Denon MCS-95 Service Manual

MCS 95

MCS 95 Service Guide

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

60Hz - 180Hz 24dB/octave lowpass

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:

1

⁄2” (13mm)

1

⁄2” (13mm) —

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)

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

MCS95 Service Parts List

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

FOR REFERENCE ONLY - Please see the service parts list for all BA part numbers
NOTE: THE 120V MCS95 POWERED SUBWOOFER AMP USES Fuse 1.6A 250V 20mm VDE, BA P/N 132-000162

WOOFER 8-inch BA p/n 110-002477
(same one used on SWXS 5.1 sub)

MCS95 AMP ASSY 120V BA p/n 120-003417

FOR REFERENCE ONLY - Please see the service parts list for all BA part numbers
Detachable AC Power Cord not shown

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1

AA

R24
47K

2

U_Auto_ON-OFF
Auto_ON-OFF.SchDoc

In Out

Frequency = 185Hz
Q = 0.47

3

Frequency = 55 ~ 185Hz
Q = 1.26

R39

1K5/1206

D04

4

STBY

R

G

GND

-V
Out

PVCD

NVCD

U01B

2060M

MD01
Limiter

R02

C02

MSC474J

C12

10u/16V

3K65

C03

MSC474J

R03

16K5

+14V -14V

+V

IN

LSIN

JK01

RJ1081

C01

R16

R17
39K

R01

47K

220p

BB

C11

10u/16V

10KA

CC

MSC333J

10u/16V

PVCD
NVCD

C29

R04

18K2

R40

20K

C04

R05

37K4

MSC333J

R18
10K

R19
10K

C14

CD103

SW01

C05

2060M

R20
10K

C13

CD103

2060M

U01C

U01A

R06
22K

C15

22u/16V

R21
22K

C06

MSC104J

R07A
50KB

Out

R07B
50KB R08

MSC153J

+14V

-14V

22K

C07

C16

CD104

C18

CD104

U01D

2060M IN Out

R15
0R0

Out

-15V

+15V

STBY
PVCD

NVCD

C17

100u/16V

C19

100u/16V

U_DIPFILTR
DIPFILTR.SchDoc

R22
47R

C20

CD104

C21

CD104

R23
47R

+15V

-15V

P01

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)

DD

1

2

3

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1

AA

2

3

4

C25

R27
150

10u/16V

R25

47K

C22

BB

CC

In

1u/50V

+14V5

-14V5

C23
47p

4558M

U03A

D01

ZD3V3

R26

150K

C24

220p

D02

1N4148

R28
2K2

R29
22K

R30

4K7

R31

10K

Q01
2N3904

C26

100u/16V

R32

100

R33
22K

Q02
2N3906

D03

1N4148

100u/16V

100u/16V

C27

C28

R34

1K

R36

1M

R35

1M

4558M

U03B

R37
47R

R38
47R

+14V5

Out

+15V

-15V

DD

1

2

3

Title

Pre Amplifier\Main\Auto_ON-OFF

NumberRevisionSize

A4

Date:2010/1/19Sheet of
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BN20080011.2

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1

AA

2

3

4

R49

910

L01

22uH

L02

22uH

R50

10K

P06

+Vb
IN+ Out
IN-

PWA_AB_06

SGND PGND

SD

D13

1N4148

R52

10M

C13

CD105

4558M

U02B

MD01

+Vcc

-Vcc

+Vcc-Vcc

C20

1u/50V

100K

D14

1N4148

+Vcc

C23

100u/50V

C24

100u/50V

-Vcc

BB

R45

47K

R46
10K

IN

-15V

+15V

STBY

+Vcc

-Vcc

IN

P03

CC

R47

10K

C10

220p

4558M

U02A

+15V

-15V

R48

1K2

STBY

U02C
4558M

10u/50V

C12

100u/16V

C11

+15V -15V

C21

100u/16V

D19

1N4148

100u/16V

R51

100u/16V

D15

1N4148

C15

C16

R53

47K

C22

100u/16V

D18

1N4148

100u/16V

L03

TBD

R57

22R

C14

C19

1u/50V

K01B

U_PN15V
PN15V.SchDoc

DOS
Delay

FX01

+Vcc

MD02
RYCTRL_02

+Vcc

GND

TFS

CTRL

FX02

+Vbb

-Vbb

D17

1N4148

R54

100

R56

150/1206

K01A

JQC-3FF

C18
OPT

R55

10K

D16
M2

P04

P05

C17
CD104

DD

1

2

3

Title

XS_mother\Main

NumberRevisionSize

A4

Date:2010/1/19Sheet of
File:D:\My File\..\Main.SchDocDrawn By:

BN20090010.0

12

4

Mike

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1

AA

+Vbb

BB

2

Q18

R58

1K2

C25

CD104

C26

CD104

U03

TL431

Q20

2N3906

C2235

R61

1K

Q19

2N3904

R67
4K99

Q21

2N3906

R65

39K

R60
15R

R62
39K

C27

470p

R66
24K

R68
22K

R69
20K

C28
470p

3

+15V

4

CC

-Vbb

DD

1

R59
1K2

2

Q22

A965

R64
1K

R63
15R

-15V

Title

XS_mother\Main\PN15V

NumberRevisionSize

A4

Date:2010/1/19Sheet of
File:D:\My File\..\PN15V.SchDocDrawn By:

3

BN20090010.0

22

Mike

4

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1

AA

2

3

4

R38

R39
10K

D11

1N4148

10R

Q16
2N3904

R40
22K

R43
10K

Q17

2N3906

BB

DOS

TFS

CC

D12

ZD6V8

R42
10K

D10

1N4148

R41
4K7

R44
4K7

Q15

2N3906

R37
68K

Q14
2N3904

R36
22K

R35
18K

D09
ZD5V6

R34
22K

D08

1N4148

TFS

DOS

Delay

Out

+Vcc

Q13
2N5401

Delay

+Vcc

Out

P02

DD

1

2

3

Title

RYCTRL_02\Main

NumberRevisionSize

A4

Date:2010/1/19Sheet of
File:D:\My File\..\Main.SchDocDrawn By:

BN20080040.1

11

4

Mike

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1

P01

AA

BB

CC

IN-

IN+

SD_OT

SD

C01

CD102

R14
22K

R02
10K

R05

10K

R01

330K

IN+
IN-

SD

-Vcc

+Vcc

Out

+Vb

R03
6K8

Q01
2N5551

R07
22R

R09

12K

Q08
2N5551

R06
6K8

Q02

2N5551

R08
22R

D05

ZD12V

C09

CD104

R10
5K6/1206

C02

100p

R21

2K2

2

R11
270

Q07

2N3906

Q03
2N5401

R16

2K2

R12
500

Q04

2N5401

R22

1K

R19

2K2

Q06
A1015

R04

33K

R20

1K

C03

100p

D01

D02

3

Q12

2N5551

R18
33K

R29
10K

Q05

2N5401

SD_OT

Q10/11
IRF540x2

NI

NI

C06

CD104

0R22/2W

0R22/2W

6K8/1206

R13
30K

R24

R27
270

R23

R28

U01

TL431

R15
27K

R25

560

D04

1N4148

D06

1N4148

C07

100u/16V

R26
13K

D03

1N4148

CD473

C04

D07

ZD12V

Q09
2N5551

C05

CD104

R33
15K

C08

NI

R30
22R/1206

R31
10K

R32

470

4

+Vb

+Vcc

Out

-Vcc

DD

1

2

3

Title

PWA_AB_06\Main

NumberRevisionSize

A4

Date:2010/1/19Sheet of
File:D:\My File\..\Main.SchDocDrawn By:

BN20090020.0

11

4

Mike

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1

2

3

4

5

6

7

8

BR1
GBU406

AC

1

V+

AC

J1

1 2

See table 1

12

C18

0.1uF/250V

12

C27

0.1uF/250V

TH1

10SP008

+

C2

220uF/200V

+

C6

220uF/200V

PGND

AuxG

PGND SGND

5

R1
100K/1206

R3
100K/1206

R5
100K/1206

R6
100K/1206

C30
101/1KV

Heatsink

T1

5610

3

1

ERL-28V

CY1

102Y1

C1NIC3

NI

C7

R8
NI

NI

3

2

R10
NI

C10
NI

8

C11

R12

NI

R15
NI

7

12

11

SF1604GD

D7

ES1D

C19

104/0805

C25

104/0805

D10

ES1D

2

D5

6

C9

NI

NI

C17

NI

1 2

C12

J4

1

NI

C21

+

100uF/25V

C26

+

100uF/25V

D2

SF1604GD

R11
NI

3

1

R16
NI

J2

1 2

-V1.

SGND1

+V1.

Title

A3

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

+VH1

+

C8
470uF/35V

SGND

+

C16
470uF/35V

J3

-VH1

12

CN3

1
2
3
4

CON2.5-4

CN2

1
2
3

CON3.96-3

SGND1

J8
NI

12

SGND

SWXS-Soundware

NumberRevisionSize

7

EV4

SAM

8

F1

JUMP

R2

Q2
2N3904

1

1 2

VB
HO

VS

ZD2
15V/1206

104/0805

8

7
6

5

510K/1206

510K/1206

32

R13
10K/1206

C22

CON2.0-8

R4

CN5

104/0805

1
2
3
4
5
6
7
8

AA

Table 1 :

Input VoltageJ1

120VAC

230VAC

BB

23

R14

Q3

NI

NI

1

32

Q4
NI

GND-P

CC

DD

1

1

C20NIR19

NI

GND-P

PGND

R17

NI

+

C23
22uF/50V

J6

1 2

C24

104/0805

15K/0805/1%

CN1

1
2
3

CON3.96-3P2C

JUMPER

NI

D4

1N4148

C15

102/0805

GND-P

D8

SF16

U1

1

R21

AuxG

VCC

2

RT

3

CT

COM4LO

C28

IR21531S

102/0805

CN4

1
2
3

2

4
5
6
7
8

CON2.0-8

VSVS1

LOLO1
HOHO1

C4 0.33 /250V/ X2

PVCC1

C14

LF2

10mH

2

4

3 1

1

ZR11ZR2

+

C13
47uF/35V

SD1

HO1
VS1

LO1

SD1SD

PVCC1PVCC

GND-P

3

LF1

10mH

2

C29

LO

4

3 1

1

0.22/250V/ X2

ZR31ZR4

R7

300K/1W

R9

10/1206

PVCC

ZD3
18V/0.5W

1 2

D6

1N4148/1206

R18

HO

22/1206

VS

R22

J5

22/1206

12

D9

1N4148/1206

C5
NI

J7
NI

AuxG

CY4

NI

1 2

FG(SGND)

4

12

CY2
NI

12

CY3
NI

D1

1N4007

D3

1N4148

STP11NK40ZFP

STP11NK40ZFP

Q1

G

R20
10K/0805

Q5

G

R23
10K/0805

ZNR1
TVR10471

4

DS

DS

PGND

2

V-

3

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