Anthony,
*******
I attempted to Trace back from the RESET CKT
and indeed at the point where the GND and RESET
POINTS on the Board are present the RESET PIN is
Stuck LOW all the time.
Does anyone, or yourself, know what IC's
actually make up the RESET CKT Going back up
to the 6809 CPU ???
O.K. a lot to ask for but thought I would ask
just the same.
Arcadius....... :-)
-----Original Message-----
From: Anthony Ramos [mailto:aramos@ele-mental.org]
Sent: Tuesday, September 24, 2002 12:56 PM
To: vectorlist@synthcom.com
Subject: Re: VECTOR: NEED SOME HELP with a DEAD STAR WARS BOARDSET....
Right. A correctly functioning watchdog circuit only *pulses*
the RESET line, then watches again, and pulses again, if
necessary. On a bad board with a good watchdog, it does
this: ~~~~~_~~~~~_~~~~~_~~~~~_~~~~~ etc.
RESET stuck low is almost certainly due to a bad watchdog
circuit. If you don't have schematics, or you can't read them,
maybe someone here can help.
By they way, have you made sure the reset *button* isn't "stuck
low"? ;-)
-aramos
On Monday, September 23, 2002, at 09:30 PM, Stempak
Arcadius-ASTEMPA1 wrote:
> So question is, since the RST on the CPU on this STAR WARS MAIN is
> Always Stuck LOW, and from what I read should Only go LOW when
> the Board is
> actually RESET.
-
Anthony Ramos -- aramos@ele-mental.org / aramos@hyperreal.org
phone: 503.236.6303 / mobile: 503.267.3519
600 Southeast 39th Avenue #3, Portland, Oregon 97214 USA
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Received on Tue Sep 24 14:16:05 2002
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