Hi @balto29734
Not sure with your model but can you alter the ''balance level'' of the internal speaker audio i.e. adjust volume more to either left or right speaker?
If you can this may be a way of checking whether it is only one speaker that is the problem. Not that this matters much because if one is faulty they come as a set of two speakers connected to the one plug.
Here's the [https://dl.dell.com/topicspdf/latitude-14-5490-laptop_owners-manual_en-us.pdf|owner manual] for the laptop. Go to the bottom of p34 to view the procedure to remove/replace the speakers.
''If you determine that the speakers are faulty,'' search online for ''7Y2TF to find speaker suppliers that suit you best.''
''If you determine that the speakers are not faulty,'' here's an image from the schematic for the motherboard showing the speaker circuit for both the internal speakers and the external speaker connection.
I've shown where the speakers (both internal and external) connect to the audio codec IC and also circled some components, that if faulty, may cause problems with the internal speakers.
[image|3188134]
(click on image)