Using piano, organ or vibes blockcords for an hour or more the upper left part of the case gets fairly warm if not to say hot.
Is it hazardous to play blockcords for a longer period???

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Not quite sure what you mean by blockcords but I don't think what you play in any way relates to part of your keyboard overheating...

I push technichord button and chose "block" and play fingered chords with left hand and get very nice chords with only playing one note with right hand. You know George Shearing, that kind of sound. I would not really call it "overheating" but simply had never noticed that warmth on upper left case. Mz question is simply: does prolongued chord playing damage the board??

I take it that you do not experience heating if the block chord harmony function is not being used?
Keith

My KN7000 has been getting warm in back of the lid for several years. My tech told me it apparently is not hurting anything, and to turn it off during breaks, if I wanted to. I have never bothered to do that.

Hi Freddy
Slightly off your question but try 'Close' as well as 'Block' - it delivers a much better harmony....
I'll leave me keyboard on for a while and see if mine heats up as well.
Rog

Nope - mine doesn't heat up at all, thankfully...
Rog

My KN7000 has heated up since I bought it in 2005 and to the extent you can barely touch it with your hand. On querying this with the experts, I was told to ignore it and I do. However, during 'gig' breaks I always turn it off.

Audrey

Thank you all, you reassure me completely on the issue of "heating up", especially Audrey. Also a little special "hello" to Roger whose recommendation for using in
Technichord not only "block" but also "close" gives excellent results when looking for the George Shearing kind of sound.

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Page 202 of the manual clearly states that the instrument has a built-in power source that heats the cabinet to some degree and is not an indication of trouble.

I personally don't think there is a good comparison between "Block" and "Close" for a Shearing sound. "Block" is by far the better choice. "Close" is based on three notes of harmony whereas, "Block" is based on five notes, which is more what Shearing used. It also is a much more advanced and pleasing sounding harmony regardless of use.