Re: TECH: Tempest Mathbox "M" error

Hi.

 I reflowed solder to the connector plug mount on both boards (main PCB and AUX PCB).

-Steve P.

  ----- Original Message -----
  From: Rodger Boots
  To: vectorlist@vectorlist.org
  Sent: Monday, August 09, 2004 2:02 PM
  Subject: Re: VECTOR: TECH: Tempest Mathbox "M" error

  By "Also reflowed solder to the connector plug to no avail." you mean on the main board, right?

  Steve P. wrote:

 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 14:34:41 2004