tomtom /autocom problem

dickins · Posted: Sun Jul 19, 2009 8:27 pm Post subject: tomtom /autocom problem

I have just wired my autocom 150 duo to my Triumph sprint as per autocoms instructions,and everything works fine apart from when I fit the charger to the tomtom unit then I get a loud clicking sound,this only occurs when the charger is plugged in.
When I revert back to a portable battery for the autocom unit there is no interference at all,even with the tomtom charger.
Any ideas.
Just checked it again,now when i plug in the charger the tomtom powers off,as before ,with the portable 9v battery everything works fine,it seems that I can't have the autocom powered by the bike and the tomtom charging simultaneousley.
The model is a tomtom onev3 which i have added an earphone jack socket to . Crying or Very sad

chookman · Posted: Fri Jul 24, 2009 7:34 am Post subject:

I am by no means an expert but a loud clicking is possibly caused by your ignitin system. I have a Rider 2 on my Honda Deauville connected to an Autocom via the latter's Bluetooth adapter and have had no problems with it at all. If you have yur TT hard-wired to the Autocom unit you might need to improve the screening of the cable, particularly if the cable is routed close to ignition components.
_________________
Colin

mikealder · Posted: Fri Jul 24, 2009 7:56 am Post subject:

Run the audio cable from the TomTom through a ground loop issolator, this will get rid of the interference/ noise - Mike

evostick · Occasional Visitor Joined: Jan 02, 2004 Posts: 4

Although not on a bike but in a Caterham 7. I have no problem with my Tomtom and Autocom. I was supplied with an isolated cable which I was told would be necessary if both items were powered by the car battery.

dickins · Posted: Sun Jul 26, 2009 6:49 pm Post subject:

dickins · Posted: Tue Jul 28, 2009 7:55 pm Post subject:

Isolator sorted the problem out perfectly Very Happy

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