1. Pengenalan
Terima kasih kerana membeliasing the Rowin LT-901 Chromatic Guitar Tuner Pedal. This high-precision tuner is designed for guitar and bass, offering fast and accurate tuning with a clear LCD display. Its true bypass feature ensures your instrument's tone remains unaffected when the tuner is disengaged. This manual provides essential information for setup, operation, maintenance, and troubleshooting to ensure optimal performance of your LT-901 pedal.
2. Ciri-ciri Produk
- Ketepatan Tinggi & Respons Pantas: Experience speedy tuning with 1 cent precision.
- Dual Independent Channel Mode: Allows for silent tuning by muting the signal output.
- Easy-To-Read LCD Display: Black-light LCD screen provides clear and bright tuning results in any lighting condition.
- Pintasan Benar: Improved analog circuit ensures real signal pass-through without tone loss when the tuner is off.
- Reka bentuk padat: Mini and lightweight for easy integration into any pedalboard.

3. Persediaan
3.1 Bekalan Kuasa
The Rowin LT-901 requires a DC 9V power supply. The plug polarity is positive on the barrel and negative in the center. Note: The DC 9V adapter power supply is not included with this product.

3.2 Sambungan
- Connect your instrument (guitar, bass, etc.) to the INPUT 1/4″ monaural jack on the right side of the pedal.
- Sambungkan OUTPUT 1/4″ monaural jack on the left side of the pedal to your amplampu isyarat atau pedal seterusnya dalam rantai isyarat anda.
- Plug the DC 9V power adapter into the power jack.

4. Arahan Operasi
4.1 Hidupkan/Mati Kuasa
The pedal powers on automatically when a power supply is connected. To engage the tuner, step on the footswitch. The LCD display will illuminate, and the signal will be muted for silent tuning. Step on the footswitch again to disengage the tuner and return to true bypass mode, allowing your instrument's signal to pass through unaffected.
4.2 Tuning Modes
The LT-901 operates in chromatic mode, automatically detecting the note you play across a tonal range of 12Hz to 4186Hz (C8). It is suitable for tuning guitars, basses, violins, and other electronic musical instruments.

4.3 Membaca Paparan
- The large LCD screen will show the detected note.
- An LED indicator will show the tuning state: red for flat, green for in tune, and red for sharp.
- Adjust your instrument's tuning pegs until the display shows the correct note and the LED indicator turns green.
5. Spesifikasi
| Ciri | Penerangan |
|---|---|
| Julat Ton | 12Hz~4186Hz (C8) |
| Input | 1/4″ Monaural Jack (Impedance: 100K Ohms) |
| Keluaran | 1/4″ Monaural Jack (Impedance: 0 Ohms) |
| Bekalan Kuasa | DC 9V (plug polarity: positive on barrel, negative in center) |
| Bekerja Semasa | 90mA |
| Dimensi | 95(D)*45(W)*48(H)mm (Approx. 3.7 x 1.5 x 2 inches) |
| Berat badan | 268g (With box) / 5.9 ounces (Item Weight) |
| Bahan Badan | plastik |

6. Penyelenggaraan
- Keep the pedal clean by wiping it with a soft, dry cloth.
- Elakkan mendedahkan pedal kepada suhu, kelembapan atau cahaya matahari langsung yang melampau.
- Do not attempt to disassemble or repair the unit yourself, as this may void the warranty and cause damage.
- Disconnect the power supply when the pedal is not in use for extended periods.
7. Penyelesaian masalah
- Tiada Kuasa: Ensure the DC 9V power adapter is correctly connected and functioning. Check the polarity of the power plug.
- Tiada Keluaran Bunyi: Verify all cables are securely connected. Ensure the tuner is disengaged (true bypass mode) if you expect sound to pass through.
- Penalaan Tidak Tepat: Check that your instrument's output is strong enough. Ensure the pedal is on a stable surface and not picking up external vibrations if using a microphone input (though this model primarily uses instrument input).
- Paparan Tidak Menjawab: Disconnect and reconnect the power supply. If the issue persists, contact customer support.
8. Waranti dan Sokongan
Rowin products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the contact details provided with your purchase or visit the official Rowin webtapak. Sila simpan bukti pembelian anda untuk tuntutan waranti.





