20 Most Recent Casio AP-620 AP620 Digital Cabinet Piano Black - Page 9 Questions & Answers

Only new models will work with MAC. Older models work only on PCs. But there mmay be 3rd party drivers for the MAC. I found one for my WK8000 by searching using Google.

If your computer has a SD card reader, you can use a 2GB or smaller SD card. Format the SD card using the CTK4000. Drop tje music into "MUSICDAT" folder. If you connect to PC using a USB cable, you need to download DATA MANAGER from Casio website. DATA MANAGER allows you to copy files from computer to keyboard.

No. Get a more expensive model.

Get a supported SD card. 1GB is supported by most Casio Keyboard. You need to format the SD card in the Casio Keyboard. Midi files must be located within folder called "MUSICDAT". Some models only support "type 0" midi files.

If it hasn\'t been dropped or bumped, check the adapter. Work backwards from the keyboard. It doesn\'t take much for the casio adapters to pack a sad. If there\'s an overload in your switchboard, it\'s usually the Casio that packs a sad...everything else is fine, microwave, tv, stereo - just not the casio. Their adapters are garbage and until recently - they\'ve just gotten better

At the rear normally.

Depending on which model you have, the contacts aren't difficult to locate. If you have removed the keyboard bed (which I hope you have...and not ripped out the guts behind the piano! :) the sensors usually sit to the rear and uppermost. They may be covered by a thin plastic (don't remove the plastic tho)

Jeremy hiyou must open the piano and change the headphone jack

you must open the case and change the rubber contact under the key isn't working

you need change the master volume potentiometer a10k

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

My AP-620 has a pedal problem too... it sticks and I keep hearing the music I play ring out after the pedal is relaesed

How familiar are you with schematics? I've just found my CT-670, There where marker marks on the keys. I cleaned it up. I took it apart as one channels had no sound. I love this machine. I want to find a manual for it also schematics would be very helpful for me too.
I would suggest looking inside for burns on semiconductors. or loose soldering. I need to replace a chip that has no cross reference... that I've found yet... I think it's an amplifier but need to spend more time on it....

One portion of the key scanning matrix has gone bad. First thing is to clean the contacts with 99% isoprophyl alcohol. These USUALLY consist of traces on a circuit board that conductive rubber "pills" under silicone rubber domes are pressed down. Each note usually has two contacts, one closes before the other. This creates "velocity" measurement for the key. IF ONE of the contacts for a key doesn't work, the velocity can detect that the note has actuated, but no release occurs.

This would be on the "STROBE" line for either the first or second contact for THE OCTAVE you have problem with. There are disconnect diodes that prevent sneak paths.

You could have one bad diode, a crack in the circuit board, or a bad connection to the keyswitch board.

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