TA-1 theater amplifier. It provides

switching for all the home theater sources – DVD, DBS, VCR, etc. – and provides control infor-

mation to the TA-1 amplifier.

Features

• Designed for remote, out-of-sight installation

• Fully integrated with the BUILT-INvisible® TA-1 amplifier and BUILT-INvisible music centers

• Small, remote IR sensor

• Five audio/video inputs. Four digital inputs (two with optical connections)

• Logic-level TV sense input can be used to automatically switch sources and turn on the

amplifier when the TV is turned on

• IR controlled

• Works with both the two-zone CD20 music center and the four-zone CD50 multi-room

interface (MRI).

Figure 1. Carton contents

The carton contains:

• SE-1 system expander

• 3.5 mm to mini-DIN music center serial cable

• Bose source cable

• IR sensor

• Digital patch cable

• Composite video patch cable

• S-Video patch cable

• Power pack

CAUTION: Use the SE-1 system expander only with the supplied power pack, which is UL listed.

Other required parts

In addition to the parts supplied with the system expander, installing the system requires use of

the appropriate Bose source plate and the Bose digital source plate. System operation requires

the use of a universal or “learning” IR remote control.

The Bose®SE-1 System Expander

CTL

OPTICAL DIGITAL

AUDI O

OUTPUTS INPUTS

SELECTEDSOURCE

SOURCE

SELECT

AMP

TV S

IR SENSE

EXT

NRMAL/LS

MRI/CD20

MUS

12VDC

POWER

OUTPUT

COAX DIGITAL

AUDIO

ANALOG AUDIO

LEFT

ANALOG AUDIO

RIGHT

COMPOSITE

VIDEO

S-VIDEO

VOLUM E

SE-1 system expander IR sensor

Bose source cable

Power pack

S-Video patch cable

Mini-DIN to 3.5 mm

music center serial data

Composite video

patch cable

Digital patch

cable

Figure 2. Overview of SE-1 system expander connections

In determining which jacks to use on the SE-1 system expander, use the following guidelines:

Input connections

• Connect the A/V sources – DVD, DSS, etc. – to the five sets of input jacks on the right side of

the SE-1 system expander connection panel.

• Components that use optical cable must connect to Input 1 or 2. If a component has both

optical and coaxial outputs, connect either of them.

• For digital components that do not require an optical digital jack, use the COAXIALDIGITAL

AUDIO jack.

• Be sure to connect the left and right analog channels of the component to the proper left or

right jacks.

Note: Even if using digital audio, we recommend that you also connect the L/R analog audio.

• For components that have S-Video, use the S-VIDEO jack.•For components that do not have

S-Video, use the COMPOSITE VIDEO jack.

Connecting the SE-1 system expander

ANTENNA

LOCATE

MUSIC

CENTER

BOSE CD

FM FM

OPTICAL DIGITAL

AUDIO

OUTPUTS INPUTS

SELECTED SOURCE

SOURCE

SELECT

IR SENSE

EXT

NRMAL/LS

MRI/CD20

OUTPUT

COAX DIGITAL

AUDI O

ANALOG AUDIO

LEFT

ANALOG AUDIO

RIGHT

COMPOSITE

VIDEO

S-VIDEO

VOLU ME

Bose

source plate

Bose

multi-room

interface

Bose SE-1

system expander

Digital

audio

Music center

serial cable

L/R audio + video

L/R audio

To video IN TV audio

OUT

L/R audio

OUT

IR sensor

S-Video

DVDSSD

Bose

source

cables

Digital

audio

Bose

digital

source plate

CTL

Output connections

Note: OUTPUT 1 and OUTPUT2 jacks are linked internally. They are individually buffered, but

always contain the same signal, both COMPOSITE VIDEO and S-VIDEO.

• Connect the COMPOSITE VIDEO and S-VIDEO outputs to the respective inputs on the TV.

Note: The SE-1 system expander does not convert composite input signals to S-Video. There-

fore, you must connect the composite and the S-Video outputs to the TV if you have composite

and S-Video sources. Or, use a composite video to S-Video converter.

Connecting to the MRI or CD20 music center

Using the music center serial cable:

1. Insert the mini-DIN connector into the jack marked MUSIC CENTER on the SE-1 system

expander.

2. Insert the 3.5 mm connector into the SERIAL DATA jack on the back of the CD20 music center

or MRI. This connection delivers the remote command signals for audio source control.

Connecting to the TA-1 amplifier

1. Using the Bose®source cable:

• Insert one connector into theAMP output jack on the SE-1 system expander.

• Insert the other connector into the Bose source plate.This cable carries the audio/video source

signals from the SE-1 system expander to the source plate. Use Bose system cable to

connect the back of the Bose source plate to the TA-1 amplifier.

2. Using the digital audio patch cable:

• Insert one connector into the COAX DIGITALAUDIO output jack on the SE-1 system expander.

• Insert the other end into RCA jack #1 on the Bose digital source plate. Use Cat-5 cable from the

back of the digital source plate to send the digital audio signal to the TA-1 amplifier.

Connecting the IR sensor

• Insert the connector end into the IR SENSE jack of the SE-1 system expander.

• Decide where to place the IR sensor on or near the TV. Remove the protective strip from its

adhesive surface and affix the sensor to a flat, dry surface. The sensor carries IR signals

issued by the remote control to the SE-1 system expander, which conveys them to the TA-1

amplifier and the CD20 music center or MRI.

Connecting the power supply

1. Insert the small connector end of the power pack cable into the 12VDC power jack on the

SE-1 system expander.

2. Plug the power pack into a nearby wall outlet.The LED on the lower right corner of the SE-1

system expander should light when the power pack is connected to power.

Connecting the SE-1 system expander (continued)

AUX mode

In this recommended mode of operation, for use only with the CD50, the SE-1 system expander

updates the Personal®music center (PMC) display of output levels, including volume, to stay in

sync with the TA-1 amplifier levels. So any system control adjustment, made at either the PMC

or the IR remote control, affects both the PMC and the amplifier.

When the system is not inAUX mode, eventually the PMC and TA-1 settings no longer match.

For example, using the PMC to select and control the CD player causes the volume and other

levels to automatically resume previous settings that are likely to conflict with the TA-1 ampli-fier

settings. Using theAUX mode prevents this out-of-sync situation.

There is one limitation to this mode, however. It does not allow the AUX source on the multi-room

interface (MRI) to serve as audio source for the home theater room. Instead, you must use the

AUX source on the PMC for home theater.

Whenever theAUX source is selected, both the SE-1 system expander and the TA-1 amplifier

recognize it as a TA-1 video input, while the audio (routed through the MRI to theTA-1 amplifier)

is ignored. So when you pressAUX on the PMC orAUX on the IR remote, the TA-1 amplifier will

switch, as needed, to its VIDEOAUDIO input (and the last digital input selected).

In fact, with any source change (setting the SE-1 to video input 2, for example), the SE-1 system

expander automatically changes the CD50 source toAUX, even if the CD50 had been off.

Setting the SE-1 to AUX mode

To set the SE-1 system expander toAUX mode, move theAUX DIP switch to the up position

(towards the volume button).

Note: Also set the TA-1 toAUX mode. To do that, move the EXT DIP switch to the down posi-

tion (towards the wall).

Operation notes:

• The first time you use the system inAUX mode, you must adjust the PMC’s volume level to put

it in sync with the TA-1 volume level. To do this, use the PMC to:

1.Select any source.

2.Lower its volume to 0.

3.Raise the volume to the preferred level.This will synchronize the PMC volume to the TA-1

volume.

• Each time the SE-1 system expander source changes (Video 1 – 5) it causes the CD50 to

select theAUX source. While the audio plugged into theAUX input on the MRI will not play (effec-

tively eliminating an analog input to the home theater room), you have three other inputs. Instead

of receiving audio from the MRI, the TA-1 amplifier automatically selects VIDEOAUDIO and the

lastdigital input.

• TheAUX input is available for use in other rooms in the home. TheAUX source becomes the

Home Theater mode only in the home theater room.

• When you switch from any audio source (CD, FM, Video 1, etc.) toAUX on the PMC, the TA-1

amplifier switches from MUSICAUDIO input to VIDEOAUDIO input. Switching back to an audio

source switches the input back.

Connecting the SE-1 system expander (continued)

Adding a TV on/off sensor

The SE-1 system expander supports a logic-level TV on/off sensing device (not included). When

the logic input is high (4 – 5VDC), the SE-1 system expander sends an ON command to the

TA-1 theater amplifier. When the logic input is low (0 – .5VDC), the SE-1 system expander sends

an OFF command to the TA-1 theater amplifier.

To connect a TV sensing device, wire the ground from the sensor to the sleeve of a 3.5 mm

stereo plug (not included). Wire the logic-level input signal to the ring of the 3.5 mm plug.

Note: The tip of the TV sensor jack contains +5VDC for future use.

In general, you should not use the TV sensing functionality with macros that turn the TV on and

off. If a TV has discrete ON/OFF commands you should use those commands in a macro rather

than a TV sensor.

DIP switch settings

The SE-1 system expander contains a 3-position DIP switch. The first position is not used at this

time, and must be left in the OFF position. Switch 3 should be set according to which music

center is being used, the MRI or CD20 music center.

Switch Label Description

1 MC Must be in the OFF position (closest to edge)

2 AUX ON forAUX mode; OFF for non-AUX mode

3 MRI or CD20 ON for CD20; OFF for MRI

Support for IR control of other rooms or zones

The SE-1 system expander supports IR codes for control of Zone 2 for the CD20 and rooms

B, C, and D for the CD50. The Pronto CCF file named BoseZoneCodes.ccf contains all the

IR codes for the supported functions in these additional rooms or zones. Refer to this file for

information on those functions.

Checking for proper operation

1. Make sure the power LED, located on the lower right of the SE-1 system expander

con-nection panel, lights up. If not, check the connections at both ends of the power pack.

2. Use the SOURCE SELECT button to the left of the OUTPUT jacks to make sure all sources

are connected and operational.

• The LEDs (1 – 5) above the INPUT jacks will light to indicate the selected input source.

3. You may also use the VOLUME up and down buttons to check for audio signals from the

selected input source.

4. Pressing the local push buttons or sending IR commands to the SE-1 system expander

causes it to send commands to the music center or the TA-1 amplifier, causing the

command LED to blink. If the LED blinks for local push buttons but not for IR commands,

check the IR sensor connection and make sure the IR codes you are using are correct.

PART LIST NOTES

1. This part is not normally available from Customer Service.Approval from the Field Service

Manager is required before ordering.

2. The individual parts located on the PCBs are listed in the Electrical Part List.

3. This part is critical for safety purposes. Failure to use a substitute replacement with the

same safety characteristics as the recommended replacement part might create shock, fire

and/or other hazards.

4. This part is referenced for informational purposes only. It is not stocked as a repair part.

Refer to the next higher assembly for a replacement part.

IR Sensor: For use with included IR sensor assembly

AMP: Control (RS-232) and line-level audio (output) for connecting to the TA-1 theater amplifier

Pin Description

1 Spkr data (future use)

2 Turn-on signal (future use)

3 Fixed Left (output of main L/R switcher)

4 Fixed Right (output of main L/R switcher)

5 Ground

6 TA-1 Rx

7 TA-1Tx

8 Ground

Shell Ground

Music Center: Control (TTL-level) and line-level audio (input), for connecting to the CD20 or

CD50 music center

Pin Description

1 Music Center Tx

2 Music Center Rx

3 Fixed Left (input 6 to main L/R switcher)

4 Fixed Right (input 6 to main L/R switcher)

5 Ground

6 Turn-on signal

7 Spkr data

8 Antenna

Shell Ground

TV Sense: For use with logic-level (0 – 5VDC) TV sensing device (not included)

Control inputs/outputs

876

543

876

543

ELECTRICAL PART LIST

MainPCB

Resistors

Reference

Designator

Description Vendor Part

Number

Note

RP1 RES NET, 270 X 9 OHMS, SIP 451-012 4

RP2 RES NET, 10K X 5 OHMS, SIP 451-015 4

R1 51K, CF, 1/4W, 5% 411-618 4

R2 51K, CF, 1/4W, 5% 411-618 4

R3 51K, CF, 1/4W, 5% 411-618 4

R4 51K, CF, 1/4W, 5% 411-618 4

R5 51K, CF, 1/4W, 5% 411-618 4

R6 51K, CF, 1/4W, 5% 411-618 4

R7 51K, CF, 1/4W, 5% 411-618 4

R8 51K, CF, 1/4W, 5% 411-618 4

R9 51K, CF, 1/4W, 5% 411-618 4

R10 51K, CF, 1/4W, 5% 411-618 4

R11 1M, CF, 1/4W, 5% 411-801 4

R12 1M, CF, 1/4W, 5% 411-801 4

R13 1M, CF, 1/4W, 5% 411-801 4

R14 1M, CF, 1/4W, 5% 411-801 4

R15 1M, CF, 1/4W, 5% 411-801 4

R16 1M, CF, 1/4W, 5% 411-801 4

R17 1M, CF, 1/4W, 5% 411-801 4

R18 1M, CF, 1/4W, 5% 411-801 4

R20 1M, CF, 1/4W, 5% 411-801 4

R21 1M, CF, 1/4W, 5% 411-801 4

R22 51K, CF, 1/4W, 5% 411-618 4

R23 51K, CF, 1/4W, 5% 411-618 4

R26 549 OHMS, MF, 1/8W, 1% 441-5490 4

R27 120 OHMS, CF, 1/4W, 5% 411-403 4

R28 220 OHMS, CF, 1/4W, 5% 411-409 4

R29 220 OHMS, CF, 1/4W, 5% 411-409 4

R30 220 OHMS, CF, 1/4W, 5% 411-409 4

R31 220 OHMS, CF, 1/4W, 5% 411-409 4

R32 270 OHMS, CF, 1/4W, 5% 411-411 4

R33 270 OHMS, CF, 1/4W, 5% 411-411 4

R34 270 OHMS, CF, 1/4W, 5% 411-411 4

R35 270 OHMS, CF, 1/4W, 5% 411-411 4

R36 270 OHMS, CF, 1/4W, 5% 411-411 4

R37 270 OHMS, CF, 1/4W, 5% 411-411 4

R38 5.1K, CF, 1/4W, 5% 411-518 4

R39 5.1K, CF, 1/4W, 5% 411-518 4

R40 5.1K, CF, 1/4W, 5% 411-518 4

R42 1.2K, CF, 1/4W, 5% 411-503 4

R43 47K, CF, 1/4W, 5% 411-617 4

R44 10K, CF, 1/4W, 5% 411-601 4

R45 10K, CF, 1/4W, 5% 411-601 4

R46 10K, CF, 1/4W, 5% 411-601 4

R47 10K, CF, 1/4W, 5% 411-601 4

R49 10K, CF, 1/4W, 5% 411-601 4

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