Hi mani123,

This seems to be an issue with the speaker. Depending on the warranty status we can help you further, please use the link below to check the warranty status.

http://dell.to/1iNsJmq 

Please punch in the system service tag or express service code. In case your system warranty has expired please contact the Out of Warranty department 1-800-288-4410 (U.S.Customer only). In case your system is under warranty please send me the system service tag or express service code through a private chat, so that I can help you further. 

Click on my username select start conversation and send me the details. 

It's out of warranty. There was a power outage and the battery wasn't charged when the computer lost power. When I tried to turn the computer back on, it wouldn't boot past the windows splash screen. I did a diagnostic in Safe Mode with Networking and was informed there was a critical error on the hard drive, so I purchased a new one and cloned it so that I wouldn't lose any programs/files.That worked fine, except now I have no sound.

I did many diagnostics, BIOS diagnostic, etc. And got the error codes above, I did hear music and playback, except in the areas listed. I also downloaded the Dell recommended  drivers, but there is almost no evidence of a sound device in the Device Manager except for High Definition Audio Controller, which has a caution sign on it and this message under properties "Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)" , the same for the Bus Enumerator and the Generic PnP Monitor. I will contact out of warranty service at some point. Thanks. 

I did hear music and playback, except in the areas listed.

You wrote, "Errors are: Headphone 1  - 1B63: 1B1B...Headphone 2 -1B63:1C1B....and HD Audio Internal speaker 1B63:061B".

If you could not hear the music through the headphones or speakers how were you able to hear it?

I don't know which model laptop you have so don't know exactly which tests you have, but this might help:

All of the Dell laptops have a test based in the BIOS firmware called the ePSA tests, or on older laptops just PSA. That test can generate system tones that play through the speakers. (On newer models it plays through the headphones too). That test only tests the speakers, not the audio hardware.

In addition, older Dell laptops have a series of tests called the Dell 32-bit Diagnostics tests. That utility resides in a separate 32-bit partition on the original hard drive, and it could also be run from the utility cd that Dell used to include with the laptops. The error codes that you have posted in this thread are from the audio portion of those tests.

A possible scenario is that you heard the system tones during the ePSA tests, meaning the speakers are okay, but then could not hear the music during the Dell 32-bit Diagnostics tests, meaning the audio chip has failed.

I have a 2011 DELL XPS L502x. I did all the tests. If the audio chip has failed, does that usually mean a new motherboard? Thanks. 

I did all the tests.

I understand. I'm trying to help think through what the tests mean. Mohammed S said it seems to be the speakers, but if you heard the system tones or beeps during the ePSA tests then the speakers are working.

If the audio chip has failed, does that usually mean a new motherboard?

Failure of the audio chip means replacement with a new or used motherboard. A workaround is to get a usb audio device. Usb audio is good for audio though headphones or external speakers only. It will not work through the laptop's internal speakers.

A cheap usb audio jack might be all you need for headphones, line-out, and mono mic input. To add stereo line-in would require a more expensive usb sound card. or audio interface.

I'm going to send it in and see how much it will cost to fix. If it's worth it to fix it and keep. If not I'll just buy another and get the new hard drive out of this one. It's a shame and my fault really. Lesson learned. Thanks for your help. 

I'm going to send it in and see how much it will cost to fix. If it's worth it to fix and keep. If not I'll just buy another and get the new hard drive out of this one. It's a shame and my fault really. Lesson learned. Thanks for your help. 

thanks usefull...