RE: Battlezone problems

From: Hendrix, Jeff <Jeff_Hendrix_at_maxtor.com>
Date: Mon Oct 11 2004 - 17:14:44 EDT

I haven't had time to check my machine, but after looking at the schematics for a while I think the "sound enable" line must be stuck on (maybe a bad ls273 at M2).
I'm also making an assumption that there is sound always coming from the pokey and it's just muted at the 4066 at L4.
If someone has a chance, could you check if there is a signal coming from pin 37 of the pokey when the game is in attract mode. (or jump across pins 10 & 11 of L4, which would allow any sound to pass to the amplifier)

-jeff

-----Original Message-----
From: owner-vectorlist@vectorlist.org [mailto:owner-vectorlist@vectorlist.org] On Behalf Of vernimark
Sent: Sunday, October 10, 2004 7:37 PM
To: vectorlist@vectorlist.org
Subject: RE: VECTOR: Battlezone problems

Jeff, what about your BZ? Does it work now?

> -----Original Message-----
> From: owner-vectorlist@vectorlist.org
> [mailto:owner-vectorlist@vectorlist.org] On Behalf Of vernimark
> Sent: venerdý 1 ottobre 2004 4.22
> To: vectorlist@vectorlist.org
> Subject: RE: VECTOR: Battlezone problems
>
>
> If 244 works fine it could be the same problem I had with
> Star Wars Coin ground must be short-circuited with general
> ground and all ground and rtn pins on both connectors must be
> short-circuited with the ground (i.e. pins N and 12 on vector
> generator PCB) Marco
>
> > -----Original Message-----
> > From: owner-vectorlist@vectorlist.org
> > [mailto:owner-vectorlist@vectorlist.org] On Behalf Of Hendrix, Jeff
> > Sent: giovedý 30 settembre 2004 14.57
> > To: vectorlist@vectorlist.org
> > Subject: RE: VECTOR: Battlezone problems
> >
> >
> > I was looking at that last night. The signal is good to the inputs
> > of the 74244, but I didn't take the time to get a 2nd probe and
> > trigger on the chip select to see how the output behaves. The test
> > switch does work correctly, and it goes through the same 74244. And
> > the dip switches work correctly, so the bus is fine.
> >
> > -jeff
>
>

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Received on Mon Oct 11 17:16:50 2004

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