Read Sharp AM-300 (serv.man4) Service Manual online
AM-300DE
6 – 2
2. Main Controller Block (1b/10)
I
E
F
G
H
E
F
G
H
I
6
5
4
3
2
1
VBAT
C2
N.M.
DG
8
4
7
6
5
1
3 2
SIO
SCK
CS
INT
XIN XOUT
VDD
VSS
IC2
N.M.
RTCXI
RTCXO
R4
N.M.
+3.3V
DG
R8
N.M.
RTC_CLK
RTC_DATA
RTC_CE
SDRAM_DATA[15:0]
DG
R6
4.7K
SDRAM_DATA6
SDRAM_DATA13
SDRAM_DATA12
SDRAM_DATA4
SDRAM_DATA10
SDRAM_DATA3
SDRAM_DATA9
SDRAM_DATA7
SDRAM_DATA8
SDRAM_DATA11
SDRAM_DATA5
SDRAM_DATA15
SDRAM_DATA1
SDRAM_DATA0
SDRAM_DATA14
SDRAM_DATA2
/ROM_CS
SDRAM_DQMA0
/SDRAM_CS0
SDRAM_DQMA1
SDRAM_CLK
R
100
BR2
33 x4
BR4
33 x4
BR1
33 x4
BR3
33 x4
R18
33
R12
33
R10
33
R16
33
R14
33
SDRAM_ADDR[12:0]
DG
R23
N.M. (1608)
SDRAM_ADDR0
SDRAM_ADDR10
SDRAM_ADDR4
SDRAM_ADDR6
SDRAM_ADDR3
SDRAM_ADDR5
SDRAM_ADDR11
SDRAM_ADDR0
SDRAM_ADDR1
SDRAM_ADDR9
SDRAM_ADDR12
SDRAM_ADDR7
SDRAM_ADDR2
SDRAM_ADDR8
BR8
33 x4
BR5
33 x4
R21
33
BR7
33 x4
TDI
TCK
TDO
TMS
/SDRAM_RAS
/SDRAM_WE
/SDRAM_CAS
SDRAM_BANK0
SDRAM_BANK1
R27
33
R25
33
R28
33
R24
33
R26
33
USBFG
5
6
7
8
VBus
D-
D+
GND
Shield1
Shield2
Shield3
Shield4
CNUSB
DUSB-BRA42-T11(D2)-
1
2
3
4
C289
0.47U (3216)
DG
DG
A
K2
K1
D5
N.M.
1
2
3
4
R33
22K
L1
1012AH-1012=P2
DG
R39
33K
C17
0.1U
R428
0
R427
0
/RESET
R29
0
A1
A2
K
D1
N.M.
R30
N.M.
C3
0.01U-K
DG
+1.8V
VRTC
R35
0
R37
N.M.
DG
C4
18P
C5
18P
RTCXO
RTCXI
X1
32.768KHz
R32
0
R34
0
N.M.
DG
R31
DG
R58
0 (1608)
R66
0 (1608)
C15
10U/16V
+3.3V
USB_DM
USB_DP
USB_VBUS
C14
0.1U
C13
0.01U-K
DG
K
A
AK
D2
N.M.
+3.3V
R44
0
DG
C8
0.1U
DG
DG
DG
C274
0.1U
R56
27.4-F (1608)
R63
24.9K-F
R57
27.4-F (1608)
R61
1.5K
R463
0
AG
CISAIN
C22
10U/16V
C30
0.1U
C29
0.1U
C19
0.1U
R84
0 (1608)
AG
DG
+
C28
10U/16V
C27
0.1U
R78
0 (1608)
C25
0.1U
C26
10U/16V
R79
N.M. (1608)
AG
DG
R83
0 (1608)
+
C24
0.01U-K
DG
AG
R459
0 (1608)
R460
0 (1608)
R82
0 (1608)
+1.8V
DG
R87
MMZ1608Y102B
C54
100U/16V
R88
0 (1608)
C53
2.2U (1608)
C52
0.01U-K
C275
1U
DG
C31
0.1U
DG
AG
98
97
96
94
93
92
91
89
88
87
86
83
82
81
80
78
77
103
104
118
102
101
99
123
122
119
116
114
113
112
111
109
108
107
106
124
125
127
128
129
130
161
173
176
174
175
189
190
138
139
187
186
140
137
200
197
199
195
194
192
193
196
198
191
188
165
163
162
168
169
167
164
170
166
41
51
46
42
43
44
45
47
48
49
50
38
10
22
66
76
85
95
105
115
121
131
141
152
184
185
160
171
182
207
(1-C3)
(1-C3)
(1-C3)
(2-C2)
(2-B3)(2-E6)
(2-B4)
(2-B4)(2-C2)
(2-B4)(2-C2)
(2-B5)
(2-B5)
(2-A6)(2-B3)
(1-F4)
(1-F4)
(2-B5)(2-C2)
(2-B5)(2-C2)
(2-B5)(2-C2)
(2-B5)(2-C2)
(2-B5)(2-C2)
(2-G5)
(2-G5)
(2-G5)
(2-G5)
(2-A2)(2-D2)
(2-G5)(2-H3)
(1-H5)
(1-H5)
(4-F6)
+3.3V
+3.3VR
+3.3V
+3.3V
+3.3V
SDRAM_CKE
2
+
+
33 x
+
Main Controller Block (2/2)
1/10
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