I was given a musical keyboard with optimus md1600 on the center, is this a brand or just the model. Who makes it? Yamaha? What's it worth? It seems the left speaker is not sounding right so I am wondering if it worth repairing it before I invest a lot into it. Please help.

Asked by ziggy on 11/21/2013 1  Answer

ManualsOnline posted an answer 11 years ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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