SPHINX Project Twelve - Project 12 Amplifier Diagram

SPHINX Project Twelve Service Manual
16
Project 12 amplifier diagram
C2
220pF
R1
1K
R2
18K
GND
R5
22K
R6
120K
R7
820R
R8
820R
R9
22R
R10
22R
R11
1K
R12
475R
C3
1uF
C12
100nF
C11
220uF/100V
P3
100R
P1
200R
C1
1nF
GND
GND
GND
Sig1+
Sig1-
Agnd1
C9
100nF
+
C10
100uF/16V
Q4
2SC1775
Q2
2SC1775
Q3
2SC1775
C15
220uF/100V
C14
100nF
GND
D1
R46
604R
R3
604R
GND
R13
22K
GND
R4
18K
Q5
2SA970
Q6
2SA970
R16
56R
R15
39R
R17
39R
R14
18K
R20
300R
Q7
2SC2240
Q8
2SC2240
R21
300R
C4
100nF
R18
3K3
R19
220R
P2
200R
Q9
2SC2240
C6
100nF
R22
2R2
Q10
2SC2705
Q11
2SA1145
R23
2R2
R24
1K
R25
22R
R26
22R
Q12
2SC4382
Q13
2SA1668
R27
56R/2W
M15
2SJ200
M18
2SJ200
M20
2SJ200
M14
2SK1529
M17
2SK1529
M19
2SK1529
R30
0.22R
R31
0.22R
R38
0.22R
R43
0.22R
R40
0.22R
R45
0.22R
R29
68R
R38
68R
R42
68R
R28
100R
R37
100R
R41
100R
D7
1N4007
D6
1N4007
R32
47R/2W
R34
10R/5W
L1
EE-K-021
R33
10R/5W
C7
47nF
C8
330nF
GND
R44
22K
16
2
1
Sub.
D1
D2
Q1
2SK389
+
C141
+
C141
+
C140
+
C139
+
C138
+
C137
+
C136
+
C129
+
C130
+
C131
+
C132
+
C133
+
C134
+
C135
+
C113
+
C114
+
C115
+
C116
+
C117
+
C118
+
C119
+
C126
+
C125
+
C124
+
C123
+
C122
+
C121
+
C120
C112
C220nF/250V
GND
GND
GND
GND
C111
220nF/250V
Opto1
GND
Bias
Q16
2SC1775
R35
220R
R36
100R
C19
1N
D2
1N4148
a
b
1
RL1
REL1
D17
1N4007
+60V
14
1
A
B
17
Opto+
Opto-
C5
100 pF
5mA 70mA 100mA 100mA 100mA 100mA
70mA 100mA 100mA 100mA 100mA5mA
3.75mA
3.75mA
2.75mA
1.87V
60.5V
-60.5V
2.95W2.95W
5V
9.3V
3.93V
59V
59V
1.4mA 1.4mA
4.15W
4.15W
opto+
opto-
A
B
D3
ZY15V
D4
ZY15V
R48
470R / 2W
R49
470R / 2W
R50
470R / 2W
R51
470R / 2W
GND
Sig2+
Sig2-
Agnd2