Sony STR2400ES repair in Cape Town

[matthieup]

Hi,

As the title says, my Sony STR 2400 ES is in need of repairs. Lately the HDMI ports have been dying on me 1 by one (in fairly quick succession).
I'mnow only left with 1.

First of all does anyone now of something i can check to diagnosae the issue, or where can i take it in Cape Town to be assessed?

Thanks

 

[Marakasmalan]

 

[Dexter]