With no octave keys pressed the wx5 is playing an octave too low

Reprogramming a Yamaha WX5 Electronic Wind Instrument (EWI) typically involves adjusting settings, assigning functions to different keys, or customizing parameters to suit your preferences. Here's a general guide on how you might reprogram a Yamaha WX5:

1. Access the Menu:
   • Turn on your Yamaha WX5.
   • Navigate through the menu options using the buttons or controls on the instrument. Refer to your WX5's user manual for specific instructions on accessing the menu.
2. Select Parameter to Edit:
   • Once in the menu, find the parameter you want to edit. This could include things like breath sensitivity, pitch bend range, or assigned MIDI channels.
3. Adjust Parameters:
   • Use the controls provided on the WX5 to adjust the parameters. This might involve turning knobs, pressing buttons, or using a combination of controls.
4. Save Changes:
   • After making your adjustments, make sure to save your changes. The WX5 typically has a save or store function within the menu. Confirm the changes and save them to the instrument's memory.
5. Refer to the Manual:
   • Consult the user manual for your specific Yamaha WX5 model. The manual will provide detailed information on navigating menus, adjusting parameters, and saving changes.
6. Connect to a Computer:
   • Some advanced customization may require connecting your WX5 to a computer using MIDI. You can use Yamaha's dedicated software, if available, to reprogram certain parameters.
7. Use External Sound Modules:
   • If you're using external sound modules or synthesizers, some customization may need to be done on those devices as well. Refer to the manuals for your MIDI equipment to ensure compatibility and proper configuration.
8. Explore Advanced Settings:
   • Depending on your proficiency and the complexity of your WX5 model, you might explore more advanced settings like custom MIDI mapping or adjusting sensitivity curves.

Remember to approach reprogramming with caution, especially if you are not familiar with all the settings. Make note of the default settings before making changes, so you can revert to them if needed.
Always refer to the user manual specific to your Yamaha WX5 model for accurate and detailed instructions on reprogramming and customization. If you're unsure or uncomfortable with the process, consider seeking assistance from Yamaha support or experienced professionals in electronic wind instruments.

What kind of key, please?

Whether it happens to all of the key?
If yes, transpose setting may have changed. Change the setting to normal (0).
If the normal transpose, but tuning is still not standardized, check Pitch Setting.
To Restore Standard Pitch setting:
Hold down the A-1, B-1, C0 and C # 0 keys simultaneously and press any key between C3 and B3.
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If the above procedure is still no effect, try resetting the factory settings / Initialize overall: :
This is the steps:
Initializing the Settings
When you initialize the settings, all backup data stored to this instrument will be initialized and reset to the factory default settings.
Turn off the power to the instrument. Then, simultaneously hold down the C7 key (right-most key on the keyboard) and turn the power on again.

NOTICE
Do not turn off the power to this instrument while it is initializing the data in its internal memory (that is, while the button indicators are flashing).

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Notes:
If this instrument somehow becomes disabled or malfunctions, turn off the power to the instrument, then perform the initialization procedure.

You can use TRANSPOSE/SETTING button.
Each press the TRANSPOSE/SETTING button cycles through the setting screens. If you accidentally pass the screen you want to use,keep pressing the TRANSPOSE/SETTING button untill the screen appears again.
To lower by one octave,set the value to -12


You also can use PIANO SETTING button.
Find the setting in page 07 of PIANO SETTING.

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.

Take it in for repair. There may be a broken line for the velocity sensing of that octave of keys that is causing the velocity to be sensed low. The repair is NOT DIY if this is the case.

The key contacts are dirty. Each key has two contacts to implement VELOCITY sensing. When a certain one fails to contact, then the note is sounded at full volume. The contacts are conductive rubber pills pressed onto circuit traces. Clean only with 99% isoprophyl alcohol and Q tips very gently. It takes a LOT of dis-assembly and care to do this. It might be better to take this to a repair shop. There is a possibilty that a liquid was spilled into your keys as well. Cleaning is the answer.

usually If a certain note doesnot play the note before it is not seating correctly. Check all pads that they are sealing behind the bad notes, also make sure the octive key is sealing.

Thisis hard to troubleshoot... The keyboard insynths are usually scanned as a matrix... If a disconnect diode has failed, then wrong notes can be triggered. There is USUALLY rows of the diodes on the circuit board where the keys hit. There are usually TWO contacts per key in order to sense key velocity. The lkey contacts are usually conductive rubber pills pressed against circuit traces under the keys. One sometimes needs to clean these contacts using 99% isoprophyl alcohol and Q tips.
I would do further testing of ALL combinations of notes played together to see if possibly any others show up as that could point to a particular failure.

If this is the kind of organ with the wire sticking out of the key that makes contact with the bus bar to create the note you will have to make sure that key is operating the same as adjacent keys. The busbars have to be clean and the contact wires have to be clean. Sometimes when cleaning the wires they will spring out of place and not make contact with the appropriate bus bars. Check that key against the rest and see what you find. Hope this helps.