I cannot use my Garmin Nuvi when it's charging

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moeyHC
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Re: I cannot use my Garmin Nuvi when it's charging

#21 Post by moeyHC » Tue Oct 07, 2008 3:18 pm

mleong wrote:You can probably "take out" the center 2 pins since it is the data pins. The side 2 pins is the power pins

reference: http://www.frontx.com/cpx108_2.html
The mini 5 pins/4 pins USB connector are molded to its cable and I wonder how the pins can be removed safely. Does removing the two pins prevent the Nuvi from going into the Data mode? Please enlighten?

I have design a USB charger to charge my kids iPods and it charges my Nuvi 300 with no problem too. Just that it will initialize itself into the Data mode. The plug and unplug will bring it back to life.... cheers!
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kekhoo
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Re: I cannot use my Garmin Nuvi when it's charging

#22 Post by kekhoo » Tue Oct 07, 2008 6:27 pm

mleong wrote:
You can probably "take out" the center 2 pins since it is the data pins. The side 2 pins is the power pins

reference: http://www.frontx.com/cpx108_2.html

Use black and green wires should be ok, Tested on my Nuvi 5000 no problem.

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Re: I cannot use my Garmin Nuvi when it's charging

#23 Post by PalmoAnest » Tue Oct 07, 2008 9:37 pm

Seems like you r not alone, bro dyp.
I've had the same problem posted in 255w thread:
report.php?f=9&p=109970

Allow me to ask a question, what car r u driving bro dyp? I suspect this is due to the voltage generated by ur car. I notice this problm when using the nuvi in my European car but not in my father's Jap car. Is it possible?

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moeyHC
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Re: I cannot use my Garmin Nuvi when it's charging

#24 Post by moeyHC » Wed Oct 08, 2008 9:25 am

Type of cars doesn't matter as long as the input voltage to the charger is 12v with the correct polarity at the socket. Our car charger is set to charge at 14.4V max and the switching regulator in the USB charge (typically max input voltage is 30V) will regulate its output to 5V. Hence, no matter what make of cars you drive the charger output will be 5V. Hope this helps.... cheers!
Last edited by moeyHC on Wed Oct 08, 2008 10:04 am, edited 1 time in total.
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Re: I cannot use my Garmin Nuvi when it's charging

#25 Post by PalmoAnest » Wed Oct 08, 2008 10:03 am

Thanx bro moeyHC, I never had chance to re-test this observation coz the 255 had been stolen.

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Re: I cannot use my Garmin Nuvi when it's charging

#26 Post by mleong » Wed Oct 08, 2008 12:30 pm

moeyHC wrote:
The mini 5 pins/4 pins USB connector are molded to its cable and I wonder how the pins can be removed safely. Does removing the two pins prevent the Nuvi from going into the Data mode? Please enlighten?

I have design a USB charger to charge my kids iPods and it charges my Nuvi 300 with no problem too. Just that it will initialize itself into the Data mode. The plug and unplug will bring it back to life.... cheers!
I had tried this: I cut of one end of the USB, strip the 2 wires, connect the other end to the PC, then use a volt meter and test out which is +ve and -ve, then I use a tape to tape the 2 wires to a handphone battery and let it charge. Well it works. Based on this, it should works.

Anyway, I will try it out first("take out" the 2 pins from the USB)

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Re: I cannot use my Garmin Nuvi when it's charging

#27 Post by mleong » Wed Oct 08, 2008 5:37 pm

Tried the "remove pin" step. Did not work. I did some research a,d instead of 'remove' the pins, you need to short it(ie connect it, pin 2 and 3).

The pull out - push in trick work better.

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moeyHC
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Re: I cannot use my Garmin Nuvi when it's charging

#28 Post by moeyHC » Fri Oct 10, 2008 11:48 am

The pull high for the TxRx pins doesn't work because the iPod USB charger I made uses this configuration and my Nuvi 300 will go into Data mode. I don't know if the 200 series works the same.
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Re: I cannot use my Garmin Nuvi when it's charging

#29 Post by genekl » Tue Nov 25, 2008 12:09 am

My Nuvi 200 worked fine in US cars but no charging in Malaysian Protons. Wonder if cigarette lighter faulty in these cars? I haven't had it checked at service centre yet.

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Re: I cannot use my Garmin Nuvi when it's charging

#30 Post by dvpro » Tue Nov 25, 2008 12:36 am

genekl wrote:...
Wonder if cigarette lighter faulty in these cars? I haven't had it checked at service centre yet.
Try to light a cigarette lah... :mrgreen:
I take everything in moderation, including moderation.

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