SPHINX Project Eight - Figure 17: Left Input Amp

SPHINX Project Eight Service Manual
28
Figure 17: Left Input Amp
4
3
2
1
5
6
7
8
12 11 10
9
17 18 19 20
14
15
16
13
+V
-V
OUT
NFB
U22
DISAMPMODULE
4
3
2
1
5
6
7
8
12 11 10
9
17 18 19 20
14
15
16
13
+V
-V
OUT
NFB
U23
DISAMPMODULE
AGND
+ C113
C63V/2200U
+ C110
C63V/2200U
+ C109
C63V/2200U
+ C106
C63V/2200U
AGND
AGND
AGND
AGND
R150
1R00
R151
1R00
R152
1R00
R153
1R00
L+24V
L-24V
L+24V
L-24V
+LV-IN
-LV-IN
R160
20K0 .1%
R158
10K0 .1%
R159
10K0 .1%
R166
50K0
R167
50K0
C122
220p
C123
220p
AGND
AGND
R170
1K00
R171
1K00
-L-IN
+L-IN
R161
20K0 .1%
+
RL59
REL16
+24VCINCH
AGND
C107
47N/PP
C108
47N/PP
C111
47N/PP
C112
47N/PP
37..40mA
37..40mA
37..40mA
37..40mA