Read Sharp AM-400 (serv.man4) Service Manual online
AM-400DE
6 – 6
6. Modem Block (5/10)
Modem
Block
5/10
NOTE:
This
mark
indicates
a
safety-critical
part(s).
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
6
6
5
5
4
4
3
3
2
2
1
1
PB_DATA7
PB_DATA5
PB_DATA3
PB_DATA6
PB_DATA2
PB_DATA0
PB_DATA4
PB_DATA1
PB_ADDR2 PB_ADDR3 PB_ADDR4
PB_ADDR1
PB_ADDR0
MAG
+5V
+3.3V
+5VA
+3.3V
+5VA
+5V
+5V
+5VA
MAG
MAG
+5V
MAG
+5VA
+3.3V
MAG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
+3.3V
+5V
DG
DG
DG
+24VH
+24VH
DG
DG
DG
+3.3V
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
+3.3V
DG
VOLA
TXOUT
/CI
RXIN
/SPMUTE
GAINC
VOLB
VOLC
EXTSIG
PB_DATA[7:0]
/PB_WE
/PB_OE
/MODEM_CS
MODEM_INT
/MODEM_RESET
PB_ADDR[4:0]
DPON
TXOUT
RXIN
CML
DPMUTE
EXTSIG
ERLY
/CI
TXMUTE
/EXHS
SP-
SP+
BZOUT
BZCONT
SP+
SP-
6
1
4
3
C
1
0
IC16A
74LV1GW53A
C176 47P
R231 N.M.
C129
330P
C152 0.1U
R188
1K
C161
1U/10V-K(1608)
C110 1000P
R202
20K
R191 33K
R201
44.2K-F
C151
22U/50V
C165 2200P
R219
N.M.
R178
3K
C136
0.1U
1
2
C187
100U/25V
C135
0.1U/10V-K
R204 4.7K
R192
10K
C181 10U/16V
C180 0.1U
R200
10
C132
0.1U/10V-K
TP36
C190
1000P
C159
1U/10V-K(1608)
C156 1000P
C137
0.1U
C131
0.1U
C140
0.1U
R221
0
R207 3.3K
R
195
4.
7K
C189 N.M.
R184
56K
R464
N.M.
C153 0.1U
C158
330P
C130
0.1U
C111 1000P
R220
10K
C168 220p
TP40
R182 N.M.
L4
10
R132
0
C182
1U/10V-K(1608)
C162
1U/10V-K(1608)
C183 220p
R
186
N.
M
.
R210
62K
B
E
C
Q9
RT1N436C
C128 1000P
R216
0
R218
N.M.
C157
220p
R206 44.2K-F
7
6
5
4
8
+
-
IC19B
HA17358AF
C177
8P
R222
0
12
L5
0
VDD
38
VDD
50
VGG
71
VDD1
69
VDD1
63
VDD1
13
VDD1
57
VDD1
84
VDD1
92
MAVDD
26
VCORE
62
D0
87
D1
88
D2
89
D3
90
D4
91
D5
93
D6
94
D7
95
RS0
96
RS1
97
RS2
2
RS3
3
RS4
4
RD
7
WR
6
CS
5
SR4IN
21
M_RXOUT
46
IRQ
79
N.C.
17
N.C.
20
N.C.
39
N.C.
41
N.C.
48
POR
34
RESET
18
N.C.
54
N.C.
55
N.C.
60
SR4OUT
19
M_TXSIN
44
M_CLKIN
43
CLK_OUT
22
XTALI
85
XTALO
86
VSUB
52
VSS
16
VSS
53
VSS
65
VSS
80
VSS
99
RESERVED
1
TALK
37
RI
76
OH
49
RINGD
77
SPKR
27
TXD
11
RXD
67
RTS
78
CTS
12
RLSD
9
DTR
68
DSR
75
XTCLK
64
TDCLK
10
RESERVED
35
RESERVED
36
RESERVED
40
M_CNTRL_SIN
42
SR1IO
61
SLEEP
56
IA_SLEEP
70
M_STROBE
47
EYESYNC
23
EYECLK
24
M_SCK
45
EYEXY
74
GP00
81
RDCLK
8
YCLK
72
XCLK
73
TXA2
28
TXA1
29
RIN
32
VREF
30
VC
31
RESERVED
14
RESERVED
15
RESERVED
58
RESERVED
59
RESERVED
66
RESERVED
82
RESERVED
83
RESERVED
51
MAVSS
33
MAVSS
25
PLL_VDD
98
PLL_GND
100
IC18
FM336Plus
C149
22U/50V
R185 10K
6
1
4
3
1
0
IC20A N.M.
C
TP47
C167 10U/16V
C170 1U
(1608)
C186 N.M.
C171 0.1U
C
146
N.
M
.
C142 0.1U
C133
0.1U
C166 0.1U
R181
0
TP46
C184
N.M.(1608)
C112 N.M.
C113 1000P
RXIN
1
TXOUT
2
CI
3
EXHS
4
DPON
5
CML
6
+5V
7
DG
8
+24VA
9
E-RLY
10
DPMUTE
11
EXTSIG
12
CNLIU
CNLIU
LIU
CABLE
(B2011H02-12P)
SP+
1
SP-
2
CNSP
CNSP
A2001WV2-2PE
C150 0.1U
R229 4.7K
C173
470P
5
4
3
2
17
8
6
-
+
IC17
NJM2113M
1
2
C143
47U/16V
TP30
R174
270
R179
0
R
187
N.
M
.
R197
20K
R176
150K
C134
0.1U/10V-K
C
147
N.
M
.
R189 4.7K
TP49
1
2
C169
10U/16V
D11 N.M.
1
2
C144
4.7U/25V
R230 4.7K
TP39
B
E
C
Q12
RT1N436C
R228 4.7K
C139
0.1U
C141
0.1U
R190
10K
R225
0
R196 4.7K
C155
0.01U-K
C160 220p
R205
1K
C188 0.1U
12
F4
KAB5002
251
NA29
X4
28.2240MHz
B
E
C
Q10
RT1N436C
R177
20K
R217 3.3K
C185 220p
R227
100
VDD
5
GND
2
IC16B
74LV1GW53A
C172 10U/16V
TP41
R215
N.M.
TP44
A
K
D12 1SS355
C179 N.M.
R194 4.7K
R226 10K
B
E
C
Q11
RT1N436C
VDD
5
GND
2
IC20B N.M.
R133
0
C154 N.M.
B
E
C
Q13
RT1N436C
R
211
10
TP42
R214 N.M.
R199 620
R224
0
C178
0.1U/50V
(1608)
TP48
R183
1K
C164 2200P
C138
0.1U
C175
0(1608)
R212
N.M.
C174 220p
R223 10K
R180 470
TP34
TP45
1
2
3
+
-
IC19A
HA17358AF
R213
150
C148 1000P
R209
39K
TP43
R175 100K
R208 4.7K
R193 4.7K
R198
5.6K
1
2
C
145
1U/50V
(1-C6)
(1-C6)
(1-C6)
(1-C5) (1-C5)
(1-B5)
(1-B5)(3-F1)
(5-H3)
(5-H4)
(5-H3)
(5-H6)
(1-C6)
(1-C6)
(1-C6)
(1-C6)
(3-B1)
(5-I6)
(5-I6)
(1-C6)
(1-C6)
(1-C6)
(1-C6)
(1-C6)
(1-C3)
(5-F1)
(5-F1)
(5-B2)
(1-C3)
(1-C3)
(5-B2)
(5-B2)
(5-B1)
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