testing report (with hardware conclusion)

[Leonti Bielski]

Did you make tests with LM336 Joerg rework
http://lists.openmoko.org/nabble.html ?
If not - are they planned?
Leonti

On Fri, Nov 14, 2008 at 3:15 PM, Wendy <wendy_hung at openmoko.com> wrote:
> Hi,
>
> first of all let's welcome our new testing memember- Sushama Kailash, who came
> from India. We will have her self introduction later when she get Openmoko's
> email account.  Welcome on board, Sushama. :)
>
> Testing team this week is doing audio quality test with hardware engineers.
> The result here is QA team's point of view, not incloud hardware detail:
>
> About the audio of GTA02 we made a test to see if the A7 met the same stander
> as BlackBerry curve or A6 reowrk, hope this can help you to have a more clear
> picture to see what we need next.
>
> We used the Om2008 testing image which has additional AT commands
> enabled.
> * A7+capacitor+testing image 1
> * A7+capacitor+testing image 2
> * A7+capacitor+Factory image
> * A7 without capacitor+testing image
>
> Result:
> * A7+capacitor+testing image 1,2
>  - rarely have buzz
>  - clear voice
>  - overall experience is acceptable, second best to the A6 rework results
> from yesterday.
>
> * A7+capacitor+Factory image
>  - volume low
>  - loud noice almost cover my voice
>  - no buzz
>
> * A7 without capacitor+testing image
>  - have some buzz
>  - volume is normal
>  -  white noise is very obvious, overall experience not as good as with the
> added capacitor.
>
> QA's conclusion:
> A7 plus capacitor with Om2008 testing image install is good,  but it has
> noise (not too loud, but you can hear that), rarely has buzz and the vioce is
> clear.
>
> Decisions on whether either of these options are a go for production have yet
> to be decided.
>
> Hardware's conclusion:
> After added a capacitor, the volume and the noice both reduced 5dbs at the
> same time. (Please see attach file)
>
>
> Feel free to ask questions. :)
>
> Regards,
> Wendy and team
>
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