Page 1 of 2 12 LastLast
Results 1 to 10 of 19

Thread: Trig TY91 Loss of Sidetone

  1. #1
    Senior Member N867SP's Avatar
    Join Date
    Oct 2013
    Location
    Severna Park, MD
    Posts
    328

    Default Trig TY91 Loss of Sidetone

    So a few weeks back I took a Saturday AM flight. A few minutes into the flight the display on the TY91 went blank and after cycling power screen came back on. After this there was no sidetone, could not hear my voice when transmitting over radio. After about 30-40 min later sidetone came back. After landing I checked connectors and preformed ops ground check, all okay. Flew a few more times later that week without issue. Plane sat for past 2 weeks, went to fly yesterday and no sidetone again...never came back. Went home and grabbed the manual, checked to see what type of user sidetone control the unit offers. Unit was set around 10% (graphic bar readout), I adjusted this and performed ground check. If I turned it all the way up I could just make out my voice while transmitting. I tired both LEMO ports with two separate headsets, not that I thought that would make a difference as intercom function works in both positions.

    I'm wondering if anyone else has had a similar issues with the Trig. I'm thinking whatever happened when the display blanked out one me might be the root cause. Oh, when display went blank I could still hear ATC and they could hear my transmissions.

    Pete


    Sent from my iPad using Tapatalk
    Pete
    ✈️CCK-1865-0078 N9PW
    Severna Park, MD W18

  2. #2
    Member
    Join Date
    Dec 2016
    Location
    Yakima WA
    Posts
    38

    Default Re: Trig TY91 Loss of Sidetone

    Just a bit of a hunch, though my thought is that the unit suffered some internal failure since it went dark on you, but what intercom - if any - are you using? You might try turning the intercom off and seeing if anything has changed in what you hear thru the headset, I'm presuming you are getting incoming into the phones ok which would preclude any issue on the headphones side of things. If you aren't using any sort of intercom and just using the one built into the trig unit then that pretty much excludes any external problem. I am not aware of there being too many issues with the trig coms in and of themselves, we use them on the x cub combined with the pm3000 remote, but like any electronic device they can and will fail no matter how low the failure rate is. Best of luck on this.

  3. #3
    Senior Member N867SP's Avatar
    Join Date
    Oct 2013
    Location
    Severna Park, MD
    Posts
    328

    Default Re: Trig TY91 Loss of Sidetone

    Quote Originally Posted by mikesutton View Post
    Just a bit of a hunch, though my thought is that the unit suffered some internal failure since it went dark on you, but what intercom - if any - are you using? You might try turning the intercom off and seeing if anything has changed in what you hear thru the headset, I'm presuming you are getting incoming into the phones ok which would preclude any issue on the headphones side of things. If you aren't using any sort of intercom and just using the one built into the trig unit then that pretty much excludes any external problem. I am not aware of there being too many issues with the trig coms in and of themselves, we use them on the x cub combined with the pm3000 remote, but like any electronic device they can and will fail no matter how low the failure rate is. Best of luck on this.
    I'm using the pm3000 as well, standard wVFR panel setup. Flew again and no sidetone, then back it came, another 2.5hrs that day and sidetone was there entire time. Intercom seems to be working fine. Thinking unit issue as well. Looked over Trig warranty, 2yrs from "date of installation by certified installer" wondering how that works for E-AB? Luckily the units see,s to be pretty inexpensive so thinking I might just order another as a backup. Wish I lived somewhere that radio wasn't a life or death requirement


    Sent from my iPad using Tapatalk
    Pete
    ✈️CCK-1865-0078 N9PW
    Severna Park, MD W18

  4. #4
    Member
    Join Date
    Dec 2016
    Location
    Yakima WA
    Posts
    38

    Default Re: Trig TY91 Loss of Sidetone

    Well Im throwing a dart here, since I cant get any closer to your aircraft, but the only thing I might do if I was trouble shooting would be to turn off the intercom and see if you can still hear your sidetone on transmitting. I have seen sidetone issues that turned out to be on the phone side rather than the mic side, but I dont think thats your situation and if you can hear atis or any other incoming transmission in your phones then that side is ok and it would have to be on the mic side, turning off the intercom simply removes it from the equation because the audio signals simply pass thru it when off. You could also try using standard non anr headset to verify that its not in the headset but again, I think it has pretty much divulged itself to be in the com. Interesting that its somewhat intermittent, I could see where a wire could become an intermittent issue but that usually becomes a permanent one once they are separated. The fact it went dark on you and then came back seems to be evidence to me. As far as any warranty issues, thats completely out of my provenance entirely, I just install them and fix them, but if its internal to the unit I dont mess with them. Best of luck on this.

  5. #5
    Senior Member N867SP's Avatar
    Join Date
    Oct 2013
    Location
    Severna Park, MD
    Posts
    328

    Default Re: Trig TY91 Loss of Sidetone

    Quote Originally Posted by mikesutton View Post
    Well Im throwing a dart here, since I cant get any closer to your aircraft, but the only thing I might do if I was trouble shooting would be to turn off the intercom and see if you can still hear your sidetone on transmitting. I have seen sidetone issues that turned out to be on the phone side rather than the mic side, but I dont think thats your situation and if you can hear atis or any other incoming transmission in your phones then that side is ok and it would have to be on the mic side, turning off the intercom simply removes it from the equation because the audio signals simply pass thru it when off. You could also try using standard non anr headset to verify that its not in the headset but again, I think it has pretty much divulged itself to be in the com. Interesting that its somewhat intermittent, I could see where a wire could become an intermittent issue but that usually becomes a permanent one once they are separated. The fact it went dark on you and then came back seems to be evidence to me. As far as any warranty issues, thats completely out of my provenance entirely, I just install them and fix them, but if its internal to the unit I dont mess with them. Best of luck on this.
    Mike,

    Thanks for the help, I did try with intercom turned off as well. No change. Now that it's working again it's really hard to track down. I haven't tried the non-ANR headsets but I will the next time it fails. Currently it works, even when I lose sidetone so that's a plus. It's just tough to talk and not hear yourself. I'm going to reach out to Trig and see what their thoughts are, both about the issues as well as their interpretation of the warranty.

    Today looks like a nice day so I hope to get up this afternoon and do some more troubleshooting.

    Pete


    Sent from my iPad using Tapatalk
    Pete
    ✈️CCK-1865-0078 N9PW
    Severna Park, MD W18

  6. #6
    Member
    Join Date
    Dec 2016
    Location
    Yakima WA
    Posts
    38

    Default Re: Trig TY91 Loss of Sidetone

    Glad I could at least try to help, the fact that the intercom itself works leads me to believe that it is in the com. I usually will try the radio by itself and then the intercom by itself on these types of problems, and also use a standard headset so I can hear - or not hear - whatever it is that I am looking for. The fact that the tower can hear you when you transmit out even if you cant also leads me to think its internal to the box. Many times you will find a set of aux jacks that are wired directly to the com on intercom equipped aircraft that bypass it entirely in the event of a failure or the removal of the intercom, and often on those you dont hear the sidetone at all unless you are transmitting, so again, if you still arent then it leads me to further think its an internal com issue.

    Mike

  7. #7
    Senior Member Jon Delamarter's Avatar
    Join Date
    Feb 2013
    Location
    Yakima, WA
    Posts
    205

    Default Re: Trig TY91 Loss of Sidetone

    Pete,

    MidContinent handles support for Trig in North America. Contact info is HERE.

    Thanks,
    Jon Delamarter
    Customer Support Manager
    Cub Crafters, Inc.
    jond@cubcrafters.com
    Office (509)367-5200
    Cell (509)833-6993

  8. #8
    Senior Member N867SP's Avatar
    Join Date
    Oct 2013
    Location
    Severna Park, MD
    Posts
    328

    Default Re: Trig TY91 Loss of Sidetone

    Quote Originally Posted by mikesutton View Post
    Glad I could at least try to help, the fact that the intercom itself works leads me to believe that it is in the com. I usually will try the radio by itself and then the intercom by itself on these types of problems, and also use a standard headset so I can hear - or not hear - whatever it is that I am looking for. The fact that the tower can hear you when you transmit out even if you cant also leads me to think its internal to the box. Many times you will find a set of aux jacks that are wired directly to the com on intercom equipped aircraft that bypass it entirely in the event of a failure or the removal of the intercom, and often on those you dont hear the sidetone at all unless you are transmitting, so again, if you still arent then it leads me to further think its an internal com issue.

    Mike
    Thanks Mike,

    Since I purchased the pre-wired panel package, I didn't spend too much time studying the wiring diagrams for the majority of the avionics, just plug-n-play. I did check all connectors recently and gave everything a wiggle last time I lost sidetone...nothing obvious. I think I'll take another look and connectors, pins, etc just to make sure I've covered all external possibilities before pulling the unit. Started to carry my handheld now since this is a single comm aircraft. Don't need my own private military air show because I've lost two way comm. I'll let you know what I find and thanks again for all the info and quick responses.

    Pete


    Sent from my iPad using Tapatalk
    Pete
    ✈️CCK-1865-0078 N9PW
    Severna Park, MD W18

  9. #9
    Senior Member N867SP's Avatar
    Join Date
    Oct 2013
    Location
    Severna Park, MD
    Posts
    328

    Default Re: Trig TY91 Loss of Sidetone

    Quote Originally Posted by Jon Delamarter View Post
    Pete,

    MidContinent handles support for Trig in North America. Contact info is HERE.

    Thanks,
    Jon,

    Thanks for the link, was wondering how international repairs were going to work. I'll grab the info from my unit and give them a call to discuss.

    Pete


    Sent from my iPad using Tapatalk
    Pete
    ✈️CCK-1865-0078 N9PW
    Severna Park, MD W18

  10. #10
    Senior Member N867SP's Avatar
    Join Date
    Oct 2013
    Location
    Severna Park, MD
    Posts
    328

    Default Re: Trig TY91 Loss of Sidetone

    Quote Originally Posted by N867SP View Post
    Jon,

    Thanks for the link, was wondering how international repairs were going to work. I'll grab the info from my unit and give them a call to discuss.

    Pete


    Sent from my iPad using Tapatalk
    Just spoke to MidContinent and they said to pull the units and send them back. Warranty starts at date unit was put into service (aka first flight) 2yrs. Even out of warranty pricing is very reasonable, $100 OH exchange for the remote, $350 OH exchange for the transmitter, plus the 2yr warranty restarts from date of OH.


    Pete Meyer
    Severna Park, MD
    CCK-1865-0078
    ✈️N9PW
    Pete
    ✈️CCK-1865-0078 N9PW
    Severna Park, MD W18

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •