A
B
C
D
E
F
G
H
1
2
3
4
5
6
DP-U50
E-27/J-25
■
BLOCK DIAGRAM
E-26/J-24
D-RST
XL401
XL403
IC418A
IC418B
IC418C
IC418D
XL402
PC IN
AUX 1 IN
AUX 2 IN
OPT OUT
COAX IN
OPT IN
AUX 1
OPT IN
PC
L
R
L
R
L
R
IC445A
IC445B
IC478A
IC478B
IC478C
IC478D
IC474A
LC75342M
INPUT
SELECTOR
USB
DIGIT
AL
ANALOG
143
146
143
119
148
118
175
L
R
LOOP BACK
IC458A
IC458B
IC454A
IC454B
L
R
L
R
Q410
Q411
IC473A
IC473B
IC470A
IC470B
IC471A
IC471B
IC6A
IC6B
IC7A
IC7B
Q1
Q2
PHONES
SUB
WOOFER
IC8
Q19, 20
+
A-MUTE
S-MUTE
IC440
AD1854
DAC
PAO0
USBDAC0
PRE OUT
L
R
SF MUTE
MIX MUTE
VOLUME
A-MUTE
A-MUTE
9
10
21
IC477
CS5360
A/D
CONVERTER
106
39
165
L401
6
7
DATA BUS
ADDRESS BUS
4M FLASH ROM
SRAM
A0-18
A1-18
A0-16
A0-5
A1-5
D0-15
D0-15
D0-7
D0-15
D0-7
IC438
IC447
PAO9
PAO3
PAI8
PAO4
PAO5
PAO6
169
170
171
PAI4
PAI5
PAI6
PAI7
SDOB3
SDOB3
PAI4
PAI5
PAI6
SDOA0
SDOA1
SDOA2
SDOA0
SDOA1
SDOA2
PAI4
PAI5
PAI6
38
37
36
L/R
LS/RS
C/LFE
4
3
157
62
61
60
59
127
156
154
128
5
42
41
40
14
48
35
IC417
YSS928
PAI4
PAI5
PAI6
107
108
109
DC-ON
RESET
AC-DET(+12S)
+5D-SUB
4M
DRAM
IC432
IC413
+3.3V
+5M
IC406
+2.5V
IC412
+3.3S
+5S1
L/R
LS/RS
C/LFE
L/R
LS/RS
C/LFE
AC3D3
POWER
DETECT/
RESET
Q416, 419
174
113
168
112
30
31
29
34
28
32
USBINT
USBSOF
SUSPN
USBCS
RWUPN
USBRST
26
25
104
45
105
102
GARST
(USBRST)
12MHz
IC430
USS-820DT
USB DEVICE
CONTROLLER
CPUCLK
EACS
DMVDD
EAINT
CPUCLK
GACS
DMVDD
FIFOIRQ
83
40
112
28
7MHz
CPU
IC436
HD6417014
D16
D8
+ 12S (AC-DET)
D14
Q24
F1
-21V
+15A
-15A
+9V
IC12
Q17
Q18
IC11
+5D-SW (+5M)
D15
IC10
+5A
+5D-SUB
IC3
RE
RE
BE
BE
BL
OR
OR
D9
REM
A/D1
P-SW
E-A/E-B
U301
KEY
POWER
SW
VOLUME
85
106 - 108, 110
91
99
FL
V301
FL DRIVER
IC301
MUTE CONTROL
POWER
PS
86, 87
89
92
42, 49 -51
(PROTECTION)
24
84
FL1
FL2
G
G
G
G
G
D305
-21V
55
FUNCTION LED
D301-304
68-71
LED-PC, A1, A2, TU
SW309
SW310
SW301-308
61-64
REMOTE
SENSOR
XL404
11.2896MHz
27
16
17
12
13
24.576MHZ
17
16
13
14
RDB
RDB
WRL
WRL
WRL
WRH
WRH
36
38
34
WRL
WRH
36 35
11
29
FLASHCS
SRAMCS
26
22
41
44
RYBY
88
15
36
37
35
38
5
33
32
34
17-20
11-14
IC475
LC27287B
EMBEDDED
ARRAY
RDB
RDB
24
28
RDB
MAIN DSP
SUB DSP
SEL
CI0
CI2
PAI14
PAI13
SELB
YO
PAO10
DMNS
DPLS
IRQN (USBINT)
SOFN (USBSOF)
SUSPN
IDCSN (USBCS)
RWUPN
RESET (USBRST)
DIT
PAI3
DAC
IC439
AD1854
Q417
Q418
IC474B
LC75342M
9
22
5
26
Q424
Q427
Q423
Q428
USBD
A
C
0
PA
O
0
PAO11
PAI15
DIR
DOLBY DIGITAL
DTS
DECODER
PAO9
PAI8
PAO3
PAO4
PAO5
PAO6
SEL
PAI7
PAI4
PAI5
PAI6
SEL
VIRTUAL 3D
BASS
RE-DIRECTION
SIGNAL
DETECTOR
16IN 12OUT
PATCH BAY
1
7
2
6
1
7
8
14
3
5
10
12
IC418E
1
7
2
6
1
7
2
3
5
6
1
7
2
3
5
6
1
7
2
6
1
7
2
6
2
8
4
6
1
7
3
5
8
3
YE
YE
72
74
1
2
/DIRINT
/A
C3MUTE
/NONPCM
31 32 43
147
141
138
D-RST
30
152
46
47
3
4
D-RST
+5A
18
PAO7
40
CAPTIN
172
SERIAL I/F
SZ
SERIAL I/F
CCB
SERIAL I/F
SX
150-152
134-136
101-105
159-164
120-123
24
D-RST
24
CLOCK
MUX
PLL
DFS CONTROL
XFS CONTROL
SFS CONTROL
CFS CONTROL
91, 92, 94
137, 138, 140
SFS CONTROL
DFS CONTROL
+5S1
49-51, 53, 54
XFS CONTR
OL
SFS CONTROL
149-151
28, 29
7, 8, 12
1, 2, 30
+3.3S
+5S1
+3.3S
27
16
17
12
13
3-5
2, 25, 26
3-5
2, 25, 26
SERIAL CONTROL
SERIAL CONTROL
SERIAL CONTROL
+2.5V
+3.3V
+5A
+5A
IC401
DUTY CORRECT
I/O PORT
SERIAL CONTROL
Q30, 31
POW
POW
POW
GR
BL
Q420
Q421
Q26-29
USB
P/S
CONV
USB L/R
USB RL/RR
USBC/LFE
TXFIFO
DATA BUS
P
AI0
P
AI1
P
AI2
DUAL PORT SRAM
RXFIFO
USB
S/P CONV
DATA BUS
See page E-39/J-37
(OPE)
See page E-38/J-36
(DSP)
See page E-39/J-37
(MAIN)