Casio Ctk691 Keyboard - Answered Questions & Fixed issues

If the volume control is analog (meaning it is an old rotary and not digital) - it may just require cleaning. Pick up a can of electronic switch cleaner.

Here is the link to the user manual http://support.casio.com/en/manual/008/CTK691_EN.pdf

Here is the link for the manual - according to it: Use the TRANSPOSE/FUNCTION button to perform the system reset operation. http://support.casio.com/pdf/008/ctk_691_01_e.pdf

"can I do it my self or should I go to a professional to get it repaired"? Get it repaired by a professional. Casio gives long warranty (5 years in Australia). Mine took weeks for Casio Service to repair. Many boards had to be changed.

Here is a schematic for a CTK680... might be close to your CTK681...

http://elektrotanya.com/casio_ctk_680.pdf/download.html

Scroll down to "get manual" and click to download it. IGNORE other download links on the page.

Assuming this is the correct schematic, IC12 is shown as a TC750BF which is an open collector driver for the MIDI. If this part is bad, the MIDI output drive signal to an external device will not work. Without an external device connected, the output of this chip WILL NOT change as it is an open-collector driver and without the pull-up of the external device the output will remain at zero... so if the tech is testing this particular part AND the symptom is NOT that the MIDI signal to an external device is not working, then he is on the WRONG TRACK. Often radio repairmen do not understand logic chips and their variations.

try mauritron.com

You should not be replacing an adapter on a guess. That could be checked in 15 seconds with a digital multimeter. Your issue is likely a dislodged connector inside. Remove connectors and then reconnect. ..

Greetings, It sounds like you've pre-programmed a certain sound that is usually only triggered by multiple keys into one key. The most efficient way to return to the way that you're searching for might be to perform a factory reset on your device. But you should back up any data into a USB stick before you perform the reset as all data in the Casio device will be reset. Thank you.

If the volume wheel on your Casio WK-200 keyboard is spinning all the way around and not stopping at the "min" or "max" positions, it is likely that the potentiometer that controls the volume has become faulty or damaged. A potentiometer, or pot for short, is a type of variable resistor that is commonly used to control the volume on electronic devices. Here are a few troubleshooting steps you can try:

1. Power off your keyboard and unplug it from the power source.
2. Remove any batteries from the battery compartment.
3. Locate the volume potentiometer inside the keyboard. It should be near the volume wheel and will have three pins or legs.
4. Check the potentiometer for any visible signs of damage, such as cracks or broken pins.
5. Gently wiggle the volume wheel while observing the potentiometer. If it appears to be loose or wobbly, it may need to be replaced.
6. If you have experience with electronics and soldering, you may be able to replace the potentiometer yourself. Otherwise, it is recommended that you take your keyboard to a qualified service technician for repair.

If the issue persists after attempting these troubleshooting steps, it is likely that the potentiometer needs to be replaced. In any case, it is best to seek the assistance of a professional technician to avoid causing further damage to your keyboard.

No you can't as our PROPER Expert Cindy says.Casio Ct-636 does not support any sustain pedals.Amazon.comhttps://www.amazon.com > ask > questionsA: Casio Ct-636 does not support any sustain pedals.The other 'Contributor' probably saw thisCT-S1000V - SupportCasio https://support.casio.com > manualPDFThis Digital Keyboard does not come with a pedal unit. • You can use the PEDAL1 jack to connect an optional (SP-3, SP-20) sustain pedal. You can use the.

The AN8054 is an integrated circuit used in the Casio Tone Bank M120 keyboard. If it has been blown off, you will need to replace it. An equivalent replacement for the AN8054 is the LM358N, which is a dual operational amplifier that can be used as a substitute. Other equivalent options you can consider include the LM741, LM7808, and LM324. It's always recommended to check the datasheet of the substitute IC to ensure it meets the specifications and requirements of the original IC.

Help in the link, but you may have a sticky key on that reed instrument. lots here https://www.google.com/search?q=casio+ctk-574+factory+reset A video here

Question edited to get title correct for full make and model designations. Lots of help here using the Google 'versus' trick https://www.google.com/search?q=Casio%27s+Privia+PX-120+vs+Casio+CDP-S100 ..

It sounds like you may be experiencing issues with the sustain pedal on your Casio CDP-100 digital piano. The problem may not be with the pedal itself, but with the internal connections or circuitry of the piano. If you're unable to factory reset the piano and it's not responding to the sustain pedal, it's likely that there is a problem with the main board. This is a complex issue that may require professional repair. However, before giving up on it, you can try the following steps:

1. Check the connections: Make sure that all of the connections between the pedal, the piano, and the power supply are secure and that there is no damage to the cables.
2. Check the power supply: Make sure that the power supply is working properly and that the piano is receiving power.
3. Try to update the firmware: Check if there is a firmware update available for your piano on the Casio website. Updating the firmware may fix the problem.
4. Check the manual: Consult the piano's manual for troubleshooting steps, it may have some information that can help you.

If none of these steps work, it is likely that the problem is with the main board and it will need to be repaired by a professional technician. Unfortunately, this can be an expensive repair. Keep in mind that attempting to repair a digital piano can be dangerous if you're not familiar with the proper procedures and safety precautions. It's important to keep in mind that the piano was second hand and you were aware of a problem with it and you have been given a lower price as a result. It is also important to note that buying second hand musical instruments may have hidden issues, which is why it's always advisable to inspect it thoroughly before buying it or to buy from a reputable seller who can give you a warranty. Regenerate response

If your Casio Celviano AP-65 turns on but there is no sound, there could be several possible causes for this issue. Here are a few steps you can try to troubleshoot the problem:

1. Check the volume: Make sure that the volume on the piano is turned up and that the volume control on any external speakers or amplifiers is also turned up.
2. Check the connections: Make sure that all cables and connections are securely plugged in and that there are no loose or damaged cables.
3. Check the power supply: If the piano is plugged into an outlet using an extension cord or surge protector, try plugging it directly into the wall to eliminate any issues with the power supply.
4. Check the internal speakers: If the piano has internal speakers, make sure that they are not damaged or malfunctioning.
5. Check the settings: Make sure that the piano is set to play through the internal speakers or any connected external speakers or amplifiers.

If these steps do not resolve the problem, it may be necessary to have the piano inspected by a professional. They will be able to diagnose the issue and recommend the appropriate repair.

Hi :). Are you referring in Casio Cleviano model AP-33? Because i try to search for Casio Cleviano but there is no result. the only available is the model for Casio Cleviano model AP-33. Casio AZ 1 Service Manual Parts List Page 6 . I hope this link can help you to find out the manual for your casio model. thanks

You can download a manual for the Casio MT-35 keyboard from the Casio website.