Owner’s Manual * With the factory settings, this device will enter Sleep mode (power conservation mode) when ten hours have elapsed since the last operation, or since the last audio input while in Stop mode. If you want to prevent the device from entering Sleep mode, hold down the left pedal while you turn on the power, and continue holding down it down for five seconds (p. 9).
Main Features Dedicated effects unit for the V-Guitar/GK pickup The GR-D is an effects unit specifically designed for the GK pickup, which individually extracts the signal of each string. Since each string’s signal is processed individually, you’ll be able to experience completely new sounds that could not be produced by guitars with conventional pickups of the past.
Installing Batteries Insert the included batteries (AA x 6) as shown in the diagram, being careful to observe the correct polarity. WARNING Handle batteries carefully • Batteries must never be recharged, heated, taken apart, or thrown into fire or water. • Never expose batteries to excessive heat such as sunshine, fire or the like. • Incorrect handling of batteries can cause leakage, overheating, fire, or explosion.
Panel Descriptions [TYPE] knob [GAIN], [COLOR], [TONE] knobs Selects the effect type. The [GAIN], [COLOR], [TONE] knobs will operate differently depending on the type you select, as follows.
Connections MIX/GUITAR INPUT jacks The sound of other devices can be input here. This input sound will be mixed with the sound of the GR-D and output via the OUTPUT jacks. * If nothing is connected to the GK IN connector, the L/ MONO jack will function as the GUITAR INPUT jack. You can connect a non-GK-compatible guitar using a 1/4” phone plug. *1 GK IN connector DC IN jack This jack is for connecting an AC adaptor (BOSS PSA series; sold separately).
Connections Turning On the Power Be sure to observe the following order when connecting devices and switching on the power to your equipment. If you turn on equipment in the wrong order, you risk causing malfunction or equipment failure. Connect the GK-Compatible Guitar g (Connect the AC Adaptor) g Connect the Amp g Turn On Amp Power * This unit is equipped with a protection circuit. A brief interval (a few seconds) after turning the unit on is required before it will operate normally.
Connections Using the GR-D in combination with the GR-S GK-compatible guitar GR-D GK IN GR-S US-20 You can use a US-20 (sold separately) to switch between playing the GR-D and GR-S, or playing both simultaneously using a single guitar. Guitar Amp * Two GK cables (1.2 meters) are included with the US-20. Using in combination with the GR-55 GR-55 GK-compatible guitar GK IN If the sound of the GR-55 is unnaturally distorted, reduce the volume of the GR-55.
Operating Selecting the MANUAL/MEMORY 1. Storing the MEMORY The [SELECT] button switches you between MANUAL, in which the current positions of the knobs determine the sound that’s output, and MEMORY 1–4, which provide for use of the stored settings. 1. Operate the knobs to create the sound you want. Here’s how to store your settings in MEMORY. Press the [SELECT] button. 2. Press the [WRITE] button.
Setting About Sleep Mode When ten hours have elapsed since the last operation or audio input, the GR-D will enter sleep mode (power conservation mode). From sleep mode, you can press the pedal to return to normal mode. * Battery power continues to be consumed even in sleep mode. To prevent battery consumption, turn off the power by removing the plug from the OUTPUT L jack. Disabling sleep mode 1. While holding down the left pedal, turn on the power (insert a plug into the OUTPUT L jack). 2.
Setting Adjust the Pickup Sensitivity 3. If you feel that the volume balance between the strings is incorrect or the sound is unnaturally distorted, check the way in which the GK pickup is attached. Check Play a string, and use the [TONE] knob to adjust the Pickup Sensitivity. Play string 1 at the maximum strength you would use during actual performance, and use the [TONE] knob to adjust the sensitivity so that the MANUAL indicator lights briefly at the maximum volume.
Troubleshooting Problem Check Action Replace with fresh batteries. Have the batteries run down? The power doesn’t come on Is the external device connected correctly to the OUTPUT L jack? Is the specified AC adaptor (PSA series; sold separately) connected correctly? No sound/volume is low Noise is produced Effect not applied to the MIX/ GUITAR INPUT jacks * The life of the supplied batteries may be limited, since its primary purpose was to enable testing. Check the connections again.
Specifications Roland GR-D: V-Guitar Distortion Nominal Input Level Input Impedance Nominal Output Level Output Impedance MIX INPUT: -10 dBu 173 (W) x 158 (D) x 57 (H) mm Dimensions GUITAR INPUT: -20 dBu MIX INPUT: 1 M Ω 6-13/16 (W) x 6-1/4 (D) x 2-1/4 (H) inches 1.
