Echo Posted July 1 Report Posted July 1 I had an audio panel and two place intercom installed this spring. Was working fine, but now when I transmit I can hear the initial sound, but can't hear myself in the headset and no transmission is sent. -I can hear other transmissions -I have tried radio isolation -I have tried using co-pilot jacks Thanks for input. Scott Quote
PT20J Posted July 1 Report Posted July 1 Do you have two comm radios? Does it do this on both? Could be a bad radio. If it is a modern audio panel with built in intercom, it will have a failsafe feature to connect the headset directly to comm 1 when it is powered down. Pull the breaker and see if it affects anything. Would help if you could tell us what radios and audio panel/intercom you have. Quote
PeteMc Posted July 1 Report Posted July 1 (edited) Really hard to say while we're all sitting here at our desks... But if it worked before, it sounds like the installation was done correctly, so it's on to trouble shooting. There are really only a few things you can check, so it sounds like a trip to the Avionics Shop is in your future. But a few things you can do CAREFULLY are: 1) Check to make sure the connectors on the back of the Audio Panel and the Radio are pushed in all the way. ("Is it plugged in???" was my mantra every time one of my staff came to me with an issue. Frequently there was a loose connector or some other issue with the cables or adapters they had run.) 2) Do you have two Comms as @PT20J asked? Do they have the same issue or does the other one work? If the other one works and they are the same Make/Model, swap them and see if the problem is the #1 Comm position or it is the #1 Radio. 3) If you know someone with the same Make/Model Comm as you, maybe they'll let you slide their radio in your plane and see if you still have the problem. That also will tell you if it is the radio or something else (Comm Panel, bad wire(s), bad connector, etc.). NOTE: One down side of this is if there is a short or some other issue that damaged your radio, it may damage theirs when you do the test. Unlikely, but still a possibility. Beyond that it's just best to take it to the shop where they can quickly bench test the Radio and the Audio Panel and see if they are working properly. Edited July 1 by PeteMc Quote
Echo Posted July 1 Author Report Posted July 1 Thanks for replys. Two coms. Both working. BK audio panel and PS engineering intercom. (Both were recently installed). Appears to be intercom issue. Avionics installer is sorting, but thought I would reach out here as well. Quote
PT20J Posted July 1 Report Posted July 1 1 hour ago, Echo said: BK audio panel and PS engineering intercom. (Both were recently installed). Given this description, I take it this was a new installation using used equipment? Probably best to have the installer figure it out, especially if it sold you the equipment. Quote
LANCECASPER Posted July 1 Report Posted July 1 Exactly the reason no installer wants to install used equipment. They get to find out after hours of troubleshooting why it was removed in the first place. 1 Quote
Shadrach Posted July 1 Report Posted July 1 On 7/1/2024 at 6:59 PM, LANCECASPER said: Exactly the reason no installer wants to install used equipment. They get to find out after hours of troubleshooting why it was removed in the first place. All of the installers in my area sell used equipment and are happy it install it for the buyer. It’s just an intercom. It’s not like it has unreported accidents and skipped oil changes. It’s a solid state piece of electronic equipment, it should be pretty easy to diagnose on the bench. 1 Quote
Echo Posted July 2 Author Report Posted July 2 Thanks Ross. I have bought a bunch of "perish the thought" used equipment over the 20+ years I have owned Mooney aircraft. The experiences have been positive in that there has been significant improvement in ability and function without the expense of latest and greatest. Getting feedback on pros and cons of buying used was NOT what I was looking for in my post. If I have to replace the stereo intercom it is .2 AMU's...No biggie. If the audio panel I already have a spare. Quote
LANCECASPER Posted July 2 Report Posted July 2 3 hours ago, Shadrach said: All of the installers in my area sell used equipment and are happy it install. it for the buyer. It’s just an intercom. It’s not like it has unreported accidents and skipped oil changes. It’s a solid state piece of electronic equipment, it should be pretty easy to diagnose on the bench. I've had used avionics installed in years past and it wasn't too difficult to find someone to do it. However now it's hard to get new avionics installed in most areas, let alone used avionics. If I remember correctly last fall @Echo was having a hard time finding someone to do the work. Glad he found someone willing. Quote
PT20J Posted July 2 Report Posted July 2 Used equipment can be a good deal. But it is, after all an unknown. I've bought some and had good luck and others not so much. My point was only that it's hard enough to troubleshoot from a distance, let alone an unknown model used BK audio panel and unknown model used PS intercom recently installed in an airplane that apparently had neither. 2 Quote
Shadrach Posted July 2 Report Posted July 2 10 hours ago, LANCECASPER said: I've had used avionics installed in years past and it wasn't too difficult to find someone to do it. However now it's hard to get new avionics installed in most areas, let alone used avionics. If I remember correctly last fall @Echo was having a hard time finding someone to do the work. Glad he found someone willing. No doubt its hard to get on the schedule in many parts of the country but I am not sure that is a used/new thing. It's likely more the scope of the upgrade (which is obviously mostly new boxes). That being said, I have always been under the impression that the margins on yellow tagged equipment were as good or in may cases, better than new. Quote
LANCECASPER Posted July 2 Report Posted July 2 (edited) 24 minutes ago, Shadrach said: No doubt it’s hard to get on the schedule in many parts of the country but I am not sure that is a used/new thing. It's likely more the scope of the upgrade (which is obviously mostly new boxes). That being said, I have always been under the impression that the margins on yellow tagged equipment were as good or in may cases, better than new. No doubt, they pay very little and sometimes nothing. However bringing them used equipment and trying to get them to install something they didn’t sell, which was @Echo’s challenge last fall, is tough to get done. Then to ask them to stand behind the installation of that is even more challenging. Edited July 2 by LANCECASPER 2 Quote
N201MKTurbo Posted July 2 Report Posted July 2 Do you see the TX indication on the individual radios when you try to transmit? Do you hear the receive audio through your headset? If you see the TX indication and don't hear the sidetone (your voice while transmitting), then the cause must be the TX audio connection between your intercom and the audio panel. Quote
Echo Posted July 2 Author Report Posted July 2 35 minutes ago, N201MKTurbo said: Do you see the TX indication on the individual radios when you try to transmit? Do you hear the receive audio through your headset? If you see the TX indication and don't hear the sidetone (your voice while transmitting), then the cause must be the TX audio connection between your intercom and the audio panel. Yes. Yes. OK, Appreciate the input. Thanks, Scott Quote
PT20J Posted July 2 Report Posted July 2 Did you try pulling the CB on the intercom as I suggested? That should cause a direct connection and eliminate the intercom if it works. Bendix King silver crown avionics use PC edge connectors to the tray and these can become intermittent. 1 Quote
Pinecone Posted July 2 Report Posted July 2 7 hours ago, Shadrach said: No doubt its hard to get on the schedule in many parts of the country but I am not sure that is a used/new thing. It's likely more the scope of the upgrade (which is obviously mostly new boxes). That being said, I have always been under the impression that the margins on yellow tagged equipment were as good or in may cases, better than new. The problem is when owners buy used and then want the shop to install without any margin on the parts. Also happens with new boxes. 1 1 Quote
PT20J Posted July 3 Report Posted July 3 3 hours ago, Pinecone said: The problem is when owners buy used and then want the shop to install without any margin on the parts. Also happens with new boxes. And then complain that the installation cost more than they paid for the parts. 1 Quote
Pinecone Posted July 3 Report Posted July 3 9 hours ago, PT20J said: And then complain that the installation cost more than they paid for the parts. Yeap. Or that they paid more for install that their buddy who paid the shop for the equipment, giving them some profit on the sale. 1 Quote
Echo Posted July 3 Author Report Posted July 3 You guys crack me up. Do you install avionics? Do you have a bunch of Garmin stock? Seriously, the direction you have taken this thread is sad. I asked for suggestions on what might be causing an issue. That is it. Thanks for suggestions on troubleshooting. Comments on buying used or those that do complaining about it are unwarranted and really not helpful. Quote
MikeOH Posted July 4 Report Posted July 4 @Echo LOL! YOU crack me up! Did you not get help to your question? Have you not been on fora before? Are you not familiar with thread drift? And then you complain?? SHEESH! 1 1 Quote
Echo Posted July 13 Author Report Posted July 13 In the interest of closure, not because anyone actually gives a flying F...It was a pin that came out of the intercom. One pin. Not a crappy piece of used avionics. The issue was one pin either not being installed properly, or with installation NOT staying seated. It is fixed. Yeah me. 1 Quote
PT20J Posted July 13 Report Posted July 13 35 minutes ago, Echo said: In the interest of closure, not because anyone actually gives a flying F...It was a pin that came out of the intercom. One pin. Not a crappy piece of used avionics. The issue was one pin either not being installed properly, or with installation NOT staying seated. It is fixed. Yeah me. No, we all care because that's how we learn. So, bad install. No one said, by the way, that your problem was due to "crappy piece of used avionics." My original comment was just that it appeared from your posts that it was used equipment (which adds a layer of uncertainty) and you should take it back to whomever installed it for remediation - which I am assuming is how you solved your problem. 40 minutes ago, Echo said: Boo friggin' hoo to shop margins by the way. I have no idea what this means. But my guess is that you buy used equipment because you don't want to pay for new, you don't like to pay shop rates to get it fixed when it doesn't work, and you hope to get answers from Mooneyspace volunteers because it it free. 2 Quote
N201MKTurbo Posted July 13 Report Posted July 13 1 hour ago, Echo said: In the interest of closure, not because anyone actually gives a flying F...It was a pin that came out of the intercom. One pin. Not a crappy piece of used avionics. The issue was one pin either not being installed properly, or with installation NOT staying seated. It is fixed. Yeah me. Which pin was it? Quote
MikeOH Posted July 13 Report Posted July 13 26 minutes ago, N201MKTurbo said: Which pin was it? Echo's going to want you to pay shop rate for that answer Quote
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