Testing a TomTom N14644 unit. What adapters do I need?
  • muckmail
    Posts: 13
    I have a used TomTom N14644 unit. I only have the unit and a USB cable
    that looks like it a USB computer port. What do I need to check this unit
    out? Could I connect the TOM TOM to a car charger with a USB port with my cord. Maybe I could use a car charge (with a USB port) that can be purchased at a local Auto Store or do I need to buy a TOM TOM car adapter. If so is there a good place to get one.
    Thank you,
  • dhn
    Posts: 3,940
    For starters, there is no model by that name. Put the first 2 characters of the serial number of your unit in the following link to find out the precise TT model you have:
    http://us.support.tomtom.com/app/answers/detail/a_id/9521/c/2355

    TomTom car chargers are meant to attach to the port on the unit but until it is established which model you have, hold off on any purchase since the older models used a mini connector while the newer ones have a micro connector.
  • muckmail
    Posts: 13
    Is the serial number the number in the bar code?
    It has a RU as the first 2 characters.
    The webpage find feature gives
    XL IQ Routes TTS* / 340S - 2GB for "RU"
    So does this information help?
  • dhn
    Posts: 3,940
    Yep, it does.

    That model uses a min usb connector, not a micro connector. There are generic car chargers in the Big Box stores that should work. You are looking for one which puts out at least 1.0A, maybe 1.2 if you can find one.
  • muckmail
    Posts: 13
    So can I plug the unit into a computer port to see if it works or should
    use a car adapter mentioned above? It looks like it has a botten on top of the unit. I guess that turns the unit on? When I push the button nothing
    happens so maybe the unit is dead? Does this unit use a battery or does need to be plugged into the car adapter?


    Is this unit upgradeable or worth messing with if it works?


    Thank you,
  • dhn
    Posts: 3,940
    The battery may indeed be flat (dead). It should charge either by connecting to a computer or a car charger. If you wish to connect to a computer, keep it connected for a good 2-3 hours to see if the battery can get a decent charge.
  • muckmail
    Posts: 13
    I did get a startup screen when it is connected to the computer.
    but I did not know what to do when the unit gave the start up page.

    I am going to let it charge up on the computer USB Port.
    Is there a manual for this Tom Tom. Seemed like the webpage
    gave had stange mode number of "XL IQ Routes TTS* / 340S - 2GB for "RU" barcode key letters.

    Thank you,
  • muckmail
    Posts: 13
    A startup screen came up once yesterday but it did not come up today.
    I am going to put it back on the computer USB port and see what
    happens latter on. Otherwise any other suggestions.
    Thank you,
  • muckmail
    Posts: 13
    I put it on the computer USB port for all night and it did not pull up
    a screen. I guess I can consider it to be dead? Maybe it is the
    battery? Anything else I might conder doing to it?
    Thank you,
  • dhn
    Posts: 3,940
    Did the power light appear while itr was connected to the computer?
  • muckmail
    Posts: 13
    There is a little green light on the bottem of the unit that apprears
    when the unit is plugged into the computer USB. Does that indicate
    anything?
    Thank you,
  • dhn
    Posts: 3,940
    It indicates power is getting to the unit, not necessarily that the unit is actually being charged, though.

    After you disconnected the unit from the computer and turned it on, what exactly do you see?
  • muckmail
    Posts: 13
    After I unplug the unit and push the button on to I see nothing.
    No light, No screen.
    Thank you,
  • dhn
    Posts: 3,940
    If you hold the power button about 20 seconds, do you get a reboot with a drum sound, by any chance? If not, it may be a hardware failure and there isn't much you can do, I'm afraid.
  • muckmail
    Posts: 13
    No drum sounds or anything after 20 sec. Could it be the battery?
    Thank you,
  • dhn
    Posts: 3,940
    It could very well be.......
  • muckmail
    Posts: 13
    Ok, I guess I could take it apart a look see if I can get to the battery?
    Maybe see whats on the inside. Doing nothing is surely no gain so why not? Maybe there is a proceedure for that using common tools?
    Maybe I could look at some test points with a meter if I could
    get it open?

    Thank you,
  • muckmail
    Posts: 13
    This Tom Tom came up with a good screen for the second time.
    I guess works on Friday mornings. Ha Ha.
    The only thing I have done different is to connect it to a power AC adapter
    that has a USB power port. This power adapter is to a moble power
    kit that charges a moble solar power battery unit.

    Could my computer USB port be too weak to recharge/power
    up the Tom Tom??

    Thank you,
  • dhn
    Posts: 3,940
    A computer's port normally pumps out about .5A power (less if you are using a port in a usb hub ---- don't do that).

    An AC adapter or car charger yields about 1.0 to 1.5A power.
  • muckmail
    Posts: 13
    This little AC adapter has an output of 5.0V, 800ma.

    What voltage & ma is best for this Tom Tom?

    When I turn it on it was connected to the adapter.
    Should the Tom Tom be able to come on with anything
    connected.

    I think I will keep it on this adpater for a few hours and see
    what happens.

    Thank you,
  • dhn
    Posts: 3,940
    With enough power, yes the unit should turn on. I am not an expert when it comes to all that power stuff..... 😞ry:

    I do know the unit needs enough power to both power up AND perform all the functionality needed for the device.

    For example, devices with LIVE functionality cause a drain on the battery. so do those with Bluetooth enabled.
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