How to use chords on my casio ca-110 keyboard

From CASIO, duhhh ?

There is likely a 3mm connector. Get an adaptor from what you have to the 1/4" size. They're readily available and pretty cheap.

Turn off "Casio Chord" &/or autoaccompaniment

if you don't want to wait, you can go to radio shack and get a universal adapter for a bit more, but it should work no problem.
http://www.amazon.com/HQRP-Adapter-compatible-Keyboards-Replacement/dp/B004TXDL3C

Read your manual regarding "fingered chords" and similar subjects. It sounds like you are in a single fingered chord mode...

I would check your fingering... You MAY be late in hitting a particular note and the using auto chord... this can cause the problem. Another thing is if notes are hit with different velocity that can affect the sound. Sometimes certain voices have VELOCITY switching which actually changes the voice depending on the velocity you hit a note.

Casio Chord is internal to the keyboard and doesn't come out on MIDI. Transpose is similar and while the button may send a MIDI transpose type signal out, the notes will not transpose in your computer...

More info. If you are chording on the left half of the keyboard, SOMETIMES they allocate or have the option to select a different voice for the part where chords are played. For these, you have to ALSO select a voice for that half of the keyboard. If you don't select a voice, then you would not have anything sounding.

In Casio Chord mode, the bottom keys up to the second F plays Bass Chords. The Keyboard is just putting the keys you play back into bass when you get up that high. If you read along the plastic edge above where they keys come out of the keyboard, it shows you where the Chord keys end and the Keyboard begins. If you want use of all the Octaves, slide the power switch to the first setting (normal).