Re: [Paparazzi-devel] Re: Blown power supply?

[Jan Nowack]

Hi Jesper, hi David,
thanks for the fast response and tips. We will order a new power
supply and then trying to change the old one. I will try to take some
photos from the process and put them in the Wiki. Unfortunately, as
you said Jesper, it seems that more people becomming trouble with this
part.

Greetings

Jan

2009/4/14 David Buzz Carlson <address@hidden>:
> Seems the best way is to grind off the legs with a dremel and then remove
> them with a normal soldering iron.
>
> Buzz
>
> Jan Nowack wrote:
>>
>> Hi Jesper, hi all,
>> unfortunately we also have a blown power supply. And this happend on
>> our first flight :(.
>> Do you have any tips how to change, especially remove the
>> PTH08080WAH-Module from the tiny board? Do you have used any "special
>> equipment" for this?
>>
>> Greetings
>>
>> Jan
>>
>>
>> 2009/3/22 Jesper Kempe <address@hidden>:
>>
>>>
>>> Hi again
>>>
>>> For information I can say that it looks like it was the power supply that
>>> was broken. I managed to remove it  from the Tiny board and when I hook
>>> up
>>> +5V to the output pin of the power supply module (pin 3 on the
>>> PTH08080WAH)
>>> the Tiny comes to life and the led starts to blink. I even got a GPS fix
>>> inside my workshop.
>>>
>>> Now I only need to get a new module and hope that it was a bad module
>>> that
>>> broke and that it has nothing to do with my autopilot.
>>>
>>> //Jesper
>>>
>>> 2009/3/22 Jesper Kempe <address@hidden>
>>>
>>>>
>>>> Hi All
>>>>
>>>> Yesterday I finally managed to fix my airplane after my last incident
>>>> and
>>>> began to reinstall the Tiny.
>>>> When everything was connected and I had wrapped the board in some foam I
>>>> thought I should test everything before the final installation. I had
>>>> everything tested OK outside of the plane the day before. But this time
>>>> when
>>>> I connected the battery a very bad sound was heard from the Tiny. It
>>>> sounded
>>>> like a very bad short cut!
>>>> I immediately disconnected the battery and tried to see if anything was
>>>> burnt but I cannot find anything that looks broken. I tried one more
>>>> time to
>>>> connect the battery but this time nothing happens. The thing is dead!
>>>> :-(
>>>>
>>>> After I while I decide to try to locate the fault. I think it looks now
>>>> like the power supply, the PTH08080WAH module, is broken. When there is
>>>> power connected to it it does not give me +5V on the output pin. I
>>>> should be
>>>> able to just measure on the output pin against ground, right?
>>>>
>>>> The question for you guys now is if it possible to change that module?
>>>> Of course it is possible but I mean more if you think it possible that
>>>> the
>>>> rest of Tiny has survived and that the module is the only thing broken?
>>>> Is
>>>> it worth a try?
>>>>
>>>>
>>>> Regards
>>>>
>>>> Jesper
>>>> Sweden
>>>> Still on the ground...
>>>>
>>>
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>>>
>>>
>>>
>>
>>
>>
>>
>
>
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