Acer Travelmate p253-m internal left speaker problem!!!

xllasha

(Handshake) everyone!

 

I will tell you about my problem in short:

I have laptop travelmate p253-m. Yesterday, i decided to clean cooler. i disassembled laptop well, cleaned cooler and when i re-built it and started windows 7, i mentioned that left speaker stopped working. When i plug my iphone headphones everything works great! but internal left speaker died??? wtf. i didn't tear any connectors on motherboard. 

 

after this, i re-disassembled laptop again, change internal speakers locations on motherboard, started windows 7, right speaker worked perfectly but left didn't. so, i think the issue is with motherboard and not with speaker. should i replace whole motherboard cause of this problem? or should i change only speaker pin connect on motherboard to fix that problem?

 

Thanks a lot!!