Sharp SD-AT50H Service Manual page 32

SD-AT50H
A
B
R150
150
C
3
2
R138
47K
1
+B
D
R410
1K
R411
1K
E
F
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 42.
1
FM SIGNAL
IC109
TC7WU04U
DUAL2-INPUT
NAND GATE
+B
+B
C132
1
+B
C153
0.1
GND 2Y
4 5
2A 3A
3 6
C133
3Y 1Y
2 7
0.1
1A VCC
1 8
+B
R146 47K
R147 47K
R129
+B
+B
C113
1
+B
R131
10K
R133
10K
GND(A)
GND(A)
GND(µ-COM)
C122
0.001
+B
KEY_OUT
DVD_POWER
DVD_ON
22P(CH)
C167
180P
DSP_RESET
R122 4.7K
R123 4.7K
R124 4.7K
AUDATA1
R125
AUDATA0 R126
LRCK
SCLK R127
MCLK R128
C102
+B
C140
R101 10K
R102 3.3K
/EMWR
R103 3.3K
/EMOE
R104 3.3K _DSP_SCDIN
+B
2
Figure 32 SCHEMATIC DIAGRAM (3/11)
P30 1 - E
TO MAIN PWB
CN501A
25
24 22 20 18 16 14
23 21
25 19 17 15 13
+B
+B
+B
C111
2.2/50
C110
33 32 31 30 29 28 27 26 25 24 23
0.1
RIN
AVDD
4.7
PVDD VREFH
34 22
R
AVSS
35 21
R130
PVSS DZF2/OVF
36 20
18K
RX4 CAD0/CSN
37 19
SLAVE SCL/CCLK
38 18
RX3 SDA/CDTI
39 17
R149
TST CAD1/CDTO
40 16
470
RX2 INT1
41 15
I2C INT0
42 14
C120
RX1 SDTI3
43 13
0.1
PDN SDTI2
44 12
XTO SDTI1
C115
1 2 3 4 5 6 7 8 9 10 11
0.1
C164
10/16
C149
10/16 C112 C145
1 0.1
+B
C123
0.001
+B
L103
C124
_DSP_SCDOUT
2.2µH
1 VCC
1
14
DSP_SCDOUT _DSP_INTREQ
2
13
DSP_INTREQ
DSP_SCDIN
C155
3 12
0.1 _DSP_SCDIN DSP_ABOOT
4
11
4 GND 2Y 5
DSP_CS
5 10
2A 3A
3 6 _DSP_CS DSP_SCCLK
6
9
2 3Y 1Y 7
_DSP_SCCLK
GND
7 8
+B
1A VCC
1 8
C156 0.1
C127 1
R148 1M
XL101
12.288 MHz
C125 C126
22P(CH)
EX_CLK
R120
33K
C107 0.01
ZD101
KDZ2.7V
C106 470P
R121
330
R132
C142
470
0.1
LRCK
AUDATA2
R118
39 38 37 36 35 34 33 32 31 30 29
10K
SCLK
330
40 28
AUDATA1
330 SDATA1
41 AUDATA0 27
LRCK
SCLKN2
28
LRCLK
42 LRCLKN1 26
100 SCLK
SDATAN2
27 SCLKN1
SCLK
43 25
100
MCLK DGND3
44 24
C103 1
1
VD3
1 VD1
IC101 23
SDATA1
DGND1 SDATAN1
2 22
0.1 CS493264
/EXTMEM
EXTMEM
XMT958
3 21
DSP
_DSP_INTREQ
WR INTREQ
4
20
_DSP_SCDOUT
SCDOUT
RD
5 19
_DSP_CS
SCDIN CS
6
18
SCCLK
7 8 9 10 11 12 13 14 15 16 17
C163
100/10
+B
3 4
– 32 –
FFC501
1
4 2
12 10 8 6
11 9 5 1
7 3
CN501B
+B
+B
D103
R141
KDS160
1K
+5V(A)
+B
3
C109
C148
1 C166
C144
10/16
3.3/16
0.1
GND(A)
OVF IC110
SI3050LUS
SCL
VOLTAGE
C165
SDA
REGULATOR
0.001
AUDATA2
AUDATA1
R134 +B
4.7
REGULATOR
GND(D)
R139 D104
1K KDS160
+B
+2.5V(D)
+B 3
C151
C138
10/16
0.1
R140
D105
1K
KDS160
+3.3V(D)
3
+B
C152
C154
10/16
0.1
+B 3.3 V REGULATOR
C161
0.001
GND(D)
+B
+B
R117 10K
R116 3.3K
R115 3.3K
R114 3.3K
+B
+B
5
P31 12 - D
FROM MAIN PWB
CNS507
CHASSIS
1 2 3
CNP507
C170
0.001
+B
+B
+B
1
2
C117
1
VOLTAGE
IC111
IX0446AW
1 +B
C137
2
1
IC112
SI3033LUS
+B
1
C118
2
1
6