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Old Jan 13, 2014, 08:55 AM
Quad Whisperer
Joined Jul 2008
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KK2 repair schematic files

Here is the schematic and layout for the KK2 FC. (Also known as KK2.0)

Common faults:
1: 20MHz crystal defective.
2: R1 defective.
3: ATMEL microcontroller fuse settings messed up.
4: Flash messed up due to low voltage during programming.
5: Gyro and ACC IC's bad soldering.
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Old Jan 13, 2014, 09:03 AM
Registered User
Joined Jun 2011
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Cool, thanks! Will fire up eagle and scrutinize ASAP

lol jk. I have little experience with eagle and schematics. Just curious how everything is set up.
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Last edited by kev82; Jan 13, 2014 at 09:13 AM.
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Old Jan 19, 2014, 11:33 PM
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+1 kapteinuk
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Old Jul 09, 2014, 09:42 AM
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Joined May 2012
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My understanding is there is a KK2 board & firmware version prior to what HK is selling. So, a few questions:

Is this the version of the KK2 board before HK made theirs?
Can it be used to make a KK2 board that will run the latest FW?
Is there a complete parts list available, (including the manufacturer and P/N of the LCD module ?)

Alternatively, is there a non HK version of the assembled KK2 available for purchase?

Thanks
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Old Jul 09, 2014, 10:53 AM
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This is the Version that was sold by HK as kk2.0. It can now also be purchased at whitespy
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Old Jul 09, 2014, 01:19 PM
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Thank you.

Is it known if the boards now being sold by Whitespy include the fixes mentioned in post #1, which all sound like quality problems?
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Old Jul 09, 2014, 01:22 PM
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Post #1 doesn't list things to fix. It lists things that are the most like faults.
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Old Jul 09, 2014, 02:41 PM
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do not worry, we have a practice test in place to double and triple check the Common faults including this high 20MHz crystal defective rate known problem, but we are lucky; so far, It is not a problems with our awesome part supply sources . fly with confidence!
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Old Jul 09, 2014, 04:06 PM
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Thank you.
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Last edited by Fly_electric2; Jul 10, 2014 at 08:52 AM.
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