Question about Casio Portable Keyboard Touch Sensitive Keys

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Ctk 611 key board keys jam

Iam a technician and I have a ctk 611 key board .now a days its keys(first eight keys starting on the second key pad pcb)are not working properly. the complaint is that at first,means when the keyboard is on and if the touch sensor is off, the eight keys will work for a single time and it will be displayed on the lcd.After that these keys displays jammed and will not sound again unless the power is turned off.Kindly give me an adice to repaire this problem.
My findings
(1) if the 39th pin is grounded when the keys looks jammed, it will reopen.
(2) 39th pin voltage is around 5 volts ,when other pin voltages (which are connected to the keypads) are around 2 volts.

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SOURCE: Won't work

The problem is with printer. It is either a gear alignment is needed or the printer detector is already defective. There is also a case that an I.C. for the printer on its mainboard is defective. The best solution is to contact your authorized service center on your area.

Posted on May 27, 2008

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SOURCE: piano/keyboard won't work through imac

Try to connect to other input lines. If your computer has an input line except for mic input try to connect to it. Then configure the settings in your computer, go to the CONTROL PANEL on your computer click SOUNDS & AUDIO DEVICES then configure SOUNDS or AUDIO or VOLUME or VOICE. Then look for the device listed in your system that is available and compatible, then select the most appropriate. After that click APPLY then OK. There you go.

If this solution Doesn't work you must buy a sound card and for sure it will work. Having a sound card gives you several input lines and there is a particular input line for musical instrument like a keyboard in a sound card device. Installing a sound card is easy, and i'll show you. First you must insert your sound card device into your motherboard's PCI slot (most of the motherboards have 3 PCI slots) choose one and take note that your PCI sound card plugs in exactly in that slot so its very easy. After inserting your sound card install the driver for your sound card, install is easy just follow instruction. If you have done this, there you go.
Good Luck!
Pls. rate me if this helps.

Posted on Jun 12, 2008

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SOURCE: Casio PX700 sensors not working

Hi. I don't have a 700, but on the other privia's I have seen, there is a function key combo to turn on and off the touch response. Go to casio, and download the manual. You hit "fn" and then one of the lower keys. There are 4 levels of sensitivity on my machine. -Don

Posted on Feb 16, 2009

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SOURCE: Casio CTK-671 No Sound

Try plugging in a set of head phones , if you get sound that way the input jack may be causeing the prob. try pulling it back an forth a few times, sometimes this will free up the head phone jack. I hope its that simple . May be some one will have another idea Good luck DFD please rate me TK U

Posted on Apr 12, 2009

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SOURCE: Casio ctk-496 claims to be midi keyboard controller

Try downloading MidiOx and troubleshooting with it. It will show you if you have any midi activity and which channel your Casio is transmitting on etc.

Posted on Apr 23, 2009

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