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Old Oct 20, 2014, 08:08 PM
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United States, VA, Harrisonburg
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Phantom 2 Central Board Schematic

Had my Phantom 2 central board die on me while looking into the battery pack communication, so instead of binning it, I figured I'd at least get some useful info from it for any future repairs or projects that I or anyone else may get into with this thing.

New PCB for comparison.



Top of the PCB with all components removed. (bottom side has no components)



How I've laid out the component designators.



PCB stripped (50%) overlay on original scan, to double check the top layer tracing. NOTE: The PCB is 4 layers, so not all of the traces can be seen.



..and BGA connections used, which is less than half, only 43 out of 100.




Lo resolution version of the schematic. Hi Resolution version is attached. (Note the GPS and Compass are not done, only shown as modules.) I may do the ESC later, but that will go into the Phantom 2 ESC thread.




CONNECTORS

SMB 2 pin, COMP 5 pin, CAM 6 pin, ZENMUSE 8 pin - Molex PicoBlade 51021

ESC 4 pin, CAN 4 pin, EXP 6 pin - JST GHR-xxV-S Series

CAN Connectors (Accessories) - Molex Micro-Fit 3.0 43640 - 43645
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Last edited by RDCF550; Nov 14, 2014 at 03:48 AM. Reason: Additional Info
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Old Oct 25, 2014, 09:42 AM
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Joined Jan 2012
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Nice work, is that a 2 or more layer board?
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Old Oct 25, 2014, 09:56 AM
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United States, VA, Harrisonburg
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Thanks. I haven't stripped it down to verify, but from what I see it's just a 4 layer PCB. Top, Inner 1, Inner 2 and Bottom.
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Old Nov 01, 2014, 01:17 PM
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You sir, are The Man! Thank you for putting this info together!
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Old Nov 26, 2014, 04:47 PM
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Thanks!

Thanks so much for posting this. Saved me a bunch of time. I replaced my ZenMuse cable. I got a bad one that was shorted. Blew Q2. Thanks to these pics and schematic, I was able to identify the blown part. New one on order. $3.62 for 10 of them I'm sure I can use them in other projects around here.

Through the microscope.

-Craig
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Old Nov 26, 2014, 05:21 PM
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Welcome, but that's Q1, not Q2. Typo?

Q1 is the SOIC8 you've had nuke there, an AO4407A, which is also half of the 3 pair of FETs that are used on the ESC boards. If you pick up some of the other half of those, the AO4430, you'll be able to repair some ESCs as the FETs are all I've seen go bad on them so far, aside from mechanical damage when an arm bends or breaks.
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Last edited by RDCF550; Nov 26, 2014 at 05:38 PM.
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Old Nov 27, 2014, 07:29 PM
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Canada, BC, Castlegar
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Thanx for this . Great stuff . It doesn't surprise me about the FETs blowing as they did . Typical .
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