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Spectrum

 

 

Troubleshooting

 

19 

 

Troubleshooting 

 

Problem 

Solution

 

System will not power “ON”

 

Verify AC power; the power button will illuminate Blue when turned ON 
Check if system has been unplugged; reconnect to power outlet or 

use another device to ascertain power available at outlet 
Check circuit breaker 
Call maintenance for assistance

 

System is turned “ON” but there 

is no sound 
or 

System is in standby and does 

not “wake up” 

 

 

Turn “ON” microphone/ transmitter; the “TL” power button will illuminate 

to solid Blue when turned ON 

 

If the power button is illuminated red, the battery is low  

 

Ensure the mic is not muted (blinking light on mic indicates it is muted) 

 

Ensure gain/volume control knob on amplifier/receiver is turned up to 

mid-scale (12 o’clock position) 

 

On amplifier/receiver, ensure a green LED is illuminated just below Ch 

A or Ch B knob (depending on the microphone used). 

 

If no LED is illuminated: 

 

Check the green LED on the ceiling sensor 

If sensor LED is not lit: 

 

Sensor has been disconnected (check cable plug ends), or 

 

Power output to sensor has failed (Sensor or amplifier may need 

to be

 

replaced) 

Voice is distorted and/or signal 

drop-out occurs 

 

Verify that the sensor is not being covered  

Verify there is no obstruction between microphone and sensor   

Ensure there is no direct sunlight on sensor 
 

Ensure no other IR mics in room are turned on 

 

If sensor is mounted on a dark surface or without a flush ceiling 

surface, reception can be hampered. 

 

Summary of Contents for Spectrum IRS-9650

Page 1: ...Spectrum IMA 840 Classroom Audio System Installation Manual...

Page 2: ...logy and uses only premium quality components to assure many years of reliable performance We appreciate your confidence by your selection of our product It is TeachLogic s intent to uphold that confi...

Page 3: ...are free of materials harmful to the environment They conform to European RoHS guidelines for consumer products Power Cord Caution Power cable should be routed clear of foot traffic and supported clea...

Page 4: ...s Contact If you should encounter an unresolved issue please contact the TeachLogic customer service department for further assistance 760 631 7800 support teachtogic com teachlogic com Limited warran...

Page 5: ...n of Speakers 8 9 Installation of Ceiling Sensor 10 Integration 11 Page Mute Pass Through Integration 11 12 Fire Alarm Input 13 RS 232 Feature 15 Security Alert Feature 15 16 Configuration 17 Final Se...

Page 6: ...urce 11 Video Conference Output Volume Control 12 Video Conference Output Port 3 5 mm also suitable for Lesson Capture Back Panel 1 Speaker Output 2 Fire Alarm Mute Input 3 Page Input 4 Page Sensitivi...

Page 7: ...Spectrum System Diagram 6 www teachlogic com support teachlogic com 760 631 7800...

Page 8: ...the center of the ceiling maintain line of sight to teacher locations keep away from direct sunlight and electrical interference 3 Speakers The Spectrum can power 8 classroom speakers Mark location f...

Page 9: ...4 speakers space the next row s accordingly Ceiling Speakers Locate and identify the center most tile in each quadrant Wall Speakers First observe the shape of the room ceiling height door locations...

Page 10: ...of amplified audio rated for a minimum 4 ohm speaker load two 8 ohm speakers each connected in parallel provide 4 ohms impedance There are two blue phoenix style speaker connectors on the back panel...

Page 11: ...reliable performance For additional coverage or in large rooms a second IR sensor may be placed on ceiling or a wall and connected to the second sensor input As many as three sensors may be powered b...

Page 12: ...ers to the 2 pin Phoenix connector of the Page input 3 Reconnect the 2 pin green Phoenix connector 4 Determine the signal level of the paging system 4V 25V or 70V 5 Set the Page Mute slide switch to t...

Page 13: ...switched on or off by a side panel switch See Table 2 IMAPORTANT The system does not pass through paging audio signal to the speakers when the amplifier is powered off or no power is available PPT on...

Page 14: ...p to lower the overall decibel levels and help students and staff hear the audible fire alarm tones instruction within the classroom Audio resumes at original volume 11 seconds after closure ceases be...

Page 15: ...nel controller or other device The third party RS 232 device is connected via three wires to the back panel connector shown to the right TX Gnd RX This allows the receiver amplifier to be placed in an...

Page 16: ...it sends a signal to the ceiling sensor which passes through the amp to the security alert interface an electric relay The relay contacts opens or close depending on the normal status to pass the sig...

Page 17: ...hire microphone by holding the TL button until it illuminates 2 Once the TL is illuminated solid blue locate the Priority switch on the side of the microphone 3 While looking at the amplifier s power...

Page 18: ...be changed to channel B to avoid interference Watch the how to video on teachlogic com resources Note Next steps should be performed with a second person as the listener Stand under or in front of a...

Page 19: ...shing Indications of Security Alert pulse mode see section above Green Flashing Security Alert activated System Standby Function Standby Mode is a feature that reduces power consumption after the ampl...

Page 20: ...on mic indicates it is muted Ensure gain volume control knob on amplifier receiver is turned up to mid scale 12 o clock position On amplifier receiver ensure a green LED is illuminated just below Ch A...

Page 21: ...puter Wired Mic Input 1 aux input switchable to mic input Line Outputs Conferencing 3 5 mm with gain control front panel Assistive Listening System 3 5 mm with gain control rear panel Page Input 2 pin...

Page 22: ...Off Press Hold Mute Switch On Off Momentary Press blinks when muted Addt l Mic Gain Control Normal 3dB 6dB Audio Source Vol Gain Increase Decrease Channel Select A or B in battery compartment External...

Page 23: ...P N UMM 840 20220128 541 Main St Longmont CO 80501 TeachLogic com Support TeachLogic com 760 631 7800...

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