Chriscc123 Posted September 18, 2016 Report Share Posted September 18, 2016 Hey there everyone! I just recently purchased a pair of used UM400as (block 470) from our friends over at Tai Audio in Florida. I thought all was well until a shoot about a week ago when I noticed that one of my transmitters had been very noisy. The way I would describe it; a white noise hiss that fills the floor. I've tried everything I can think of, changed freq, changed cables, changed mics, changed compat modes and even tried changing NR amount, but to no avail. The problem is now very consistent and very intrusive. I'm hoping with all my might that it's just user error and that the collective here can help me out. I've only ever experienced this once before with a UM400 that I rented about a year and a half ago. Didn't think to much about it then. I'm guessing the only other action I have is to send it into Lectro and have them repair it. The receiver that I'm using is Lectrosonics SRC. Thanks for the help in advanced and please let me know if you guys want any other info! Also a happy hello to everyone here at jwsound! Quote Link to comment Share on other sites More sharing options...
Constantin Posted September 18, 2016 Report Share Posted September 18, 2016 What did it sound like when you tested it before the job? Quote Link to comment Share on other sites More sharing options...
Chriscc123 Posted September 18, 2016 Author Report Share Posted September 18, 2016 19 minutes ago, Constantin said: What did it sound like when you tested it before the job? If I'm remember correctly it did sound a bit different then the other one, which was crystal clear. It almost sounded like compression, or as if the noise floor was a little higher. Edit: Just turned the gain pot all the up and down and it freaked out, made a bunch of squeeling sounds, starting to thing something may be up with the preamp? Now the just sounds like a fuzzy limiter was slapped on there. Quote Link to comment Share on other sites More sharing options...
afewmoreyears Posted September 19, 2016 Report Share Posted September 19, 2016 Just send it to the mothership.... and... contact your friends at Tai Audio... Simple enough... Quote Link to comment Share on other sites More sharing options...
Chriscc123 Posted September 19, 2016 Author Report Share Posted September 19, 2016 44 minutes ago, afewmoreyears said: Just send it to the mothership.... and... contact your friends at Tai Audio... Simple enough... Agreed, I'll have to see what my friends have to say about this tomorrow. Quote Link to comment Share on other sites More sharing options...
Chriscc123 Posted October 12, 2016 Author Report Share Posted October 12, 2016 Update: Well, just if anyone is interested, I sent it off to the mother ship and after a 2 long weeks of testing they finally pinpointed the problem to a noisy gain pot and a noisy filter board on the front panel ta5 jack. They replaced both. I'm guessing this kind of thing does not get better with age... Anyhow if anyone has this problem this might be the answer. Quote Link to comment Share on other sites More sharing options...
axel Posted October 14, 2016 Report Share Posted October 14, 2016 thanks for sharing Quote Link to comment Share on other sites More sharing options...
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