Ctk 900 Buttons Don't Work And No Sounds And Display Goes On But Show Stipes It'

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Answer #1: Posted by SonuKumar on March 18th, 2024 11:07 AM

SonuKumar

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May 9th, 2021

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Sounds like your Casio CTK 900 keyboard has a serious display and functionality issue. Here's a breakdown of the problem and steps to troubleshoot:

Problem Analysis:

Non-functional Buttons: This indicates a control panel or internal connection issue.

No Sound: Suggests a problem with the sound generation system, speakers, or connections.

Display Showing Stripes: This is a strong sign of a faulty display or a loose display connection.

Troubleshooting Steps:

Basic Checks:

Power: Ensure it's plugged in correctly and the power switch is on. If battery-powered, replace with fresh batteries.

Volume: Make sure volume isn't muted or set to zero.

Speaker Connections: If using external speakers, check if they're plugged in tightly and powered on.

Gentle Internal Inspection:

WARNING: Unplug the keyboard before proceeding.

Remove Back Panel: Carefully open the keyboard (find a disassembly guide online if unsure).

Look for Loose Connections: Visually inspect for loose or disconnected ribbon cables, especially ones leading to the display, buttons, and speakers. Firmly re-seat any loose connections.

Dust: Gently clean away dust build-up using a soft brush.

Reset (if possible):

Some keyboards have a hidden reset button or a reset procedure within the menus. Consult the CTK 900 manual for this information.

If the above doesn't help:

Further Disassembly: This may be necessary for deeper diagnosis, but it's riskier if you're not familiar with electronics.

Professional Repair: Consider contacting a Casio repair center or an experienced electronics technician.

Additional Notes:

The keyboard may have suffered damage from a power surge, liquid spill, or physical impact.

Age plays a factor - older electronics are more prone to component failure.

Let me know if any of the basic steps resolve the problem!

Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful.

Regards,
Sonu
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