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MCD301

MCD301 SACD / CD PLAYER

SERIAL NO. YM1001 And Above

CONTENTS Performance Specifications...........................................2 Notes............................................................................3 Safety Information.......................................................3 Rear Panel....................................................................5 Section Location...........................................................5 Block Diagram.............................................................6 Interconnection Diagram.........................................7 - 8 Main Schematic and PCB..................................... 9 - 16

Display Schematic and PCB................................17 - 20 Control Schematic and PCB.................................21 - 22 Power Schematic and PCB...................................23 - 24 Primary Schematic and PCB................................27 - 28 Headphone Schematic and PCB..........................29 - 30 Parts List..............................................................31 - 36 Repacking Instructions................................................37

SERVICE MANUAL


PERFORMANCE SPECIFICATIONS Audio Specifications

Transport Laser Type: Twin Beam Laser Beam Wavelength: 650nm (SACD)/790nm (CD) Laser Power: CLASS IIa/CLASS I

Fixed Output level 2.0Vrms Unbalanced 4.0Vrms Balanced Variable Output level 0 - 6.0Vrms Unbalanced 0- 12.0Vrms Balanced

Power Requirements 100 Volts, 50/60Hz at 35 watts 110 Volts, 50/60Hz at 35 watts 120 Volts, 50/60Hz at 35 watts 220 Volts, 50/60Hz at 35 watts 230 Volts, 50/60Hz at 35 watts 240 Volts, 50/60Hz at 35 watts

Output Impedance 600 ohms Unbalanced and Balanced Frequency Response 4Hz to 40,000Hz, +0.5, -3dB (SACD) 4Hz to 20,000Hz, Âą0.5dB (CD)

Standby: Less than 1 watt

Note: Refer to the rear panel of the MCD301 for the correct voltage.

Signal to Noise Ratio Better than 110dB (A-weighted)

Overall Dimensions Width is 17-1/2 inches (44.45cm) Height is 6 inches (15.24cm) Depth is 16-1/2 inches (41.91cm)

Dynamic Range Better than 100dB

Note: When the Disc Tray is opened, the panel clearance required in front of mounting panel is 6-3/4 inches (17.2cm).

Harmonic Distortion 0.002% @ 1000Hz (SACD) 0.003% @ 1000Hz (CD)

Weight 28.2 pounds (12.8Kg) net, 44.6 pounds (20.2Kg) in shipping carton

Channel Separation Better than 98dB (1,000Hz)

Shipping Carton Dimensions Width is 26-1/2 inches (67.3cm) Depth is 24-1/4 inches (62.2cm) Height is 11-3/4 inches (29.9cm)

General Specifications Digital Output Optical: - 15dbm to -21dbm (PCM) Coaxial: 0.5V p-p/75 ohm (PCM) Sampling Frequencies: 44.1kHz (PCM)

2


MCD301

NOTES 1. The heavy notes on the schematic denote the primary

signal path.

2. Unless otherwise noted, all voltages indicated on the schematics are measured under the following conditions: a. AC input at 120 volts, 50/60Hz. b. All voltages are +/-10% with respect to ground. A high impedance (10 megaohm) voltmeter must be used. 3. Unless otherwise specified: a. Resistor values are in ohms. b. Capacitor values are microfarads (uF). c. Inductor values are in microhenries (uH).

4. On PC board drawings, Square pad indicates: a. Polarized Capacitors - Positive b. Diodes - Cathode c. Others - Pin 1 5. WARNING Parts marked with the symbol have critical characteristics. Use only replacement parts recom- mended by the manufacturer. 6. Use McIntosh Remote Control Model HR056 with the MCD301.

SAFETY INFORMATION CAUTION:

Invisible Laser Radiation when open. DO NOT stare into the beam or view directly with optical instruments. Use of controls or adjustments or performance of procedures other than those speci- fied in the Owners Manual may result in Hazardous Radiation Exposure.

Servicing of laser mechanism is to be performed at the service facility at McIntosh Laboratory Inc.

This product incorporates an embedded Class 3R Laser (IEC60825-1).

LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT VAROITUS! Laitteen kayttaminen muulla kuin

tassa kayttoohjeessa mainitulla tavalla saattaa altistaa kayttajan turvallisuusluokan 1 ylittavalle nakymattomalle lasersateiiylle.

VARNING!

Om apparaten anvands pa annat satt an i denna bruksanvisning specificerats, kan anvandaren utsattas for osynbg laserstraining, som overskrider gransen for laserklass 1.

3


NOTES

4


MCD301

REAR PANEL

SECTION LOCATIONS TOP VIEW WITH COVER REMOVED

5


BLOCK DIAGRAM

6


MCD301

INTERCONNECT 1 2

3

YEL BLU GRY

BLU

VIO

YEL

ORN

RED

J3

7

25 J8

24 13

GND NC NC GND REM OUT GND KEY1 KEY0 DATA CLK CS RST GND

J1 18

2 1

17

CX131

5

BLK WHT

GND BACK GND NEXT GND LEV-D 5VD LEV-U

BLK BLU GRY VIO ORN WHT 12OVB 20VB 0VB 120VA 100VA 0VA 6

1

MECHANISM

GRN

J5

13

J6

SPDIF GND MUTE MODE GND DSDL/PDL DSDR/PDR GND PLRCK GND PBCK GND MS MDI MC MDO RST PURE DIR MODE 3 GND MCLK GND MCK2 GND DBCK

REM IN REM OUT A2 MUTE LED A3 GND A0 INI A1 CL LEV-D DI LEV-U CE NS5V RST SSTBY/ON GND

25 GRN

CX131

1

SPDIF GND MUTE MODE GND DSDL/PDL DSDR/PDR GND PLRCK GND PBCK GND MS MDI MC MDO RST PURE DIR MODE 3 GND MCLK GND MCK2 GND DBCK

2

1

5VD 3.3VD GND 3.2V GND FF+

13

CY101

AC11.5V AC11.5VCT AC11.5V AC26V AC26VCT AC26V AC6V AC6V T1

LEFT GND RIGHT GND

12 17

10

1

BLK

4

11

J7

MAIN

YEL BLU YEL RED BLK RED BRN BRN

1

2

J16

1

1

NS3.3V POWER GND -12V GND 12V GND 5VD GND 3.3VD

1

CX251

10 7

1

J3 J1

J2 9

GND GND GND NS3.3V POWER IN POWER GND -12VA GND 12VA GND 5VD GND 3.3VD GND NS5V NS5V GND

3.3VD GND 5VD GND 12V GND -12V GND POWER NS3.3V

POWER

6

GND GND GND NS3.3V POWER IN POWER GND -12VA GND 12VA GND 5VD GND 3.3VD GND NS5V NS5V GND

18

1

2

J4

11

12

BLK

WHT

17

18

120V AC 50/60Hz

CONTROL

J1

8

2 7

RED

1

1

LEFT GND RIGHT GND

J1

4

13

4

1 J2

DISPLAY

GND BACK GND NEXT GND LEV-D 5VD LEV-U J3

1 12

2

8

1

7

2 J2

REM IN REM OUT A2 MUTE LED A3 GND A0 INI A1 CL LEV-D DI LEV-U CE NS5V RST STBY/ON GND

7

GND NC NC GND REM OUT GND KEY1 KEY0 DATA CLK CS RST GND

5VD 3.3VD GND 32V GND FF+

PRIMARY

17

8

1 2

18 J4

HEADPHONE

7

8


2 MAIN 750771 SCH 1 OF 3

C40 220uF

GND

GND C24 .1uF

3

U5

4

J4:14

4

4

MUTE CONT

J1:9

A2

J1:3

11

10

9

8

3

C14 .01uF

VCC

1 2

A B GND

U3

Y

Y

R47 47.5k

14

Y1 6.0MHz GNDC

6

1

5

2

4

3

A

1

C39 220uF

2 5

IR IN

1 D8

J3

Q

B\

Q\

R\

J7:12

5VD

J7:11

GND

J7:10

12VA

J7:9

GND

J7:8

-12VA

J7:7

GND

J7:17

NS5V

J7:16

NS5V

J7:18

GND

J7:15

GND

J7:6

POWER

J7:5

POWER IN

J7:4

NS3.3V

J7:3

GND

J7:2

GND

J7:1

GND

GND

RXCX

5 3 1 2

R49 1k

D7

2

L5

2 15

DATA IN

1 J4

47.5 R54 R50 22.1k

4 U10B

U10D

4 5

13

11

12

5 4

1

R33 8.25k

POWER CONTROL DRIVER 3

2

B+

R51 22.1k C36 .01uF

2

L3

2 1

5V

J5

5

IN

1 47.5 R55

POWER CONTROL

GND U10A

9

8

10

R52 562

2

L4

2 1

5 1

47.5 R56

9

2

4 D4

.1uF C27

R53 1.5k U31

15

8

5

13

U10C J1:18

GND

U11A

B+ 6

11

C147 .1uF

J1:5

J7:13

12

D5

8

47.5k R39

9

16

RXCX

C26 1000pF

10

6

VCC

R\

C28 1uF

11

U7 8.25k R32

Q\

CX

B GND

B\

CX

47.5k R37

A

A Q

C34 .1uF

R38 4.75M

R34 1.5k

12

C150 .47uF

TRIG

9

13

7

2

3

A3

OUTPUT

GND

10

14

14

A1

Q7

U11B

C23 .1uF

C18 .1uF J1:7

TRIG

12

(OD) P1.2

RESET

U9

1

J1:1

A0

R210 100k

C22 .1uF

R30 100k

R28 4.75M

C19 .47uF

7

13

P1.3 (IO)

P1.4 (IO)

XTAL/P3.0

XTAL/P3.1

C17 1uF

14

CTLVOL

OUTPUT

6

15

THRS

RESET

5

16

DISCHG

CTLVOL

C21 1000pF

17

P2.2

VSS

R27 47.5k

R22 47.5k 20

19

P0.6

P0.7

22

21

VDD

(OD) P0.5

24

P0.3

P0.2

(IO)

P2.3

R5 * 0

3

GND U12

D6

REM IN

P2.1 P1.6 (IO)

J1:2

P2.4

RST/P1.5

REM OUT

R6 0

P2.0

7

J1:17

P2.5

VDD

THRS

4 C16 1000pF

18

P1.0 P1.1

P1.7

DISCHG

2 3

P2.7

P0.0

1

U2

P2.6

6

STBY/ON

P0.4

25

4

23

2

3

3 D1

GND J4:1

2

Y

3.3V REGULATOR U13 1 3 OUT IN

2

B

7

4

1

1

A

C13 .1uF

C30 .1uF

J4:16

28

VCC

-12VA

2

R44 1k

15K R25

4

27

C148 220uF

C149 .1uF

5

.1uF C20

R21 15K

J4:10

4

4

P0.1

L2

1

3

Y

4.75k R23

Y

2

3

C38 .1uF

B

MUTE

2

B

2

A

1

A

R46 4.75k

100uF C37

VCC

4

R43 681 Q5

3

.1uF C35

5 1

100uH L6

12VA Q4

1

C12 47uF

3

J4:12

4

26

100 R10

2

J4:18

CS

1

4

J1:11

100 R9

5

J4:17

LEV-D

2

DATAI

R16 15K

4

J1:13

2

100 R8

0 R14

J4:2

LEV-U

3

R2B 100

SCLK

R15 15K

4

J1:16

1

R2A 100

4

1000pF C11

J4:8

4

RST

J1:14

1

R1A 100

R13 15K

J4:6

4

CE

J1:12

3

R7 5x47k

1000pF C10

J4:3

4

DI

J1:10

R1B 100

R12 15K

J4:5

4

CL

J1:8

R11 15K

J4:7

4

INI

5

J4:9

4

R208 15K

4

J4:11

4

6

J4:14

3.3VD

1

3

U8

2

47.5k R48

VCC

4

D3

100k R36

2

R26 47.5k

Q2

3

GND U6

R42 4.7

475k R45

J1:5

Y

5VA R41 4.7

C32 47uF

NS5V

4 R31 0

D2

2

B

.1uF C31

7

2

-11.5VA J1:6

3

1

A

R40 10k

SPDIF

2

5

J1:4

GND

GND

VCC

22uF C25

Y

5

2

10k R29

.47uF C15

GND

1

4

MUTE LED

4

1

R35 332

1

J4:13

4

B

OMUTE

1 U1A

3

B+

C9 47uF

C6 .1uF

.1uF C1

J4:15

A

U4

HMUTE

3

C4 47uF

C3 .1uF

INPUT GND

R20 22.1

U1D

VCC

14

VCC

1

2

Q3

12

5 R24 10k

3

13

11

3

R18 47.5k

J7:14

1

1

9 U1C

L1 18uH

Q1

3

10

8

.1uF C2

OPTICAL OUT OPT1 2

R17 2K

U1B

100pF C33

C8

.1uF

3.3VA

3300uF C29

4

2

2 T1

6

L7 100uH

1 3.3VD

5

R19 47.5k

4

FN1

2

C7 10uF

3

R4 332

1

100 R3

3

150pF C5

COAXIAL OUT J2 2 1

10

J6 OUT

6

J4:14

6

J4:13

6

J4:12

6

J4:11

6

J4:10

6

J4:9

6

J4:8

6

J4:7

6

J4:17

6

J4:16

6

J4:18

6

J4:15

6

J4:6

6

J4:5

6

J4:4

6

J4:3

6

J4:2

6

J4:1


MCD301

2 MAIN 750771 SCH 2 OF 3

LEFT+

.001uF C88

48 R71 22.1

A14

A2

A13

A3

A12

A4

GND

2

16 15 14 13

Y2

FN3

1

+ U18A

2

-

BB+

U16D

.0022uF R89 365 C69 6

8

R68

7

11

2.67k R85 150 R84

C73 470uF

2 R124 47.5k

1 .001uF C89

2

4

G

FIXED LEFT BALANCED OUTPUT

R143 1k

4 C108 .1uF

1 R132 499

R138 100 2

C84 .0022uF

C94 10uF

Q10

3

C102 47uF

2 J10A

R144 1k

FIXED LEFT UNBALANCED OUTPUT

1

R118 1.33k

R125 47.5k

8

1

C104 47uF

6

2.21k R99

2.94k R105 RIGHT- FILTER

0V 7

+

-

R139 100

R127 47.5k

Q11

3

C105 47uF

R145 1k

J12

1

-

+

R133 499 2

B+

R115 2.67k

U20A 2

-

C82 330pF

U20B

3

C99 47uF

0V 1

B-

11.5VA

R116 2.67k

5 FIXED RIGHT UNBALANCED OUTPUT DRIVER 5

-11.5VA

1 -4.4V

.1uF C110

FIXED RIGHT+ -11.5VA BALANCED OUTPUT DRIVER

+

U23A 2

100 R104

RIGHT+ I/V CONVERTER

365 R94

.1uF C55

.1uF C50

R103 2.94k

5 -11.5VA 3

11.5VA 8x47k

.0033uF C78

8 4

RIGHT- I/V CONVERTER

+

3.3VD

3

R108 2.21k

R98 2.21k

-4.4V 7

-

.1uF C109

RIGHT+ FILTER

U18B

+

3

BB+

11.5VA

0V 1

R117 2.67k

RIGHT-

6

U23B 6

+ U21B

FIXED RIGHTBALANCED OUTPUT DRIVER

+

C100 47uF

0V 7

-

0V 7

2

+

3

-

1

G

FIXED RIGHT BALANCED OUTPUT

S R134 499

R140 100

Q12

3

C106 47uF

R146 1k

4

A1

Q9

2

46

A15

2.21k R107

470uF C72

-

J11 2

C111 .1uF

1

45

A0/GOEO

R122 5.62

330pF C81

RIGHT+

R83 2.67k

5

17

3

-

C101 47uF

R121 1.33k -11.5VA

C87 .0022uF

-12VA

330pF C83 2.21k R109

12

5.62 R123

R135 499

R141 100 2

R70 47.5

CLK1/I

18

R137 100

Q13 1

44

20 19

R142 1k

3

S R131 499

12VA

R128 47.5k

CLK2/I

C98 47uF 11.5VA

R114 2.67k

100pF C64

B0

U14

42

3

41

21

B+

R120 1.33k 11.5VA C86 .0022uF

150 R80 R82 150

4

R69 22.1

B1

3

40

2.67k R81

6

C103 47uF

C71 470uF

4

22

-

R129 47.5k

11

-

4

R76 47.5

.0022uF R87 365 C67 14

2

LEFT-

-

LEFT- FILTER

8

39

-

R113 2.67k

6

8

15

Q8

0V 1

C95 10uF

6

16

2.94k R102

U21A

B-

.001uF C90

17

2.21k R97

6

+

.001uF C91

18

7 -4.4V

U17B

0V 7

U19B

-11.5VA 3

C97 47uF

0V 7

U22B

C92 .1uF

10k R77

.1uF C75

+

FIXED LEFT UNBALANCED OUTPUT DRIVER

C93 .1uF

19

LEFT+ I/V CONVERTER

+

4

100pF C65 5

20

5

R136 100

FIXED LEFTBALANCED OUTPUT DRIVER

+

8

21

-11.5VA

5

C85 .0022uF

VCC2R

R\S\T\

C61 47uF

22

+

B-

R112 2.67k

0V 1

R119 1.33k

AGND3R

MDO

-11.5VA

23

R111 2.67k

4

IOUTR+

MC

100 R101

B+

8

IOUTR-

C74 47uF

.0033uF C79

MDI

3

LEFT- I/V CONVERTER

.0033uF C76

AGND1

U19A

.0033uF C77

M\S\

B-

-

365 R92

IREF

U17A +

2

B+

OMUTE R130 499

11.5VA

11.5VA

365 R93

VCOMR

VDD

24

3

.1uF C59

VCOML

DGND

C60 47uF

25

10uF C57

C52 100pF R75 47.5

.1uF C51

SCK

26

C54 .1uF

J8:1

VCC1

PBCK

C53 100uF

DBCK

AGND2

VDD

J8:2

PDATA

27

25

23

47 GND

IOUTL+

E/D

J8:3

10k R73

332 R72 26

27

38

GND OUT

MCK2

IOUTL-

PLRCK

-4.4V 1

B+

C68 365 .0022uF R88

2

J8:4

C49 100pF

C48 100pF

C47 .1uF

C46 10uF

3

C45 .1uF

24

43 GND

AGND3L

DBCK

-

R96 2.55k

R100 2.94k

C96 47uF

0V 1

B-

R126 47.5k

R90 11k

R95 2.21k

-

C80 330pF

LEFT+ FILTER

365 R91

12 4

5

.1uF C63

.1uF C58

10uF C56

470uF C70

U22A 2

R106 2.21k

1

J8:5

37

J9:3

MCLK

DSDR

C62 10uF

28

9

J9:7

J8:6

VCC2L

10

J8:7

GND

DSDL

16

J9:4

MODE3

28

J8:8

29

PURE DIR

32

R67 47.5

30

J8:9

31

RST

2

U16C

J9:6

3

R79 2.67k

C66 365 .0022uF R86

12

CX251:25

2

15

2K R74

3

VSS GND

U16B

A9

CX251:24

R66 47.5

9

3

J8:10

11

CX251:23

J8:11

MDO

10

CX251:22

3

MC

R65 47.5

SPDIF

J9:1

3

J8:12

R64 47.5

J9:2

3

CX251:21

R63 47.5

14

8

CX251:20

J8:13

13

A8

3

MS

12

VCCO

CX251:19

J8:14

GND

3

J8:15

GND

11

7

CX251:18

R62 22.1

A7

3

10

6

3

CX251:17

FN2

5

CX251:16

8 9

J9:9

3

J8:16

7

2

J9:8

CX251:15

1

PBCK

MDI

3.3VA

33

3

GND

R60 22.1

34

CX251:14

J8:17

35

3

PLRCK

6

A5

CX251:13

J8:18

5

A6

CX251:12

3

GND

4

2

3

3

2

4

CX251:11

R59 22.1

3

3

J8:19

J9:10

CX251:10

1

C44 .1uF

3

DSDR/PDR

36

CX251:9

1

TDI

3

R58 22.1

3

U15

1

CX251:8

J8:20

VDD

R78 150

11.5VA

J9:5

3

DSDL/PDL

U16A

-11.5VA

C42 47uF

3

CX251:7

J8:21

.1uF C43

CX251:6

J8:22

GND

C41 100pF

3

MODE

8

CX251:5

VL

L8 18uH

MUTE

9

3

J8:23

7

CX251:4

MUTE

6

3

J8:24

5

CX251:3

GND

5VA

R61 47.5k

4

3

R57 22.1

J8:25

1

CX251:2

SPDIF

3

3

2

CX251:1

13

11.5VA

FIXED LEFT+ -11.5VA BALANCED OUTPUT DRIVER

+

4

3

8

R110 2.67k -11.5VA

3

C107 47uF

R147 1k

3 J10B

FIXED RIGHT UNBALANCED OUTPUT


2 MAIN 750771 SCH 3 OF 3 -11.5VA +

LEFT+ BALANCED VARIABLE OUTPUT DRIVER

B-

0V 1

C126 47uF

R170 499

R176 100

R164 47.5k

8

-

C132 47uF

B+ 2

U27A

11.5VA

Q14

R182 1k

J14

1

R160 10k

3

R161 10k

9

.1uF C142

J13A

1

D10 3

R206 100

10 R195

LEFT HEADPHONE OUTPUT DRIVER

1

K1

2

10 R203

LEFT

4 3

J16:1

GND

RIGHT+ BALANCED VARIABLE OUTPUT DRIVER

U28A 2

B-

0V 1

C129 47uF

R173 499

R179 100

-

C141 22pF

C135 47uF

B+

11.5VA

Q17

J15 2 3

1

R162 10k

3

R185 1k

1

R163 10k

0V 7

C130 47uF

R180 100

R174 499 2

U28B +

3

Q18

+ U26B -

2

-

0V

6

D12

C131 47uF

0V 7 RIGHT UNBALANCED VARIABLE OUTPUT DRIVER

R175 499

R181 100

3

Q19

R187 1k

J2:3

J16:4

8

J2:1

8

J2:2

12VA

3

Q22

3 RIGHT HEADPHONE OUTPUT DRIVER

10 R197

R204 10

R201 4.75k

10 R205 Q23

-12VA

R186 1k

C137 47uF

4.75k R200

D11

J13B 3 VARIABLE RIGHT UNBALANCED OUTPUT

1

6

U30

C139 .1uF

2

5

G

C136 47uF

1

5

-

VARIABLE RIGHT BALANCED OUTPUT

S

-

RIGHT- BALANCED VARIABLE OUTPUT DRIVER

+

+

4

6

R196 10 3

GND

C146 .1uF

R192 100k -11.5VA +

8

D13

Q21

R199 4.75k

R191 22.1k

3

J2:4

-12VA

C125 22uF

.1uF C122

8

2

2 VARIABLE LEFT UNBALANCED OUTPUT

HMUTE

R202 10

J16:2

C115 .0022uF

13

1

7

D9

C144 .1uF

R184 1k

Idle=4.5mA

4

-

6

1 R166 47.5k

3

Q16

C134 47uF

2

R188 2.55k

5 2 R165 47.5k

1

R178 100 2

R172 499

C124 22uF

10uF C123

R155 1.33k

LEFT UNBALANCED VARIABLE OUTPUT DRIVER

11.5VA

U25

-

2

Q20

2

AINR

0V

U29

C138 .1uF

3

1

10

3

Q15

R183 1k

+

1

AGNDR

12VA

2

M\U\T \E\

11

3

4.75k R198

C145 .1uF

DATAO

12

R194 10

.1uF C143

7

VA+ AOUT R

C133 47uF

7

SCLK

R177 100

4

DGND

6

B+

R168 47.5k

6

5

C140 22pF

5

13

R190 100k

8

VA-

VD+

G

1

14

1

R193 22.1k

VARIABLE LEFT BALANCED OUTPUT

R189 2.55k

15

AOUTL

-

1

AGNDL

8

C117 22uF

R171 499

2

R156 100k

C\S\ DATAI

C121 .1uF

-

C128 47uF

0V 1

R169 47.5k

U24B

0V 7

R157 100k

+

16

3

10uF C118

RIGHT-

C113 .0022uF

R153 1.33k R151 2.67k

5

AINL

2

4

RIGHT VARIABLE OUTPUT FILTER

ZCEN

2

B-

R167 47.5k

1

C114 .0022uF

RIGHT+

C120 10uF

LEVEL CONTROL

R154 1.33k 11.5VA

R150 2.67k

U26A

4

B+

+

8

4

-

0V 1

C116 22uF

3

-11.5VA 11.5VA

8

2

LEFT-

B-

U24A

5VA

L9 18uH

.1uF C119

R149 2.67k

+

8

C112 .0022uF

R152 1.33k

-11.5VA 3

+

4

CS

R159 10k

LEFT+

SCLK DATAI

0V 7

U27B

C127 47uF

-11.5VA

R158 10k

LEFT VARIABLE OUTPUT FILTER

R148 2.67k

3

S

-

LEFT- BALANCED VARIABLE OUTPUT DRIVER 5

+

4

6

2

8

2

OMUTE

4

3

14

R207 100

1 2

K2

RIGHT

4 3

J16:3


MCD301

2 MAIN 750771 PCB

J16

15

16


4 DISPLAY 750773 SCH DS3

F+

F+

17

R13 2.87k

R14 3.32k

4

NC

J2:11

NC

J2:12

5

J1:4

5

J1:6

5

J1:8

5

LEV-D LEV-U GND GND GND

J3:3 J3:1

PAUSE PLAY OPEN/CLOSE

J3:4 J3:6

DS1

DS2

STANDBY/ON

J4:11

INI

J4:17

REM OUT

J4:4

NS5V

J4:15

MUTE LED

J4:1

GND

J4:18

REM IN

R21 8.25k

J4:14

A3

R22 8.25k

J4:16

A2

R23 8.25k

J4:10

A1

R24 8.25k

J4:12

A0

J4:2

STBY/ON

J4:8

LEV-D

J4:6

LEV-U

100pF C30

100pF C29

100pF C28

.1uF C31

1

R19

100pF C18

S6 S7 S8 S9

2

L3

1

MUTE DS6

2

14

3

13

4

12

5

11

6

10

7

9

8

.1uF C33

47uF C32

J2:8

2

J2:2

2

J2:15

2

J2:4

2

J2:18

2

J2:1

2

J2:5

2

J2:3

2

J2:9

2

J2:7

2

J2:17

2

J2:11

2

J2:13

3

Vout 1

2

GND 3

2

2

R20 8.25k

Q1

U1

J3:8

17

2

1

15

Vcc

R16 10

ST/ON DS5

9

S5

1

C27 10uF

3 Q3 1

STOP

S4

16

R18 47.5k

.01uF C24

J1:1

RANDOM

S3

.01uF C17

5

J3:5

TIME

.1uF C25

S2

.01uF C15

J1:3

NEXT

R25 8.25k

5

J3:7

47uF C7

J1:5

BACK

.1uF C5

5

2

R4 100

J1:7

2

C26 39pF

10uF C13

R11 8x10k

SACD/CD

J3:2

R2 100

5

GND

2

5x47k

MT1

R15 4.75k

J2:13

2

S1

J1:2

J4:13

1

2

MUTE 5VD

RST

R7

.01uF C23

GND

J4:3

2

6

J2:10

5

GND

4

J2:9

3

REM OUT

2

3

J2:8

5x47k

3

CX131:1

GND

.01uF C22

3

J2:7

4

CX131:2

KEY1

5

3

J2:6

.01uF C21

CX131:3

CE

2

6

1

3

KEY0

R10C 100

6

CX131:4

5

.01uF C20

3

J2:5

8

CX131:5

J4:5

3

4

7

3

CL

8

.01uF C19

CX131:6

DATA

R10B 100

100pF C16

3

3

R10D 100

2

100pF C14

CX131:7

J2:4

R10A 100

.1uF C12

3

CLK

1

CX131:8

7

2

3

J2:3

J4:9

7

3

CX131:9

CS

Q2

3

1

2

1

CX131:10

J2:2

.1uF C4

3

RST

.1uF C2

CX131:11

J2:1

150 R3

3

GND

150 R1

CX131:12

10uF C11

L1

3

R17A 100

DI

2

CX131:13

R17B 100

5

1k R5

J1:7

8 R12 47.5k

J4:7

5

6

R9 10

R17D 100

3

J1:5

R17C 100

6

4

TEST

16

DO

14

13

CP

DA

12

RESET

CS

11

10

OSC

8

9

VDISP

VDD

DGND

6

7

F-

LGND

5

4

F-

2

1

LGND

F+ 26

PGND

23

VH

22

21

OSC

VDD

20

RESET

19

CP

CS

18

17

DA

16

TSB

TSA

14

15

13

R8 10

1

5VD

1

2

F-

C10 47uF

J1:3

FN1

47uF C9

GND

1

47uF C8

J1:6

.1uF C6

3.3VD

L2 18uH

.1uF C3

J1:4

3

32V

GND

DS4

J1:1

1k R6

F+

J1:2

47uF C1

F-

18


MCD301

4 DISPLAY 750773 PCB

19

20


J3:7

BACK

J1:7

4

DS1

DS2

DS3

CCW

J1:2

R4 100

5VD 4

R2 100

J3:2

R1 100

5 CONTROL 750295 SCH and PCB

2

J3:3

4

J3:4

4

J3:6

4

J3:1

4

J3:8

4

NEXT

J1:5

LEV-D

J1:3

GND

J1:4

GND

J1:6

LEV-U

J1:1

1

GND

J1:8

C2 .1uF

1 CW

4

2

3

S2

J3:5

S1

3

C3 .1uF

C4 .1uF

21

22


MCD301

6 POWER 750772 SCH

2

1 HS2

U1

2

5V

3

OUT IN

D3

J1:2

J1:3

J1:4

4

4

4

J1:5

4

J1:6

4

J1:7

4

F-

32V

J1:3

C3 22000uF

D5

J1:2 2.4V

GND

C2 .1uF

470uF C1

D1

D4

1 R2 1.82k

HS1

2

C24 470uF

2

C25 470uF

2

22000uF C15

.1uF C20

C26 470uF

2

.1uF C21

1

HS5

3

R11 10k

2

R12 1.21k

Q3

J4:3

NS5V

J4:4

GND

J3:1

3.3VD

J4:5

3.3VD

J3:2

GND

J4:6

GND

J3:3

5VD

J4:7

5VD

J3:4

GND

J4:8

GND

J3:5

12V

J3:6

GND

J4:9

12VA

J4:10

GND

J4:11

-12VA

J4:12

GND

J3:7

-12V

J3:8

GND

J3:9

POWER

J4:13

POWER

R9 249

D11 D7

R6 10k

16.5V D13 D14

D15 D16

12V REGULATOR U6 1 3 IN OUT

-17V

2

IN OUT

1

HS6

2

2

J4:14

POWER IN

5VD

J1:7

J3:10

NS3.3V

J4:15

NS3.3V

J4:16

GND

J4:17

GND

J4:18

GND

3

U7 -12V REGULATOR

D6 1

R3 1.82k

FN1

2

.1uF C14

23

2

J7:17

2

J7:16

2

J7:15

3

CY101:1

2

J7:14

3

CY101:2

2

J7:13

3

CY101:3

2

J7:12

3

CY101:4

2

J7:11

3

CY101:5

3

CY101:6

2

J4:10

2

J4:9

2

J4:8

2

J4:7

3

CY101:7

3

CY101:8

3

CY101:9

2

J4:6

2

J4:5

3

CY101:10

2

J4:4

2

J4:3

2

J4:2

2

J4:1

1 HS7

J1:5

J1:6

J7:18

R10 249

J1:4

3.3VD

2

2

R8 10k GND

NS5V

3

1.8V

C6 47uF

J1:1

33.7V

R5 10k

F+

C12 220uF

C27 220uF

32V REGULATOR Q1 1 3

C28 220uF

R4 22.1

1

4

D21

2 K1 D2 11.2V

J1:1

D20

Q2

1

3

D19

2

2

J2:1

2 4

D18 RELAY DRIVER

1

NC

t

2

12V REGULATOR U5 1 3 IN OUT

15V

.1uF C22

T1

1

D17

.1uF C23

T1:

J2:2

D10

3300uF C17

T1

AC6V

1

HS4

1

3300uF C16

J2:3

1

5V

17V

J4:2

HS3

1

C13 .033uF

5V REGULATOR U2 3 1 OUT IN

R1 T1:GRN

2

3300uF C18

AC6V

3

2

GND

1

T1

5

6

T1AL F4

.033uF C4

T1:GRN

K3

4

1

5V REGULATOR U4 3 IN OUT

7V

R7 56.2 1W

J2:4

T1AL F3

1

3

AC26V

6

D12

J2:5

2

D9

AC26VCT

5

3

.033uF C10

J2:6

.1uF C19

4

T2AL F2 AC26V

K2

220uF C11

J2:7

D8

T1

AC14V

3.3V REGULATOR U3 1 3 IN OUT

T2AL F1

100uF C5

T1:YEL

T1

J2:8

C9 3300uF

T1:BLU

T1

AC14VCT

2

T1:YEL

T1

J2:9

C7 .1uF

T1:RED

T1

AC14V

C8 47uF

T1:BLK

T1

2

T1:RED

J4:1

24


6 POWER 750772 PCB

25

26


MCD301

NOT USED

240V AC 220V AC 120V AC

TO TRANSFORMER PRIMARY NOT USED

100V AC

NOT USED

7 PRIMARY 750614 SCH and PCB

120V B

J1:1

20V B

J1:2

0V B

J1:3

120V A

J1:4

100V A

J1:5

0V A

J1:6

120V B

J2:1

20V B

J2:2

0V B

J2:3

120V A

J2:4

100V A

J2:5

0V A

J2:6

120V B

J3:1

20V B

J3:2

0V B

J3:3

120V A

J3:4

100V A

J3:5

0V A

J3:6

120V B

J4:1

20V B

J4:2

0V B

J4:3

120V A

J4:4

100V A

J4:5

0V A

J4:6

AC L

J5

AC H

J6

F1 1A

27

28


8 HEADPHONE 750296 SCH and PCB

2

J16:2

2

J16:3

2

J16:4

2

LEFT

J2:4

GND

J2:3

J1 2

RIGHT

J2:2

GND

J2:1

3 1

C1 .1uF

J16:1

29

30


MCD301

PARTS LIST 2

MAIN PCB 750771 Ref No. Description C1 CAP MONO .1UF 50V 20% Z5U C2 CAP MONO .1UF 50V 20% Z5U C3 CAP MONO .1UF 50V 20% Z5U C4 CAP ELECT 47UF 35V C5 CAP MONO 150pF 5% 200V C6 CAP MONO .1UF 50V 20% Z5U C7 CAP ELECT 10UF 50V C8 CAP MPF 0.1UF 5% 63VDC C9 CAP ELECT 47UF 35V C10 CAP MONO 1000PF 50V 10% NPO C11 CAP MONO 1000PF 50V 10% NPO C12 CAP ELECT 47UF 35V C13 CAP MONO .1UF 50V 20% Z5U C14 CAP MONO .01UF 50V 20% C15 CAP DISC MONO .47UF 50V C16 CAP MONO 1000PF 50V 10% NPO C17 CAP MPF 1UF 5% 63VDC C18 CAP MONO .1UF 50V 20% Z5U C19 CAP DISC MONO .47UF 50V C20 CAP MONO .1UF 50V 20% Z5U C21 CAP MONO 1000PF 50V 10% NPO C22 CAP MONO .1UF 50V 20% Z5U C23 CAP MONO .1UF 50V 20% Z5U C24 CAP MONO .1UF 50V 20% Z5U C25 CAP ELECT 22UF 100V C26 CAP MONO 1000PF 50V 10% NPO C27 CAP MONO .1UF 50V 20% Z5U C28 CAP MPF 1UF 5% 63VDC C29 CAP ELECT 3300UF 35V C30 CAP MONO .1UF 50V 20% Z5U C31 CAP MONO .1UF 50V 20% Z5U C32 CAP ELECT 47UF 35V C33 CAP MONO 100PF 100V 10% NPO C34 CAP MONO .1UF 50V 20% Z5U C35 CAP MONO .1UF 50V 20% Z5U C36 CAP MONO .01UF 50V 20% C37 CAP ELECT 100UF 25V C38 CAP MONO .1UF 50V 20% Z5U C39 CAP ELECT 220UF 25V C40 CAP ELECT 220UF 25V C41 CAP MONO 100PF 100V 10% NPO C42 CAP ELECT 47UF 16V C43 CAP MONO .1UF 50V 20% Z5U C44 CAP MONO .1UF 50V 20% Z5U C45 CAP MONO .1UF 50V 20% Z5U C46 CAP ELECT 10UF 16V C47 CAP MONO .1UF 50V 20% Z5U C48 CAP MONO 100PF 100V 10% NPO C49 CAP MONO 100PF 100V 10% NPO C50 CAP MONO .1UF 50V 20% Z5U C51 CAP MONO .1UF 50V 20% Z5U C52 CAP MONO 100PF 100V 10% NPO C53 CAP ELECT 100UF 16V 5MM C54 CAP MONO .1UF 50V 20% Z5U C55 CAP MONO .1UF 50V 20% Z5U C56 CAP ELECT 10UF 16V C57 CAP ELECT 10UF 16V C58 CAP MONO .1UF 50V 20% Z5U C59 CAP MONO .1UF 50V 20% Z5U C60 CAP ELECT 47UF 16V

Ref No. C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 C94 C95 C96 C97 C98 C99 C100 C101 C102 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 C115 C116 C117 C118 C119 C120 C121 C122 C123 C124

Part No. 061346 061346 061346 066446 061349 061346 066445 064325 066446 061344 061344 066446 061346 061345 061320 061344 064337 061346 061320 061346 061344 061346 061346 061346 066574 061344 061346 064337 066509 061346 061346 066446 061341 061346 061346 061345 066573 061346 066507 066507 061341 066380 061346 061346 061346 066580 061346 061341 061341 061346 061346 061341 066576 061346 061346 066580 066580 061346 061346 066380

31

Description CAP ELECT 47UF 16V CAP ELECT 10UF 16V CAP MONO .1UF 50V 20% Z5U CAP MONO 100PF 100V 10% NPO CAP MONO 100PF 100V 10% NPO CAP MPF 0.0022UF 5% 63VDC CAP MPF 0.0022UF 5% 63VDC CAP MPF 0.0022UF 5% 63VDC CAP MPF 0.0022UF 5% 63VDC CAP ELECT 470UF 16V CAP ELECT 470UF 16V CAP ELECT 470UF 16V CAP ELECT 470UF 16V CAP ELECT 47UF 16V CAP MONO .1UF 50V 20% Z5U CAP MPF 0.0033UF 5% 63VDC CAP MPF 0.0033UF 5% 63VDC CAP MPF 0.0033UF 5% 63VDC CAP MPF 0.0033UF 5% 63VDC CAP MONO 330PF CAP MONO 330PF CAP MONO 330PF CAP MONO 330PF CAP MPF 0.0022UF 5% 63VDC CAP MPF 0.0022UF 5% 63VDC CAP MPF 0.0022UF 5% 63VDC CAP MPF 0.0022UF 5% 63VDC CAP PF 0.001UF 5% 63VDC CAP PF 0.001UF 5% 63VDC CAP PF 0.001UF 5% 63VDC CAP PF 0.001UF 5% 63VDC CAP MONO .1UF 50V 20% Z5U CAP MONO .1UF 50V 20% Z5U CAP ELECT 10UF 50V CAP ELECT 10UF 50V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP MONO .1UF 50V 20% Z5U CAP MONO .1UF 50V 20% Z5U CAP MONO .1UF 50V 20% Z5U CAP MONO .1UF 50V 20% Z5U CAP MPF 0.0022UF 5% 63VDC CAP MPF 0.0022UF 5% 63VDC CAP MPF 0.0022UF 5% 63VDC CAP MPF 0.0022UF 5% 63VDC CAP ELECT 22UF 100V CAP ELECT 22UF 100V CAP ELECT 10UF 16V CAP MONO .1UF 50V 20% Z5U CAP ELECT 10UF 16V CAP MONO .1UF 50V 20% Z5U CAP MONO .1UF 50V 20% Z5U CAP ELECT 10UF 16V CAP ELECT 22UF 100V

Part No. 066380 066580 061346 061341 061341 064454 064454 064454 064454 066508 066508 066508 066508 066380 061346 064455 064455 064455 064455 061332 061332 061332 061332 064454 064454 064454 064454 064453 064453 064453 064453 061346 061346 066445 066445 066380 066380 066380 066380 066380 066380 066380 066380 066380 066380 066380 066380 061346 061346 061346 061346 064454 064454 064454 064454 066574 066574 066580 061346 066580 061346 061346 066580 066574


PARTS LIST con’t MAIN PCB 750771 (cont’d) Ref No. Description

Part No.

C125 C126 C127 C128 C129 C130 C131 C132 C133 C134 C135 C136 C137 C138 C139 C140 C141 C142 C143 C144 C145 C146 C147 C148 C149 C150 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 FN1 FN2 FN3 J1 J2 J3 J4 J5 J6 J7 J8 J9 J16 J10 J11 J12 J13 J14 J15 K1 K2

066574 066380 066380 066380 066380 066380 066380 066380 066380 066380 066380 066380 066380 061346 061346 061339 061339 064325 064325 061346 061346 061346 061346 066507 061346 061320 070174 070174 070031 070174 070174 070174 070174 070174 070174 070174 070174 070174 070174 180057 180057 180057 117908 117798 117945 117945 117945 117945 117908 117974 117829 117215 117788 117686 117686 117788 117686 117686 087050 087050

CAP ELECT 22UF 100V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP ELECT 47UF 16V CAP MONO .1UF 50V 20% Z5U CAP MONO .1UF 50V 20% Z5U CAP MONO 22PF 200V 10% NPO CAP MONO 22PF 200V 10% NPO CAP MPF 0.1UF 5% 63VDC CAP MPF 0.1UF 5% 63VDC CAP MONO .1UF 50V 20% Z5U CAP MONO .1UF 50V 20% Z5U CAP MONO .1UF 50V 20% Z5U CAP MONO .1UF 50V 20% Z5U CAP ELECT 220UF 25V CAP MONO .1UF 50V 20% Z5U CAP MONO .47UF 50V DIODE SILICON DIODE SILICON DIODE SIL 400 PIV @ 1.5A DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON FILTER EMI FILTER EMI FILTER EMI CONN FFC 18PIN JACK RCA ORANGE WITH GOLD JACK HEADPHONE STEREO 1/8IN JACK HEADPHONE STEREO 1/8IN JACK HEADPHONE STEREO 1/8IN JACK HEADPHONE STEREO 1/8IN CONN FFC 18PIN CONN 25 PIN FFC 10 PIN HEADER CONN 4 PIN JACK RCA 1X2 WHT/RED 14MM RECEPTACLE XLR MALE RECEPTACLE XLR MALE JACK RCA 1X2 WHT/RED 14MM RECEPTACLE XLR MALE RECEPTACLE XLR MALE RELAY REED FORM 1A 5V 500 OHMS RELAY REED FORM 1A 5V 500 OHMS

32

Ref No. Description

Part No.

L1 L2 L3 L4 L5 L6 L7 L8 L9 OPT1 PCB1 Q1 Q2 Q3 Q4 Q5 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 Q19 Q20 Q21 Q22 Q23 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 R28 R29 R30 R31

122394 076023 076023 076023 076023 122406 122406 122394 122394 058180 129870 132304 132304 132304 132317 132263 132263 132257 132257 132257 132257 132257 132257 132257 132257 132257 132257 132257 132257 132302 132263 132302 132263 144680 144680 144568 144646 141554 141554 144499 144568 144568 144568 144623 144623 144623 141554 144623 144623 144517 144526 144526 144554 144623 144526 144520 144504 144623 144526 144526 144608 144504 144528 141554

CHOKE 18UH 5%-10% BEADS FERRITE LEADED BEADS FERRITE LEADED BEADS FERRITE LEADED BEADS FERRITE LEADED INDUCTOR 100UH POWER INDUCTOR 100UH POWER CHOKE 18UH 5%-10% CHOKE 18UH 5%-10% TRANSMITTER FIBER OPTIC PC BD MAIN TRANSISTOR PNP SILICON TRANSISTOR PNP SILICON TRANSISTOR PNP SILICON TRANSISTOR NPN SILICON TRANSISTOR PNP TRANSISTOR PNP TRANSISTOR NPN TRANSISTOR NPN TRANSISTOR NPN TRANSISTOR NPN TRANSISTOR NPN TRANSISTOR NPN TRANSISTOR NPN TRANSISTOR NPN TRANSISTOR NPN TRANSISTOR NPN TRANSISTOR NPN TRANSISTOR NPN TRANSISTOR NPN 2A 50V TRANSISTOR PNP TRANSISTOR NPN 2A 50V TRANSISTOR PNP RES NETWORK 2X100 OHM ISOLATED RES NETWORK 2X100 OHM ISOLATED RES MF 100 OHM 1% 1/4W RES MF 332 OHM 1% 1/4W RES CF 0 OHM 5% 1/4W RES CF 0 OHM 5% 1/4W RES NETWORK 5X47K BUSSED RES MF 100 OHM 1% 1/4W RES MF 100 OHM 1% 1/4W RES MF 100 OHM 1% 1/4W RES MF 15K 1% 1/4W RES MF 15K 1% 1/4W RES MF 15K 1% 1/4W RES CF 0 OHM 5% 1/4W RES MF 15K 1% 1/4W RES MF 15K 1% 1/4W RES MF 2K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 22.1 OHM 1% 1/4W RES MF 15K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 4.75K 1% 1/4W RES MF 10K 1% 1/4W RES MF 15K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 4.75M 1% 1/4W RES MF 10K 1% 1/4W RES MF 100K 1% 1/4W RES CF 0 OHM 5% 1/4W


MCD301

PARTS LIST con’t MAIN PCB 750771 (cont’d) Ref No. Description R32 RES MF 8.25K 1% 1/4W R33 RES MF 8.25K 1% 1/4W R34 RES MF 1.5K 1% 1/4W R35 RES MF 332 OHM 1% 1/4W R36 RES MF 100K 1% 1/4W R37 RES MF 47.5K 1% 1/4W R38 RES MF 4.75M 1% 1/4W R39 RES MF 47.5K 1% 1/4W R40 RES MF 10K 1% 1/4W R41 RES MO 4.7 OHM 5% 1W R42 RES MO 4.7 OHM 5% 1W R43 RES MF 681 OHM 1% 1/4W R44 RES MF 1K 1% 1/4W R45 RES MF 475K 1% 1/4W R46 RES MF 4.75K 1% 1/4W R47 RES MF 47.5K 1% 1/4W R48 RES MF 47.5K 1% 1/4W R49 RES MF 1K 1% 1/4W R50 RES MF 22.1K 1% 1/4W R51 RES MF 22.1K 1% 1/4W R52 RES MF 562 OHM 1% 1/4W R53 RES MF 1.5K 1% 1/4W R54 RES MF 47.5 OHM 1% 1/4W R55 RES MF 47.5 OHM 1% 1/4W R56 RES MF 47.5 OHM 1% 1/4W R57 RES MF 22.1 OHM 1% 1/4W R58 RES MF 22.1 OHM 1% 1/4W R59 RES MF 22.1 OHM 1% 1/4W R60 RES MF 22.1 OHM 1% 1/4W R61 RES MF 47.5K 1% 1/4W R62 RES MF 22.1 OHM 1% 1/4W R63 RES MF 47.5 OHM 1% 1/4W R64 RES MF 47.5 OHM 1% 1/4W R65 RES MF 47.5 OHM 1% 1/4W R66 RES MF 47.5 OHM 1% 1/4W R67 RES MF 47.5 OHM 1% 1/4W R68 RES NETWORK 9 X 47K BUS R69 RES MF 22.1 OHM 1% 1/4W R70 RES MF 47.5 OHM 1% 1/4W R71 RES MF 22.1 OHM 1% 1/4W R72 RES MF 332 OHM 1% 1/4W R73 RES MF 10K 1% 1/4W R74 RES MF 2K 1% 1/4W R75 RES MF 47.5 OHM 1% 1/4W R76 RES MF 47.5 OHM 1% 1/4W R77 RES MF 10K 1% 1/4W R78 RES MF 150 OHM 1% 1/4W R79 RES MF 2.67K 1% 1/4W R80 RES MF 150 OHM 1% 1/4W R81 RES MF 2.67K 1% 1/4W R82 RES MF 150 OHM 1% 1/4W R83 RES MF 2.67K 1% 1/4W R84 RES MF 150 OHM 1% 1/4W R85 RES MF 2.67K 1% 1/4W R86 RES MF 365 OHM 1% 1/4W R87 RES MF 365 OHM 1% 1/4W R88 RES MF 365 OHM 1% 1/4W R89 RES MF 365 OHM 1% 1/4W R90 RES MF 11K 1% 1/4W R91 RES MF 365 OHM 1% 1/4W

Part No. 144549 144549 144539 144646 144528 144526 144608 144526 144504 144656 144656 144567 144513 144604 144520 144526 144526 144513 144564 144564 144622 144539 144642 144642 144642 144554 144554 144554 144554 144526 144554 144642 144642 144642 144642 144642 144673 144554 144642 144554 144646 144504 144517 144642 144642 144504 144535 144534 144535 144534 144535 144534 144535 144534 144505 144505 144505 144505 144523 144505

33

Ref No. Description

Part No.

R92 R93 R94 R95 R96 R97 R98 R99 R100 R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R129 R130 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R145 R146 R147 R148 R149 R150 R151 R152 R153 R154

144505 144505 144505 144584 144734 144584 144584 144584 144667 144568 144667 144667 144568 144667 144584 144584 144584 144584 144534 144534 144534 144534 144534 144534 144534 144534 144619 144619 144619 144619 144556 144556 144526 144526 144526 144526 144526 144526 144510 144510 144510 144510 144510 144510 144568 144568 144568 144568 144568 144568 144513 144513 144513 144513 144513 144513 144534 144534 144534 144534 144619 144619 144619

RES MF 365 OHM 1% 1/4W RES MF 365 OHM 1% 1/4W RES MF 365 OHM 1% 1/4W RES MF 2.21K 1% 1/4W RES MF 2.55K 1% 1/4W RES MF 2.21K 1% 1/4W RES MF 2.21K 1% 1/4W RES MF 2.21K 1% 1/4W RES MF 2.94K 1% 1/4W RES MF 100 OHM 1% 1/4W RES MF 2.94K 1% 1/4W RES MF 2.94K 1% 1/4W RES MF 100 OHM 1% 1/4W RES MF 2.94K 1% 1/4W RES MF 2.21K 1% 1/4W RES MF 2.21K 1% 1/4W RES MF 2.21K 1% 1/4W RES MF 2.21K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 1.33K 1% 1/4W RES MF 1.33K 1% 1/4W RES MF 1.33K 1% 1/4W RES MF 1.33K 1% 1/4W RES MF 5.62OHM 1% 1/4W RES MF 5.62OHM 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 499 OHM 1% 1/4W RES MF 499 OHM 1% 1/4W RES MF 499 OHM 1% 1/4W RES MF 499 OHM 1% 1/4W RES MF 499 OHM 1% 1/4W RES MF 499 OHM 1% 1/4W RES MF 100 OHM 1% 1/4W RES MF 100 OHM 1% 1/4W RES MF 100 OHM 1% 1/4W RES MF 100 OHM 1% 1/4W RES MF 100 OHM 1% 1/4W RES MF 100 OHM 1% 1/4W RES MF 1K 1% 1/4W RES MF 1K 1% 1/4W RES MF 1K 1% 1/4W RES MF 1K 1% 1/4W RES MF 1K 1% 1/4W RES MF 1K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 2.67K 1% 1/4W RES MF 1.33K 1% 1/4W RES MF 1.33K 1% 1/4W RES MF 1.33K 1% 1/4W


PARTS LIST con’t MAIN PCB 750771 (cont’d) Ref No. Description R155 RES MF 1.33K 1% 1/4W R156 RES MF 100K 1% 1/4W R157 RES MF 100K 1% 1/4W R158 RES MF 10K 1% 1/4W R159 RES MF 10K 1% 1/4W R160 RES MF 10K 1% 1/4W R161 RES MF 10K 1% 1/4W R162 RES MF 10K 1% 1/4W R163 RES MF 10K 1% 1/4W R164 RES MF 47.5K 1% 1/4W R165 RES MF 47.5K 1% 1/4W R166 RES MF 47.5K 1% 1/4W R167 RES MF 47.5K 1% 1/4W R168 RES MF 47.5K 1% 1/4W R169 RES MF 47.5K 1% 1/4W R170 RES MF 499 OHM 1% 1/4W R171 RES MF 499 OHM 1% 1/4W R172 RES MF 499 OHM 1% 1/4W R173 RES MF 499 OHM 1% 1/4W R174 RES MF 499 OHM 1% 1/4W R175 RES MF 499 OHM 1% 1/4W R176 RES MF 100 OHM 1% 1/4W R177 RES MF 100 OHM 1% 1/4W R178 RES MF 100 OHM 1% 1/4W R179 RES MF 100 OHM 1% 1/4W R180 RES MF 100 OHM 1% 1/4W R181 RES MF 100 OHM 1% 1/4W R182 RES MF 1K 1% 1/4W R183 RES MF 1K 1% 1/4W R184 RES MF 1K 1% 1/4W R185 RES MF 1K 1% 1/4W R186 RES MF 1K 1% 1/4W R187 RES MF 1K 1% 1/4W R188 RES MF 2.55K 1% 1/4W R189 RES MF 2.55K 1% 1/4W R190 RES MF 100K 1% 1/4W R191 RES MF 22.1K 1% 1/4W R192 RES MF 100K 1% 1/4W R193 RES MF 22.1K 1% 1/4W R194 RES MF 10 OHM 1% 1/4W R195 RES MF 10 OHM 1% 1/4W R196 RES MF 10 OHM 1% 1/4W R197 RES MF 10 OHM 1% 1/4W R198 RES MF 4.75K 1% 1/4W R199 RES MF 4.75K 1% 1/4W R200 RES MF 4.75K 1% 1/4W R201 RES MF 4.75K 1% 1/4W R202 RES MF 10 OHM 1% 1/4W R203 RES MF 10 OHM 1% 1/4W R204 RES MF 10 OHM 1% 1/4W R205 RES MF 10 OHM 1% 1/4W R206 RES MF 100 OHM 1% 1/4W R207 RES MF 100 OHM 1% 1/4W R208 RES MF 4.75K 1% 1/4W R210 RES MF 100K 1% 1/4W T1 TRANSFORMER DIGITAL INTERFACE U1 IC QUAD AND GATE U2 PROGRAMMED VERSION OF 133495 (U2) IC SOCKET 28 PIN PLCC U3 SINGLE 2-INPUT NOR GATE

Ref No. U4 U5 U6 U7 U8 U9 U10 U11 U12 U13 U14 U15 U16 U17 U18 U19 U20 U21 U22 U23 U24 U25 U26 U27 U28 U29 U30 U31 Y1 Y2

Part No. 144619 144528 144528 144504 144504 144504 144504 144504 144504 144526 144526 144526 144526 144526 144526 144510 144510 144510 144510 144510 144510 144568 144568 144568 144568 144568 144568 144513 144513 144513 144513 144513 144513 144734 144734 144528 144564 144528 144564 144553 144553 144553 144553 144520 144520 144520 144520 144553 144553 144553 144553 144568 144568 144520 144528 159351 133372 133706 178186 133500

4

34

Description SINGLE 2-INPUT NAND GATE SINGLE 2-INPUT AND GATE SINGLE 2-INPUT AND GATE SINGLE 2-INPUT OR GATE SINGLE 2-INPUT AND GATE IC TIMER IC QUAD AND GATE IC MONOSTB MULTIVIB X 2 SINGLE 2-INPUT AND GATE IC 3.3V LOW DROP REGULATOR IC PROGRAMMABLE LOGIC DEVICE DSD1792DB IC SPST QUAD FET SWITCHES NO IC OP AMP DUAL FET INPUT IC OP AMP DUAL FET INPUT IC DUAL OPERATIONAL AMPLIFIER IC DUAL OPERATIONAL AMPLIFIER IC DUAL OPERATIONAL AMPLIFIER IC DUAL OPERATIONAL AMPLIFIER IC DUAL OPERATIONAL AMPLIFIER IC DUAL OPERATIONAL AMPLIFIER CONTROL VOLUME STEREO IC DUAL OPERATIONAL AMPLIFIER IC DUAL OPERATIONAL AMPLIFIER IC DUAL OPERATIONAL AMPLIFIER IC OPERATIONAL AMP LOW NOISE IC OPERATIONAL AMP LOW NOISE COUPLER OPTICAL SCHMITT OUTPUT RESONATOR CERAMIC 6.0MHZ W/CAP CRYSTAL OSCILLATOR 33.8688MHZ

DISPLAY PCB 750773 C1 CAP ELECT 47UF 16V C2 CAP MONO .1UF 50V 20% Z5U C3 CAP MONO .1UF 50V 20% Z5U C4 CAP MONO .1UF 50V 20% Z5U C5 CAP MONO .1UF 50V 20% Z5U C6 CAP MONO .1UF 50V 20% Z5U C7 CAP ELECT 47UF 16V C8 CAP ELECT 47UF 16V C9 CAP ELECT 47UF 16V C10 CAP ELECT 47UF 16V C11 CAP ELECT 10UF 50V LOW ESR C12 CAP MONO .1UF 50V 20% C14 CAP MONO 100PF 100V 10% NPO C15 CAP MONO .01UF 50V 20% C16 CAP MONO 100PF 100V 10% NPO C17 CAP MONO .01UF 50V 20% C18 CAP MONO 100PF 100V 10% NPO C19 CAP MONO .01UF 50V 20% C20 CAP MONO .01UF 50V 20% C21 CAP MONO .01UF 50V 20% C22 CAP MONO .01UF 50V 20% C23 CAP MONO .01UF 50V 20% C24 CAP MONO .01UF 50V 20% C25 CAP MONO .1UF 50V 20% C26 CAP MONO 39PF 5% 200V C27 CAP ELECT 10UF 16V C28 CAP MONO 100PF 100V 10% NPO C29 CAP MONO 100PF 100V 10% NPO C30 CAP MONO 100PF 100V 10% NPO C31 CAP MONO .1UF 50V 20% C32 CAP ELECT 47UF 16V C33 CAP MONO .1UF 50V 20%

Part No. 133501 133552 133552 133516 133552 133612 133372 133593 133502 133464 310370 133441 133580 133432 133432 133578 133578 133578 133578 133578 133578 133638 133578 133578 133578 133565 133565 131030 180072 180083 066380 061346 061346 061346 061346 061346 066380 066380 066380 066380 066437 061346 061341 061345 061341 061345 061341 061345 061345 061345 061345 061345 061345 061346 061363 066580 061341 061341 061341 061346 066380 061346


MCD301

PARTS LIST con’t 5

DISPLAY PCB 750773 (cont’d) Ref No. Description DS1 LED GREEN 5MM HI-INT (DS1) SPACER LED DS2 LED GREEN 5MM HI-INT (DS2) SPACER LED DS3 FL TUBE 8BT258GINK DS4 DISPLAY 4 DIGITS DOT MATRIX VFD DS5 LED RED 5MM ROUND (DS5) LED SPACER .220 LENGTH DS6 LED RED 5MM ROUND (DS6) LED SPACER .220 LENGTH FN1 FILTER EMI J1 7 PIN SHROUDED HEADER J2 CONN 13 PIN FFC J3 CONNECTOR FFC 8 PIN J4 CONN FFC 18PIN L1 BEADS FERRITE LEADED L2 CHOKE 18UH 5%-10% L3 BEADS FERRITE LEADED TAPE FOAM 3/16 THK 1 X 1/2 BLK BUMPER DOT 1/2 DIA X 1/2 THK MT1 SENSOR IR 38KHZ PCB1 PC BD DISPLAY Q1 TRANSISTOR NPN SILICON Q2 TRANSISTOR NPN SILICON Q3 TRANSISTOR NPN SILICON R1 RES MF 150 OHM 1% 1/4W R2 RES MF 100 OHM 1% 1/4W R3 RES MF 150 OHM 1% 1/4W R4 RES MF 100 OHM 1% 1/4W R5 RES MF 1K 1% 1/4W R6 RES MF 1K 1% 1/4W R7 RES NETWORK 5X47K BUSSED R8 RES MF 10 OHM 1% 1/4W R9 RES MF 10 OHM 1% 1/4W R10 RES NETWORK 4 X 100 ISO R11 RES NET 10K X8 RES B R12 RES MF 47.5K 1% 1/4W R13 RES MF 2.87K 1% 1/4W R14 RES MF 3.32K 1% 1/4W R15 RES MF 4.75K 1% 1/4W R16 RES MF 10 OHM 1% 1/4W R17 RES NETWORK 4 X 100 ISO R18 RES MF 47.5K 1% 1/4W R19 RES NETWORK 5X47K BUSSED R20 RES MF 8.25K 1% 1/4W R21 RES MF 8.25K 1% 1/4W R22 RES MF 8.25K 1% 1/4W R23 RES MF 8.25K 1% 1/4W R24 RES MF 8.25K 1% 1/4W R25 RES MF 8.25K 1% 1/4W S1 SWITCH PB TACT S2 SWITCH PB TACT S3 SWITCH PB TACT S4 SWITCH PB TACT S5 SWITCH PB TACT S6 SWITCH PB TACT S7 SWITCH PB TACT S8 SWITCH PB TACT S9 SWITCH PB TACT U1 DECIMAL TO BCD ENCODER

Part No. 058165 112108 058165 112108 310369 058188 058187 163001 058187 163001 180057 117910 117919 117915 117908 076023 122394 076023 094509 094510 121046 129869 132317 132317 132317 144535 144568 144535 144568 144513 144513 144499 144553 144553 144676 144675 144526 144546 144518 144520 144553 144676 144526 144499 144549 144549 144549 144549 144549 144549 150058 150058 150058 150058 150058 150058 150058 150058 150058 133454

6

35

Ref No. Description

Part No.

CONTROL PCB 750295 C2 CAP MONO .1UF 50V 20% Z5U C3 CAP MONO .1UF 50V 20% Z5U C4 CAP MONO .1UF 50V 20% Z5U DS1 LED GRN 5MM HI-INTENSITY (DS1) SPACER LED DS2 LED GRN 5MM HI-INTENSITY (DS2) SPACER LED DS3 LED GRN 5MM HI-INTENSITY (DS3) SPACER LED J1 CONN 8 PIN FFC PCB1 PC BD CONTROL R1 RES MF 100 OHM 1% 1/4W R2 RES MF 100 OHM 1% 1/4W R4 RES MF 100 OHM 1% 1/4W S2 SWITCH ROT ENCODER NO DETENT S1 ENCODER 11MM SELF-RETURN TYPE

061346 061346 061346 058165 112108 058165 112108 058165 112108 117915 129716 144568 144568 144568 146256 146257

POWER PCB 750772 C1 CAP ELECT 470UF 16V C2 CAP MONO .1UF 50V 20% Z5U C3 CAP ELECT 22000UF 16V C4 CAP MPF 0.033UF 100V 10% C5 CAP ELECT 100UF 25V C6 CAP ELECT 47UF 35V C7 CAP MONO .1UF 50V 20% Z5U C8 CAP ELECT 47UF 35V C9 CAP ELECT 3300UF 35V C10 CAP MPF 0.033UF 100V 10% C11 CAP ELECT 220UF 50V 20% C12 CAP ELECT 220UF 50V 20% C13 CAP MPF 0.033UF 100V 10% C14 CAP MONO .1UF 50V 20% Z5U C15 CAP ELECT 22000UF 16V C16 CAP ELECT 3300UF 35V C17 CAP ELECT 3300UF 35V C18 CAP ELECT 3300UF 35V C19 CAP MONO .1UF 50V 20% Z5U C20 CAP MONO .1UF 50V 20% Z5U C21 CAP MONO .1UF 50V 20% Z5U C22 CAP MONO .1UF 50V 20% Z5U C23 CAP MONO .1UF 50V 20% Z5U C24 CAP ELECT 470UF 16V C25 CAP ELECT 470UF 16V C26 CAP ELECT 470UF 16V C27 CAP ELECT 220UF 25V C28 CAP ELECT 220UF 25V D1 DIODE ZENER 2.4V D2 DIODE SILICON D3 DIODE SIL 400 PIV @ 1.5A D4 DIODE SIL 400 PIV @ 1.5A D5 DIODE SIL 400 PIV @ 1.5A D6 DIODE SIL 400 PIV @ 1.5A D7 DIODE ZENER 33V 5% 1/2W D8 DIODE SIL 400 PIV @ 1.5A D9 DIODE SIL 400 PIV @ 1.5A D10 DIODE SILICON D11 DIODE SIL 400 PIV @ 1.5A D12 DIODE SIL 400 PIV @ 1.5A D13 DIODE SIL 400 PIV @ 1.5A D14 DIODE SIL 400 PIV @ 1.5A D15 DIODE SIL 400 PIV @ 1.5A

066508 061346 066579 064427 066573 066446 061346 066446 066509 064427 066254 066254 064427 061346 066579 066509 066509 066509 061346 061346 061346 061346 061346 066508 066508 066508 066507 066507 070195 070174 070031 070031 070031 070031 070182 070031 070031 070174 070031 070031 070031 070031 070031


PARTS LIST con’t POWER PCB 750772 (cont’d) Ref No. Description D16 DIODE SIL 400 PIV @ 1.5A D17 SCHOTTKY RECTIFIER 5A 100V D18 SCHOTTKY RECTIFIER 5A 100V D19 SCHOTTKY RECTIFIER 5A 100V D20 SCHOTTKY RECTIFIER 5A 100V D21 DIODE SIL 400 PIV @ 1.5A F1 FUSE 2A 250V SLO-BLO 5X20 IEC (F1) HOLDER FUSE 5X20MM PCB MOUNT F2 FUSE 2A 250V SLO-BLO 5X20 IEC (F2) HOLDER FUSE 5X20MM PCB MOUNT F3 FUSE 1A 250V SB 5X20 ULCSA IEC (F3) HOLDER FUSE 5X20MM PCB MOUNT F4 FUSE 1A 250V SB 5X20 ULCSA IEC (F4) HOLDER FUSE 5X20MM PCB MOUNT FN1 FILTER EMI HS1 HEATSINK TO-218 HS2 HEATSINK TO220 HS3 HEATSINK TO-220 HS4 HEATSINK TO-218 HS5 HEATSINK TO220 HS6 HEATSINK TO220 HS7 HEATSINK TO220 J1 7 PIN SHROUDED HEADER J2 HEADER 9 CIRCUIT POST NATURAL J3 10 PIN SHROUDED HEADER 2MM J4 CONN FFC 18PIN K1 RELAY POWER TV5 12V K2 RELAY DPST 12VDC K3 RELAY DPST 12VDC WASHER SHLDR #10 BLK NYLN INS PCB1 PC BD POWER Q1 TRANSISTOR NPN SILICON Q2 TRANSISTOR NPN SILICON Q3 TRANSISTOR PNP R1 FUSE RESETTABLE 900mA R2 RES MF 1.82K 1% 1/4W R3 RES MF 1.82K 1% 1/4W R4 RES MF 22.1 OHM 1% 1/4W R5 RES MF 10K 1% 1/4W R6 RES MF 10K 1% 1/4W R7 RES MO 56.2 1% 1W

Ref No. R8 R9 R10 R11 R12 U1 (U1) (U1) U2 (U2) (U2) U3 (U3) (U3) U4 (U4) U5 (U5) (U5) U6 (U6) (U6) U7 (U7) (U7) (U7)

Part No. 070031 070171 070171 070171 070171 070031 089123 178159 089123 178159 089132 178159 089132 178159 180057 080020 080021 080024 080020 080021 080021 080021 117910 117724 117973 117908 087070 087059 087059 104101 129868 132317 132317 132263 144733 144582 144582 144554 144504 144504 144695

7

8

36

Description RES MF 10K 1% 1/4W RES MF 249 OHM 1% 1/4W RES MF 249 OHM 1% 1/4W RES MF 10K 1% 1/4W RES MF 1.21K 1% 1/4W IC REGULATOR 1.8V SCR MS 4-40 X 3/8 PH PN BLK INSULATOR ISOSTRATE TO 220 IC REGULATOR 5V SCR MS 4-40 X 1/4 PH PN BLK NUT KEP 4-40 CLR IC REGULATOR 3.3V 1.5A SCR MS 4-40 X 1/4 PH PN BLK NUT KEP 4-40 CLR IC REGULATOR 5V 1.5A LOW DROP SCR MS 4-40 X 1/4 PH PN BLK IC 12V REGULATOR LOW DROP SCR MS 4-40 X 1/4 PH PN BLK NUT KEP 4-40 CLR IC REGULATOR 12V SCR MS 4-40 X 1/4 PH PN BLK NUT KEP 4-40 CLR IC REGULATOR -12V INSULATOR ISOSTRATE TO 220 SCR MS 4-40 X 1/4 PH PN BLK NUT KEP 4-40 CLR

Part No. 144504 144721 144721 144504 144566 133673 400178 084133 133597 400121 402001 133674 400121 402001 133610 400121 133611 400121 402001 133590 400121 402001 133574 084133 400121 402001

PRIMARY PCB 750614 (F1) HOLDER FUSE 5X20MM PCB MOUNT J1 CONN PCB MOUNT POWER RED J2 CONN PCB MOUNT POWER RED J3 CONN PCB MOUNT POWER RED J4 CONN PCB MOUNT POWER RED J5 BLADE FASTON W/FEET J6 BLADE FASTON W/FEET PC BD PRIMARY

178159 117719 117719 117719 117719 117708 117708 129803

HEADPHONE PCB 750296 C1 CAP MONO .1UF 50V 20% Z5U J1 HEADPHONE JACK 1/4 J2 CONN 4 PIN PC BD HEADPHONE

061346 117881 117215 129717


MCD301

REPACKING INSTRUCTIONS

In the event it is necessary to repack the equipment for shipment, the equipment must be packed exactly as shown below. It is very important that the four plastic feet are attached to the bottom of the equipment. This will ensure the proper equipment location on the bottom pad. Failure to do this will result in shipping damage. Use the original shipping carton and interior parts only if they are all in good serviceable condition. If a shipping carton or any of the interior part(s) are needed, please call or write Customer Service Department of McIntosh Laboratory. Refer to page 4. Please see the Part List for the correct part numbers.

37

uantity Q 1 4 1 1 1 4 4 4

Part Number 033838 033837 033836 033725 034301 017937 400159 404080

Description Shipping carton only End cap Inside carton only Top pad Bottom pad Plastic foot #10-32 x 3/4� screw #10-7/16� Flat washer


MCD301 SACD / CD PLAYER SERVICE MANUAL SERIAL NO. YM1001 And Above

The continuous improvement of its products is the policy of McIntosh Laboratory Incorporated, who reserve the right to improve design without notice. Because of the constant upgrading of McIntosh products’ circuitry and components, the Company cannot insure, and does not warrant, the accuracy of the within schematic material, which is intended for information only. McINTOSH LABORATORY, INC.,

2 CHAMBERS STREET,

BINGHAMTON, NEW YORK 13903

Printed in U.S.A.

Part Number 041101


McIntosh MCD 301 service manual