Electronics > Repair

Symmetricom NTS-200 Time Server

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smgvbest:
Here's another one of the Lattice chips,  the GAL22LV10C @ U15



and it's datasheet

 GAL22LV10D.PDF (588.45 kB - downloaded 111 times.)

acfnews:
Sandra (et all),

I also have a NTS-200 (on a remote site), which I'm eager to get fixed as the time on this unit is also affected by the week-rollover issue.
I will pick this unit up for some debugging on this.

Hopefully we can get this fixed, seems like a lot of people still have this unit...

Ron

smgvbest:
I looks like you can use a AT49F1025 to replace the EPROMs on the NTS-200.   They are pin compatible with 1 extra address line (A15) that on the AT27F516 is a NC pin.
this will make testing code changes easier as the chip can be reflashed as needed unlike the 27F516 which is OTP

smgvbest:
if I'm lucky I finally found the NET+40 hardware reference manual and datasheet (more of a marketing sheet)

see attached
 73-NET-40-QIPRO-4.pdf (4343.89 kB - downloaded 114 times.)

 93600.pdf (175.72 kB - downloaded 97 times.)

BloodyCactus:
Just noticed this, from my original post my nts-200 is now toast. its weird, its rollover occured very early january I think or something. My machines started saying it was 2006 :/

I guess these things are basically paperweights now... shame.

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