I had to replace some capacitors on my DX7IIFD because I had faint audio coming out of 1 of the 2 channels and perceptibly scratchy audio when playing the keys with a heavier pressure. Sometimes the degradation is gradual and it is possible to become habituated to the change in sound. Failing/failed caps often show up as a lack of 'sonic definition' whether slight or severe (that is of course when it gets so bad that you actually notice that it is there) I wonder if there are comparable, newer capacitors on the market today that are longer-lasting than their original counterparts? The beauty of soild-state technology, silicon, and pcbs is that they
may have the potential of working for hundreds of years if maintenance items are addressed and high humidity and power surges are avoided.
Good Luck Miks! Let's hope the oldies are still intact (sealed) and that you don't come across any more damaged traces. Thank you for your decision to document this re-cap for the future benefit of others.
