Piano makes a wind noise from the speakers. headphones are un usable with the noise. It is not immediately noticeable without the headphones but once you notice it becomes unbearable. THe sound does not modulate with the volume.
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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:
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.
Check the connections: Make sure that all cables and connections are securely plugged in and that there are no loose or damaged cables.
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.
Check the internal speakers: If the piano has internal speakers, make sure that they are not damaged or malfunctioning.
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.
If this is a brand new unit, exercise your warranty!
BUT FIRST see if packing material worked through the speaker grill... you know littel pieces of the packing peanuts or otherr contamination that sits in the speaker cone and rattles.
I first would suspect the switches on the eadphone jack. Normally these cut off the speakers when headphones are plugged in. These jacks and the switches are really weak, poorly made, and easily broken, especially if headphone cord gets yanked.
I have a Korg C-15s and also experiencing loud crackling sounds when I turn it on. The problems seems to be either the sliding volume control or the amplifier itself. Honestly though, I believe the issue is the volume control. I opened my piano to get a closer look and attempted to clean the contacts on the volume. Unfortunately after cleaning the contacts, the crackling sounds became somewhat worse. After I turn the piano on, the volume control is generally rendered useless......volume set to low volume and the noise is quite loud and other times the volume control is set high and get very low volume crackling noise. No real consistency. The noise does diminish after a few minutes but so does the piano sounds to an inaudible level. There were a couple of instances where I turned it on and surprising enough, no no noise and perfect sound. For these reasons I believe the issue is within the volume control and not so much the amplifier. I have an electronics background and noticed that the volume control is very unique in design and is not something that can be substituted with another volume control from other sources.
My recommendation is to check the sound quality of the audio from the RCA L/R audio outs on rear of the piano by connecting to a stereo receiver. If it sounds fine you're in luck. If the crackling sound does not diminish after a few minutes like mine does, I would suggest disconnecting the internal speakers and using the audio out only. You can connect a pair of studio monitors or high quality computer speakers, preferably with a small subwoofer to deliver the full audio range and deeper tone of a real piano. I'm currently using a basic pair of Logitech computer speakers and is quite acceptable until I can afford a high quality set of monitors or relocate my piano closer to my high quality Yamaha receiver.
Listen to the output with headphones to check for noise.
OFTEN the output of a drum machine is CORRUPTED by an inadequate sound system. The waveforms generated by a drum machine tax the sound systems. A bass drum output can drive the speaker cone such that it goes beyond the linear range that the speaker and amplifier can handle and this appears as "noise". The noise may sound like a buzz or totally break up.
Turn the volume down and see if EXACTLY the same noise appears at low levels. If not, then saturation of the amp and speaker is likely. Continued use while it is doing that will often destroy the speaker.
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