[kwlug-disc] Where to fix an Acer A500 tablet?

[Khalid Baheyeldin]

Thanks for all the hints everyone.

Regarding other soldering, ...etc.
I am not handy with soldering at all, more so for  tiny electronics like that.
The only issue with this tablet is "media/data errors", so that points
to the flash memory with high certainty. Reflowing that chip only is
worth the effort though. If it works, then all is well (for a while at
least). If not, then it goes to Kijiji or eBay for parts ...

On Mon, Dec 8, 2014 at 1:38 PM, John Johnson <jvj at golden.net> wrote:
> On 2014-12-06 20:30, Khalid Baheyeldin wrote:
>>
>> Seems some people are able to identify the problem (loose connection,
>> ...etc.), and fixing it by taking out the mother board and baking it
>> in the oven, or using a heat gun (don't know what that is).
>>
>
>
> On 2014-12-08 11:49, Khalid Baheyeldin wrote:
>>
>> I was able to open the case and get the motherboard out. So perhaps I
>> can do the reflow with the help of the couple of Youtube videos that I
>> watched about this.
>>
>
> Now that the motherboard is out you can examine the same for solder flaws
> (flaws not flows), e.g. voids, cold solder joints, etc.
> [Perhaps Charles at CR can help you with this.]
>
> When examining the motherboard, use a strong light and a magnifying glass.
> Pay particular attention to the joints around large components, like
> connectors (see above).
>
> You may find a flaw that can be addressed with soldering iron.
>
> Potential problems are many. As are causes for the same.
> And reflow using an oven or heat gun will only address a small subset of
> these causes.
>
> If you decide to venture into the reflow process ....
>
> Heat may cause the solder holding smaller components to flow before others.
> Be careful not to move or jar the motherboard when it has been heated lest
> parts may be moved.
>
> JohnJ
>
>
>
>
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