Akai PDP4216M, Service Manual, Page: 19 / 86

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Title
Number Revision Size
B
Date: 14-Oct-2005 Sheet of
File: F:\4228\4228_temp_ddb\4228_Temp.DDB Drawn By:
15_TELETEXT_DECODER
SCL_NVRAM
SDA_NVRAM
CVBS0 CVBS1
SCL_S3V
SDA_S3V
/RD_SRAM
/WR_SRAM
D7_SRAM D6_SRAM D5_SRAM D4_SRAM D3_SRAM D2_SRAM D1_SRAM D0_SRAM
R_OUT G_OUT B_OUT
XTALIN
XTALOUT
/WR_SRAM
/RD_SRAM
A17_SRAM
A16_SRAM
A15_SRAM
A14_SRAM
A13_SRAM
A12_SRAM
A11_SRAM
A10_SRAM
A9_SRAM
A8_SRAM
A7_SRAM
A6_SRAM
A5_SRAM
A4_SRAM
A3_SRAM
A2_SRAM
A1_SRAM
A0_SRAM
P2.7
1
P3.0
2
A17_LN
3
P3.1
4
P3.2
5
P3.3
6
A15_LN
7
A14
8
/RD
9
/WR
10
VSSC
11
VSSP
12
P0.5
13
NC
14
A7
15
SCL_NVRAM
16
SDA_NVRAM
17
P0.2
18
NC
19
NC
20
VPE
21
P0.3
22
A6
23
P0.4
24
P3.7
25
A5
26
A4
27
P0.
6
28
P0.
7
29
V
SSA
30
CVBS0
31
CVBS1
32
A
15_BK
33
SYNC_FI
LTER
34
IR
E
F
35
A1
3
36
A1
2
37
A3
38
A2
39
A1
40
FRA
M
E
41
VP
E
42
/C
O
R
43
P3.
4
44
VDDA
45
B
46
G
47
R
48
A0
49
RAM
B
K1
50
RAMBANK0
51
VDS
52
HSYNC
53
P3.5
54
VSYNC
55
NC
56
NC
57
NC
58
P3.6
59
VSSP
60
NC
61
VSSC
62
VDDC
63
A11
64
A10
65
A9
66
A8
67
NC
68
OSCGND
69
XTALIN
70
XTALOUT
71
/RESET
72
RESET
73
NC
74
VDDP
75
P1.
0
76
A
16_LN
77
P1.
1
78
P1.
2
79
P1.
3
80
SCL
81
SD
A
82
P1.
4
83
P1.
5
84
AD0
85
AD1
86
AD2
87
AD3
88
AD4
89
AD5
90
AD6
91
AD7
92
P2.
1
93
P2.
2
94
P2.
3
95
P2.
4
96
P2.
5
97
P2.
6
98
V
SSC
99
P2.
0
100
U1501
I/O8
29
I/O7
28
I/O6
27
I/O5
26
I/O4
25
I/O3
23
I/O2
22
I/O1
21
/WE
5
/CE1
30
CE2
6
GND
24
/OE
32
A17
9
A16
10
A15
7
A14
11
A13
4
A12
12
A11
1
A10
31
A9
2
A8
3
A7
13
A6
14
A5
15
A4
16
A3
17
A2
18
A1
19
A0
20
VCC
8
U1502
RP1502 RP1501
RP1503
RP1504
RP1505
RP1506
R1508
R1509
D7_SRAM
D6_SRAM
D5_SRAM
D4_SRAM
D3_SRAM
D2_SRAM
D1_SRAM
D0_SRAM
R1506
R1507
D3V3D
D3V3D
C1505 C1504
R1505
X1501
A17_SRAM A16_SRAM
A15_SRAM
A14_SRAM
A13_SRAM A12_SRAM
A11_SRAM
A10_SRAM
A9_SRAM
A8_SRAM
A7_SRAM
A6_SRAM
A5_SRAM A4_SRAM A3_SRAM A2_SRAM A1_SRAM A0_SRAM
D3V3D
D3V3D
D3V3_TT_A
3450_rest
TT_R
TT_G
TT_B
TT_FSO
SCL_S3V
SDA_S3V
TT_VVVS
TT_VVHS
TV_CVBS_S#
C1501 R1501
C1502
R1502 R1503 R1504
TV_CVBS_M#
C1503
C1506 C1507 C1508
C1510
D3V3D
GPIO_P30
GPIO_P31
GPIO_P33
GPIO_P32
TT_SEL
R1510
R1511
R1512
C1511
R1513
R1514
R1515
C1513
C1512
C1514
C1515
SGND SGND
SGND
SGND
Q1502
R1520
R1519
D1502
D3V3D
SC1_SW0 SC1_SW1 SC2_SW0 SC2_SW1
SC1_SW0 SC1_SW1
SC2_SW0 SC2_SW1
SC1_SW
Q1504
R1526
R1525
D1504
D3V3D
Q1501
R1517
R1516
D1501
D3V3D
SC2_SW
Q1503
R1523
R1522
D1503
D3V3D
NC0
1
NC1
2
NC2
3
GND
4
SDA
5
SCL
6
WP
7
VCC
8
U1503
D3V3D
SCL_NVRAM
SDA_NVRAM
R1527
D3V3D
R1521
R1528
C1516 C1517 C1518
C1519
SGND
R1529
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