UWL-1
SERVICE MANUAL
SERVICE MANUAL
WIRELESS USB AUDIO TRANSPORT
Silver models
UTX-1
RX-1
MODEL
UWL-1
100-240V AC, 50/60Hz
SUDC
SUPB
Ref. No. 3933
062006
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK
ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
UWL-1
EXPLODED VIEW
A002
A051
A005
U001
A009
A004
A003
A006
A008
A003
A001
A007
UWL-1
SCHEMATIC DIAGRAMS 1
-1
U001 NAAR-8909
A
1
2
3
4
5
BCD
SDTO
LRCK
BCLK
TEST1
TEST2
APO_EN
:Open Wire
:Signal Direction
P_RST
MCLK
P802
SSP_CS
SSP_CS
A_MUTE
NC
Discription
SYNC
SSP_CCLK
SSP_SDO
SSP_SDO
SSP_CS
SSP_CCLK
SDTO
LRCK
BCLK
MCLK
P_RST
BCLK
LRCK
SDTO
MCLK
NC
NC
For RX-N7X
A_MUTE
A_MUTE
For RX-1
I2S
OUT
SDTO
BCLK
LRCK
P_RST
P801
P_RST
P_PDN
P_PDN
APO_EN
MCLK
+5V_IA8
A_MUTE
TEST
+3.3V_DIT
Auto
Power
Mode
Setting
Default="disable"
+3.3V_IA8
+3.3V_IA8
+3.3V
SYNC
+3.3V
+5V_DA
+5V_DA
+3.3V
+5V_DA
+5V_DA
-9V_A
-9V_A
+5V_IA8
APO_EN
5V
SPI
CTRL
R811
330
D
NOTE
R712 10
A
R713
220
A
R705
330
D
R703 0
R702
47K
C704 104Z
D
D
D
R714
220
R722
220
R807
15K
D
D
R909
100
P
C915 221J C914 221J
D906
CRS08
D905 CRS08
D904
CRS08
D903 CRS08
Q904D
89
Q904E
10
11
R908
2.2K
R907 2.2K
D902
1SS352
Q904F
12
13
D901
1SS352
A
C715
104Z
C716
220/10(VX)
R910
100
R911
4.7K
Q904B
43
R906
10K
Q904C
65
C909
102J
R813
330
Q906
SSM3K12T
3
1
2
D
C709
100/25(VX)
C802 104Z
C920
105K
C918 105K
C912
220/6.3
C917
105K
D907
RD5.6SB
Q904A
TC74VHCU04FT
2
7
1
14
C913 105K
C8RXAHI24-6
48
REQ_CPU
46
INT1
44
GPIO2
42
GPIO4
40
GPIO5
38
GPIO21
36
DGND
34
GPIO24
32
MUTE_OUT
30
CCH0
28
SDI_OUT
26
BCK_OUT
25
GPIO6
27
LRCK_OUT
29
DGND
31
GPIO26
33
GPIO25
35
GPIO23
37
GPIO22
39
GPIO20
41
DGND
43
GPIO3
45
INT0
47
GPIO1
C919
47/35
R812
220
C706
102J
C717
102J
Q702
WM8720
19
DVDD
20
DGND
4
ML/I2S
5
MC/IWL
6
MD/DM
7
RSTB
18
MODE
1
PWDN
17
MUTE
2
SCKI
14
BCKIN
15
DIN
16
LRCIN
13
CAP
3
TEST
8
ZERO
9
VOUTR
12
VOUTL
10
AGND
11
AVDD
R814
330
R815
330
R816
330
A
C711
102J
R723
220
R709
47
R708
47
R707
47
R706
47
D
C8RXAHI24-6
24
AOL
22
AORHP
20
AOLHP
18
GPIO16
16
GPIO17
14
SDA_CPU
12
VCCIO
10
NCS_CPU
8
DGND
6
GPIO11
4
SYNC
2
GPIO8
1
VCCIO
3
PGND
5
GPIO10
7
GPIO12
9
SYSCLK
11
PGND
13
SCLK_CPU
15
GPIO14
17
GPIO7
19
UGND
21
UGND
23
AOR
L905
BLM21PG221SN1
R903
10
D
D
R804 15K
R806 15K
R805 15K(NC)
D
R801 15K
R902
10
C801
47/35(NC)
R802
15K(NC)
R803 15K(NC)
L906
BLM21PG221SN1
D
C803
104Z
A
DAGND REFGND
C916
105K
Q905
SSM3J13T
2
1
3
Q701
CS8406
1
SDA/CDOUT
2
AD0/CS
3
AD2
4
RXP
5
TEST
6
VD
7
TEST
8
TEST
9
RST
10
TEST
11
TEST
12
ILRCK
13
ISCLK
14
SDIN
15
TCBL
16
TEST
17
TEST
18
TEST
19
INT
20
U
21
OMCK
22
GND
23
VL
24
H/S
25
TXN
26
TXP
27
AD1/CDIN
28
SCL/CCLK
D
C705
104Z
D
C703 220/6.3
R724
0
R725
0
R726
0
D
R727
0
C805 104Z
R704
47K
R701 47
UWL-1
SCHEMATIC DIAGRAMS
1-2
U001 NAAR-8909
A
1
2
3
4
5
BCD
A_MUTE
n
DAC_Lch
2.8Vp-p
Lch
Rch
LINE OUT
NO
USE
P_PDN
P_PDN
-9V_A
-9V_A
Rch
Lch
Power Input
+5V_A
+3.3V
+5V_A
STBY_LED
STBY_TRG
CH/ID SW
STBY_TRG
CH/ID_TRG
SYNC
SYNC
+5V
+5V_IA8
+5V_DA
A
+3.3V
V_DA
-9V_A
SYNC
STBY/ID_LED
+5V
+5V
+5V
STBY_SW
SW
CH/ID_SW
+3.3V
+5V_IA8
(GREEN)
(RED)
SYNC LED
STANBY/ON LED
+5V
2.5A
+5V
DAC_Rch
2.5V
JST1321-001
STATUS LED
OPT OUT
:Open Wire
:Signal Direction
Discription
NOTE
R419
100K
R420
100K
R403
330K
R404
330K
R410
10
D
C702
104Z
C402
102J
C401
271K
REFGND
P701
5
S
3
IN
2
V
1
GND
4
S
R405
100
R406
100
REFGND
C409
47/50(VX)
C410
47/50(VX)
C406
47/50(VX)
R417
1.8K
R415
1.8K
R418
1.8K
R416
1.8K
C407
182J
C408
182J
R411 10K
R412 10K
Q403:B
NJM4580M-D
Val
5
6
7
8
Q403:A
Val
2
3
4
1
C709
100/25(VX)
C710
104J(NC)
C405
47/50(VX)
C912
220/6.3
C411
152J
C412
152J
P
C416
102J(NC)
Q702
WM8720
13
CAP
3
TEST
8
ZERO
9
VOUTR
12
VOUTL
10
AGND
11
AVDD
A
R711 10
C714
220/10(VX)
C415
102J(NC)
P401
3
2
1
PP
C911 104Z
C910
47/35
P
R904 15K
Q903
SSM3J13T
DD
D
AHI24-6
U
U
1
VCCIO
3
PGND
5
GPIO10
7
GPIO12
9
SYSCLK
11
PGND
13
SCLK_CPU
15
GPIO14
17
GPIO7
19
UGND
21
UGND
23
AOR
R818 47
L701
NCH1479
L905
BLM21PG221SN1
Q402
RN1441
Q401
RN1441
A
C413
102J(NC)
R407
680
R408
680
R409
10
C908 104Z
P
C905 104Z
C907
220/6.3
Q901
S-812C33
3
O
1
G
2
I
PP
P901
MJC30(30-030-020)
1
3
2
S
L901
DLW5BTN102SQ2
1
43
2
P
L903
BLM21PG221SN1
C902 104Z
C901
470/10
D
AP
R742
220
DD
C729
104Z
S701
C728
104Z
S702
C730 104Z
D
R738
10K
R739
10K
R743
220
P
L902
NFE31PT471E1F9
D
C804
100/6.3Ta
D
D702
SEC1403C
D701
SEC1203C
Q708
RN1402
Q707
RN1402
D
C726 104Z
R737 220
R736 330
F901
046702.5NR
DAGND REFGND
R721
470K
R716
470
R715
470
R718
560
D
R717
560
D
D
R719
10K
Q703
RN1402
R720
1.0K
C708
102J(NC)
Q704
RN2401
D703
1SS352
D
C707 470/10
R413
12K
R414 12K
C404
220/25(VX)
C403
330/16(VX)
C701
220/6.3
C805 104Z
R905 150K
Q902
RN1401
UWL-1
PACKING PROCEDURE - 1
A002 CARTON (IN)
USB Transmitter (UTX-1)
Miniplug-to-RCA audio cable (1 m)
Receiver (RX-1)
AC adapter
Plug type varies from
country to country.
CD-ROM (UWL Assistant)
Optical digital audio cable
(JJ and PB model only)
Dedicated DC power cable (1 m)
(JJ and PB model only)
This cable is for connecting the Receiver to an
Onkyo component with a DC output. Don't use it
for any other purpose.
USB extension cable
A017 qust sheet JJ
A018 directory JJ
A019 wrnty card DC
A802 INS MANUAL
A810 INST SHEET
A811 INST SHEET DC
A813 INST SHEET
A815 INST SHEET
A020 LABEL (MUSEN) JJ
A805 CORD AS NOP-1P100
A812 ACCESSORY CD-ROM
A801 P ADP
A051+A009 TRANSMITTER
A806 CORD AS
A814 CORD AS
A804 CORD AS
A001 PAD
A019 wrnty card JJ