Panasonic SA-AK88 Service Manual page 25

SCHEMATIC DIAGRAM-18
:POSITIVE VOLTAGE LINE
:NEGATIVE VOLTAGE LINE
14.8V
7.7V
-7.9V
5V
8.6V
10.4V
CN303
MM I/O
1
NC 2
NC 3
NC 4
NC
5
NC
6
NC 7
NC 8
TO
+B(4) 9
PANEL CIRCUIT
MIC 10
(CP603) ON
11
M.GND
SCHEMATIC
NC 12
DIAGRAM-13
13
SD
14
NC
15
SER5
16
SER3
17
NC
18
MUTEA
19
P.CONT
20
LVL1
CP305
+B(3) 1
+B(1) 2
+B(4) 3
TO
GND 4
DPL CIRCUIT
5
DATA
(CN802) ON
6
CLK1
SCHEMATIC
7
CLK4
DIAGRAM-16
8
NC
CP304
Lch OUT
1
Rch OUT
2
GND
3
TO
Lch IN
4
DPL CIRCUIT
Rch IN
5
(CN801) ON
6
C IN
SCHEMATIC
7
S IN
DIAGRAM-16
8
GND
9
NC
CN307
VCOF
1
REST SW 2
SUBC 3
/RST 4
STAT 5
6
SBCK
7
SUBQ
8
SQCK
9
BLKCK
MLD 10
11
MDATA
12
MCLK
13
P.GND
14
384FS
TO
+B(1) 15
CD SERVO
IPFLAG 16
CIRCUIT(CN702)
CLDCK 17
ON SCHEMATIC
TX 18
DIAGRAM-2
19
D.GND
LRDK 20
SRDATA 21
22
BCLK
23
+B(2)
DISCK 24
DILRCK 25
26
DIDATA
27
ID V
DD
28
Rch IN
29
A.GND
Lch IN 30
:CD-DA/V-CD(AUDIO) SIGNAL LINE
:CD-DA/V-CD(AUDIO&VIDEO) SIGNAL LINE
Q
R
S
T
U
V
W
X
Y
A
B
C
R371
2.2K
Z
a
R372
2.2K
b
d
C383 16V10
e
C384 16V10
f
C390
82P
R466
R467
R482 1K
R473 4.7K
R483 1K
R474 4.7K
R475
4.7K
R476 4.7K
R477
4.7K
R484 100
R400 1K
R458 100
R459
100
R460 68
R462
R485
C245
C445
:MIC SIGNAL LINE
:SURROUND SP. DRIVE SIGNAL LINE
:CENTER SP. DRIVE SIGNAL LINE
TO
PANEL CIRCUIT(CP602)
ON SCHEMATIC DIAGRAM-15
1
2 3 4 5 6 7 8
CN302
F
E
D
G
C
3.3V
7.8V
K
5.1V
Q360-362,365
KRC101STA
INTERFACE
R464
10K
Q360
0V
R465
10K
10K
Q361
0V
(4.8V)
10K
T
Q362
U
4.9V
V
W
X
Q365
Y
0V
Z
a
b
d
e
f
R461
1K
g
1K
h
1K
i
50V1 R211 2.2K
50V1 R411 2.2K
9 10 11 12 13 14 15 16 17 18 19 20 21 22
L M N A B C D E F G
5V
8.6V
10.4V
14.8V
-7.9V
7.7V
5V
O
0V
(4.8V)
P
4.9V
Q
0V
R
S
g
h
23 24 25 26
C B A