Service manual

Output Schematic
5/21/2007Rev A
ARC Console
Arrakis Systems
+
5532
U1A
1
2
3
_
10K
47pF
10K
+
5532
U1A
1
2
3
_
10pF
+
5532
U1A
1
2
3
_
47pF
+
10uF
+
5532
U1A
1
2
3
_
10K
47pF
10K
+
5532
U1A
1
2
3
_
10pF
+
5532
U1A
1
2
3
_
+
5532
U1A
7
6
5
_
PL
PL
PR
PR
AL
AR
+
5532
U1A
1
2
3
_
10K
47pF
10K
+
5532
U1A
1
2
3
_
10pF
TO HYBRID
+4 dBu
Balanced
-10 dBu
unbal
+
5532
U1A
1
2
3
_
47pF
+
10uF
+
5532
U1A
1
2
3
_
47pF
+
10uF
+
5532
U1A
1
2
3
_
47pF
+
10uF
+
5532
U1A
1
2
3
_
47pF
+
10uF
+
10uF
+
5532
U1A
1
2
3
_
47pF
+
10uF
+
10uF
+
5532
U1A
1
2
3
_
47pF
+
+
10uF
+
5532
U1A
1
2
3
_
47pF
+
10uF
+
10uF
+
10uF
+
10uF
+
10uF
-10 dBu
unbal
PL
PR
AL
AR
Audio
Bus
OUTPUTS
Pgm
Aud
CD4053
U3A
13
12
14
11
X/Y
ctrl
X
Y
6
inh
+
CD4053
U3B
1
2
15
10
X/Y
ctrl
X
Y
Vee
-5VDC
+
+5 VDC
TB to
Caller
Mic
Talkback
to Caller
Phone
Channel
PL
PR
AL
AR
to
Monitor &
Mono Mix
8
Vss
7
+
5532
U1A
1
2
3
_
+
5532
U1A
7
6
5
_
+
5532
U1A
1
2
3
_
4.7K
47pF
+
10K
10K
10K
10K
10K
511
10K
10K
10K
511
10K
10K
10K
511
10K
511
10K
10K
10K
10K
10K
10K
10uF
10uF
10uF
10K
100K
2.2K
6.81K
47 ohm
47 ohm
47 ohm
47 ohm
10K
10K
2.2K
2.2K
47 ohm
47 ohm
47 ohm
47 ohm
47 ohm
47 ohm
(-2dB)
(-2dB)
Av= -13 to + 20dB
(-2dB)
(-2dB)
(-2dB)
Av= -13 to + 20dB
10uF
100K
100K
trim adjust
-15 to +18dBu unbal
-9 to + 24dBu bal
12.1K
8.25K
12.1K
8.25K
12.1K
8.25K
12.1K
8.25K
(Av= -8dB)
(Av= -8dB)
(Av= -8dB)
(Av= -8dB)
(Max out = +19dBu)
(Max out = +25dBu)
(-2dBu = 1.7VPtoP)
(-10dBu = 0.7VPtoP)
(+4dBu =3.5VPtoP)
+4 dBu
Balanced
trim adjust
-15 to +18dBu unbal
-9 to + 24dBu bal
(Max out = +25dBu)
(+4dBu =3.5VPtoP)
CD4053
U3C
3
4
9
X/Y
ctrl
X
Y
Vdd
5VDC
16
3.24K
5
10K
+
10uF
From
Ch 1 Mic
Preamp
10K
10K
10K
HP1
HA1
6.81K
1N914
1N914
DB15
Pin 12
Talkback
audio out
1.27