Panasonic SA-AK88 Manuale di servizio - Pagina 38
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SCHEMATIC DIAGRAM-2
:POSITIVE VOLTAGE LINE
1.5V
P-P
F=16.9344MHz
C722
10P
C721
1.6V
10P
1.6V
E
(0.1V)
3.2V
B
R710
10
2.4V
L
A
(1.2V) 0.2V
1.7V
R741
47K
1.7V
1.7V
R742
220K
PLAY
2ms. 0.1V/DIV.
A
B
C
D
TP1
TP3
TP4
S701
(REST)
TP2
7.8V
1
2
3
4
5
TP16
:CD-DA/V-CD(AUDIO & VIDEO) SIGNAL LINE
N
M
C731
6.3V220
C730
0.1
61
62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
3.3V
V
60
DD
X2 OUT
59
0.6V
X1 IN
58
P-P
57
Vss
0V
T
SBCK
F=16.9344MHz
56
SUBC
PLAY
55
VCOF2
54
53
PCK
384FS
T
13.3ms.
52
IC702
AVss2
MN662790RSC
51
3.3V
AV
2
SERVO PROCESSOR/
50
DD
0V
DIGITAL SIGNAL PROCESSOR/
VCOF
49
DIGITAL FILTER/
48
PLLF
PLAY
D/A CONVERTER
DSLF
47
PLAY
DRF
46
1V
IREF
T
45
0.9V
P-P
44
ARF
PLAY
WVEL
43
0.5 s. 0.2V/DIV.
1.7V
DSLF2
42
PLLF2
T
41
40
39
38
37
36
35
34
33
32
31
30
0.6V
P-P
A B C
D
E
F
G H I
E
F
G
H
I
J
K
TP5
TP6
TP7
TP8
TP12
TP13
TP14
TP15
6
7
8
9
10
11
12
13
R717
R719
100
0
PLAY
2.2V
P-P
1kHz, 0dB
R718
R720
100
0
5.1V
3.3V
1.6V
BCLK
1
1.6V
PLAY
LRCK
2
3.2V
0V
(2.4V)
SRDATA
3
3.3V
DV
1
4
DD
0V
13.3ms.
DVss1
5
0V
TX
6
3.2V
3.2V
(2.9V)
MCLK
7
0V
MDATA
8
0V
3.2V
MLD
9
PLAY
SENSE
10
3.2V
/FLOCK
11
0V
/TLOCK
12
F=75Hz
0V
BLKCK
13
3.2V
3.2V
SQCK
14
3.3V
SUBQ
15
0V
13.3ms.
DMUTE
16
0V (3.3V)
STAT
17
3.2V
3.2V
/RST
18
SMCK
19
0V
13.3ms.
CSEL
20
29
28
27
26
25
24
23
22
21
PLAY
2ms. 0.1V/DIV.
A
B
C
D
E
F
G
L
M
N
O
P
TP18
TP17
TP20
TP19
C743
0.1
14
15
16
17
18
19
20
TO
MAIN(CONTROL)CIRCUIT
(CN307) ON SCHEMATIC
DIAGRAM-18
:CD-DA/V-CD(AUDIO) SIGNAL LINE
3.3V
5V
TP21
A
TP23
B
V
U
T
S
PLAY
3.2V
0V
F=44.1kHz
PLAY
R
P
Q
0.2 s. 1V/DIV.
O
K
J
I
H
G
F
R753
10
D
C
0.2V
P-P
Q
R
S
T
U
V
21
22
23
24
25
26
27
28
3.2V
0V
C753
470P
3.3V
B
A
CN702
29
30