Disklavier

We have a DGH1BII with a DKC100R control unit that we recently had moved to our new house.  The petal unit was disconnected by the movers and re-assembled, but now we are getting the "Piano Power Off" (THERMOSTAT) message at power up on the control unit.  Prior to the move, the piano played perfectly.  How can I clear this message or reinitialize the piano?  I would like to attempt a few procedures or adjustments before I have to make arrangements for a service technician's visit.  Thanks in advance.

Bill M.

The same thing happened to my DC6A when it was moved only I got a different 
 error message. With the help of these fine people I learned that a wire 
was cut  or pulled apart. I was able to repair it by splicing the wire 
together with a  small wire nut. 
I hope this helps,
 
Glen P.
 
 
In a message dated 9/14/2015 2:05:36 P.M. Central Daylight Time,  
disklavier@yahoogroups.com writes:

 
 
 
 
We have a DGH1BII with a DKC100R control unit that we  recently had moved 
to our new house.  The petal unit was disconnected by  the movers and 
re-assembled, but now we are getting the "Piano Power Off"  (THERMOSTAT) message at 
power up on the control unit.  Prior to the move,  the piano played 
perfectly.  How can I clear this message or reinitialize  the piano?  I would like 
to attempt a few procedures or adjustments  before I have to make 
arrangements for a service technician’s visit.   Thanks in advance. 
Bill M.

Hi Bill,

The pedal lyre is electrically connected to your piano with a large cable with a round connector on the end of it.

If the cable was not re-connected after the move, then you would get this thermostat message.

You could also get this message if the cable or connector were damaged. 

Turn off the piano, then check the cable connection. If it is not connected, connect it. If it is connected, then disconnect it and look at the pins in the connector. If any are bent, straighten them out and reconnect the lyre cable to the piano.

Bill
Love God. Love People. Make a difference.


On Sep 14, 2015, at 11:50 AM, 'Metro, Bill' bmetro@... [disklavier] <disklavier@yahoogroups.com> wrote:

We have a DGH1BII with a DKC100R control unit that we recently had moved to our new house.  The petal unit was disconnected by the movers and re-assembled, but now we are getting the "Piano Power Off" (THERMOSTAT) message at power up on the control unit.  Prior to the move, the piano played perfectly.  How can I clear this message or reinitialize the piano?  I would like to attempt a few procedures or adjustments before I have to make arrangements for a service technician’s visit.  Thanks in advance.

 

Bill M.

Focus your attention on the pedal drive unit and its cable going to the piano. I believe you will find the problem there.

It sounds like you have removed the key drive unit cover at the treble end of he piano. If so, the board is the PK CTRL board. I am not sure if any of the LEDs on the board would be on when the piano is on. Email me a close picture of the board and I can check to see what status the LEDs should be when the piano is on.

Bill
Love God. Love People. Make a difference.


On Sep 16, 2015, at 3:26 PM, 'Metro, Bill' bmetro@... [disklavier] <disklavier@yahoogroups.com> wrote:

Bill,

 

Thanks for the tip.  I’ll give your recommendations a try this weekend when I have some time and let you know if I am successful.  I have already removed the cover from the solenoid control box and I noticed that there are two LEDs on a circuit board.  Neither one blinked or turned on after power up so I’m thinking that either the cable pins are not making a good connection in the socket as you have mentioned, or it is possibly a more severe power problem.  In any event, I’ll report back with any progress.

 

Thanks,

 

Bill

From: disklavier@yahoogroups.com [mailto:disklavier@yahoogroups.com] 
Sent: Tuesday, September 15, 2015 7:34 PM
To: disklavier@yahoogroups.com
Subject: Re: [disklavier] "Piano Power Off" (THERMOSTAT)

 

 

Hi Bill,

 

The pedal lyre is electrically connected to your piano with a large cable with a round connector on the end of it.

 

If the cable was not re-connected after the move, then you would get this thermostat message.

 

You could also get this message if the cable or connector were damaged. 

 

Turn off the piano, then check the cable connection. If it is not connected, connect it. If it is connected, then disconnect it and look at the pins in the connector. If any are bent, straighten them out and reconnect the lyre cable to the piano.

Bill

Love God. Love People. Make a difference.

 


On Sep 14, 2015, at 11:50 AM, 'Metro, Bill' bmetro@... [disklavier] <disklavier@yahoogroups.com> wrote:

 

We have a DGH1BII with a DKC100R control unit that we recently had moved to our new house.  The petal unit was disconnected by the movers and re-assembled, but now we are getting the "Piano Power Off" (THERMOSTAT) message at power up on the control unit.  Prior to the move, the piano played perfectly.  How can I clear this message or reinitialize the piano?  I would like to attempt a few procedures or adjustments before I have to make arrangements for a service technician’s visit.  Thanks in advance.

 

Bill M.

This should be a caution to all grand piano Disklavier owners when having a mover transport your piano and why you may want to consider having a very experienced piano mover do the job separately from the rest of your household goods.

The cable connector that connects the pedal lyre to the underside of the piano is round.  What do people do with round connectors?  Twist them!  NO!  This cable has a collet that one turns to loosen the cable.  Then the cable is PULLED down, not twisted, to disconnect the pedals.

An example would be like an old lamp cord with a round plug.  You pull it out of the wall outlet, not twist it.  Hopefully if this were to happen the pins could be straightened.

Also, there is a little slot on the side of the cover that covers the pedal solenoids.  You do not need to remove it to check pedal adjustment.  Just peer through that slot while depressing the pedal, and a little red LED should come on at the bottom of the stroke providing you actually have the Disklavier turned on.  You do need to remove the cover to actually adjust the pedal solenoid position. 

Carol Beigel

Congratulations Bill! You are now an official Disklavier technician!!

Bill
Love God. Love People. Make a difference.


On Sep 22, 2015, at 4:17 AM, 'Metro, Bill' bmetro@... [disklavier] <disklavier@yahoogroups.com> wrote:

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Hi Bill,

Success!  Your advise was spot on! 

The moving team twisted the multi-wire cable bundle that connects the pedal lyre to the piano completely out of the 16 pin connector.  See attached photo.  I couldn't see this damage because it was all contained inside the medal socket assembly.  

Everyone should be reminded to first loosen the twist collar (counter clockwise) that holds the cable connector in place before pulling straight down on the plug and cable to eventually remove the pedal lyre.

My challenge was then trying to carefully match the 16 small wires back to their appropriate positions on the plug, then soldering and protecting each wire with new heat-shrink tubing.  A very tedious process requiring more hobby skills than piano technician skills.

I removed the female plug holder and four screws from the piano and documented all of the wire colors per pin location.  The plug pins are marked 1-16 and their orientation is mirror imaged on the male side of the plug.

It took me several days and a lot of patience to fix but our piano works wonderfully again.

Thank you for your help and this great Disklavier Group!

Bill

<image1.JPG>



On Sep 16, 2015, at 10:00 PM, Bill Brandom billbrando@... [disklavier] <disklavier@yahoogroups.com> wrote:

 
Focus your attention on the pedal drive unit and its cable going to the piano. I believe you will find the problem there.

It sounds like you have removed the key drive unit cover at the treble end of he piano. If so, the board is the PK CTRL board. I am not sure if any of the LEDs on the board would be on when the piano is on. Email me a close picture of the board and I can check to see what status the LEDs should be when the piano is on.

Bill
Love God. Love People. Make a difference.


On Sep 16, 2015, at 3:26 PM, 'Metro, Bill' bmetro@... [disklavier] <disklavier@yahoogroups.com> wrote:

 
Bill,

 

Thanks for the tip.  I’ll give your recommendations a try this weekend when I have some time and let you know if I am successful.  I have already removed the cover from the solenoid control box and I noticed that there are two LEDs on a circuit board.  Neither one blinked or turned on after power up so I’m thinking that either the cable pins are not making a good connection in the socket as you have mentioned, or it is possibly a more severe power problem.  In any event, I’ll report back with any progress.

 

Thanks,

 

Bill

From: disklavier@yahoogroups.com [mailto:disklavier@yahoogroups.com] 
Sent: Tuesday, September 15, 2015 7:34 PM
To: disklavier@yahoogroups.com
Subject: Re: [disklavier] "Piano Power Off" (THERMOSTAT)

 

 

Hi Bill,

 

The pedal lyre is electrically connected to your piano with a large cable with a round connector on the end of it.

 

If the cable was not re-connected after the move, then you would get this thermostat message.

 

You could also get this message if the cable or connector were damaged. 

 

Turn off the piano, then check the cable connection. If it is not connected, connect it. If it is connected, then disconnect it and look at the pins in the connector. If any are bent, straighten them out and reconnect the lyre cable to the piano.

Bill

Love God. Love People. Make a difference.

 


On Sep 14, 2015, at 11:50 AM, 'Metro, Bill' bmetro@... [disklavier] <disklavier@yahoogroups.com> wrote:

 

We have a DGH1BII with a DKC100R control unit that we recently had moved to our new house.  The petal unit was disconnected by the movers and re-assembled, but now we are getting the "Piano Power Off" (THERMOSTAT) message at power up on the control unit.  Prior to the move, the piano played perfectly.  How can I clear this message or reinitialize the piano?  I would like to attempt a few procedures or adjustments before I have to make arrangements for a service technician’s visit.  Thanks in advance.

 

Bill M.