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CR Mute
Logic
Av = (-)8dB to +10dB
Bus
47pF
50K
22K
6.8K
L
2
_
1
5532
U1A
3
+
Air Mon
(-12 to +6dBu)
Input
47pF
50K
22K
6.8K
R
6
_
7
5532
U1A
5
+
10uF
PL
+
from
PR
+
Output
AL
+
Section
AR
+
47pF
Cue
10uF
10K
Audio
2
_
+
1
Bus
5532
U1A
3
+
DB15
Pin 15
10uF
4.7K
Talkback
+
in to Cue
DB15
10K
Pin 2
Autocue
6.81K
Logic In
(Av = 4.8dB)
+
47uF
10pF
32.4K
4.7K
2
_
1
5532
50K
U1A
3
+
NOTE #1: The meter circuits on the 10 channel
PC board are used for the ARC-10 only. The
ARC-15 has VU meter driver boards located on
the VU Meters themselves in the VU housing.
ARC Console
(+)5VDC
16
(-2dBu = 1.7VPtoP)
Vdd
CD4052
(-2dBu)
3
U1
L IO
10K
2
+
L1 IO
15
10uF
R1 IO
5
L2 IO
14
R2 IO
1
L3 IO
13
12
R IO
R3 IO
10K
+
4
L4 IO
11
9
10uF
R4 IO
B
10
6
A
inh
(-2dBu)
Vss
Vee
10K
8
7
(-)5VDC
10K
10K
10K
Ext
12
74AC08
13
U3D
10K
Pgm
+
10uF
4
Aud
74AC08
2.2K
5
U3B
+
10K
1
Unused
74AC08
2
9
U3A
74AC08
8
10
U3C
+
47uF
10pF
VU
32.4K
left
4.7K
6
_
2.2K
5532
50K
U1A
6
+
(0VU on meter = 2.9VPtoP = 2.6dBu)
(-2dBu)
10uF
47pF
(-14dBu)
+
10uF
10K
2
_
+
1
5532
U1A
3
+
10uF
47pF
+
10uF
10K
2
_
+
1
5532
U1A
3
+
msb
lsb
10= air
01= pgm
00= aud
10uF
+
+
10
14
SD
12
9
D
Q
74AHC74
U2B
1 1
8
CP
Q
(-2dBu)
+
RD
470
14
13
7
1 1
7
+
4
SD
2
5
D
Q
74AHC74
U2A
3
6
CP
Q
RD
+
470
14
1
6
7
+
+
Autocue
10
14
SD
bus
12
9
NA
D
Q
74AHC74
U1B
1 1
8
CP
Q
RD
+
470
14
13
7
3
200K
7
+
+
10K
100K
200K
VU
+
right
2.2K
10K
7
100K
Monitor Schematic
(0 = X, 1 = Y input)
(Av= +7dB)
5VDC
16
10K
11
Vdd
12
ctrl
+
X
14
2
CD4053
X/Y
U4C
10K
13
6
Y
inh
3
10K
9
5
ctrl
X
4
6
CD4053
X/Y
U4B
10K
3
6
Y
inh
5
Vee
7
(-)5VDC
+
6
2
_
1
100K
10
2
ctrl
LM386
X
U1
3
15
CD4053
X/Y
+
.047uF
U4A
4
10K
1
6
Y
inh
10
Vss
8
100K
22.1k
Mute = +12VDC
2N3904
DB15 Pin 10 Studio Monitor Left Audio output
DB15 Pin 11 Studio Monitor Right Audio output
+12VDC
(0 = X, 1 = Y input)
+
5VDC
6
16
47uF
2
_
1
11
12
Vdd
ctrl
+
X
LM386
CD4053
14
U1
X/Y
3
U9C
+
13
4
6
Y
inh
Vss
10
8
(Av = 26dB)
+
6
47uF
2
_
1
9
+
5
ctrl
X
LM386
CD4053
U1
4
X/Y
3
U9B
+
4
3
6
Y
inh
Vee
10
7
(-)5VDC
Arrakis Systems
1.28
10pF
OUTPUTS
22K
_
1
L
5532
U1A
+
CR
Monitor
Output
10pF
(-10dBu)
22K
_
7
R
5532
U1A
+
(-10dBu = 0.7VPtoP)
(Av = 26dB)
330uF
8
Cue
+
5
2 ohm
Speaker
1/2W
+
100 ohm
1/2W
DB15
Pin 1
CR Mute
Logic for
On Air
Light
DB15
2 ohm
Pin 14
+12VDC
330uF
8
Headphone
+
5
2 ohm
jack
L
1/2W
.047uF
+
R
330uF
8
+
5
2 ohm
(+5V PtoP = +7dBu)
1/2W
.047uF
+
Rev A
5/21/2007
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