When i press the "music data base" button, nothing

Peter, punched serial # into Data base,Your guitar was made at the
Nashville Plant, TN, USA
January 15th, 2002
Production Number: 554
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Single and Finger,is chords mode.
In Single,by press one key (eg:A) then chords A is heard,and so on.
In Finger,you must press 3 keys.Example: G-B-D,then you heard G chord. D-F#-A is D chord.
In Finger,lets say you press A chord and want to change to C chord by press one key C only,there's nothing change untill you press C-E-G.
Low, is for chords octave low.
Chords Off,no chords can be play,it mean overall full piano mode..
Single,Finger,Low, can be activate with Sync Start button.

Hello, You may want to reset your machine, all data and pre loaded programs, for this you must turn on your M50 press the global mode button, click on the top arrow next to (basic) select option 2, load pre-preloaded demo data, you then choose all (PCG and demo songs). press OK. Your Korg will re install all factory samples, data and settings. Once completed It will then instruct you to turn off your machine. give it a minute or so to self upgrade before turning it back on, once you turn it back on you should see updating panel notifications right and left, you should be able to use all of the sounds and combi's available for M50. that's a factory reset. I hope this helps, Have a great day.

You don't need to reset factory.
You just need to change the setting of LOCAL CONTROL.
Lets start :::
While holding TONE / SETTING button,press key D#7 at 7th octave (highest octave on the right hand). Then release. That's all.
Then the sound must be heard..

You don't need to reset factory.
You just need to change the setting of LOCAL CONTROL.
Lets start :::
While holding TONE / SETTING button,press key D#7 at 7th octave (highest octave on the right hand). Then release. That's all.
Then the sound must be heard..

FACTORY RESET:

1. Press the [GLOBAL] button to enter Global mode.
2. Press the [EXIT] button.
3. Press the [UTILITY] button
4. Select "Load Preload Data," by using the ClickPoint [?] button, and press the [CENTER].
5. Choose "Kind," (All)
6. Press the [MENU/OK] button.
7. When a dialog box will ask you, press the [MENU/OK] button

To perform a factory reset on the Zoom R16 recorder, follow these steps:

1. Power off the Zoom R16 by pressing and holding the [STOP] button.
2. While holding down the [STOP] button, press and hold the [REWIND] button and the [PLAY] button.
3. Continue holding all three buttons for about 5 seconds until the display shows "Factory Reset."
4. Release all three buttons and the unit will automatically restart and restore all factory settings.

Note: Performing a factory reset will erase all user data and settings, so be sure to back up any important data before proceeding.

The original factory settings of the AW4416 can be restored by recalling Scene Memory '00'.

1) Press the [SCENE] button in the 'AUTOMATION' section.

2) Press the [F1] button to display the 'Scene Mem' page.

3) Turn the (DATA/JOG) dial to select '00.Initial Data' on the screen.

4) Press the yellow [ENTER] button.


Reference: Operation Guide, p. 203

The key contact has gotten contaminated. They are a black conductive rubber pill pressed against circuit traces on a board bellow the keys. Remove that key and maybe others to get at the contacts in silicone strips. Clean ONLY with 99% isoprophyl alcohol and Q tips. Clean both the pills (two per note) and the circuit traces they touch. You have to release the spring at the back of each key to remove the key.

You don't tell us the model, but most have a "demo" button which is first pressed and then there sometimes is a start and stop button tto control it.