TomTom One XL 22 Europe electrical buzz/hiss

[Vivant76]

Hi,
I received a new TomTom XL 22 Europe (Traffic edition), all seemed fine when I first used it - everything worked, speaker was good etc. I charged up the unit from the mains using a TomTom USB charger (the type where you get several plug attachments - UK, Europe, USA), but this didn't seem to give any problems.

When I went to turn on the TomTom again (2nd turn on from new), for some reason a noticable electrical 'buzz' and slight hiss was coming from the rear speaker. The system still operated fine - but the buzz would not go away and even after resetting the unit back to the factor defaults it stayed the same. I did notice that the screen brightness affected the noise levels of the buzz (louder the brighter it got).

I've taken it back for a replacement as it certainly didn't make any sort of noise when I first used it (for about an hour or two in my front room).

I'm interested to hear if any other TomTom XL 22 users notice any electrical buzzing or hiss from the speaker when its turned on, are all yours perfectly silent? Mine seemed to be...at first. I'm actually a bit concerned that the charger has done something to it.

Best regards

Aaron

[Andy_P]

LCD screens need a backlight which is usually powered by a high voltage/frequency 'inverter' circuit. This often causes nasty buzzes or interference when it goes faulty, and some do it (or produce an audible accoustic buzz) even when they haven't go a fault.

[Phil-w]

Hi,
I have also recently bought a TomTom XL 22 Europe (Traffic edition) and have heard the buzz. I think it made the noise from new, not very loud but in a quiet location it is audible. If I drove a roller I may notice it on the road but as my works vans has a few rattles anyway I don't notice it in use.

It does seem a fairly good piece of kit but I do find the USB connector in the bottom a pain to get in at times.

I wonder if anyone does a cradle mount yet to fit, never sure what fits what with all the different but similar sounding names.

Phil

[Vivant76]

Well, got a replacement TomTom 22 back from Amazon. This one is slightly quieter than the original, this one also buzzes slightly similar to the other but not as much. All I can assume is that its normal behaviour - still odd though as the first one was alot quieter when first turned on.

I'm happy though - its not noticeable now and works great in the car!

[alstone]

I bought a TomTom XL 30 series from Halfords the other day, and it had a loud high frequency noise comming from it, so I rang TomTom tecnical and they told me that there should be no noise from the unit, and to take it back for an exchang, This I did and the new one ok.

It appears that this is a fault that slips through quality control.

Al

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