RE: Red Baron AVG ROM question

Chris,

Yes, I am using a Red Baron AUX. The self-test isn't completely legible,
I'm displaying it on by scope until replacement deflection transistors arrive.

It looks like there may be an error code. I just fired it up this morning
and adjusted the display to fit everything on the screen in test mode and
saw what appears to be a "4RR". This doesn't jive with the error code
descriptions on the backsheet, so I need to get the monitor happy so I can
see the message correctly (my scope doesn't handle the "Z" input very
well....).

Thanks for verifying the modification. The game is resetting the NOVRAM and
decoding the joystick inputs, so at least it is communicating in some form
with the AUX. There appears to be no mathbox errors displayed, but the
sound is kaput as well.

Oh well.... this one goes into my collection kicking and screaming. Some
go peacefully, some resist.

         - Matt

At 01:08 AM 5/8/00 -0400, you wrote:
>Matt,
>
> I did the same modification myself a couple months ago, and it worked
>fine. The schematic differences you see may be due to the fact that there
>were some original RB main boards with an extra ROM socket so you could use
>all 16k ROM's instead of the one 32k. As for the game not playing, do you
>have a RB Aux board? The game will not play with a Battlezone Aux board (at
>least I haven't ogtten it to work). Are you seeing any errors in test mode?
>
>Thanks,
>-Chris
>
>-----Original Message-----
>From: Matthew Sell
>To: vectorlist@synthcom.com
>Sent: 5/8/00 12:18 AM
>Subject: VECTOR: Red Baron AVG ROM question
>
>Howdy,
>
>
>I recently attempted to modify a Battlezone AVG board to run Red Baron
>using the modification text listed in the ROM set used for MAME. The
>modification is listed as follows:
>
>All roms 2716 with the exception of H1, which is a 2732 with pin 18
>pulled
>up and a wire run to M2 pin 13
>
>I performed this modification - and the game runs the self test but not
>the
>game. In attempting to troubleshoot the boardset using the Red Baron
>schematics, I noticed that H1 is listed as an 8316, with the same
>address/data wiring as Battlezone.
>
>???
>
>Are the schematics incorrect, or is this modification not necessary?
>
>I'd try it out, but ran out of 16K EPROMS..... : )
>
>Thanks!
>
>
> - Matt
>
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Received on Mon May 8 10:26:59 2000