1. Introducció
The JOYO California Sound JF-15 is an overdrive and distortion guitar effect pedal designed to simulate the tones of a Mesa Boogie MKII amplifier. It offers a wide range of rock tones, from subtle overdrive to rich, full distortion. This pedal features built-in cabinet emulation, allowing direct connection to a mixing desk, DAW, or computer, functioning as a direct input (DI) box.
This manual provides essential information for the proper setup, operation, and maintenance of your JOYO California Sound JF-15 pedal.
2. Configuració
Follow these steps to properly set up your JOYO California Sound JF-15 pedal:
- Connexió d'alimentació: The pedal requires a DC 9V power adapter with a center-negative polarity. An appropriate power adapter is not included and must be purchased separately. Ensure the power supply meets the working current requirements of the pedal to avoid unexpected noise. The pedal can also be powered by a 6F22 battery.
- Connexió d'entrada: Connect your electric guitar to the "IN" jack (1/4-inch mono) on the right side of the pedal using a standard instrument cable.
- Connexió de sortida: Connect the "OUT" jack (1/4-inch mono) on the left side of the pedal to your guitar amplifier's input or directly to a mixing console/DAW if utilizing the built-in cabinet emulation.
- Ensure Full Connection: Before activating the pedal, verify that all connections (guitar, pedal, amplifier/mixer, power) are secure to prevent signal loss or damage.

Image: Diagram illustrating the DC 9V power input, input jack, output jack, and LED indicator on the JOYO California Sound JF-15 pedal.

Image: Important note regarding power supply requirements for the JOYO California Sound JF-15 pedal, emphasizing DC 9V and central negative polarity.
3. Instruccions de funcionament
The JOYO California Sound JF-15 pedal features six control knobs and a footswitch for engaging the effect. Understanding these controls is key to shaping your desired tone.

Image: Diagram detailing the six control knobs on the JOYO California Sound JF-15 pedal and their functions.
- BAIX: Adjusts the low-frequency (bass) response of the tone.
- MITJÀ: Adjusts the mid-frequency response of the tone.
- ALTA: Adjusts the high-frequency (treble) response of the tone.
- VEU: Controls the frequency response and the character of the distortion. Adjusting this knob in conjunction with the DRIVE knob allows for simulating various amptipus de lificadors.
- CONDUIR: Controls the amount of gain or distortion. Turning it clockwise increases the intensity of the overdrive/distortion effect.
- NIVELL: Controls the overall output volume of the pedal.
- Bypass interruptor de peu: Engages or disengages the effect. When the effect is engaged, the LED indicator will illuminate.
Experiment with the combination of these controls to achieve a wide array of rock tones, from subtle boosts to heavy distortion, mimicking classic Mesa Boogie MKII ampsons lifiers.
4. Manteniment
Proper maintenance ensures the longevity and optimal performance of your JOYO California Sound JF-15 pedal.
- Neteja: Use a soft, dry cloth to wipe the pedal's surface. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish and internal components.
- Emmagatzematge: When not in use for extended periods, store the pedal in a dry, cool environment away from direct sunlight and extreme temperatures. If using a battery, remove it to prevent leakage.
- Protecció física: The pedal features a durable aluminum alloy casing with a stoving varnish finish, offering good resistance to rust. However, avoid dropping the pedal or subjecting it to excessive force, which could damage internal circuitry or external controls.
- Connexions: Periodically check all input and output jacks for debris or corrosion. Ensure cables are inserted and removed carefully to prevent damage to the jacks.

Imatge: Primer pla view of the JOYO California Sound JF-15 pedal, highlighting its stable and sturdy aluminum alloy casing and finish.
5. Solució De Problemes
If you encounter issues with your JOYO California Sound JF-15 pedal, refer to the following troubleshooting tips:
| Problema | Causa possible | Solució |
|---|---|---|
| No fa so quan s'acciona el pedal. |
|
|
| Soroll o brunzit inesperat. |
|
|
| L'indicador LED no s'il·lumina. |
|
|
If problems persist after following these steps, contact JOYO customer support or consult a qualified technician.
6. Especificacions
| Número de model | JF-15 |
| Marca | JOIA |
| Pes de l'article | 13.8 unces (390 grams) |
| Dimensions del producte | 4.72 x 2.17 x 3.82 polzades (3.82" de llargada x 2.17" d'amplada x 4.72" d'alçada) |
| Material del cos | Alumini |
| Font d'alimentació | Corded Electric, Battery Powered (6F22 Battery) |
| Voltage | 9 volts (CC) |
| Dispositius compatibles | Electric Guitar, Guitar Amplifier, Guitar Pedal |
| Tipus de connector | 1/4-Inch Right Angle, 1/4-Inch Right Angle to Straight, 1/4-Inch Straight |
| Interfície del maquinari | Àudio d'1/4 de polzada |
| Format del senyal | Analògic |
| Estil musical | Pop, Rock, Blues |
7. Garantia i Suport
Warranty information for the JOYO California Sound JF-15 pedal is typically provided at the point of purchase or can be found on the official JOYO weblloc web. Si us plau, conserveu el comprovant de compra per a reclamacions de garantia.
For further assistance, technical support, or inquiries, please visit the official JOYO Store or contact their customer service channels. You can find more information at the JOYO Official Store on Amazon.





