Electronic Keyboard Goes Out Of Tune

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Discussion Overview

The discussion revolves around an issue with a Yamaha electronic keyboard that has gone out of tune, specifically being 1% flat. Participants explore the reasons behind this phenomenon, the tuning mechanisms of the keyboard, and potential explanations for the observed behavior.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant notes that their Yamaha electronic keyboard is 1% flat and expresses surprise that digital devices can go out of tune.
  • Another participant inquires about the model and year of the keyboard, suggesting that the adjustment device might be failing.
  • There is a question about whether the keyboard has an adjustment to deviate from standard tuning, possibly for compatibility with older instruments.
  • The original poster provides the model (Yamaha PSR-E473, 2024) and mentions that they have to set the tuning to A 444 to match other instruments.
  • One participant humorously suggests checking the battery, while another references specific functions in the user manual that could affect tuning.
  • It is reported that after 23 days, the keyboard spontaneously returned to A 440, leading to speculation about the cause.
  • Some participants propose various theories for the tuning issue, including potential physical problems with components and the influence of external factors like sunspots.
  • There is a suggestion to test the keyboard's sensitivity to physical vibrations as a diagnostic measure.
  • One participant humorously speculates about the nature of the failure cycle, comparing it to a square wave.

Areas of Agreement / Disagreement

Participants express a range of theories and observations regarding the tuning issue, with no clear consensus on the underlying cause or the reliability of the keyboard's tuning mechanisms.

Contextual Notes

Participants reference specific functions in the user manual and suggest checking settings, but the effectiveness of these suggestions remains uncertain. The discussion includes speculative ideas about external influences and physical issues without resolving these uncertainties.

Hornbein
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One of my Yamaha electronic keyboards has gone out of tune. It's 1% flat. It's not a problem -- I just tune it up so I'm not looking for a cure-- the point is I'm surprised that this is possible. I thought digital musical devices couldn't go out of tune.
 
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Interesting.
What is the model, and what year was it made.
How do you tune it up, maybe that adjustment device is failing?
 
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Yes.. Does it have an adjustment to put it out of standard tune (perhaps to play with elderly "more tender" instruments? It is hard to bend a quartz crystal by 1%.
 
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Baluncore said:
Interesting.
What is the model, and what year was it made.
How do you tune it up, maybe that adjustment device is failing?
Yamaha PSR-E473, 2024. It has many adjustable features, including tuning. I have to set A 440 to 444 to get it to conform to the rest of the world. It just started doing that recently.

It might have been the computer that I get my music from but no, my other keyboard is still in tune.
 
Top up the battery? :oldbiggrin:
 
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Today after 23 days the keyboard spontaneously returned to A 440.
 
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Hornbein said:
Today after 23 days the keyboard spontaneously returned to A 440.
Sunspots. It's always because sunspots.
 
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Hornbein said:
Today after 23 days the keyboard spontaneously returned to A 440.
Most (pseudo-scientific) biorhythm models, use three cycles: a 23-day physical cycle, a 28-day emotional cycle, and a 33-day intellectual cycle.
The 23-day time suggests there is something physically wrong with the components, the connections or solder joints. Check it for physical vibration sensitivity, by tapping the electronics gently with a drumstick. Pick your tune.
 
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  • #11
Hornbein said:
Today after 23 days the keyboard spontaneously returned to A 440.
Now we wait to find out if the failure cycle is a square wave.
 
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