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Low Speaker Output Volume after O/S reinstallation

Posted on 2005-04-30
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Last Modified: 2008-02-07
I recently wiped my hard drive on a Panasonic Toughbook (CF-50) that has a SigmaTel C-Major sound card (embedded, I think). Before the wipe, the sound components worked fine (I have the laptop connected an amplified Boston speaker set). After the O/S reinstallation, the volume level coming out of the speakers is significantly reduced. With the max volume setting on the computer, paired with the max setting on the speakers, I can hardly hear the sound (it is present, though). I reinstalled the drivers for the SigmaTel card, and made sure that the volume settings were at max. No dice so far. Anyone have any experience in such a phenomenon?
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Question by:bosswhaler
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Expert Comment

by:wlennon
ID: 13900940
Was the OS Installtion from the Panasonic Restore Disk?

What OS was on it before:
Did you do a Clean Install or over install/upgrade to existing OS?

Donwloads for the Toughbook CF-50:
http://tcc.toughbook.com

There is a January 2005 Chipset update, these (Chipset/CPU) are critical updates. (Take note of the OS's these updates are for, some are NT/Win 2000/WinXP

**Try || Start-->Control Panel-->Double click the Sounds and Audio Devices Icon, make sure all the sliders are up to the maximum, click on Advanced for other options.
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Author Comment

by:bosswhaler
ID: 13901303
wlennon -- answers to your questions:

-OS Intsall was NOT from Panasonic restore disk

-OS Before: Windows XP Home (SP unknown)
-New OS: Windows XP Pro (SP2), Clean install

-Already downloaded and installed SigmaTel driver from support site (http://tcc.toughbook.com) and installed it with no luck.

-Would 1/2005 chipset updates fix this issue? I'll try this...

-Volume control is set to maximum for all output devices (WAVE, Line Out, etc)...
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Expert Comment

by:wlennon
ID: 13902350
You can also go to the Device Manager (Right Click on My Computer or Control Panel, system, then Device Manager), click the + next to Sound, video and game controllers.

If there is a yellow exclamation or question mark, there is a problem with the controller/driver and can choose properties by right clicking and Update Drivers and have it point to your unzipped drivers you downloaded.

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Author Comment

by:bosswhaler
ID: 13908257
The device manager view doesn't have an exclaimation mark next to the SigmaTel icon in the "Sound, video and game controllers" section. I installed the new driver by going through the device manager to install a new driver for the device.

The other symptom that may, or may not, be relevant is that when the apmplified speakers are unplugged, there is no audible sound coming from the laptop built-in speakers. Shrug...it's as if the output level is so low that you can't hear anything except for sounds coming out of amplified speakers at high volume/gain.
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Accepted Solution

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wlennon earned 1800 total points
ID: 13910012
The problem may lie in the Panasonic Pre-load System restore disc.  For some reason the SigmaTel drivers aren't working, so that leads me to believe that it could be the sound card drivers themselves.

I have found an Intel AC97 Codec Audio Controller Driver(s) at:

http://list.driverguide.com/list/company1690 you will have to join to get it, but the registration is free.

Look for the one in your Toughbook's Controller: That can be found in your manual, or the online manuals at the Toughbooks site, I don't have an account with them, I would suppose you do.

http://tcc.toughbook.com locate the one which will tell you if the Audio Controller is something like: 82801xx, then go to the above Drive Guide site to get the controller.
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Expert Comment

by:wlennon
ID: 13910018
That info may also be found in the Device Manager...
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Author Comment

by:bosswhaler
ID: 14109103
Sorry for the lagging response....vacation sometimes slows these things down.

I tried the aforementioned suggestions to no avail. I have yet to seek Panasonic tech support, but may try that if my troubleshooting fails....
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