Onkyo SEU-55 Service manual

SERVICE MANUAL

5

USB Digital Audio Processor

SE-U5

SE-U55

Ref.No.3692

May 2001

F

E

INT

ONITOR

M

GIT

I

D

USB

UNCTION

L

A

RN

L

A

INPU

P

HO

PH

D

I

GIT

PROCESSOR

S

E

UP

CTOR

E

L

SE

E

IN

L

MIC

T

LEVEL

MAX

N

E

L

E

V

E

L

MAX

M

IC

O

N

E

S

A

L

A

U

D

IO

-U

5

5

SE-U55

Main specifications

Type USB digital audio processor
Connection method USB (Universal Serial Bus Ver. 1.1)
Sampling rate

Digital input 32/44.1/48 kHz compatible

Digital output 44.1 kHz
Frequency characteristics 0.3 Hz to 20 kHz (+0/-0.5 dB, LINE OUT)
Signal-to-noise ratio 100 dB (A-filter)
Total harmonic distortion 0.002% (1 kHz, 0 dB)
Output level 1.0 Vrms
Line input level 250 mVrms
Microphone input se4nsitivity 5.0 mVrms
Power supply USB power supply, separately sold DC 7.5 V (exclusive adapter)
Current dissipation 400 mA
External dimensions 50 x 216 x 166 mm / 1 15/16" x 8 1/2" x 6 9/16"
Weight 0.7 kg / 1.5 lbs.

Specifications and external appearance are subject to change without notice.

Accessories

The SE-U55 comes supplied with the accessories shown below. Make sure that these
accessories are present at the time of purchase. The number in parenthesis is the quantity
of that accessory.

❒ This instruction manual (1)

SE-U55

Instruction Manual

USB Digital Audio Processor

Thank you for purchasing the Onkyo USB Digital

Audio Processor.
Be sure to read this instruction manual thoroughly
before operating the unit and always adhere to the
instructions given within during operation. Also,
keep this instruction in a safe place for future
reference.

P

U

R
O
T

C

E
L
E

S

N
IO
T

C
N

FU

E
N

I
L

L
A
N

R
E

T
N
I

M

I

C

R
O

T

I
N

O
M

L

A

IT

IG

D

I

N

P
U

T

L
E

V

E

L

-

+

PHONE LEVEL

M

IN

MIC

PHO

NES

Explains operational procedures and the required settings for
connecting the SE-U55 to your computer.

❒ CarryOn Music instruction manual (1)

Instruction manual for using the supplied software CarryOn
Music.

❒ CD-ROM (1)

Contains the software for using the SE-U55 with a computer
and an on-line instruction manual.

❒ SE-U55 (1)

The USB digital audio processor. The SE-U55 converts your
computer’s sounds to professional-level high-quality audio
sound.

U
S

B

D
I

G

I
T

A

P

L
R
O

A
U

C

D

E

I

S

O

S

O

R

S

E

-U
5

5

❒ Audio pin-cord (1)

For the analog connection of the SE-U55 to external analog
audio devices.

❒ USB cable (1)

For the connection of the SE-U55 to your computer.

❒ Registration Card (1)

❒ Quick Setup guide (1)

Note:
The power supply for the SE-U55 is supplied through the USB cable from the connected computer.

CHASSIS-EXPLODED VIEW

19

U1

SE-U55

6

4

2

3

1

7

5

15

Q

7

5

1

7

19

7

20

9

17

19

10

21

12

18

16

8

7

13

11

14

7

CHASSIS-EXPLODED VIEW PARTS LIST

REF NUMBER DESCRIPTION PART NUMBER

U1 PC BOARD AS, NAAR-7035-1C 1W223535-1C
1 CHASSIS 27100392
2 3TTB+8B(BC), SCREW 838430088
3 3P+10FN(BC), SCREW 82143010
4 SPACER M506RS 27270262
5 CASE, (L) 29105203
6 CASE, (R) 29105204
7 3TTB+8B(UN), SCREW 838930088
8 FRONT PANEL 27212266A
9 FACET, (SEL) 28198920
10 GUIDE, (VR) 27268034
11 END CAP, (L) 28125392
12 END CAP, (R) 28125394
13 KNOB, (SEL) 28325885
14 KNOB, (MIC) 28325884
15 LABEL, SPEC 29362847
16 STANDING AS 28163066
17 CUSHION, (DAC) 28141443
18 3SMS8W.SW+14B(BC), SCREW 801433
19 3TTB+8B, SCREW 838130088
20 SHLD PLT (U) 27150468
21 SHLD PLT (D) AS 27150467

SE-U55

SCHEMATIC DIAGRAM (INPUT SELECTOR : INTERNAL)

V

R

R

SE-U55

DC IN

INPUT

COAXIAL

OUTPUT

OPTICAL

OUTPUT

TORX178A

OPTICAL

INPUT

P901

7.5V

1.5A

TOTX178

L501-503

C501,503,505,507

C502,504,506,508

C509

C510

C511

C512

R502-504

P401

U402

U401

BLM21P221SG

104Z

NC

NO USE

L901

R912

C913

R407 75

C504

C508

C414

L401

NCH-1479

47UH

C415

C530

101J

E903

101JC530

UJJ UDD

0

C509

C510

C511

C512

C503

R502

R503

C507

104Z

104Z

UJJ UDD

0

ICP-S2.3

BLM21B221SB

BLM21B221SB

BLM21B221SB

L502

C502

L503

C506

1K

C401

47/16

C901 10/16

EM1/C813

EM0/C914

CBL/SBC15

RST16

17

TXN

19

VD+

TXP20

M021

M122

M223

24

TRNPT/FC1

DI2C 60

Q901

SI-3050F

G

INOVC VOS

1

1K

10K

R901

R902

C9/C15

12

U11

C/SBF 10

V9

SDATA 8

FSYNC 7GND18

Q402

SCK 6

MCK 5

C6/C2 4

C1/FC0

3

CS8404A

2

PRO

C7/C3

1

FOD55FOW 54

FOC 56

DI2D 57

DI2W 59

VSSD11 58

D903

R914

F901

101J

101J

101J

101J

102J

102J

102J

102J

331J

102J

223Z

473Z

0

0

0

ohm

C501

C505

0.1/50

1

C910

0.47/50

R408

NSRF-2046

0.22

SFPJ63

(1W)

UJJ UDD

R504

L501

75

L402

C413

472K

22/16

C417

104Z

64

VSSD13

DI1D 62

DI1O 63

VSSA12

VDDA13

AIL4

AIR5CL47

VSSD12 61

R501

C410

DI1S

C412

1

VSSD10 53

D902

52

VDDD6

DO1C

DO1D 50

DO1W

LOCK 48

D901

SFPJ63

51

49

SFPJ63

128FS

DIT_C3

CLK

C903

DIT_C2

SRC_DA

SRC_LD

SI-3033LUS

470/6.3

+5D

DIT_C15

SRC_RST

Q902

I

O

G

R409

R411 680

R410

330

R911

SLR-332MC

D904

680

680

R913

101J

C534

101J

C535

C200

C765

104Z

101J

C536

4

102J

13

5

R201

4.7K

101J

C537

MODEL NO

D200

12

1SS352

11

R202

R203

2.2K

6

2.2K
9

D201

1SS352

C201

102J

C534-540

101J

544-546

BK1608LL241-T

R511-519

ohm

0

0

0

0

0

0

0

0

0

R714 100

(UDD= )

R511

R512

R513

R514

R515

R516

R517

R518

L751

C751

BLM21A102F

104Z

C539

C752

101J

104Z

C540

L752

101J

BLM21A102F

R519

333K

C766

C767 103K

C768 472K

Q903

SI-3033LUS

O

I

G

330

22K

R903

NC1

D406

R904

10K

UDZ3.3B

BCKO

WSO

1

IN

2

3

NC2

DO

1.5K

R412

R907 0

2.2K

R402

Q905

RN1402

1.5K

R413

2.2K

R403

DI

BCKI

WSI

R414 1.5K

D404

D405

D403

D402

D401

1SS352

R404 2.2K

C904

104Z

Q904

NC3 8

VCC 7

OUT 6

M51957B

CAP 5GND4

DO

BCKO

+3.3D

C543

105M

UP_LED

RESET

WAV/DIR

R905

RESET

C905

Q357

UJJ UDD

74HC04

14

2

3

1

7

R200

Q753

VCC 16

YCOM 15

XCOM 14

1X 13

0X 12

A11

74HC4053

B10

C9GND8

10K

+3.3A

GND

+5A

1Y1

0Y2

1Z3

ZCOM

4

0Z5

INH6

VEE7

10K

C543

C905

1/50

SE-U55/UE-155

2SA1162-Y

Q200

1K

C202

102J

R204

10

R205

8

R206

R207

0

14

16

18

19

3

TC7WU04

1K

Q201

1K

1K

2SC2712-Y

UDDUJJ

1

GP3/WSO

2

GP4/BCKO

P0.53

SHTCB4

5

P0.6

D-6

7

P0.7

D+8

VDDI9

VSSI10

VSSE11

VDDE12

GP1/DI13

P2.0

GP5/WSI15

P2.1

GP0/BCKI17

P2.2

SCL

Q754

C203

10/50

C204

10/50

64

62

P0.4

P0.3

GP2/DO 63

SDA21

P2.4

P2.3

20

22

1

5

R751

X751

C753

050C

C754

BCK 61

P2.5

23

1M

48M

D203

1SS352

D202

60

WS 59

P0.2

UDA1325

DAC

VSSX24

XTAL1B25

BLM21A102F

Q754
TC7WU04

8

7

4

R753 0

1SS352

Q751

L753

D204

58

P0.1

XTAL2B26

C755

103K

1SS352

D205

1SS352

C205

DA 57

CLK27

C756 104Z

6

L754

NCH-1470

10/50

C764

180J

P0.0 56

VDDX

28

Q754

TC7WU04

VSSA3 55

P2.629P2.730

C538 101J

C206

XTAL1A 54

100/16

C546

2

101JC763

53

XTAL2A

V

V

PSEN31

R714

SCHEMATIC DIAGRAM (INPUT SELECTOR : INTERNAL)

2

0

6

2.

R404 2.2R403 2.2R402

+5D

USB UP

F801

ICP-S1.0

P801

1

+V

D- 2

D+ 3

4

GND

4BLH-CUM05R5CN1

C402

C418

R908

0.33 (1W)

L801

BLM21P221SG

R847 0

L807

R846 0

L802

47/16

104Z

C409
104Z

C419
103K

C401

223K

R401

L807

R801

R802 15

UDZ5.6B

4.7

D802

10

15

16

19

1

DI1S

5

6

VDDA4

VSSA12

VDDA13

AIL4

AIR

DO2C

VDDD17

VSSD18

AOL19

DO2D

VDDD211

VSSD212

VSSD313

VDDD314

AOR1

DO2W

VSSD417

CLD18

15

64

VSSD13

DI1D 62

DI1O 63

XTLI21

XTLO

VSSA4

20

22

R405

1M

560

X401

R415

33.8688MHZ

C405

080D

0ohmR846,847

4BLH-CUN05R5BN1

UDZ5.6B

VSSD12 61

CLI23

D801

DI2C 60

DI2W 59

TDA1373H

VSSD524

FSL25

VSSD11 58

Q401

VSSD626

C406

UJJ UDD

104Z

FOC 56

DI2D 57

CLO127CLO2

28

080D

C912

FOD55FOW

VSSD729

C911

104Z

52

54

51

VDDD6

DO1C

VSSD10 53

DO1D 50

49

DO1W

48

LOCK

CL

47

DA 46

LD 45

MU 44

SA 43

TST1 42

TST2 41

VSSD9 40

VDDD5 39

RST 38

37

EM

CUS 36

CEN 35

BS

34

VSSD8

33

CLO330

CLO4

VDDD4

32

31

104Z

C403

C404

104Z

C420

220/6.3

R838

R837

SE-U55

3

I2C_SCL

1SS352

D710

Q754

TC7WU04

5

R751

1M

X751

48M

C753

050C

C754

050C

I2C_SDA

101J

C536

+3.3D

C537 101J

C7

C767 1

C768 472K

D1+

D1-

CDCD+

101J

C535

C534 101J

+3.3D

R819

1.5K

0

0

6

C755

103K

L754

Q754

TC7WU04

NCH-1470

+5D

2

4

R753 0

NOTE

.

THE COMPONENTS

REPLACE ONLY

.

VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL)

.

ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.

.

ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.

.

ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.

.

ELECTROLYTIC CAPACITORS ()ARE IN F/WV.

.

ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.

EX) 030 3pF 330 33pF 331 330pF

.

ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.

.

THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.

EX) PRINTING SIDE

.

CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

IDENTIFIED

WITH PART

NUMBER SPECIFIED.

BY MARK

333 0.033uF

ARE CRITICAL FOR

u

INPUT SELECTOR : INTERNAL

NCAR-7035

SAFETY

SCHEMATIC DIAGRAM (INPUT SELECTOR : INTERNAL)

P0

260

VSSX24

SE-U55

E-155

D204

1SS352

D205

D203

1SS352

1SS352

D202

C205

10/50

1SS352

C764

180J

58

.

WS 59

P0.1

P0.0 56

VSSA3 55

Q751

UDA1325

DAC

VDDX

P2.629

XTAL2B

XTAL1B25

CLK27 DA 57

28

26

BLM21A102F

L753

Q754
TC7WU04

7

R753 0

C755

103K

L754

C756 104Z

6

Q754
TC7WU04

NCH-1470

SCHEMATIC DIAGRAM

-5V

D206

C206

100/16

UDZ5.6B

+3.3A

+3.3D

C544

101J

C545

101J

C546

101JC763

180J

C762

104Z

XTAL1A 54

VREF[AD] 41

VREF[DA] 40

P2.730

C538 101J

2

52

53

VDDA3

XTAL2A

ALE 50

VRN 49

VINR 47

NC2

NC1 45

VSSA2 44

VINL 43

VDDA2 42

VSSA1 39

VDDA1 38

VOUTR 37

RTCB 36

VOUTL 34

VSSO

PSEN31

VDDO

R714

EA 48

TC 35

32

VRP

C761

51

46

33

220/6.3

R752

10K

C760 10/16

D751

CDCRST

C757

10/16

C759

10/16

1SS352

10/16

47/16

C758

47/16

47/16

47/16

C332

C331

C362

C361

100K

R366

100K

R316

R314

R364

R351

R352

(NO USE)

+5A

R393

33

-5V

R347 100K

100K

100K

C365

47/16

R397

R343

50K (A)

C315

47/16

R313

100K

L351-353,355,356,506,516

C523, 527,525,

R319

2.2K

152J

152J

R369

2.2K

33

(1/2)

(A)

C358 220/6.3

R313 50K

(2/2)

528,526,C524,

R320

10K

C316

R370

C366

10K

NJM2140R

547, 553,551,

548, 554,552,

355,317,312,R311,

3

2

6

5

510,356,

8

Q352

(1/2)

NJM2140R

Q352

(2/2)

4

R371

4.7K

7

555

556

520

C318

152J

R321

4.7K

C368

152J

1Y1

0Y2

1Z3

ZCOM4

0Z5

INH6

VEE

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

102J

102J

102J

102J

102J

102J

102J

101J

101J

101J

101J

101J

101J

101J

0

0

0

0

0

0

0

1

7

GND

ohm

Q752

VCC 16

YCOM 15

XCOM 14

1X 13

0X 12

74HC4053

(ECHU)

C351

A11

B10

C9GND8

220/16

47/16

C319

47/16

C369

4.7K

R375

47/16

220/6.3

100K

R361

R362 100K

C308

UDDUJJ

Lch

Rch

R325 4.7K

1

R339

R389

7

R336

Q358

1

(2/2)

Q359

22K

22K

(1/2)

Q359

8

22K

3

8

NJM2140R

3

6.8K

2

R338

10K

R388

10K

6

R387

5

6.8K

R318

2.2K

R332

R382

R368

2.2K

0

NJM2140R

Lch

Rch

0

33

33

22K

33K

R365

R386

5

6

4

Q358

(2/2)

7

NJM2140R

C374 101J

+5A

33

R394

82K

R385

82K

R335

NJM2140R

220/16

R315

2

C324 101J

C352

33K

(1/2)

Lch

Rch

-5V
33

R334

R337

4

C304

47/16

C363

100K

R310

C313

GND

47/16

R322

R372

C311 10/16

470

470

R306

1K

R392

1K

C302 100/6.3

NJM4565M-D

Q386

RN1444-A

Q387

RN1444-A

Q388

1

C305
331K

7

L301,302

L504

C513,515

C514,516

R521

R522

R523

Lch

Rch

RN1444-A

Q389
RN1444-A

(1/2)

R308

Q301

33K

Q301

(2/2)

8

4

NJM4565M-D

3

2

680

6

C303

5

BLM21P221SG

BLM21P221SG

4BLH-CUN05R5BN1

102J

102J

101J

101J

0

0

0

0

ohm309, 506505,R303,

U55UJJ 155UJJ U55UDD

R323

470

Q353

RN1444-A

Q354

RN1444-A

R373

470

L381-383

L505

R302

C307

221K

R305

47/16

541

521,519,C517,

529,522,520,C518,

507-509 ohm

384,383,R381,

4.7K

R307

1K

L301

C301

R303

4.7/35

100K

R301 330K

R304

R309

L302

UDDUJJ

R311

L351

R312

L353

R317

L352

L355

R355

R510

R324 330KR374 330K

L506

L516

R520

R356

L356

BLM21P221SG

4BLH-CUM05R5CN1

102J

542

101J

0

C516

C515

C514

C513

C517

C518

C519

C551

C552

C553

C554

C555

C556

C523

C524

C525

C526

C547

C548

C527

C528

R505

L504

R506

R521

R522

R523 0

UDDUJJ

P301

MIC IN

0

0

P302

L(2VrmsFS)

LINE IN

R(2VrmsFS)

P303

L(1VrmsFS)

LINE OUT

R(1VrmsFS)

E902

E901

SCHEMATIC DIAGRAM (INPUT SELECTOR : INTERNAL)

101J

D

542

529,522,520,C518

6

2

Q754
TC7WU04

L754

NCH-1470

R753 0

C755

103K

+5D

C

CDCRST

CDCD+

P_ON_RST

WIN/MAC

CDCD+

PROTECT

P_ON_RST

Q701

MB89135A

MOD1

X701
4MHZ

10K

R708

WIN/MAC

ONK/KORG

I2C_SDA_D

I2C_SCL_D

VccX1X0

Q706 74HCT7007

EPROM_WR

EPROM_WR

Output only

X1A

X0A

5

CLK

10K

10K

10K

R703

R706

PROTECT

ONK/KORG

0

0R702

POWERMODE

R704

R707 0

R743

36

37

C705

3

104Z

Q706

74HCT7007

38

POWER MODE

39

40

OPT/COAX

41

UPLED

42

MCU_MUTE

43

Avss

44

AVR

45

MODE

46

INH

47

Nch Open drain

MIC/LINE

48

AVcc

MOD0

RST

123456789

RESET

C701

104Z

10K

R700

OPT/COAX CDCRST

UP_LED SRC_DA

MCU_MUTE

MODE

R701 2.7K

74HCT7007

INH

1

2

Q706

14

10K

R713

MIC/LINE

4

R705

10K

104Z

C702

CLK
101112

6

10K

R718

I2C_SCL_D

I2C_SDA_D

2526272829303132333435

I2C_SCL_A

I2C_SDA_A

DIG/ANA

CDCRST

DRC_DA

Vss

DIT_C3

DIT_C2

DIT_C15

SRC_RST

SRC_LD

9

8

SRC_LD

Q706

74HCT7007

NC

WAV/DIR

SRC_RST

Q706

INH

MIC/LINE

10K

R717

I2C_SCL_A

24

23

22

21

20

19

D702

18

UDZ3.3B

17

16

15

14

13

11

10

74HCT7007

I2C_SDA_A

R744

7

74HCT7007

DIG/ANA

6.8K

D701

1SS352

13

12

Q706

10K

R716

MCU_MUTE

10K

15K

R715

R746

R745

3.9K

DIT_C2

DIT_C15

WAV/DIR

DIT_C3

Q384

RN1402

SFPJ63

EPROM_WR

P702

(NO USE)

R390

D301

560

470

470

560

R396

R395

R391

Q385

C306

470/6.3

C703

104Z

Q704

BR24C16F

EPROM_WR

Q705

BR24C16F

VCC

WC

M24C16M24C16

SDA 5

VCC

WC

SDA 5

8

7

8

7

S01

S12

S23SCL6

GND4

S01

S12

S23SCL6

GND4

RN2401

R326

(2/2)

I2C_SCL_A
I2C_SDA_A

I2C_SCL_D

I2C_SDA_D

50K

(A)

10/16

50K(A)

R326

(1/2)

C371

10/16

R378 39K

I2C_SCL_A

I2C_SCL_D

I2C_SDA_A

I2C_SDA_D

DIG/ANA

C321

R398

39K

R377

8.2K

R754 6.8K

(NO USE)

C359 105M

R730

R348

22/6.3

C310

NO USE

R729

Q711

RN2401

10K

R327 8.2K

39K

R328 39K

I2C_SDA

10K

7

1Y1

0Y2

1Z3

ZCOM4

0Z5

INH6

VEE

C309 105M

I2C_SCL

C360 22/6.3

Q708

3

(1/2)

2

5

Q383

(2/2)

6

VCC 16

YCOM 15

XCOM 14

1X 13

0X 12

A11

74HC4053

B10

C9GND8

8

Q383

NJM3414A

RN1444-A

RN1444-A

4

NJM3414A

,

1

Q381

Q382

7

C322

47/16

C372

47/16

C704

104Z

384,383,R381,

507-509 ohm

0

R329

33

L381

R381

L383

R383
R384

R380 100K R330 100K

L382

R379

33

C706
104Z

MODE

390

470

820

OPT/COAX

R709

R710

R711

C517

C518

C519

C520

C521

C522

C529

C541

C542

WIN/MAC

R507

L505

R508

R509

S701S702

SE-U55

P381

PHONES

E904

WIN/MAC SW

OPT/COAX SW

INPUT SELCTOR

MIC

LINE

S703

INTERNAL

MONITOR

ANALOG

DIGITAL

SCHEMATIC DIAGRAM (INPUT SELECTOR : LINE/MIC)

V

R

R

SE-U55

DC IN

INPUT

COAXIAL

OUTPUT

OPTICAL

OUTPUT

TORX178A

OPTICAL

INPUT

P901

7.5V

1.5A

TOTX178

L501-503

C501,503,505,507

C502,504,506,508

C509

C510

C511

C512

R502-504

P401

U402

U401

BLM21P221SG

104Z

NC

NO USE

L901

R912

C913

R407 75

C504

C508

C414

L401

NCH-1479

47UH

C415

C530

101J

E903

101JC530

UJJ UDD

0

C509

C510

C511

C512

C503

R502

R503

C507

104Z

104Z

UJJ UDD

0

ICP-S2.3

BLM21B221SB

BLM21B221SB

BLM21B221SB

L502

C502

L503

C506

1K

C401

47/16

C901 10/16

EM1/C813

EM0/C914

CBL/SBC15

RST16

17

TXN

19

VD+

TXP20

M021

M122

M223

24

TRNPT/FC1

DI2C 60

Q901

SI-3050F

G

INOVC VOS

1

1K

10K

R901

R902

C9/C15

12

U11

C/SBF 10

V9

SDATA 8

FSYNC 7GND18

Q402

SCK 6

MCK 5

C6/C2 4

C1/FC0

3

CS8404A

2

PRO

C7/C3

1

FOD55FOW 54

FOC 56

DI2D 57

DI2W 59

VSSD11 58

D903

R914

F901

101J

101J

101J

101J

102J

102J

102J

102J

331J

102J

223Z

473Z

0

0

0

ohm

C501

C505

0.1/50

1

C910

0.47/50

R408

75

NSRF-2046

0.22

SFPJ63

(1W)

UJJ UDD

R504

L501

L402

C413

472K

22/16

C417

104Z

64

VSSD13

DI1D 62

DI1O 63

VSSA12

VDDA13

AIL4

AIR5CL47

VSSD12 61

R501

C410

DI1S

C412

1

VSSD10 53

D902

52

VDDD6

DO1C

DO1D 50

DO1W

LOCK 48

D901

SFPJ63

51

49

SFPJ63

128FS

DIT_C3

CLK

C903

DIT_C2

SRC_DA

SRC_LD

SI-3033LUS

470/6.3

+5D

DIT_C15

SRC_RST

Q902

I

O

G

R409

R411 680

R410

330

R911

SLR-332MC

D904

680

680

R913

101J

C534

101J

C535

C200

C765

104Z

101J

C536

4

102J

13

5

R201

4.7K

101J

C537

MODEL NO

D200

12

1SS352

11

R202

R203

2.2K

6

2.2K
9

D201

1SS352

C201

102J

C534-540

101J

544-546

BK1608LL241-T

R511-519

ohm

0

0

0

0

0

0

0

0

0

R714 100

(UDD= )

R511

R512

R513

R514

R515

R516

R517

R518

L751

C751

BLM21A102F

104Z

C539

C752

101J

104Z

C540

L752

101J

BLM21A102F

R519

333K

C766

C767 103K

C768 472K

Q903

SI-3033LUS

O

I

G

330

22K

R903

NC1

D406

R904

10K

UDZ3.3B

BCKO

WSO

1

IN

2

3

NC2

DO

1.5K

R412

R907 0

2.2K

R402

Q905

RN1402

1.5K

R413

2.2K

R403

DI

BCKI

WSI

R414 1.5K

D404

D405

D403

D402

D401

1SS352

R404 2.2K

C904

104Z

Q904

NC3 8

VCC 7

OUT 6

M51957B

CAP 5GND4

DO

BCKO

+3.3D

C543

105M

UP_LED

RESET

WAV/DIR

R905

RESET

C905

Q357

UJJ UDD

74HC04

14

2

3

1

7

R200

Q753

VCC 16

YCOM 15

XCOM 14

1X 13

0X 12

A11

74HC4053

B10

C9GND8

10K

+3.3A

GND

+5A

1Y1

0Y2

1Z3

ZCOM

4

0Z5

INH6

VEE7

10K

C543

C905

1/50

SE-U55/UE-155

2SA1162-Y

Q200

1K

C202

102J

R204

10

R205

8

R206

R207

0

14

16

18

19

3

TC7WU04

1K

Q201

1K

1K

2SC2712-Y

UDDUJJ

1

GP3/WSO

2

GP4/BCKO

P0.53

SHTCB4

5

P0.6

D-6

7

P0.7

D+8

VDDI9

VSSI10

VSSE11

VDDE12

GP1/DI13

P2.0

GP5/WSI15

P2.1

GP0/BCKI17

P2.2

SCL

Q754

C203

10/50

C204

10/50

64

62

P0.4

P0.3

GP2/DO 63

SDA21

P2.4

P2.3

20

22

1

5

R751

X751

C753

050C

C754

BCK 61

P2.5

23

1M

48M

D203

1SS352

D202

60

WS 59

P0.2

ADC

UDA1325

DAC

VSSX24

XTAL1B25

BLM21A102F

Q754
TC7WU04

8

7

4

R753 0

1SS352

Q751

L753

D204

58

P0.1

XTAL2B26

C755

103K

1SS352

D205

1SS352

C205

DA 57

CLK27

C756 104Z

6

L754

NCH-1470

10/50

C764

180J

P0.0 56

VDDX

28

Q754

TC7WU04

VSSA3 55

P2.629P2.730

C538 101J

C206

XTAL1A 54

100/16

C546

2

101JC763

53

XTAL2A

V

V

PSEN31

R714

SCHEMATIC DIAGRAM (INPUT SELECTOR : LINE/MIC)

2

0

6

2.

R404 2.2R403 2.2R402

+5D

USB UP

F801

ICP-S1.0

BLM21P221SG

P801

1

+V

D- 2

D+ 3

4

GND

4BLH-CUM05R5CN1

C402

C418

R908

0.33 (1W)

L801

R847 0

L807

R846 0

L802

C401

47/16

104Z

C409
104Z

C419
103K

223K

R401

L807

R801

R802 15

UDZ5.6B

4.7

D802

10

15

16

19

1

DI1S

5

6

VDDA4

VSSA12

VDDA13

AIL4

AIR

DO2C

VDDD17

VSSD18

AOL19

DO2D

VDDD211

VSSD212

VSSD313

VDDD314

AOR1

DO2W

VSSD417

CLD18

15

64

VSSD13

DI1D 62

DI1O 63

XTLI21

XTLO

VSSA4

20

22

R405

1M

560

X401

R415

33.8688MHZ

C405

080D

0ohmR846,847

4BLH-CUN05R5BN1

UDZ5.6B

VSSD12 61

CLI23

D801

DI2C 60

DI2W 59

TDA1373H

VSSD524

FSL25

VSSD11 58

Q401

VSSD626

C406

UJJ UDD

104Z

FOC 56

DI2D 57

CLO127CLO2

28

080D

C912

FOD55FOW

VSSD729

C911

104Z

52

54

51

VDDD6

DO1C

VSSD10 53

DO1D 50

49

DO1W

48

LOCK

CL

47

DA 46

LD 45

MU 44

SA 43

TST1 42

TST2 41

VSSD9 40

VDDD5 39

RST 38

37

EM

CUS 36

CEN 35

BS

34

VSSD8

33

CLO330

CLO4

VDDD4

32

31

104Z

C403

C404

104Z

C420

220/6.3

R838

R837

SE-U55

3

I2C_SCL

1SS352

D710

Q754

TC7WU04

5

R751

1M

X751

48M

C753

050C

C754

050C

I2C_SDA

101J

C536

+3.3D

C537 101J

C7

C767 1

C768 472K

D1+

D1-

CDCD+

101J

C535

C534 101J

+3.3D

R819

1.5K

0

0

6

C755

103K

L754

Q754

TC7WU04

NCH-1470

+5D

2

4

R753 0

NOTE

.

THE COMPONENTS

REPLACE ONLY

.

VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL)

.

ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.

.

ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.

.

ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.

.

ELECTROLYTIC CAPACITORS ()ARE IN F/WV.

.

ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.

EX) 030 3pF 330 33pF 331 330pF

.

ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.

.

THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.

EX) PRINTING SIDE

.

CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

IDENTIFIED

WITH PART

NUMBER SPECIFIED.

BY MARK

333 0.033uF

ARE CRITICAL FOR

u

INPUT SELECTOR : LINE/MIC

NCAR-7035

SAFETY

SCHEMATIC DIAGRAM (INPUT SELECTOR : LINE/MIC)

P0

260

VSSX24

SE-U55

E-155

D204

1SS352

D205

D203

1SS352

1SS352

D202

C205

10/50

1SS352

C764

180J

58

.

WS 59

P0.1

P0.0 56

VSSA3 55

ADC

Q751

UDA1325

DAC

XTAL2B

XTAL1B25

26

BLM21A102F

L753

Q754
TC7WU04

7

R753 0

C755

103K

CLK27 DA 57

C756 104Z

6

L754

NCH-1470

VDDX

P2.629

28

Q754
TC7WU04

SCHEMATIC DIAGRAM

-5V

D206

C206

100/16

UDZ5.6B

+3.3A

+3.3D

C544

101J

C545

101J

C546

101JC763

180J

C762

104Z

XTAL1A 54

VREF[AD] 41

VREF[DA] 40

P2.730

C538 101J

2

52

53

VDDA3

XTAL2A

ALE 50

VRN 49

VINR 47

NC2

NC1 45

VSSA2 44

VINL 43

VDDA2 42

VSSA1 39

VDDA1 38

VOUTR 37

RTCB 36

VOUTL 34

VSSO

PSEN31

VDDO

R714

EA 48

TC 35

32

VRP

C761

51

46

33

220/6.3

R752

10K

C760 10/16

D751

CDCRST

C757

10/16

C759

10/16

1SS352

10/16

47/16

C758

47/16

47/16

47/16

C332

C331

C362

C361

100K

R366

100K

R316

R314

R364

R351

R352

(NO USE)

+5A

R393

33

-5V

R347 100K

100K

100K

C365

47/16

R397

R343

50K (A)

C315

47/16

R313

100K

L351-353,355,356,506,516

C523, 527,525,

R319

2.2K

152J

152J

R369

2.2K

33

(1/2)

(A)

C358 220/6.3

R313 50K

(2/2)

528,526,C524,

R320

10K

C316

R370

C366

10K

NJM2140R

547, 553,551,

548, 554,552,

355,317,312,R311,

3

2

6

5

510,356,

8

Q352

(1/2)

NJM2140R

Q352

(2/2)

4

R371

4.7K

7

555

556

520

C318

152J

R321

4.7K

C368

152J

1Y1

0Y2

1Z3

ZCOM4

0Z5

INH6

VEE

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

102J

102J

102J

102J

102J

102J

102J

101J

101J

101J

101J

101J

101J

101J

1

7

VCC 16

YCOM 15

XCOM 14

1X 13

0X 12

A11

Q752

74HC4053

B10

C9GND8

GND

UDDUJJ

(ECHU)

ohm

0

0

0

0

0

0

0

C319

47/16

C369

47/16

4.7K

C351

220/16

R375

220/6.3

C308

R325 4.7K

R362 100K

47/16

100K

R361

Lch

Rch

1

R339

R389

7

R336

Q358

1

(2/2)

Q359

22K

22K

(1/2)

Q359

8

22K

3

8

NJM2140R

3

6.8K

2

R338

10K

R388

10K

6

R387

5

6.8K

R318

2.2K

R332

R382

R368

2.2K

0

NJM2140R

Lch

Rch

0

33

33

22K

33K

R365

R386

5

6

4

Q358

(2/2)

7

NJM2140R

C374 101J

+5A

33

R394

82K

R385

82K

R335

NJM2140R

220/16

R315

2

C324 101J

C352

33K

(1/2)

Lch

Rch

-5V
33

R334

R337

4

C304

47/16

C363

100K

R310

C313

GND

47/16

R322

R372

C311 10/16

470

470

R306

1K

R392

1K

C302 100/6.3

NJM4565M-D

Q386

RN1444-A

Q387

RN1444-A

Q388

1

C305
331K

7

L301,302

L504

C513,515

C514,516

R521

R522

R523

Lch

Rch

RN1444-A

Q389
RN1444-A

(1/2)

R308

Q301

33K

Q301

(2/2)

8

4

NJM4565M-D

3

2

680

6

C303

5

BLM21P221SG

BLM21P221SG

4BLH-CUN05R5BN1

102J

102J

101J

101J

0

0

0

0

ohm309, 506505,R303,

U55UJJ 155UJJ U55UDD

R323

470

Q353

RN1444-A

Q354

RN1444-A

R373

470

L381-383

L505

R302

C307

221K

R305

47/16

541

521,519,C517,

529,522,520,C518,

507-509 ohm

384,383,R381,

4.7K

R307

1K

L301

C301

R303

4.7/35

100K

R301 330K

R304

R309

L302

UDDUJJ

R311

L351

R312

L353

R317

L352

L355

R355

R510

R324 330KR374 330K

L506

L516

R520

R356

L356

BLM21P221SG

4BLH-CUM05R5CN1

102J

542

101J

0

C516

C515

C514

C513

C517

C518

C519

C551

C552

C553

C554

C555

C556

C523

C524

C525

C526

C547

C548

C527

C528

R505

L504

R506

R521

R522

R523 0

UDDUJJ

P301

MIC IN

0

0

P302

L(2VrmsFS)

LINE IN

R(2VrmsFS)

P303

L(1VrmsFS)

LINE OUT

R(1VrmsFS)

E902

E901

SCHEMATIC DIAGRAM (INPUT SELECTOR : LINE/MIC)

101J

D

542

529,522,520,C518

6

2

Q754
TC7WU04

L754

NCH-1470

R753 0

C755

103K

+5D

C

CDCRST

CDCD+

P_ON_RST

WIN/MAC

CDCD+

PROTECT

P_ON_RST

Q701

MB89135A

MOD1

X701
4MHZ

10K

R708

WIN/MAC

ONK/KORG

I2C_SDA_D

I2C_SCL_D

VccX1X0

Q706 74HCT7007

EPROM_WR

EPROM_WR

Output only

X1A

X0A

5

CLK

10K

10K

10K

R703

R706

PROTECT

ONK/KORG

0

0R702

POWERMODE

R704

R707 0

R743

36

37

C705

3

104Z

Q706

74HCT7007

38

POWER MODE

39

40

OPT/COAX

41

UPLED

42

MCU_MUTE

43

Avss

44

AVR

45

MODE

46

INH

47

Nch Open drain

MIC/LINE

48

AVcc

MOD0

RST

123456789

RESET

C701

104Z

10K

R700

OPT/COAX CDCRST

UP_LED SRC_DA

MCU_MUTE

MODE

R701 2.7K

74HCT7007

INH

1

2

Q706

14

10K

R713

MIC/LINE

4

R705

10K

104Z

C702

CLK
101112

6

10K

R718

I2C_SCL_D

I2C_SDA_D

2526272829303132333435

I2C_SCL_A

I2C_SDA_A

DIG/ANA

CDCRST

DRC_DA

Vss

DIT_C3

NC

DIT_C2

DIT_C15

SRC_RST

SRC_LD

9

8

SRC_LD

Q706

74HCT7007

INH

10K

R717

24

23

22

21

20

19

18

17

16

15

14

13

WAV/DIR

11

10

SRC_RST

Q706

74HCT7007

MIC/LINE

I2C_SCL_A

D702
UDZ3.3B

I2C_SDA_A

R744

7

74HCT7007

DIG/ANA

6.8K

D701
1SS352

13

12

Q706

10K

R716

MCU_MUTE

10K

15K

R715

R746

R745

3.9K

DIT_C2

DIT_C15

WAV/DIR

DIT_C3

Q384

RN1402

SFPJ63

R390

EPROM_WR

P702

(NO USE)

D301

470

470

560

560

R396

R395

R391

Q385

C306

470/6.3

C703

104Z

S01

VCC

S12

Q704

S23SCL6

M24C16M24C16

BR24C16F

GND4

SDA 5

EPROM_WR

S01

VCC

S12

Q705

S23SCL6

BR24C16F

GND4

SDA 5

SE-U55

,

507-509 ohm

0

384,383,R381,

C517

R380 100K R330 100K

L381

R381

L383

R383
R384

L382

MODE

390

470

820

OPT/COAX

R709

R710

R711

C518

C519

C520

C521

C522

C529

C541

C542

WIN/MAC

R507

L505

R508

R509

S701S702

E904

S703

P381

PHONES

WIN/MAC SW

OPT/COAX SW

INPUT SELCTOR

MIC

LINE

INTERNAL

MONITOR

ANALOG

DIGITAL

8.2K

10/16

50K(A)

R326

R398

50K

R326

(1/2)

39K

(A)

(2/2)

RN2401

8

WC

7

I2C_SCL_A
I2C_SDA_A

8

7

WC

I2C_SCL_D

I2C_SDA_D

C371

10/16

R378 39K

I2C_SCL_A

I2C_SCL_D

I2C_SDA_A

I2C_SDA_D

DIG/ANA

(NO USE)

39K

R348

22/6.3

R328 39K

C310

C359 105M

NO USE

I2C_SDA

R729

10K

R754 6.8K

Q711

RN2401

10K

R730

1Y1

0Y2

1Z3

ZCOM4

0Z5

INH6

VEE

7

C309 105M

I2C_SCL

C360 22/6.3

Q708

3

(1/2)

2

5

Q383

(2/2)

6

VCC 16

YCOM 15

XCOM 14

1X 13

0X 12

A11

74HC4053

B10

C9GND8

8

Q383

NJM3414A

4

NJM3414A

RN1444-A

RN1444-A

1

Q381

Q382

7

C322

47/16

C372

47/16

C704

104Z

R329

33

R379

33

C706
104Z

R327 8.2K

R377

C321

SCHEMATIC DIAGRAM (INPUT SELECTOR : MONITOR)

V

R

R

SE-U55

DC IN

INPUT

COAXIAL

OUTPUT

OPTICAL

OUTPUT

TORX178A

OPTICAL

INPUT

P901

7.5V

1.5A

TOTX178

L501-503

C501,503,505,507

C502,504,506,508

C509

C510

C511

C512

R502-504

P401

U402

U401

BLM21P221SG

104Z

NC

NO USE

L901

R912

C913

R407 75

C504

C508

C414

L401

NCH-1479

47UH

C415

C530

101J

E903

101JC530

UJJ UDD

0

C509

C510

C511

C512

C503

R502

R503

C507

104Z

104Z

UJJ UDD

0

ICP-S2.3

BLM21B221SB

BLM21B221SB

BLM21B221SB

L502

C502

L503

C506

1K

C401

47/16

C901 10/16

EM1/C813

EM0/C914

CBL/SBC15

RST16

17

TXN

19

VD+

TXP20

M021

M122

M223

24

TRNPT/FC1

DI2C 60

Q901

SI-3050F

G

INOVC VOS

1

1K

10K

R901

R902

C9/C15

12

U11

C/SBF 10

V9

SDATA 8

FSYNC 7GND18

Q402

SCK 6

MCK 5

C6/C2 4

C1/FC0

3

CS8404A

2

PRO

C7/C3

1

FOD55FOW 54

FOC 56

DI2D 57

DI2W 59

VSSD11 58

D903

R914

F901

101J

101J

101J

101J

102J

102J

102J

102J

331J

102J

223Z

473Z

0

0

0

ohm

C501

C505

0.1/50

1

C910

0.47/50

R408

75

NSRF-2046

0.22

SFPJ63

(1W)

UJJ UDD

R504

L501

L402

C413

472K

22/16

C417

104Z

64

VSSD13

DI1D 62

DI1O 63

VSSA12

VDDA13

AIL4

AIR5CL47

VSSD12 61

R501

C410

DI1S

C412

1

VSSD10 53

D902

52

VDDD6

DO1C

DO1D 50

DO1W

LOCK 48

D901

SFPJ63

51

49

SFPJ63

128FS

DIT_C3

CLK

C903

DIT_C2

SRC_DA

SRC_LD

SI-3033LUS

470/6.3

+5D

DIT_C15

SRC_RST

Q902

I

O

G

R409

R411 680

R410

330

R911

SLR-332MC

D904

680

680

R913

101J

C534

101J

C535

C200

C765

104Z

101J

C536

4

102J

13

5

R201

4.7K

101J

C537

MODEL NO

D200

12

1SS352

11

R202

R203

2.2K

6

2.2K
9

D201

1SS352

C201

102J

C534-540

101J

544-546

BK1608LL241-T

R511-519

ohm

0

0

0

0

0

0

0

0

0

R714 100

(UDD= )

R511

R512

R513

R514

R515

R516

R517

R518

L751

C751

BLM21A102F

104Z

C539

C752

101J

104Z

C540

L752

101J

BLM21A102F

R519

333K

C766

C767 103K

C768 472K

Q903

SI-3033LUS

O

I

G

330

22K

R903

NC1

D406

R904

10K

UDZ3.3B

BCKO

WSO

1

IN

2

3

NC2

DO

1.5K

R412

R907 0

2.2K

R402

Q905

RN1402

1.5K

R413

2.2K

R403

DI

BCKI

WSI

R414 1.5K

D404

D405

D403

D402

D401

1SS352

R404 2.2K

C904

104Z

Q904

NC3 8

VCC 7

OUT 6

M51957B

CAP 5GND4

DO

BCKO

+3.3D

C543

105M

UP_LED

RESET

WAV/DIR

R905

RESET

C905

Q357

UJJ UDD

74HC04

14

2

3

1

7

R200

Q753

VCC 16

YCOM 15

XCOM 14

1X 13

0X 12

A11

74HC4053

B10

C9GND8

10K

+3.3A

GND

+5A

1Y1

0Y2

1Z3

ZCOM

4

0Z5

INH6

VEE7

10K

C543

C905

1/50

SE-U55/UE-155

2SA1162-Y

Q200

1K

C202

102J

R204

10

R205

8

R206

R207

0

14

16

18

19

3

TC7WU04

1K

Q201

1K

1K

2SC2712-Y

UDDUJJ

1

GP3/WSO

2

GP4/BCKO

P0.53

SHTCB4

5

P0.6

D-6

7

P0.7

D+8

VDDI9

VSSI10

VSSE11

VDDE12

GP1/DI13

P2.0

GP5/WSI15

P2.1

GP0/BCKI17

P2.2

SCL

Q754

C203

10/50

C204

10/50

64

62

P0.4

P0.3

GP2/DO 63

SDA21

P2.4

P2.3

20

22

1

5

R751

X751

C753

050C

C754

BCK 61

P2.5

23

1M

48M

D203

1SS352

D202

60

WS 59

P0.2

UDA1325

DAC

VSSX24

XTAL1B25

BLM21A102F

Q754
TC7WU04

8

7

4

R753 0

1SS352

Q751

L753

D204

58

P0.1

XTAL2B26

C755

103K

1SS352

D205

1SS352

C205

DA 57

CLK27

C756 104Z

6

L754

NCH-1470

10/50

C764

180J

P0.0 56

VDDX

28

Q754

TC7WU04

VSSA3 55

P2.629P2.730

C538 101J

C206

XTAL1A 54

100/16

C546

2

101JC763

53

XTAL2A

V

V

PSEN31

R714

SCHEMATIC DIAGRAM (INPUT SELECTOR : MONITOR)

2

0

6

2.

R404 2.2R403 2.2R402

+5D

USB UP

F801

ICP-S1.0

BLM21P221SG

P801

1

+V

D- 2

D+ 3

4

GND

4BLH-CUM05R5CN1

C402

C418

R908

0.33 (1W)

L801

R847 0

L807

R846 0

L802

C401

47/16

104Z

C409
104Z

C419
103K

223K

R401

L807

R801

R802 15

UDZ5.6B

4.7

D802

10

15

16

19

1

DI1S

5

6

VDDA4

VSSA12

VDDA13

AIL4

AIR

DO2C

VDDD17

VSSD18

AOL19

DO2D

VDDD211

VSSD212

VSSD313

VDDD314

AOR1

DO2W

VSSD417

CLD18

15

64

VSSD13

DI1D 62

DI1O 63

XTLI21

XTLO

VSSA4

20

22

R405

1M

560

X401

R415

33.8688MHZ

C405

080D

0ohmR846,847

4BLH-CUN05R5BN1

UDZ5.6B

VSSD12 61

CLI23

D801

DI2C 60

DI2W 59

TDA1373H

VSSD524

FSL25

VSSD11 58

Q401

VSSD626

C406

UJJ UDD

104Z

FOC 56

DI2D 57

CLO127CLO2

28

080D

C912

FOD55FOW

VSSD729

C911

104Z

52

54

51

VDDD6

DO1C

VSSD10 53

DO1D 50

49

DO1W

48

LOCK

CL

47

DA 46

LD 45

MU 44

SA 43

TST1 42

TST2 41

VSSD9 40

VDDD5 39

RST 38

37

EM

CUS 36

CEN 35

BS

34

VSSD8

33

CLO330

CLO4

VDDD4

32

31

104Z

C403

C404

104Z

C420

220/6.3

R838

R837

SE-U55

3

I2C_SCL

1SS352

D710

Q754

TC7WU04

5

R751

1M

X751

48M

C753

050C

C754

050C

I2C_SDA

101J

C536

+3.3D

C537 101J

C7

C767 1

C768 472K

D1+

D1-

CDCD+

101J

C535

C534 101J

+3.3D

R819

1.5K

0

0

6

C755

103K

L754

Q754

TC7WU04

NCH-1470

+5D

2

4

R753 0

NOTE

.

THE COMPONENTS

REPLACE ONLY

.

VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL)

.

ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.

.

ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.

.

ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.

.

ELECTROLYTIC CAPACITORS ()ARE IN F/WV.

.

ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.

EX) 030 3pF 330 33pF 331 330pF

.

ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.

.

THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.

EX) PRINTING SIDE

.

CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

IDENTIFIED

WITH PART

NUMBER SPECIFIED.

BY MARK

333 0.033uF

ARE CRITICAL FOR

u

INPUT SELECTOR : MONITOR

NCAR-7035

SAFETY

SCHEMATIC DIAGRAM (INPUT SELECTOR : MONITOR)

P0

260

VSSX24

SE-U55

E-155

D204

1SS352

D205

D203

1SS352

1SS352

D202

C205

10/50

1SS352

C764

180J

58

.

WS 59

P0.1

P0.0 56

VSSA3 55

Q751

UDA1325

DAC

VDDX

P2.629

XTAL2B

XTAL1B25

CLK27 DA 57

28

26

BLM21A102F

L753

Q754
TC7WU04

7

R753 0

C755

103K

C756 104Z

6

L754

NCH-1470

Q754
TC7WU04

SCHEMATIC DIAGRAM

-5V

D206

C206

100/16

UDZ5.6B

+3.3A

+3.3D

C544

101J

C545

101J

C546

101JC763

180J

C762

104Z

XTAL1A 54

VREF[AD] 41

VREF[DA] 40

P2.730

C538 101J

2

52

53

VDDA3

XTAL2A

ALE 50

VRN 49

VINR 47

NC2

NC1 45

VSSA2 44

VINL 43

VDDA2 42

VSSA1 39

VDDA1 38

VOUTR 37

RTCB 36

VOUTL 34

VSSO

PSEN31

VDDO

R714

EA 48

TC 35

32

VRP

C761

51

46

33

220/6.3

R752

10K

C760 10/16

D751

CDCRST

C757

10/16

C759

10/16

1SS352

10/16

47/16

C758

47/16

47/16

47/16

C332

C331

C362

C361

100K

R366

100K

R316

R314

R364

R351

R352

(NO USE)

+5A

R393

33

-5V

R347 100K

100K

100K

C365

47/16

R397

R343

50K (A)

C315

47/16

R313

100K

L351-353,355,356,506,516

C523, 527,525,

R319

2.2K

152J

152J

R369

2.2K

33

(1/2)

(A)

C358 220/6.3

R313 50K

(2/2)

528,526,C524,

R320

10K

C316

R370

C366

10K

NJM2140R

547, 553,551,

548, 554,552,

355,317,312,R311,

3

2

6

5

510,356,

8

Q352

(1/2)

NJM2140R

Q352

(2/2)

4

R371

4.7K

7

555

556

520

C318

152J

R321

4.7K

C368

152J

1Y1

0Y2

1Z3

ZCOM4

0Z5

INH6

VEE

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

BLM21P221SG

102J

102J

102J

102J

102J

102J

102J

101J

101J

101J

101J

101J

101J

101J

1

7

VCC 16

YCOM 15

XCOM 14

1X 13

0X 12

A11

Q752

74HC4053

B10

C9GND8

GND

UDDUJJ

(ECHU)

ohm

0

0

0

0

0

0

0

C319

47/16

C369

47/16

4.7K

C351

220/16

R375

220/6.3

C308

R325 4.7K

R362 100K

47/16

100K

R361

Lch

Rch

1

R339

R389

7

R336

Q358

1

(2/2)

Q359

22K

22K

(1/2)

Q359

8

22K

3

8

NJM2140R

3

6.8K

2

R338

10K

R388

10K

6

R387

5

6.8K

R318

2.2K

R332

R382

R368

2.2K

0

NJM2140R

Lch

Rch

0

33

33

22K

33K

R365

R386

5

6

4

Q358

(2/2)

7

NJM2140R

C374 101J

+5A

33

R394

82K

R385

82K

R335

NJM2140R

220/16

R315

2

C324 101J

C352

33K

(1/2)

Lch

Rch

-5V
33

R334

R337

4

C304

47/16

C363

100K

R310

C313

GND

47/16

R322

R372

C311 10/16

470

470

R306

1K

R392

1K

C302 100/6.3

NJM4565M-D

Q386

RN1444-A

Q387

RN1444-A

Q388

1

C305
331K

7

L301,302

L504

C513,515

C514,516

R521

R522

R523

Lch

Rch

RN1444-A

Q389
RN1444-A

(1/2)

R308

Q301

33K

Q301

(2/2)

8

4

NJM4565M-D

3

2

680

6

C303

5

BLM21P221SG

BLM21P221SG

4BLH-CUN05R5BN1

102J

102J

101J

101J

0

0

0

0

ohm309, 506505,R303,

U55UJJ 155UJJ U55UDD

R323

470

Q353

RN1444-A

Q354

RN1444-A

R373

470

L381-383

L505

R302

C307

221K

R305

47/16

541

521,519,C517,

529,522,520,C518,

507-509 ohm

384,383,R381,

4.7K

R307

1K

L301

C301

R303

4.7/35

100K

R301 330K

R304

R309

L302

UDDUJJ

R311

L351

R312

L353

R317

L352

L355

R355

R510

R324 330KR374 330K

L506

L516

R520

R356

L356

BLM21P221SG

4BLH-CUM05R5CN1

102J

542

101J

0

C516

C515

C514

C513

C517

C518

C519

C551

C552

C553

C554

C555

C556

C523

C524

C525

C526

C547

C548

C527

C528

R505

L504

R506

R521

R522

R523 0

UDDUJJ

P301

MIC IN

0

0

P302

L(2VrmsFS)

LINE IN

R(2VrmsFS)

P303

L(1VrmsFS)

LINE OUT

R(1VrmsFS)

E902

E901

SCHEMATIC DIAGRAM (INPUT SELECTOR : MONITOR)

101J

D

542

529,522,520,C518

6

2

Q754
TC7WU04

L754

NCH-1470

R753 0

C755

103K

+5D

C

CDCRST

CDCD+

P_ON_RST

WIN/MAC

CDCD+

PROTECT

P_ON_RST

Q701

MB89135A

MOD1

X701
4MHZ

10K

R708

WIN/MAC

ONK/KORG

I2C_SDA_D

I2C_SCL_D

VccX1X0

Q706 74HCT7007

EPROM_WR

EPROM_WR

Output only

X1A

X0A

5

CLK

10K

10K

10K

R703

R706

PROTECT

ONK/KORG

0

0R702

POWERMODE

R704

R707 0

R743

36

37

C705

3

104Z

Q706

74HCT7007

38

POWER MODE

39

40

OPT/COAX

41

UPLED

42

MCU_MUTE

43

Avss

44

AVR

45

MODE

46

INH

47

Nch Open drain

MIC/LINE

48

AVcc

MOD0

RST

123456789

RESET

C701

104Z

10K

R700

OPT/COAX CDCRST

UP_LED SRC_DA

MCU_MUTE

MODE

R701 2.7K

74HCT7007

INH

1

2

Q706

14

10K

R713

MIC/LINE

4

R705

10K

104Z

C702

CLK
101112

6

10K

R718

I2C_SCL_D

I2C_SDA_D

2526272829303132333435

I2C_SCL_A

I2C_SDA_A

DIG/ANA

CDCRST

DRC_DA

Vss

DIT_C3

NC

DIT_C2

DIT_C15

SRC_RST

SRC_LD

9

8

SRC_LD

Q706

74HCT7007

INH

10K

R717

24

23

22

21

20

19

18

17

16

15

14

13

WAV/DIR

11

10

SRC_RST

Q706

74HCT7007

MIC/LINE

I2C_SCL_A

D702
UDZ3.3B

I2C_SDA_A

R744

7

74HCT7007

DIG/ANA

6.8K

D701
1SS352

13

12

Q706

10K

R716

MCU_MUTE

10K

15K

R715

R746

R745

3.9K

DIT_C2

DIT_C15

WAV/DIR

DIT_C3

Q384

RN1402

SFPJ63

R390

EPROM_WR

P702

(NO USE)

D301

470

470

560

560

R396

R395

R391

Q385

C306

470/6.3

C703

104Z

S01

VCC

S12

Q704

S23SCL6

M24C16M24C16

BR24C16F

GND4

SDA 5

EPROM_WR

S01

VCC

S12

Q705

S23SCL6

BR24C16F

GND4

SDA 5

SE-U55

,

507-509 ohm

0

384,383,R381,

C517

R380 100K R330 100K

L381

R381

L383

R383
R384

L382

MODE

390

470

820

OPT/COAX

R709

R710

R711

C518

C519

C520

C521

C522

C529

C541

C542

WIN/MAC

R507

L505

R508

R509

S701S702

E904

S703

P381

PHONES

WIN/MAC SW

OPT/COAX SW

INPUT SELCTOR

MIC

LINE

INTERNAL

MONITOR

ANALOG

DIGITAL

8.2K

10/16

50K(A)

R326

R398

50K

R326

(1/2)

39K

(A)

(2/2)

RN2401

8

WC

7

I2C_SCL_A
I2C_SDA_A

8

7

WC

I2C_SCL_D

I2C_SDA_D

C371

10/16

R378 39K

I2C_SCL_A

I2C_SCL_D

I2C_SDA_A

I2C_SDA_D

DIG/ANA

(NO USE)

39K

R348

22/6.3

R328 39K

C310

C359 105M

NO USE

I2C_SDA

R729

10K

R754 6.8K

Q711

RN2401

10K

R730

1Y1

0Y2

1Z3

ZCOM4

0Z5

INH6

VEE

7

C309 105M

I2C_SCL

C360 22/6.3

Q708

3

(1/2)

2

5

Q383

(2/2)

6

VCC 16

YCOM 15

XCOM 14

1X 13

0X 12

A11

74HC4053

B10

C9GND8

8

Q383

NJM3414A

4

NJM3414A

RN1444-A

RN1444-A

1

Q381

Q382

7

C322

47/16

C372

47/16

C704

104Z

R329

33

R379

33

C706
104Z

R327 8.2K

R377

C321

PC BOARD VIEW PARTS LIST

SE-U55

CIRCUIT NO. DESCRIPTION PART NUMBER

D200~D205 1SS352, C-DIODE or 223234R2 or
1SS355, C-DIODE 223269R2
D206 UDZ5.6B, ZENER D 224490560R2
D301 SFPJ-63, DIODE 223271R2
D401~D403 1SS352, C-DIODE or 223234R2 or
1SS355, C-DIODE 223269R2
D404~D406 UDZ3.3B, ZENER D or 224490330R2 or
RD3.3SB2, ZENER D 224370332R2
D701 1SS352, C-DIODE or 223234R2 or
1SS355, C-DIODE 223269R2
D702 UDZ3.3B, ZENER D or 224490330R2 or
RD3.3SB2, ZENER D 224370332R2
D710, D751 1SS352, C-DIODE or 223234R2 or
1SS355, C-DIODE 223269R2
D801, D802 UDZ5.6B, ZENER D 224490560R2
D901~D903 SFPJ-63, DIODE 223271R2
D904 SLR-332MC3F, LED 225332
F801 ICP-S1.0, FUSE 252223R2
F901 ICP-S2.3, FUSE 252226R2
L301, L302 BLM21P221SG, CHOKE COIL 230949R2
L351~L353 BLM21P221SG, CHOKE COIL 230949R2
L355, L356 BLM21P221SG, CHOKE COIL 230949R2
L381~L383 BLM21P221SG, CHOKE COIL 230949R2
L401 NCH-1479, CHOKE COIL 231237K470R2
L402 NSRF-2046, MPX COIL 232136
L501 BLM21B221SB, CHOKE COIL 230947R2
L504, L505 NMBL-003, BLN COIL 233532R2
L506, L516 BLM21P221SG, CHOKE COIL 230949R2
L751~L753 BLM21A102F, CHOKE COIL 230948R2
L754 NCH-1470, CHOKE COIL 231237M015R2
L801, L802 BLM21P221SG, CHOKE COIL 230949R2
L807 NMBL-003, BLN COIL 233532R2
P301 YKB21-5181, JACK 25045579
P302, P303 NPJ-2PDR446, PIN JACK 25045641
P381 YKB21-5182, JACK 25045388
P401 NPJ-2PDO445, PIN JACK 25045640
P801 NSCT-4P2179, SOCKET 25052282
P901 HEC0470-01-630, JACK 25045598
Q200 2SA1162-Y, TR 2214374R2
Q201 2SC2712-Y, TR 2213144R2
Q301 NJM4565M-D, IC 22241383R2
Q352 NJM2140R, IC 22241311R2
Q353~Q354 RN1444-A, TR 2216031R2
Q357 74HC04, IC 222740045R2
Q358 NJM2140R, IC 22241311R2
Q359 NJM2140R, IC 22241311R2
Q381~Q382 RN1444-A, TR 2216031R2
Q383 NJM3414AV, IC 22241469R2
Q384 RN1402, TR 2214470R2
Q385 RN2401, TR 2214520R2
Q386~Q389 RN1444-A, TR 2216031R2
Q401 TDA1373H, IC 22241428R3
Q402 CS8404A, IC 22241429R2
Q701 MB89135L-611, IC 22241557AR2
Q704 M24C16-WMN6T, IC or 22241431R2 or
BR24C16F, IC 22241430R2
Q705 M24C16-WMN6T, IC or 22241431R2 or
BR24C16F, IC 22241430R2
Q706 TC74HCT7007AF, IC 222740077R2TO
Q708 TC74HC4053FP, IC 22241228R2

CIRCUIT NO. DESCRIPTION PART NUMBER

Q711 RN2401, TR 2214520R2
Q751 UDA1325H, IC 22241312R3
Q752, Q753 TC74HC4053FP, IC 22241228R2
Q754 TC7WU04FU, IC 22240935R2
Q901 SI-3050F, IC 22241561
Q902, Q903 SI-3033LUS, IC 22278033CR2
Q904 M51957BFP, IC 22241239R2
Q905 RN1402, TR 2214470R2
R313, R326 N09RGL50KA20F, VARI R 5112486
R511~R519 BK1608LL241-T, EMIFIL 230959R1
R908 RNU1WCJ-0.33, METAL R 453633394
R914 RNU1WCJ-0.22, METAL R 453632294
S701, S702 NSS-22203, SLIDE SW 25065581
S703 NRSF-224-20U, ROT SW 25030419
U401 TORX178B, PHT CP 24120037
U402 TOTX178A, PHT PARTS 24120031
X401 HC-49U/03 33.8688MHz, 3010325
CRYSTAL
X701 CST4.00MGW, CERA LOCK 3010150
X751 HC-49/U03 48.000MHz, 3010328
CRYSTAL

Microprocessor terminal descriptions

n

)

p

p

g

)

)

)

(

)

p

p

p

)

(

)

p

p

t

t

g

pyrig

)

)

g

g

y

a

g

,

No. Pin!Name I/O Functio

1 3.3V +3.3V
2 RESET I Reset!input!(RESET:"L"
3 GND I GND
4 GND I/O GND
5 4MHz I External!4MHz!clock!in
6 4MHz I External!4MHz!clock!in
7 3.3V +3.3V
8 GND GND

9 X1A Open
10 CLK O CLK!si
11 SRC_LD O LD!signal!output!of!SRC(TDA1371H
12 SRC_RESET O Reset!output!of!SRC(TDA1373H

13 WAV/DIR O

14 DIT!C15 O To!DIT!C15pin
15 DIT!C2 O To!DIT!C2
16 (NO!USE) O O
17 DIT!C3 O To!DIT!3
18 (NO!USE) I GND
19 GND GND
20 SRC_DA I/O Serial!data!of!SRC81373H
21 CODEC!RST I/O To!VREF!of!USB!CODEC
22 DIG_ANA O EEPROM!for!USB!CODEC!select!signal!output
23 I2C!SDA!A I/O SDA!
24 I2C!SCL!A I/O SCL!

25 I2C!SDA!D I/O

26 I2C!SCL!D I/O

27 (NO!USE) I GND

28 EPROM!WR I/O

29 (NO!USE) I GND
30 MAC/WIN I The!settin
31 ONK/KORG I Co
32 PROTECT I Existence!of!copyright!protection!information.!(H:normal!mode
33 PON_RST O Power-on!reset.

34 CODEC!D+ I/O

35 (NO!USE) I GND

36

OWER!MODEI

37 (NO!USE) I GND
38 (NO!USE) I GND
39 (NO!USE) I GND

40 OPT/COAX I

41 UPLED O Li
42 MCU!MUTE O MCU_MUTE!(it!is!MYUTO!operation!at!"L").
43 GND GND
44 3.3V 3.3V

45 MODE I

46 (NO!USE) O GND
47 INH O Prohibition!of!an!analo

48 MIC/LINE O

CODEC!output!(WAVE!or!MONITOR)!select!signal!output

SDA!port!for!EEPROM!writing!for!DIGITAL!setup.!Usually,!i
considers!as!an!input!and!becomes!SDA!input!and!output!at!the
time!of!writing.

SCL!port!for!EEPROM!writing!for!DIGITAL!setup.!Usually,!i
considers!as!an!input!and!becomes!SCL!output!at!the!time!of

EEPROM!write-in!control!port.!Usually,!it!is!an!input!port,!and
immediately!after!reset,!when!this!is!"L",!"L"!is!outputted!and
EEPROM!is!written!in.

D+!of!USB!CODEC!(UDA1325)!is!controlled.!Usually,!it!is!"H"
and!D+!is!

A!setup!of!POWER!MODE!of!USB.
L:!BUS!POWER!H:SELF!POWER.

The!change!switch!of!OPTICAL!and!COAXICAL.
H:!COAXICAL!and!L:OPTICAL.

The!change!switch!of!MONITOR/INTERNAL/LINE/Medi
Interface!Connector.

An!input!change!of!Media!Interface!Connector/LINE.
H:!Media!Interface!Connector

nal!output!of!SRC(TDA1373H

WAVE!:!"H"

in

en

in

ort!for!EEPROM!writing.

ort!for!EEPROM!writing.

!switch!(H:WIN,!L:MAC)!of!WIN/MAC.

ht!output!protection.!(H:normal!mode

rounded!through!a!diode!by!"L."

ht!Emitting!Diode!display!of!UP!(the!light!is!switched!on!b

SE-U55

ut
ut

!input/output

UDA1325

!input!(it!forbids!by!"H").

!L:LINE.

PACKING-1

Assembly Method

1 Factory-shipped condition

2 Serial No. of LABEL(POS) AS is stuck on CASE (R).

3 A set is put into POLY BAG, and a tape is stuck and it fixes.

Parts Number Parts Name

29362765 LABEL(POS)AS
29100097-1A POLY BAG(350 X 250)
29110149 TAPE(SEROHAN)

SE-U55

FUNCTION SELECTOR dial LINE
INPUT LEVEL adjustment dial MIN
PHONES LEVEL adjustment dial MIN
DIGITAL IN COAX/OPT selector OPT (Rear side)
WIN/MAC selector WIN (Bottom side)

It is staging the printing side of POLY BAG, putting in a set,
and bending a portion to CASE (R) side not much.

FUNCTION SELECTOR dial LINE

INPUT LEVEL adjustment dial MIN

PHONES LEVEL adjustment dial MIN

TAPE (SEROHAN)

FUNCTION SELECT

L

AL

N

ER

INT

OR

IT

MON

L

A

IGIT

D

INPU

P

H

O

PH

USB DIGITAL A

PR

OCESSOR

SE-U

ANALOG

UP

OR

E

IN

M

IC

T

L

EV

EL

MAX

N

E

LE

V

E

L

M

AX

M

IC

O

N

E

S

UDIO

5

5

DIGITAL IN COAX/OPT selector

LABEL(POS)AS

OPT

WIN/MAC selector

WIN (Bottom side)

LINE IN

LINE OUT

D

D

C

O

OP

C

IN

IGITAL IN

O

UP USB

D

IG

A

X

TIC

L

R

L

R

7

.5

V

C

O

A

X

PT

ITA

L

IN

IA

L

OU

T

IN

AL

O

UT

WIN
MAC

PACKING-2

Assembly Method

4 It puts in in the order of INS MANUAL J(SE-U55),INS MANUAL J(CarryOnMusic),

Parts Number Parts Name

29100097-1A POLY BAG(350 X 250)
28343006 INS MANUAL J(SE-U55)
29343043 INS MANUAL J(CarryOnMusic)
292163 CD ROM(SE-U55)
29365075B WRNTY CARD
2050066 CORD AS(NCS-1P150)
2010391 CORD AS(USB-1M)
2010385 PIN CORD AS(0.8MT)
29110149 TAPE(SEROHAN)

SE-U55

WRANTY CARD,CD-ROM(SE-U55),CORD AS(NCS-1P150),CORD AS(USB-1M),
PIN CORD AS into POLY BAG, and fixes on a tape.
*) POLY BAG is turning a character side down.

PIN CORD AS(0.8MT)

CORD AS(USB-1M)

CORD AS(NCS-1P150)

CD ROM(SE-U55)

WRNTY CARD

INS MANUAL J(CarryOnMusic)

INS MANUAL J(SE-U55)

POLY BAG(350 X 250)

TAPE(SEROHAN)

Packing-3

Assembly Method

5 Put the unit into assembled PAD (IN).
6 Assemble CARTON (IN).
7 Put PAD (IN) AS into assembled CARTON (IN).
8 Put Catalog AS into assembled CARTON (IN).

Parts Number Parts Name

29091959 PAD (IN)
29053665A CARTON (IN)

SE-U55

UNIT

PAD (IN)

PAD (IN) AS

CARTON (IN)

Catalog AS

Packing-4

Parts Number Parts Name

29362778A LABEl(D)
29053666 CARTON(OUT)
29095891 SHEET(D)

SE-U55

CARTON (IN)

LABEL (D)

CARTON (IN)

SHEET (D)

CARTON (OUT)

LABEL (POS) AS

Top side : PP tape

SE-U55

ONKYO CORPORATION

Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN
Tel: [phone] Fax: [phone]

ONKYO U.S.A. CORPORATION

18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.
Tel: [phone] Fax: [phone] E-mail: [e-mail]

PN 0M3692

HOMEPAG

http://www.onkyo.co.jp/

E