Auzentech X-FI Forte 7.1 problem

I have this sound card since 2011 when I bought it brand new...


For maybe like 2 years the Rear right channel is distorted and like a year ago the mic input went puff (nothing is captured).


Does anyone have any suspicion of what could be happening?


Do you think it's capacitor problem or the OpAmp? (those are probably the only things I can mess with). Visually they look in mint conditions, but their true values I have no idea.


Is there anyway I can test the op-amp with a normal crap multimeter? (this is the only thing removable and easy to access, while caps would be a pain in the *** to remove all of them (also my multimeter doesn't even have capacitance test).


In the future I might get a ESR tester however I don't usually fix electronics, so I wouldn't have much use, only solder a few things from time to time, like a cap, pot, but it's really from time-to-time...


ps: Picture attached is from internet*
 

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I'm from PT too...


Thanks, I will search for the part on ebay, if they are cheap I will eventually buy one, else I will probably wait a bit and maybe get the newer Creative AE5 since Creative really improved quite a lot in quality and now actually use good DAC and so on but it's also sad that they ditched 7.1...


I'm totally happy with this old Auzentech however drivers are also dead for many years and I have been using custom drivers, but the guy who makes them "Daniel_K" sadly never updated anymore and so I can't also update windows, the updates keep breaking the drivers and the known workaround gets rid of the nice CMSS 3D option which is a must 4 me...




The only thing I tried in this sound card was cleaning, spraying contact cleaner all over the place, brush it with a toothbrush, then oil it with WD40 and removed the excess, but sadly it's the same, didn't improved anything, only look shiny new...😎
 
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