Operating instructions

ELECTRONIC DESCRIPTION
1200 SERIES INPUT BOARD (PC-1200-PB3) - SCHEMATIC - 4-5)
Arrakis Systems, inc. --- 6604 Powell st., Loveland, CO 80538 --- 970-461-0730 --- www.arrakis-systems.com
4.10
MICROPHONE LEVEL INPUT CHANNELS
INVERTER
74C04
SYMBOL TABLE
= HEADER
= I/O CONNECTOR CNX-X
PX-X
= RESISTOR
= CAPACITOR
RELAY
TRIMPOT
= (+)VDC
= (-)VDC
OP AMP
NE5532
SSM2017
VCA
DIODE
1N914
= GROUND
BJT
2N3904
6
3
SSM2018TP
13
11
4
5
8
1
7
14
16
10
2
12
HAMLIN
HE3621A1210
CLARE
MRB 2A12
JFET
J111
LAMP
ML386
IC
BP BP
BP2
1200 SERIES CONSOLE
PREAMP BOARD PG.1 (MIC)
ARRAKIS SYSTEMS INC.
SCHEMATIC
REV.C
PC-1200-PB3 7-95
5300-170 12/4/98
CHANNEL
FADER
1
2
3
5A
CN2-6
CN2-9
Q1
7
6
5
4B
REMOTE
START
RELAY
(MOMENTARY CLOSURE
50mA MAX CURRENT)
CHANNEL
ON-OFF
SWITCH
ON-OFF
LAMP
P1-14
P1-18
CN2-2
CN2-7
MUTE
ENABLE
JUMPER
P1-23
'REMOTE CH ON' &
TALLY LOGIC
(-V = ON, +V = OFF)
AUTOCUE
LOGIC
BUS
P1-21
Q4
Q3
MIC
LEVEL
INPUT
30
31
6
12
42
110
32 112
111
46
38
122
123
30
P6
3
5
2
20
10B 10E
3
2
3 4 11 10
P7
113
9
47
10
44
95 96
RYX
P3-4
4
1
P7
33
-V = ON
+V = OFF
GND = ON
-V = OFF
8
97
43
7
25
31
VOL. CONTROL
-0.22V = FULL ON
+4.5V = CH OFF
+
6
3
SSM
2018T
13
11
4
5
8
1
7
14
16
10
2
12
52 85
5
86
130
6
IC2
P1-4
P1-2
P1-8
P1-6
4
2
P5
5
3
P5
1
2
3
47
8
3A
41
72
4
3
7
6
5
105
3B
40
73
CN2-4
5
TALKBACK
LOGIC
3
IC1
2017
1
8
2
6
7
4
5
11
10
1 2
20
TR1
5
1
CN2-1
'ON TALLY' LOGIC
(-V = ON, FLOAT = OFF)
44
45
49
48 37
J1
MIC PREAMP
OUTPUT
80
+
RY1
41
40
43
42
RY2
+
81
+
+
P4-4
P4-3
+
P3-3
VIO
WHT
GRY
BLK
GRY/RED
YEL
BLU
WHT
GRY
BLK
VIO
MIX (-)
ASSIGN
JUMPER
P11-2
P11-1
7