Electro-voice SR-400 User Manual
Telex
Operating Instructions
SR-400
17 Channel
Synthesized Receiver
R
SR-400 17 Channel Synthesized Receiver
SPECIFICATIONS
Temperature Range ....................0to+50degrees C
Supply Voltage....................2-3Volts,(2)AABatteries
Battery Life...........................16-20 Hrs - Alkaline
Frequency Response 100-10 kHz .......Less than 3 dB Variation
Sensitivity (12 dB SINAD @ 74 MHz) ............... 1µVmax.
Distortion .................................less than 2%
Audio Output @10% Distortion
8-10 Hrs - Nickel-cadmium
Battery Input
Voltage 8 ohm 32 ohm
2.0V 15mW 10mW
3.0V 80mW 50mW
Controls and Connections ..........Volume OFF/ON Switch;
CHANNEL ASSIGNMENT
Channel # Freq. (MHz) Channel # Freq. (MHz)
A 72.1 J 75.5
B 72.2 K 75.6
C 72.3 L 75.7
D 72.4 M 75.8
E 72.5 N 75.9
F 72.6 O 74.7
G 72.7 P 75.3
H 72.8 Q 75.4
I 72.9
Treble Boost Button; Set Button
Audio Output Jack
-1-
OPERATING FEATURES
Volume OFF/ON Control
This thumbwheel control serves as both an off/on switch and
as a volume control. The Receiver is turned off when the control
is in the "O" position, and the volume is loudest when the control
is in the extreme opposite position.
NOTE: The Headphone Jack must have a headphone, or
other accessory, plugged in to turn on the SR-400. Power
“ON” is indicated by the activation of the LCD display.
LCD Display
1. Channel Display A through Q, low battery indicator
2. Lock Indicator (see Change Lock Out)
3. High Frequency Emphasis indicator (when symbol is showing)
4. Enhanced Dynamic Range Indicator
2
1
3
E.D.R.
E.D.R.
4
LCD Display
-2-
Channel Selection
1. Turn the receiver on and plug a listening device into the head
phone jack. A channel letter will show in the display.
2. Press the set button once and the Channel indicator will flash.
3. Press the button and the Channel will cycle up. Match the
channel to the transmitter being used (ST-200, ST-300, PST-16,
or PST-170).
4. Press SET, the channel indicator will stop flashing and the chan
nel is set.
Enhanced Dynamic Range (E.D.R.) Operation
The Telex ST -300 and PST-170 Transmitters are equipped
with E.D.R., Enhanced Dynamic Range (companded) audio.
This mode greatly improves the audio signal to noise ratio
when used with the Telex Model SR-400 receiver. The
E.D.R. mode must be selected on both the transmitter and
receiver to be effective.
1. To engage the E.D.R. function turn the SR-400 off with the volume control thumb wheel.
2. Press and hold the SET button while you turn the SR-400 back
on. The E.D.R symbol will be displayed in the lower right corner
to indicate the mode is active.
3. Repeat the procedure to disable the E.D.R. function.
-3-
-
-
Loading...