Disklavier

Greetings,

I just joined this group. Hopefully, I am behaving O.K.

A am a resident of Japan. In 2017, I bought a used Yamaha C3 with a Disklavier, PPG100R which translates to a US DKC100R. The piano is relatively old. However, the technician who went with me told me it was in pristine condition. Indeed it is, no scratches and the sound is good, good enough for me to practice.

When the movers brought in the piano, they tested the playing of the Disklavier by inserting a prerecorded disk of classical music. So far, so good.

When I tried to record, at first, all I was able to do was record the activation of the pedal, they keys would not record. Later, I was able to play some notes. However, the playback was sporadic, only a few of the notes played back.

Somehow, I think that the piano keys are not properly registering with the control unit. I have been able to get into maintenance mode and test "Keyboard Measurement" routine. No problems there. I am not sure where I can go from here. Although I have learned to tune the piano, I am reluctant to take things apart, unless.

Any ideas/suggestions are welcome.

Thanks,

Bill

When we moved my DC6A to a new home I had a similar problem which was caused by a broken wire from the keyboard to the electronics. It was one wire of many in a flat cable. Fortunately, there was enough extra cable so that I could splice the wire with a small wire nut. Apparently, the movers broke or pinched the wire during assembly or disassembly.Hope your problem is as simple,Glen Perry
In a message dated 4/16/2019 12:57:45 AM Central Standard Time, disklavier@yahoogroups.com writes:

 
 

Greetings,

I just joined this group. Hopefully, I am behaving O.K.

A am a resident of Japan.  In 2017, I bought a used Yamaha C3 with a Disklavier, PPG100R which translates to a US DKC100R. The piano is relatively old. However, the technician who went with me told me it was in pristine condition. Indeed it is, no scratches and the sound is good, good enough for me to practice. 

When the movers brought in the piano, they tested the playing of the Disklavier by inserting a prerecorded disk of classical music. So far, so good. 

When I tried to record, at first, all I was able to do was record the activation of the pedal, they keys would not record. Later, I was able to play some notes. However, the playback was sporadic, only a few of the notes played back.  

Somehow, I think that the piano keys are not properly registering with the control unit. I have been able to get into maintenance mode and test "Keyboard Measurement" routine. No problems there. I am not sure where I can go from here. Although I have learned to tune the piano, I am reluctant to take things apart, unless.

Any ideas/suggestions are welcome.

Thanks,

Bill

Hi Bill

 I do not recommend erasing the EEP-ROM.
 All maintenance information is erased and has a negative effect.

 I would advise you to check following points.

If you can remove the keyboard lid, check the  sensor connector ( around 88C key)
reconnect the D-sub control cable.

Test mode--- Error history display ---Error message.

Maintenance mode ---Test play ----pp,---- Key No, and Velocity(V,v)

Hi bill

The key sensor is not working
Is the red Led light on below the keyboard?

The emission line start at gate array and  goes to key emission via hammer emission .
And return to gate array via hammer and key sensor.
Check the line cable and connection.