Accuphase D9 Schematic
GNDA
X1-19
X1-20
1n5
C30
Left
22u/25
GND
C33
100n
C27
+
C2
Low ESR
18
S3-1
36
S3-3
GND
+
U$1
PSG015
3k3
+V
R9
750
Q1
D
2SK371 2SK371
R1
GND
36
S1-3
45
S1-4
2SC2547
R55
220
R5
75K
GND
+V
C23
+
220u/2522u/25
X1-17
SG
C5
47p
Q5
2sc3329
1M
R21
Termal coupling
1n5
22u/25
C31
C3
GND
X1-15
X1-16
22u/25
X1-18
X1-23
X1-24
3
4
1
GND
-V
1M5
R7
11
R25
43,2
R53
100
R3
15n
C8
Q15
33
R57
R59
100
D5
C25
+
220u/25
C9
+
Low ESR
4n7
R15
24K
D1
470
R19
2SC2547
470
R27
-V
+
3k3
R58
Q11Q9
2sc25472sc2547
Q13
D3
Q16
33
+
47
R17
R60
100
D2
C26
220u/25
750
21K
2SA1085
R56
R11
D
SG
Q7
2sc3329
R23
R13
+V
+
C24C28
1M
220u/25
NJM4580
6
7
5
IC1B
56n
R37
Q3
R31
95.3
GND
18
S1-1
27
S1-2
4.02
GND
C15
46.4K
18n
R33
R35
360K
C11
4.22K
R29
36
C13
1n5
S5-3
R47
100K
C17
0.68u
IC2B
7
NJM4580
R39
523
5
6
S5-4
45
R51
15K
GND
R41
R43
GND
Same schematic for right channel
68K
68K
R49
S5-2
GND
R45
220
10n
C21
GND
15K
27
C19
22u
Part naming left# + 1
R1 Left becomes R2 Right
1% tolerance
RX
5% tolerance
RY
1% tolerance
CXCY
Mylar (Polyester) +/-5%
-V
S1 MM-MC S3 MC Load S5 Subsonic On/Off
All ON MC
All OFF MM
MC 62dB / Load
MM 36dB / 47K
Allways set SW for both channel to same postition
1,2 ON
3,4 ON
All OFF
10
30
100
ON
All ON
OFF
All OFF
25Hz / -12dB/Oct
Accuphase AD-9
X1-26
Left Out
X1-25
X1-21
Right Out
X1-22
Con 32Pol Con 32Pol
X1-1 X1-2
X1-3 X1-4
X1-5 X1-6
X1-7 X1-8
X1-9 X1-10
X1-11 X1-12
X1-13 X1-14
X1-27 X1-28
X1-29 X1-30
X1-31 X1-32
Reengineering from PCB
No official schematic!
NO WARRANTY !!
GND
GND
GNDA
GND
KK160129-AD-9
0.0.1
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