SPHINX
Project Two Mk2 Service Manual
17
Project 2 input selection
1
3
2
CN4
CN16A
CN16B
CN13A
CN13B
CN1A
CN1B
CN17A
CN17B
CN12A
1
3
2
CN3
1
3
2
CN2
+
RL8
+
RL7
+
RL6
+
RL5
+
RL4
+
RL9
+
RL2
+
RL1
OGND
OGND
OGND
+R-OUT
-R-OUT
+L-OUT
-L-OUT
+D24V
U4
OPA604AP
R54
5K00
R53
5K00
R56
15K0
R57
15K0
AGND
AGND
R58
1R00
R52
1R00
C39
220N
C47
220N
+
C38
330U/50V
+
C46
330U/50V
AGND
1
3
2
CN5
U5
OPA604AP
R62
5K00
R61
5K00
R66
15K0
R67
15K0
AGND
AGND
R68
1R00
R60
1R00
C49
220N
C51
220N
+
C48
330U/50V
+
C50
330U/50V
AGND
+
RL3
CD
TUNER
LINE 1
LINE 2
LINE 3
TAPE IN
TAPE OUT
OUT 1
OUT 2
OUT 3
CD SYM
R-INPUT
L-INPUT
R144
600R
R145
600R
+D24V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
CN19
DGND
OPT1
OPTOUT
C102
33PF
R55
100K
C101
33PF
R63
100K
AGND
AGND
+D24V
+D24V
R2
4K75
M1
M2
1
4
CN20
+22V
-22V
1
2
J2
1
2
J5
AGND
R23
24R9
R5
24R9
SP3
R70
24R9
R71
24R9
1
4
CN18
AGND
AGND
O2
O8
O3
O4
O5
O6
O7
O1
O2
O1
O3
O4
O5
O6
O7
O8
AGND
AGND
+22V
-22V
+22V
-22V
to display
