Casio ctk 611 keyboard error

SOURCE: MIDI Keyboard note delay problem, not latency problem PLEASE HELP

You are suffering from midi latency. There is a good article about this at www.thewhippinpost.co.uk/latency.htm There is also some good advice there.

SOURCE: Notes not holding

The key contacts need cleaned.

SOURCE: My Casio Privia PX-110 is playing two notes at

IF every key sounds like it is doing that, you may have two voices selected with one of them being transposed.

You may have an "effect" turned on that generates a chorus, layered or multiple voice sounds.

SOURCE: I connected my Casio CTK

Oh, oh... that is often called the "Dreaded MIDI Drone".

There ccan be more than one causes, however two of those are this:

1. The receiving device either does or does not respond to the note off command or only responds to the note on command with zero velocity, which is also now interpreted as note off. Check the MIDI implementation chart to determine this.

2. Two MIDI commands have merged without using a MIDI merger which makes sure ONLY complete MIDI commands are sent. If the commands are mixed, dreaded MIDI drone is assured.

SOURCE: Casio CTK-651 keyboard wont switch on

i want to repair the casio organ ctk 651 or ctk 731