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CH.B
+15V
R303
100
R29
26.7
TP4
R35
2.00K
A
3
2
187
6
45
U2
5534A
C25
0.1UF
4
3
2
K25B
+15V
3
2
8
4
1
U1A
LT1124
C18
0.1UF
R24
47.5
+BIN
2V FS
C22
2.2UF
4
3
2
K10B
DS1
TP50
IN1A
4
3
2
K24B
4
3
2
K4B
CHANNEL B INPUT
STAR input gnd
COM
HOT
C106 GOES ON
CONNECTOR BD
CH
A
A
C106
.015UF
1 3
2
FL2
1 3
2
FL1
CH
J1
CONNECTS
TO J11
1
1
2
3
4
J1
A2
XLR
BOARD
J29
CONNECTS
TO J14
A5
AUDIO
7
1
2
3
4
J29
COLD
CALB+
A
A
A
AA
H1
6
R320
1.00K
10 1
K30A
7
8
9
K30C
R46
50.0K
R28
25.0K
R41
12.0K
R42
500
4
3
2
K30B
TP49
TP48
8V FS
125V FS
32V FS
A
1
2
3
4
5
6
7
8
J1
1
2
3
4
5
6
7
8
J100
A
STAR
input
gnd
C21
190PF
C27
470PF
125 VRMS FS
= 177V pk
32V RMS =
= 11.3V pk
8V RMS
4
3
2
K11B
4
3
2
K12B
4
3
2
K13B
45.2V pk
CR14
CR10
A0
A1
-15V
1
8
9
16
2
7
10
15
3
6
11
14
13
12
4
5
U8
DG412
C298
33PF
CR15
CR9
6 dB
A
A
A
C30
0.1UF
R34
15.00K
R63
1.00K
R61
2.00K
R62
1.00K
7
8
9
K25C
R64
2.162K
R65
124
C29
33PF
C108
33PF
C321
10PF
-15V
A
R30
150
R66
1.00K
R33
15.00K
R75
124
R67
2.162K
A3
3
C24
33PF
C26
470PF
C322
10PF
BRANGE
G5
6
R336
1.00K
CHANNEL B
INPUT AMPLIFIER
12 dB
12 dB
+5VD
10 1
K25A
R71
1.00K
R68
2.00K
CHB_18DBGAIN
A2
A1
A2
A
+15V
-15V
+5V R
R
R
-15V
VR4
10V
1
8
9
16
2
7
10
15
3
6
11
14
13
12
4
5
U5
DG412
R39
1.00K
CR16
+15V
A
VR3
10V
R40
1.00K
CR13
B COMP
R304
249K
C333
7-45PF
C334
51PF
A
+5VD
R49
6.0K
R50
250
R51
3.01K
R52
115
R53
1.50K
MAX
30V RMS
4
3
2
K28B
R302
200
R292
18.2
R278
300
4
3
2
K1B
BASE
6
COLL
5
EMIT
4
D1
1
D2
2
NC
3
U112
H11AAX
GENSOURCEB
R291
20.5K
GEN.
BOARD
MAX
30V RMS
+5VD
10 1
K28A
R277
300
ISOTERMB
7
8
9
K1C
7
8
9
K28C
1 3
2
FL3
R54
61.9
R281
1.50K
ATTENUATOR BD.
A1A2 INPUT
7
8
9
K24C
R282
61.9
7
8
9
K4C
C23
2.2UF
7
8
9
K10C
TP46
TP
DS2
R25
47.5
-BIN
CR12
A0
+15V
+5V
-15V
R
6
5
7
U1B
LT1124
C299
33PF
CR11
6 dB
A
R32
2.00K
R70
2.00K
TP2
TP
C109
33PF
AA
TP5
TP
TP3
TP
7
8
9
K13C
7
8
9
K12C
7
8
9
K11C
A
1
2
3
4
5
6
7
8
J1
A
1
2
3
4
5
6
7
8
J101
STAR
input
gnd
C20
190PF
C32
470PF
1NORM/CAL
IN1B
10 1
K4A
+5VD
+5VD
10 1
K24A
R46
50.0K
R28
25.0K
R41
12.0K
R42
500
SOURCE:
INPUT/
TP45
TP47
CALB-
BCALB
A
+5VD
GENSOURCEB
H1
6
G2
6
CHB_TERM
(CLEARTRIP)
C2
6
600 TERM IN/OUT
A
R294
5.11K
10 1
K1A
R295
2.74K
R293
10.0K
(TERMB)
C331
0.1UF
D
2
Q
5
CK
3
Q
6
P
R
4
C
L
1
U113A
74ALS74
G4
6
CR39
Q2
CR31
+5VD
R49
6.0K
R50
250
R51
3.01K
R52
115
R53
1.50K
GENERATOR
UNITY GAIN
24 dB ATTEN
36 dB ATTEN
12 dB ATTEN
10 1
K10A
+5VD
+5VD
+5VD
+5VD
10 1
K11A
10 1
K12A
10 1
K13A
A[0..3]
A3
CHB_GAIN[0..3]
E3
6
R54
61.9
R281
1.50K
ATTENUATOR BD.
A1A3 INPUT
UNITY_GAIN
12DBATTEN
24DBATTEN
36DBATTEN
GENSOURCEB
ISOTERMB
+5VD
C297
0.1UF
CH118DBGAIN
R282
61.9
BGENSOURCE
CHB_150TERM
ATTEN[0..3]
ATTEN0
ATTEN1
ATTEN2
ATTEN3
A
A
A3
IN2
2
IN3
3
IN4
4
IN5
5
IN6
6
IN7
7
D2
15
D3
14
D4
13
D5
12
D7
10
IN1
1
CLAMP
9
GND
8
D1
16
D6
11
U102
MC1413
+5VD
CHB_ATTEN[0..3]
C3
6
F3
6
E3
E46
AM 700 CHB INPUT & A1A2 & A1A3 ATTENUATOR BOARDS
PART OF A1A1 ANALOG ACQUISITION BOARD
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