Sony STR-DG720 Service Manual ▷ View online
STR-DG720
57
IC4001 SI-8050S-LF1101 (DCDC CONVERTER BOARD)
OVER
CURRENT
PROTECTOR
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
REGULATOR
+
–
–
+
–
–
RESET
VREF
COMPARATOR
ERROR AMP
OSC
1
VIN
2
SW OUT
3
GND
4
VOS
5
S.S
IC4100 SI-8033S (DCDC CONVERTER BOARD)
OVER
CURRENT
PROTECTOR
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
REGULATOR
ON/OFF
SOFT
START
+
–
–
+
–
–
VREF
COMPARATOR
ERROR AMP
RESET
OSC
1
VIN
2
SWOUT
3
GND
4
VOS
5
ON/OFF
STR-DG720
58
• IC Pin Function Descriptions
DIGITAL BOARD (1/3) IC1009 ADSP21266SKSTZ-2C (DSP EX3)
DIGITAL BOARD (1/3) IC1009 ADSP21266SKSTZ-2C (DSP EX3)
Pin No.
Pin Name
I/O
Description
1
VDDINT
—
Power supply pin (+1.2 V)
2
CLKCFG0
I
Clock frequency setting signal input 0 (Fixed at L)
3
CLKCFG1
I
Clock frequency setting signal input 1 (Fixed at H)
4
BOOTCFG0
I
Boot mode setting signal input 0 for DASP IC (Fixed at H)
5
BOOTCFG1
I
Boot mode setting signal input 1 for DASP IC (Fixed at H)
6
GND
—
Ground
7
VDDEXT
—
Power supply pin (+3.3 V)
8
GND
—
Ground
9
VDDINT
—
Power supply pin (+1.2 V)
10
GND
—
Ground
11
VDDINT
—
Power supply pin (+1.2 V)
12
GND
—
Ground
13
VDDINT
—
Power supply pin (+1.2 V)
14
GND
—
Ground
15
FLAG0
O
Interruption request signal output for SYSTEM CONTROL IC
16
FLAG1
O
PLL lock error signal output and data error fl ag signal output for SYSTEM CONTROL IC
17
AD7
I/O
Not used (Open)
18
GND
—
Ground
19
VDDINT
—
Power supply pin (+1.2 V)
20
GND
—
Ground
21
VDDEXT
—
Power supply pin (+3.3 V)
22
GND
—
Ground
23
VDDINT
—
Power supply pin (+1.2 V)
24 to 26
AD6 to AD4
I/O
Not used (Open)
27
VDDINT
—
Power supply pin (+1.2 V)
28
GND
—
Ground
29, 30
AD3, AD2
I/O
Not used (Open)
31
VDDEXT
—
Power supply pin (+3.3 V)
32
GND
—
Ground
33, 34
AD1, AD0
I/O
Not used (Open)
35
WR*
O
Not used (Open)
36, 37
VDDINT
—
Power supply pin (+1.2 V)
38
GND
—
Ground
39
RD
O
Not used (Open)
40
ALE
O
Not used (Open)
41 to 43
AD15 to AD13
I/O
Not used (Open)
44
GND
—
Ground
45
VDDEXT
—
Power supply pin (+3.3 V)
46
AD12
I/O
Not used (Open)
47
VDDINT
—
Power supply pin (+1.2 V)
48
GND
—
Ground
49 to 52
AD11 to AD8
I/O
Not used (Open)
53
A16 DAI_P1
O
Not used (Open)
54
VDDINT
—
Power supply pin (+1.2 V)
55
GND
—
Ground
56, 57
A17 DAI_P2, A18
DAI_P3
O
Not used (Open)
58
GND
—
Ground
59
VDDEXT
—
Power supply pin (+3.3 V)
60
VDDINT
—
Power supply pin (+1.2 V)
61
GND
—
Ground
62
PF_CE DAI_P4
I/O
Not used (Open)
63
SPI_MAS DAI_P5
O
Not used (Open)
64
DPSOA DAI_P6(L&R)
O
PCM audio signal output
STR-DG720
59
Pin No.
Pin Name
I/O
Description
65
DPSOB DAI_
P7(SL&SR)
O
PCM audio signal output
66
VDDINT
—
Power supply pin (+1.2 V)
67
GND
—
Ground
68
VDDINT
—
Power supply pin (+1.2 V)
69
GND
—
Ground
70
DPSOC DAI_
P8(C&SW)
O
PCM audio signal output
71
DPSOD DAI_
P9(SBL&SBR)
O
PCM audio signal output
72
VDDINT
—
Power supply pin (+1.2 V)
73
VDDEXT
—
Power supply pin (+3.3 V)
74
GND
—
Ground
75
VDDINT
—
Power supply pin (+1.2 V)
76
GND
—
Ground
77
DAI_P10 DPSOE
O
Not used (Open)
78
DAI_P11 DPSIA
I
PCM audio signal input
79
DAI_P12 DPSIB
I
PCM audio signal input
80
DAI_P13 DPSIC
I
PCM audio signal input
81
DAI_P14 DPSID
I
PCM audio signal input
82
DAI_P15 DPSIE
I
PCM audio signal input
83
VDDINT
—
Power supply pin (+1.2 V)
84, 85
GND
—
Ground
86
DAI_P16 DPDVLRCK
O
L/R sampling clock (44.1 kHz) signal output for PCM audio signal output
87
DAI_P17 DPDVBCK
O
Bit clock (2.8224 MHz) signal output for PCM audio signal output
88
DAI_P18 DPLRCK
I
L/R sampling clock (44.1 kHz) signal input from PCM audio signal input
89
DAI_P19 DPBCK
I
Bit clock (2.8224 MHz) signal input from PCM audio signal input
90
VDDINT
—
Power supply pin (+1.2 V)
91, 92
GND
—
Ground
93
VDDEXT
—
Power supply pin (+3.3 V)
94
DAI_P20 DPFSCK
I
Master clock signal input
95
GND
—
Ground
96
VDDINT
—
Power supply pin (+1.2 V)
97
FLAG2 NONAUDIO*
I
Digital input signal select control signal input
98
FLAG3 SF_CE*
O
Not used (Open)
99
VDDINT
—
Power supply pin (+1.2 V)
100
GND
—
Ground
101
VDDINT
—
Power supply pin (+1.2 V)
102
GND
—
Ground
103
VDDINT
—
Power supply pin (+1.2 V)
104
GND
—
Ground
105
VDDINT
—
Power supply pin (+1.2 V)
106
GND
—
Ground
107, 108
VDDINT
—
Power supply pin (+1.2 V)
109
GND
—
Ground
110
VDDINT
—
Power supply pin (+1.2 V)
111
GND
—
Ground
112
VDDINT
—
Power supply pin (+1.2 V)
113
GND
—
Ground
114
VDDINT
—
Power supply pin (+1.2 V)
115
GND
—
Ground
116
VDDEXT
—
Power supply pin (+3.3 V)
117
GND
—
Ground
118
VDDINT
—
Power supply pin (+1.2 V)
119
GND
—
Ground
120
VDDINT
—
Power supply pin (+1.2 V)
STR-DG720
60
Pin No.
Pin Name
I/O
Description
121
RESET
I
System reset signal input from SYSTEM CONTROL IC
122
SPIDS
I
Serial data latch pulse signal input from SYSTEM CONTROL IC
123
GND
—
Ground
124
VDDINT
—
Power supply pin (+1.2 V)
125
SPICLK
I
Serial data transfer clock signal input from SYSTEM CONTROL IC
126
MISO
O
Serial data output for SYSTEM CONTROL IC
127
MOSI
I
Serial data input from SYSTEM CONTROL IC
128
GND
—
Ground
129
VDDINT
—
Power supply pin (+1.2 V)
130
VDDEXT
—
Power supply pin (+3.3 V)
131
AVDD
—
Power supply pin (+1.2 V)
132
AVSS
—
Ground
133
GND
—
Ground
134
CLKOUT
—
Not used (Open)
135
EMU
—
Not used (Open)
136
TDO
—
Not used (Open)
137
TDI
—
Not used (Fixed at L)
138
TRST
—
Not used (Fixed at L)
139
TCK
—
Not used (Fixed at L)
140
TMS
—
Not used (Fixed at L)
141
GND
—
Ground
142
CLKIN
I
System clock input (25 MHz)
143
XTAL
O
System clock output (25 MHz)
144
VDDEXT
—
Power supply pin (+3.3 V)
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