Panasonic SA-DK3 Service Manual page 163

SCHEMATIC DIAGRAM-25
C
MAIN CIRCUIT
N M
R420
R407
1 3
X401
G
(8MHz)
2
H
I
R402
4.7K
:POSITIVE VOLTAGE LINE
:NEGATIVE VOLTAGE LINE
L K J I H G
16 15 14 13 12 11
4.9V
DOK2
17
DSP2
1K 0V
CNVss
18
4.9V
RESET
19
5V
DRST2
20
2.1V
P40 NC
21
P-P
2.3V
X IN
22
680 2.4V
F=8MHz
X OUT
23
Vss
24
R403
2.2V
MUT T
25
330
P-P
(5V) 0V
MUT F
26
MUT SW
27 F=8MHz
MUT C
28
0V
MUT S8
29
EXP23
30
EXP22
31
0V
EXP21
32
MJU ONKETU
33 34 35 36 37 38
R416 1K
J
R417 1K
K
R418 1K
L
R428
4.7K
:AUDIO SIGNAL LINE
TEST TERMINAL
6 5 4 3 2 1
CP401
A B C D
F E D C B A D C B
R406 R440
10K 10K
10 9 8 7 6 5 4 3 2 1
0V
ESW
64
DSP1
EXP11
63
EXP12
62
EXP13
61
RL2
60
AVss
59
IC401
5V
VREF
58
M38037M8108F
5V
Vcc
57
SYSTEM CONTROL
5V
CNTA1
56
0V
RL1
55
CNTA2
54
0V
OD SBMIX
53
0V
DDI
52
0V
INITITAL DDO
51
0V
DCK
50
P37 OE
49
ROMKORE
39 40 41 42 43 44 45 46 47 48
R431
1K
R427
R425
5V
-7.6V
7.8V
7.7V
9.1V
7.7V
14.9V
A
J
K
R424 10K
L
R422 1K
T
R421 10K
R426 1K
U
W
1K
S
1K
V
X