P S - 7 0 4 F O U R - C H A N N E L P O W E R S U P P L Y
1 - 4
PS-704 OVERALL DESCRIPTION
A brief description of the connectors and controls follows. (Refer to Figure 1-2.)
Figure 1-2: Front and Back Panels of PS-704
FRONT PANEL
1.
POWER SWITCH:
Switches the AC power to the PS-704 on and off. The
adjacent
green
LED will illuminate when the power is
on
.
2.
OVERLOAD INDICATORS:
The respective
red
LED for each channel (
A,
B, C, D
) will illuminate if the PS-704 senses a short or overload on that
channel. When the fault is removed, the PS-704 will automatically reset and
the LED will go out.
3.
PROGRAM SEND:
Slide switch on each channel (
A, B, C, D
) selects that
channel to receive the program input coming into the PS-704. All channels
receive the same signal from the rear panel
program
input.
4.
PROGRAM SEND LEVEL:
Trimpot adjusts the audio level of the program
sent to its respective channel.
REAR PANEL
5.
PROGRAM INPUT:
Female 3-pin XLR jack accepts a balanced or
unbalanced line-level input.
6.
PROGRAM INPUT LEVEL:
Adjusts the program level coming into the
PS-704. Used with the
program send level
controls to achieve desired system
program levels.
7.
TERM. ON/OFF:
Slide switch (one per channel) selects whether the
PS-704 will provide termination for that channel. The default position is
on
.
8.
INTERCOM LINE CONNECTOR:
There are two 3-pin male XLR
connectors per channel, wired in parallel or “looped-through.”
9.
AC POWER SUPPLY INPUT:
Connects to AC with an IEC cable. The
PS-704’s power supply will accept any line voltage between 100 volts and
240 volts AC @ 50 Hz - 60 Hz. It will automatically adjust to the line
voltage. There is no need for a selector switch or an external fuse.
Send
Level
Overload
Program
On
Off
Channel A
Power
PS-704
Send
Level
Overload
Program
On
Off
Channel B
Send
Level
Overload
Program
On
Off
Channel C
Send
Level
Overload
Program
On
Off
Channel D
PROGRAM INPUT
LEVEL
ADJUST
CHANNEL D
TERM
D
ON
OFF
CHANNEL C
TERM
C
ON
OFF
CHANNEL B
TERM
B
ON
OFF
CHANNEL A
TERM
A
ON
OFF
PS-704
1
2
3
4
5
8
9
7
4-Channel
Power Supply
6
Output: 30V, 1.2A Continuous, 2A Peak
