[moons]

Hello,
I have a Kawai K1 rII instrument. Unfortunately, it's broken. Makes very strange noises, does not hold tuning. I found a very similar problem on the internet. the Kawai KTG-001 processor is broken. Are these parts still available?
Pozdr. Mirek

[michaelkunz]

Dear Mirek,

sorry, but there are no more spare parts available for the K1 series products after more than 25 years.

[Chris]

If the tuning changes strangely, it could also be the xtal circuit that generates the main clock signal. I'd try to change that, too.

[moons]

sorry for not answering for so long. I noticed that kawai only plays well on sounds that don't use PCM waveforms. If using PCM, the sound from the middle of the keyboard is detuned

[Chris]

I would still check if the oscillator runs stable. This rather sound like a cloking-problem to me. Or bad solderings (cold junctions) on the data-bus. Check the PCB(s) with a magnifier for bad junctions and re-solder them. Works wonders sometimes.