Panasonic SA-AK78 Service Manual page 28

SA-AK78
SCHEMATIC DIAGRAM-2
1.6V
P-P
F=16.9344MHz
X701
16.9344 MHz
R714
0
C722 C721
10P 10P
R712
220
R709 R741
68K
47K
C716
820P
R742
220K
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R721
100
C731
6.3V220
C730
C754
0.1
470P
C723
10V220
C724
0.1
61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
3.2V
60
VDD
1.5V
59
X2
OUT
1.5V
0.7V
58
X1 IN
P-P
57
VSS
F=16.9344MHz
56
SBCK
PLAY
3.2V
55
SUBC
54
0V
VCOF2
IC702
T = 13.3ms
53
PCK
MN662790RSC
52
EFM SERVO PROCESSOR PLAY
DIGITAL SIGNAL PROCESSOR/
51
AVSS2
DIGITAL FILTER/
3.2V
D/A CONVERTER
T = 13.3ms
50
AVDD2
49
VCOF
0.5V
48
PLLF
1.6V
47
DSLF
PLAY
1.6V
46
DRF
PLAY
1V
45 F=75Hz
IREF
1.6V
0.6V
44
ARF P-P
43
WVEL
0.5us 0.2V/DIV
1.5V
42 DSLF2
41
PLLF2
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
0V
((3.2V))
J
702
(Vref)
: + B Line
: CD Signal Line
18
R717 C727
1K
50V1
C725
1000P
C726
1000P
R718 C728
50V1
1K
C743
PLAY
0.1
2.2V
P-P
1KHz, 0dB
C753
470P
C733
C732
17
0.1
6.3V220
80
1
BCLK
LRCK 2
SRDATA
3
3.2V
DVDD1
4
DVSS1
5
1.6V
TX
6
3.2V
MCLK
7
0.5V
MDATA
8
3.2V
MLD
9
...3.2V
SENSE 11
10
12
0V
/FLOCK
11 10
8
/TLOCK
12 9
0V
BLKCK
13
0V ((0.2V))
SQCK
14
3.2V ((3.1V))
...3.2V
SUBQ
15
0V
DMUTE
16
0V ((3.1V))
STAT
17
3.1V
/RST
18
C745
SMCK
19
1000P
CSEL
20
PLAY
PLAY
3.2V
0.1V
P-P
T = 13.3ms.
2ms 0.1V/DIV
PLAY
0.4V
P-P
2ms 0.1V/DIV
28
23
22
21
CN702
Lch OUT
19
A.GND
18
Rch OUT
17
+3.3V
16
D.GND
15
LD SW
14
TX
13
+7.5V
12
P.GND
11
MCLK
10
M DATA
9
MLD
8
(SPEED)
7
BLKCK
6
SQCK
5
SUBQ
4
STAT
3
/RST
2
REST SW
1
7
6
R753
10
4
3
PLAY
...3.2V
0V
S701
T = 13.3ms.
REST SW
1
0V
16 15
TO
PANEL
CIRCUIT
(CP606) ON
(SCHEMATIC
DIAGRAM-10...GC)
(SCHEMATIC
DIAGRAM-11...GN)