1. Įvadas
Thank you for choosing the Cherub WST-500A Chromatic Tuner. This compact and versatile digital tuner is designed for accurate tuning of various musical instruments, including violin and guitar. It features multiple tuning modes to suit your needs. Please read this manual thoroughly to understand the tuner's functions and ensure optimal performance.
2. Saugos informacija
Kad nesugadintumėte įrenginio ir nesužalotumėte savęs ar kitų, laikykitės šių saugos priemonių:
- Do not expose the tuner to extreme temperatures, direct sunlight, high humidity, or corrosive environments.
- Venkite numesti imtuvą ir stipriai jį sutrenkti.
- Do not attempt to disassemble or modify the tuner. Refer all servicing to qualified personnel.
- Use only the specified battery type (2 x AAA batteries). Ensure correct polarity when installing batteries.
- Remove batteries if the tuner will not be used for an extended period to prevent leakage.
- Baterijas laikykite vaikams nepasiekiamoje vietoje. Prarijus, nedelsiant kreipkitės medicininės pagalbos.
3. Produktas baigtasview
The Cherub WST-500A features a clear LCD display and intuitive controls for easy operation.

1 pav.: priekis view of the Cherub WST-500A Chromatic Tuner, showing the display, control buttons, speaker, and microphone.
Valdikliai ir funkcijos:
- LCD ekranas: Shows note name, tuning accuracy, and mode indicators.
- ĮJUNGIMO/IŠJUNGIMO mygtukas: Powers the tuner on or off.
- AUTO/ITEM Button: Switches between Automatic tuning mode and specific instrument presets (Guitar, Violin).
- FLAT/SOUND Button: In tuning mode, adjusts flat settings. In sound mode, cycles through reference tones.
- RANKINIS mygtukas: Activates Manual tuning mode.
- UP/DOWN Buttons (Manual): Used to select notes in Manual mode or adjust settings.
- Integruotas mikrofonas (MIC): Detects instrument sound for tuning.
- Pranešėjas: Emits reference tones in Sound mode.
- Stovas: Integrated stand on the back for upright positioning.
4. Sąranka
4.1 Akumuliatoriaus įdėjimas
- Raskite baterijų skyrių imtuvo gale.
- Atidarykite akumuliatoriaus skyriaus dangtelį.
- Insert two (2) AAA batteries, ensuring the correct positive (+) and negative (-) polarity as indicated inside the compartment.
- Saugiai uždarykite akumuliatoriaus skyriaus dangtelį.
4.2 Įjungimas / išjungimas
- To turn the tuner ON, press the ĮJUNGTA/IŠJUNGTA mygtuką. Ekranas įsijungs.
- To turn the tuner OFF, press and hold the ĮJUNGTA/IŠJUNGTA mygtuką maždaug 2 sekundes.
5. Naudojimo instrukcijos
5.1 Derinimo režimai
The WST-500A offers three primary tuning modes:
- Automatinis režimas: The tuner automatically detects the note being played. This is the default mode.
- Rankinis režimas: Allows you to manually select the target note for tuning.
- Garso režimas: The tuner plays a reference tone for you to tune by ear.
5.2 Chromatic Tuning (Automatic Mode)
- Turn on the tuner. It will typically start in Automatic Chromatic mode.
- Play a single note on your instrument. Hold the note steadily.
- The tuner's display will show the detected note name.
- Adjust your instrument until the needle on the display is centered and the indicator light turns green.
- If the needle is to the left, the note is flat; tighten the string. If the needle is to the right, the note is sharp; loosen the string.
5.3 Instrument Presets (Guitar/Violin)
The tuner includes specific presets for Guitar and Violin, which can simplify tuning for these instruments.
- Turn on the tuner.
- Paspauskite AUTO/ITEM button repeatedly to cycle through the available instrument modes (Chromatic, Guitar, Violin). The selected instrument will be indicated on the display.
- In Guitar or Violin mode, play the desired string. The tuner will display the target note for that string and guide you to tune it.
- Tune your instrument until the display indicates the correct pitch (centered needle, green light).
5.4 Rankinis režimas
Use Manual mode when you need to tune to a specific note or if the automatic detection is challenging.
- Turn on the tuner.
- Paspauskite VADOVAS button to enter Manual mode.
- Naudokite UP ir ŽEMYN buttons to select your desired target note.
- Play the corresponding note on your instrument and adjust until the display indicates accurate tuning.
5.5 Garso režimas
Sound mode provides an audible reference tone for tuning by ear.
- Turn on the tuner.
- Paspauskite FLAT/SOUND button to enter Sound mode.
- Paspauskite FLAT/SOUND button again to cycle through the available reference tones (e.g., A4, B4, C5).
- Listen to the reference tone and tune your instrument's corresponding string to match the pitch.

Figure 2: The Cherub WST-500A Tuner shown in a hand, illustrating its compact and portable design (approximately 3.9 inches / 9 cm in height).
6. Priežiūra
Proper care will extend the life of your Cherub WST-500A tuner.
- Clean the tuner with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- If the tuner will not be used for an extended period, remove the batteries to prevent potential leakage and damage.
- Laikykite derinimo įrenginį vėsioje, sausoje vietoje, toliau nuo tiesioginių saulės spindulių ir ekstremalių temperatūrų.
7. Problemų sprendimas
If you encounter issues with your tuner, refer to the following table:
| Problema | Galima priežastis | Sprendimas |
|---|---|---|
| Imtuvas neįsijungia. | Neišsikrovusios arba neteisingai įdėtos baterijos. | Pakeiskite baterijas naujomis AAA baterijomis, užtikrindami teisingą poliškumą. |
| Netikslūs derinimo rodmenys. | Background noise, instrument not producing a clear tone, or incorrect mode. | Ensure a quiet environment. Play notes clearly and steadily. Verify the correct tuning mode (Chromatic, Guitar, Violin) is selected. Try Manual mode. |
| Ekranas blankus arba mirga. | Maža akumuliatoriaus energija. | Pakeiskite baterijas. |
| No sound from speaker in Sound Mode. | Not in Sound Mode, or very low battery. | Press FLAT/SOUND button to enter Sound Mode. Replace batteries if necessary. |
8. Specifikacijos
- Derinimo diapazonas: Db (69.296Hz) - d3 (1174.66Hz)
- Derinimo režimai: Chromatic, Guitar, Violin
- Aptikimo metodas: Mikrofonas
- Galia: 2 x AAA baterijos
- Matmenys: Apytiksliai 5.8 x 2.7 x 0.9 colio (14.7 x 6.9 x 2.3 cm)
- Svoris: Maždaug 3.2 uncijos (90 gramai) (be baterijų)
9. Garantija ir palaikymas
Cherub products are manufactured to high-quality standards. For specific warranty information, please refer to the warranty card included with your purchase or contact your local Cherub distributor or retailer. For technical support or further inquiries, please visit the official Cherub websvetainėje arba susisiekite su klientų aptarnavimo skyriumi.
Prašome išsaugoti pirkimo įrodymą bet kokiems garantiniams reikalavimams.





