Panasonic SA-AK88 Service Manual page 41

SCHEMATIC DIAGRAM-9
VIDEO CIRCUIT
J
I
H
G
F
E
NC
1
Vss
2
1.6V
D CD BCK
3
(2.4V) 0V
C 4 CD DATA
1.6V
B CD LRCK
5
(0V) 3.2V
A CD C2PO
6
NC
7
NC
8
NC
9
(2.3V) 0.6V
A MD0
10
(2.3V) 2.7V
B 11 MD1
(0.3V) 2.7V
C MD2
12
(2.3V) 2.7V
D MD3
13
(0.3V) 0.6V
E MD4
14
(0.3V) 0.6V
MD5
15
F
Vss
16
(0.2V) 0.6V
G MD6
17
3.3V
18 V 3
DD
2V
H MD7
19
I/O Vss
20
(0.1V) 0.6V
MD8
21
I
3.3V
V 3
22
DD
(0.3V) 0.6V
J MD9
23
(0.2V) 0.6V
K MD10
24
(0V) 0.6V
L 25 MD11
(0.2V) 0.6V
M MD12
26
(0.3V) 0.6V
MD13
27
N
(0.3V) 0.6V
MD14
28
O
(0.3V) 0.6V
MD15
29
P
NC
30
NC
31
32 NC
:POSITIVE VOLTAGE LINE
:CD-DA/V-CD(AUDIO & VIDEO) SIGNAL LINE
K L M
128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100
PLAY
3.2V
0V
T=40ms.
PLAY
PLAY
3.2V 5V
0V
0V
F=44.1kHz
F=2.822MHz
0.2 s. 1V/DIV.
IC1000
MN89103M2
MPEG VIDEO
AUDIO DECODER
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
Q R S T U V W
N O P Q
99 98 97
1.3V
P-P
F=27MHz
PLAY
4.8V
PLAY
4.8V
0V
T 0.7ms.
0V
F=44.1kHz
PLAY
3.2V
4.8V
P-P
0V
F=16.9344MHz
COMPOS-OUT
X Y Z a b d e f
:CD-DA/V-CD(AUDIO) SIGNAL LINE
:V-CD(VIDEO) SIGNAL LINE
5V 5V
1.3V
0V
1.4V
0.9V
P-P
F=27MHz
3.3V
3.3V 3.3V
NC
96
NC
95
NC
94
PIO2 93
RESERVED
92
PIO0
91
RESERVED
90
RESERVED
89
RESERVED
88
3.3V
AV
DD 87
1.6V
DA XCK 86
AGND
85
RESERVED
84
RESERVED
83
3.3V
V 3
82
DD
0V R1006
CLK SEL(3)
81
Vss
80
3.3V R1010
CLK SEL(2) 79
3.3V R1011
CLK SEL(1)
78
3.3V R1004
CLK SEL(0)
77
AGND
76
0V
C-OUT
75
3.3V
AV
DD 74
1.2V
VREF
73
1.2V
VGAIN 72
AGND
71
3.3V
AV
70
DD
0V
Y-OUT
69
AGND
68
0.6V
67
3.3V
AV
DD 66
NC 65
L1002
2.7
C1013
100P
3.3V 3.3V
D
J
IC1003
TC7WU04FUT2L
INVERTER
GND
5 4
1.4V
6 3
0V
7 2
1.6V
Vcc
8 1
R1000
5.6K
X1000
(27MHz)
0.3V
P-P
F=27MHz
A
10K
10K
10K
10K
B
C
L1000
H 1.8 H
D
E