I keep forgetting to hit "Reply All" for this list too (Jim, can you change the settings for that? so replies can go to the group?)
I'll assume that it really is happening on multiple phones and not just on one (Jim said he was on site testing with a butt set). My thoughts go to a) external interference- something near the ksu causing incredible rf noise- or a nearby radio station type thing b) something messed up inside the phone system- if it is happening ext to ext it could be the ext circuit card. Substitution seems like a good troubleshooting technique... if you have the right spare parts. Try a different ksu or at least stick an ext expansion card on it and see if those exts also have the same problem (let me know if you need one of those, I got a bunch). Somewhere in the back of my memory I seem to recall a problem like that,but I'll probably have to sleep on it. Charles Charles Patterson [email protected] Patterson Communications, Inc. Tarrytown, NY On Wed, Aug 11, 2010 at 8:52 PM, Larry <[email protected]> wrote: > Forgot to copy the group, might help someone someday. > > It's possible for a digital set to have a bad buzz saw noise then in > speakerphone if the shield can on the microphone becomes disconnected from > the ground wire to the circuit board. The aluminum can is crimped to the > small terminal board and picks up ground from the board trace under the > crimp. The glue they applied over the solder joint prys open the crimp and > RF gets into the amplifiers. Carefully remove all the glue from the board > and the can makes contact again, noise stops. > > It is generally just one phone, but the client blows it up to a general > everything is broke ;-) If it really is on everything, make sure the ksu > has a good ground. Troubleshoot where the noise is coming from. One thing > at a time. > > -l > > > Jim Gottlieb wrote: >> >> I've got a KX-TD816 fully equipped and the customer started reporting >> static on outside calls. I'm on site now and my hope that it was a telco >> problem has been dashed. >> >> The loud static seems to come and go on nearly any analog connection. >> Digital sets only get it when connected to analog lines (most sets are >> digital, hence the initial report), but analog sets can get it at any >> time. >> On analog stations, sometimes you pick up and hear only static for several >> seconds, then it goes away and you get internal dial tone. Then the >> static >> may return. It doesn't seem to be isolated to any particular card, >> station, or line. >> >> While hearing the really bad static on a phone on an outside line, I >> listened to that line on a butt set, and it was clean. Only the internal >> user is hearing the static. >> >> Any ideas? >> >> Thanks... > > > _________________________________________________________________ > KX-T Mailing list --- http://kxthelp.com/ > Subscription changes: http://kxthelp.com/mailman/listinfo/kxt > _________________________________________________________________ KX-T Mailing list --- http://kxthelp.com/ Subscription changes: http://kxthelp.com/mailman/listinfo/kxt
