Sharp ER-A770 Service Manual Page 35
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2-3. OPC2
1) Pin configuration
1
SL00
2
SL01
3
SL02
4
SL10
5
SL11
6
SL12
7
SL20
8
SL21
9
SL22
10
SL30
11
SL31
12
13
/CD0
14
BRK0
15
TRNEMP0
16
RCVRDY0
17
TRNRDY0
18
/CTS0
19
RCVDT0
20
VCC
21
GND
22
/CI0
23
/RTS0
24
/CS0
25
/CD1
26
BRK1
27
TRNEMP1
28
RCVRDY1
29
TRNRDY1
30
/CTS1
31
32
33
/RTS1
34
35
36
TRNEMP2
37
RCVRDY2
38
TRNRDY2
39
CTS2Z
40
RCVDT2
160
MCLK
159
158
RSLCT1
157
RSLCT0
156
/RIN
155
/WIN
154
SYCBKD
153
TRNEMPD
152
RCVRDYD
151
TRNRDYD
150
/DSRD
149
/CTSD
148
RCVDTD
147
/RTSD
146
/DTRD
145
TRNDTD
144
/CSD
143
GND
142
VCC
141
SYCBKC
140
TRNEMPC
139
RCVRDYC
138
TRNRDYC
137
/DSRC
136
/CTSC
135
RCVDTC
134
/RTSC
133
/DTRC
132
TRNDTC
131
/CSC
130
GND
129
SYCBKB
128
TRNEMPB
127
RCVRDYB
126
TRNRDYB
125
/DSRB
124
/CTSB
123
RCVDTB
122
/RTSB
121
/DTRB
41
/CI2
42
/CS2
43
/CD3
44
BRK3
45
TRNEMP3
46
RCVRDY3
47
TRNRDY3
48
/CTS3
49
RCVDT3
50
/CI3
51
/CS3
52
D0
53
D1
54
D2
55
D3
56
GND
57
D4
58
D5
59
D6
60
D7
61
GND
62
VCC
63
X1
64
X2
65
XOUT
66
TRCK
67
AB0
68
AB1
69
US1CH
70
PX
71
/POF
72
/RSRQ
73
/TRV
74
RXDATA0
75
TXE
76
/TRRQ
77
/TRQ1
78
/TRQ2
79
A0
80
A1
120
TRNDTB
119
/CSB
118
GND
117
SYCBKA
116
TRNEMPA
115
RCVRDYA
114
TRNRDYA
113
/DSRA
112
/CTSA
111
RCVDTA
110
/RTSA
109
/DTRA
108
TRNDTA
107
/CSA
106
UTST
105
DBTST
104
RCVCLK
103
TRNCLK
102
RES
101
GND
100
VCC
99
/W
98
/R
97
DB7
96
DB6
95
DB5
94
DB4
93
92
91
90
DB1
89
DB0
88
/RES
87
/WR
86
/RD
85
/OPTCS
84
A5
83
A4
82
A3
81
A2
GND
RST
SL32
RCVDT1
/CI1
/CS1
/CD2
DB2
DB3
- SERVICE MANUAL 1
- CHAPTER 1. SPECIFICATION 2
- 3. Display 4
- CHAPTER 2. OPTIONS 5
- ER-A770 bus connector 7
- CHAPTER 3. SERVICE PRECAUTION 8
- IPL from IR 10
- Connected 115200 10
- 21 22 23 24 25 26 27 28 10
- SENDING 00000 11
- 4. Note for handling of LCD 12
- 6. Others 12
- SRV. reset 13
- MRS-1 Key 14
- Symbol/PartsCod) 15
- MRS-3 Key 16
- ENTER PASSWORD 16
- 1. General 17
- 2. System configuration 17
- 3. Diagnostics 17
- 3-2. RAM Diagnostics 18
- UP-P02MB2 Check 19
- Error Address xxxxxxH 19
- Write Data xxxxH 19
- Read Data xxxxH 19
- 3-5. RS232 I/F Diagnostics 20
- RS232 CH1 Check 21
- ER-DR : ERROR!! 21
- Rear Display Check 23
- • Satellite machine setting 24
- • Master machine setting 25
- Magnetic Card Reader Check 26
- TRACK1:BUFFER EMPTY 26
- TRACK1:MCR ERROR 26
- TRACK2:BUFFER EMPTY 26
- TRACK2:MCR ERROR 26
- 1. Hardware block diagram 27
- 2) Block diagram 29
- 3) Pin description 30
- 2-2. G.A.(MPCA8) 31
- 2-3. OPC2 35
- 1) Features 38
- 2) Pin configuration 38
- 3) General description 39
- 4) Pin description 39
- 2) General description 39
- 3) Pin configuration 40
- 4) Functional description 40
- 5) Pin description 40
- DMA CONTROLLER 41
- 1) FEATURES 41
- 2-7. MB62H149 42
- 1) Pin Configuration 44
- 2-9. CKDC9 (HD404728B02FS) 46
- (MAX4MB) 48
- 4. LCD display 49
- 5. Customer display 49
- 6. Pseudo SRAM (Standard) 50
- 7. NOR-type flash memory 50
- 8. SSP control 50
- 9. Interrupt control 50
- 10. WAIT control 51
- 11. CKDC9 51
- 12. Option RAM interface 51
- 13. Reset sequence 52
- 14. Drawer 52
- 16. RS232 53
- CHAPTER 8. CIRCUIT DIAGRAM 54
- FLASH ROM 56
- ODD SIDE 57
- EVEN SIDE 57
- +24V/+5V POWER CIRCUIT 65
- DC-DC CNV CIRCUIT 66
- CONNECTOR 67
- 2. CKDC PWB 68
- 3. INVERTOR PWB 70
- 4. N/F PWB 71
- 2. Main PWB (Side-B) 73
- 3. Mother PWB 74
- 4. CKDC PWB 74
- 5. Inverter PWB 75
- 6. Noise filter PWB 75
- PARTS GUIDE 76
- 1 Top cabinet etc 77
- 2 Bottom cabinet etc 79
- 4 Main PWB unit 81
- 5 Mother PWB unit 84
- 6 CKDC PWB unit 84
- 7 NF PWB unit 85
- 8 Inverter PWB unit 85
- 9 Service tools 85
- 10 Supply 85
- PARTS CODE NO 86
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