Roland MC-5534A digitally-controlled oscillator (DCO) chip.
The stock DCO chip appears as in the top photo. Because the original Roland chips are prone to failure (in large part due to the black resin coating over the components), we sell brand new clone chips made by Analogue Renaissance (lower photo). These clones sound identical to the originals, and are much more robust physically.
Installation of this part requires soldering.
This part is NEW.
This item is non-returnable.
Click on photo to enlarge