Replacing chips on vintage synth is something you may run into eventually and can be a very satisfying procedure to do yourself - aided by the wealth of resources online. In this video Vintage Synthesizer Solutions outlines the process of taking the Juno 106 and its HS-60 sibling apart - explaining the operation of the boards, how to dismantle the machine and replace the defunct chips.
It might seem like a daunting task to replace the brain of your beloved synth, but can be done. Of course, if you're not sure, leave it to the professionals! If you're into this sort of thing, Bell Tone SYnth Works has a channel detailing lots of restoration procedures.
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Angry little feller
F9 Audio co founder
Self assembly too