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

[John Johnson]

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