Good day nairalanders

Please I would appreciate if I get link or directions to a solution on my hifi system.
It all started with a power problem nd I got it fixed at an exhorbitant fee of 15k

After the power issue I noticed that anytime I put it on after a while ( about 5 to 10 minutes ) system will be on but sound fades off

I love this hifi system nd I'd like to get it fixed.

I'd appreciate if I can get a very good technician to help out....if anyone has any solution or recommendation to a good techhician pls post here

Thanks everyone

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