1. Introduction
Thank you for choosing the JOYO JF-10 Dynamic Compressor Guitar Effect Pedal. This manual provides essential information for the proper setup, operation, and maintenance of your pedal. The JF-10 is designed to provide dynamic compression, enhancing sustain and evening out your guitar's signal for a more consistent tone.
2. Product Features
- Guitar Effect Pedal
- Dynamic Compressor
- Analog Circuitry
- True Bypass design for signal integrity
- Durable metal casing
3. Controls and Functions
Figure 1: Top view of the JOYO JF-10 Dynamic Compressor pedal, highlighting its three control knobs: SUSTAIN, ATTACK, and LEVEL, along with the footswitch and input/output jacks.
- SUSTAIN Knob: Adjusts the amount of compression and the length of the note's sustain. Turning clockwise increases sustain and compression.
- ATTACK Knob: Controls how quickly the compressor reacts to the initial signal. Turning counter-clockwise results in a faster attack (more immediate compression of the initial signal), while turning clockwise allows more of the initial signal to pass through before compression begins.
- LEVEL Knob: Sets the overall output volume of the effect. Use this to match the volume of the effected signal to your bypassed signal, or to provide a boost.
- Footswitch: Engages or disengages the effect.
- LED Indicator: Illuminates when the effect is active.
- IN Jack: 1/4-inch input for your guitar or previous effect pedal.
- OUT Jack: 1/4-inch output to your amplifier or next effect pedal.
- DC 9V Input: For connecting a 9V DC power adapter (center negative).
4. Setup and Connections
- Ensure your amplifier is turned off or its volume is set to minimum.
- Connect your guitar to the IN jack of the JF-10 pedal using a standard 1/4-inch instrument cable.
- Connect the OUT jack of the JF-10 pedal to your amplifier's input (or the input of the next pedal in your signal chain) using another 1/4-inch instrument cable.
- Power the pedal using either a 9V DC power adapter (center negative, not included) connected to the DC 9V input, or by installing a 9V battery.
- Once all connections are secure, you may turn on your amplifier and adjust its volume.
5. Power Supply
The JOYO JF-10 pedal can be powered by:
- A 9V DC power adapter (center negative).
- A 9V battery.
Battery Installation:
Figure 2: Rear view of the JOYO JF-10 Dynamic Compressor pedal, illustrating the battery compartment cover for 9V battery installation.
- Locate the battery compartment cover on the rear of the pedal.
- Carefully remove the cover.
- Connect a new 9V battery to the battery clip.
- Place the battery inside the compartment and replace the cover securely.
Note: Disconnect input cables when not in use to conserve battery life.
6. Operating Instructions
After connecting the pedal as described in Section 4:
- Press the footswitch to activate the effect. The LED indicator will light up.
- Adjust the SUSTAIN knob to control the amount of compression and the length of your notes. Start with a lower setting and increase gradually.
- Use the ATTACK knob to fine-tune how the compressor responds to your picking dynamics. Experiment with different settings to find the desired feel.
- Adjust the LEVEL knob to set the output volume of the pedal. Ensure there is no significant volume drop or boost when switching the effect on and off, unless a boost is desired.
- To bypass the effect, press the footswitch again. The LED indicator will turn off.
7. Specifications
| Parameter | Value |
|---|---|
| Model | JF-10 |
| Dimensions | 4.65 x 2.52 x 1.5 inches (11.8 x 6.4 x 3.8 cm) |
| Item Weight | 10.2 ounces (0.29 kg) |
| Power Requirements | 9V DC (center negative) or 9V Battery |
| Hardware Interface | 1/4-inch Audio Input/Output |
| Signal Format | Analog |
8. Maintenance
- Keep the pedal clean by wiping it with a soft, dry cloth.
- Avoid exposing the pedal to extreme temperatures, humidity, or direct sunlight.
- Do not attempt to disassemble or modify the pedal, as this may void your warranty and cause damage.
- Use only the specified 9V DC (center negative) power supply to prevent damage.
9. Troubleshooting
- No Sound:
- Check all cable connections (guitar to IN, OUT to amp).
- Ensure the power supply is correctly connected and functioning, or that the 9V battery has sufficient charge.
- Verify that your guitar and amplifier are working correctly.
- Check if the pedal is engaged (LED on).
- Unwanted Noise/Hum:
- Ensure you are using a regulated 9V DC power supply.
- Check for faulty cables.
- Try isolating the pedal from other power sources or effects to identify potential ground loops.
- Effect Not Working:
- Confirm the pedal is receiving power and the LED is lit when engaged.
- Adjust the SUSTAIN, ATTACK, and LEVEL knobs to ensure they are not set to minimum or extreme settings that might make the effect imperceptible.
10. Safety Information
- Do not operate this device near water.
- Clean only with a dry cloth.
- Do not block any ventilation openings.
- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Protect the power cord from being walked on or pinched.
- Only use attachments/accessories specified by the manufacturer.
- Unplug this apparatus during lightning storms or when unused for long periods of time.
11. Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official JOYO website. Keep your proof of purchase for any warranty claims.
