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[SOLVED] Toshiba A75-S206 - Intermittent Sound

This is a discussion on [SOLVED] Toshiba A75-S206 - Intermittent Sound within the Laptop Support forums, part of the Tech Support Forum category. This laptop uses mainboard sound chip with Realtek AC97 Audio. When the sound works it works fine, but it sometimes


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Old 10-11-2008, 08:52 PM   #1
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This laptop uses mainboard sound chip with Realtek AC97 Audio. When the sound works it works fine, but it sometimes just stops working when you reboot (sound adjustment options are grayed out on Sounds And Audio Devices Properties but the drivers and hardware show as working correctly in Device Manager).

I have uninstalled then reinstalled the current sound drivers several times both in Safe Mode and regular mode. This does not solve the problem when the sound is not working. I have also visually inspected the physical sound chip on the mainboard; all solder joins seem intact and it shows no evidence of generating excess heat.

The issue can usually be fixed by removing the battery, powering down the computer, disconnecting the AC adapter, waiting about 5 minutes, then rebooting. But invariably the sound will stop working again at the next reboot or the reboot after that.

Does anybody have any ideas or options that I haven't tried yet? I would very much like the sound to work all the time on this box, which has been otherwise very dependable.

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Old 10-12-2008, 01:20 AM   #2
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When you get NO sound, check device manager on status of Sound/Audio. Post back what you see.

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Old 10-12-2008, 04:05 AM   #3
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Quote:
Originally Posted by TriggerFinger View Post
When you get NO sound, check device manager on status of Sound/Audio. Post back what you see.
See the threadstarter. Sound adjustment options are grayed out on Sounds And Audio Devices Properties but the drivers and hardware show as present and working correctly in Device Manager. This is true both in standard and Safe Modes.
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Old 10-12-2008, 05:23 PM   #4
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Bump - any other ideas to resolve this?
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Old 10-14-2008, 02:17 AM   #5
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I am going to declare this thread "solved". I removed the mainboard from the laptop again tonight and counted seven broken solder joins where the sound chip attaches to the mainboard, and 15 more on the connector for the DVD-ROM module (which is also inop) which attaches to the mainboard. Additionally, the plastic mount for this connector is cracked - looks like the previous owner tried to "fix" the DVD-ROM by slamming it hard into the bay. Being surface-mount technology, they are impossible for me to repair with the equipment I have. So it looks like a new mainboard or a new laptop is in my future.

Thanks to all who read and responded.

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