Crackly Calls and Battery Tips! A5/A6 rework. Corrected URL

Joel Newkirk freerunner at newkirk.us
Fri Dec 12 17:47:13 CET 2008


Quick question for Steve/Jeorg:

Would a 3528 package capacitor fit?  And if so, would Tantalum be suitable
instead of Ceramic?  My guy here says he'd chose tantalum for filter use
like this, and the cost difference is dramatic, though the size is larger
than the ceramic shown in the pdf.  (price diff:  Ceramic around $2 each
qty 100, tantalum around $0.25 each qty 100)  The resistors are $0.02 each
qty 100, so they're practically free.  

Ceramic:
http://mouser.com/Search/ProductDetail.aspx?qs=t7T%252bw6J1MVWG%252bwA9gt9uDg%3d%3d
Tantalum:
http://mouser.com/Search/ProductDetail.aspx?qs=N31o%252bt096gsr1Po3ON6skg%3d%3d

j

On Thu, 11 Dec 2008 22:44:30 -0500, Joel Newkirk <freerunner at newkirk.us>
wrote:
> I'm going to talk to the guys at work tomorrow and show them the rework
PDF
> - we are equipped to make this fix, could probably offer it inexpensively
> to those nearby (southeastern North Carolina) or those willing to ship.
> (among other things - like security systems and internet services - we
> repair handheld radios and wireless broadband networking gear, including
> replacing BGAs and more mundane SMD components)  I'm betting we have the
> resistors on hand, would probably need to order a hundred or so of the
> caps.  I'll post back here if the answer is positive.  We're located in
> Hamlet NC, near Ft Bragg, but we're gearing up to offer repairs
nationwide
> for specific wireless networking gear, so shipping and processing of
> customer repair items in/out is forthcoming anyway, this is just a
> different board with a much simpler fix to be performed, I'm just not
sure
> they'll be interested in offering it as inexpensively as I'd like.
> 
> j
> 
> On Thu, 11 Dec 2008 17:29:32 -0800, Steve Mosher <steve at openmoko.com>
> wrote:
>> If guys raise there hand to help others out I'll come up with a program
>> to help them out/ reward them.  If you are willing to raise your hand,
>> drop me a mail.
>> 
>> steve at openmoko.com
>> 
>> Sargun Dhillon wrote:
>>> Very cool.
>>> 
>>> Now, all the hardware hackers out there who want to make a buck to fix
>>> our Free runners, raise your hands.
>>> 
>>> On Wed, Dec 10, 2008 at 5:31 PM, Steve Mosher <steve at openmoko.com>
>> wrote:
>>>> Probably best to send the requests directly to Joerg.
>>>>
>>>> Vasco Névoa wrote:
>>>>> I'd really like pictures with better focus and a little more light...
>>>>> especially the last one, which is very blurred!
>>>>>
>>>>> Citando Steve Mosher <steve at openmoko.com>:
>>>>>
>>>>>> Sorry,
>>>>>>
>>>>>>    I pulled the old copy.  See below
>>>>>>
>>>>>>      SOP paper (draft3, 2008-12-10 19:00) placed here:
>>>>>>
>>>>>>
>>
>
http://people.openmoko.org/joerg/GSM_EMI_noise/big-C_rework_SOP__DRAFT3__.pdf
>>>>>>
>>>>>>
>>>>>> Please have a look and report on any mistakes or things that need
>>>>>> improvement.
>>>>>>
>>>>>> Thanks
>>>>>> jOERG
>>>>>>
>>>>>> Neil Jerram wrote:
>>>>>>> 2008/12/10 Steve Mosher <steve at openmoko.com>:
>>>>>>>> The DRAFT fix for the buzz problem is here:
>>>>>>>>
>>>>>>>> C&P of joerg's mail.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>
>
http://people.openmoko.org/joerg/GSM_EMI_noise/big-C_rework_SOP__DRAFT!!__.pdf
>>>>>>> I'm getting 404 for this URL.
>>>>>>>
>>>>>>>       Neil

-- 
Joel Newkirk
http://jthinks.com      (blog)
http://newkirk.us/om (FR stuff)





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