On Sat, Nov 2, 2013 at 6:23 PM, Christopher Havel laserhawk64@gmail.com wrote:
On 11/2/2013 12:52 PM, luke.leighton wrote:
ok to make this easy - as in "anyone can do it" - i've placed a set of images from which i have pretty much literally cut/paste the schematics from them: app notes, datasheets and so on. the images are here: http://hands.com/~lkcl/eoma/kde_tablet/rev3_review/
so it's *literally* a matter of "print out the two and compare". i really *really* need people's help going over these - you do not need to be an electronics expert, you only need an eye for detail.
two things:
- are the connections the same?
- are the values (resistor, capacitor) the same?
that's all i need, but it's essential that it gets done.
l.
On Fri, Nov 1, 2013 at 11:24 PM, luke.leighton luke.leighton@gmail.com wrote:
almost there, just need a last schematics review, the plan is to send the PCB off early next week (2-3 days time). I REALLY NEED HELP here. reviewing schematics and so on. this will be the first board i've done, and it's detailed and complex (but not amazingly hard).
phil, nginx/apache appears to be out on hands.com so i'm putting a copy of the schematics here: http://lkcl.net/tablet2.pdf
l.
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OK, here's your corrections -- as 'sticky notes' within the PDF --> http://www1.datafilehost.com/d/3ef283e8 (uncheck the "download manager" checkbox, and click "DOWNLOAD" -- do NOT click "DOWNLOAD NOW" if you see it; that's an ad and is NOT legit)
Let me know if any problems... or if I've been a tremendous dunderhead :P
awesome chris - thank you, got it. i've also printed everything out (an hour ago), done a compare.... found over *twenty five* mistakes... oops :) SATA wrong way round... still have to check Ethernet, Touch, I2C, MXC6225, and the ATSAM4S. R11 needs to be 4.7k, R12 and R13 need to go (I2C pull-down is already on EOMA68), R4 goes, the RESET# needs a 100k resistor on input....
let's see what you found, eh? :)
l.