Bob and Fran Laughton on 12/1/00 12:50 AM wrote:
> A while ago I took apart my Duo2300 in order to upgrade the internal modem
> to a 19.2 GV Mercury.
>
> Everything is working quite well, I even installed version 8.6 OS. When I
> use the etherdock at work I can get on DSL. It even finds the HP8100 11x17
> duplex printer on the Windows NT network. Life is good.
>
> The problem is that the Duo's internal speaker is not working at all. I am
> able get sound out from various docks, but no sound at all when undocked. I
> wouldn't even care, except I have recently discovered abc tune files on the
> web, and I want to be able to play them even without a dock and speakers
> handy.
>
> Could I have messed up the connection to the speaker? With the old modem it
> used to 'click' at initialization. Or is it possible that the speaker just
> quit working? Is there a way to test the speaker?
The power to the speaker is provided by way of the video cable. Perhaps it
became slightly dislodged when you installed the modem. I kind of doubt it
though because that seems too simple, but you never know.
It might also be a loose connection to the speaker. To check this you would
need to disassemble the screen. Not a simple task.
You might also (if you haven't already) check the sound out settings in your
Monitor/Sound control panel. Even try Zapping the PRAM (hold down
Option;Command;P;R keys right at startup and release after you here 3
startup tones).
If your brave enough to disassemble the screen there is a service manual
here: <http://64.34.128.5/manuals/>
Good luck!
-makmac
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