my acer aspire one netbook has lost sound, works ok on headphones.???

t v m, March 2013

It's probably a broken or disconnected speaker whire.

You need to open the case and locate the speaker whires. If they are disconnected, just plug them back.
If they are broken, you'll need to replace them. Any piece of insulated whire of the appropriate lenght wil do.

Electro, March 2013