In general, the A600 capacitors look to be stable and not obviously leaking - except for these two.The 47uF caps on the 12V and -12V input lines have dull joints, just about visible in this photo (and contrasting with the other caps nearby). Dust is also accruing around it, which is often a tell-tale sign of leakage, though it's uncertain here as dust is also collected on the higher plastic ledge.Nonetheless, I think these need replacing and I've ordered a full set for the board.
