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A
MAIN CIRCUIT
:POSITIVE VOLTAGE LINE
R314
R301
39K
4.7K
Q303
DTA114YUA106
POWER SUPPLY
(REMOTE)
2.5V
0V
80
2.5V
R326
L
1K
2.5V
1
REMKEY
G
2.5V
2
DOCTOR
2.1V
3
VMONITOR2
2.5V
4
VMONITOR1
P
2.5V
5
VMONITOR3
O
2.5V
6
KEY2
N
2.5V
7
KEY1
M
2.5V
8
OPEN
2.5V
9
CHARGE1
2.5V
Z
BUZ
10
(1.2V)
0V
N
FG
11
0V
DOT
12
T
0V
H
MUTE LD
13
0V
m
ECS
14
0V
b
LED CLOCK
15
2.5V
16
PLAY
2.5V
A
17
MLD
2.5V
B
18
MCLK
0V
C
19
MDATA
0V
D
20
STAT
E
F
21
q
r
n
a
M
R302
100K
13
14
15
:PLAYBACK SIGNAL LINE
R308
R312
8.2K
27K
2.5V
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
SEG10
60
SEG11
59
2.5V
HOLD
58
0V
R351
100K
ASHOCK
57
0V
R350
100K
A.S.SEL
56
2.5V
TYPSEL2
55
PLAY
IC301
TYPSEL3
54
2.5V
C2BBGE000661
X3SEL
53
0V
0V
0V
SYSTEM CONTROL
DUMMY
52
T
13.3ms.
PMSEL
51
PLAY
PMSEL2
50
2.5V
CHGSEL
49
2.6V
0V
KANASEL
48
P-P
T
13.3ms.
0V
X3SELCD
47
0.2
s. 1V/DIV.
0V
PLAY
LED
46
2.5V
0V
(2.5V)
X2
45
2.2V
0V
0V
JUDGE/ XBS
44
P-P
F=75Hz
0V
RW
43
0V
(2.5V)
0.2
s. 1V/DIV.
PC1
42
2.5V
PC2
41
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
R310
1K
Q551
DTA143EUA106
POWER SUPPLY
(OPTICAL)
3.2V
2.5V
0V
X301
(32.7kHz)
R305
3.3M
K
J
I
H
F
E
D
C
A
B
16
17
13
14
S310
(HOLD)
ON
OFF
R342
1K
R366
39
2.5V
Q362
UN521MTX
SWITCHING
1.8V
21
Q361
(0.8V)
0V
V
22
UN521MTX
0V
j
LED DRIVE
23
0V
u
i
24
1.2V
0V
h
E
25
0V
g
26
0V
27
F
f
0V
e
28
U
2.5V
d
29
1.2V
30
B
1.2V
A
31
1.2V
C
32
1.2V
D
33
1.2V
G
34
0V
35
I
(0V)
2.4V
K
36
0V
P
37
(2.8V)
0V
J
O
38
1.4V
Q
39
1V
S
40
Y
A
t
X
R
L
B
W
R509
330
2.5V
2.5V
3.6V
18
19
20
A
B
C
D
R
N
O
Q
P
12
11
10
9
8
6
5
4
3
2
1
IC502
C3ABMB000033
16M DRAM
15
16
17
18
19
21
22
23
24
25
26
F
G
H
I
J
E
K
M
L
1.8V
A
B C D E F G H I J
R
K L M N O P
Q
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DV
2
NC
DD
80
1.8V
1.7V
SPOUT
DV
1
DD
79
IC501
P-P
TRV+
DVss1
MN6627911AC
78
1.2V
TRV-
F=16.9MHz
X1
SERVO PROCESSOR /
77
1.2V
TR+
DIGITAL SIGNAL PROCESSOR /
X2
76
2.5V
DIGITAL FILTER & D/A CONVERTER
2.1V
TR-
NTEST
75
P-P
FO+
TXTCK
74
FO-
PLAY
F=16.9MHz
TXTD
73
2.5V
IOV
DD
1
DQSY
72
PLAY
TBAL
0V
PMCK
71
2.8V
0V
F=75Hz
FBAL
P-P
SPPOL
70
PLAY
2.4V
FE
0.5V
NRST
69
0.2
s. 1V/DIV.
PLAY
0V
P-P
2.5V
TE
STAT
68
RFENV
1kHz, 0dB
SBCK
67
0V
1.2V
OFT
SMCK
66
T
13.3ms.
PLAY
NRFDET
PWMSEL
65
0V
BDO
0.9V
BLKCK
PLAY
64
P-P
2.5V
2.5V
LDON
MLD
63
0V
ARF
MDATA
0.5
s. 0.2V/DIV.
62
0V
2.5V
IREF
T
13.3ms.
MCLK
61
PLAY
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
0.5
s. 1V/DIV.
R604
270
C516
0.1
21
22
D501
R516
SB00703QTL
100K
B
D
2.4V
G
A
0V
S
Q502
2SK1958T1
SWITCHING
C501
12P
C522
12P
D
R514
C514
680
1000P
F
E
R511
1K
A
R512
1K
C
B
2.5V
0V
RJ503
0
A
R603
270
B
C
R515
15
SL-CT700(GK,GD) MAIN CIRCUIT DIAGRAM
23
24
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