Re: Gravitar

Amazing how long the software trial lasts if the clock is off.

Swapping to a larger eprom is possible. Keeping the pinouts and voltages
straight is the main key. Speed of the eprom is also important. You can go
faster but not slower. I attached a comparison sheet that shows some common
ones. Some boards are set up for various jumpers to swap from one eprom to
another.

Mark
----- Original Message -----
From: "andre" <livnfree_can@yahoo.com>
To: <vectorlist@vectorlist.org>
Sent: Friday, April 13, 2007 11:04 AM
Subject: Re: VECTOR: Gravitar

> It looks like it reads ok...
> If any of these chips don't compare against the rom
> image and give an error, they will not program beyond
> that spot either...
> Is it possible to use a larger size chip in place of a
> smaller one? ie. a 2732 in place of a 2716?
>
> p.s. your date is off quite a bit... trying some
> software out? ;)
>
>
> --- Mark Hooks <markhooks@earthlink.net> wrote:
>
>> If they are 2516s you should be able to read or
>> program them as 2716s. Just
>> use the 2716 setting on you programmer. They are pin
>> compatible.
>>
>> Mark Hooks
>> ----- Original Message -----
>> From: "andre" <livnfree_can@yahoo.com>
>> To: <vectorlist@vectorlist.org>
>> Sent: Wednesday, April 11, 2007 11:23 PM
>> Subject: VECTOR: Gravitar
>>
>>
>> > Got my programmer in and tried it on a few chips..
>> > Unfortunately it can only do 27 series so I am out
>> of
>> > luck on the 25's, of which I thought there were
>> only a
>> > few.. anyways..after reseating the chips on the
>> Grav,
>> > she fired up!
>> >
>> > Self test lists a problem in rom #6.. does anyone
>> do
>> > programming of 25's?
>> >
>> > Second, in the diamond pattern test screen, the
>> > diamonds are WAY outside of the white box and I
>> cannot
>> > get them inside or centered...could this be part
>> of
>> > that rom or does it point to other things? The
>> game
>> > for the most part seems to play fine although I
>> > 'think' your home system is supposed to be a
>> joined
>> > circle...the ends on this one don't meet up...
>> >
>> >
>> >
>> >
>>
> ____________________________________________________________________________________
>> > No need to miss a message. Get email on-the-go
>> > with Yahoo! Mail for Mobile. Get started.
>> > http://mobile.yahoo.com/mail
>> >
>>
> ---------------------------------------------------------------------------
>> > ** Unsubscribe, subscribe, or view the archives at
>>
>> > http://www.vectorlist.org
>> > ** Please direct other questions, comments, or
>> problems to
>> > chris@westnet.com
>>
>>
> ---------------------------------------------------------------------------
>> ** Unsubscribe, subscribe, or view the archives at
>> http://www.vectorlist.org
>> ** Please direct other questions, comments, or
>> problems to chris@westnet.com
>>
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> ---------------------------------------------------------------------------
> ** Unsubscribe, subscribe, or view the archives at
> http://www.vectorlist.org
> ** Please direct other questions, comments, or problems to
> chris@westnet.com

---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com
Received on Fri Apr 13 21:30:07 2007