Tom Tom VIA 620 cuts out after a few minutes.

Discussion in 'Technical Support' started by rodelgk, Oct 19, 2017.

  1. rodelgk

    rodelgk

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    TomTom Model(s):
    VIA 620
    It cuts out and goes to the main menu, when I press Done again it again runs for a few minutes. The battery seems OK as when fully charged I put it on a very long demo run and kept it running for a long time before the battery discharged.
     
    rodelgk, Oct 19, 2017
    #1
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  2. rodelgk

    dhn Moderator

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    TomTom Model(s):
    720; 1535 LIVE; Via 1605; Go 50; Go 520
    Are you charging from a usb port in your car? If so, don't. Use the car charger supplied with the model. A usb port provides insufficient power (.5A) to run the device properly.
     
    dhn, Oct 19, 2017
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  3. rodelgk

    rodelgk

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    TomTom Model(s):
    VIA 620
    No I use the charger from the Tom Tom
     
    rodelgk, Oct 19, 2017
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  4. rodelgk

    dhn Moderator

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    TomTom Model(s):
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    Try a drum reset on the unit by holding the power button about 20 seconds till you hear the drum sounds.
     
    dhn, Oct 19, 2017
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  5. rodelgk

    rodelgk

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    TomTom Model(s):
    VIA 620
    Thanks dhn, I did this as well as a recommendation from Canderson who replied to oldjono who had a similar problem, shown below. I went on a 90 minute trip and it didn't cut out so hopefully between the two of you my TT is fixed.
    Canderson's reply to oldjono
    "OK - that's easier to deal with!
    It sounds like you are seeing 'phantom' presses on the screen caused by the bezel coming into contact with the screen. The 620 is has resistive screen (one of the brightest and clearest, in my opinion!), so any pressure around the outside edges could set it off.
    Take the corner of a business card or similar thin item and run it around between the bezel and the glass in an attempt to remove any crud that might have accumulated between them. Let us know if that gives you any relief."
     
    rodelgk, Oct 20, 2017
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  6. rodelgk

    rodelgk

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    TomTom Model(s):
    VIA 620
    I celebrated a bit soon, when I went out today it displayed the main menu then cycled through other screens while still giving the verbal instructions, this is really not much use. Any ideas?
     
    rodelgk, Oct 21, 2017
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  7. rodelgk

    canderson Moderator

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    TomTom Model(s):
    GO720 GO 740 GO1535 GO1605 VIA1535 GO 600
    Your Aus Via 620 is what we called the Via 1605 here in NAM. I haven't experienced your problem on my own 1605 (yet), but phantom presses are almost always related to something causing pressure between bezel and screen around the edges. That can either be caused by crud between the two or temperature changes that are causing the bezel to change shape a bit. You're beginning to move into the warmer part of the season there, and that seems to be what sets it off.

    I'd be curious -- if you leave the device in the house (at reasonable ambient temp and out of the sun!) for a few hours, does the device behave normally?

    If it only misbehaves when mounted to the windscreen when there's some sun on it, it could be a bezel warp problem. Bit of a pain to fix those, but possible.
     
    canderson, Oct 22, 2017
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  8. rodelgk

    rodelgk

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    TomTom Model(s):
    VIA 620
    I had it in the house overnight, then put it in the car this morning and it went to menu within about 3 minutes.
     
    rodelgk, Oct 23, 2017
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  9. rodelgk

    canderson Moderator

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    What I'm hoping you will do is test it IN the house for a while before taking it to the vehicle environment to see if it behaves correctly in the house over a reasonable period of time..Trying to eliminate your vehicle environment from the list of variables here.
    What is your current daily temperature there, and is your unit by chance in the path of a heat vent?
     
    canderson, Oct 23, 2017
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  10. rodelgk

    rodelgk

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    TomTom Model(s):
    VIA 620
    I left it on my desk in the house, over a number of tests it cut out between a few minutes and over an hour. the temperature is about 22 Deg C.
     
    rodelgk, Oct 25, 2017
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  11. rodelgk

    canderson Moderator

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    OK. Then we're not talking about any sort of ambient temperature or sun problem in the car. Any temperature change is strictly a function of the operation of the unit -- so it's really sensitive.
    The only potential DIY solution is going to involve taking the unit apart to get under the bezel, and that's not a trivial task for most people.
     
    canderson, Oct 25, 2017
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  12. rodelgk

    rodelgk

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    TomTom Model(s):
    VIA 620
    I removed the bezel and cleaned up around the screen. It worked lying in the house but when I went out with it in the car it still cut out, I think due to the vibration in the car. Various attempts to tape the screen to the body of the Tom Tom were unsuccessful until I attached it with 2 layers of double sided tape. It also seemed to need the drum reset after it had cut out. It has been working well for the past week so I hope it is OK now. Will replace the bezel in a few weeks time if all is still well. Thanks for your help
     
    rodelgk, Nov 6, 2017
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  13. rodelgk

    canderson Moderator

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    When you replace the bezel, look carefully for any tight points where it may be in contact with the screen. A bit of emery cloth or an Xacto may be needed to relieve any pressure that you find..
     
    canderson, Nov 6, 2017
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