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My casino keyboard won't come on with cord or batteries what's the problem. Ctk 491

Posted by Carla Kendall on


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Rabbit Brains

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  • Master
  • 575 Answers

You may have a blown fuse inside the unit. You will need to know how to disassemble it to replace. Good luck!

Posted on Nov 15, 2016


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Fred Yearian

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SOURCE: Need a manual for the Casio keyboard CTK 491 The

Try download here:

Posted on Jan 10, 2011


Andrew Conroy

  • 298 Answers

SOURCE: What kind of USB cable

You will need MIDI cable - widely available from good musical instrument (keyboard) stores and on the internet
For more information about using MIDI on your keyboard see the appropriate section in teh user's manual here

Posted on Feb 10, 2011


Joe Patch

  • 336 Answers

SOURCE: I'm trying to use my Casio CTK-491 as a midi keyboard with Garage Band. I'm using a usb midi cable but no joy. Is this a driver issue? If so I can't find the right one. Any help out there?

What is the model of your sound card?

Posted on Mar 12, 2013

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1 Answer

How to do a master reset on a ctk-491 keyboard, no sound from speakers

Does unit power up? A "dead" keyboard could likely be a defective "wall-wart" power supply BUT don't forget to check the AC outlet as well. If the function lights come on but no audio, I would 1st check with headphones but if that is also dead it may be related to either the slider style volume control on the keyboard, or internal electronic failures.

Mar 02, 2015 | Casio Ctk491 Midi Keyboard

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Facktory reset my casio ctk-491 keyboard, no sound from speakers

No sounds from speakers.
It may cause by power amp (or pre-amp) inside the CTK is defects.
Or maybe the setting for LOCAL in global mode is set to OFF.
Set it to ON.

Mar 02, 2015 | Casio Music

1 Answer

Keys not working

the drum sound working?
if yes , then check the conection between the keyboard to the mother board

Oct 21, 2013 | Casio CTK 491 61 Key Portable Keyboard

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I bought a usb to midi device for my Casio CTK-491, but none of my VST's or DAW's receive midi information from the keyboard, The programs see that there is a midi input and output but the computer...

what program are you running and did you set up your keyboard with the software so it can recognize it. Depending on what software it is your using as soon as I know I can tell you how to get it working. I use my midi keyboard with everything from reason, Ableton live, pro tools logic logic express vdj traktor basically every software!

May 29, 2011 | Casio Ctk491 Midi Keyboard

1 Answer

My keyboard keeps shutting off within a minute or two of playing. The woman I purchased it from told me that it had an auto-off battery saving mechanism if you don't touch a key for a while, but this...

If you are running on batteries, they are either depleted OR may have corrosion on the contacts in the keyboard which is COMMON problem. If using an adapter, the cords chronically work loose. A last problem is the switching for using battery or adapter can have poor contacts. If you don't have an adapter, get one and get one SPECIFICALLY for the keyboard... I don't know how many I have had to tell they have the wrong adapter and that is why their unit won't work.

May 15, 2011 | Casio CTK-720 Electronic Keyboard with...

1 Answer

What kind of USB cable do I need for my CTK-491 Keyboard, and where can I find it?

You will need MIDI cable - widely available from good musical instrument (keyboard) stores and on the internet
For more information about using MIDI on your keyboard see the appropriate section in teh user's manual here

Feb 10, 2011 | Casio Ctk491 Midi Keyboard

1 Answer

I have this casio CTK-491 Electronic Keyboard that is not working on its power suppie. It did work at first then i had to wiggle the plug to get it to work and now it stop working is the a part or easy fis...

This could be ay number of things, but assuming that the power supply is fine (the cord isn't broken on either end or down the length of the cord) then it'll probably be a loose connection in the keyboard.
With CTK models if you unscrew the back (not the metal plate) you can open it up, have a look where the connections are going from the power supply socket and re-solder to the board etc if nessesary. Also if you have some strong glue then glueing the adapter in place on the PCB as well as the headphone socket would be a good idea as these connections are used quite a lot and the parts do come loose.

Jul 02, 2010 | Casio Ctk 496 Electronic Keyboard with 61...

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