Schematic Diagram - Digital Audio Board (1/4) - Sony STR-KM2 Service Manual

5-8. SCHEMATIC DIAGRAM – DIGITAL AUDIO Board (1/4) –
1 2 3
DIGITAL AUDIO BOARD (1/4)
A
B
DIGITAL AUDIO
BOARD
1
(2/4) 1
(Page 22)
C
A2001
(CHASSIS)
KM3
JL2848
HDMI_PCONT 1
JL2847
TX_INT 2
JL2846
RX_INT 3
D
JL2845
TX_5V_PWR 4
JL2844 R2983
ARC_SPDIF 5
JL2843 C2609
GND 6
JL2842 FB2031
MCK 7
C2619
GND 8
HDMI RE
JL2840 FB2032
BCK 9
BOARD JL2839 R2618
LRCK 10
A JL2838
(2/2)
SD3 11
E
JL2837 RB2103
SD2 12
CN3512
JL2836 1k
SD1 13
(Page 33)
JL2835
SD0 14
JL2834
HDMI_SPDIF 15
R2727
JL2833
MUTE 16
JL2832
TX_RST 17
JL2831 R2726
HDMI_SCL 18
JL2830 R2725
HDMI_SDA 19
F
CL2213
RX_RST 20
CL2214 R2626 100
CEC 21
CN2508
21P
D2729
DZ2J04300L
DIGITAL AUDIO
BOARD
2
2
(3/4)
3
G
(Page 23)
H
I
J
K
STR-KM2/KM3
• See page 45 for IC Block Diagrams.
4 5 6
JL2808
C2910 10
0.6 3.3 3.3 1.1
44 43 42 41
HDMI_PCONT
C2816 0.1
HDMI_TX_INT
3.3
HDMI_RX_INT 45 VDD_EXT
C2817 0.1
HDMI_TX5V 46 NC
RESET_MAIN
3.3
100 ARC_SPDIF 47 RESET_MAIN
1.1
1000p 48 VDD_INT
R2615
SI 1.1
560
MCK 49 UART_OUT
R2834 10k
UART_IN
3.3
50 UART_IN
1000p
R2617
R2835 10k 2.4
470
680 BCK 51 LED
2.2k LRCK 52 NC
53 NC
SD3
SD2 54 NC
SD1 55 NC
C2818 0.1
SD0 56 NC
3.3
HDMI_SPDIF 57 VDD_EXT
330 58 NC
HDMI_TX_RESET 59 NC
47 HDMI_SCL 60 NC
C2819 0.1
47 HDMI_SDA 61 NC
1.1
HDMI_RX_RESET 62 VDD_INT
CEC 63 NC
C2820 0.1
64 NC
1.1
65 VDD_INT
66 NC
C2821 0.1
67 NC
1.1
FLGND
68 VDD_INT
69 NC
70 WDTRSTO
C2822 0.1
71 NC
3.3
72 VDD_EXT
SL/SR_OUT R2824 220
1.7
73 SL/SR_OUT
SL/SR_IN R2825
22 0
74 SL/SR_IN
BCLK_IN R2826 22 1.7
75 BCLK_IN
76 OPTION_L/OPTION_R_OUT
C2823 0.1
77 FRONTHI_L/R_OUT
1.1
78 VDD_INT
79 NC
80 NC
81 NC
82 NC
C2824 0.1
83 NC
3.3
84 VDD_EXT
1.1
85 VDD_INT
C2825 0.1
1.7
86 L/R_OUT
L/R_OUT R2829 220 SBL/SBR_OUT
87 MID/SW2_OUT
SBL/SBR_OUT R2831 220 1.7
88
89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132
1.1 3.3 3.3 1.1 1.1
• See page 52 for IC Pin Function Descriptions.
7 8 9 10
1
X2800
25MHz
2
R2854
220
C2842
R2856 7p
1M
1.1 0 0 1.1 1.1 1.1 3.3 1.7 1.7 1.1 0 0
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13
IC2801
ADSST-AVR-3025
IC2801
DSP
0 1.1 1.7 1.7 1.7 1.7 0.6 1.1 1.1 3.3 1.1 1.1 0 0 3.3 1.1 1.1 3.3 1.1 0 3.3
R2847
330
21 21
11 12 13
DSP+3.3V
R2861
10k
GND
3.3 3.3 0 1.1
12 11 10 9 8 7 6 5 4 3 2 1
R2943
1k
C2859 0.1
VDD_INT 176
1.1
SDCAS 175
TMS 174
R2876 1k
RESET 173
3.3
C2860 0.1
SDRAS 172
R2875
SDWE 171
100k
C2861 0.1
DATA15 170
VDD_INT 169
1.1
DATA13 168
DATA14 167
DATA12 166
DATA11 165 R2053 4.7k
TCK 164
0
DATA10 163
DATA9 162
DATA8 161 C2862 0.1
VDD_EXT 160
3.3
SDCLK 159
TDI 158
C2863 0.1
DATA7 157
VDD_INT 156
1.1
DATA6 155
C2856 0.1
DATA5 154
VDD_EXT 153
3.3
DATA4 152
TDO 151
DATA3 150
DATA2 149
DATA1 148
DATA0 147
EMU 146
MLBSO 145 R2853 4.7k
TRST 144
C2864 0.1
0.4
VDD_INT 143
1.1
MLBSIG 142
VDD_EXT 141
3.3 C2857 0.1
MLBDO 140
MLBDAT 139
FLAG3 138
R2866 10k
MLBCLK 137
R2872 22 DSP_NONAU
FLAG2 136
R2867 10k
0 DSP_ERROR
FLAG1 135
R2868 2.2k
3.3
IRQ/GPIO 134
0
VDD_INT 133
1.1 C2858 0.1
1.1 3.3 1.1
STR-KM2/KM3
14 15 16 17
DIGITAL AUDIO
BOARD
3
4 (2/4), (3/4)
(Page 22),
(Page 23)
DSP_RST
TCK
IC2034
S-80929CNMC-G8ZT2G
TRST IC2034
IC B/D
RESET SIGNAL GENERATOR
R2283
10k
0
1 OUT CD 5
3.3
2 VDD
C2198
3.3
3 VSS
NC 4 1000p
C2914
0.1
DIGITAL AUDIO
6
BOARD
4
DSP_INT
(2/4)
(Page 22)
7
DIGITAL AUDIO
8
BOARD
5
9
(3/4)
10
11 (Page 23)