Casio PX-780M User Manual (English)

Questions and Answers:

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Jennifer HernandezJul 30, 2025
Why is the pitch off on my Casio Digital Piano?
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  Wesley NashJul 31, 2025
  If the pitch of your Casio Digital Piano is off, there are several potential causes: 1. The key setting might be something other than “440.0 Hz”. Change the key setting to “440.0 Hz”, or turn the Digital Piano off and then back on again. 2. The Digital Piano tuning might be incorrect. Adjust the Digital Piano tuning, or turn the Digital Piano off and then back on again. 3. A non-standard temperament setting might be in use. Change the temperament setting to “00:Equal”, which is the standard modern tuning. 4. Octave shift might be enabled. Change the octave shift setting to 0.
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donnabriggsAug 4, 2025
What to do if no sound from Casio PX-780M when pressing keys?
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  Deborah HallAug 4, 2025
  If you're not hearing any sound when pressing the keys on your Casio Musical Instrument, there are a couple of things to check: * First, make sure the VOLUME controller isn't set to “MIN”. Rotate it towards “MAX” to increase the volume. * Second, ensure that headphones or an adapter plug are not plugged into the PHONES jack. If something is plugged in, disconnect it.
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Ann JohnsAug 9, 2025
Why does playback stop when transferring song data to my Casio Musical Instrument?
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  Jonathan MillerAug 9, 2025
  If playback stops during song data transfer from your computer to your Casio Musical Instrument, it could be due to digital noise interrupting the data communication. This noise might come from the USB cable or power cord. To resolve this: 1. Stop song playback. 2. Disconnect and then reconnect the USB cable from the Digital Piano. 3. Try playing back the song again. 4. If the problem persists, quit the MIDI software, disconnect and reconnect the USB cable, restart the software, and try playing the song again.
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Julia ReillyAug 14, 2025
What to do if tones sound strange on Casio Musical Instrument?
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  Glenda ParkerAug 14, 2025
  If the tones or effects on your Casio Musical Instrument sound strange, and turning the power off and on doesn't fix it (for example, note intensity doesn't change with key pressure), the “Setting Backup” feature may be turned on. To resolve this, turn off “Setting Backup”, then turn the power off and back on again.
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Heather BallardAug 25, 2025
What to do if I cannot transfer data after connecting Casio Digital Piano to computer?
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  David BarnesAug 26, 2025
  If you cannot transfer data after connecting your Casio Digital Piano to a computer: 1. Check that the USB cable is correctly connected to both the Digital Piano and the computer. Also, ensure that the correct device is selected in your computer’s music software. 2. Turn off the Digital Piano, then exit the music software on your computer. Turn the Digital Piano back on, and then restart the music software.
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evansjamesSep 10, 2025
How to record chord accompaniment data on Casio if it doesn't work?
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  Beth WebbSep 12, 2025
  If you cannot record chord accompaniment data on your Casio Musical Instrument, the “Accomp MIDI Out” might be turned off. Turn on the “Accomp MIDI Out” to enable recording.

Casio PX-780M Specifications

General

Touch Response	3 sensitivity levels, Off
Sound Source	Multi-dimensional Morphing AiR
Maximum Polyphony	128 notes
Digital Effects	Reverb (4 types), Chorus (4 types), Brilliance, DSP
Pedals	3 pedals (damper, soft, sostenuto)
Tuning Control	A4 = 415.5Hz ~ 440.0Hz ~ 465.9Hz
Speakers	12cm x 2, 5cm x 2
Amplifier Output	8W + 8W
Display	LCD with backlight
Keyboard	88 keys
Recorder	2 tracks, 1 song, Approximately 5, 000 notes total
Metronome	0, 2, 3, 4, 5, 6 beats; tempo range: 20 to 255
Key Transpose	±2 octaves (-12 to +12 semitones)
Terminals	Pedal connector
Power Supply	AC Adaptor (AD-A12150LW)
Included Accessories	Music Stand
Tones	250 built-in tones: 18 grand piano tones, 14 electric piano tones, 14 organ tones, 16 strings tones, 4 bass tones, and others