BDI ACS-300 Product manual
Broadcast Devices, Inc.
Technical Reference Manual
ACS-300 Audio Control System
Broadcast Devices, Inc.
Tel. (914) 737-5032
Fax. (914) 736-6916
World Wide Web: www.Broadcast-Devices.com
Rev A. 12/04
2
Table of Contents
I. Introduction 3
II. Unpacking 3
III. Installation and Connections 3
IV. Features and Operation 3
V. Remote Control Status Pin out 4
VI. Specifications 5
VII. Warranty 6
VIII. Schematic Diagrams 7-10
3
I. Introduction
The ACS-300 Audio Control System comprises of six balanced inputs and six balanced outputs for
which the input level can be dimmed by 10, 20, or 30 dB upon remote control command. In addition, the
unit can be commanded to mute all channels or any one of six channels upon separate remote control
commands. The ACS-300 is intended for radio, television and recording control rooms for which
control/muting of up to six channels that are normally fed to a monitor amplifier system. The ACS-300 is
particularly suited for use with Dolby Digital, Dolby Surround and/or DTS multi channel sound systems.
The front panel of the ACS-300 has six channel active LEDs in addition to Dim and Mute status. All
control of the unit is accomplished by remote control through simple switch closure or through a
companion accessory remote control box available from BDI.
II. Unpacking and Inspection
Carefully inspect the unit after unpacking and make certain that no damage has occurred during shipping.
If damage is noted, contact the shipper immediately and file a claim for damages. Each unit is carefully
packed and carries full insurance against damage. Inspect the packing list and make sure that the contents
of the package match those described on the packing list.
III. Installation and Connections
Before installing the unit it is a good idea to decide what input sensitivity you would like the unit to have
and to decide how much dimming the unit should provide. The unit can be configured in a variety of ways.
Each channel input can be configured to accept a balanced +4, 0, or -10 dBm nominal signals. Simply
remove the cover and place the jumpers in the desired positions. Factory default is +4 dBm nominal input
on each channel. Next, locate the dimmer sensitivity jumpers and select the desired amount of dimming. -
30, -20 and -10 dB of dimming is available to any channel. If no dimming is desired on a particular group
of channels, simply remove the dimming jumpers from the desired channels. Factory default is – 20 dB on
all channels.
IV. Features and Operation
The ACS-300 Audio Control System is designed to control up to six audio channels to
Remote control and remote status of the unit is accessed through the rear panel 15 pin D connector.
Simple ground closure to the appropriate pin will command the unit to dim or mute as long as the closure is
maintained. The ACS-300 supplies +5 V.D.C. for powering open collector actuators.
4
V. Remote Control/Status DB15 pin connections
1Remote Mute Channel 1
2Remote Mute Channel 2
3Remote Mute Channel 3
4Remote Mute Channel 4
5Remote Mute Channel 5
6Remote Mute Channel 6
7Remote Mute All Channels
8Remote Dim All Channels
9NC
10 NC
11 NC
12 NC
13 Ground
14 Remote Mute Status
15 Remote Dim Status
5
VI. Specifications
Inputs: Six - -10, 0, or +4 dBm balanced bridging nominal
any input
Outputs: Six – +4 dBm balanced 600 ohms
Frequency Response: +/- 0.2 dB from 20 Hertz to 20 KHz
Total Harmonic Distortion: less than .05% any channel at any frequency
Maximum Output level: +18 dBm
Mute Isolation: 70 dB or greater all channels from 20 Hertz to
20 KHz
Remote Control: Maintained ground closure selects mute or dim
function
Remote Status: Active low ground, +5 VDC inactive TTL
compatible
Front Panel Indicators: Mute, Dim and six channel active indicators
Power Requirements: 120/240 V.A.C. @ 0.25A; 50 – 60 Hz.
Operating Environment: 0 – 60 Degrees Celsius Non Condensing Atmosphere
Physical: 19”W X 8”D X 1.75”H Mounted via Standard E.I.A.
19” rack one rack unit occupied. Weight: 9 LBS.
6
VII. Warranty
Broadcast Devices, Inc. products are warranted against failure due to faulty materials or workmanship for
a period of one year from the date of shipment to the ultimate user. The warranty covers repair or
replacement of defective parts at the factory, provided the unit has been returned prepaid by the user. All
shipments to the factory shall have affixed to the outside of the container an R. A. number obtained from
the factory. The above warranty is void if the unit has been modified by the user outside of any
recommendations from the factory or if the unit has been abused or operated outside of its electrical or
environmental specifications. If customer conducted field tests suggest that the unit may be faulty, whether
or not the unit is in warranty, a full report of the difficulty should be sent to Broadcast Devices, Inc. factory
at Cortlandt Manor, New York. The office may suggest further tests or authorize return for factory
evaluation.
Units sent to the factory should be well packed in the original packing if possible and shipped to
Broadcast Devices, Inc. 5 Crestview Avenue, Cortlandt Manor, NY 10567. Remember to affix the R.A.
number to the outside of the carton. Any packages received without such R.A. number will be refused.
Note: freight collect shipments will also be refused. When the unit has been received, inspected and tested,
the customer will receive a report of the findings along with a quotation for recommended repairs, which
are found falling outside of the standard warranty. Units returned for in-warranty repairs which are found
not to be defective will be subject to an evaluation and handling charge. In-warranty units will be repaired
at no charge and returned via prepaid freight.
Out-of-warranty units needing repair require a purchase order and will be invoiced for parts, labor, and
shipping charges.
When ordering replacement part, always specify A) Part number or Description, and Quantity; B) Date of
Purchase, Where Purchased; C) Any Special Shipping Instructions. Always specify a street address, as
shipping companies cannot deliver to a postal box.
Broadcast Devices, Inc. is not responsible for any other manufacturer’s warranty on original equipment.
Nor are we responsible for any failure, damage, or loss of property that may occur due to the installation or
operation of our equipment outside of recommended specifications.
Broadcast Devices, Inc. may from time to time make changes to the materials used in the manufacture of
its equipment and reserves the right to do so without further notice.
7
VIII. Schematic Diagrams
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Broadcast Devices, Inc.
B
ADS-200
B
1 4Thursday, December 09, 2004
{}
Title
SizeDocument Number Rev
Date: Sheet of
DIM
DIM
MUTE1
MUTE2
+12V
-12V
AGND
DGND
EARTH
+12V
-12V
-12V
+12V
-12V
+12V
+12V
-12V
-12V
+12V
-12V+12V
+12V
-12V
R26 150
R32
27R
+
-
U1A
NE5532AD8
3
21
8 4
JP1
JMPR-3X2
C19
10uF 25V
+
-
U2B
NE5532AD8
5
67
+
-
U2A
NE5532AD8
3
21
8 4
R2
100 1% MF
C20
10uF 25V
R44
10.0K 1% MF
JP3
JMPR-3X2
+
-
U5B
NE5532AD8
5
67
R17
10.0K 1% MF
C3
10uF 25V
C10
10uF 25V
R31
10.0K 1% MF
R41
100 1% MF
R16 10.0K 1% MF
R23 2.2K
JP2
JMPR-3X2
C15
10uF 25V
+
-
U5A
NE5532AD8
3
21
8 4
L4
FB
+
-
U4B
NE5532AD8
5
67
R11
10.0K 1% MF
R35
100.0K 1% MF
C25
10uF 25V
C2
4.7uF 25V
R28
10.0K 1% MF
R10
10.0K 1% MF
R36
1.3K 1% MF
C21
200pF MICA
R8
10.0K 1% MF
C13
10uF 25V
R13
10.0K 1% MF
C18
.1
C9
.1
R14
27R
R1
100.0K 1% MF
R40
10.0K 1% MF
R46
10.0K 1% MF
R30
10.0K 1% MF
C4
.001
C17
.1
C28
.1
C14
.1
L2
FB
R38
9.1K 1% MF
R15
10.0K 1% MF
J4
1 2
3
4
R3
10.0K 1% MF
J3
1 2
3
4
C8
200pF MICA
DS1
LED
12
R5
1.3K 1% MF
C1
.1
C26
.001
R42
10.0K 1% MF
R4
2.2K 1% MF
R9
10.0K 1% MF
R37
2.2K 1% MF
R25
27R
U3
SSM2404P
6
5
4
1
2
7
17
18
19
20
15
16
14
9
11 10
13 8
12
3
SW2 CTL
SW1 CTL
DGND
SW1 A
AGND
NC
V+
SW4 B
AGND
SW4 A
SW3CTL
SW4 CTL
V-
AGND
SW3 A SW2 A
SW3B SW2 B
AGND
SW1 B
J1
1 2
3
4
J2
1 2
3
4
R45
10.0K 1% MF
C27
4.7uF 25V
C23
10uF 25V
C5
.1
DS2
LED
12
R39
10.0K 1% MF
C24
.1
R24
10.0K 1% MF
C22
.1
R27 470
R20 150
R6
2.2K 1% MF
L1
FB
C29
.001
+
-
U4A
NE5532AD8
3
21
8 4
R29 2.2K
JP4
JMPR-3X2
R7
9.1K 1% MF
R12
10.0K 1% MF
R18
10.0K 1% MF
R19
27R
C30
10uF 25V
L3
FB
+
-
U1B
NE5532AD8
5
67
R22 470
C11
200pF MICA
R33 10.0K
R43
2.2K 1% MF
CR1
1N4148
CR2
1N4148
C12
.1
C6
.001
C16
200pF MICA
C7
10uF 25V
R21 10.0K 1% MF
R34
10.0K 1% MF
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Broadcast Devices, Inc.
B
ADS-200
B
2 4Thursday, December 09, 2004
{}
Title
SizeDocument Number Rev
Date: Sheet of
DIM
DIM
MUTE3
MUTE4
+12V
-12V
AGND
DGND
EARTH
+12V
-12V
-12V
+12V
-12V
+12V
+12V
-12V
-12V
+12V
-12V+12V
+12V
-12V U8
SSM2404P
6
5
4
1
2
7
17
18
19
20
15
16
14
9
11 10
13 8
12
3
SW2 CTL
SW1 CTL
DGND
SW1 A
AGND
NC
V+
SW4 B
AGND
SW4 A
SW3CTL
SW4 CTL
V-
AGND
SW3 A SW2 A
SW3B SW2 B
AGND
SW1 B
JP7
JMPR-3X2
C59
.001
C46
200pF MICA
C45
10uF 25V
R86
10.0K 1% MF
R50
2.2K 1% MF
R79 10.0K
C33
10uF 25V
C43
10uF 25V
C38
200pF MICA
C35
.1
R65
27R
+
-
U7A
NE5532AD8
3
21
8 4
C32
4.7uF 25V
L6
FB
J5
1 2
3
4
+
-
U9A
NE5532AD8
3
21
8 4
C37
10uF 25V
+
-
U10A
NE5532AD8
3
21
8 4
R92
10.0K 1% MF
R55
10.0K 1% MF
R73 470
R89
2.2K 1% MF
C40
10uF 25V
R59
10.0K 1% MF
DS4
LED
12
DS3
LED
12
C60
10uF 25V
R48
100 1% MF
R84
9.1K 1% MF
R74
10.0K 1% MF
J6
1 2
3
4
R75 2.2K L8
FB
R72 150
R76
10.0K 1% MF
CR3
1N4148
R66 150
R77
10.0K 1% MF
C48
.1
R85
10.0K 1% MF
R51
1.3K 1% MF
L7
FB
C50
10uF 25V
R61
10.0K 1% MF
JP6
JMPR-3X2
R56
10.0K 1% MF
R91
10.0K 1% MF
R53
9.1K 1% MF
+
-
U9B
NE5532AD8
5
67
R78
27R
C34
.001
CR4
1N4148
R87
100 1% MF
C39
.1
C54
.1
C31
.1
+
-
U6B
NE5532AD8
5
67
R90
10.0K 1% MF
J8
1 2
3
4
R82
1.3K 1% MF
C57
4.7uF 25V
R58
10.0K 1% MF
R57
10.0K 1% MF
+
-
U6A
NE5532AD8
3
21
8 4
C47
.1
R83
2.2K 1% MF
R52
2.2K 1% MF
C42
.1
R62 10.0K 1% MF
R60
27R
C56
.001
R70
10.0K 1% MF
R68 470
+
-
U10B
NE5532AD8
5
67
C51
200pF MICA
R49
10.0K 1% MF
JP5
JMPR-3X2
C49
10uF 25V
R81
100.0K 1% MF
C58
.1
R71
27R
L5
FB
C36
.001
R69 2.2K
R47
100.0K 1% MF
R88
10.0K 1% MF
C52
.1
C41
200pF MICA
R63
10.0K 1% MF
R54
10.0K 1% MF
J7
1 2
3
4
C53
10uF 25V
R64
10.0K 1% MF
+
-
U7B
NE5532AD8
5
67
JP8
JMPR-3X2 C55
10uF 25V
C44
.1
R80
10.0K 1% MF
R67
10.0K 1% MF
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Broadcast Devices, Inc.
MUTE
DIM
B
ADS-200
B
4 4Thursday, December 09, 2004
{}
Title
SizeDocument Number Rev
Date: Sheet of
REM-MUTE1
REM-MUTE2
REM-MUTE3
REM-MUTE4
REM-MUTE5
REM-MUTE6
REM-DIM
REM-MUTE1
REM-MUTE2
REM-MUTE3
REM-MUTE4
REM-MUTE5
REM-MUTE6
REM-MUTEALL
REM-DIM
REM-MUTALL
REM-DIMSTATUS
REM-MUTESTATUS
REM-MUTESTATUS
RDIM
REM-DIMSTATUS
MUTE1
MUTE2
MUTE4
MUTE3
MUTE6
MUTE5
DGND
+12V
AGND
EARTH
-12V
DIM
-12V
+12V
+12V
-DC
+DC
-12V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
U21A
74LS08
1
23
147
CR8
1N4007
U20
LM7805
1 3
2
Vi Vo
GND
C92
4700uF 50V
DS8
LED
1 2
R148
470
C116
.1 0805
J14
DB15
1
9
2
10
3
4
5
11
12
6
7
8
13
14
15
R146
1.3K 1/2W
C94
.1 50V
L20
FB
R151
470
CR12
1N4007C105
.01
L22
FB
CR11
1N4007
C101
4700uF 50V
L19
FB
U21B
74LS08
4
56
R150
470
C102
.1 50V
C96
.1 50V
R144
470
C100
.01
R139
470
C93
.1 50V
J13
HDR3
1
2
3
CR15
1N4007
U21D
74LS08
12
13 11
C95
3300uF 25V
C109
.01
R140
150 1/2W
CR10
1N4007
C106
.1 50V
CR14
1N4007
C97
4.7uF 50V
C108
.1 50V
R145
150 1/2W CR13
1N4007
L17
FB
C114
.01
L21
IND
C111
.1 50V
C99
.1 50V
CR7
1N4007U17B
74LS08
4
56
R142
1.3K 1/2W
C104
3300uF 25V
U19
LM317
3 2
1
Vi Vo
ADJ
L13
FB
C98
.01
DS7
LED
1 2
C117
.1 50V
U16
LM337
2 3
1
Vi Vo
ADJ
U21C
74LS08
10
98
L16
FB
CR9
1N4007
C112
.1 50V
L15
FB
U17C
74LS08
10
98
R143
470
C107
4.7uF 50V
R147
470
R149
470
C91
.01
R141
470
U17A
74LS08
1
23
147
U17D
74LS08
12
13 11
U18C
74LS08
10
98
L18
FB
C113
3300uF 25V
U18A
74LS00
1
23
147
C103
.1 50V
C115
.01
L14
FB C110
.1 0805
CR16
1N4007
C118
.1 0805
U18B
74LS00
4
56
R152
470
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Broadcast Devices, Inc.
B
ADS-200
B
3 4Thursday, December 09, 2004
{}
Title
SizeDocument Number Rev
Date: Sheet of
DIM
DIM
MUTE5
MUTE6
+12V
-12V
AGND
DGND
EARTH
+12V
-12V
-12V
+12V
-12V
+12V
+12V
-12V
-12V
+12V
-12V+12V
+12V
-12V
R102
10.0K 1% MF
R137
10.0K 1% MF
R99
9.1K 1% MF
+
-
U14B
NE5532AD8
5
67
R124
27R
C64
.001
CR6
1N4148
R133
100 1% MF
JP9
JMPR-3X2
C69
.1
C84
.1
C61
.1
+
-
U11B
NE5532AD8
5
67
R136
10.0K 1% MF
J12
1 2
3
4
R128
1.3K 1% MF
C87
4.7uF 25V
R104
10.0K 1% MF
R103
10.0K 1% MF
+
-
U11A
NE5532AD8
3
21
8 4
C77
.1
R129
2.2K 1% MF
R98
2.2K 1% MF
C72
.1
R10810.0K 1% MF
R106
27R
C86
.001
R116
10.0K 1% MF
R114470
+
-
U15B
NE5532AD8
5
67
C81
200pF MICA
R95
10.0K 1% MF
C79
10uF 25V
R127
100.0K 1% MF
C88
.1
R117
27R
L9
FB
C66
.001
R1152.2K
R93
100.0K 1% MF
R134
10.0K 1% MF
C82
.1
C71
200pF MICA
R109
10.0K 1% MF
R100
10.0K 1% MF
J11
1 2
3
4
C83
10uF 25V
R110
10.0K 1% MF
+
-
U12B
NE5532AD8
5
67
C85
10uF 25V
JP11
JMPR-3X2
C74
.1 U13
SSM2404P
6
5
4
1
2
7
17
18
19
20
15
16
14
9
11 10
13 8
12
3
SW2 CTL
SW1 CTL
DGND
SW1 A
AGND
NC
V+
SW4 B
AGND
SW4 A
SW3CTL
SW4 CTL
V-
AGND
SW3 A SW2 A
SW3B SW2 B
AGND
SW1 B
C89
.001
C76
200pF MICA
C75
10uF 25V
R132
10.0K 1% MF
R96
2.2K 1% MF
R12510.0K
C63
10uF 25V
C73
10uF 25V
C68
200pF MICA
C65
.1
R111
27R
+
-
U12A
NE5532AD8
3
21
8 4
C62
4.7uF 25V
L10
FB
J9
1 2
3
4
+
-
U14A
NE5532AD8
3
21
8 4
C67
10uF 25V
+
-
U15A
NE5532AD8
3
21
8 4
R138
10.0K 1% MF
R101
10.0K 1% MF
R119470
R135
2.2K 1% MF
C70
10uF 25V
R105
10.0K 1% MF
DS6
LED
12
DS5
LED
12
C90
10uF 25V
R94
100 1% MF
R130
9.1K 1% MF
R120
10.0K 1% MF
J10
1 2
3
4
R1212.2K L12
FB
R118150
R122
10.0K 1% MF
CR5
1N4148
R112150
R123
10.0K 1% MF
C78
.1
R131
10.0K 1% MF
R97
1.3K 1% MF
L11
FB
C80
10uF 25V
JP10
JMPR-3X2
JP12
JMPR-3X2
R107
10.0K 1% MF
R113
10.0K 1% MF
R126
10.0K 1% MF
Table of contents
