Yamaha Dgx 670 Problems

The Yamaha DGX-670, a digital piano lauded for its versatility and features, offers aspiring and experienced musicians alike a compelling blend of acoustic piano realism and digital functionality. From its weighted action keys to its extensive library of voices and styles, the DGX-670 aims to be a complete musical solution. However, like any complex piece of technology, it's not without its potential issues. Understanding these common problems, and more importantly, how to troubleshoot them, can save you time, frustration, and potentially expensive repair bills.

The Silent Treatment: Addressing Audio Issues

One of the most frustrating issues any musician can encounter is a lack of sound. Several factors can contribute to the Yamaha DGX-670 going silent, and thankfully, many of them are easily resolved.

Volume Control: This might seem obvious, but it's the first place to check. Ensure the master volume knob is turned up sufficiently. It’s surprisingly easy to accidentally nudge it down.
Headphone Jack Issues: The DGX-670 automatically mutes the speakers when headphones are plugged in. Sometimes, the jack can become faulty or detect a phantom connection even when headphones are removed. Try inserting and removing headphones a few times to dislodge any potential obstruction or reset the sensor.
Speaker Problems: While less common, a blown speaker is a possibility. Listen closely to each speaker individually (if possible) to identify if one is producing distorted or no sound. If you suspect a blown speaker, professional repair or replacement is usually required.
Internal Amplifier Failure: This is a more serious issue. If you've ruled out all other causes and still have no sound, the internal amplifier may have failed. This typically requires professional diagnosis and repair.
Software Glitches: Occasionally, a software glitch can cause audio problems. Try performing a factory reset (refer to the manual for instructions) to see if it resolves the issue. Be aware that a factory reset will erase any custom settings or registrations you've saved.

Keyed Up: Dealing with Keyboard Problems

The feel of the keyboard is crucial for a digital piano. Problems with the keys can significantly impact playability and enjoyment.

Sticking or Sluggish Keys: Dust, debris, or even humidity can cause keys to stick or feel sluggish. Try gently cleaning the keys with a soft, slightly damp cloth. Avoid using harsh chemicals or excessive moisture. For more stubborn cases, compressed air can be used to dislodge debris from underneath the keys.
Uneven Key Response: If some keys are louder or softer than others when played with the same force, it could indicate a problem with the key sensors. This can sometimes be recalibrated through the DGX-670's settings (refer to the manual). If recalibration doesn't work, it might require a professional repair.
Dead Keys: A key that produces no sound at all is a significant problem. This usually indicates a faulty sensor or a broken connection. Professional repair is typically necessary.
Key Noise: Digital pianos are generally quieter than acoustic pianos, but excessive key noise can be distracting. This can be due to worn felt or lubrication. While some users attempt to lubricate the keys themselves, it's generally recommended to have a professional service technician address this issue to avoid damaging the instrument.

Connectivity Conundrums: Troubleshooting USB and Bluetooth Issues

The DGX-670's connectivity options are a major selling point, but they can also be a source of frustration if they don't work as expected.

USB Host Issues (Connecting to a Computer): If your computer isn't recognizing the DGX-670, try the following:
- Ensure you're using a high-quality USB cable.
- Try a different USB port on your computer.
- Install the necessary Yamaha drivers for your operating system (available on the Yamaha website).
- Restart both the DGX-670 and your computer.
- Check your DAW (Digital Audio Workstation) settings to ensure the DGX-670 is selected as the MIDI input/output device.
USB to Device Issues (Connecting a USB Drive):
- Ensure the USB drive is formatted correctly (FAT32 is the most common compatible format).
- Try a different USB drive.
- Make sure the files you're trying to load are in a compatible format (e.g., MIDI files, audio files).
- The DGX-670 has a maximum USB drive size it can recognize. Check the manual for the specified limit.
Bluetooth Connectivity Problems:
- Ensure Bluetooth is enabled on both the DGX-670 and your connecting device (e.g., smartphone, tablet).
- Make sure the DGX-670 is in pairing mode (refer to the manual).
- Try restarting both devices.
- Check for any interference from other Bluetooth devices.
- Update the firmware on the DGX-670 (if an update is available).

Style and Voice Hiccups: Addressing Sound and Functionality Issues

The DGX-670 boasts a vast library of voices and styles. Problems with these features can limit your creative possibilities.

Styles Not Loading Correctly: If a style sounds distorted or incomplete, it could be due to corrupted data. Try re-downloading the style from the Yamaha MusicSoft website or restoring the DGX-670 to its factory settings.
Voice Problems (Incorrect Sound, Distortion): Similar to style issues, corrupted voice data can cause problems. Try selecting a different voice and then returning to the original voice. If the problem persists, a factory reset might be necessary.
Registration Memory Issues: Registrations allow you to save and recall specific settings. If registrations are not loading correctly, it could be due to corrupted data. Try re-saving the registration or performing a factory reset.
Metronome Issues: If the metronome is not working or is out of sync, check the tempo and time signature settings. A software glitch can sometimes cause this issue, so a power cycle (turning the DGX-670 off and on again) might resolve it.

Display Discomfort: Troubleshooting Screen Issues

The DGX-670's display provides crucial information and navigation. Issues with the screen can make the instrument difficult to use.

Dim or Flickering Display: This could be a sign of a failing backlight. While some users attempt to replace the backlight themselves, it's a delicate procedure that's best left to a professional.
No Display: If the screen is completely blank, check the power connection and ensure the DGX-670 is turned on. If the problem persists, it could indicate a more serious hardware issue requiring professional repair.
Distorted or Garbled Display: This is often a sign of a software glitch. Try restarting the DGX-670. If that doesn't work, a factory reset might be necessary.

Power Problems: Addressing Issues with Turning On

The most fundamental problem is when the DGX-670 refuses to turn on. This can be a daunting issue, but there are some simple checks to perform before seeking professional help.

Check the Power Adapter: Ensure the power adapter is securely plugged into both the DGX-670 and the wall outlet. Try a different outlet to rule out a problem with the power source.
Inspect the Power Cord: Look for any signs of damage to the power cord, such as cuts or fraying. If the cord is damaged, it needs to be replaced.
Internal Fuse: The DGX-670 may have an internal fuse that has blown. Consult the owner's manual for the location of the fuse and instructions on how to replace it. Caution: Always disconnect the power cord before attempting to replace a fuse.
Power Supply Failure: If you've checked all the above and the DGX-670 still won't turn on, the internal power supply may have failed. This requires professional diagnosis and repair.

Firmware Frustrations: Dealing with Update Issues

Keeping the DGX-670's firmware up-to-date is important for optimal performance and access to new features. However, firmware updates can sometimes go wrong.

Update Fails to Complete: If the firmware update process is interrupted (e.g., power outage), it can leave the DGX-670 in an unusable state. In this case, you may need to contact Yamaha support for assistance. They may be able to provide instructions on how to manually re-flash the firmware.
Update Causes New Problems: Occasionally, a firmware update can introduce new bugs or issues. If this happens, you can try reverting to a previous firmware version (if possible) or waiting for Yamaha to release a fix. Refer to the Yamaha website or support forums for information on how to revert to a previous firmware version.

Frequently Asked Questions

My DGX-670 is making a buzzing sound. What could be the cause? A buzzing sound can be caused by a loose connection, a ground loop, or a problem with the speakers. Check the connections and try a different power outlet.
How do I reset my Yamaha DGX-670 to factory settings? The specific steps vary depending on the firmware version. Refer to the owner's manual for detailed instructions on performing a factory reset.
Can I connect my DGX-670 to an iPad? Yes, you can connect your DGX-670 to an iPad using a USB cable and a Lightning to USB Camera Adapter (or USB-C adapter, depending on your iPad model). You may also need to download a compatible MIDI app.
Where can I find the latest drivers for my DGX-670? You can download the latest drivers from the Yamaha website's support section, specifically for the DGX-670 model. Be sure to select the correct operating system for your computer.
How do I transpose the key on my Yamaha DGX-670? Press the Function button, then navigate to the Transpose setting using the arrow buttons. Use the dial or arrow buttons to adjust the transposition value.

In conclusion, while the Yamaha DGX-670 offers a wealth of features and a satisfying playing experience, it's not immune to potential problems. By understanding these common issues and following the troubleshooting steps outlined above, you can often resolve them yourself and keep your DGX-670 performing at its best. If the issue persists, it's always best to consult a qualified service technician to avoid further damage.