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Luke49783

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I've got a DNA 75 mod that I purchased that arrived partially not working.  Spoke with the modder, replacement on the way, all good there.  He said not to bother returning the broken unit to him, so I'm attempting to fix it.  The mod uses remote buttons and the down button isn't working, so it seems like it should be an easy fix.

The issue is, I'm getting/finding conflicting information on which pins go with which buttons.  The pinout in the data sheet on the Evolv site lists the pin names for pins 3/4 as Up -/+ and for pins 5/6 as down +/-.  The function description for these pins shows the opposite (3/4 as down, 5/6 as up).  I contacted Evolv about this and they stated that they'd fix the data sheet and that 3/4 are down and 5/6 are up.

Looking at the board (as well as pictures of a DNA 200 board) pins 3 and 4 are marked with a "D" and 5 and 6 are marked with a "U".  The DNA 200 data sheet lists 3/4 as up and 5/6 as down.  

I'm inclined to believe that the board is marked incorrectly and that 3/4 are up and 5/6 are down since it's the down button in my mod that isn't working and I found that pin 6 isn't populated.

Can anyone confirm that 3/4 is up and 5/6 is down?

retird

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Reply with quote  #2 
So on your device there is two wires at the down button. Where do they connect (what pin numbers)??
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Luke49783

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Reply with quote  #3 
I assume there are two wires connected to the down button, I haven't gone as far as pulling the board out to check (not sure I want to).  Pin 5 is connected, pin 6 isn't.  If there are two wires connected to the down button, I'm not sure where the other one goes.
dwcraig1

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Reply with quote  #4 
Gee I see it. I'm surprised it's just now being caught.
I think it would be safe to just use the pin name. 
Others will answer soon I believe. I have no hands on with either board.

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retird

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Reply with quote  #5 
Quote:
Originally Posted by Luke49783
I assume there are two wires connected to the down button, I haven't gone as far as pulling the board out to check (not sure I want to).  Pin 5 is connected, pin 6 isn't.  If there are two wires connected to the down button, I'm not sure where the other one goes.


Auxiliary buttons require 2 wires thus if pin 6 has no wire connected one can suggest that is your issue since the up button works and the down button does not.

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I am not an employee of and do not represent Evolv Inc.  My opinions are just that and are not meant to be fact or even correct.

Luke49783

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Reply with quote  #6 
Using the pin name would match up with what I've seen of the DNA 200.  I don't know why they would have changed those pinouts given how similar the layout of the two boards seems to be.
Luke49783

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Auxiliary buttons require 2 wires thus if pin 6 has no wire connected one can suggest that is your issue since the up button works and the down button does not.


I agree.  I just want to verify that what I think are the down pins really are.
retird

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Reply with quote  #8 
If the up button raises the setting then it is working thus the pins are correct.  Since pin 6 has no connection that explains why the down button doesn't change a setting.
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retird

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Reply with quote  #9 
There are 6 pins.  2 are for the fire button, 2 are for the up button, and 2 for the down button.  If the fire button works then those 2 pins are correct. If the up button raises the setting then those 2 pins are correct. That leaves 2 pins which would be for the down button.  If one has no connection the down function won't work.  

You need to trace each wire down and see where they connect to pins 1 thru 6.  It is also possible, since you haven't opened it up that pin 6 is connected and you could have a bad button also.

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Luke49783

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Reply with quote  #10 
I've opened it and know for sure that pin 6 isn't connected, I just haven't gone as far as removing the board to get to the buttons.
retird

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Reply with quote  #11 
Let us know what you find out.... 
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I am not an employee of and do not represent Evolv Inc.  My opinions are just that and are not meant to be fact or even correct.

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