[time-nuts] Austron 2200 stuck in POST loop - fixed.

[paul swed]

Well you have quite a basket case there.
The only thing you need is the a6 slot which is the antenna board.
Granted you need to go into the menus and turn off what ever was in the old
slots. By the way when you get to the menu it will at least give you a clue
as to what the board was.
If you get a down converter then the system would actually come up without
the options.
It will have the rollover issue so you have to figure out the gps week
minus 1024 etc.
But you are a long long way from that concern.
Can't comment on the replaced parts. I am however sure it will bight me one
day. Far sooner then later.
Good luck
Paul
WB8TSL



On Sun, Jun 9, 2013 at 6:06 AM, Mark C. Stephens <marks at non-stop.com.au>wrote:

> Dear all,
>
>
> My 2200 was stuck in a POST reboot loop.
> It would check, RAM, ROM RTC then say waiting for signal processor the
> reboots again.
>
> During troubleshooting I replaced both Zero Power NVRAM and RTC chips.
> I only had old ones, but they must have enough juice left and  this has
> appeared to have cured the problem.
>
> The 2 Parts in question are:
> MK48T128 zero power RTC
> MK48Z02 zero power NVRAM
>
> At some stage someone has replaced the original zero power NVRAM and RTC
> with the Dallas Semi equivalents which were really pricey.
> I found the new original part numbers to be much cheaper.
>
> I have also ordered both new ones for the princely sum of $20 AUD
> including shipping :)
> Well, I am hoping they are actually new and not flat...
>
>
> -marki
>
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