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Casio CTK 518 I plugged it in to the wall with the wrong power cord and it wont work

Plugged it in with wrong power cord and there was a loud humming and then I pulled the plug, put in the batteries and the small light goes on but no sound.

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Posted on Jan 02, 2017

soundchasr
  • 8 Answers

SOURCE: NO sound through the AMP even though the power light comes on

Not a fuse. First thing, to check your speaker (amp unplugged, of course), touch the + and - speaker connections to a 9V battery. If you don't hear a pop sound then your speaker is blown. Thus, no output sound. If speaker is OK, then the output IC is your problem.

Posted on Jul 25, 2009

  • 11 Answers

SOURCE: My CTK-2000 Casio won't turn on. It's plugged in.

Does it have a rubber power on button? If ss, it's probably worn oujt. Replace it.

Posted on Dec 11, 2009

  • 1137 Answers

SOURCE: I have casio CTK 496.

The jack for the power supply is soldered to the circuit board. It is likely you have bad solder joints. Keep careful track of which screws go where and you should be able to take it apart enough to get to the solder joints. The screw holes are on the bottom.

Posted on Dec 19, 2010

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My Casio Ctk-3200 keyboard can't get switched on with the power line, but it works with batteries.


You probably have shorted out the power supply. Test it with an ohm meter for proper operation. If it's not working, replace it. If it is working, then the power supply board in the instrument is shorted and you'll need to take it in for repair.

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ALWAYS start with the "easy" things 1st. Is the AC outlet on the wall working properly? Is the "wall-wart" power supply working correctly? If no defect is found, check the DC power jack located on the rear of the keyboard. Does it seem to be loose or does moving the power supply jack up/down cause any change? New wall-wart power supplies can be purchased from Radio Shack and usually at a lower price than the original factory replacements.

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Got a used CTK 720 and it has no power. sugestions


try plugging in without the bateries...Also check your adaptor as well as your ac requirements on your keyboard..It specifically calls for a Casio AD-5 Adaptor.
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http://support.casio.com/pdf/008/ctk_720_01_e.pdf

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Buy sustain pedal made for CASIO or switable model.
Pedal for Yamaha or Roland will work in reverse on a Casio.
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I have a Casio CTK 551 Keyboard, when the AC adaptor is connected and power is turned on, the Keyboard lights up for a few seconds then turns off. I noticed no red light lights up when the AC adaptor is...


The adapter has a problem... likely a poor connection of input power that briefly contacts building up some voltage that is then stored in the capacitors in the adapter which then discharge quicklly when you turn on the Casio. The adapters with FIXED blades OFTEN have problems contacting the connections in wall receptacles and extension cords. You may need to bend the blades slightly or use a better receptacle like connector. IF your adapter has a three wire cord from it to the wall receptacle, those SOMETIMES don't seat well...

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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.

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Casio CTK-651 keyboard wont switch on


An internal fuse is UNLIKELY.

More likely is either a bad connection/connector at power input or a bad or intermittent power switch.

Jun 24, 2010 | Casio Music

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I have a CTK-518 Casio Keyboard unit, second-hand. The DC Jack went out on it--the metal rod that makes the connection with the adapter simply broke off. So I purchased a new part and installed it,...


You probably got the WRONG type of jack. Thes jacks have different sizes, including the pin. You probably got one with a smaller sized pin.
These are really a pain to make sure you got the right one.

If you can, verify the pin diameter with a caliper.

ALSO verify the adapter is putting out power FIRST. The forces that broke the jack MAY have destroyed the plug on the cord from the adapter or brolen the cord. Use a voltmeter to verify operation.

If cord is broken, get new plug and replace the plug on the cord that plugs into the unit.

May 03, 2010 | Casio Music

1 Answer

My CTK-2000 Casio won't turn on. It's plugged in, and I've turned it on.


Does it have a rubber power on button? If ss, it's probably worn oujt. Replace it.

Dec 11, 2009 | Music

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