DOWNLOAD Sharp ER-A770 (serv.man4) Service Manual ↓ Size: 17.65 MB | Pages: 94 in PDF or view online for FREE

Model
ER-A770 (serv.man4)
Pages
94
Size
17.65 MB
Type
PDF
Document
Service Manual
Brand
Device
EPOS / ERA770 V2 (With Circuit Descriptins)Service Manuals
File
er-a770-sm4.pdf
Date
PREV: Sharp ER-A770 (serv.man3) Handy Guide

Sharp ER-A770 (serv.man4) Service Manual ▷ View online

2-2. G.A.(MPCA8)
1) Pin configuration
1
RF
2
JF
3
PCUTZ
4
FCUTZ
5
VFZ
6
STAMPZ
7
VIOZ
8
VMEMZ
9
SWAPZ
10
RESZ
11
FROS1Z
12
13
POFF
14
INT1Z
15
HTS1
16
SCK1
17
STH1
18
MCRINT
19
VWAITZ
20
VDD
21
GND
22
MCRINTZ
23
VRESC
24
SLTMG
25
SLRST
26
ASZ
27
RDZ
28
WRZ
29
PHAI
30
RASPN1
31
32
33
GND
34
35
36
VGALZ
37
SDT1Z
38
ID0
39
ID1
40
ID2
160
RASP
159
158
LCDWT
157
CLS2
156
RDD2
155
TEST2
154
TEST1
153
TEST0
152
STH2
151
SC
K2
150
HTS2
149
RCP1
148
SLMTS
147
SLMTD
146
CLS1
145
RAS3
144
RDD1
143
GND
142
VD
D
141
ASKR
XZ
140
SYNC
139
DT8
138
DT9
137
RJMTD
136
RJMTS
135
DT5
134
DT6
133
DT7
132
GND
131
DT1
130
DT2
129
DT3
128
DT4
127
RJTMG
126
TPCKI
125
TPTXD
124
RAS2
123
ROS2Z
122
ROS1Z
121
OPTCSZ
41
ID3
42
GND
43
ID4
44
ID5
45
ID6
46
ID7
47
SSPR
QZ
48
RESETZ
49
INT2Z
50
INT3Z
51
RXDI
52
TXDI
53
SC
KI
54
IRQ0Z
55
A0
56
A1
57
A2
58
A3
59
A4
60
A5
61
GND
62
VD
D
63
A6
64
A7
65
A8
66
A9
67
A10
68
A11
69
A12
70
A13
71
A14
72
A15
73
A16
74
A17
75
A18
76
A19
77
A20
78
A21
79
A22
80
LCDCZ
120
EXINT0Z
119
EXINT1Z
118
EXINT2Z
117
EXINT3Z
116
WROZ
115
RDOZ
114
RA15
113
RA16
112
GND
111
RA17
110
RA18
109
EXWAITZ
108
WAITZ
107
MCR2Z
106
IPLON
105
DAX2
104
DAX1
103
RCRXZ
102
IRRXZ
101
GND
100
VDD
99
UATXZ
98
UARXZ
97
UASCK
96
IRTX
95
RCO
94
RCVRDY2
93
92
91
90
TPRRDYZ
89
TESTZ
88
MD0
87
MD1
86
IPLONZ
85
INT4Z
84
PRST
83
PTMG
82
TRGI
81
A23
RCVRDY1
RCP2
FROMLZ
RASPN1E
RASPN12Z
RASPN2
RASPN2E
TPTRDYZ
TPRDY
2) Block diagram
DROS1Z
RASPN1
IPLONZ
VMEMZ
RASPN1E
RASPN12Z
RASPN2
RASPN2E
D0-D7
WRZ
RDOZ
WROZ
PHAI
RESETZ
RESZ
RDZ
IRRXZ
RCRXZ
UASCK
UARXZ
UATXZ
IRTX
VRESC
POFFZ
ASZ
EXWAITZ
WAITZ
MCRINT
MCRINTZ
VWAITZ
CLS1
RCP1
RDD1
CLS2
RCP2
RDD2
TPTRDYZ
TPTXD
TPRXD
TPCKI
TPRDY
TPRRDYZ
SSPRQZ
DAX2
TXDI
SCKI
RXDI
DAX1
SCK1
STH2
HTS2
SCK2
STH2
HTS1
INT1Z
INT2Z
INT3Z
EXINT0Z
EXINT1Z
EXINT2Z
INT4Z
TESTZ
TEST0
TEST1
TEST2
MD0
MD1
IRQ02
EXINT3Z
DECODE
BUFFER
READ
WRITE
CONTROL
WAIT
CONTROL
MCR I/F
USART
X2
TOUCH PANEL I/F
USART
SSP COMPARISON
REGISTER
BAR
IR
CONTROL
SERIAL
CHANNEL
SELECT
(for CKDC)
INT
CONTROL
TEST
LOGIC
M P C A 8
A23-A0
3) Pin description
Pin
No.
Name
I/O
Description 
1
RF
ON
NU 
2
JF
ON
NU 
3
PCUTZ
ON
NU 
4
FCUTZ
ON
NU 
5
VFZ
ON
NU 
6
STAMPZ
ON
NU 
7
VIOZ
O
NU 
8
VMEMZ
O
VRAM DEOCDE 
9
SWAPZ
O
NU
10
RESZ
O6M RESET
11
FROS1Z
O
FLASH ROM DECODE
12
FROMLZ
O
NU
13
POFF
IC
POWER OFF SIGNAL INPUT 
14
INT1Z
ICU
INTERRUPT SIGNAL INPUT 
15
HTS1
O
SERIAL OUT (CKDC INTERFACE) 
16
SCK1
O
SERIAL CLOCK (CKDC INTERFACE)
17
STH1
IS
SERIAL IN (CKDC INTERFACE) 
18
MCRINT
O
MCR INTRRUPT OUT 
19
VWAITZ
IU
VGA WAIT INPUT  
20
VDD
–
21
GND
–
22
MCRINTZ
O
MCR INTRRUPT OUT 
23
VRESC
ON
TURNS ACTIVE WHEN
RESET&POWER DOWN IS MET 
24
SLTMG
ICS
GND 
25
SLRST
ICS
GND 
26
ASZ
I
ADDRESS STROBE
27
RDZ
I
READ STROBE 
28
WRZ
I
WRITE STROBE 
29
PHAI
IS
SYSTEM CLOCK (9.83MHz) 
30
RASPN1
O
PSRAM DECODE1 
31
RASPN1E
O
PSRAM DECODE1 (EVEN) 
32
RASPN12Z
O
PSRAM DECODE1 OR 2 
33
GND
–
34
RASPAN2
O
PSRAM DECODE2
35
RASPN2E
O
PSRAM DECODE2(EVEN) 
36
VGALZ
O
NU
37
SDT1Z
O
NU
38
ID0
IO
DATA BUS 
39
ID1
IO
DATA BUS 
40
ID2
IO
DATA BUS 
41
ID3
IO
DATA BUS 
42
GND
–
43
ID4
IO
DATA BUS 
44 
ID5
IO
DATA BUS 
45
ID6
IO
DATA BUS 
46
ID7
IO
DATA BUS 
47
SSPRQZ
O
SSP REQUEST FOR CPU 
48
RESETZ
ICS
MPCA RESET 
49
INT2Z
ICU
INTERRUPT INPUT (NU)
50
INT3Z
ICU
INTERRUPT INPUT (NU) 
51
RXDI
O
SERIAL OUT FOR CPU
52
TXDI
IS
SERIAL IN FROM CPU 
53
SCKI
IU
SERIAL CLOCK FROM CPU 
Pin
No.
Name
I/O
Description 
54
IRQ0Z
O
INTERRUPT SIGNAL FOR CPU 
55
A0
I
ADDRESS BUS 
56
A1
I
ADDRESS BUS 
57
A2
I
ADDRESS BUS 
58
A3
I
ADDRESS BUS 
59
A4
I
ADDRESS BUS 
60
A5
I
ADDRESS BUS 
61
GND
–
62
VDD
–
63
A6
I
ADDRESS BUS 
64
A7
I
ADDRESS BUS 
65
A8
I
ADDRESS BUS 
66
A9
I
ADDRESS BUS 
67
A10
I
ADDRESS BUS 
68
A11
I
ADDRESS BUS 
69
A12
I
ADDRESS BUS 
70
A13
I
ADDRESS BUS 
71
A14
I
ADDRESS BUS
72
A15
I
ADDRESS BUS 
73
A16
I
ADDRESS BUS 
74
A17
I
ADDRESS BUS 
75
A18
I
ADDRESS BUS 
76
A19
I
ADDRESS BUS 
77
A20
I
ADDRESS BUS 
78
A21
I
ADDRESS BUS 
79
A22
I
ADDRESS BUS 
80
LCDCZ
O
NU 
81
A23
I
ADDRESS BUS 
82
TRGI
IS
NU 
83
PTMG
O
NU
84
PRST
O
NU
85
INT4Z
ICU
INTERRUPT INPUT (SHEN2 FOR
OPTION CKDC)
86
IPLONZ
IU
IPL SIGNAL FROM OPTION
CONNECTER
87
MD1
ICU
TEST PIN 
88
MD0
ICU
TEST PIN
89
TESTZ
ICU
TEST PIN
90
TPRRDYZ
O
NU
91
TPTRDYZ
O
NU
92
TPRDY
O
NU 
93
RCVRDY1
IU
NU 
94
RCVRDY2
IU
NU 
95
RCO
O
NU 
96
IRTX
O
NU
97
UASCK
O
USART CLOCK
98
UARXZ
O
NU
99
UATXZ
IU
NU
100
VDD
–
101
GND
–
102
IRRXZ
ICS
NU
103
RCRXZ
ICS
NU 
104
DAX1
OSCI IR CLOCK (7.37MHz) 
Pin
No.
Name
I/O
Description 
105
DAX2
OSCO IR CLOCK (7.37MHz) 
106
IPLON
O
IPLON SIGNAL 
107
MCR2Z
O
NU 
108
WAITZ
O
WAIT FOR CPU 
109
EXWAITZ
IU
EXTERNAL WAIT INPUT SIGNAL 
110
RA18
O
NU 
111
RA17
O
NU 
112
GND
–
113
RA16
O
NU 
114
RA15
O
NU 
115
RDOZ
O8M EXPANSION RD 
116
WROZ
O8M EXPANSION WR 
117
EXINT3Z
ICS
EXPANSION INTERRUPT SIGNAL 
118
EXINT2Z
ICS
EXPANSION INTERRUPT SIGNAL 
119
EXINT1Z
ICS
EXPANSION INTERRUPT SIGNAL 
120
EXINT0Z
ICS
EXPANSION INTERRUPT SIGNAL 
121
OPTCSZ
O
BASE DECODE SIGNAL FOR
EXPANSION SLOT 
122
ROS1Z
O
NU 
123
ROS2Z
O
N U 
124
RAS2
O
NU 
125
TPTXD
O
NU
126
TPRXD
ICS
NU
127
TPCKI
ICS
NU
128
DT4
ON
NU 
129
DT3
ON
NU 
130
DT2
ON
NU 
131
DT1
ON
NU 
132
GND
–
133
DT7
ON
NU 
134
DT6
ON
NU 
135
DT5
ON
NU 
136
RJMTS
ON
NU 
137
RJMTD
ON
NU 
138
DT9
ON
NU 
139
DT8
ON
NU 
140
SYNC
IU
NU 
141
ASKRXZ
ICS
NU
142
VDD
–
143
GND
–
144
RDD1
ICS
SERIAL IN FROM MCR TRACK1  
145
RAS3
O
NU 
146
CLS1
ICS
CARD SENSE ON MCR TRACK1 
147
SLMTD
ON
NU 
148
SLMTS
ON
NU 
149
RCP1
ICS
CLOCK PULSE FROM MCR TRACK1 
150
HTS2
O
SERIAL OUT (OPTION CKDC
INTERFACE)
151
SCK2
O
SERIAL CLOCK (OPTION CKDC
INTERFACE)
152
STH2
IS
SERIAL IN (OPTION CKDC
INTERFACE)
153
TEST0
I
TEST PIN 
154
TEST1
I
TEST PIN 
155
TEST2
I
TEST PIN 
Pin
No.
Name
I/O
Description 
156
RDD2
ICS
SERIAL IN FROM MCR TRACK1 
157
CLS2
ICS
CARD SENSE ON MCR TRACK1 
158
LCDWT
IU
NU 
159
RCP2
ICS
CLOCK PULSE FROM MCR TRACK1
160
RASP
O
NU 
I
TTL input
IS
TTL Schmidt input
IU
TTL pull up input
IC
CMOS input
ICS
CMOS Schmidt input 
ICU
CMOS pull up input
IO
TTL I/O
O
Output 4mA 
O8M
Output 8mA
ON
Nch open drain output
OSIC
Oscillation circuit input 
OSCI
Oscillation circuit output
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