Sharp ER-A450T Service Manual - Page 16

Pin configulation, Pin assignment CKDC8

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Pin Signal No. name 107 MCR2 108 WAIT 109 EXWAIT 110 RA18 111 RA17 112 GND 113 RA16 114 RA15 115 RDO 116 WRO 117 EXINT3 118 EXINT2 119 EXINT1 120 EXINT0 121 OPTCS 122 ROS1 123 ROS2 124 RAS2 125 RAS1 126 RJRST 127 RJTMG 128 DT4 129 DT3 130 DT2 131 DT1 132 GND 133 DT7 134 DT6 135 DT5 136 MTD 137 MTD 138 DOT9 139 DOT8 140 SYNC 141 ASKRX 142 VCC 143 GND 144 - 145 RAS3 146 RJMTR 147 SLMTD 148 SLMTS 149 SLMTR 150 HTS2 151 SCK2 152 STH2 153 - 154 - 155 - 156 - 157 - 158 LCDWT 159 DOTEN 160 RASP In/ Out Function - Nu Out Wait request signal In External wait control input signal (NU) +5V Out Nu Out Nu - GND Out Nu Out Nu Out Expansion RD signal Out Expansion WR signal Option In RS232C /CD interrupt In Option PWB (PULL UP) In RS232C /CI interrupt In Option PWB (PULL UP) Out Chip select base signal for expansion option Out ROM 1 chip select signal Out ROM 2 chip select signal (NU) Out RAM 2 chip select signal Out RAM 1 chip select signal In Printer reset signal In FOR TPRC (NU) +5V Out Printer dot signal 4 (NU) Out Printer dot signal 3 (NU) Out Printer dot signal 2 (NU) Out Printer dot signal 1 (NU) - GND Out Printer dot signal 7 (NU) Out Printer dot signal 6 (NU) Out Printer dot signal 5 (NU) Out Printer motor drive signal (NU) Out Printer motor drive signal (NU) Out Printer dot signal 9 (NU) Out Printer dot signal 8 (NU) - Nu (+5V) - I/R input from I/R unit (NU) Pull-up - +5V - GND - Nu Out Nu In Printer motor lock detection signal (NU) GND Out Nu Out Nu In GND Out Serial output to FMC unit Out Serial clock to FMC unit In Serial input to FMC unit - Nu - Nu - Nu - Nu - Nu IN TPRC wait signal Out Dot drive enable signal (Nu) - Nu 2-3. CKDC8 1) Pin configulation 64 NU 63 NU 62 G10 61 G9 60 G8 59 G7 58 G6 57 G5 56 G4 55 G3 54 G2 53 G1 52 BUZ 51 /POFF 50 NU 49 ST8 DP 1 SA 2 SB 3 SC 4 SD 5 SE 6 SF 7 SG 8 GND 9 VDD 10 KR4 11 KR10 12 KR11 13 NU 14 HTS 15 STH 16 CKDC8 48 ST7 47 ST6 46 /RESETS 45 /SHEN 44 ERC 43 LDRQ 42 GND 41 40 39 GND 38 37 36 /RES0 35 VDD 34 GND 33 KR7 /SCK 17 ST0 18 ST1 19 ST2 20 ST3 21 ST4 22 ST5 23 VDD 24 GND 25 NU 26 KR0 27 KR1 28 KR2 29 KR3 30 KR5 31 KR6 32 2) Pin assignment (CKDC8) Pin No. SYMBOL 1 DP 2 A 3 B 4 C 5 D 6 E 7 F 8 G 9 VSS0 10 VDD0 11 KR4 12 KR10 13 KR11 14 KR8 15 HTS 16 STH 17 /SCK 18 ST0 19 ST1 20 ST2 21 ST3 22 ST4 23 ST5 24 VDD1 25 AXSS 26 KR9 27 KR0 28 KR1 29 KR2 30 KR3 31 KR5 SIGNAL NAME DP SA SB SC SD SE SF SG GND VDD KR4 KR10 KR11 NU HTS STH /SCK ST0 ST1 ST2 ST3 ST4 ST5 VDD GND NU KR0 KR1 KR2 KR3 KR5 IN/ OUT FUNCTION OUT DISPLAY SEGMENT Dp OUT DISPLAY SEGMENT a OUT DISPLAY SEGMENT b OUT DISPLAY SEGMENT c OUT DISPLAY SEGMENT d OUT DISPLAY SEGMENT e OUT DISPLAY SEGMENT f OUT DISPLAY SEGMENT g GND VDD IN KEY RETURN 4 IN KEY RETURN (feed clerk MRS sw) IN KEY RETURN (MODE sw) IN GND IN OUT IN SHIFT CLOCK OUT KEY STROBE 0 OUT KEY STROBE 1 OUT KEY STROBE 2 OUT KEY STROBE 3 OUT KEY STROBE 4 OUT KEY STROBE 5 VDD GND GND IN KEY RETURN 0 IN KEY RETURN 1 IN KEY RETURN 2 IN KEY RETURN 3 IN KEY RETURN 5 4 - 8

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Pin
No.
Signal
name
In/
Out
Function
107
MCR2
—
Nu
108
WAIT
Out
Wait request signal
109
EXWAIT
In
External wait control input signal (NU)
+5V
110
RA18
Out
Nu
111
RA17
Out
Nu
112
GND
—
GND
113
RA16
Out
Nu
114
RA15
Out
Nu
115
RDO
Out
Expansion RD signal
Option
116
WRO
Out
Expansion WR signal
117
EXINT3
In
RS232C /CD interrupt
118
EXINT2
In
Option PWB (PULL UP)
119
EXINT1
In
RS232C /CI interrupt
120
EXINT0
In
Option PWB (PULL UP)
121
OPTCS
Out
Chip select base signal for expansion
option
122
ROS1
Out
ROM 1 chip select signal
123
ROS2
Out
ROM 2 chip select signal (NU)
124
RAS2
Out
RAM 2 chip select signal
125
RAS1
Out
RAM 1 chip select signal
126
RJRST
In
Printer reset signal
127
RJTMG
In
FOR TPRC (NU)
+5V
128
DT4
Out
Printer dot signal 4 (NU)
129
DT3
Out
Printer dot signal 3 (NU)
130
DT2
Out
Printer dot signal 2 (NU)
131
DT1
Out
Printer dot signal 1 (NU)
132
GND
—
GND
133
DT7
Out
Printer dot signal 7 (NU)
134
DT6
Out
Printer dot signal 6 (NU)
135
DT5
Out
Printer dot signal 5 (NU)
136
MTD
Out
Printer motor
drive signal (NU)
137
MTD
Out
Printer motor drive signal (NU)
138
DOT9
Out
Printer dot signal 9 (NU)
139
DOT8
Out
Printer dot signal 8 (NU)
140
SYNC
—
Nu (+5V)
141
ASKRX
—
I/R input from I/R unit (NU) Pull-up
142
VCC
—
+5V
143
GND
—
GND
144
—
—
Nu
145
RAS3
Out
Nu
146
RJMTR
In
Printer motor lock detection signal (NU)
GND
147
SLMTD
Out
Nu
148
SLMTS
Out
Nu
149
SLMTR
In
GND
150
HTS2
Out
Serial output to FMC unit
151
SCK2
Out
Serial clock to FMC unit
152
STH2
In
Serial input to FMC unit
153
—
—
Nu
154
—
—
Nu
155
—
—
Nu
156
—
—
Nu
157
—
—
Nu
158
LCDWT
IN
TPRC wait signal
159
DOTEN
Out
Dot drive enable signal (Nu)
160
RASP
—
Nu
2-3. CKDC8
1) Pin configulation
2) Pin assignment (CKDC8)
Pin
No.
SYMBOL
SIGNAL
NAME
IN/
OUT
FUNCTION
1
DP
DP
OUT
DISPLAY SEGMENT Dp
2
A
SA
OUT
DISPLAY SEGMENT a
3
B
SB
OUT
DISPLAY SEGMENT b
4
C
SC
OUT
DISPLAY SEGMENT c
5
D
SD
OUT
DISPLAY SEGMENT d
6
E
SE
OUT
DISPLAY SEGMENT e
7
F
SF
OUT
DISPLAY SEGMENT f
8
G
SG
OUT
DISPLAY SEGMENT g
9
VSS0
GND
GND
10
VDD0
VDD
VDD
11
KR4
KR4
IN
KEY RETURN 4
12
KR10
KR10
IN
KEY RETURN (feed clerk
MRS sw)
13
KR11
KR11
IN
KEY RETURN (MODE sw)
14
KR8
NU
IN
GND
15
HTS
HTS
IN
16
STH
STH
OUT
17
/SCK
/SCK
IN
SHIFT CLOCK
18
ST0
ST0
OUT
KEY STROBE 0
19
ST1
ST1
OUT
KEY STROBE 1
20
ST2
ST2
OUT
KEY STROBE 2
21
ST3
ST3
OUT
KEY STROBE 3
22
ST4
ST4
OUT
KEY STROBE 4
23
ST5
ST5
OUT
KEY STROBE 5
24
VDD1
VDD
VDD
25
AXSS
GND
GND
26
KR9
NU
GND
27
KR0
KR0
IN
KEY RETURN 0
28
KR1
KR1
IN
KEY RETURN 1
29
KR2
KR2
IN
KEY RETURN 2
30
KR3
KR3
IN
KEY RETURN 3
31
KR5
KR5
IN
KEY RETURN 5
NU
NU
G10
G9
G8
G7
G6
G5
G4
G3
G2
G1
BUZ
/POFF
NU
ST8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DP
SA
SB
SC
SD
SE
SF
SG
GND
VDD
KR4
KR10
KR11
NU
HTS
STH
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
ST7
ST6
/RESETS
/SHEN
ERC
LDRQ
GND
GND
/RES0
VDD
GND
KR7
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
/SCK
ST0
ST1
ST2
ST3
ST4
ST5
VDD
GND
NU
KR0
KR1
KR2
KR3
KR5
KR6
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
CKDC8
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