Cherub WST-905Li Rechargeable Clip-on Guitar Tuner User Manual

1. Introduction

Thank you for choosing the Cherub WST-905Li Rechargeable Clip-on Guitar Tuner. This manual provides detailed instructions on how to set up, operate, and maintain your tuner to ensure optimal performance. Please read this manual thoroughly before using the device.

2. Product Overview

2.1 Product Features

• USB Rechargeable Chromatic Tuner for Guitar, Bass, Ukulele, and Baritone.
• Features 4 display modes, including 2 Strobo modes and 2 Arrow modes.
• High degree of accuracy at ±1 cent.
• Offers 5 tuning modes for various instruments.
• Equipped with a durable stainless steel clamp.

2.2 Package Contents

• Cherub WST-905Li Clip-on Tuner
• USB-C Charging Cable (not explicitly listed but implied by USB rechargeable)
• Stainless steel clamp (integrated)
• User Manual (this document)

2.3 Component Identification

Figure 1: Front view of the tuner with its vibrant display.

Figure 2: Rear view of the tuner, displaying the 'FLOW TUNE CLIP' model name and regulatory information.

Figure 3: Side view illustrating the tuner's control buttons for mode selection and display options.

The Cherub WST-905Li features a clear LCD display, control buttons on the side (Power/Mode, A4/Flat, Display), and a durable stainless steel clip for attachment to your instrument's headstock. The USB-C charging port is located on the side.

3. Setup

3.1 Charging the Tuner

The WST-905Li tuner is equipped with a built-in Lithium Ion rechargeable battery. Before first use, or when the battery indicator on the display shows low power, charge the tuner using the provided USB-C cable.

1. Connect the USB-C end of the cable to the charging port on the side of the tuner.
2. Connect the USB-A end of the cable to a standard USB power adapter (e.g., phone charger, computer USB port).
3. The display will indicate charging status. A full charge typically takes a few hours.

Figure 4: Illustration of connecting the USB-C cable for charging the tuner.

3.2 Attaching the Tuner

The clip-on design allows for easy attachment to the headstock of your instrument, where it can detect vibrations directly for accurate tuning.

1. Gently open the stainless steel clamp.
2. Attach the tuner securely to the headstock of your guitar, bass, ukulele, or baritone. Ensure the display is facing you and is easily visible.
3. Adjust the angle of the display for optimal viewing using the flexible joint.

Figure 5: The tuner securely clipped onto a guitar headstock, ready for use.

Figure 6: Demonstrates the tuner's compact size and discreet placement on the instrument.

4. Operation

4.1 Power On/Off

Press and hold the Power/Mode button (usually marked with ⌀/M) on the side of the tuner to turn it on or off.

4.2 Selecting Tuning Modes

The WST-905Li offers 5 tuning modes to accommodate various instruments. Press the Power/Mode button briefly to cycle through the available modes:

• Chromatic (C): For all instruments, displays the note name.
• Guitar (G): Optimized for guitar tuning.
• Bass (B): Optimized for bass guitar tuning.
• Ukulele (U): Optimized for ukulele tuning.
• Baritone (Bar): Optimized for baritone ukulele tuning.

4.3 Understanding Display Modes

The tuner features 4 distinct display modes, including two Strobo modes and two Arrow modes, providing visual feedback for precise tuning. Press the 'DISP' button to cycle through these display options.

Figure 7: Examples of the four available display modes, including Strobo and Arrow indicators.

4.4 Tuning Process

Once the tuner is attached and powered on, pluck a single string on your instrument. The display will show the note name and indicate whether the note is sharp, flat, or in tune.

• If the note is flat, the indicator will show below the center, and the display might be blue or red depending on the mode. Tighten the string.
• If the note is sharp, the indicator will show above the center, and the display might be blue or red depending on the mode. Loosen the string.
• When the note is in tune, the indicator will be centered, and the display will typically turn green or show a stable pattern.

4.5 Compensated Tuning

The WST-905Li features a compensated tuning method, particularly useful for guitars, to achieve a more harmonized sound across the fretboard. This mode adjusts the target pitch slightly for each string to account for intonation imperfections inherent in stringed instruments.

Figure 8: Compensation tuning values for standard guitar strings. These values represent the offset in cents from perfect pitch for optimal intonation.

To use compensated tuning, select the appropriate mode (e.g., Guitar mode) and follow the on-screen instructions or refer to the specific compensation values provided in the manual or on the product's support page. This feature allows for a more precise and musically pleasing tuning experience.

4.6 Product Demonstration Video

Watch this official video for a visual guide on the features and operation of the Cherub WST-905Li tuner.

5. Maintenance

5.1 Cleaning

To clean the tuner, gently wipe the display and body with a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the device in water.

5.2 Storage

Store the tuner in a cool, dry place away from direct sunlight and extreme temperatures. When not in use for extended periods, ensure the battery is partially charged (around 50%) to prolong its lifespan.

5.3 Battery Care

The Lithium Ion battery is designed for long life. To maximize battery longevity:

• Avoid fully discharging the battery frequently.
• Avoid leaving the tuner plugged in for extended periods after it is fully charged.
• Recharge the tuner regularly, even if not used frequently, to prevent deep discharge.

6. Troubleshooting

6.1 Tuner does not power on.

• Check Battery: The battery may be depleted. Connect the tuner to a USB power source and allow it to charge for at least 30 minutes before attempting to power on again.
• Reset: Locate the small reset button (if present, often a pinhole) and gently press it with a paperclip.

6.2 Inaccurate tuning readings.

• Secure Attachment: Ensure the tuner is firmly clipped to the instrument's headstock. Loose attachment can affect vibration detection.
• Environmental Noise: Tune in a quiet environment to minimize interference from external sounds.
• Correct Mode: Verify that the correct tuning mode (e.g., Guitar, Bass, Chromatic) is selected for your instrument.
• String Plucking: Pluck strings clearly and individually. Avoid muting or touching other strings.

6.3 Display is dim or flickering.

• Battery Level: The battery may be low. Recharge the tuner.
• Environmental Conditions: Extreme temperatures can affect LCD performance. Move the tuner to a moderate temperature environment.

7. Specifications

7.1 Technical Specifications

8. Warranty and Support

Cherub Technology Co.,Ltd provides a manufacturer's warranty for this product. For specific warranty terms, registration, or technical support, please refer to the warranty card included with your product or visit the official Cherub website. Please retain your proof of purchase for warranty claims.

For further assistance, you may contact Cherub Technology Co.,Ltd directly through their official support channels.