– 37 –
MD-X8H
Figure 37 BLOCK DIAGRAM (4/4)
21
1
2
8
3
15
14
10
16
1
31
17
9
14
11
12
13
8
16
2
8
4
3
1
4
8
5
7
3
1
4
8
5
7
3
1
5
1
2
22
13
9
8
34
33
32
31
27
12
10
25
24
23
7
4
8
6
2
7
1
26
1
15
27
28
18
17
25
11
10
24
20
28
18
30
26
56
~
49
63
64
48
57
55
59
53
58
54
61
51
60
52
8
3
13
7
1 7
3 5
10
12
1
15
2
18
1
4
2
15
7
~~
~
~
4
2
13
5
16
15
14
18
1
43
71
39
38
63
66
65
89
88
91
90
57
53
21
10
92
95
99
62
61
40
22
42
37
51
9
52
84
82
83
85
86
100
81
72
36
29
27
23
8
5
4
1
IC501
LC75396E
AUDIO
PROCESSOR
LCD
IC753
BA13058
S-MUTE
BL
C
S
C
S
R
L
MD-MD EDIT
R
L
R
L
R
L
AUX IN
R
L
MIC MUTE
JK601
MIC SW
OPEN
D812~D815
D802~D805
D801
BL
+B7
LAMP741
D902
+B1
D905
+B1B
+B1A
+B4
+B3
+B2
+B6
+B8
–B1
Q830
Q831
Q820
Q821
Q850
Q851
Q811
Q840
Q841
Q860
Q861
Q862
Q863
R–CH
R-OUT
L-OUT
+B
–B
IC201
POWER AMP.
STK40705
GE
~
+
–
–
+
+B1B
JOG701
VOLUME
+B8
+B8
+B8
KEY
SW701~707
SW721~731
SW771~776
SW781~789
+B1B
RESET
IC903
PST9140
RESET
DISPLAY
LCD751
+B1B
~~
IC901
SYSTEM CONTROLL MICON
IX2679AF
Q421
Q423
Q424
Q551
Q553
AUX
OUT
JK501B
ANALOG
IN/OUT
AUX
OUT
MD
REC
TO MD
IC552
–B1
+B4
SRS5250S
IC451
SRS
VOLTAGE
REGURATOR
+B4
Q461
CD-MUTE
Q541
Q542
FROM MD
FROM TUNER
FROM CD
JK151
MD IN/AUX1
AUX1/MD-MD
EDIT
AXDSW
NAME-IN
D-GND
L-IN
R-IN
A-GND
Q501
Q502
+B1B
+B1A
+B4
Q901
JK501A
AUX2
ANALOG
IN / OUT
JK502
PHONO
INPUT
R
L
L
L
R
R
L
R
ZD401
ZD402
–B1
+B4
+B8
+B1B
IC771
BU2092F
INPUT
SELECTOR
IC902
BU2092F
INPUT
SELECTOR
A/D SW
+B1B
SRS
+B1B
TO MD UNIT
CD MUTE
MIC MUTE
L-MUTE
RLY-OUT
~
~
~
~
~
~
~
LED705
LED706
LED772
~
LED775
8
10
9
Q702
LMP
701
SW1
SW9
~
9
14
5
IC511
INPUT SELECTOR
BU4052BC
9
VR602
INPUT
LEVEL
D
CD
MUTE
A
MIC MUTE
Q901
E
F
NAME IN
IC901
SWITCHING
1
3
IC601
MICROPHONE
MIC AMP.
NJM4558D
VR601
MIC VOLUME
B
L-MUTE
MUTE
MIC AMP.
NJM4565D
VOLTAGE
REGURATOR
IC802
NJM431L
VOLTAGE
REGURATOR
VOLTAGE
REGURATOR
7
6
19 21
~
47
32
29
27
25
23
VOLTAGE
REGURATOR
94
TO TUNER UNIT
DISPLAY
FROM
CD UNIT
CAM SWITCH
FROM
CD UNIT
46
47
48
NAME IN
E
C
B
A
D
F
X901
8MHz
SO601
KEYBOARD INPUT
1
2
3
FROM MD
IC904
MULTIPLEXER
74HC153P
IC751
BA13058
IC752
BA13058
IC751~IC753
LCD AMP.
UNA901
AUX
DIGITAL 1
INPUT
PC
CONTROLL
SO602
2
6
6
3
IC603
PC910
IC604
PC910
3
5
IC605
TC7WU04F
2
6
IC602
PC910
IC602~IC605
PC CONTROLL
Q271
Q272
M
M971
FAN MOTOR
FAN MOTOR
ON–OFF
SW
+B7
LAMP747
~
LAMP741
SWITCHING
JK901
HEADPHONES
L–CH
SO201
SPEAKER
TERMINALS
RL201
RELAY
C
F802
T5A
L 125V
F803
T5A
L 125V
F804
T1.6A
L 250V
F805
T1.6A
L 250V
AC POWER
SUPPLY CORD
AC230V
50Hz
T801
POWER
TRANSFORMER
MIC SW
IC440
INPUT SELECTOR
NJM4558D
1
8
MULTIPLEXER
74HCU04
IC905
JK902
AUX
DIGITAL 2 INPUT
67
G
VLOAD
+B5
Q880
Q881
G
VLOAD
IC901
Содержание MD-X7H
Страница 28: ...MD X7H MEMO 18 ...
Страница 29: ...MD X7H MEMO 19 ...