Sarrera
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.
Produktua amaituview

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:
- Integrated Chromatic Tuner
- Metronomo digitala
- Mikrofono integratua
- 1/4" Input Jack
- Aurikularretarako Jack
- Clip-on Pickup (for acoustic instruments)
Key Controls and Display Elements (Refer to image above):
- LCD pantaila: Shows Metronome settings (Tempo, Time Signature, Rhythm) or Tuner information (Note, Pitch).
- Vol. (Volume): Irteerako bolumena doitzen du.
- Entzungailuen kablea: Entzun pribaturako.
- SOINUA botoia: Activates the tone generator in Tuner mode.
- VALUE Buttons (Up/Down): Adjusts values like tempo, pitch, or rhythm.
- TEMPO Buttons (Up/Down): Specifically adjusts metronome tempo.
- PITCH Buttons (Up/Down): Adjusts the reference pitch in Tuner mode.
- ELEMENTUA botoia: Navigates through settings or parameters.
- MODE botoia: Switches between Tuner and Metronome modes.
- BEAT Button: Adjusts the beat pattern in Metronome mode.
- ON / OFF botoia: Unitatea pizten edo itzaltzen du.
- PLAY Metronome Button: Starts or stops the metronome.
- INPUT Jacka: 1/4" input for instruments or pickup.
- Mikrofonoa: Built-in microphone for tuning acoustic instruments without the pickup.
Konfigurazioa
1. Bateriaren instalazioa
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.
2. Piztu/Itzaltzea
Sakatu ON / OFF button to power the unit on. Press and hold the ON / OFF button again to power it off.
3. Connecting the Pickup (Optional)
For tuning acoustic instruments, connect the provided clip-on pickup to the SARRERA jack on the side of the unit. Attach the clip securely to your instrument, typically near the bridge or soundboard, to best capture vibrations.
Funtzionamendu-argibideak
Tuner modua
- Select Tuner Mode: Sakatu MODUA button until "Tuner" is displayed on the screen.
- Sarrera-metodoa:
- Internal Microphone: For acoustic instruments, ensure no cable is plugged into the INPUT jack. The built-in MIC will detect sound.
- Pickup/Instrument Cable: Plug the clip-on pickup or your instrument's 1/4" cable into the SARRERA jack.
- Afinatu zure instrumentua: Play a single note on your instrument. The display will show the detected note and indicate whether it is sharp, flat, or in tune. Adjust your instrument's tuning pegs until the display indicates the note is in tune.
- Gakoen hautaketa: The tuner supports chromatic tuning in 4 keys: C, F, B♭, and E♭. Use the ITEM button to cycle through these key options if needed.
- Tonuaren kalibrazioa: The reference pitch can be calibrated from 435Hz to 445Hz. Use the ZELAIA buttons to adjust the A4 reference frequency. The default is typically 440Hz.
- Tonu Sortzailea: Sakatu SOINUA button to activate the built-in tone generator, which produces a reference tone for manual tuning.
Metronomo modua
- Select Metronome Mode: Sakatu MODUA button until "Metronome" is displayed on the screen.
- Doitu Tenpoa: Erabili TEMPO buttons (Up/Down) to set the desired beats per minute (BPM). The range is 30-230 BPM.
- Set Time Signature: Sakatu ITEM button to select the time signature setting. Use the BALIOA buttons to choose from available time signatures: -/4 (0), 1/4, 2/4, 3/4, 4/4, 3/8, 6/8.
- Hautatu Erritmoa: Sakatu BEAT button to cycle through various rhythm patterns (e.g., quarter notes, eighth notes, triplets).
- Metronomoa hasi/gelditu: Sakatu PLAY Metronome button to start the metronome click. Press it again to stop.
- Doitu bolumena: Erabili liburukia slider to adjust the metronome's output volume.
Mantentzea
- Garbiketa: Use a soft, dry cloth to clean the unit. Do not use liquid cleaners or abrasive materials.
- Bateria zaintzea: Remove the battery if the unit will not be used for an extended period to prevent leakage.
- Biltegiratzea: Store the WMT-555C in a cool, dry place, away from direct sunlight and extreme temperatures.
- Manipulazioa: Saihestu unitatea erortzea edo kolpe gogorren eraginpean jartzea, barneko osagaiak kaltetu baititzake.
Arazoak konpontzea
| Arazoa | Kausa posiblea | Irtenbidea |
|---|
| Unitatea ez da pizten. | Bateria hilda edo gaizki instalatuta. | Ordeztu AAA pila, polaritate zuzena ziurtatuz. |
| 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. | Egokitu liburukia 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. |
Zehaztapenak
- Eredua: WMT-555C
- Sintonizazio eremua: A0 (27.5Hz) - A3 (1760Hz)
- Erreferentziako zelaia: 435Hz - 445Hz (Adjustable)
- Afinazio teklak: C, F, B♭, E♭
- Tempo Barrutia: 30 - 230 BPM
- Time Signatures: -/4 (0), 1/4, 2/4, 3/4, 4/4, 3/8, 6/8
- Potentzia: 1 x AAA bateria (barne)
- Neurriak: 8 x 1 x 5 hazbete inguru
- Pisua: 4.2 ontza gutxi gorabehera
- Sarrera: 1/4" Jack, Built-in Microphone
- Irteera: Earphone Jack, Built-in Speaker