Panasonic RR-DR60 Service Manual page 10

:POSITIVE VOLTAGE LINE
C O N
S5
(HOLD)
R34
OFF
1M
C
ON
S7
(MODE SELECT)
R35
F.LOCK
1M
C
CLOCK/
MIC SET
S6
(SPEED CONTROL)
R36
OFF
1M
C
ON
C25
0.1
R23
560
A
B
C
D
:VOICE SIGNAL (DIGITAL)LINE
100 99 98 97 96 95 94 93 92 91 90
MEMI/O0
1
MEMI/O1
2
MEMI/O2
3
MEMI/O3
4
3.3V
V
5
DD
MEMI/O4 T
6
MEMI/O5
7
MEMI/O6
8
MEMI/O7
9
IC2
MEMR/B
10
MN1931712BB
RXDI
11
DSP
MEMCLE
12
Vss
13
/MEMRE
14
/MEMWE
15
/MEMALE
16
/SYNCO
17
3.3V
V
18
DD
3.3V
AV
19
DD
0.8V
VCO IN
20
3.2V
0.8V
PC OUT
21 P-P
AVss
22
F=8MHz
T 27ms.
Vss
23
1.6V
OSCF0
24
OSCF1
25
26 27 28 29 30 31 32 33 34 35 36
R25
1M
R44
100K
3.3V 3.3V
R31 R33
390K 120K
H G F T P
89 88 87 86 85 84 83 82 81 80 79 78 77 76
P15
P14
P13
3.3V
3.3V
P12
P11
0V
0V
170us. P10
T 25.6ms.
V
3.3V
0V
T 27.4ms.
3.3V
0V Vss
T 2us.
POBF
PIBE
3.3V 3.3V
/PRE
0V 0V /PWE
T 180us.
PCS
/GO1
PRACK
37 38 39 40 41 42 43 44 45 46 47 48 49 50
R32
120K
S3
(PLAY/SEL/STOP)
(UP)
R42
(DOWN)
180K
(SET)
R40
100K
3.3V 3.3V
75
74
73
72
71
70
P9
69
P8
68
3.3V
67
DD
0.5V (0.3V)
P7 b
66
0.5V (0.3V)
P6 a
65
0.5V (0.3V)
P5
64
Z
0.5V (0.3V)
P4
63
Y
0.5V (0.3V)
P3
62
X
0.5V (0.3V)
P2
61
W
0.5V (0.3V)
P1
60
V
0.5V (0.3V)
P0 U
59
58
0V
57
K
3.3V
56
E
3.3V
55
R
3.3V
Q
54
3.3V
S
53
52
51
3.3V 3.3V
I
J
R41
180K
A
L
M
B
D