Acer 5742 the motherboard is setting something to mono audio to stereo

BrunoLoebens

Hey guys.

I have here the motherboard of an Acer 5742. It has two L and R speaker connectors.

However, only the L side is working. Apparently the motherboard is setting something to Mono even when the audio should be Stereo.

The upper part of the notebook I have has the two speakers because it was the Acer 5733 model.

Both models use the same motherboard (PEW71-La6582p), except that the 5742's audio is mono and has HDMI. Is there anything that can be done, since the motherboard has two speakers?

This problem has been documented here on the forum and on other sites for some time.

https://community.acer.com/en/discussion/565850/how-can-i-add-jspk-2-to-aspire-5742z

In this case, his motherboard didn't even have the connector for the R speaker but he says he managed to make it work.

[Edited the thread to add issue detail]

StevenGen

https://community.acer.com/en/discussion/696144/acer-5742-mono-audio-to-stereo

This is the only specs and diagram of the Aspire 5742 audio and speaker installation and removal from its SG

This is the only specs and diagram of the Aspire 5733 audio and speaker installation and removal from its SG

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