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Nigel-DV Occasional Visitor
Joined: Jan 07, 2006 Posts: 29
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Posted: Sat Jan 21, 2006 8:27 pm Post subject: Tomtom Go500 just died on my?? |
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Has anyone else experienced this?
I bought a Tomtom Go 500 from Carphone warehouse in UK just 2 weeks ago. I used it once on a 2 hour round trip, fine, then after a 12 day break, I used it again on a 4 hour round trip.
This is what went wrong. I was using the built in battery; then suddently the battery low warning indicater started to allert me that the battery was running low. I pulled over, then plugged in the ciggerette power chord and continued to drive for another 20 minutes.
I reached my destination, then after an hour in my friends hous I returned to my car, got Tomtom out of glove compartment, plugged ciggy power chord in and turned on my Tomtom, fault; the green power light came on, but that's it, the screen was dead; nothing.
I turned it off, green light goes off, then turned it on again, nothing, just green light and dead screen.
I tried powering it up with no power chord plugged in (I figued the built in battery must be somewhat charged as I'd been using it on power chord for 30 minutes) and tried powering it up, nothing, not even green light.
Anyway, it was dead so I returned it to carphone warehouse and got a refund. Why a refund, because the price had just dropped by £20 so I got a refund, walked around the corner to another brance of Carphone warehouse and bought a new one from scratch.
Anyway, my brand new one seems fine so far, after 5 minutes use anyway. But I'm concerned as to why the last one died on me.
Could it be something to do with the way/order in which I plug in the ciggerete charger and power up the Tomtom, could it have blown something inside due to charge comming from the car battery?
Very concerned as when this happened I was 80 miles from home with no AtoZ in the car (there is now).
Any advice on what could have caused this so I can prevent it happening in future?
I just noticed on the new one, there is a 'reset' button on the base. I never knew it was there, do you think if I had pressed this on my old dead one, it would have fixed it? what does this button do?
Thanks guys. |
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sgould Frequent Visitor
Joined: Oct 05, 2004 Posts: 1320
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Posted: Sat Jan 21, 2006 8:48 pm Post subject: |
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There's always been a reset button on the GO. ;)
It would probably have got it going again. It just reboots the system, nothing on the SD card is lost. _________________ TTGO 700 (dead)
iPhone 3GS + TT holder
iPhone 5 (hers!)
Western Europe Map
Eastern Europe Map
Kenwood DNX-4210DAB with Garmin maps |
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Oldboy Pocket GPS Moderator
Joined: Dec 08, 2004 Posts: 10642 Location: Suffolk, UK
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Posted: Sat Jan 21, 2006 8:51 pm Post subject: |
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You can also force a re-boot by taking the SD Card out, and re-inserting, before switching on again. _________________ Richard
TT 910 V7.903: Europe Map v1045
TT Via 135 App 12.075: Europe Map v1120 |
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Nigel-DV Occasional Visitor
Joined: Jan 07, 2006 Posts: 29
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Posted: Sat Jan 21, 2006 9:23 pm Post subject: |
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So, would it have been likely that the Tomtom blew an internal fews, or burned out the circuit board because of the ciggerett charger off the car battery? |
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Andy_P Pocket GPS Moderator
Joined: Jun 04, 2005 Posts: 19991 Location: West and Southwest London
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Posted: Sun Jan 22, 2006 1:29 am Post subject: |
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No. The symptoms you describe are exactly what I'd expect if it just needed a reset.
Quote: | I used it once on a 2 hour round trip, fine, then after a 12 day break, I used it again on a 4 hour round trip.
This is what went wrong. I was using the built in battery; then suddently the battery low warning indicater started to allert me that the battery was running low. |
If that was all on the internal battery, no wonder! Six hours active use plus twelve days standby (it's never "off", just resting) on a battery rated for 5 hours use, its doing very well!
Quote: | I turned it off, green light goes off, then turned it on again, nothing, just green light and dead screen. |
If it has been left on until it discharged completely, its quite possible it would need a reset.
Quote: | I tried powering it up with no power chord plugged in (I figued the built in battery must be somewhat charged as I'd been using it on power chord for 30 minutes) and tried powering it up, nothing, not even green light. |
Nothing has changed - it still needs that reset. The green light indicates "charging", not "on".
So no charger, no light.
Quote: | So, would it have been likely that the Tomtom blew an internal fews, or burned out the circuit board because of the ciggerett charger off the car battery? |
No, it needed a reset.
By the way, you'll need a straightened out paper-clip. |
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Eldar Pocket GPS Moderator
Joined: Sep 24, 2004 Posts: 1294 Location: London
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Posted: Sun Jan 22, 2006 4:31 am Post subject: |
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Andy_P2002 wrote: |
By the way, you'll need a straightened out paper-clip. |
I believe there is a deluxe reset tool for sale at about £15 |
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gingernut777 Frequent Visitor
Joined: Nov 03, 2004 Posts: 251 Location: Earth where else
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Posted: Sun Jan 22, 2006 8:34 am Post subject: |
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Eldar wrote: |
I believe there is a deluxe reset tool |
I think i found it,
Only use when necessary.
http://www.rollag.com/pages/Steam_hammer_jpg.htm
_________________ Using an A to Z
Sextant & Compass |
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Nigel-DV Occasional Visitor
Joined: Jan 07, 2006 Posts: 29
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Posted: Sun Jan 22, 2006 11:59 am Post subject: |
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Andy_P2002 wrote: | No. The symptoms you describe are exactly what I'd expect if it just needed a reset.
Quote: | I used it once on a 2 hour round trip, fine, then after a 12 day break, I used it again on a 4 hour round trip.
This is what went wrong. I was using the built in battery; then suddently the battery low warning indicater started to allert me that the battery was running low. |
If that was all on the internal battery, no wonder! Six hours active use plus twelve days standby (it's never "off", just resting) on a battery rated for 5 hours use, its doing very well! |
No, it needed a reset.
By the way, you'll need a straightened out paper-clip. [/quote]
No, that was not all on battery, only part, the latter half was on power, so there was plenty of charge left in the device as it had been used on charger lead for the last 34 minutes of the journey. |
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zardoz Lifetime Member
Joined: Jan 03, 2006 Posts: 76
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Posted: Mon Jan 23, 2006 11:25 am Post subject: |
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How do these symptoms differ from those when the car charger is faulty and delivers over-voltage to the unit and fries it? |
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Eldar Pocket GPS Moderator
Joined: Sep 24, 2004 Posts: 1294 Location: London
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Posted: Mon Jan 23, 2006 11:32 am Post subject: |
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It doesn't happen to 300/500/700 series, otherwise they don't differ. |
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zardoz Lifetime Member
Joined: Jan 03, 2006 Posts: 76
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Posted: Mon Jan 23, 2006 11:03 pm Post subject: |
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@Eldar
Please could you give me the technical reasoning behind your statement?
Are the TTG x00 series internally protected or does the "new" charger design not use a sense wire?
Thanks. |
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Eldar Pocket GPS Moderator
Joined: Sep 24, 2004 Posts: 1294 Location: London
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Posted: Tue Jan 24, 2006 1:04 am Post subject: |
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The only reasons for the original charger breaking down was crap workmanship and schematics. Both have since been improved I haven't seen a single 300/500/700 series unit burnt by the original TomTom charger for this series. |
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zardoz Lifetime Member
Joined: Jan 03, 2006 Posts: 76
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Posted: Tue Jan 24, 2006 11:03 am Post subject: |
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Many thanks for the response. Basically it means, don't attempt to use an old GO charger on the new series because there is still the risk of destruction then. Now I know what to steer clear of when looking at junk sales. |
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Eldar Pocket GPS Moderator
Joined: Sep 24, 2004 Posts: 1294 Location: London
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Posted: Tue Jan 24, 2006 11:18 am Post subject: |
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indeed, I'm seeing more and more of the old GO units destoyed by the charger. |
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Oldboy Pocket GPS Moderator
Joined: Dec 08, 2004 Posts: 10642 Location: Suffolk, UK
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Posted: Tue Jan 24, 2006 8:00 pm Post subject: |
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The later Classic chargers were OK. They were marked 24/12V DC.
The early ones were 12V DC. _________________ Richard
TT 910 V7.903: Europe Map v1045
TT Via 135 App 12.075: Europe Map v1120 |
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