Roland Print Head Question

[Rickey J]

I ordered a Roland DX7 Print Head From a Merchant Member. Come to find out they were out of stock and sent me one for a Mutoh instead. My question is will this work in my XR-640 or not? I know it's the same print head but I have concerns about if it has the same firing pattern. Does anyone have experience with this?
Thank you,

 

[Alpha Star]

If it has the correct manifold, I'd be putting it in. If not, I would not be removing the incorrect one.