Electrical Diagram for Casio Celviano Piano

Hello,
I'm currently working on repairing my Casio Celviano AP-220BK piano, which has stopped working. I've traced the power supply to the transformer, and I'm getting 12V output from it. However, beyond that point, I'm not getting any voltage.
As I'm not very experienced with electronics, I'm hoping to find the electrical diagram (schematic) for this piano model. I believe it would greatly assist me in troubleshooting and identifying any potential issues.
If anyone has access to the electrical diagram for the Casio Celviano AP-220BK or can provide guidance on where I might find it, I would greatly appreciate your help.
Thank you in advance for any assistance you can offer.
Best regards,

There is an AP-200 service manual here - that may use the same electronics??

Replace all slightly domed lid e-caps (outgassing) with same or equiv and follow repair manual.

Thank you so much for your response While it may not be an exact match for my piano model, it definitely comes close and will be extremely helpful in my troubleshooting efforts. Your assistance is greatly appreciated!
Best regards.