Question about Tomtom GO 300 GPS Receiver

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Tom Tom 300 Green power light comes on but no screen display

When i connect my tom tom the green light comes on, it wont power up and theres no display on the screen its like its totally dead?? What would cause this?

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Re: Tom Tom 300 Green power light comes on but no screen...

Try resetting it, via the 'reset' hole.

failing that...

Posted on Dec 15, 2007

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Re: Tom Tom 300 Green power light comes on but no screen...

Hello, replays those 2 smd ic's and the tomtom will work again!!

best regards
alex from holland

U25 : LTC3411 ( +/- 6 Euro)
U24 : TPS62000 ( +/- 6 Euro)

Posted on Jan 20, 2008

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if all you are getting is a green light and no screen coming on, you have blown one of two chips inside it by using a dodgy car charger

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The green power light on my tomtom XL is on and is fully charged however the screen wont turn on and remains black, it also makes no noise.

First you need to check if the battery is okay, try it on another tom tom gps receiver, if it is working and the screen wont turn on, then it means there is a hardware problem, probably the flexi ribbon that is connected to the screen is either loose or bad, this will require you to disassemble the tom tom and check for the flexi ribbon that connects to the screen, then you resit it or change the ribbon, that should do the job.
You can also try to reset the tom tom first before disassembling it. By pressing and holding the power on/off button for about 15 seconds, if that does not do the job, then you can go ahead and disassemble the tom tom.
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Repair4GPS: How to Clean, Upgrade, Repair, Mod, Disassemble a GPS ...

see here

To only way you can fix it is taking apart the Tom Tom, checking if the flat ribbon cable and connector to the screen are well in place and eventually replace the display ($80 on Ebay).
Unfortunately this will invalidate the guaranty, and you risk to damage your GPS if you are not a really experienced DIYer. Tom Tom offer one year full guaranty on all their receivers.
Contact Tom Tom and get it repaired:
Support URL:
Support Phone Number: 978.287.9555
Support Email Address:

Hope this may help;


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If the unit is still under warranty, send it back to Tomtom. Even if the unit is no longer under warranty, complain to Tomtom. There is a problem with the CLA (cigarette lighter adapter). It can cause internal damages to your Tomtom. What happens is that there are three wires in the CLA along with a voltage stepdown circuit board. The wire are +, -, and a signal wire. If the signal wire get disconnect the voltage could spike up to 12vdc. The unit is designed for only 5vdc.

If the unit is out of warranty then try the following website for repairs. They can fix the two chips which usually blows.

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