Yamaha CS80

hey folks, got a question: i was looking at my PSU on my cs80 yesterday, and realized there's 2 4558 opamps. i have had these fail in 2 other yamaha synths, so i was thinking of replacing and socketing them, in the interest of preventative maintenance.  

while i have the PSU out, is there anything else in it i should consider replacing? i recapped the PSU when i got it, so those are not of concern.

thanks much. i know it might sound fussy, but its really my main synth now, so id like to keep it as healthy as possible.



      

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