Panasonic SL-VP48 Service Manual page 67

SCHEMATIC DIAGRAM-7
B
VIDEO CIRCUIT
J
I
H
G
F
E
128 127
1 NC
2 V
SS
1.5V
D 3 CD BCK
(0.8V) 0V
C 4 CD DATA
1.4V
B 5 CD LRCK
(0V) 2.9V
A 6 CD C2PO
7 NC
8 NC
9 NC
(1.2V) 1.9V
A 10 MD0
(1.2V) 0V
B 11 MD1
(1.2V) 1.9V
C 12 MD2
(0.7V) 1.9V T
D 13 MD3
(1.3V) 0V
E 14 MD4
(1.1V) 1.9V
F 15 MD5
16 V
SS
(1V) 0V
G 17 MD6
3.2V
18 V 3
DD
(1V) 1.9V
H 19 MD7
20 I/O V
SS
(1.1V) 0V
I 21 MD8
3.2V
22 V 3
DD
(1.3V) 0V
J 23 MD9
(1.2V) 0V
K 24 MD10
(0.5V) 0V
L 25 MD11
(1.8V) 0V
M 26 MD12
(0.7V) 0V
N 27 MD13
(0.7V) 0V
O 28 MD14
(0.7V) 0V
P 29 MD15
30 NC
31 NC
32 NC
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
K L M N
126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111
PLAY
3V
0V
F=75Hz
PLAY
3V
0V
F=2.822MHz
PLAY
PLAY
3V
0V
0V
T 0.7ms.
23 s.
PLAY
0.2 s. 1V/DIV.
IC1000
MN89103M2
MPEG VIDEO
AUDIO DECODER
Q R S T U V W X Y
: POSITIVE VOLTAGE LINE
: CD-DA/VCD (AUDIO & VIDEO) SIGNAL LINE
3.2V
F=27MHz
O P Q
110 109 108 107 106 105 104 103 102 101 100 99 98 97
NC 96
NC 95
NC 94
2.2V
PIO2 93
P-P
RESERVED 92
F=27MHz
PDO0 91
RESERVED 90
PLAY
RESERVED 89
3V
RESERVED 88
0V
F=44.1kHz
AV 87
DD
3V
DA XCK 86
AGND 85
PLAY
RESERVED 84
2.8V
RESERVED 83
P-P
V 3 82
DD
F=16.9344MHz
2.8V
CLK SEL(3) 81
V 80
SS
0V
CLK SEL(2) 79
CLK SEL(1) 78
CLK SEL(0) 77
AGND 76
C-OUT 75
AV 74
DD
VREF 73
VGAIN 72
AGND 71
AV 70
DD
Y-OUT 69
AGND 68
COMPOS-OUT 67
AV 66
DD
NC 65
Z a b c d e
: CD-DA/VCD (AUDIO) SIGNAL LINE
: VCD(VIDEO) SIGNAL LINE
IC1003
TC7WU04FUT2L
INVERTER
(1.5V)
1.2V
5 4
(1.5V)
0V
6 3
(1.5V)
1.3V
2.6V
7 2
P-P
3.2V
8 1
R1000
5.6K
X1000
(27MHz)
3.2V
3.2V
1.4V
3.2V
0V R1006 10K
0V R1010 10K
3V R1011 10K
3V R1004 10K
0V
3.2V
1.1V
1.1V
3.2V
0V
0.6V
3.2V
L1002 L1000
2.7 H 1.8 H
C1013
100P
3.2V
J D
1.3V
3V
1.5V
0.5V
P-P
F=27MHz
R
S
T
U
V