Re: BZ SUCKS :)

If the logic part of the game was working correctly, you wouldn't get any
"Boops" - you just get one small "Beep" when the test pattern comes up. If
you don't have a signature analyzer, your best bet would be to start
replacing the 24 pin rom sockets - then if that doesn't work - replace the
address and data buffers at N2, K3, P4 and P2. Also try to examine the
traces to see if there's any broken traces. I find those all the time.

Make sure all your voltages are correct too.

Matt

----- Original Message -----
From: "Jill Stancliff" <jstancliff@mchsi.com>
To: <vectorlist@vectorlist.org>
Sent: Saturday, August 23, 2003 1:31 PM
Subject: RE: VECTOR: BZ SUCKS :)

> I Got ahold of a BZ.
>
> Since I have no experience with these (BZ boards that is) I thought I'd
ask
> before I started to deep on this.
>
> First here is what I did...
>
> Repaired Go5 monitor and tested in asteriods. Working fine now.
> Test all voltages from power supply. All good
> Replaced all 40 pin chips on Aux PCB (new from BG micro) and tested Pokey.
> Pokey good.
>
> Power up
>
> Boardset gives continous low Beeps... BOOOOOP BOOOOOP BOOOOP in self test.
> No picture.
>
> Reburn and replace all roms.
>
> Same low sound BOOOOP BOOOOP BOOOOP in self test.
>
> Game plays blind in game mode.
>
> looked at outputs on XY
> I think Y looks right, but X looked wrong. Changed op amp and other stuff
on
> x side with same result....
>
> Any ideas?
>
> I ordered 8 24 pin and 1 40pin machine sockets. I am going to replace all
> the sockets on this PCB as they all seem kinda crappy, but I think there
is
> more to the problem then this.
>
> Thanks,
>
> Fred
>
>
>
>
>
>
>
>
>
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Received on Sat Aug 23 21:08:23 2003