[time-nuts] HP5372A CPU schematics
magnus at rubidium.dyndns.org
Wed Dec 29 17:06:07 EST 2010
On 12/29/2010 10:40 PM, Mark Sims wrote:
> I bought some spare 5372A CPU boards. One of them failed the histogram hardware test. Looking at the histogram/timing board schematic, the only histogram specific chips on the CPU board seemed to be a decoder and a couple of buffers. I replaced the decoder and the problem got worse with several more tests now failing.
> The ROMs are 5372-80032 .. 80039
Not matching mine. But I got Option 040 FFT option.
I've considered playing around with the Option 020 - Fast Port. Anyone
done anything like it? I consider hooking up an FPGA board and then pull
the data out that way.
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