At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
I have a casio WK 3000 Keyboard. The power comes on sometimes and sometimes it does not.... The ac adapter is plugged in as always and the power plug is good. Do you have any suggestions
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The power adapter has a fuse inside. If you have a voltmeter, see if there is any voltage present at the tip and outer barrel of the plug. If there is none the adapter is bad. If there IS voltage, then look for a fuse on the circuit board inside the keyboard.
This could be a loose plug inside the unit or it could be a circuit that is bad. If the plug failed it is from physical damage from something like tripping over it or heavy use. That can be repaired by replacing the plug. If it is something like a component in the unit on a board then it becomes a little more involved.
Some Casio Keyboards use 9V DC (center negative) others 12V DC (center negative).
If check what voltage your Keyboard use. Generic AC adapters are usually center positive. So you have to invert the wire with a new DC plug to make it center negative,
Easiest is to buy a Casio ac adapter made for your keyboard from a Casio retailer.
Check the polarity on the adapter plug. It must correspond to the diagram on the keyboard . If it's reversed, just cut and resolder the cable that connects to the keyboard.
My 3500 also has a similar problem. It only switches on if I plug the power and immediately press start . If I wait a few seconds it won't start.
Make sure you use ONLY the correct adapter for power. Too small an adapter might cause it to light up but will not operate the unit. The correct adapter should say AD12 on it. It is a 2 volt, center pin minus, and probably 1 or 2 amps capability. Nine volt adapters used with pedals or universal adapters will NOT work with the WK3000.
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...
The adapter required is a 12 volt 1.5 amp (1500ma or 18 watts). Check the polarity carefully as to whether the pin or the shell is positive... Many Casio have the shell as positive but do NOT gamble, check for the markings near the connector.
I had the same problem. You might try the keyboard on good fresh high quality batteries. If this solves the problem, buy another ac power adapter. Good luck!!
×