Post by ninworks on Mar 1, 2021 9:58:04 GMT -5
My old Yamaha KX88 MIDI controller keyboard stopped MIDI-ing. It has sat in a case for most of the last 5 years. I got it out recently and set it up to trigger some sample libraries I had installed on my computer. It's not working properly. I have MIDI activity indicators on my software and it shows a constant fluttering MIDI signal coming in off the keyboard without doing or playing anything. It looks like SYSEX or controller data because it is constant and the volume control on the software is being held all the way down. I'm thinking it's transmitting MIDI Controller 7 (Volume Control) and it's not supposed to do that by itself without any sort of manual or sequenced manipulation. I got out my old DX7 and hooked the MIDI from it up and everything works perfectly with the software so it has to be the keyboard controller.
The KX88's were made in 1984 and are built like a tank. It weighs 63 pounds. Weighted keys with a great action. I was able to download an operator's and service manual for it. The service manual shows some on-board tests that can be ran from the front panel of the unit by pushing different combinations of buttons. These things have a battery for program storage and it probably needs replacing at least. I'm going to run the diagnostics on it to see if it will give me any idea of what the problem is but I'll probably end up taking it to a tech to have it fixed anyway. I'm electronically challenged when it comes to complex circuits so I'm better off leaving it to someone with the knowledge and experience.
These things are still in pretty high demand and fetching about $500 on the used market. This thing is 37 years old and has worked perfectly until recently. They certainly don't build electronic gizmos like THAT anymore.
The KX88's were made in 1984 and are built like a tank. It weighs 63 pounds. Weighted keys with a great action. I was able to download an operator's and service manual for it. The service manual shows some on-board tests that can be ran from the front panel of the unit by pushing different combinations of buttons. These things have a battery for program storage and it probably needs replacing at least. I'm going to run the diagnostics on it to see if it will give me any idea of what the problem is but I'll probably end up taking it to a tech to have it fixed anyway. I'm electronically challenged when it comes to complex circuits so I'm better off leaving it to someone with the knowledge and experience.
These things are still in pretty high demand and fetching about $500 on the used market. This thing is 37 years old and has worked perfectly until recently. They certainly don't build electronic gizmos like THAT anymore.
