SCOUG-HELP Mailing List Archives

<< Previous Message << >> Next Message >>

Date:	Wed, 19 Dec 2001 13:39:39 PST7
From:	sshapiro@ucsd.edu (Sandy Shapiro)
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: Aopen 320 & internal speaker

=====================================================
If you are responding to someone asking for help who
may not be a member of this list, be sure to use the
REPLY TO ALL feature of your email program.
=====================================================

Hi Peter,

I don't mind a little soldering, but It is a tossup whether to play around
with it, just take the motherboard back (it is still in warranty), or just
live with it.

If I could find a way to route the PM Fax sounds through the external
speakers, I definitely would just leave well enough, alone.

Get a good sleep,
Sandy

>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

>=====================================================

>To unsubscribe from this list, send an email message
>to "steward@scoug.com". In the body of the message,
>put the command "unsubscribe scoug-help".

>For problems, contact the list owner at
>"rollin@scoug.com".

>=====================================================

=====================================================

To unsubscribe from this list, send an email message
to "steward@scoug.com". In the body of the message,
put the command "unsubscribe scoug-help".

For problems, contact the list owner at
"rollin@scoug.com".

=====================================================

Return to [ 19 | December | 2001 ]

SCOUG, Warp Expo West, and Warpfest are trademarks of the Southern California OS/2 User Group. OS/2, Workplace Shell, and IBM are registered trademarks of International Business Machines Corporation. All other trademarks remain the property of their respective owners.