Re[2]: black widow xy monitor problem

Checked clock and reset signal

I removed the CPU

I probed the clock and it is pulsing normally all the way up to pin 5 of
E4.

The POR is high when it exits pin 14 of E4 and pins 2 and 12 of F4 and
enters F7 at pins 4 and 5.

But once it exits F7 at pin 3 and 6. It becomes low where it goes out to
R8, E3, K3 and the POR test point. It remains low from pin 4 of R8 out
to the reset.

pin 3 of E3 goes out high to H4, as it exits pins 6 and 13 of H4 it goes
low out to K3 and F4.

Pin 9 of L4 is high out to the WDDIS test point. Pins 8 and 10 of L4 are
low.

Well I hope thats understandable. Its the only way for me to describe
whats happening,

Hope someone can help
Thanks,
Dan Piraino

-----Original Message-----
From: Daniel Piraino <dpiraino@twcny.rr.com>
To: vectorlist@vectorlist.org
Date: Tue, 02 Aug 2005 23:49:32 -0400
Subject: Re: VECTOR: black widow xy monitor problem

>
> The reset tests low with the logic probe
> Thanks,
> Dan Piraino
>
> Daniel Piraino wrote:
>
> > The board set is not working

get the schematics from the web.
use the logic probe to check the clock and reset signal.
i know you said it is low, but check it from end-to-end.
if the clock seems dead from the begining then replace the crystal.

once the clock and reset are good we can move forward.

---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com

---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com
Received on Wed Aug 3 20:40:27 2005