JOYO JF-38 Volume Roll Boost Guitar Effect Pedal User Manual

June 5, 2024
JOYO

JOYO JF-38 Volume Roll Boost Guitar Effect Pedal

Thank you for purchasing our product, please read these instructions carefully before using it.

Warning

  1. Do not disassemble or repair this unit by yourself.
  2. Do not use or store this unit in the following circumstances: high temperature, high humidity, dirty or strong shock places.
  3. Do not drop off this unit or bump this unit off a hard surface
  4. Do not use cleaning liquid or alcohol to clean this unit in case of damage.
  5. Remove batteries if not using the unit for a long period of time.
  6. Please dispose of the used battery properly.

Battery replacement

The unit is without a battery

  1. With a screwdriver to open the back cover
  2. Put on the battery by placing the negative pole of the battery facing inside, Replace the back cover.

How to use

  • A. Connect the input jack with the guitar lightly, the effect pedal will start working automatically.
  • B. GAIN-adjust gain effect, which increases with the clockwise rotation of GAIN knob, reflecting as the increase of the output level. Please set GAIN to actual needs.
  • C. When the effect pedal is powered with a battery, it works only when the jack is connected with IN end; when the effect pedal is powered with an adapter, it would cut the battery and imply an adapter for the power supply.
  • D. If the pedal rests for a long time, please take out the battery in case of battery leakage or interior destruction of the pedals.

Specification

  • Input Impedance: 1M9
  • Output Impedance: 1KO
  • Running Current: 2mA
  • Power: 6F22 9V Battery/ DC 9V adapter
  • Dimension:118(L)x 68(W)x50(H) mm
  • Weight:200g

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