Whining!

[scubaGSA]

No not me well maybe a little bit I have 08 1200GSA with a zumo 550 connected to an autocom kit 300, with a pmr and a nokia n95. they all seem to work together but with the music on i get a whining in my left ear, the more i accelerate the louder it gets. I have spoken to autocom and they said it might be the routing of the leads but i have now moved them to run over the tank. Anyone got any bright ideas? its driving me mad.
Cheers,

Andy

 

[araspitfire]

I assume your Autocom installer or seller put in a ground loop isolator on whatever it is you have that is bike powered?

If you don't you will get this kind of whining.... Also if you have the ground loop isolator touching (or too close to) the battery it will whine...

Autocom sell them as quite small extension leads and call them something else..... but Maplins also sell them as GLI's and with a bit of end adapting will work fine... (I have non-Autocom ones connected between my bike powered Garming GPS and my Autocom)

Al...

 

[andyclift]

Agree it sounds like you need the isolating lead. Mine whined like crazy but since putting in the isolator its silent.

 

[scubaGSA]

I have the proper autocom isolated lead for the zumo, the kenwood pmr is also run from the bike but on the autocom battery pack. the isolator is away from the battery very frustrating!
Thanks for the help so far

 

[andyclift]

Have you tried totally disconnecting bike to bike and anything else on the autocom so you get back to Zumo-Autocom-helmet with nothing else connected to the system.

If it's clear then connect ONE other lead test again etc. until the whining comes back.

I used to get whining on my Autocom but it stopped when I bought my wife her own bike!!