Question about Tomtom GO 300 GPS Receiver

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TOMTOM GO 300 THe LCD screen won't light up.

My screen is extremely dim. I can barely see the image. I tried changing the brightness nothing happens. The image is the but unable to see without shining a light on it. Please help.

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Re: TOMTOM GO 300 THe LCD screen won't light up.

Screens that don't light up are usually caused by the bulb going ( called " The Backlight " ). Unfortunatly , on a TomTom it is intergral with the screen so cannot be replaced seperatly. You can only replace the whole screen. There are other possiblities for the screen not lighting such as the ribbon cable that goes to the screen might not be quite plugged in right or theres a break in that ribbon cable + other reasons that become less likely as we go down the list. A simple test with a miltimeter by someone with knowledge of tomtoms will prove or disprove the backlight working and you should then know where you stand. Good luck.

Posted on Jan 29, 2008

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hello Simon,

Yes your'e right, the screen does have a bulb. Its reffered to as the ' backlight ' and from what you describe unfortunatly is sounds like yours has gone.
This light is somewhat integral to the screen so its more reasonable to change the whole screen rather than just the light.
There are other possible causes for the light not to be on as special circuits are employed to light up the screen. If these circuits are damaged in your device then its unlikely it will be economical to repair them.
I do hope this helps you or at least helps you to decide how to procede.
Good luck

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You can find a replacement LCD screen for Tomtom go 300 here:

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"My tom tom wonts switch on. I have reset it and still it comes on with a boom boom noise and shows the 2 hands on the screen. It also shows the loading bar at the bottom, but then it just freezes and nothing happens. can anyone help please ASAP"

Sound as though your Map data card is corrupt. Remove the SD card and check it with your computer using a card reader. Backup the SD card onto your computer. You can run either chkdsk or go to the drive letter under 'My Computer' right click and select properties, then tools, then check now. You can also try starting the Tomtom with the SD card out of the unit. It should show a picture of the Tomtom with a 'X'. You can also try copying the data on the SD card to another SD card.

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