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DESCRIPTION
The 1700 Series Mixer/Power Amplifiers offer a highly flexible
integration of a user configurable six input mixer with a fully
protected power amplifier in one convenient cost effective
package.
The six input ports accept any of the several input modules or
output module. The programmable input modules may have their
muting circuitry configured in either "priority", "slave" mode, or
may be set to ignore muting commands. When a module
configured in the "Priority" mode is activated, modules in the
"slave" mode will be muted.
Circuitry is also provided to allow remote volume control of
individual inputs.
Multiple mainframes may be dynamically linked together.
Separate preamp-out and amplifier-in jacks allow the insertion
of equalizers or other, signal processing between the mixer and
the power amplifier.
A multi-tone generator and a compressor/limiter are also
provided.
INCLUDED ACCESSORIES:
1 - Operating/Service Instruction documents.
1 - Shorting Bar (Installed on Direct Output to OT in).
1 - "U" Shorting Bar (Installed on Preamp Out to Amp In).
4 - Rubber Feet (installed).
1 - System Configuration Label installed on top cover.
1 - International fuse.
1 - International 220/240 VAC voltage sticker.
1 - International Fuse sticker.
1 - Rack mount hardware kit.
OPTIONAL INPUT OUTPUT ACCESSORY
MODULES:
1781A Programmable Input Module.
1781AT Programmable Input Module with 1785A 600 ohm
to 10 kohm isolation transformer installed.
1783 Line Output Module.
1785A 600 ohm to 10 kohm Input Isolation Transformer.
1786 600 ohm to 600 ohm Output Isolation Transformer.
1791 Female XLR Connector.
1792 Male XLR Connector.
1793 Dual RCA Phono Connector.
1794 5-Lug Screw Terminals.
ELECTRICAL CONNECTIONS FOR THE 1700
SERIES MIXER/POWER AMPLIFIERS
Power Connections (120 Volt, 50/60 Hz)
The mainframe configuration for both mixer/ power amplifiers
comes with the power transformer's primary line voltage
strapped for 120-volt operation from the factory. Refer to Table
1 for exact strapping details and other voltage options.
NOTE:
Make sure the line voltage corresponds with the
selected line voltage power rating BEFORE you
connect the mainframe to the alternating current
line.
Power Connections (100, 200, 220, or 240 Volt; 50/60 Hz)
1700C/1715C Only
T
a
b
e l
. 1
A
C
L
i
n
e
P
i r
m
a
y r
L
n i
e
V
l o
a t
g
e
W
i h
e t
1
0
0
v
5
1
2
0
V
2
2
0
0
V
5
2
2
0
V
5
2
4
0
V
2
You may change the mixer/power amplifier's 120-volt power
connection to a 100-, 200-, 220-, or 240-volt power connection
by restrapping the power transformer's primary line voltage. Use
the following procedure to change the factory strapping to
another line voltage.
1. If you connected the mixer/power amplifier to an
alternating current power source, disconnect it.
2. Remove and save the nine screws that secure the mixer/
power amplifier's top cover. There are two screws near
the bottom of each side, two screws on top near the rear
edge of the front panel, and three screws at the top edge
of the rear panel. Refer to Figure 1 for details.
The numbers in Table 1 correspond to the numbered
positions on the alternating current terminal block
connector, which is adjacent to the power transformer. To
select a line voltage, install the colored primary lead wires
into the corresponding numbered positions on the terminal
block.
3. Locate the voltage selection terminal block between the
side of the chassis and the power transformer.
Figure 1. Top Cover Removal
4. While referring to Table 1, disconnect the primary lead
wires from the terminal block. Pull each wire firmly to
disengage the push-on connector. Then reconnect each
lead wire into its designated position on the terminal block
that corresponds to the desired line voltage. Press each
connector to snap into place.
T
a
b
e l
. 2
A
C
L
n i
e
V
l o
a t
g
e
1
0
0
V
1
2
0
V
2
0
0
V
2
2
0
V
2
4
0
V
3
V
o
t l
a
g
e
S
e
e l
c
i t
o
n
a
n
d
S
r t
a
p
p
i
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g
r T
a
n
s
o f
r
m
e
r
P
i r
m
a
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L
e
a
d
C
o
o l
r
Y
l e
o l
w
R
e
d
B
u l
e
O
2
1
1
9
5
1
1
3
2
7
1
0
2
7
8
5
7
8
A
C
F
u
s
e
S
e
e l
t c
o i
n
C
h
a
t r
A
C
L
n i
e
F
u
s
e
1
7
0
7
C
1
7
1
5
3
5 .
A
2 /
5
0
V
7
0 .
A
2 /
5
3
5 .
A
2 /
5
0
V
7
0 .
A
2 /
5
2
0 .
A
2 /
5
0
V
4
0 .
A
2 /
5
2
0 .
A
2 /
5
0
V
4
0 .
A
2 /
5
2
0 .
A
2 /
5
0
V
4
0 .
A
2 /
5
C
h
a
t r
r
a
n
g
e
3
9
8
1
0
1
0
C
0
V
0
V
0
V
0
V
0
V
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