Our Casio Celviano AP-620 won't boot up anymore. It gets stuck with a "PLEASE WAIT" message on the screen. We have tried unplugging it for a few days, resetting the factory defaults, but nothing seems to work. Can anyone help us?

If your Casio Celviano AP-65 turns on but there is no sound, there could be several possible causes for this issue. Here are a few steps you can try to troubleshoot the problem:

1. Check the volume: Make sure that the volume on the piano is turned up and that the volume control on any external speakers or amplifiers is also turned up.
2. Check the connections: Make sure that all cables and connections are securely plugged in and that there are no loose or damaged cables.
3. Check the power supply: If the piano is plugged into an outlet using an extension cord or surge protector, try plugging it directly into the wall to eliminate any issues with the power supply.
4. Check the internal speakers: If the piano has internal speakers, make sure that they are not damaged or malfunctioning.
5. Check the settings: Make sure that the piano is set to play through the internal speakers or any connected external speakers or amplifiers.

If these steps do not resolve the problem, it may be necessary to have the piano inspected by a professional. They will be able to diagnose the issue and recommend the appropriate repair.

mostly caused by faulty tone generator ic. get a qualified tech to confirm this

Hi :). Are you referring in Casio Cleviano model AP-33? Because i try to search for Casio Cleviano but there is no result. the only available is the model for Casio Cleviano model AP-33.
Casio AZ 1 Service Manual Parts List Page 6 . I hope this link can help you to find out the manual for your casio model. thanks

Only newer models with class-compliant USB (made last 12 months) can connect to MACs - & IPADs and PCs.
Older models require drivers available only for Windows.

It is 3 years/5 years warranty depending on your country.
Call CASIO warranty or contact dealer.

Jeremy hi
you must open the piano and change the headphone jack

Could possibly power supply problem. If you're running through a multi-board, try running directly into the outlet. Failing that, try another power outlet altogether.
The Celviano range aren't real power hoggers once going, but initialising and starting up takes a bit of omph.

The main circuit board has failed. Will Cost about 300-400 dollars to replace if not still under warranty.

Yamaha pianos go through a self test on start up. This could indicate a problem on the main motherboard.

Try a hard reset.

Hold down top C key while turning on.

Wait for it to start up, if it still freezes its time to take it to the repair shop.

What has happened is that one signal wire of the matrix that scans the keyboard has opened up. Each key has two contacts. One closes before the other and that is how they measure key velocity to control the loudness for piano sounds for example. When one contact doesn't work, often the sound is set to MAXIMUM key velocity resulting in MAX loudness. The key contacts are scanned digitally in groups of usually 8 or 12 and, for instance, every C key has a single line attached and then every group of 8 or 12 has a second line and then there are two complete sets of these to implement the velocity sensing. Your unit probably has either a break in a cable or possibly a cable connector that has failed or not seated OR worst case, the circuit board under the keys has a crack breaking one wire or circuit trace going to that section of the keys. The problem will require opening the keyboard to repair. If you are not electronically adept, besst to take this to a repair shop.