Re: Wierd result while testing MS Pacman board

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As far as I can tell this screen came up JUST before the crosshatch
pattern, but I could not get a consistent failure. Using Midway
ROMs/Eproms, with original PACMAN and MS PACMAN (Checksums AND FLuke
algorithm both agreed on this). All was factory...weird...

John :-#?#

At 01:55 AM 10/17/00, Kev wrote:
>Very curious indeed.
>
>Could you elaborate a bit on the ROMs used, especially on the main board?
>Ideally I'd like to know if they are Masked or EPROM.
>
>The Namco bit must be in the Pac-Man stuff as I don't think it would be in
>the Ms Aux board. As I understand it this is a Midway thing so Namco
>should'nt have any influence in this.
>
>I might know a guy that could tell us more about the software if he knew
>where to look.
>
>Kev
>
>----- Original Message -----
>From: John Robertson <jrr@flippers.com>
>To: <TechToolsList@flippers.com>; <techtoolslist@flippers.com>
>Sent: Sunday, October 15, 2000 7:30 AM
>Subject: RE: Wierd result while testing MS Pacman board
>
>
> > I was trying to find a bad IC socket, game was running under the Fluke
> > 9010A with the pod in UUT Run mode, and the test switch for the game board
> > in the "on" position. Board would reboot with the watchdog, and this odd
> > screen came up and stayed up once, then would just flicker in and out,
>then
> > I couldn't get it back. Had the Midway MPU board, and the Ms Pac sub
>board,
> > the Fluke Z80A pod was plugged into the MS pac card...
> >
> > John :-#?#
> >
> > At 01:45 PM 10/16/00, Chris Loggans wrote:
> > >I've never seen it, but I don't doubt it's hidden in the code somewhere.
> > >Probably a way to check bootleg boards for pirated code. It would
> > >definately be interesting to find out how this is activated. What were
>you
> > >doing to the board at the time it happened?
> > >
> > >-Chris
> > >
> > >-----Original Message-----
> > >From: John Robertson
> > >To: techtoolslist@flippers.com
> > >Sent: 10/15/00 6:32 AM
> > >Subject: Wierd result while testing MS Pacman board
> > >
> > >Anyone seen this? I had a Ms Pacman boardset (Midway) under test on the
> > >bench and at one point up popped on the screen the following (written
> > >for
> > >horizontal viewing in RED DOTS!) "MADE BY NAMCO" The three words were
> > >each
> > >almost the width of the screen and 1/3 the height, in RED DOTS!. Very
> > >curious. I was unable to figure out how this happened. Hints?
> > >
> > >John :-#)#
> > >
> > > John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
> > > Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
> > > http://www.flippers.com
> > > "Old pinballers never die, they just flip out."
> > >
> > > To UNSUBSCRIBE from techtoolslist, send a message with "UNSUBSCRIBE" in
> > >the
> > > message body to: techtoolslist-request@flippers.com. Please direct
> > >other
> > > questions, comments, or problems to jrr@flippers.com.
> >
> >
> > John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
> > Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
> > http://www.flippers.com
> > "Old pinballers never die, they just flip out."
> >

  John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
  Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
  http://www.flippers.com
         "Old pinballers never die, they just flip out."

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Received on Mon Oct 16 16:13:24 2000