Re: looking for a chip

Don't know if it helps any...
The MB3712 (commonly Fujitsu branded?) is a really common old audio amp used on
many older arcade boards, and you can double your chances of finding one,
as the MB3713 is absolutely identical but has the pinouts reversed,
so if you can find an MB3713 just put it in the other way around...

You can see the pinouts on many old schems, including page 8 of this one:
http://www.spies.com/arcade/schematics/PDF/MoonCrestaSch.pdf

Cheers,

Marc

----- Original Message -----
From: "Jess Askey" <jess@askey.org>
> Are these the same chips used on most Konami boards? If so, Im sure I have a
> track and field board around here that I can send you. Anyone know if they are
> the same? It sounds very familiar.
>
> Mark E Davidson wrote:
> >
> > An apology to all as this is really a raster question... Only problem is
> > that after 3 send, It doesn't seem to go through and since most of the
> > people read here anyway..... My question..
> >
> > Im looking for an IC for my Cinematronics, Jack The Giantkiller board, I
> >
> > believe that it is the audio amp chip for the sounds. The Fairchild # is
> >
> > MB3712. This crosses to an ECG 1423. The real problem is that NTE bought
> >
> > ECG and NTE has no cross-reference for this chip. A quick trip to my
> > local electronics store confirmed my fears that NTE dumped the ECG chip
> > in the acquisition :-(.
> > Does anyone have a source for this chip or pin out of these chip (it is
> > an 8 pin single inline package) so I can do some reverse engineering?
> > Unfortunately ECGs site is gone so that's no help. :-(
> >
> > ---------------------------------------------------------------------------
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>
> --
> later,
> jess
>
> ***** I have a new email address... jess@askey.org *****
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Received on Fri Jul 20 00:19:00 2001