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Re: Pushbuttons are not responding


 

OK. I'll check that and report out when I get back to it tomorrow morning.? Thanks all for the help. This one really has me a bit befuddled.

Wayne

On Mon, Apr 8, 2024 at 2:22?PM mike/w1mt <w1mt.qrp@...> wrote:
Weird that the Tune encoder button is working but the two pushbuttons
are not. They use the same divider resistor (R211). I suppose you
could try checking the voltage at pin 6 while powered and pressing
each button. Figuring what each button should create is simply a
voltage divider calculation, or measure it with a known good board and
compare with the bad control board. If you can, measure it on the main
board pin 6 for that connector.

-mike/w1mt

On Mon, Apr 8, 2024 at 2:11?PM Wayne Greene <wayne.greene489@...> wrote:
>
> Hey, Ron. The encoders are working. I just checked R301 and R302. R301 is reading 3.3k and R302 is reading 6.8k.
>
> Wayne
>
> On Mon, Apr 8, 2024, 14:00 Ronald Taylor <wa7gil@...> wrote:
>>
>> Wayne, are the encoder buttons working? If they are also not working you should check for continuity from the ground side of any of the buttons back to a main board ground point. It's probably a good idea to check continuity to the main board ground from each of the 4 buttons anyway. If it's just the two little push buttons, then you might also check to see if resistors R301 and R302 are present and undamaged. Good luck ... Ron
>>
>> On Mon, Apr 8, 2024 at 10:52?AM Wayne Greene <wayne.greene489@...> wrote:
>>>
>>> Hey, Chris. I could see how that can happen, for sure. I have the headers installed correctly. The encoders are working, so I'm taking that to indicate the control board header is installed correctly, anyway.
>>>
>>> Wayne
>
>







--
Wayne Greene

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