Re: Gravitar missing some sounds

Swap the two POKEY chips (at B3 and C/D3) and see if anything changes.
Could be one is bad. If nothing changes, replace LM324 at D5. If nothing
changes, replace LM324 at B5. If I knew specifically which of the two
POKEY's generates which specific sounds then I could be more specific as to
which POKEY or opamp is most likely at fault.

William Boucher
http://www.biltronix.com

----- Original Message -----
From: "Kevin Moore" <talon.k@gmail.com>
To: <vectorlist@vectorlist.org>
Sent: Sunday, March 24, 2013 6:54 PM
Subject: VECTOR: Gravitar missing some sounds

> I've got a Gravitar that is missing the enemy saucer explosions, and
> the fuel pick up sounds. I've read that this can be caused by a
> Grav-BW-Grav conversion. This is not one of them. I've checked the
> resistors, and caps in the sound area and have come up blank..
>
> Kevin
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Received on Sun Mar 24 19:30:26 2013