1. Introduction
The Korg AW-OTG is a clip-on guitar tuner designed for accurate and visible tuning. It incorporates advanced OLED display technology, providing a clear and smooth visual experience from various viewing angles. This tuner is engineered to offer high-precision tuning, making it a reliable tool for guitarists.
Figure 1: Korg AW-OTG Clip-On Guitar Tuner attached to a guitar headstock.
2. Product Features
- OLED Display Technology: Provides high visibility and clarity from any viewing angle.
- Guitar-Specific Functions: Includes an intuitive chord finder function.
- Ultra-High Precision Tuning: Achieves accuracy of ±0.1 cents.
- STROBE Feature: Optional mode for enhanced tuning accuracy.
- Alternative Tuning Animations: Offers various visual tuning displays.
- Calibration Function: Allows adjustment of the reference pitch.
- Memory Backup: Retains settings after power off.
- Auto-Power-Off: Conserves battery life by automatically shutting down after a period of inactivity.
3. Setup
3.1 Battery Installation
- Open the battery compartment cover located on the back of the tuner unit.
- Insert one AAA battery, ensuring the correct polarity (+/-) as indicated inside the compartment.
- Close the battery compartment cover securely.
Figure 2: Battery compartment with AAA battery installed.
3.2 Attaching the Tuner
- Gently open the clip on the tuner.
- Attach the tuner securely to the headstock of your guitar. Ensure the clip makes firm contact with the instrument for optimal vibration detection.
- Adjust the angle of the display for comfortable viewing. The tuner features a flexible joint for easy positioning.
Figure 3: Side view of the tuner clip.
Figure 4: Tuner attached to a guitar headstock.
4. Operation
4.1 Power On/Off
Press and hold the POWER button (located on the top left of the unit) to turn the tuner on or off. The OLED display will illuminate upon activation.
4.2 Basic Tuning
- Once powered on and attached to your instrument, pluck a single string.
- The display will show the detected note and a meter indicating pitch accuracy.
- Adjust the string's tension until the meter centers and the note name is stable, indicating accurate tuning.
Figure 5: Tuner display during operation.
4.3 Display Modes (TUNING/CHORD Button)
Press the TUNING/CHORD button (top right) to cycle through different display modes, including standard tuning, strobe mode, and various animation options. The AW-OTG also features a chord finder function accessible through this button.
4.4 Calibration (CALIB Button)
Press the CALIB button (bottom right) to adjust the reference pitch (A4). The default setting is 440 Hz. Refer to the on-screen instructions for specific calibration steps.
4.5 Memory Backup
The tuner automatically saves your last used settings, such as display mode and calibration, even after being powered off.
4.6 Auto Power-Off
To conserve battery life, the AW-OTG will automatically power off after a period of inactivity. This feature is enabled by default.
5. Maintenance
5.1 Cleaning
Wipe the tuner's surface with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or waxes, as these can damage the finish and display.
5.2 Battery Replacement
When the display dims or the tuner becomes unresponsive, replace the AAA battery as described in Section 3.1. Always dispose of used batteries according to local regulations.
6. Troubleshooting
| Problem | Solution |
|---|---|
| Tuner does not power on. | Check if the battery is correctly installed with the proper polarity. Replace the battery if it is depleted. |
| Inaccurate or unstable tuning. | Ensure the tuner is securely clipped to the guitar headstock. Avoid noisy environments. Try recalibrating the tuner (Section 4.4). |
| Display is dim or unreadable. | Replace the battery. The OLED display may dim when battery power is low. |
7. Specifications
- Model Number: AW-OTG
- Tuning Accuracy: ±0.1 cents
- Display Type: OLED
- Power Supply: 1 x AAA battery (included)
- Product Dimensions: 2.5 x 2 x 2.8 inches
- Item Weight: 0.001 ounces
- Manufacturer: Korg
- Date First Available: July 26, 2010
8. Warranty & Support
8.1 Warranty Information
Warranty terms and conditions for the Korg AW-OTG Clip-On Guitar Tuner are typically provided with the product packaging or can be found on the official Korg website. Please retain your proof of purchase for warranty claims.
8.2 Customer Support
For technical assistance, product inquiries, or support, please visit the official Korg website or contact Korg customer service directly. Contact information can usually be found in the product packaging or on the manufacturer's support pages.





