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Subject: RE: Plugged in Car-charger - smoke out of my box - no charging
From: Chris Weaver (cweaver_at_bellsouth.net)
Date: 2004-03-16


The ability of the charger to supply more current than required would not have caused the problem.

It is no different than plugging in a stereo to a wall outlet that is rated for 15A or 20A. That is the max current.

It seems you must have not had the correct voltage or polarity to cause those circuits to lose their magic smoke. Even being an EE I
have never had much luck getting smoke back into electronics to make them work that must be done at the factory for those discrete
components.

You will likely have to replace some parts to enable the charging circuit.

Does Archos offer a repair service? Is it a flat rate?
Surely it is less than the cost of replacing the unit....

-----Original Message-----
From: rockbox-bounces_at_cool.haxx.se [mailto:rockbox-bounces_at_cool.haxx.se] On Behalf Of blaou
Sent: Tuesday, March 16, 2004 3:47 PM
To: Rockbox development
Subject: Re: Plugged in Car-charger - smoke out of my box - no charging

I used the standard 9V Voltage. The Adapter is capable of 800mA, but the
Archos only need 500mA - could this be a problem?
Of course I unplugged the box. It's still booting up and playing - but I
cannot charge it anymore....
Finding an electronic engineer will be hard. And finding the broken part
probably even worse.....

On Tue, 16 Mar 2004 16:20:05 -0500
Fred Maxwell <rockbox_at_anti-spam.org> wrote:

> blaou wrote:
>
> > after I broke my old car-charger for my Archos Recorder, I bought a
> > new one with changeable voltage.
>
> So what voltage had you selected?
>
> > After I plugged it into my Archos, Smoke
> > came out of my recorder.
>
> That's never a good sign.
>
> > Now it is actually still working - but charging the batteries does
> > not work anymore.
>
> I hope that you have had enough sense to stop using the car adapter as
>
> it is obviously putting out too high a voltage.
>
> > Can this be fixed?
>
> Probably, provided the parts are available (which they probably are).
>
> > Is it this "soldering the charging circuit"-something
> > people talk about on this list? (I tried searching the Mail-Archive
> > but ended up with IRC-Logs....)
>
> Probably not.
>
> > Is there maybe a description for it or
> > do I have to bring it to some kind of mechanic?
>
> Mechanic? No. You need to find someone who services electronics,
> like an electronic engineer.
>
> Regards,
> Fred Maxwell
>
> _______________________________________________
> http://cool.haxx.se/mailman/listinfo/rockbox
>
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