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  1. 2

    Lightspeed Delta Zulu / GTN 750xi Issue

    Hi John. That's it! Switched the headset from Mono to Stereo. It works perfectly now. Thanks for all your help!
  2. 2

    Lightspeed Delta Zulu / GTN 750xi Issue

    Thanks for the idea. I'm going to plug into my handheld radio with the Lightspeed headset and see if is working through the handheld.
  3. 2

    Lightspeed Delta Zulu / GTN 750xi Issue

    Thank you for the tip. However, I already have the small washer from Lightspeed. The washer fixed the issue when I had the old GNS 530 installed. I've not been able to get the Lightspeed headset to work with the GTN 750 since it has been installed. David Clark headset works with the new GTN...
  4. 2

    Lightspeed Delta Zulu / GTN 750xi Issue

    Lightspeed Delta Zulu works about 3 seconds when first plugged in then goes dead. Cannot receive or transmit. The headset worked without any issues before GTN 750 xi was installed in aircraft. Anyone experienced this issue?
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