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Roland E-20 tuning problems...

I have an E-20 the will not tune to 440. I try but it will go from Ab to Bb but wont stop on A. Any suggestions ????

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Keyboard has internal battery. change it and it will retain memory of all settings + tuning. should'nt be too hard to dissasemble and get inside.

Posted on Apr 14, 2009

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I tune my guitars at 400 using a clip on tuner,which I believe is concert pitch I've recently bought a 5 string blue grass banjo .I set tuner to c mode to tune banjo is this correct


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HI, I have a Roland Juno GI, (5 months old), have not programmed anything into it or changed any settings. However, when I started it today it was flat by 50 cents. I was sure of this by checking a D or G...


It sounds like it is transposed. Look for the transpose function in your user manual. It shifts the keys by half notes either up or down. I would be surprised that factory reset would not clear the transpose setting. First, realize that these keyboards are controlled by a crystal oscillator and they just don't drift enough to shift even one cent worth.

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Jul 19, 2011 | Roland JUNO-Gi 61-Key Mobile Synthesizer...

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HOW TO CALIBRATE KORG DT-10 TUNER TO 440 TUNING


From the user manual:

While the setting is shown in the display, press the CALIB key to

set the calibration.

Each time you press the key you will cycle through the following

settings.

0: 440 Hz 2: 442 Hz 4: 444 Hz 8: 438 Hz

1: 441 Hz 3: 443 Hz 5: 445 Hz 9: 439 Hz

When you have made the desired setting, wait approximately two

seconds without pressing the key.

The indication in the note display will blink three times, and the

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Got a Roland GW-8. I've had it for almost a year and a half. The problems consists on the fact that the keyboard gets out of tune while playing. Its not even a full note. After that I have to shut it...


OK... It is literally impossible for the unit to "go out of tune" as it is crytal controlled... HOWEVER what is probablly happening is the PITCH BENDER is getting into the mix somehow.
If the centering on the pitch bend control is sticking or is loose, this would likely be the problem.
Do some tests with the pitch bender to see if you can detect either a mechanical or offset condition of the control.

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My roland discover 5 wont tune - not to default 440Hz or any others - wont stabilize - and the bottom corner of touchscreen where it says"440 -Do it" for resseting to default concert pitch dowant work/...


The unit may have the problem that befalls the Palm Pilots where something gets under the escutcheon and presses on the touch screen at the edge which overrides any other inputs.

Another possibility is a stuck button. The buttons are usually scanned as a matrix and at startup if a button is stuck that can make unit unresponsive.

Without a logic analyzer and the firmware listing you likely would not get far if one of the logic chips has gone bad unless it can be found using freeze mist and heat gun..

Stuck buttons or touch screen is usually easily found without schematic.

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