joshdegroa Posted May 24, 2013 Share Posted May 24, 2013 Hello all. Were having an issue with our ICS system on our planes. We have Navy C-130T's BUNO# 164995 that just got back from mod and all stations are weak when they transmit on ics. Hot mic, Call, and the radios all work 4.0. These are downing our birds and we can not figue out what the issue is. Does anyone have any ideas? Thanks!! Quote Link to comment Share on other sites More sharing options...
NATOPS1 Posted May 30, 2013 Share Posted May 30, 2013 Pull one CBer and see if the other stations clear up... If not reset 1st CB and pull the other to see if the issue clears. You may be able to isolate to one CB if not remove the cannon plugs (transmitter select and radio select panels) station by station and see if you can isolate it that way. More than one aircraft has this issue? If so look at the MOD and see where it ties into the ICS there may be wires on the wrong terminal (would not be the first time....) Quote Link to comment Share on other sites More sharing options...
kersey9502 Posted May 31, 2013 Share Posted May 31, 2013 Try seperating the audio common wiring going into the comm boxes. This line is what all of your audio is traveling on. There should be a break at FS245 to separate the flight deck from the cargo compartment. The easy way to resolve this issue is to just diconnect one box at a time from the IJB. Depending on what Mod has been performed, If they tied into this audio common wire you could see some resistance to ground on the wire. Quote Link to comment Share on other sites More sharing options...
CRAW Posted July 13, 2013 Share Posted July 13, 2013 Does the Long cord have the same issue? Quote Link to comment Share on other sites More sharing options...
tinyclark Posted July 18, 2013 Share Posted July 18, 2013 I have seen way too many issues with audio lines after TCTOs and Mods. Like kersey said, check all common audio lines. I always remove them and do ohm checks to ground. Put one back on and see how the audio sounds, then keep adding them. Usually, the culprit is an over aggressive shield splice/termination. Quote Link to comment Share on other sites More sharing options...
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