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Subject: Re: JBS: DC- regulator blown second time; what's the cause?

Re: JBS: DC- regulator blown second time; what's the cause?

From: BlueChip <cs_bluechip_at_webtribe.net>
Date: 2005-04-04

<snigger>

fw little iw ...my wild guess is that when the circuit blew, you _damaged_
something 'near-by' (ie a transistor/resistor) This may be causing just
enough overload to the main device to trigger it's repeated demise ...I am
sure that the right amount of work may track down the fault - but in honesy
*I* would give up about here or you could be chasing dead components around
for ever on a cheap-to-replace device.

Replacement? ebay and another little mp3-only archos unit ...at least until
Rockbox is dusted off for the new super colour all-codec units in the pipeline.

Sorry, not words of encouragement from me :( ...but, as is my way, the
truth as I believe it to be.

BC

At 16:01 03/04/2005, you wrote:
>Its next to the carburetor.
>
>On Sun, 03 Apr 2005 12:57:18 +0100, Markus Grebenstein
><sassodimorte@gmx.de> wrote:
>
>>No. Can you tell me where it is located or how to find it?
>>
>>Thanks a lot!
>>
>>
>>On Sun, 03 Apr 2005 01:35:36 +0100
>>"nobby nobbs" <nobbynobbs@gmail.com> wrote:
>>
>>>have you checked the alternator? :P
>>>
>>>On Sun, 03 Apr 2005 01:23:01 +0100, Markus Grebenstein
>>><sassodimorte@gmx.de> wrote:
>>>
>>> > Hi guys,
>>> >
>>> > my JBS 20 is gone second time!
>>> >
>>> > Again the DC- regulator of the charging circuit is blown just one weak
>>> > after replacement!
>>> >
>>> > Now I'm wondering if anybody has an idea what might be wrong.
>>> >
>>> > I' didn't change polarity etc. on the DC- Adapter or anything else.
>>> >
>>> > Can any problem with the (original) Harddisk cause this problem?
>>> >
>>> > Thanks a lot in advance for your advice!
>>> >
>>> > Cheers,
>>> >
>>> > Markus
>>> > _______________________________________________
>>> > http://cool.haxx.se/mailman/listinfo/rockbox
>>>
>>>
>>>
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>
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Received on Mon Apr 4 05:38:45 2005


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