Disklavier

I do not know if my memory is accurate but when I got my dkv about 6 
years ago the same or similar error message appeared. It turned out the 
cabling to the sensor was a little loose where it is plugged in. The 
tech unplugged and plugged the cable and the message went away.



pilotjim99@... wrote:

> It's a wonderful Christmas Eve,
>  
> FedEx arrived with a new power supply circuit board from Yamaha. (not 
> the entire black box)   I didn't have to go to the dealer to borrow 
> parts.  It took 3 meticulous hours to disassemble and reassemble the 
> black box... digitally macro photographing same and marking cables and 
> plugs as I went to make sure I had the ability to reverse the process 
> without error.  (The power supply is tucked way up and in the black 
> box and the MIDI circuit board has to be removed in order to even get 
> to the power supply)
>  
> I just powered up the piano and it works!  It's playing Silent Night 
> as I type.  My wife is speechless as she thought I was going to blow 
> up the piano after she saw all of the wiring harnesses hanging just 45 
> minutes ago.
>  
> One minor problem; when I power up the piano I get the message:
>  
> Sensor
> Led On Error
>  
> When I push Play, the piano plays normally and the error message goes 
> away.  What does this error message mean?
>  
> Thanks again to the group members who helped me through this process.  
> I appreciate all of your input.
>  
> Merry Christmas and Happy New Year
>  
> Jim
>