Author Topic: Falcon16 board acting strange  (Read 775 times)

Offline Steve Gase

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Falcon16 board acting strange
« on: November 03, 2014, 10:04:07 AM »
I have several F16s that are working well... this is not one of them. :)

Falcon16 v1.01 loaded with v1.02 firmware, built by David.
I do not have flashing when programming the board with string channels and color order... nothing happens.  No flashing blue pixelnet LED.
I do not have a working test mode, nothing happens.

The board acted flaky before... power seemed to cut out and back in.  I tried multiple ATX boards thinking that this was the cause.
Now I have power connected directly from a test bench power supply and power seems consistent.

Clue...?
During programming, I had to add power through the MPLAB even when external power was added, otherwise it would not detect the PIC.
This is contrary to the behavior on a working F16 -- here I could not enable MPLAB power when external power was added.
It almost seems as if I am having problems getting power to where it needs to go.


Including pictures. 
Any thoughts?


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Offline Steve Gase

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Re: Falcon16 board acting strange
« Reply #1 on: November 03, 2014, 10:08:38 AM »
Tonight I will touch up the solder points.

Offline JonB256

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Re: Falcon16 board acting strange
« Reply #2 on: November 03, 2014, 11:41:11 AM »
The bottom side of the board looks awfully fuzzy, like the solder flux residue got wet. Was it outside on a dewey night?

Offline Steve Gase

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Re: Falcon16 board acting strange
« Reply #3 on: November 03, 2014, 11:50:23 AM »
In a battery box last season... almost always with a computer power supply generating heat and a little airflow.

Offline bagley2000

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Re: Falcon16 board acting strange
« Reply #4 on: November 03, 2014, 06:35:09 PM »
on the pic of the back side are the r1 and r2 pads lifted?
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