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750
R9
+V
750
R15
24K
R11
6 5
NJM4580
7
R45 220 56n C15 R35 4.22K 360K R33 18n C11 C13 100K 1n5
7 S5-2 2
X1-26
Left Out
4n7
C9
IC1B 47 46.4K R37 R17 Q11 2sc2547
6 S5-3 3
10n C21 GND
X1-25
R41
68K R49 68K
95.3
R1
R31
75K
Left
U$1 3
4 1
220 R5
Q1 2SK371
G
D S
D S
Q3 2SK371
G
R47
D1
R39 523
IC2B
7
5 6
R19
470
PSG015 GND
C5 47p
C17 NJM4580 0.68u
-V
GND
GND
S5-4
1n5 C30
22u/25 C2
+
3
6 5
1
8
S1-3 1M5 R7 11 R25
6 4
S1-1 R51
2 7
4
Low ESR
1 8
S1-4
4.02
S3-1
3
Termal coupling
Q13 2SC2547
R29
R21
R23
S1-2
GND
43,2 470 R27 D3 R53 100 R3 15n +V C8 1n5 C31 22u/25 C3 -V
+
R13
21K
S3-3
GND
Same schematic for right channel
Part naming left# + 1 R1 Left becomes R2 Right
RX RY CX
X1-21 X1-22
15K
1M
1M
R43
Q5 2sc3329
Q7 2sc3329
GND
5
GND GND
15K C19 22u
Q9 2sc2547
Right Out
GND
1% tolerance 5% tolerance 1% tolerance
Con 32Pol Con 32Pol
X1-2 X1-4 X1-6 X1-8 X1-10 X1-12 X1-14
Low ESR GND
GNDA
100n
C33
GND
+V
X1-19
+
Q15
2SC2547 C23
+
X1-15 X1-16
Q16 2SA1085 220u/25 3k3 R58 33 R60 C24
+
X1-20
-V
3k3
R59 33
R57
C27 22u/25
220u/25 100 R55
22u/25 C28
S1 MM-MC
All ON MC All OFF MM MC 62dB / Load MM 36dB / 47K
S3 MC Load
1,2 ON 10 3,4 ON 30 All OFF 100
CY
Mylar (Polyester) +/-5%
X1-1 X1-3 X1-5 X1-7 X1-9 X1-11 X1-13
S5 Subsonic On/Off
All ON ON All OFF OFF 25Hz / -12dB/Oct
100
D5
D2
R56
X1-27 X1-29 X1-31
X1-28 X1-30 X1-32
+
X1-17
X1-18
X1-23
C25 220u/25
X1-24
C26 220u/25
Allways set SW for both channel to same postition
Accuphase AD-9
+
+
Reengineering from PCB
No official schematic! NO WARRANTY !!
GND
GND
GNDA
GND
KK160129-AD-9
0.0.1