Meatballfulton, that was incredibly helpful. Thank you so much. I went through each of the steps you suggested and everything checked out perfectly. I can't tell you how much I appreciate your help on this. I just bought the unit.

All the best to you...

Thank you for that reply.

Hello. I am looking to buy a used Yamaha synth (MO8) for my wife for Christmas and know absolutely nothing about synthesizers - how to test them, what problems to look for, etc. I am looking at one today and wondered if someone had tips for quickly testing the main functions of the unit. Thanks in a...