Question about Tomtom GO 300 GPS Receiver

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Tomtom go 300 blown u24 25 and component B

Hi, do u know what the part next to 523 B240. Located next to the power jack socket socket. I has a Gold B and a gold line running across its width, on one side?

Could be a reverse polarity diode, not sure....If so do u have a part number?

Also, if u25 or u24 blows....do you have to change both of them?....or if one looks ok to change the fried one?

Thanks

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  • E61N
    E61N May 11, 2010

    I'm sorry, I don't know.... :-(

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  • 515 Answers

Sorry, don't know...

Posted on May 05, 2008

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Power supply is only 12months old very little use. Was working fine but one day failed to turn on..its not overloaded its rated way,way above what my system should need. Being an auto electrician I thought...


Hi
This resistor is for overload its like a protection unit your system may Overload but you need a multimeter to test the Diodes and you might find that one of them is short this can cause the resistor to blown
you can find this resistor in High Voltage circuits
hope it will help

ecrdn@yahoo.com

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TomTom Go, repair in progress so far U24 & U25


Hi Soz but I dont have the answer for you but was wondering if you could tell me what and where I could buy the U24 because I have A tomtom 300 where the U24 has fried and I cannot see the number on top.If you can tell me my email is david.pugh5@tiscali.co.uk.
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Jan 09, 2010 | Tomtom GO 300 GPS Receiver

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I turn on my tom tom go 700 and the screen appears with a picture of the tom tom in a green box and then it stops and i wont turn of


If your TomTom GO/ONE/RIDER is frozen, won’t turn on or does not behave as it should, it can be fixed by resetting or restarting your TomTom device.
A reset will not delete any data from your device, with the exception of SMS messages on TomTom GO500/700.
  1. Connect your GO/ONE/RIDER to the power charger. If you have a power charger, use it to power your TomTom GO/ONE/RIDER. If you do not have a power charger, make sure that the battery in your TomTom GO/ONE is fully charged.
    Note: You need to charge your GO/ONE for at least 2 hours using the 12-24V cigarette lighter adapter.
  2. Reset your GO/ONE/RIDER. To reset the unit, you simply have to push a straightened paper clip (or something similar) into the RESET hole on the device.
    • On TomTom GO 910/710/510, the RESET hole is located on the bottom of the device.
      tomtomgox10.jpg
    • On TomTom GO 700/500/300, the RESET hole is located on the bottom of the device with the word RESET right next to it.
      tomtomgox00.jpg
    • On TomTom ONE, the RESET hole is located on the bottom of the device, with the word RESET right next to it (just below the SD card slot).
      tomtomone.jpg
    • On TomTom RIDER, the RESET hole is on the bottom of the device, behind the SD card door. When opening the SD card door you will see the RESET hole on the left, right underneath the SD card slot.
      tomtomrider.jpg
  3. Your TomTom GO/ONE/RIDER is now reset. Finally, press and hold the power button for 2 seconds.

Dec 16, 2009 | Tomtom GO 700 GPS Receiver

2 Answers

Tomtom fuses


Take both the charger (which should have a output rating on it) and the blown fuses down to Radio Shack, Jack. They'll help you out.

May 30, 2009 | Tomtom ONE XL GPS

1 Answer

Part Number and shop for U24 / U25 of a TomTom GO 300


U24 is TPS62000 and U25 is LTC1733EMSE . You don't say where in the world you are ? .....so I cannot advise you on where in your country to obtain those parts. They are available from MOST electronics compenent supplyers.
Its almost certain BOTH of those IC's will be blown even if one of them still looks ok.

Sep 13, 2008 | Tomtom GO 300 GPS Receiver

1 Answer

Tom Tom 700 will not turn on.


Take a look inside your tomtom go . The photo's uploaded are of the GO and Go 300 / 500 / 700 10676aa.jpgseries so yours might not look exactly the same but will be similar to these. SEE PHOTO of the IC's highlighted RED. U24 is on the same side of the circuit board as the card reader. U25 is on the same side of the board as the power socket. These are the 2 chips / IC's that will be blown if reversed supply or more than about 6 volts has been applied. The blown components are usually blown due to attaching the WRONG charger or a faulty charger. ( the tomtom cigarette lighter leads often go faulty ) These IC's are very very small ( just 3.5mm across ) and the 10 pins ( 5 on each side ) are even smaller and very close together therefore normal soldering ability will not allow a novice to replace them. Special soldering irons are needed , magnifying glass or special microscope for electronics + a steady hand and good light. Its highly unlikely that a home repair is possible. Besides that , even engineers with years of soldering experience have great difficulty replacing these components and it often takes me 30 minutes just to replace one of these IC's and I have a steady hand. Most normal electronics repair companys cannot repair this type of component as they will normally deal with bigger things. So unfortunatly, your "corner of the street" TV repair shop won't be able to fix it for ya either. As far as I know TomTom don't repair these IC's either as its too fiddly and time consuming and for them not worth the effort. Your only hope is one of the repair people offering this service on online . Try a look on ebay under "faulty tomtom" .

Aug 26, 2008 | Tomtom GO 700 GPS Receiver

1 Answer

Green Light / Dead Tomtom - Please help with component id


that diode is a reverse polarity protection diode. An 1N414 will do ( available for very very little from almost ALL electronic component suppliers.) If there is NOTHING ELSE WRONG then the tomtom will still work without this diode. Its not needed in normal operation anyway. All it does is cause the fuse to blow in the cigarette lighter plug if the polarity is accidently reversed. Therefore , with a correct supply , it does nothing !

Aug 18, 2008 | Tomtom GO 300 GPS Receiver

2 Answers

Tomtom go 300 u24 u25 and B


Sorry , we need more info on position of what you call 'B' ? Which component are you reffering to ? I don't know component "B" .

Apr 25, 2008 | Tomtom GO 300 GPS Receiver

2 Answers

Tomtom go 300


before you start take out sd card. 1 turn tomtom upside down. 2 see reset button? 3 use paper clip to press (press for 15secs) 4 now turn on tomtom (hold power button for approx 5secs. 5 re insert sd card. after a few minutes you should have signal. hope this solves your problem.

Mar 19, 2008 | Tomtom GO 300 GPS Receiver

1 Answer

Tomtom go 300


Its likely to have blown IC's 24 , 25 and also sometimes possibly 26. You might also have blown the reverse polarity protection diode. Tomtoms damaged this way require a specialist repairer as the solder joint are much too small for the average electronics guy to solder. If you have no knowledge of this type of soldering or if you have not got the special soldering equipment then it will have to go to someone who has repaired these before or go back to TomTom for repair.

Jan 20, 2008 | Tomtom GO 300 GPS Receiver

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