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