Block Diagram - Yamaha AP-U70 Service Manual

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I

BLOCK DIAGRAM

1
+3.3S IC412 +5S1
XL402
12MHz
3
USB DEVICE
6 CONTROLLER
L401 DMNS
USB
7
DPLS
USS-820DT
IC418A IC418B
2
COAX IN
PC
IC418C
OPT IN
SIGNAL
DETECTOR
IC418E
IC418D
AUX 1
OPT IN
DUTY CORRECT
IC401
OPT OUT
3
IC445A
L 2 1
11-14 10
L
INPUT
PC IN
SELECTOR
R
6 7
R 17-20 21
IC474A
IC445B
LC75342M
L
AUX 1 IN
R
1, 2, 30
L
AUX 2 IN
R
4
SERIAL CONTROL
LOOP BACK
5
See page E-38/J-36
(DSP)
6
C
XL404
+3.3S +5S1 +3.3S
11.2896MHz
4 36 35 46 47 32
DATA BUS
30
IRQN (USBINT)
DATA BUS
31
SOFN (USBSOF)
29
SUSPN
IC430 34 TXFIFO RXFIFO
IDCSN (USBCS)
28 DUAL PORT SRAM
RWUPN
32
RESET (USBRST)
USB
S/P CONV
143 CI0 USB
P/S
CONV
146 CI2
SEL
143 SELB
148 YO
118 PAI13
119 PAI14
DIT PAO11
PAI15
175 PAO10
EMBEDDED
ARRAY 16IN 12OUT
D-RST +5A PATCH BAY
IC475
LC27287B
IC478A 18
5 7 106 PAI3
17 9
A/D
IC478B CONVERTER
3 1
16
IC477
IC478C
CS5360
10 8
13
IC478D
12 14
14
PLL
7, 8, 12
DFS CONTROL 134-136
CFS CONTROL
137, 138, 140
CLOCK
MUX
SFS CONTROL
91, 92, 94
150-152
SERIAL I/F SERIAL I/F
CCB SZ
SERIAL CONTROL
SERIAL CONTROL
DFS CONTROL
D E
ADDRESS BUS
XL403
7MHz
34
72 74 38 36 24
33 34
USBINT
26
USBSOF
25
SUSPN
104
USBCS
45
RWUPN
105
GARST USBRST
102 CPU
36
(USBRST)
CPUCLK CPUCLK
37 83
GACS EACS
35
40
DMVDD DMVDD
38 IC436
112
FIFOIRQ EAINT HD6417014
5
28
106 - 108, 110
40 CAPTIN
172
PAO7
PAO9
31 32 43
30
D-RST
PAI8
XL401
24.576MHZ
1 2 152
MAIN DSP
DOLBY DIGITAL
PAO9
174
14 DTS
DIR
DECODER
113 PAI8
48
PAO3
35
168 PAO3
101-105 XFS CONTROL 49-51, 53, 54
SUB DSP
PAO4 169 PAO4
42 L/R
VIRTUAL 3D
PAO5 170 PAO5
41 LS/RS
SEL BASS
PAO6 171 PAO6 40
C/LFE
RE-DIRECTION
PAI7 PAI7 5
112
SEL
AC3D3
IC417
YSS928
PAI4 107 PAI4
PAI5 108 PAI5
PAI6 109 PAI6
SERIAL I/F
120-123 SERIAL CONTROL
149-151
SX
28, 29
SFS CONTROL
D-RST
+5A
SF MUTE
IC458A
24
PAO0
16 2 1 L
DAC
27 Q417
17 3
IC439
AD1854
3-5
7 R
12 5
Q418
13 6
SFS CONTROL
2, 25, 26
IC458B
D-RST +5A
MIX MUTE
IC454A
24
USBDAC0 1 L
16 2
27 Q410
17 3
DAC
IC440
3-5
R
AD1854 12 5 7
Q411
13 6
2, 25, 26
IC454B
E-26/J-24
F
DATA BUS
DC-ON AC-DET(+12S)
POWER
DETECT/
RESET
+5D-SUB
RESET
Q416, 419 11
28
+5S1 4M FLASH ROM
IC438
15 26
RYBY
84 88
FLASHCS
41
SRAMCS
44
REM REMOTE
85 U301
SENSOR
A/D1
91
KEY SW301-308
P-SW POWER
99 SW310
SW
E-A/E-B
86, 87
PS
92
SW309
PRT DC
93 PROTECTION VOLUME
PRT I
94
MUTE CONTROL
1 SP RELAY
89 POWER RELAY
FL
V301
61-64 FL DRIVER
42, 49 -51
IC301
55
D305
4M
DRAM
-21V
IC432
FL2 FL1
FUNCTION LED
D301-304
+5A IC10
D15
68-71 LED-PC, A1, A2, TU
I/O PORT
G
L/R 38 SDOA0
LS/RS 37 SDOA1
+5D-SW (+5M) IC11
D16
C/LFE 36 SDOA2
G
+15V Q17
+9V IC12 D8
PAI4
62 PAI4
G
PAI5
61 PAI5
60 PAI6
PAI6
59 SDOB3
Q18
-15V
+B
127
SDOB3
D9
156
PAI4
154
PAI5
G
128
PAI6
-21V Q24
L/R 4 SDOA0
3 SDOA1
LS/RS
-B
157 SDOA2
C/LFE
POW
+ 12S (AC-DET)
+5D-SUB IC3
+2.5V
+3.3V
G
A-MUTE
IC470A
1
2
Q420 L
REC OUT
SP-ON
7
6
Q421 R
IC470B
POWER AMP
VOLUME
A-MUTE
S-MUTE IC9 : STK402-030
IC473A IC471A IC6A
2 1 Q424 2 1 4 2 1
9 5 Q15
Q427
IC474B
LC75342M
Q423 7 8 15
6 7 6 6
22 26 Q16
Q428
IC473B IC471B
IC6B
IC8
3 8
+
IC7A
3 1
5 7
IC7B
G H
AP-U70
29
24
SRAM
IC447
22
+5M
+3.3V IC413
IC406
+2.5V
See page E-39/J-37
(OPE)
POW
YE
YE
Q30, 31
OR
See page E-39/J-37
OR
(MAIN)
RY2
F1
RE
BE
BL
BE
RE
D14
Q5
T1
D10
RY1
Q11, 12
SPEAKER
6
L
7
MAIN
10
R
11
S-MUTE
SUB
Q19, 20
WOOFER
A-MUTE
Q1
PHONES
Q2
E-27/J-25