Author Topic: Calling all zaccaria owners  (Read 353 times)

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Offline Retropin

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Re: Calling all zaccaria owners
« on: November 16, 2010, 08:56:45 AM »
The reading i was most interested in was TP2 - CLOCK... Zac sites state that it should be PULSING... i get a LO PULSE... you get a steady LO  !@# !@#

Every other reading on you probe is correct with the Zac sites bar the CLOCK... what im assuming here is that the clock on your logic probe is not fast enough for the CLOCK on CPU and shows only a LO.
On my CPU i have a LO pulse but at only about 2hz.


This does sound like a problem (unless your probe is reading wrong) - every clock pulse I have seen in real life for a CPU is in the MHz range.

Agreed... clock seems real slow.... need to put my CRO on this but i went to use it and the probe fell apart! With CPU board out of cct and on bench clock should be 6mhz