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6

Troubleshooting

Transmitter has no power

•  Verify that the power supply is connected properly, (red/amber LED on the transmitter 

should be lit, depending on the mode selected). 

•  Check the power adapter function, (green LED=ON). Replace if faulty.

 
No audio or poor audio quality (distortion) 

•  Check the input signal connection. 
•  Verify that the Mic/Line switch setting is in accordance with signal level and input 

connected. 

•  Check the Audio Level Control (ALC) switch setting, (green LED=ON). If disabled, (ALC 

switch=OFF), the input level should be adjusted by Vol1 and Vol2 level controls. 

•  Check and adjust the audio level, if necessery. The Volume Control LEDs are indicating 

red occasionally if the unit is transmitting correctly.

•  Make sure the transmitter and receiver are operating at the same channel/frequency, 

(for best performance Stereo setting is highly recommended). Verify that both amber 

and green LED at the transmitter are lit, and receivers channel switch is set in S-mode 

(Stereo).

•  Make sure the receivers are in the line-of-sight and range of the transmitter and the 

IR-light is not blocked in any way. 

 
Audio Level indicators are not lit

•  Make sure the Indicator Light switch is in “ON” position
•  Verify that the audio input is connected properly. 
•  Check that the Mic/Line switch setting in accordance with signal level and input 

connected.

The Installation Guide is based on the information available at the time of printing and are 

subject to change without notice.

Summary of Contents for IR 1411

Page 1: ...User Guide Univox IR 1411 Infrared Transmitter Part no 650300 ...

Page 2: ...ge coverage up to 600m2 with a single unit Univox IR 1411 provides wireless assistive listening with supreme audio quality With single mono or dual channel stereo operation on 2 3 and 2 8 MHz carrier frequencies the unit is ideal for applications where information security and overspill control are of importance Please read this user guide carefully before installation and use of this product Incl...

Page 3: ...h Select between XLR 1 or 3 5 mm RCA 4 5 inputs Mic balanced XLR Mic or Line 1 level input with 12 V Phantom voltage 12 Line unbalanced RCA or 3 5 mm line level inputs mono or stereo 1 XLR Balanced Mic or Line input 2 Power Save mode switch 3 Mic Line switch 4 3 5 mm Line 1 2 Unbalanced line input 5 RCA Line 1 2 Unbalanced line input 6 Indicator Lights switch ON OFF 7 Header DC input output 8 DC p...

Page 4: ...eft LED indicates amber 2 8 MHz Right LED indicates green Stereo transmission 2 3 MHz Left and 2 8 MHz right both LEDs amber and green indicates 11 Automatic Level Control ALC switch OFF Auto OFF ALC disabled LED off Use level volume controls 13 to adjust the input level Auto ALC enabled LED indicates green The unit is equipped with automatic adjustment of the audio level recommended setting 12 Ph...

Page 5: ...2 Connect the supplied power adapter to the DC supply input 8 and set Power switch to ON The red LED indicates power connection 3 Set Audio Level Control ALC switch 11 to Auto green LED is lit Input level will be adjusted automatically recommended setting Note Setting the switch in OFF position will disable ALC green LED is off Audio level for each input must be adjusted manually by Volume control...

Page 6: ...e Control LEDs are indicating red occasionally if the unit is transmitting correctly Make sure the transmitter and receiver are operating at the same channel frequency for best performance Stereo setting is highly recommended Verify that both amber and green LED at the transmitter are lit and receivers channel switch is set in S mode Stereo Make sure the receivers are in the line of sight and rang...

Page 7: ... univox eu support Safety The installer is responsible for installing the product in a way that may not cause risk of fire electrical malfunctions or danger for the user Do not cover the unit or the power adapter Only operate the unit in a well ventilated dry environment Do not remove any covers as there is a risk of electric shock Please observe that the product warranty doesn t include faults ca...

Page 8: ...ximum input level 20dBm 7 75V Input 2 Line 1 Line 2 Unbalanced Line Stereo Input Two 3 5mm connectors Input 3 RCA IN Unbalanced Line Stereo Input Two RCA Phono connectors Input 10dBu Nominal 14dB headroom Impedance 10kΩ Indicators Green LED nominal range of audio level Red LED audio peak indicator approaching audio distortion Output connection BNC x 1 RF Output Voltage Approx 750 mVrms 2Vpp Output...

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