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Date:	Wed, 19 Dec 2001 12:52:24 PST7
From:	Peter Skye <pskye@peterskye.com >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: Aopen 320 & internal speaker

Content Type: text/plain

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Sandy Shapiro wrote:
>
> I did try taking a speaker out of another case and plugging
> that into the motherboard. It was exactly the same -- a very
> faint beeping can be heard if you put your ear up to the speaker.

Then the output transistor on the motherboard which is driving the
speaker has probably popped (shorted out). This won't hurt the
motherboard, the speaker output circuit has nothing to do with the rest
of the motherboard.

Do you have an old audio amplifier around, maybe an old phono preamp or
mic preamp or guitar amplifier? You can run the speaker feed through
this amplifier and make it louder. Disclaimer here -- you're in
"hacking" territory if you do this and it's always possible to _really_
screw things up. Tech wise, the speaker drive may have some DC offset
so you should have a capacitor isolator, but there's probably one on the
input of whatever audio amplifier you use. If you like to solder, you
can put together a little preamp from a Radio Shack transistor in a few
minutes.

You better fix this soon -- I gotta get some sleep.

- Peter

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