Mine was doing this too!  And it was getting quite annoying, as sometimes 
it would happen in the middle of the night.  It's stopped doing this, but 
has another problem now...  It always thinks it's April 15, 2000...  04 15 
00

On Monday, June 10, 2019 at 8:36:35 AM UTC-7, David Fleig wrote:
>
> I switched to a different power supply and it's been running fine so far.  
> If it happens again I'll try the cap.
>
> Thanks,
> David
>
> On Sunday, June 2, 2019 at 6:09:23 PM UTC-4, Terry Kennedy wrote:
>>
>> On Sunday, June 2, 2019 at 4:44:05 PM UTC-4, David Fleig wrote:
>>>
>>> I've got a Nixichron purchased from Jeff Thomas years ago that's not 
>>> behaving.  It starts up and runs fine for several hours or even a few days 
>>> then starts emitting a continuous beep and the display goes blank.  
>>> Unfortunately, it's random enough that no ones seen it actually happen, we 
>>> just hear it.  Unplugging it and plugging it back in fixes the problem 
>>> until it happens again.  Jeff had fixed this issue a couple times for me 
>>> but I never got the details on what he did.  I've looked over the board and 
>>> don't see anything obviously wrong.  I've also pulled the processor and 
>>> level-shifters out, cleaned the terminals and replaced them but it hasn't 
>>> helped.
>>>
>>
>> I have one that used to do that a lot. Updating to the latest firmware 
>> (from MichaelB) helped somewhat, but putting it on a UPS seems to have 
>> solved the issue. Based on that, I suspect that some power glitches are 
>> latching up the power-on reset logic in the clock. Fitting a large-value 
>> capacitor across the power input may help (you can test this on a 
>> disposable power adapter, rather than opening the clock up again).
>>
>

-- 
You received this message because you are subscribed to the Google Groups 
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To view this discussion on the web, visit 
https://groups.google.com/d/msgid/neonixie-l/fc1bb92d-821c-49e9-a53a-7a1330a8bac6%40googlegroups.com.

Reply via email to