Panasonic SY-PA100 Service Manual page 60

SCHEMATIC DIAGRAM-4
C12 0.1P
+3.3D
14 28
GND VCC
O 1 A14 22
OE
N A13
26
M A12
2 WE 27
L 23 A11
K 21 A10 20
CE
J 24 A9
I A8
25
H A7 D7 H
3 19
G 4 A6 D6 18 G
F 5 A5 D5 17 F
E 6 A4 D4 16 E
D A3 D3 D
7 15
C A2 D2 C
8 13
B 9 A1 D1 12 B
A 10 A0 D0 11 A
IC2
+3.3D
C3BBFC000244
(256KBIT STATIC RAM)
C14 0.1P
23 33
VCC
BYTE
1
RY/BY
CE 12
44 RESET
14
OE
2 18
R 3 17
WE 43
Q 34 16
P 15 15 P
35 31
O 14 14 O
36 29
N 37 13 13 27 N
M 38 12 12 25 M
L 39 11 11 22 L
K 10 10 K
40 20
J 9 9 J
41 18
AD
I 42 8 8 16 I
DT
H 4 7 7 30 H
G 5 6 6 28 G
F 5 5 F
6 26
E 4 4 E
7 24
D 8 3 3 21 D
C 9 2 2 19 C
B 10 1 1 17 B
A 0 0 A
11 15
VSS VSS
23 33
IC14
C3FBKD000167
(4MBIT FLASH ROM)
IC3
TC7W14FTE12L
(SCHMIT INVERTER)
GND
1 2 3 4 5 6 7 8
D1
C18 R7
MA111-TX
0.0022P 100K
R8
100
R103
22K
R114
150
X2
C27
QSXG1A4515A
10P
A A1
1
B 2 A2
P 3 D15
O 4 D14
N D13
5
M D12
6
7 VSS
8 VDD
L 9 D11
K D10
10
J D9
11
I 12 D8
H 13 D7
G 14 D6
VSS
15
F D5
16
E 17 D4
D 18 D3
C 19 D2
B D1
20
A D0
21
22 CK0
23 VDD
24 SK00
SK01
25
KB0
26
27 KB1
28 NC
29 KB2
KB3
30
C20 C21
0.1P 0.1P
+3.3D
VCC
R9 D2
100K MA111-TX
+3.3D
R10 D3
C4 100K MA111-TX
0.1P
2 TG CLOCK
D
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
IC5
C1BB00000636
(TONE GENETATOR LSI)
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
C22 C23
0.1P 0.1P
R11 C28
100 0.047
C B A
+3.3D
L E D M K
DT5
80
DT2 79
NC 78
ST13 77
DT9
76
DT6
75
DT1 74
VDD 73
DT14 72
DT8
71
DT7
70
DT0 69
DT15 68
AD16 67
VSS
66
AD0
65
AD15 64
AD1 63
AD14 62
AD2
61
AD13
60
AD3 59
VDD 58
VSS 57
AD12
56
AD4
55
AD11 54
AD5 53
AD10 52
AD6
51
S R I H J
SY-PA100
MAIN SCHEMATIC DIAGRAM