Re: Sega Universal Sound Boards

On Wed, 14 May 2003 08:10:07 +0400, "peter jones" <highwayman2000@mail.ru>
wrote:

>-----Original Message-----
>From: "Mark Jenison" <jenison@enteract.com>
>To: <vectorlist@synthcom.com>
>Date: Tue, 13 May 2003 21:59:18 -0400
>Subject: VECTOR: Sega Universal Sound Boards
>
>>
>> Hi all,
>>
>> I've been struggling with debugging 16 Universal sound boards. A good
>> number of them mostly work except for the explosions, which create a "bong"
>> noise instead of the appropriate explosion in Star Trek. In Tac/Scan, this
>> problem effects the thrust noise, which creates a "rrrrr" sound. Apparently
>> the problem is related to a white noise generation on the board, but the
>> chip that produces the white noise appears to be fine, so it must be getting
>> screwed up somewhere else on the board. I'd appreciate any debug tips for
>> this problem that anyone can offer.
>>
>> Does anyone else here have any experience working on these boards? I'd be
>> interested in trading repair tips or logs.
>>
>> I'd also be interested in working a deal where I could get a few working
>> ones back in exchange for the rest (or maybe for some other boards).
>>
>> Last but not least, can someone recommend a chip search engine? Google
>> seems to not be very helpful when searching for chips. In specific, I'm
>> looking for MP7524 (schematics say AD7524, so that'd probably work as well,
>> or any cheap cross that would work).
>>
>> Thanks.
>>
>
>try this:
>http://www.maxim-ic.com/quick_view2.cfm/qv_pk/1594/ln/en
>(found with google)

Or this:

http://www.analog.com/index_noflash.html

And type in AD7524 in the search window.
(The direct link was out of control long.)

-Zonn

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Received on Tue May 13 21:25:41 2003