[Arm-netbook] Pictures of tracks under A10 chip

[Adrian Carter]

Its BGA, and at least on the Hackberry Boards - a Multi-Layer PCB with
about half the I/O in the inner layers... so features blind vias all over
the shop
So its a tad more on a lot of boards than just removing the A10... its
splitting the board layers too..

You can refer to my images here:
http://dl.miniand.com/adr1an/images/Hackberry-Doubleboard.jpg which might
help shed some light on.. the.. depth of the problem so to speak :)


On 27 November 2012 01:33, jm <joem at martindale-electric.co.uk> wrote:

> Hi,
>
> Does anyone have pictures of tracks under A10 chip
> (both sides) they could upload somewhere and point?
>
> I want to layout the A10 board. I've looked at photos
> of various boards and have a good idea where
> chips should go, but the tracking under the A10 is
> a mystery. If I get so see some working example,
> then I have best idea of what to be doing.
>
> I also note that at least one mboard for a tablet
> did not have many 0.1uF capacitors littered underneath the
> chip as is recommended. I suspect that either they made
> a mistake or the A10 only need one or two big tantalum
> to replace all the 0.1uF littered under the chip and still
> work very well.
>
> If you have duff broken board, you can put it into the
> gas oven, or place it on electric cooker, or better still,
> get an engineer to do it! and knock off
> the A10 to take some clear photos of the tracks under
> the A10 chip and upload it somewhere.
>
> Otherwise I have to sacrifice one of my working mk802 for the cause.
> I is sure you really really don't want me to do that do you? :-)
>
>
>
>
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