Boston MCS 95 Service Manual

MCS 95

5.1 Surround Speaker System

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MCS 95 Sistema Multicanal Boston

Francais

MCS 95 Haut-parleur multivoix Boston

Speciﬁcations Satellites Center Channel Subwoofer

Frequency Response: 120Hz – 20kHz 120Hz – 20kHz 50 - 150Hz

Recommended Amplier Power Range: 10 – 100 watts 10 – 100 watts —

Sensitivity: 88dB [2.8v at 1m] 88dB [2.8v at 1m] —

Nominal Impedance: 8 ohms 8 ohms —

Crossover Frequency: 3,000Hz 3,000Hz

Amplier Output: — — 100 watts RMS, (250 watts Peak);

BassTrac® circuitry eliminates distortion

Woofer: 3” with Phase Plugs 3” with Phase Plugs 8” (203mm) & MagnaGuard® & MagnaGuard

Tweeter:

Dimensions (H x W x D) 73⁄8 x 43⁄8 x 411⁄16” 511⁄16 x 125⁄8 x 33⁄4” 121⁄4 x 11 3⁄16 x 15 9⁄16”

(189 x 113 x 93mm) (145 x 321 x 95mm) (310 x 284 x 395mm)

Weight 2.5 lbs 4.6 lbs 20 lbs (1.14kg) (2.1kg) (9kg)

1

⁄2” (13mm)

1

⁄2” (13mm) —

60Hz - 180Hz 24dB/octave lowpass

MCS 95 Introduction

Thank you for purchasing a Boston Acoustics Multi-Channel Speaker System. These speakers incorporate high-quality that produce the famous Boston sound. The system is ideally suited for use as a 5.1 channel solution in a high-quality home theater or music system. The system is complete with everything you need for the typical speaker system including speaker wire, satellite speakers, a center channel speaker, and a subwoofer. Please check out Bostonacoustics.com/placement for information on placing your speakers.

components

The MCS 95 speaker system delivers exceptionally articulate on-screen dialog, music, eﬀects, and room ﬁlling bass from a small, sleek package. Compact driver placement and quality, system speciﬁc crossovers assure a wide uniform dispersion for complete coverage of a listening room. All speakers also feature MagnaGuard® magnetic shielding which ensures the speaker’s magnetic ﬁeld does not interfere with the television’s picture.

Unpacking the System

Carefully unpack the system. If there is any sign of damage from transit, report it immediately to your dealer and/or delivery service. Keep the shipping carton and packing materials for future use. Open the package and verify the following contents:

(4) Satellite speakers (1) Center Channel speaker (1) Subwoofer (2) 40’ (12m) speaker wires (3) 20’ (6m) speaker wires (1) 15’ (4.6m) subwoofer cable (8) Rubber bumpers (used for wall mounting)

(4) Satellite speakers

with 1 removable foot

Subwoofer

(1) Center Channel speaker

with 2 removable feet

BA Part Number Part Description

110-002477 WOOFER 8 IN SNDWRESUB 110-002548 F/A MCS95 SAT BLK 110-002549 F/A MCS95 CTR BLK 120-002942 SPKR WIRE MCS 20FT SET OF 3 120-003063 SPKR WIRE MCS 40FT SET OF 2 120-003417 AMP ASSY MCS95 120V 131-000791 SUBWOOFER AUDIO CABLE 15FT 132-000162 FUSE 1.6A 250V 20MM VDE 137-001386 RUBBER BUMPER MCS SET OF 4 137-001634 PWR CORD 120V 141-002810 RSC-1-SYS MCS95 141-002813 STYROFOAM TOP 141-002814 STYROFOAM MIDDLE 141-002815 STYROFOAM BOTTOM 142-003845 OWNER'S MANUAL SYS MCS95 142-003850 QUICKSTART GUIDE MCS95

MCS95 Service Parts List

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JK01

RJ1081

C01

220p

R01 47K

R04

18K2

R05

37K4

U01B

2060M

C05

MSC333J

C04

MSC333J

C02

MSC474J

C03

MSC474J

R02

3K65

R03

16K5

U01A

2060M

R06 22K

R07A 50KB

R07B 50KB R08

22K

C07

MSC153J

C06

MSC104J

U01D

2060M IN Out

U_DIPFILTR DIPFILTR.SchDoc

R15 0R0

R16

10KA

IN

LSIN

GND

-V

PVCD

Out

+V

NVCD

MD01 Limiter

R17 39K

C11

10u/16V

C12

10u/16V

+14V -14V

U01C

2060M

R18 10K

R19 10K

C13

CD103

C15

22u/16V

R21 22K

R20 10K

PVCD NVCD

Out

+14V

C16

CD104

C18

CD104

C17

100u/16V

C19

100u/16V

-14V

R22 47R

R23 47R

C20

CD104

C21

CD104

+15V

-15V

P01

Out

-15V

+15V

STBY PVCD

NVCD

R24 47K

In Out

U_Auto_ON-OFF Auto_ON-OFF.SchDoc

STBY

R39

1K5/1206

G

R

D04

Frequency = 185Hz Q = 0.47

Frequency = 55 ~ 185Hz Q = 1.26

C14

CD103

SW01

C29

10u/16V

R40 20K

V1.1 Changes :

(1) Add C29(10uF/16V). (2) Add R40(20Kohm/0805)

V1.2 Changes :

(1) Change C26 to 100u/16V(220uF/16V). (2) Change R36 to 1Mohm(2M2onm)

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In

C22

1u/50V

U03A

4558M

C23 47p

R25 47K

R26

150K

C24

220p

D01

ZD3V3

C25

10u/16V

R27 150

D02

1N4148

R28 2K2

R29 22K

Q01 2N3904

C26

100u/16V

R31 10K

R30 4K7

Q02 2N3906

R32

100

D03

1N4148

R33 22K

U03B

4558M

R34

1K

R35

1M

R36

1M

Out

+14V5

+15V

R37 47R

+14V5

C27

100u/16V

C28

100u/16V

-15V

R38 47R

-14V5

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INSGND PGND

+Vb

IN+ Out

SD

+Vcc-Vcc

MD01

PWA_AB_06

+Vcc

-Vcc

DOS Delay

GND

TFS

+Vcc

CTRL

MD02 RYCTRL_02

+Vcc

C14

100u/16V

K01A

JQC-3FF

R56

150/1206

K01B

P05

R53 47K

C15

100u/16V

C16

100u/16V

R51

100K

C13

CD105

D15

1N4148

D14 1N4148

R52

10M

R50 10K

C12

100u/16V

C11

10u/50V

R48

1K2

C10

220p

R47

10K

IN

R46 10K

R45 47K

IN

-15V

+15V

STBY

D13

1N4148

STBY

+Vcc

-Vcc

P03

C19

1u/50V

D17

1N4148

R54 100

R55 10K

P04

+15V -15V

C21

100u/16V

C22

100u/16V

P06

C23

100u/50V

C24

100u/50V

L01

22uH

L02

22uH

+Vcc

-Vcc

L03

TBD

C18 OPT

R49 910

D18 1N4148

FX01

FX02

C17 CD104

D19

1N4148

R57 22R

C20

1u/50V

U02A

4558M

U02B

4558M

U02C 4558M

+15V

-15V

+Vbb

-Vbb

U_PN15V PN15V.SchDoc

D16 M2

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Q18

C2235

R58

1K2

Q19

2N3904

R61

1K

Q20

2N3906

R60 15R

R62 39K

R66 24K

C27

470p

R67 4K99

R68 22K

Q22

A965

Q21

2N3906

R69 20K

C28 470p

R65

39K

R64 1K

R59

1K2

R63 15R

C25

CD104

C26

CD104

U03

TL431

+Vbb

-Vbb

+15V

-15V

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Q13 2N5401

R34 22K

+Vcc

R35 18K

D08

1N4148

Out

R36 22K

Q14 2N3904

D09 ZD5V6

R37 68K

R38 10R

Q15

2N3906

R39 10K

D10

1N4148

D11

1N4148

R40 22K

R41 4K7

Q16 2N3904

Delay

Q17

2N3906

R43 10K

D12

ZD6V8

R44 4K7

TFS

DOS

R42 10K

P02

TFS

+Vcc

Out

DOS

Delay

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R03 6K8

Q03 2N5401

R04 33K

Q04

2N5401

R05 10K

R06 6K8

Q01 2N5551

Q02

2N5551

R01

330K

C01

CD102

IN+

IN-

R07 22R

R08 22R

R11 270

R10 5K6/1206

Q08 2N5551

R12 500

SD

D01

NI

R20

1K

R19 2K2

D02

NI

R22

1K

R21 2K2

R23

0R22/2W

R24

0R22/2W

R27 270

R25 560

R28

6K8/1206

D03 1N4148

R26 13K

D04

1N4148

R29 10K

Out

R30 22R/1206

C04

CD473

R18 33K

C02 100p

C03

100p

R13 30K

D05

ZD12V

R14 22K

R15 27K

R09 12K

Q07

2N3906

R16 2K2

Q09 2N5551

R02 10K

D06

1N4148

C06

CD104

C05

CD104

+Vcc

-Vcc

Q12

2N5551

D07

ZD12V

C07

100u/16V

R31 10K

R32 470

+Vb

P01

IN+ IN-

SD

-Vcc

+Vcc

Out

+Vb

R33 15K

C08

NI

Q10/11 IRF540x2

C09

CD104

Q06 A1015

Q05

2N5401

SD_OT

U01

TL431

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A3

Date:2010/1/19Sheet of File:D:\My File\..\SWXS-Soundware-EV4.SchDocDrawn By:

C4 0.33/ 250V / X2

ZNR1 TVR10471

TH1

10SP008

4

3 1

2

LF1

10mH

C5 NI

1

3

2

CN1

CON3.96-3P2C

F1

JUMP

V+

1

AC

2

AC

3

V-

4

BR1 GBU406

+

C2

220uF/200V

+

C6

220uF/200V

C1NIC3

NI

PGND

R1 100K/1206

R3 100K/1206

R2

510K/1206

R4

510K/1206

R5 100K/1206

R6 100K/1206

3

1

5610

7

8

12

11

T1

ERL-28V

R7

300K/1W

D1

1N4007

G

DS

Q5

STP11NK40ZFP

12

C18

0.1uF/250V

R18

22/1206

R22

22/1206

+

C8 470uF/35V

+

C16 470uF/35V

C7

NI

R8 NI

C12NIR12

NI

C9

NI

R11 NI

SGND

R10

NI

C10 NI

R15

NI

C11 NI

+VH1

-VH1

2

1

3

D2

SF1604GD

2

1

3

D5

SF1604GD

C17

NI

R16 NI

G

DS

Q1

STP11NK40ZFP

D3

1N4148

R9

10/1206

D10

ES1D

D7

ES1D

+

C26 100uF/25V

+

C21 100uF/25V

C19

104/0805

C25

104/0805

PGND

12

C27

0.1uF/250V

SGND1

1 2 3

CN2

CON3.96-3

1 2 3 4

CN3

CON2.5-4

HO

VS

LO

+V1.

-V1.

PVCC

1 2 3 4 5 6 7 8

CN4

CON2.0-8

1 2 3 4 5 6 7 8

CN5

CON2.0-8

LOLO1 HOHO1

VSVS1

PGND

PVCC1PVCC

SD1SD

1 2

J2

CY1

102Y1

PGND SGND

12

J3

1 2

J4

1 2

J1

D6

1N4148/1206

D9

1N4148/1206

R23 10K/0805

VCC

1

RT

2

CT

3

COM4LO

5

VS

6

HO

7

VB

8

U1

IR21531S

R21

15K/0805/1%

C28

102/0805

C24

104/0805

D8

SF16

+

C23 22uF/50V

C22

104/0805

GND-P

C14

104/0805

1

32

Q2 2N3904

+

C13 47uF/35V

R13 10K/1206

1 2

ZD2 15V/1206

D4

1N4148

C15

102/0805

1

32

Q4 NI

C20NIR19

NI

R17

NI

23

1

Q3 NI

R14 NI

FG(SGND)

Input VoltageJ1

120VAC

230VAC

JUMPER

NI

Table 1 :

See table 1

CY4

NI

12

CY2 NI

12

CY3 NI

12

J5

4

3 1

2

LF2

10mH

C29

0.22/250V/ X2

R20 10K/0805

1 2

J6

AuxG

1 2

J7 NI

GND-P

LO1

HO1 VS1

PVCC1

SD1

SGND1

12

J8 NI

SGND

1 2

ZD3 18V/0.5W

AuxG

C30 101/1KV

Heatsink

EV4

SWXS-Soundware

1

ZR11ZR2

1

ZR31ZR4

SAM

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