Why is there no sound from my digital piano and what can I do about

Hi,

please check that the volume-down button isn't stuck and therefore forcing the volume of your piano to decrease. You might wiggle the button from side to side if you noticed that it's stuck. If possible, attempt to route the piano sound to an external speaker and see if you receive the same results as you initially did.

Thank you.

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If certain notes on your Technics SX-PR150 digital piano are playing at a lower volume than others, it's possible that there could be a few underlying reasons for this issue. Here are some steps you can take to troubleshoot and potentially resolve the problem:

1. Dust and Debris:
   • Check if there is any dust, debris, or foreign objects present around the keys and internal components. Dust or debris could affect the key's action and cause uneven volume levels.
2. Contact Cleaning:
   • If you're comfortable doing so, you can carefully open the piano and clean the contacts underneath the affected keys. Contacts that have accumulated dirt or oxidation might lead to volume inconsistencies. Use a clean, dry cloth or contact cleaner specifically designed for electronics.
3. Key Mechanism:
   • Inspect the key mechanism for any signs of physical damage, misalignment, or wear. Damaged or misaligned keys could lead to uneven volume levels.
4. Sensors and Sensors Board:
   • Digital pianos like the Technics SX-PR150 use sensors to detect key presses and control volume. If a sensor is malfunctioning or damaged, it could result in volume inconsistencies. Check the sensors and their connections for any issues.
5. Audio Output and Amplification:
   • Check if the issue is specific to the internal speakers or if it also occurs when using headphones or external amplification. If the issue is present across all audio outputs, it might be related to the piano's internal components.
6. Factory Reset:
   • Perform a factory reset on the piano to restore its settings to default. This can help rule out any software-related issues that might be affecting the volume levels.
7. Professional Inspection:
   • If the above steps do not resolve the issue, it's recommended to seek the assistance of a professional technician who is experienced in repairing digital pianos. They can diagnose the problem accurately and perform any necessary repairs.

Please exercise caution while performing any internal inspections or repairs on your digital piano, especially if you're not experienced in working with electronic equipment. If you're unsure or uncomfortable with the process, it's best to seek professional help to avoid causing further damage.

Try this first with the piano off, run the control from stop to stop rapidly several times. The object is to clean off any dust deposits and shine the contacts inside the pot. If the pot is not damaged beyond repair, then this should fix it.

On organ mode, in general, almost all brands of the modern keyboard, velocity setting is not enabled. Setting velocity is used to determine how much the level of the sound that follows how strongly you press the keys. It is really just to imitate the sound of vintage organs, which in the past, electronic organ technologi not use the velocity on the keys. So, how strong / slow we press the keys, the sound level will remain the same.
At the Piano mode,modern keyboard using setting velocity. This also to imitate an acoustic piano, which, if we press the keys slowly, the sound level will be slow as well, and vice versa.
So, in your case,at the same volume slider, try to play on the organ modes, note level. Moving to the piano mode and press the keys securely powered (full power). Then the sound level should be equal to the organ mode.
On modern keyboards, also included organ sound that added velocity setting. Usually found on the user bank.

Try reloading the factory presets. If that doesn't work seek out an experienced audio technician.

main board problem.. faulty ic.if all oher functions are working..on the main board change ic number ak4385 DAC

Experiencing discomfort or pain in your ears while playing your Technics digital piano is not a normal occurrence and could be a sign of an issue that needs attention. There are a few potential reasons for this phenomenon:

1. Frequency Range: It's possible that certain frequencies produced by the piano are resonating with the natural frequencies of your ears or the surrounding environment, causing discomfort. This could explain why you feel it more in specific ranges of the keyboard.
2. Acoustic Properties: The sound produced by the piano might be reflecting off nearby surfaces or causing standing waves in the room, which can create resonances that affect your ears.
3. Volume Level: If the piano's volume is too high, it could lead to discomfort or pain in your ears. Even if the volume seems moderate, it's possible that specific frequencies or overtones are causing issues.
4. Headphones: The fact that you don't experience this issue when using headphones suggests that the problem might be related to the piano's built-in speakers or its interaction with the acoustics of your environment.
5. Electronic Components: There could be a malfunction or interference in the piano's electronic components that is affecting the sound output in a way that causes discomfort.

To address this issue:

1. Volume Control: Try lowering the volume of the piano and see if the discomfort lessens. Gradually increase the volume until you find a level that doesn't cause discomfort.
2. Room Acoustics: Experiment with placing the piano in different locations within the room to see if it affects the sensation you're experiencing. You could also try using soft materials like curtains, rugs, or acoustic panels to dampen reflections and standing waves.
3. Equalization: If your piano has an equalizer or tone control settings, try adjusting them to see if it reduces the discomfort.
4. Professional Inspection: If the issue persists, consider having the piano inspected by a technician to check for any electronic or acoustic anomalies.
5. Expert Advice: If none of these steps resolve the issue, it might be best to consult with an audiologist or a professional musician who has experience with piano-related sound sensitivities. They might be able to provide more personalized advice and recommendations.

Your health and well-being are important, so it's essential to address any discomfort or pain you're experiencing while playing your digital piano.

Go into function and look for the volume setting for your main voice - could be R1. This will give a numeric value of 127 or less. It sounds like you need to increase it, try 100 as that is usually sufficient.

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.

I hope this info helps a bit.