Yamaha CP70

[Kerry Cooper]

Les,

 

I have attached the tuning graph for the CP70B. There were two models, the
CP70 & the CP70B. the difference was the scaling and the 'B' had the
transformer as part of the power cord. These instruments should always be
tuned with an amp, as the pick-ups hear a different harmonic. I tuned the
first one in Australia and had been looking after many CP70Bs and CP80s
until the digital pianos took over. They can be tuned successfully by ear,
however the octaves must be expanded quite a lot. They are known to break
the covered strings on a regular basis, and I stocked many replacement
strings for such pianos.

 

Best of luck.

 

Kerry Cooper ARPT

Brisbane Piano Centre

ph:    +617-3809-0652

Fax:  +617-3809-4699

email: brispiano at optushome.com.au

 

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Leslie Bartlett
Sent: Monday, 21 May 2007 7:07 AM
To: pianotech at ptg.org
Subject: Yamaha CP70

 

I'm scheduled to tune a Yamaha CP70 in a week. I've never seen one of these
things. I'll have an hour and a half, and it's supposed to be a "clean up"
tuning.   Can anyone give me any info on these things?

les bartlett 
houston 

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