Sharp ER-A771 (serv.man3) Service Manual ▷ View online
ER-A771VS
CIRCUIT DIAGRAM
8 – 10
MCR CN
RDD1#
CLS1#
RCP2#
RCP1#
RDD2#
CLS2#
CLS1
11
CLS2
11
RDD1
11
RCP1
11
RDD2
11
RCP2
11
VCC
VCC
R167
R168
R169
R170
FB22
CIM31J601NE
X 6
R171
FB23
CN12
5045-0810
1
2
3
4
5
6
7
8
FB24
FB26
FB27
R176
10K
R175
10K
R173
10K
R172
10K
R174
10K
R177
10K
R166
X6
4.7K
FB25
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
10/16
MCR I/F
ER-A771VS
CIRCUIT DIAGRAM
8 – 11
X 3
FOR CKD
C CN
D8
D9
D10
D11
D12
D13
D14
D15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
D[8..15]
A[0..23]
/RES
1,3,7,9,12
/POFF
1,12,13
/AS
1,4,9
/RD
1,3,4,7,8,9,16
#
4,9,12
NMI
4
/RESET
1,4,16
TXDI
4
SCKI
4
A[0..23]
1,3,4,7,8,9,12,16
/OPTCS
1,12
/TRQ1
1,12
/WRO
1,12
/RDO
1,12
/EXWAIT
1
/WAIT
4
/KRQ
1
RXDI
4
/IRQ0
4
VRESC
14
/VMEM
9
MCRINT
4
/VWAIT
9
D[8..15]
1,3,4,8,9,12,16
RASPN1
16
RASPN1E
16
/RASPN12
9
RASPN2
9
RASPN2E
9
/HWR
1,3,4,7,8,9,16
RDD1
10
CLS1
10
RCP1
10
RDD2
10
CLS2
10
RCP2
10
IPLON0
4
/FROS1
3
HTS1
1
/SCK1
1
STH1
1
/SHEN2
1
/INTSW
7
/INTSR
7
UASCK
4
/IPLON0
1,3,4,9
STH2
1
/SCK2
1
HTS2
1
/TRQ2
1,12
VCC
VCC
VCC
VCC
VCC
VCC
VCC
R188
R184
R189
10K
X 5
C227
R180
10K
X5
C223
100pF
X5
X5
7.3728MHz
RCRSP5019BCZZ
1
3
2
R185
C213
330pF
C215
R182
C225
R192
1M
C234
0.1uF
R181
+
C235
10uF/16V
C224
C236
0.1uF
C218
R183
C217
C226
C216
330pF
X3
C214
IC29
MPCA8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
48
47
49
50
51
52
53
54
55
56
57
58
59
60
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
84
93
92
91
90
89
88
87
86
85
30
160
159
158
157
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
RF
JF
PCUT
FCUT
VF
STAMP
VIO
VMEM
SWAP
RES
FROS1
FROML
INT0
INT1
HTS1
SCK1
STH1
MCRINT
VWAIT
VCC
VSS
MCRINT
VRESC
SLTMG
SLRST
AS
RD
WR
PHAI
RASPN1E
RASPN12
VSS
RASPN2
RASPN2E
VGAL
SDT1
D0
D1
D2
D3
VSS
D4
D5
D6
D7
RESET
SSPRQ
INT2
INT3
RXDI
TXDI
SCK1
IRQ0
A0
A1
A2
A3
A4
A5
EXINT0
EXINT1
EXINT2
EXINT3
WRO
RDO
RA15
RA16
VSS
RA17
RA18
EXWAIT
WAIT
MCR2
IPLON
DAX2
PHAI
RCI
IRRX
VSS
VCC
UATX
UARX
UASCK
IRTX
RCO
RCVRDY2
PTMG
TRGI
A23
LCDC
A22
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
VCC
VSS
PRST
RCVRDY1
TPRDY
TPTRDY
TPRRDY
TEST
MD0
MD1
IPLON
INT4
RASPN1
RASP
RCP2
LCDWT
CLS2
RDD2
TEST2
TEST1
TEST0
STH2
SCK2
HTS2
RCP1
SLMTS
SLMTD
CLS1
RAS3
RDD1
VSS
VCC
ASKRX
SYNC
DOT8
DOT9
RJMTD
RJMTS
DOT5
DOT6
D0T7
VSS
DOT1
DOT2
DOT3
DOT4
TPCKI
TPRXD
TPTXD
RAS2
ROS2
ROS1
OPTCS
C230
C231
C233
100pF
X 5
C222
C229
C232
C221
R191
680
C220
100pF
X2
C219
R178
10K
X2
R179
R190
10K
C228
100pF
R186
R187
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
11/16
MPCA8
ER-A771VS
CIRCUIT DIAGRAM
8 – 12
PLZ BE SHORT
PATTERN!
CLK_USART
RES_USART
AH1
AH0
/RDH
/WRH
BRK1
TRNEMP1
RCVRDY1
TRNRDY1
RCVDT1
BRK2
TRNEMP2
RCVRDY2
TRNRDY2
BRK2
TRNEMP2
RCVRDY2
TRNRDY2
/CLSIN
BRK1
TRNEMP1
RCVRDY1
TRNRDY1
RCVDT1
D8
D9
D10
/CS1
D11
D12
D13
D14
D15
/WRH
CLK_USART
AH0
AH1
A5
A4
A0
A3
A1
A2
/RDH
/CS1
/CS2
/CS2
#
4,9,11
/DCD1
15
/CTS1
15
RCVDT1
15
/CI1
15
/RTS1
15
/POFF
1,11,13
/IRQ1
1,4
/TRQ1
1,11
/OPTCS
1,11
/RDO
1,11
/WRO
1,11
/RES
1,3,7,9,11
TXD1
15
/DTR1
15
/DSR1
15
A[0..5]
1,3,4,8,9,11,16
/CLCOM
1
/CLSIN
1
/CLSOUT
1
D[8..15]
1,3,4,8,9,11,16
/TRQ2
1,11
VCC
VCC
VCC
VCC
C240
330pF
X 3
IC30
OPC2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
SL00
SL01
SL02
SL10
SL11
SL12
SL20
SL21
SL22
SL30
SL31
SL32
CD0
BRK0
TRNEMP0
RCVRDY0
TRNRDY0
CTS0
RCVDT0
VCC
GND
CI0
RTS0
CS0
CD1
BRK1
TRNEMP1
RCVRDY1
TRNRDY1
CTS1
RCVDT1
CI1
RTS1
CS1
CD2
TRNEMP2
RCVRDY2
TRNRDY2
CTS2
RCVDT2
CI2
CS2
CD3
BRK3
TRNEMP3
RCVRDY3
TRNRDY3
CTS3
RCVDT3
CI3
CS3
D0
D1
D2
D3
GND
D4
D5
D6
D7
GND
VCC
X1
X2
XOUT
TRCK
AB0
AB1
US1CH
PX
POF
RSRQ
TRV
RXDATA0
TXE
TRRQ
TRQ1
TRQ2
A0
A1
A2
A3
A4
A5
OPTCS
RD
WR
RES
DB0
DB1
DB2
DB3
GND
DB4
DB5
DB6
DB7
R
W
VCC
GND
RES
TRNCLK
RCVCLK
DBTST
UTST
CSA
TRNDTA
DTRA
RTSA
RCVDTA
CTSA
DSRA
TRNRDYA
RCVRDYA
TRNEMPA
SYCBKA
GND
CSB
TRNDTB
DTRB
RTSB
RCVDTB
CTSB
DSRB
TRNRDYB
RCVRDYB
TRNEMPB
SYCBKB
GND
CSC
TRNDTC
DTRC
RTSC
RCVDTC
CTSC
DSRC
TRNRDYC
RCVRDYC
TRNEMPC
SYCBKC
VCC
GND
CSD
TRNDTD
DTRD
RTSD
RCVDTD
CTSD
DSRD
TRNRDYD
RCVRDYD
TRNEMPD
SYCBKD
WIN
RIN
RSLCT0
RSLCT1
RST
MCLK
R194
+
C239
NU
R193
10K
X 3
C241
+
C237
10uF/16V
C238
0.1uF
C280
R220
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
12/16
OPC2
ER-A771VS
CIRCUIT DIAGRAM
8 – 13
NOT USED
NOT USED
+20V
+20V
+20V
1,2,9
/POFF
1,11,12
VO
14
VCC
+
C40A1
10uF/50V
L4A1
220uH
ZD5A1
PTZ22B
A
K
D1A1
RB160L-60
A
K
R199
15KG
IC31
KIA7045F
1
2
3
+
C47A1
1000uF/50V
L4960H
IC36A1
L4960H
1
6
5
4
7
2
3
C243
1000pF
D6
1SS355
A
K
1
2
VINA
VINB
CN7A1
MLX 5274-02A
2
1
R262A1
NU
R238A1
4.7KF
R235A1
14KF
R229A1
15K
C239A1
2200pF
R196
2.7K
C235A1
33000pF
R198
56K
ZD1
UDZ5.1A
A
K
+
-
IC17A1A
BA10393
3
2
1
8
4
+
C242
1uF
50V
+
C36A1
4700uF/50V
R195
6.2KG
R226A1
4.3K
+
BD1A1
CP301
2
1
4
3
R197
2.7K
F2A1
T1.6AL/250V
UL/CSA 1.5A/125V
R200
9.1KG
S
C38A1
0.01uF/100V
(103K)
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
13/16
+20V PO
WER CIRCUIT
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