Casio PCRT275 Owners Manual - Page 16

Power circuit, Reset circuit

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C7 16V220uF C32 16V1000uF R80 270 1/4W 5-2. Power circuit To power supply unit CN11 HEC3600-010510 VACP 1 GND 2 3 VACP GND CN10 1 2 JST B2PS-VH VP D2 VLED 1SR154-400 + D10 RB160L D9 1SR154-400 VCC + R94 0 R93 0 D6 1SR154-400 + + CN8 BAT+ 3 BAT+ 2 BAT- 1 MOLEX 53253-0310 C13 16V1000uF C21 16V1000uF 1 OUT 2 VDD 4 VSS 5-3. Reset circuit IC6 S-80819CNNB-B8E VDD R81 330k 100 P95 99 P94 98 P93 97 P92 96 P91 95 1 2 P120/RTP0 P121/RTP1 3 4 P122/RTP2 5 P123/RTP3 6 P124/RTP4 P125/RTP5 7 8 P126/RTP6 9 P127/RTP7 10 VDD X2 11 12 X1 13 VSS 14 XT2 XT1 15 RESET 16 17 P00/INTP0 18 P01/INTP1 P02/INTP2/NMI 19 P03/INTP3 20 21 P04/INTP4 22 P05/INTP5 23 P06/INTP6 AVDD 24 25 AVREF0 P10/ANI0 IC4 uPD784215AGC P90 94 TEST/(Vpp) 93 P37/(EXA) 92 P36/TI01 91 P35/TI00 90 P34/TI2 89 P33/TI1 88 P32/TO2 87 C29 2200p C30 0.1uF P31/TO1 86 P30/TO0 85 P103/TI8/TO8 84 P102/TI7/TO7 83 P101/TI6/TO6 82 P100/TI5/TO5 81 VDD 80 P67/ASTB 79 P66/WAIT 78 P65/WR 77 P64/RD 76 R62 1.8M VDD D3 1SR154-400 P63/A19 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 26 27 P11/ANI1 P12/ANI2 28 P13/ANI3 29 30 P14/ANI4 31 P15/ANI5 P16/ANI6 32 P17/ANI7 33 34 AVSS 35 P130/ANO0 36 P131/ANO1 AVREF1 37 38 P70/RxD2/SI2 39 P71/TxD2/SO2 40 P72/ASCK2/SCK2 P20/RxD1/SI1 41 42 P21/TxD1/SO1 43 P22/ASCK1/SCK1 44 P23/PCL P24/BUZ 45 46 P25/SI0/ 47 P26/SO0 48 P27/SCK0 P80/A0 49 P81/A1 50 P82/A2 - 14 -

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— 14 —
5-2.
Power circuit
VACP
GND
VACP
GND
BAT+
BAT+
BAT-
1
2
3
1
2
3
1
2
R80
270
1/4W
C32
16V1000uF
+
D6
1SR154-400
C7
16V220uF
+
R94
0
CN11
HEC3600-010510
C13
16V1000uF
+
R62
1.8M
D9
1SR154-400
CN8
MOLEX 53253-0310
CN10
JST
B2PS-VH
C21
16V1000uF
+
D2
1SR154-400
D3
1SR154-400
D10
RB160L
R93
0
VP
VLED
VDD
VCC
To power
supply unit
5-3.
Reset circuit
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
IC4
uPD784215AGC
OUT
1
VDD
2
VSS
4
R81
330k
C30
0.1uF
IC6
S-80819CNNB-B8E
C29
2200p
VDD