Panasonic SJ-MD150 Servise Manual page 76

SCHEMATIC DIAGRAM-5
A
MD SERVO CIRCUIT
C83
0.1
R58
6.8K
C
N
L
R48 0
F
1.7V (1.6V)
I
G
Q
D
J
E
O
K
M
R
C84 0.1
B
A
B
C
D
0V ( 0V)
E
0V ( 0V)
F
G
C128
0.1
:POSITIVE VOLTAGE LINE
3.3V
5V
2.6V
S A W H V T U P
C22
1000P
R47
47K
R59
68K
C70
0.012
C62
220P
C82 R50
0.047 1K
100 99 98 97 96 95 94 93 92 91 90
1.3V
ADIP
1
1.3V
PLAY
LNP
2
1.3V
0.1V
FE
3
P-P
1.3V
TE F=16.9344MHz
4
2ms. 50mV/DIV.
1.3V
AS
5
1.3V
PLAY
DRMONI
6
0V
0.1V
BAT
7
P-P
AMONI F=16.9344MHz
8
1.3V 2ms. 50mV/DIV.
VREFI
9
1.3V
TOFS
10
1.3V
FBAL
11
1.3V IC3
TBAL
12
1.3V MN66616RA4
TGAIN
13
1.3V ATRAC ENCORDER/DECORDER,
ASGAIN
14
SERVO SIGNAL PROCESSOR
1.3V
ABGAIN
15
2.6V
AV 1
16 DD
0V
AVss1
17
PLAY
1.3V
FOD
18
1.3V
TRD
19
1.3V
TVD
20
0.5 s. 1V/DIV.
1.3V
SPD
21
3.3V
SPON
22
3.3V PLAY
TVON
23
2.6V
DV 0
24 DD
0V
FG
25
5 s. 1V/DIV.
26 27 28 29 30 31 32 33 34 35 36
A B C D E F G H I J K L M N O P Q R
:MD PLAYBACK SIGNAL LINE :MD RECORDING SIGNAL LINE
C110
0.1
IC9
RN5RZ26BA-TR
REGULATOR
L4
2.2
C90
8P
C91
8P
89 88 87 86 85 84 83 82 81 80 79 78 77 76
MONI2
PLAY
1.9V MONI3
3.2V
P-P
REFM
0V EREFM
T 11 s.
RX2
0.7V PLAY RX1
3.2V
P-P
TX
0V
DATA
T 23 s.
BCK
PLAY LRCK
3.2V
SDAR
SDAP
0V
T 0.36 s.
SWS
SCL
FS384
PLAY
DVss1
3.2V
P-P
IV 1
DD
3.2V
DV 1
DD
F=16.9344MHz
SGSYNC
PLAY
0V
SCTSY
3.2V
MDISY
0V
SSDR
T 13.3ms.
3.2V SSDW
SSCK
0V
SELAD
37 38 39 40 41 42 43 44 45 46 47 48 49 50
2.6V
C15
4V10
2.6V 3.3V 0V
3 2 1
4 5
3.3V
C73
0.1
H
C80
0.1
75
74
3.3V
73
72
0V (3V ) 3V
71
0V (3V ) 3V
70
0V
69
0V
68
0V
67
0V
66
0.8V
65
0V (1.7V) 0V
64
1.7V
63
1.7V R108 270
62
1.7V R147 1K
61
0V
60
3.3V C79 0.1
59
2.6V C76 0.1
58
0V
57
0V
56
0V
55
3.3V (0.4V) 0.1V
54
3.3V
53
3.3V
52
0V
51
C58
1000P
R42
1K
3.3V
A
B
C
A
B
C
D
E
G
B
C
N
O
M
L
S