[time-nuts] Re: Question about TSC5110

[Dave Daniel]

Re: the board-swapping phenonenon; I'm not familiar with the TSC5119 but if one swapped boards between a non-functional system and a functional system, I'd strongly suspect the board connectors.
 
DaveD
KC0WJN

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All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994)
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> On Jun 15, 2024, at 17:56, AC0XU (Jim) via time-nuts <time-nuts at lists.febo.com> wrote:
> 
> I have several TSC5110s. One stopped working after a period of high temps in the lab.  It wouldn't complete the boot process - just displayed the spash screen, flashed off, then splash screen again. Power cycling gave the same result. Replacing the compact flash card didn't help.
> 
> Swapping cards between two units one at a time, there were no changes in behavior until I swapped the co-processor card. Then both units started working!
> 
> I am not sure what that is about. But I notice another thing - I can't change the date/time on either unit. I suspect the CMOS battery, but I can't find it. The CPU boards don't have the standard CR2032 or anything I recognize as a battery.  When I try to set the date/time, the units freeze up and have to be power-cycled.
> 
> Anyone know how to locate the battery on these CPU boards?
> 
> Also, any thoughts on why swapping the co-processor cards made both units start working?
> 
> Thanks!
> 
> Jim
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