Re: TECH: Tempest Mathbox "M" error

 Hi.

 Thanks for the reply. I'm using the cable that's attached to the good set
of PCBs, so the cable should be good.

 I've swapped the bad AUX board onto my good PCB using the interconnect
cable that was attached to the good main PCB. I've swapped all of the
socketed chips on the AUX board and still get the "M" error on the self
test. Also reflowed solder to the connector plug to no avail.

-Steve P.

----- Original Message -----
From: "Paul Maddern" <paul@pobtastic.co.uk>
To: <vectorlist@vectorlist.org>
Sent: Monday, August 09, 2004 11:59 AM
Subject: RE: VECTOR: TECH: Tempest Mathbox "M" error

> Have you checked your interboard connect cable? "M" isn't a specific
error,
> it just means Mathbox failure - if you're swapping in known good ALUs in
and
> everything on the AUX board 'looks' okay that's the first place I'd look
> myself.
>
> Pobster
>
> -----Original Message-----
> From: owner-vectorlist@vectorlist.org
> [mailto:owner-vectorlist@vectorlist.org] On Behalf Of Steve P.
> Sent: 09 August 2004 16:35
> To: vectorlist@vectorlist.org
> Subject: VECTOR: TECH: Tempest Mathbox "M" error
>
> Well, the Tempest board that I posted a tech question to the list about
the
> other day lasted about 15 hours before dying again. I do have a spare
board
> on hand which makes troubleshooting a bit easier. The main board seems to
> have blown out the XY circuitry again (the TL082 and/or MC/SG1495s). The
> AM6012s are good as my PCBs are socketed there and I can swap the chips to
> my good board set to test. I am going to socket the TL082 and MC/SG1495s
> this time around and we'll see if replacing those fixes the main board
> again.
>
> The AUX board on the now bad PCB set I swapped over to the good PCB and
now
> get a "M" mathbox error on the self test. I've swapped all of the
socketed
> chips on the AUX board with those from my good AUX board and still get the
> "M" error. I've reflowed solder to the interboard connector plugs and
still
> get the "M" error. Any ideas on where to start on with one?
>
> Thanks in advance!
>
> -Steve P.
>
>
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Received on Mon Aug 9 13:20:55 2004