Model: WMT-555C | Brand: Cherub
The Cherub WMT-555C is a versatile electronic device designed for musicians, combining a chromatic tuner and a digital metronome into a single, portable unit. It is suitable for a wide range of instruments, including guitars and orchestral instruments, and features a clip-on pickup for accurate acoustic instrument tuning.
This manual provides detailed instructions for the setup, operation, and maintenance of your WMT-555C to ensure optimal performance and longevity.

Image: Cherub WMT-555C Tuner and Metronome with Pickup. The device features a large LCD screen, control buttons, a speaker, and input jacks. Below it is the clip-on pickup with a 1/4" jack.
The WMT-555C unit includes:
Key Controls and Display Elements (Refer to image above):
The WMT-555C requires 1 AAA battery for operation. Ensure the battery is inserted with the correct polarity as indicated inside the battery compartment. A fresh alkaline battery is recommended for optimal performance and battery life.
Tryk på ON / OFF button to power the unit on. Press and hold the ON / OFF button again to power it off.
For tuning acoustic instruments, connect the provided clip-on pickup to the INPUT jack on the side of the unit. Attach the clip securely to your instrument, typically near the bridge or soundboard, to best capture vibrations.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Enheden tænder ikke. | Dødt eller forkert installeret batteri. | Replace the AAA battery, ensuring correct polarity. |
| Tuner is not detecting sound. | Incorrect input method selected; low instrument volume; faulty pickup/cable. | Ensure pickup is securely connected or use the built-in MIC. Increase instrument volume. Check pickup/cable for damage. |
| Metronome sound is too quiet. | Volume slider set too low; speaker obstruction. | Juster Vol. slider to increase output. Ensure the speaker grille is clear. Consider using headphones. |
| Tuner response is slow. | Weak signal from instrument; noisy environment. | Ensure a clear, sustained note is played. Use the clip-on pickup in noisy environments. |
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