Question about Casio CTK810 61 Key Keyboard

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My casaio keyboard ctk811 only works off batteries goes off when connected to the new adapter that i have bought

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Many people get "universal adapters" which OFTEN will not work.

When choosing an adapter you are best to get original equipment. If you don't do that, then you MUST:

1. Match the Voltage and whether it is AC or DC output.

2. Match the polarity

3. Check that the current capability is at least what is required..

4. Match the size of BOTH the barrel AND the pin. There are MANY sizes and the wrong size will not work.

You should be using a Casio AD-5 adapter. It is a 9 volt DC adapter, It should have at least 900ma current, A 1 amp unit would be fine.

Posted on Sep 10, 2010

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What kind of adapter do i use for my keyboard Casio ca-110


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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.

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1. Try the volume

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3. Try it with the headphones. If they work and the speakers don't, you've narrowed down your problem. There may be some damage or wiring problem within where the board meets the speakers, and/or before processing.

4. Try it with batteries. If that works, you need a new adapter.

http://www.ioffer.com/i/adaptor-cord-yamaha-psr-or700-s500-s700-s900-arranger-113553507

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If you have a volt/ohm meter try checking to plug that goes into the keyboard for voltage on the DC setting. If there is none, you will have to replace the adapter. Be sure to plug the adapter into the wall when you check it or you will get no reading. If that is not the problem, then it is probably the receptacle for the DC end of the power supply. What happens is that if they get bumped the solder connector on the circuit board breaks. If you do not feel comfortable fixing this yourself, you will have to find someone who is capable. Hope this helps.

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