SE-U55
SERVICE MANUAL
Ref.No.3692
May 2001
USB Digital Audio Processor
SE-U55
UP
FUNCTION SELECTOR
INTERNAL
LINE
MIC
MONITOR
DIGITAL
INPUT LEVEL
PHONE LEVE
L
MAX
MAX
MIC
PHONES
USB D
IGIT
AL AU
DIO
PROC
ESSOR
SE-U
55
SE-U55
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.
Main specifications
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.
Instruction Manual
USB Digital Audio Processor
SE-U55
UP
FUNCTION SELECTOR
INTERNAL
LINE
MIC
MONITOR
DIGITAL
INPUT LEVEL
PHONE
LEVEL
MIN
MIC
-
+
PHONES
USB
DIGIT
AL AU
DIO
PROC
ESSO
R
SE-U
55
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)
Explains operational procedures and the required settings for
connecting the SE-U55 to your computer.
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.
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.
CarryOn Music instruction manual (1)
Instruction manual for using the supplied software CarryOn
Music.
Note:
The power supply for the SE-U55 is supplied through the USB cable from the connected computer.
Registration Card (1)
Quick Setup guide (1)
SE-U55
CHASSIS-EXPLODED VIEW
9
10
12
8
7
13
7
11
14
6
1
4
2
15
5
7
7
7
U1
19
17
19
19
16
18
3
Q75
1
21
20
SE-U55
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)
DAC
C9/C15
P401
Q200
2SA1162-Y
Q201
2SC2712-Y
11
10
9
8
13
12
5
6
3
4
Q357
74HC04
1
2
7
14
Q902
SI-3033LUS
G
I
O
Q903
SI-3033LUS
G
I
O
Q901
SI-3050F
G
1
IN
O
VC
VOS
E903
C200
102J
Q402
CS8404A
C/SBF 10
C6/C2 4
C7/C3 1
CBL/SBC
15
EM0/C9
14
EM1/C8
13
FSYNC 7
GND
18
M0
21
M1
22
M2
23
MCK 5
SCK 6
SDATA 8
TRNPT/FC1
24
TXN
17
TXP
20
U11
V9
VD+
19
C1/FC0 3
12
PRO 2
RST
16
Q753
74HC4053
0X 12
0Y
2
0Z
5
1X 13
1Y
1
1Z
3
A11
B10
C9
GND
8
INH
6
VCC 16
VEE
7
XCOM 14
YCOM 15
ZCOM
4
AIL
4
AIR
5CL 47
DA 46
DI1D
62
DI1O
63
DI1S
1
DI2C
60
DI2D
57
DI2W
59
DO1C
51
DO1D 50
DO1W 49
DO2C
6
FOC
56
FOD
55
FOW
54
LOCK 48
VDDA1
3
VDDD6
52
VSSA1
2
VSSD10
53
VSSD11
58
VSSD12
61
VSSD13
64
MODEL NO
SE-U55/UE-155
P901
L752
BLM21A102F
L751
BLM21A102F
L502
BLM21B221SB
L501
BLM21B221SB
L503
BLM21B221SB
L901
BLM21P221SG
L753
BLM21A102F
L754
NCH-1470
L401
47UH
NCH-1479
F901
ICP-S2.3
D903
SFPJ63
D205
1SS352
D204
1SS352
D203
1SS352
D202
1SS352
D200
1SS352
D201
1SS352
D403
D901
SFPJ63
D902
SFPJ63
D401
1SS352
D402
Q905
RN1402
R511
0
R512
0
R513
0
R514
0
R515
0
R516
0
R517
0
R518
0
R519
0
R502
0
R504
0
R503
0
R407
75
R501
1K
R408
75
R714
0
R907
0
R914
0.22
(1W)
R207
1K
R206
1K
R205
1K
R204
1K
R202
2.2K
R203
2.2K
R201
4.7K
R200
10K
R905
10K
R902
1K
R901
10K
R913
330
R911
330
R753
0
R904
10K
R903
22K
R751
1M
R912
0
R404
2.2K
R403
2.2K
R402
2.2K
Q904
M51957B
CAP 5
GND
4
IN
2
NC1
1
NC2
3
NC3 8
OUT 6
VCC 7
C546
101J
C763
C764
180J
C543
105M
C512
473Z
C511
223Z
C510
102J
C509
331J
C752
104Z
C751
104Z
C540
101J
C539
101J
C538
101J
C534
101J
C535
101J
C536
101J
C537
101J
C530
101J
C502
102J
C503
101J
C505
101J
C506
102J
C507
101J
C508
102J
C501
101J
C504
102J
C413
472K
C417
104Z
C913
104Z
C414
104Z
C202
102J
C201
102J
C768
472K
C767
103K
C766
333K
C753
050C
C904
104Z
C756
104Z
C754
050C
C755
103K
C415
104Z
C765
104Z
C905
1/50
C410
0.1/50
C910
0.47/50
C901
10/16
C206
100/16
C205
10/50
C204
10/50
C203
10/50
C401
47/16
C903
470/6.3
D904
SLR-332MC
U401
TORX178A
U402
TOTX178
Q751
UDA1325
BCK
61
CLK
27
D+
8
D-
6
DA
57
GP0/BCKI
17
GP1/DI
13
GP2/DO
63
GP3/WSO
1
GP4/BCKO
2
GP5/WSI
15
P0.0
56
P0.1
58
P0.2
60
P0.3
62
P0.4
64
P0.5
3
P0.6
5
P0.7
7
P2.0
14
P2.1
16
P2.2
18
P2.3
20
P2.4
22
P2.5
23
P2.6
29
P2.7
30
SCL
19
SDA
21
SHTCB
4
VDDE
12
VDDI
9
VDDX
28
V
VR
VR
VSSA3
55
VSSE
11
VSSI
10
VSSX
24
WS
59
XTAL1A
54
XTAL1B
25
XTAL2A
53
XTAL2B
26
PSEN
31
X751
48M
D406
D405
UDZ3.3B
D404
C412
22/16
L402
NSRF-2046
Q754
TC7WU04
1
7
4
8
Q754
TC7WU04
6
2
Q754
TC7WU04
3
5
R411
680
R410
680
R409
680
R414
1.5K
R413
1.5K
R412
1.5K
01
7
+3.3D
+3.3A
+5A
RESET
DI
DO
BCKI
WSI
+5D
BCKO
128FS
DIT_C3
DIT_C2
DIT_C15
UP_LED
SRC_DA
SRC_LD
SRC_RST
CLK
RESET
WAV/DIR
BCKO
WSO
DO
R714
100
UDD
UJJ
BK1608LL241-T
C534-540
R511-519
ohm
544-546
101J
NO USE
101J
C530
UJJ
UDD
UJJ
UDD
(UDD=
)
C905
C543
UJJ
UDD
ohm
C502,504,506,508
R502-504
C512
C511
C510
C509
L501-503
C501,503,505,507
0
UJJ
UDD
NC
OUTPUT
OPTICAL
INPUT
OPTICAL
1.5A
7.5V
DC IN
COAXIAL
INPUT
OUTPUT
GND