The receive on my IC-735 is gone quiet

I have a problem with my Icom IC-735. The RX is gone very quiet. I can still hear stations but the needle hardly moves at all. I am still able to TX and being heard quite well in G and EU but there's something amiss with the RX.

I read on the internet that poor RX can be related to a dry or cracked solder joint where the RX socket meets the main unit board. So I re-touched all the joints and still no improvement.

I love the IC-735 and especially the sensitivity of it. I would love some help in diagnosing and fixing this problem. Any help is welcome.