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7-9. SCHEMATIC DIAGRAM – MAIN Board (2/4) –
A6
A7
D8
0
A4
A1
(Page 20)
A2
A5
A9
A3
A8
+9V
MUTE
D-GND
PROTECT
(Page 23)
CON21
CON14
B1
B2
B3
B4
B5
(Page 22)
B6
HCD-DF1
• See page 28 for IC Block Diagrams.
(2/4)
R103
2.2k
R43
10k
R93
2.2k
C126
0.01
Q13
2SC5938
(AEP,RU,KR)
MUTING
R91
R92
2.2k
2.2k
C95
R131
C58
22
2.2k
D31
22
25V
R90
RLS4148
25V
10k
Q3
R41
1.2k
2SC3052
MUTING CONTROL
SWITCH
R3
2.2k
Q9
2SC3052
Q5,9
POWER CONTROL
C63
C120
(AEP,RU,KR)
100
0.1
16V
Q11
2SC5938
C59
STADBY
0.47
STANDBY SWITCH
50V
10
IN1
R95
C61
560
220p
9
PRE_GND
R94
C60
C62
560
0.47
220p
50V
8
IN2
P.P
Q4
Q12
2SC3052
2SC5938
MUTING
MUTING
R114
SWITCH
2.2k
R126
R96
0
100k
D9
R48
Q7
C96
RLS4148
18k
C11
2SA1282
100 25V
0.1
B+ SWITCH
D38
RLS4148
R45
R116
47k
22k
R44
R50
4.7k
47
D34
R7
RLS4148
Q5
10
RLS4148
2SC3052
C79
R42
R112
R6
100
1k
10k
10
16V
R49
Q8
47
2SC5395
+4V REGULATOR
C13
C12
220
0.1
16V
D36
RLS4148
C57
C56
4.7
C17
C16
R55
R54
470
0.1
220
4.7
16V
21
21
POWER AMP
7
4
C66
VCC
1000
16V
1
OUT1
IC101
LA4600
C69
0.01
2
POWER_GND
C67
1000
16V
3
OUT2
R47
R97
10k
10k
FILTER
D18
RLS4148
6
5
R113
D19
560
RLS4148
C72
C71
C70
R53
4.7
100
0.01
10k
50V
16V
C68
0.01
C75
0.022
RJ4
Q6
C101
0
ISA1235
0.1
D20
POWER OFF
C65
1N5402
3300
MUTING
25V
C97
R115
ZD4
C77
470
4.7k
MTZJ-T-77-10B
0.022
16V
RJ3
(AEP,RU,KR)
0
D22
C133
1N5402
RJ2
R130
R98
100p
0
4.7k
4.7k
Q19
D37
ISA1235
POWER
D30
R128
C104
C81
RLS4148
1k
0.1
0.022
OFF
MUTING
C92
C80
D4
D24
470
47
2A02M
2A02M
16V
25V
R51
4.7k
ZD3
MTZJ-T-77-7.5B
C85
C14
D26
3300
10
ZD1
2A02M
25V
50V
MTZJ-T-77-5.1B
C10
22
25V
0.1
C100
0.1
50V
C18
220 16V
+9V REGULATOR
IC1
TA7809S
HCD-DF1
CON2
5P
PH-R
SP-R
R106
10
GND
SP-L
PH-L
R107
(Page 18)
L2
10
C74
C73
0.01
0.01
L3
C15
100
L
16V
C109
SPEAKER
0.1
R
C112
C110
0.1
0.1
C111
0.1
R200
10
R202
10
W4
(CHASSIS)
C78
C76
0.022
0.022
CON4
D23
D21
4P
1N5402
1N5402
14V
14V
9V
9V
(Page 27)
C82
C84
0.022
0.022
D25
D27
2A02M
2A02M
C83
0.022
I
G
O
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