Casio PCRT275 Owners Manual - Page 17

Stepping Motor Driver IC, Display Driver IC

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5-4. Printer drive circuit 76 P63/A19 P64/RD P65/WR 77 78 79 VDD 80 81 82 83 84 85 86 87 88 89 90 91 92 93 P90 94 95 P92 96 P93 97 P94 98 99 100 P66/WAIT P67/ASTB P100/TI5/TO5 P101/TI6/TO6 P102/TI7/TO7 P103/TI8/TO8 P30/TO0 P31/TO1 P32/TO2 P33/TI1 P34/TI2 P35/TI00 P36/TI01 P37/(EXA) TEST/(Vpp) P91 P95 26 P11/ANI1 27 28 P12/ANI2 29 P13/ANI3 30 P14/ANI4 P15/ANI5 31 32 P16/ANI6 33 P17/ANI7 34 AVSS P130/ANO0 35 P131/ANO1 36 37 AVREF1 38 P70/RxD2/SI2 P71/TxD2/SO2 39 P72/ASCK2/SCK2 40 41 P20/RxD1/SI1 42 P21/TxD1/SO1 43 P22/ASCK1/SCK1 P23/PCL 44 45 P24/BUZ 46 P25/SI0/ 47 P26/SO0 P27/SCK0 48 49 P80/A0 50 P81/A1 P82/A2 16V3300uF C1 R6 10k 1 2 P120/RTP0 3 P121/RTP1 P122/RTP2 4 5 P123/RTP3 6 P124/RTP4 7 P125/RTP5 P126/RTP6 8 P127/RTP7 9 10 VDD 11 X2 X1 12 VSS 13 14 XT2 15 XT1 16 RESET P00/INTP0 17 18 P01/INTP1 19 P02/INTP2/NMI 20 P03/INTP3 P04/INTP4 21 22 P05/INTP5 23 P06/INTP6 24 AVDD AVREF0 25 P10/ANI0 IC4 uPD784215AGC 75 P62/A18 74 P61/A17 73 P60/A16 72 VSS 71 P57/A15 70 P56/A14 69 P55/A13 68 P54/A12 67 P53/A11 66 P52/A10 65 P51/A9 64 P50/A8 63 P47/AD7 62 P46/AD6 61 P45/AD5 60 P44/AD4 59 P43/AD3 58 P42/AD2 57 P41/AD1 56 P40/AD0 55 P87/A7 54 P86/A6 53 P85/A5 52 P84/A4 51 P83/A3 VP + Q7 1 1 2 2 3 4 3 4 8 8 7 7 6 6 5 5 Q11 FSS133 + DTC114YUA 5-5. Display circuit R7 1k C3 16V100uF R77 10k R72 10k R68 10k VCC R59 10k 100p C20 100p C19 100p C17 100p C16 R55 10k VCC R52 4.7k R56 0 R60 0 R69 0 R73 0 R92 0 R78 0 R54 100 MOLEX 52807-3010 CN9 9 KI2 2 KI1 3 KI10 1 LEDCOM0 5 LEDSTR 7 KC4 30 SENS1 29 SENS2 28 VP 27 VP 26 DATA 25 LATCH 24 CLOCK 23 Vdd 22 DST4 21 GND 20 GND 19 DST3 18 Vdd 17 THERMISTOR 16 GND 15 GND 14 DST1 13 DST2 12 VP 11 VP 10 nA 8 A 4 B 6 nB 100p C15 100p C24 2200p C22 0.1u C14 VP IC8 1 10 VCC OUT4 2 9 3 IN4 OUT3 8 4 IN3 OUT1 7 5 IN1 OUT2 6 IN2 GND LB1846M + Stepping Motor Driver IC C28 16V10uF Display Driver IC IC2 1 I1 2 3 I2 4 I3 5 I4 I5 6 7 I6 I7 16 O1 15 O2 14 O3 13 O4 12 O5 11 O6 10 O7 VLED 8 GND 9 COM ULN2003AFW IC1 VLED 1 I1 2 3 I2 4 I3 I4 5 I5 6 7 I6 I7 16 O1 15 O2 14 O3 13 O4 12 O5 11 O6 10 O7 8 GND 9 COM ULN2003AFW 2SD1626 Q2 R4 4.7k R5 10k 2SD1626 Q1 R2 4.7k R3 10k - 15 - CN1 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 1 2 3 4 5 LEDSA1 LEDSB1 LEDSC1 LEDSD1 LEDSE1 LEDSF1 LEDSG1 LEDSTR LEDSA0 LEDSB0 LEDSC0 LEDSD0 LEDSE0 LEDSF0 LEDSG0 LEDDP0 LEDCOM0 LEDCOM1 LEDCOM2 LEDCOM3 LEDCOM4 MOLEX 52044-2145

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—
15
—
5-5.
Display circuit
KC4
SENS1
SENS2
VP
VP
DATA
LATCH
CLOCK
Vdd
DST4
GND
GND
GND
GND
DST3
Vdd
THERMISTOR
DST1
DST2
VP
VP
nB
B
A
nA
KI2
KI1
KI10
LEDCOM0
LEDSTR
VCC
1
IN2
5
OUT2
7
IN1
4
IN3
3
IN4
2
GND
6
OUT4
10
OUT1
8
OUT3
9
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
8
4
6
9
2
3
7
1
5
3
3
2
2
7
7
6
6
1
1
4
4
8
8
5
5
P60/A16
73
P63/A19
76
P90
95
P61/A17
74
P127/RTP7
8
X2
10
P91
96
P37/(EXA)
93
P36/TI01
92
P34/TI2
90
P31/TO1
87
P30/TO0
86
P103/TI8/TO8
85
TEST/(Vpp)
94
P35/TI00
91
P92
97
P32/TO2
88
P01/INTP1
17
P05/INTP5
21
P52/A10
66
P04/INTP4
20
P03/INTP3
19
P02/INTP2/NMI
18
VSS
12
P126/RTP6
7
P102/TI7/TO7
84
P101/TI6/TO6
83
P100/TI5/TO5
82
P64/RD
77
VSS
72
P67/ASTB
80
P65/WR
78
P66/WAIT
79
AVREF0
24
AVDD
23
P122/RTP2
3
P124/RTP4
5
P84/A4
52
P44/AD4
60
P42/AD2
58
P54/A12
68
P93
98
P94
99
P40/AD0
56
P86/A6
54
P50/A8
64
P46/AD6
62
P56/A14
70
VDD
9
P95
100
P123/RTP3
4
P47/AD7
63
P45/AD5
61
P87/A7
55
P85/A5
53
P83/A3
51
P51/A9
65
P43/AD3
59
P53/A11
67
P55/A13
69
P57/A15
71
P62/A18
75
P10/ANI0
25
P33/TI1
89
P41/AD1
57
P125/RTP5
6
XT2
13
RESET
15
XT1
14
VDD
81
P24/BUZ
44
P23/PCL
43
P25/SI0/
45
P26/SO0
46
P80/A0
48
P27/SCK0
47
P82/A2
50
P81/A1
49
P22/ASCK1/SCK1
42
P21/TxD1/SO1
41
P130/ANO0
34
AVSS
33
P131/ANO1
35
AVREF1
36
P71/TxD2/SO2
38
P70/RxD2/SI2
37
P20/RxD1/SI1
40
P72/ASCK2/SCK2
39
P17/ANI7
32
P16/ANI6
31
P11/ANI1
26
P12/ANI2
27
P14/ANI4
29
P13/ANI3
28
P15/ANI5
30
P121/RTP1
2
P120/RTP0
1
X1
11
P00/INTP0
16
P06/INTP6
22
R59
10k
R56
0
R69
0
C1
16V3300uF
+
R77
10k
R54
100
C17
100p
C20
100p
IC8
LB1846M
C19
100p
CN9
MOLEX 52807-3010
C28
16V10uF
+
R72
10k
R55
10k
R73
0
R6
10k
C14
0.1u
Q11
DTC114YUA
C15
100p
C24
100p
Q7
FSS133
R52
4.7k
IC4
uPD784215AGC
R68
10k
R60
0
R78
0
R7
1k
C3
16V100uF
+
C22
2200p
R92
0
C16
100p
VP
VP
VCC
VCC
Stepping Motor Driver IC
5-4.
Printer drive circuit
LEDSA1
LEDSB1
LEDSC1
LEDSD1
LEDSE1
LEDSF1
LEDSG1
LEDSTR
LEDSA0
LEDSB0
LEDSC0
LEDSD0
LEDSE0
LEDSF0
LEDSG0
LEDDP0
LEDCOM0
LEDCOM1
LEDCOM2
LEDCOM3
LEDCOM4
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
I1
1
I2
2
I3
3
I4
4
I5
5
I6
6
I7
7
GND
8
COM
9
O7
10
O6
11
O5
12
O4
13
O3
14
O2
15
O1
16
I1
1
I2
2
I3
3
I4
4
I5
5
I6
6
I7
7
GND
8
COM
9
O7
10
O6
11
O5
12
O4
13
O3
14
O2
15
O1
16
R4
4.7k
CN1
MOLEX 52044-2145
R2
4.7k
IC1
ULN2003AFW
Q1
2SD1626
Q2
2SD1626
R3
10k
IC2
ULN2003AFW
R5
10k
VLED
VLED
Display Driver IC