Tomtom One Q1 - Buzzing noise

[garywilliams2010]

HI all, I am hoping someone can help me as I have a few problems. The main one that is bothering me is when the unit has loaded to the nav screen it makes a buzzing noise that remains until you turn the unit off. Everything else works perfectly and it navigates find it is just that.

Any ideas?

 

[dhn]

Welcome to TTF.

Is this buzzing sound when the unit is connected to the car charger? If so, what about on battery power? Or connected to a computer?

 

[canderson]

I know it will be difficult, but can you identify whether or not the buzzing sound is coming from the speaker? If not, it may be coming from the power inverter that provides the high voltage for the backlight. Can you describe the sound in any better detail?